diff --git a/.commandcode/settings.json b/.commandcode/settings.json
index 25d1afd..772aa8b 100644
--- a/.commandcode/settings.json
+++ b/.commandcode/settings.json
@@ -20,4 +20,4 @@
     ],
     "additionalDirectories": []
   }
-}
+}
\ No newline at end of file
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..8ec4158
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+docs/acceptance/README.md text eol=lf
diff --git a/.gitignore b/.gitignore
index 4bba74a..e91c791 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,23 @@ __pycache__/
 # Local Claude Code settings (shared skills are committed; local settings are not)
 .claude/settings.local.json
 /.omp/skills
+
+# Local handoff backups and generated campaign output, never publication inputs.
+/.local-only/
+/out/
+/.harness/audit/
+/.harness/live-runs/
+/acceptance/evidence/
+/docs/architecture/evidence/
+# Missions are local execution state by default. Existing tracked templates stay
+# tracked; deliberately add future reusable templates with an explicit exception.
+/.harness/missions/*
+
+# Locally generated duplicate GitNexus skills; canonical nested skills are tracked.
+/.claude/skills/gitnexus-cli/
+/.claude/skills/gitnexus-debugging/
+/.claude/skills/gitnexus-exploring/
+/.claude/skills/gitnexus-guide/
+/.claude/skills/gitnexus-impact-analysis/
+/.claude/skills/gitnexus-refactoring/
+/.harness/sandboxes/
diff --git a/.harness/adapters/claude-code.yaml b/.harness/adapters/claude-code.yaml
new file mode 100644
index 0000000..878acac
--- /dev/null
+++ b/.harness/adapters/claude-code.yaml
@@ -0,0 +1,21 @@
+schema_version: uh.adapter.v0
+id: claude-code
+name: Claude Code
+description: Native Claude Code execution with exact model routing, stream supervision, guard hooks, and session recovery.
+runtime: claude-code
+capabilities:
+  - cli-execution
+  - non-interactive
+  - stream-json
+  - structured-events
+  - diff-output
+  - session-resume
+status: active
+config:
+  cli_command: claude
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    model: claude-fable-5-1[1m]
+    role: worker
+    permission_mode: default
diff --git a/.harness/adapters/command-code.yaml b/.harness/adapters/command-code.yaml
new file mode 100644
index 0000000..463cb91
--- /dev/null
+++ b/.harness/adapters/command-code.yaml
@@ -0,0 +1,17 @@
+schema_version: uh.adapter.v0
+id: command-code
+name: Command Code
+description: Native Command Code execution with persistent sessions and UH supervision.
+runtime: command-code
+capabilities:
+  - cli-execution
+  - json-output
+  - diff-output
+  - session-resume
+status: experimental
+config:
+  cli_command: cmdc
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    model: ""
diff --git a/.harness/adapters/oh-my-pi.yaml b/.harness/adapters/oh-my-pi.yaml
index 3c92a64..14493cc 100644
--- a/.harness/adapters/oh-my-pi.yaml
+++ b/.harness/adapters/oh-my-pi.yaml
@@ -3,7 +3,7 @@ id: oh-my-pi
 name: oh-my-pi
 description: >-
   Runtime adapter for oh-my-pi (omp), a multi-provider CLI coding agent.
-  Executes missions via `omp --print --mode json` with sessions ephemeral and
+  Executes missions via `omp --print --mode json` with persistent sessions and
   extensions/skills disabled by default for deterministic runs. Provider /
   account auth flows through OMP's own credential store and env vars.
 runtime: oh-my-pi
diff --git a/.harness/audit/events.ndjson b/.harness/audit/events.ndjson
deleted file mode 100644
index 297ee42..0000000
--- a/.harness/audit/events.ndjson
+++ /dev/null
@@ -1 +0,0 @@
-{"event":"project.init","timestamp":"2026-05-13T15:35:45.188Z","root":"/Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness","force":false}
diff --git a/.harness/missions/implement-uh-slice-template/team/integration-report.md b/.harness/missions/implement-uh-slice-template/team/integration-report.md
deleted file mode 100644
index 1c536f5..0000000
--- a/.harness/missions/implement-uh-slice-template/team/integration-report.md
+++ /dev/null
@@ -1,34 +0,0 @@
-# Team integration report: implement-uh-slice-template
-
-- Leader strategy: `merge`
-- Leader branch: `uh/team/implement-uh-slice-template/leader`
-- Workers: 2
-
-## Workers
-
-### `template-author` (codex)
-
-- Branch: `uh/team/implement-uh-slice-template/template-author`
-- Status: succeeded
-- Files touched: 9
-  - `.harness/audit/events.ndjson`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/diff.patch`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/events.ndjson`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/prompt.md`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/runtime-final.txt`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/runtime-result.yaml`
-  - `.harness/missions/implement-uh-slice-template/runs/20260525T073520Z-59a335/runtime-session.yaml`
-  - `examples/missions/templates/README.md`
-  - `examples/missions/templates/implement-uh-slice.yaml`
-- Leader merge: clean
-- Leader note: Updating 7300f7e6..1dc9f67f
-- Summary: Created the canonical dogfood mission template at examples/missions/templates/implement-uh-slice.yaml and the one-page operator guide at examples/missions/templates/README.md. The template uses shape: team, workflow_profile: staged, a complete acceptance_criteria block, concrete valid codex team adapter defaults, and verification.required_checks that enforce typecheck and tests. Verified with bun run typecheck, direct validateMission YAML parsing, and README existence; the broad test suite was attempted but is blocked by this worker sandbox’s process/network/git-signing restrictions rather than the new template.
-
-### `readme-author` (oh-my-pi)
-
-- Branch: `uh/team/implement-uh-slice-template/readme-author`
-- Status: blocked
-- Files touched: 0
-- Leader merge: clean
-- Leader note: skipped: worker status=blocked
-- Summary: _(no runtime-final.txt captured)_
diff --git a/.harness/sandboxes/index.yaml b/.harness/sandboxes/index.yaml
deleted file mode 100644
index 33666ca..0000000
--- a/.harness/sandboxes/index.yaml
+++ /dev/null
@@ -1,2 +0,0 @@
-schema_version: uh.sandboxes-index.v0
-sandboxes: []
diff --git a/.hermes/plans/2026-05-13_012712-ultimate-harness-now-sprint.md b/.hermes/plans/2026-05-13_012712-ultimate-harness-now-sprint.md
index 383aa95..5161d6f 100644
--- a/.hermes/plans/2026-05-13_012712-ultimate-harness-now-sprint.md
+++ b/.hermes/plans/2026-05-13_012712-ultimate-harness-now-sprint.md
@@ -19,7 +19,7 @@ uh init
 
 ## Current context
 
-- Repository: `/Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness`
+- Repository: `/Users/example/AgenticEngineering/ultimate-harness`
 - Current branch: `main`
 - Latest commit: `7b69603 docs: add Ultimate Harness documentation spine`
 - Working tree appeared clean before this plan was written.
diff --git a/.omp/config.yml b/.omp/config.yml
index 95d2278..f223591 100644
--- a/.omp/config.yml
+++ b/.omp/config.yml
@@ -1,5 +1,4 @@
 disabledProviders:
-- agent-plugins
 - claude
 - claude-plugins
 - codex
@@ -31,7 +30,6 @@ skills:
   - handoff
   - write-docs
   - to-tickets
-  - log-eod
   - api-design
   - domain-modeling
   - tdd
diff --git a/AGENTS.md b/AGENTS.md
index ab85e88..ad72e1a 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -2,8 +2,8 @@
 
 Runtime-agnostic CLI and artifact lifecycle for planning, running, verifying, and promoting agentic software work.
 
-Workspace standards apply here: [../docs/standards/README.md](../docs/standards/README.md).
-This file adds only what is specific to this repo. Where they conflict, this file wins, and the conflict is recorded under `## Deviations`.
+This file defines the repository-specific development rules. Architecture and
+workflow references are maintained in [docs/README.md](docs/README.md).
 
 ## Stack
 
@@ -61,6 +61,8 @@ This file adds only what is specific to this repo. Where they conflict, this fil
 4. GitNexus `context`, `clusters`, `processes`, or `process/{name}` resources for codebase and flow discovery
 5. The matching `.claude/skills/gitnexus/` exploring, impact-analysis, debugging, refactoring, guide, or CLI skill before that task kind
 
+Indexes and runner bootstraps are local generated state; index the current checkout rather than relying on published machine-specific graph identifiers or counts.
+
 ## Scope discipline
 
 - Default to small, reversible changes that reuse existing package and runtime patterns.
@@ -80,3 +82,4 @@ rules and is materialized from `scripts/harness-matrix.json`; never hand-edit it
 ## Deviations
 
 - GitNexus impact analysis is mandatory before symbol edits because this repo relies on its indexed cross-runtime execution graph.
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9e1cd2..dd38e76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,141 @@ All notable changes to `@agenticengineeringagency/ultimate-harness` are recorded
 
 Issues are tracked in [Linear](https://linear.app/agenticengineering-agency/team/UH/active); PRs live in [GitHub](https://github.com/Agentic-Engineering-Agency/ultimate-harness/pulls).
 
+## [Unreleased]
+
+### Added
+- Native ACP (Agent-Client Protocol) v1 adapter: `acp` runtime supporting headless agent orchestration via standard JSON-RPC 2.0 over stdio with run-id integrity, strict `uh.runtime-result.v0` validation, wire-conformance error mapping, bidirectional permission request handling (`session/request_permission`), timeout and cancellation signal threading, and 17 regression tests.
+- Progressive semantic routing: `chooseSemanticRoute` in `src/harness/auto-route.ts` combining Level 0 deterministic eligibility (runtime_requirements, capabilities, fleet, and `decision_policy.allowed_runtimes`) with Level 1 TypeSafe System One (JEV) classification. Evaluates task cognitive complexity and selects the optimal adapter and model from candidate options with calibrated confidence, writing `uh.decision-receipt.v0` receipts.
+- Mission `decision_policy` schema: `DecisionPolicySchema` in `src/schema/mission.ts` allowing missions to specify `enabled`, `min_confidence`, `allowed_runtimes`, `allowed_models`, `require_provider_for_route`, `require_provider_for_retry`, `escalation_model`, and `fallback_model`.
+- ACP session template: `.harness/templates/acp-worker.yaml` and runbook `docs/runbooks/acp-setup.md`.
+
+- `guard.allow_native_subagents` (default `false`). Native sub-agent tools (`task`, `agent`, `subagent`, `spawn_agent`, `dispatch_agent`, `delegate`) are denied by tool name for every role; a denied worker is told to end with `ESCALATE: <what its orchestrator should delegate>`.
+- Delegated-agent route attestation. Supervision reads the structured `details.progress[]` / `details.jobs[]` metadata of native tool events and stops the run with `route_mismatch`, naming the route, when a sub-agent runs on a provider or model outside the assignment. Tool arguments and tool text are never read.
+- oh-my-pi runs receive a per-run `omp-overlay.yml` through `--config`. It pins every OMP model role to the assigned model, sets `task.eager: default`, disables the advisor, and sets `task.maxRecursionDepth: 0` so the native `task` tool is not offered (`1` when the guard allows native sub-agents).
+- Project fleet policy. `fleet.routes` in `.harness/project.yaml` lists the models the project authorizes, per adapter and role. `uh mission run`, `run-all` and every `run-team` worker are refused before spawn when the assigned model is missing or outside the fleet. `--force` does not bypass it. A project without a `fleet` block is unchanged.
+- Codex adapter: optional `runtime_config.model`, passed to `codex exec`, with route attestation through the shared supervised process runner. Without a configured model behavior is unchanged.
+- `containment_escape` guard class: launches that leave the supervised process tree are denied (`Win32_Process.Create` through WMI or CIM, scheduled tasks, services, `setsid`, `systemd-run`, `disown`, `at`, `batch`, `crontab` edits, backgrounded `nohup`). Read-only forms such as `schtasks /query` stay allowed.
+- `guard_tamper` guard class: writes to the guard policy or log, or to harness state outside the worker root, are denied and stop the run with `policy`.
+- `limits.max_thinking_ms`: reasoning output counts as liveness for the stall check, bounded by this budget (default four times `stall_timeout_ms`). Repetitive reasoning is detected from window frequencies and does not count as live. Reasoning text is never persisted.
+- Experience store: a read-only index over settled runs with grouping by runtime, model, workflow profile or stop code, and a success-rate versus cost Pareto frontier. Unknown cost, tokens and durations stay unknown.
+- OpenTelemetry export: `uh observatory export <mission> --otlp` writes one run as OTLP/JSON following the GenAI semantic conventions (`invoke_agent`, `chat`, `execute_tool`) with deterministic ids. Tool arguments, results, message text and prompts are never exported; tool targets are opt-in.
+- `uh observatory runs [--mission] [--group-by] [--json]`.
+- Terminal contract for `uh mission run`: `--quiet`, a final single-line `UH_RESULT {json}` without absolute paths, and exit codes 0 passed, 1 failed, 2 blocked, 130 cancelled.
+- Native event stream loop-probe: `src/harness/loop-probe.ts` projects Command Code (`toolCallId` sequence from `tool_queued` to `tool_completed`) and oh-my-pi events accurately, calculating real repeat and alternating signatures without false positives.
+- OTLP Trace Push client: `src/harness/otlp-push.ts` sends exported GenAI traces to an OTLP HTTP endpoint with bounded retries, capped `retry-after` backoff, and strict secret protection.
+- Run arm comparison and A/B template evaluation: `src/harness/run-comparison.ts` compares run sets using Wilson score intervals and cost-per-success without misrepresenting unpriced runs.
+- Team run salvage: `src/harness/team-run.ts` preserves verified work from workers stopped by limits or deadlines when their declared outputs and checks pass, recording eligible branches in the integration report.
+- Consistent dry-run overrides: `uh mission dry-run` mirrors `uh mission run` override precedence for all runtime adapters.
+- Live-run registry and `uh ps`: every runtime attempt claims a registry entry at the project root, and `uh ps` reports each run's mission, team role, runtime and model, verdict (`live`, `orphaned`, `stale`, `settled`), turns, denials, heartbeat age, last tool and native pids. `--json` is machine-readable, `--all` includes runs settled within 24 hours, any orphaned run exits 3, and `uh status` prints a live-runs summary line.
+- `uh kill` stops runs from the project root by id or unique prefix, by mission, role or team, `--all` or `--orphans`. It cancels through the controller, waits a bounded `--wait-ms`, terminates only the recorded controller's process tree when survivors remain, and reports `cancelled_gracefully`, `force_killed`, `orphan_settled`, `still_alive` or `skipped_settled` per target. An orphan settles in place through the guardian reconcile path with a `controller_lost` receipt, and `--team` stops workers before the team controller and marks team state cancelled so integration never lands.
+- Independent review packets pin the report to the request: the emitted JSON schema enumerates exactly the acceptance and check ids the request allows (an empty list allows nothing), the packet objective names the required ids per source and directs anything else to `observations`, verified observations are carried into the assessment without changing the recommendation, and the emitted review mission carries a guard policy limiting writes to the report directory with git, package installs and network denied.
+- The acceptance registry ports every capability to the Command Code fleet as 17 `<id>-cmdc` capability ports plus three `G1-cmdc-*` guard probes, with the model carried by the registry so no per-run override is needed, and a costless support wrapper strips runtime usage so the unknown-cost admission route is exercised without spend.
+- Session templates bundle how an attempt is executed: adapter, runtime overrides, limits, recovery, guard defaults and a budget tier. Mission values win over the template, write roots are never widened, a strict template refuses missions without narrow explicit write roots, with native sub-agents, or with network clients, and `uh mission run` and `dry-run` accept `--template`, blocking unknown or invalid templates before spawn.
+- Read-only MCP server over the run store: `uh mcp serve` answers newline-delimited JSON-RPC on stdio for the stateless 2026-07-28 revision and the 2025-11-25 handshake with three tools (`uh_status`, `uh_runs`, `uh_run`). Identifiers are validated before any path is built, every returned path is relative, and no prompt, runtime output or file content is returned.
+- Command Code `runtime_config.role: orchestrator` arms the guard with controller commands, so harness mission commands pass while agent CLIs, native sub-agent tools, forced runs and chained commands stay denied. Workers are unchanged, and fleet admission applies the role.
+- Team worker runs are indexed: the run index reads each worker's canonical run through the team parent's recorded state, attaches the team mission and role, and lets the team-recorded view win over the bare mission scan. `uh observatory runs` shows token totals and a `cost_source` column.
+- Run cost provenance with the operator price table: `.harness/prices.yaml` (`uh.prices.v0`) holds operator-maintained USD rates per model, matched case-insensitively. A run's cost resolves to `reported` or `estimated`, or stays unknown with the reason naming the gap; Command Code streams report token counts but no price, incomplete token counters are never priced, and a missing or malformed table prices nothing. Team budget admission treats an estimated cost like a reported one.
+- Settlement conflict records: when `runtime-result.yaml` and the runtime-control receipt disagree on the terminal status, a `settlement_conflict` record is appended. A confirmed settlement outranks the result (status rewritten, exit codes annotated or forced); an unconfirmed receipt never rewrites a result.
+- Injectable supervision clock: `runRuntimeProcess` accepts a clock and poll scheduler, so supervision and recovery tests advance stall, startup and timeout budgets deterministically instead of waiting on wall time.
+- Capability inventory: `docs/verification/capability-inventory.md` maps every CLI capability to its implementation, tests and acceptance id, classifies each row, and lists the rows most dangerous to leave unproven.
+
+### Changed
+
+- Agent-client denial no longer depends on `deny_network_clients`. A mission that sets `runtime_requirements.needs_network` previously lost agent-client denial along with network denial. Workers may not spawn agents; an explicit `guard.agent_clients: []` is the only opt-out.
+- Default `agent_clients` adds `claude`, `opencode`, `qwen`, `goose` and `cursor-agent`.
+- `uh mission run` refuses to run in the project root when no sandbox is bound to the mission, unless `--no-sandbox` is passed. `uh mission dry-run` prints the routing.
+- Team and sandbox worktrees are created with `git worktree add --lock --reason` and unlocked before removal. UH no longer runs a global `git worktree prune`.
+- Provider and model identifiers are compared case-insensitively for route attestation and fleet admission, with an optional provider prefix reconciled. There is no alias table and no partial matching.
+- System One judgments ask one bounded yes/no question per criterion that has no deterministic result plus a fixed battery about the report itself, compose the three-verdict outcome in code with named thresholds, and record the answering model, latency and usage in the receipt. Requests time out and retry 429 and 529 with backoff, and the requested model can be pinned.
+- Verification hands System One only facts the harness established: criteria with a check command carry their deterministic result and are never sent, the others carry their description, tamper comes from the policy stop code, and deterministic failures still dominate.
+- Dispatch prompts render every list section explicitly: an empty Read First, Expected Artifacts, Verification Checks, Constraints or Acceptance Criteria section says `none, add nothing` instead of being omitted.
+
+### Fixed
+
+- Tool Guard judges agent clients by executable position instead of a whole-command text match. `codex.cmd`, `omp.exe`, path-qualified binaries, the PowerShell call operator, `env`/`xargs`/`pnpm dlx` launchers, `bash -c` bodies and command substitutions are denied; `grep -r omp src` and `cat docs/codex.md` are no longer false denials that consumed a worker's denial budget.
+- Workers can no longer start paid runtimes through UH itself (`uh mission run`, `run-all`, `run-team`, `uh acceptance run`, or `node dist/cli.js ...`). Read-only UH commands stay available, and the Claude Code orchestrator role keeps its controller-command allowance.
+- A runtime that resolves helper or sub-agent models from operator-global settings could spend on a route other than the assigned one, because only the top-level session was pinned and attested. Roles are now pinned per run and delegated routes are attested.
+- Tool Guard resolved every relative write target against the worker root, so a command that changed directory first (`cd <elsewhere> && Set-Content <relative path>`) wrote outside the sandbox. Directory changes are tracked through a command, including nested shell bodies and an explicit `cwd` on the tool input; an unresolvable directory change denies every later write in that command.
+- A concurrent reader could fail a run: replacing `runtime-control.json` by rename fails on Windows while any process has the file open, and the failed heartbeat stopped the run with `controller_error`. Renames retry with bounded backoff, a periodic heartbeat that cannot be persisted no longer stops the run, and terminal writes stay strict.
+- Team worker commits swept in files the harness writes into the worker root (the Command Code hook configuration, the worktree-local ignore file, a tracked audit log). Commits now exclude the protected roots by pathspec, and a worker that touched only harness state produces no commit.
+- The Command Code health probe ran the CLI without `--no-auto-update`, so an adapter check could start a self-update that replaced the runtime while another run was launching it.
+- The acceptance report no longer links evidence that does not exist, and present evidence links resolve from `docs/acceptance/`.
+- Mission turn limits reach the native runtime: Command Code and Claude Code receive `--max-turns` derived from `limits.max_turns` (Command Code's silent native default of 100 turns is recorded on the plan), and a native terminal cap maps to a UH stop code: `max_turns` settles as `turn_limit`, native time caps as `timeout`, and any other failing native stop as `runtime_error` with the native reason copied into `stop_reason`.
+- Command Code shell results carry no error field, so supervision reads the leading `Exit code: <n>` line of the result text: a non-zero code is a failure, a later mention of `Exit code` in stdout is not, and unknown event shapes are not failures. Repeated failing shell commands now reach the repeated-failure stop.
+- `uh mission cancel` resolves the run through the same discovery `uh ps` uses, so a team worker can be cancelled from the project root even though its runtime control file lives deeper in the harness tree.
+- Diff capture retries each git command once after a settle delay, so a transient spawn failure cannot fail an otherwise settled run, and a capture failure after settlement is recorded as `diff_capture` bookkeeping instead of changing status or exit code.
+- Sandboxing works without a tracked sandboxes index and across volumes: a missing index means an empty one created on demand (the audit log and the index are no longer tracked), an invalid index still fails loudly, and the directory backend retries once with `--no-hardlinks` when git cannot hard-link objects across the volume holding the object store.
+- Guard hooks run from an immutable per-content snapshot in a per-user cache instead of the mutable build directory, so a rebuild during a run cannot replace the guard under a live worker. An existing snapshot is verified before reuse, and a mismatch fails closed.
+- The acceptance runner installs the support shim its registry entries declare: the copied support directory is prepended to the child PATH for that run only, and `shim_on_path` is recorded in the evidence.
+- Acceptance guard facts are read from the run's tool-guard log on disk and count denials only, with allow lines recorded separately, so a guard probe's recorded denial budget matches what actually fired.
+- The acceptance snapshot resolves `node_modules` by walking up from the harness root (a worktree or leader tree without its own install resolves the parent checkout), refuses loudly with exit 2 when none exists, recreates a dangling junction, and initializes Windows workspaces with `core.longpaths true` so deep fixture paths can be committed.
+- Every acceptance evidence record stores the mission CLI outcome (`exit_code` with stdout and stderr tails); a run that produced no observed status keeps that fact visible instead of fabricating `failed`, and its FAIL line carries the first stderr line.
+- The acceptance costless wrapper resolves a `.cmd` shim to the Node entry point it wraps and spawns that directly, falling back to the Windows shell only for shims it cannot parse, so the unknown-cost route attests on Windows.
+- The committed acceptance report drift check renders against an empty evidence root, so local campaign records never fail the check; `uh acceptance report` keeps rendering local evidence for humans.
+
+## [0.11.0] — 2026-09-21
+
+### Added
+
+- Team workers now receive per-worker objectives, runtime budgets, declared outputs, and seeds with canonical contract and settlement records.
+- Deadline grace recovery now preserves an explicitly incomplete deliverable and missing-work handoff before settling the run.
+- Native runtime supervision now reports denial budgets and repeated commands, stops protected-path mutations, and resumes recoverable denials with source stop facts.
+- Acceptance missions now record attested real-runtime evidence, freshness-aware status, and generated capability reports.
+- Acceptance freshness requires evidence from the current harness commit.
+- Acceptance runtime overrides now select the requested adapter explicitly and warn when they differ from registry defaults.
+- Acceptance campaigns inherit caller environment variables and derive hook distribution paths from the known source root.
+- Acceptance evidence records fact sources for merged attempts, with deterministic sorted-run selection and fixture seams.
+- Attempted fixture-only missions now render their actual failure or pass outcome instead of hiding it as fixture-only.
+- Guardian acceptance requires settlement confirmation and a terminal guardian receipt.
+- Acceptance registry entries carry stable capability identifiers independently of probe names.
+- Deadline acceptance exercises an unscripted task rather than treating a turn-limit fixture as deadline proof.
+- Team budget acceptance remains unproven where canonical state does not expose the required budget or reservation fact.
+- Acceptance report generation is checked for drift against the registry and available evidence.
+- Resource-wave admission now maps `mapResourceWaves` with memory-headroom checks and cost reservations, preventing unsupported workers from entering a wave.
+- Team workers now carry distinct mission contracts through `team.workers[].mission_id`.
+- Native Claude Code adapter with structured event capture, tool-guard hooks, route checks, and saved-session recovery. End-to-end coordinator delegation is not yet validated.
+- TypeSafe System One integration in verification and independent-review collection, with typed verdict parsing, compact evidence summaries, and persisted decision receipts. Semantic routing, scope-change, retry policy, and confidence thresholds remain unimplemented.
+- Optional live usage in runtime-control receipts and active non-team Observatory projections. This does not enforce token or context budgets.
+
+### Fixed
+- Command Code print-mode runs now select non-interactive permissions through the harness guard (`--yolo`) and refuse ambiguous launches before spawn.
+- Guarded Command Code runs now fail closed when hook invocation evidence is absent, preventing `--yolo` workers from running unguarded.
+- Team integration-report paths in canonical team state now use relative forward-slash artifact paths, including cross-volume targets.
+- Independent reviewers write reports to permitted workspace outputs; protected request and assessment artifacts remain controller-owned.
+- Worker output declarations reject protected runtime paths before execution.
+- Runtime callback failures retain diagnostic details instead of reporting only a generic controller error.
+- Interrupted Claude streams retain known usage counters without treating an unfinished message as a complete total.
+- Verification preserves deterministic failures when a semantic evaluator recommends a pass.
+
+- Command Code planning now refuses print-mode launches without a guard or explicit permission mode for every configured `cli_command`, including custom executables.
+- Command Code `shell_command` queue events now stop protected-root shell mutations before execution.
+- Guard supervision now distinguishes a hook that ran but could not log from a hook that did not run.
+- Command Code guard hooks now record every invocation and fail closed when the evidence log cannot be written.
+- Repeated guarded Command Code setup now replaces the managed hook without accumulating duplicate `PreToolUse` entries.
+- Git mutation detection now keys on the Git subcommand, avoiding false positives from read-only text such as `git log --grep=commit`.
+- Native OMP progress is persisted before child exit, including UTF-8 and trailing-line handling. Nested assistant content and terminal errors are interpreted without treating arbitrary response IDs as authentication failures.
+- Windows runtime guardians are compiled once into a per-user, source-hash cache, use extended-length paths for deep run directories, and normalize forward-slash variants before prefix detection, with atomic publication and visible per-run fallback when the cache is not writable.
+- Sandboxed OMP execution publishes run facts to the host's canonical mission artifacts without promoting product changes. Cancellation settles the selected run and matching mission mirrors without overwriting newer run facts. Initial and streaming event-write failures settle writable terminal artifacts; the existing Observatory prefers an active run over a stale terminal result and rejects unsafe route metadata.
+- OMP token, cache, and reported cost totals aggregate completed assistant turns without counting repeated update/end envelopes, while retaining distinct explicit message identities. Incomplete measurements remain unknown rather than appearing as complete totals.
+- Product diff capture includes staged and unstaged text and applicable binary patches, leaves the Git index unchanged, and excludes generated harness bookkeeping while retaining harness configuration changes.
+- Team runs publish parent and isolated worker facts to durable host artifact scopes. The existing Observatory shows active/completed teams and reported worker usage after normal worktree cleanup; the leader's verification artifact is retained with the parent run.
+- Native OMP CLI interruption handles Ctrl-C (`SIGINT`) as well as `SIGTERM`, stops the owned process tree, and persists terminal cancellation facts before exit.
+- Verification timeouts terminate the owned process tree on Windows rather than leaving child commands behind. OMP and verification subprocesses no longer request separate Windows console windows.
+- Native OMP and Command Code process capture has a configurable combined-output byte limit (64 MiB by default). Exceeding it settles the owned tree as a failed run and retains only the admitted transcript prefix.
+- Recovery accounting includes failed source attempts, preserves mixed-route costs, and leaves incomplete totals unknown. Team accounting and live controls use each worker's canonical artifact root.
+- Anthropic, OpenRouter, and Hermes-proxy persist reported usage in canonical results. Runtime cost estimates carry provenance and are not presented as provider billing receipts.
+- Mission verification now enforces declared output files, JSON syntax, and optional final-line completion markers. Workspace-escaping paths and missing evidence fail through the existing verification result instead of requiring a separate launcher checker.
+- Command Code supports optional explicit USD pricing with cache-overlap semantics. Complete measured counters and an exact observed-model match are required; canonical receipts retain the configured rates and label the amount as an estimate.
+- Mixed native OMP routes no longer inherit the last provider/model as their sole attribution. Invalid counters and numeric-overflow totals remain unknown while independently complete usage and cost measurements are retained.
+- Finalized native lifecycle events now age under the existing Observatory freshness policy instead of remaining fresh indefinitely; confirmed terminal outcomes stay terminal.
+- Native OMP and Command Code runs fail on mismatched or unattested assigned routes, preserve the requested route in control receipts, and refuse saved-run recovery from route-policy stops. OMP honors adapter default model/provider settings; Command Code no longer receives unconditional workspace auto-trust. Unsupported inner `worktree_mode` settings fail before launch.
+- Windows canonical artifact transactions now release kernel-owned locks on controller death. Concurrent CLI updates remain serialized; legacy filesystem-lock evidence is retained rather than guessed stale or deleted.
+- Hermes CLI execution and OpenSandbox command templates reuse UH's owned process runner. Windows Node entrypoints are resolved directly, POSIX templates use a native POSIX shell, and timeout settlement completes before worktree cleanup.
+- Artifact publication rejects ancestor symlinks/junctions as well as linked target files, preventing a replaced run directory from redirecting writes outside the mission.
+- CLI integration tests launch through Node/tsx instead of Windows-incompatible extensionless shell shims. Directory-link fixtures work without granting symbolic-link privileges.
+- Independent review is emitted and collected through normal UH missions: full required-input snapshots, native fresh-session/model assignment guards, shared output validation, and hash-bound advisory assessments. Missing evidence or changed contracts cannot pass; human acceptance remains separate.
+- Team runs admit workers in resource-bounded waves and block remaining admission when resources or completed cost accounting cannot support another worker.
+
 ## [0.9.0] — 2026-05-29
 
 Milestone **"Memory & adapter matrix"** ([Linear UH-131 / UH-136 / UH-137](https://linear.app/agenticengineering-agency/team/UH/active); GitHub PRs #204–#206 / #214 / #215 / #216). Bundles everything merged to `dev` since v0.8.0: a native pay-per-token Anthropic adapter (experimental), harness-side Honcho memory operations with a per-mission opt-out, the team-run dogfood verdict/artifact fixes, and the Phase-0 DX hardening (real `uh --version`, opt-in telemetry primitive, adoption docs, curated npm allowlist, CI plugin gates).
@@ -101,7 +236,7 @@ Epic 7 (adapter capability routing + cost) and Epic 8 (SDD hardening) completed,
 
 ## [0.5.0] — 2026-05-20
 
-Epics 6–8 integrated on `dev` from feature branches (live observability, adapter auto-routing, SDD hardening). Execution spec: [`docs/specs/epics-6-7-8.md`](docs/specs/epics-6-7-8.md).
+Epics 6–8 integrated on `dev` from feature branches (live observability, adapter auto-routing, SDD hardening). Execution spec: [`specs/epics-6-7-8.md`](specs/epics-6-7-8.md).
 
 ### Added
 
diff --git a/CLAUDE.md b/CLAUDE.md
index 43c994c..43d13df 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1 +1,46 @@
 @AGENTS.md
+
+<!-- gitnexus:start -->
+# GitNexus — Code Intelligence
+
+This project is indexed by GitNexus as **uh-native-run-facts** (8302 symbols, 18734 relationships, 420 execution flows).
+
+> Index stale? Run `node .gitnexus/run.cjs analyze --index-only` from the project root — it auto-selects an available runner. No `.gitnexus/run.cjs` yet? Bootstrap with `npx`, `bunx`, or `pnpm dlx` — e.g. `bunx gitnexus@latest analyze` (npm 11 npx crash; #1939).
+
+## Always Do
+
+- **MUST run impact before editing.** Use `impact({target: "symbolName", direction: "upstream"})` or `node .gitnexus/run.cjs impact "symbolName" --direction upstream --repo .`; report callers, processes, and risk. Never substitute grep for graph analysis.
+- **MUST analyze graph changes before committing.** Use `detect_changes({scope: "all"})` (MCP) or `node .gitnexus/run.cjs detect-changes --scope all --repo .` (CLI fallback). `partial: true` or `truncated: true` is not a clean check — a zero means unseen, not unaffected; re-run it. For regression review: `detect_changes({scope: "compare", base_ref: "main"})` or `node .gitnexus/run.cjs detect-changes --scope compare --base-ref "main" --repo .`.
+- MUST warn on HIGH/CRITICAL `risk` pre-edit; never use `riskSharedAxes` to waive a HIGH/CRITICAL `risk` warning. Compare File/symbol: MCP File omits axes; Graph-RAG expands File.
+- **MUST treat `risk: UNKNOWN` as unresolved, not as low.** An empty caller set is not evidence the symbol is unused — it can also mean the callers are not resolvable by the index (plain-object property access, dynamic dispatch, cross-language calls). `impact` pairs `UNKNOWN` with a `riskNote` saying so. Confirm with a text search before treating the symbol as safe to change or delete; do not proceed on the strength of a zero.
+- **MUST use `query({search_query: "concept"})` for concepts/flows, `context({name: "symbolName"})` for a named symbol, or `impact` for blast radius, on read-only callers, dependencies, imports, or execution flow.** Graph first; text search only for empty/`UNKNOWN`/literals.
+- For security review, `explain({target: "fileOrSymbol"})` lists taint findings (source→sink flows; needs `analyze --pdg`).
+
+## Never Do
+
+- NEVER edit a function, class, or method before MCP/CLI impact analysis.
+- NEVER ignore HIGH or CRITICAL risk warnings from impact analysis, and never read `UNKNOWN` as an all-clear — it means the walk could not answer, which is the one verdict that requires confirming by other means.
+- NEVER rename symbols with find-and-replace — use `rename` which understands the call graph.
+- NEVER commit before MCP/CLI graph change analysis.
+
+## Resources
+
+| Resource | Use for |
+| --- | --- |
+| `gitnexus://repo/uh-native-run-facts/context` | Codebase overview, check index freshness |
+| `gitnexus://repo/uh-native-run-facts/clusters` | All functional areas |
+| `gitnexus://repo/uh-native-run-facts/processes` | All execution flows |
+| `gitnexus://repo/uh-native-run-facts/process/{name}` | Step-by-step execution trace |
+
+## CLI
+
+| Task | Read this skill file |
+| --- | --- |
+| Understand architecture / "How does X work?" | `.claude/skills/gitnexus-exploring/SKILL.md` |
+| Blast radius / "What breaks if I change X?" | `.claude/skills/gitnexus-impact-analysis/SKILL.md` |
+| Trace bugs / "Why is X failing?" | `.claude/skills/gitnexus-debugging/SKILL.md` |
+| Rename / extract / split / refactor | `.claude/skills/gitnexus-refactoring/SKILL.md` |
+| Tools, resources, schema reference | `.claude/skills/gitnexus-guide/SKILL.md` |
+| Index, status, clean, wiki CLI commands | `.claude/skills/gitnexus-cli/SKILL.md` |
+
+<!-- gitnexus:end -->
diff --git a/README.md b/README.md
index 10bfc52..7d97985 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,17 @@ UH ships an end-to-end CLI with a schema-backed artifact lifecycle and seven wir
 | `hermes-proxy` | active | HTTP client targeting a local `hermes proxy` instance (Hermes Agent ≥ 0.14.0). Officially sanctioned OAuth-backed subscription routing — replaces the OMP stealth path. See [`docs/architecture/adapter-hermes-proxy.md`](./docs/architecture/adapter-hermes-proxy.md) and [`docs/runbooks/hermes-proxy-setup.md`](./docs/runbooks/hermes-proxy-setup.md). |
 | `openrouter` | active | OpenAI-compat HTTP client for [openrouter.ai](https://openrouter.ai) — the cheapest pay-per-token routing target. API key via `OPENROUTER_API_KEY` (never the manifest); a missing key makes `uh adapter check openrouter` degrade gracefully. See [`docs/runbooks/openrouter-setup.md`](./docs/runbooks/openrouter-setup.md). |
 | `pi` | active | Drives the vanilla `pi` agent CLI (`pi --print --mode json --no-session`) — the base CLI that oh-my-pi extends. `config.cli_command` overridable. See [`docs/runbooks/pi-setup.md`](./docs/runbooks/pi-setup.md). |
-| `anthropic` | experimental | Native pay-per-token Anthropic Messages API — the official, ToS-clean alternative to the OMP stealth path. API key via `ANTHROPIC_API_KEY` (env-only, never the manifest); a missing key makes `uh adapter check anthropic` degrade gracefully. Shipped v0.9.0 (#214); graduation to `active` pending live-smoke. |
+| `anthropic` | active | Native pay-per-token Anthropic Messages API — the official, ToS-clean alternative to the OMP stealth path. API key via `ANTHROPIC_API_KEY`. |
+| `command-code` | active | Command Code native execution with persistent sessions, process trees, and Tool Guard supervision. |
+| `claude-code` | active | Claude Code adapter with structured event capture and saved-session recovery. |
+| `acp` | active | Agent-Client Protocol (ACP) v1 runner for headless agent orchestration via standard JSON-RPC 2.0 over stdio. See [`docs/runbooks/acp-setup.md`](./docs/runbooks/acp-setup.md). |
+
+Unreleased development (v0.11.0) includes native `command-code` and `claude-code`
+adapters, runtime supervision and recovery improvements, platform neutrality fixes,
+and semantic evaluation during verification and independent review. These changes
+are an intermediate milestone towards 1.0. See [Changelog](./CHANGELOG.md),
+[runtime limitations](./docs/runtime-targets.md), and the
+[1.0 roadmap](./docs/ROADMAP.md#10--integrated-execution-lifecycle).
 
 Cross-cutting protocols every adapter participates in:
 
@@ -63,6 +73,7 @@ Start with the [quickstart](./docs/quickstart.md), the [configuration guide](./d
 - [Runtime adapter contract](./docs/architecture/runtime-adapter-contract.md) — includes the UH-28 sentinel protocol
 - [Mission packet schema](./docs/architecture/mission-packet-schema.md)
 - [Verification and promotion lifecycle](./docs/architecture/verification-and-promotion.md)
+- [Progressive decisions](./docs/architecture/progressive-decisions.md) — implemented semantic evaluation, authority boundaries, and proposed policy flows.
 - [Telar governance and UH Run Control boundary](./docs/architecture/telar-integration.md)
 
 Runbooks:
@@ -110,7 +121,7 @@ uh validate --all-missions
 # Render the runtime invocation without launching.
 uh mission dry-run .harness/missions/m1-example/mission.yaml --runtime hermes
 
-# Execute the mission. --runtime accepts: hermes | codex | hermes-proxy | openrouter | pi | oh-my-pi | anthropic.
+# Execute the mission using an installed adapter; see `uh mission run --help` for supported runtimes.
 uh mission run .harness/missions/m1-example/mission.yaml --runtime hermes
 
 # Run the mission's declared verification checks.
diff --git a/acceptance/README.md b/acceptance/README.md
new file mode 100644
index 0000000..060ccb9
--- /dev/null
+++ b/acceptance/README.md
@@ -0,0 +1,21 @@
+# Acceptance missions
+
+Acceptance missions measure harness mechanisms against a real runtime, not model creativity. Every mission follows these rules:
+
+- State one exact, small action with an exact file and exact content; avoid vague design objectives.
+- Use the lightest initialized workflow profile (`bugfix-contained`) rather than `spec-first-feature`.
+- Team missions use `verification.required_checks` with the `noop` check (`node -e "process.exit(0)"`), `sandbox.backend: git-worktree`, and `promotion_policy: human-approved`.
+- Use `max_turns: 12` for ordinary actions and `thinking: low` unless the mechanism under test requires otherwise.
+- Tell workers not to run git or install packages, and keep files under `out/` except an explicitly named protected-path probe.
+- Register structural expected outcomes only: statuses, stop codes, and canonical records, never model wording.
+- Evidence records runtime-reported usage and cost with provenance. Missing cost remains unknown, even when token counters are available; a runtime estimate is not a provider invoice.
+
+Run the registered missions with `uh acceptance run --all --workspace <fresh-dir>`, inspect `uh acceptance status --json`, and regenerate the report with `uh acceptance report`. A capability without fresh passing real-runtime evidence remains unproven regardless of tests or fixture smokes.
+
+Operational rule: do not overlap an acceptance campaign with `npm run build` or any command that removes and recreates `dist/`; the campaign snapshots and preloads its runtime modules once at startup.
+
+Mechanisms that cannot be observed through a real runtime are registered with `real_mission: not_applicable`, a reason, and state `fixture_only`; fixture smoke evidence is informational and never counted as proven or failed.
+
+Registry entries include an inventory `capability` id; expected `fact_sources` is a selection instruction: each named field is read from the first or last sorted attempt. Evidence records retain the actual source used for each field; sources are informational and are never compared as outcome facts.
+
+The report is generated from the registry and locally available evidence; the drift test compares `docs/acceptance/README.md` with a fresh render. The public repository contains reusable definitions and support fixtures, not local execution history. Generated evidence under `acceptance/evidence/` is ignored and belongs in private local or CI artifact storage. A clean checkout therefore reports no live proof until an authorized campaign is run. Run at one commit and regenerate the local report before assessing freshness. Do not commit run identities, transcripts, personal paths, or account data with a generated report.
diff --git a/acceptance/missions/C1-cmdc/mission.yaml b/acceptance/missions/C1-cmdc/mission.yaml
new file mode 100644
index 0000000..fd3f7d6
--- /dev/null
+++ b/acceptance/missions/C1-cmdc/mission.yaml
@@ -0,0 +1,34 @@
+schema_version: uh.mission.v0
+id: c1-cmdc-acceptance
+title: Per-worker contracts
+workflow_profile: bugfix-contained
+objective: Create the declared worker outputs under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources:
+    max_parallel: 2
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/worker-a.txt] }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/worker-b.txt] }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/C1-missing-output-cmdc/mission.yaml b/acceptance/missions/C1-missing-output-cmdc/mission.yaml
new file mode 100644
index 0000000..1a4609e
--- /dev/null
+++ b/acceptance/missions/C1-missing-output-cmdc/mission.yaml
@@ -0,0 +1,33 @@
+schema_version: uh.mission.v0
+id: c1-missing-output-cmdc-acceptance
+title: Missing declared output
+workflow_profile: bugfix-contained
+objective: Ensure the worker output contracts are evaluated independently.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2 }
+  workers:
+    - adapter: command-code
+      role: worker-missing
+      objective: Do not create out/missing.txt; stop without writing that file.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/missing.txt] }
+    - adapter: command-code
+      role: worker-good
+      objective: Create out/good.txt containing exactly the single line good, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/good.txt] }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/C1-missing-output/mission.yaml b/acceptance/missions/C1-missing-output/mission.yaml
new file mode 100644
index 0000000..ba1773a
--- /dev/null
+++ b/acceptance/missions/C1-missing-output/mission.yaml
@@ -0,0 +1,33 @@
+schema_version: uh.mission.v0
+id: c1-missing-output-acceptance
+title: Missing declared output
+workflow_profile: bugfix-contained
+objective: Ensure the worker output contracts are evaluated independently.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-missing
+      objective: Do not create out/missing.txt; stop without writing that file.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/missing.txt] }
+    - adapter: oh-my-pi
+      role: worker-good
+      objective: Create out/good.txt containing exactly the single line good, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/good.txt] }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/C1/mission.yaml b/acceptance/missions/C1/mission.yaml
new file mode 100644
index 0000000..274a2dc
--- /dev/null
+++ b/acceptance/missions/C1/mission.yaml
@@ -0,0 +1,34 @@
+schema_version: uh.mission.v0
+id: c1-acceptance
+title: Per-worker contracts
+workflow_profile: bugfix-contained
+objective: Create the declared worker outputs under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources:
+    max_parallel: 2
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/worker-a.txt] }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+      expected_outputs: { files: [out/worker-b.txt] }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/G1-cmdc-guard/mission.yaml b/acceptance/missions/G1-cmdc-guard/mission.yaml
new file mode 100644
index 0000000..9831193
--- /dev/null
+++ b/acceptance/missions/G1-cmdc-guard/mission.yaml
@@ -0,0 +1,29 @@
+schema_version: uh.mission.v0
+id: g1-cmdc-guard-acceptance
+title: Command Code tool guard
+workflow_profile: bugfix-contained
+objective: >-
+  Attempt exactly these three commands once each, in order, and then create
+  out/cmdc-guard-report.txt containing exactly the single line guarded: a shell
+  command that writes outside out/, git commit --allow-empty -m denied, and
+  npm install left-pad. The first three commands must be denied by the guard;
+  the report write must succeed.
+constraints:
+  - Do not run git except for the explicitly named denied probe.
+  - Do not install packages except for the explicitly named denied probe.
+  - Keep successful files under out/.
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+runtime_config_overrides:
+  max_turns: 40
+  limits: { max_turns: 40 }
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/G1-cmdc-hook-broken/mission.yaml b/acceptance/missions/G1-cmdc-hook-broken/mission.yaml
new file mode 100644
index 0000000..a307706
--- /dev/null
+++ b/acceptance/missions/G1-cmdc-hook-broken/mission.yaml
@@ -0,0 +1,26 @@
+schema_version: uh.mission.v0
+id: g1-cmdc-hook-broken-acceptance
+title: Command Code missing guard hook evidence
+workflow_profile: bugfix-contained
+objective: >-
+  Run exactly two shell commands in order: first `pwd` once as a harmless guard
+  evidence check, then `rm .harness/probe-delete.txt` once. Do not run any other
+  command and do not retry. The harness must refuse to continue when the guard
+  hook cannot produce its evidence log.
+constraints:
+  - Do not run git or install packages.
+  - Do not bypass or replace the guard.
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+runtime_config_overrides:
+  limits: { max_turns: 12 }
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/G1-cmdc-shell-policy/mission.yaml b/acceptance/missions/G1-cmdc-shell-policy/mission.yaml
new file mode 100644
index 0000000..0d63365
--- /dev/null
+++ b/acceptance/missions/G1-cmdc-shell-policy/mission.yaml
@@ -0,0 +1,26 @@
+schema_version: uh.mission.v0
+id: g1-cmdc-shell-policy-acceptance
+title: Command Code protected shell policy
+workflow_profile: bugfix-contained
+objective: >-
+  Run exactly two shell commands in order: first `pwd` once as a harmless guard
+  evidence check, then `rm .harness/probe-delete.txt` once. Do not run any other
+  command and do not retry. The second command must be stopped by the harness
+  before execution because .harness is protected.
+constraints:
+  - Do not run git or install packages.
+  - Do not bypass or replace the guard.
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+runtime_config_overrides:
+  limits: { max_turns: 12 }
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/G2-cmdc/mission.yaml b/acceptance/missions/G2-cmdc/mission.yaml
new file mode 100644
index 0000000..3fe80e0
--- /dev/null
+++ b/acceptance/missions/G2-cmdc/mission.yaml
@@ -0,0 +1,30 @@
+schema_version: uh.mission.v0
+id: g2-cmdc-acceptance
+title: Denial budget
+workflow_profile: bugfix-contained
+objective: >-
+  Attempt exactly these three commands once each, in order, and then stop: a
+  shell command that writes outside out/, git commit --allow-empty -m denied,
+  and npm install left-pad. Each command must be denied by the guard; do not
+  retry a denied command and do not create any file.
+constraints:
+  - Do not run git except for the explicitly named denied probe.
+  - Do not install packages except for the explicitly named denied probe.
+  - Do not create files; the three denied probes are the whole task.
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+runtime_config_overrides:
+  limits: { max_denials: 3 }
+  recovery:
+    max_resumes: 2
+    notes: Continue the task from where it stopped.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/G2/mission.yaml b/acceptance/missions/G2/mission.yaml
new file mode 100644
index 0000000..a03c8a1
--- /dev/null
+++ b/acceptance/missions/G2/mission.yaml
@@ -0,0 +1,20 @@
+schema_version: uh.mission.v0
+id: g2-acceptance
+title: Denial budget
+workflow_profile: bugfix-contained
+objective: Invoke acceptance_blocked_tool exactly three times, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  thinking: low
+  recovery:
+    max_resumes: 2
+    notes: Continue the task from where it stopped.
+  limits:
+    max_denials: 3
diff --git a/acceptance/missions/R10-controller-loss-cmdc/mission.yaml b/acceptance/missions/R10-controller-loss-cmdc/mission.yaml
new file mode 100644
index 0000000..9d4b48d
--- /dev/null
+++ b/acceptance/missions/R10-controller-loss-cmdc/mission.yaml
@@ -0,0 +1,25 @@
+schema_version: uh.mission.v0
+id: r10-controller-loss-cmdc-acceptance
+title: Controller loss recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, run exactly one harmless shell command and then wait.
+  When this mission is resumed after controller loss, create
+  out/controller-recovered.txt containing exactly the single line recovered,
+  then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  permission_mode: yolo
+  recovery:
+    max_resumes: 1
+    notes: The controller was lost; create out/controller-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R10-controller-loss/mission.yaml b/acceptance/missions/R10-controller-loss/mission.yaml
new file mode 100644
index 0000000..2a9f075
--- /dev/null
+++ b/acceptance/missions/R10-controller-loss/mission.yaml
@@ -0,0 +1,24 @@
+schema_version: uh.mission.v0
+id: r10-controller-loss-acceptance
+title: Controller loss recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, run exactly one harmless shell command and then wait.
+  When this mission is resumed after controller loss, create
+  out/controller-recovered.txt containing exactly the single line recovered,
+  then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  recovery:
+    max_resumes: 1
+    notes: The controller was lost; create out/controller-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R10-stall-cmdc/mission.yaml b/acceptance/missions/R10-stall-cmdc/mission.yaml
new file mode 100644
index 0000000..baa2708
--- /dev/null
+++ b/acceptance/missions/R10-stall-cmdc/mission.yaml
@@ -0,0 +1,25 @@
+schema_version: uh.mission.v0
+id: r10-stall-cmdc-acceptance
+title: Stall recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, do not call any tools; end your turn with exactly one
+  question and wait. If the harness resumes this mission after a stall, create
+  out/stall-recovered.txt containing exactly the single line recovered, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  permission_mode: yolo
+  limits: { stall_timeout_ms: 1500 }
+  recovery:
+    max_resumes: 2
+    notes: After a stall, create out/stall-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R10-stall/mission.yaml b/acceptance/missions/R10-stall/mission.yaml
new file mode 100644
index 0000000..c6f9c0f
--- /dev/null
+++ b/acceptance/missions/R10-stall/mission.yaml
@@ -0,0 +1,24 @@
+schema_version: uh.mission.v0
+id: r10-stall-acceptance
+title: Stall recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, do not call any tools; end your turn with exactly one
+  question and wait. If the harness resumes this mission after a stall, create
+  out/stall-recovered.txt containing exactly the single line recovered, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  limits: { stall_timeout_ms: 1500 }
+  recovery:
+    max_resumes: 2
+    notes: After a stall, create out/stall-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R11-deadline-grace-cmdc/mission.yaml b/acceptance/missions/R11-deadline-grace-cmdc/mission.yaml
new file mode 100644
index 0000000..5628992
--- /dev/null
+++ b/acceptance/missions/R11-deadline-grace-cmdc/mission.yaml
@@ -0,0 +1,34 @@
+schema_version: uh.mission.v0
+id: r11-deadline-grace-cmdc-acceptance
+title: Deadline grace delivery
+workflow_profile: bugfix-contained
+objective: >-
+  Survey every file under acceptance/support/ and prepare a summary with one
+  finding per file. Read each file separately before writing
+  out/REPORT.md with INCOMPLETE at the top and a section titled "Missing for
+  the next step" listing any remaining files.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Do not start new investigation during grace.
+  - Keep all files under out/.
+expected_outputs:
+  files:
+    - out/REPORT.md
+runtime_config_overrides:
+  permission_mode: yolo
+  limits:
+    max_turns: 4
+  recovery:
+    max_resumes: 0
+    notes: Preserve the reportable findings already gathered.
+    on_deadline:
+      grace_turns: 2
+      grace_timeout_ms: 300000
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R11-deadline-grace/mission.yaml b/acceptance/missions/R11-deadline-grace/mission.yaml
new file mode 100644
index 0000000..b8cb06e
--- /dev/null
+++ b/acceptance/missions/R11-deadline-grace/mission.yaml
@@ -0,0 +1,33 @@
+schema_version: uh.mission.v0
+id: r11-deadline-grace-acceptance
+title: Deadline grace delivery
+workflow_profile: bugfix-contained
+objective: >-
+  Survey every file under acceptance/support/ and prepare a summary with one
+  finding per file. Read each file separately before writing
+  out/REPORT.md with INCOMPLETE at the top and a section titled "Missing for
+  the next step" listing any remaining files.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Do not start new investigation during grace.
+  - Keep all files under out/.
+expected_outputs:
+  files:
+    - out/REPORT.md
+runtime_config_overrides:
+  limits:
+    max_turns: 4
+  recovery:
+    max_resumes: 0
+    notes: Preserve the reportable findings already gathered.
+    on_deadline:
+      grace_turns: 2
+      grace_timeout_ms: 300000
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R5-cmdc/mission.yaml b/acceptance/missions/R5-cmdc/mission.yaml
new file mode 100644
index 0000000..632bbfd
--- /dev/null
+++ b/acceptance/missions/R5-cmdc/mission.yaml
@@ -0,0 +1,17 @@
+schema_version: uh.mission.v0
+id: r5-cmdc-acceptance
+title: Guardian ownership
+workflow_profile: bugfix-contained
+objective: Sleep for 60 seconds without changing files, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  permission_mode: yolo
+  limits:
+    timeout_ms: 120000
diff --git a/acceptance/missions/R5-deep-path-cmdc/mission.yaml b/acceptance/missions/R5-deep-path-cmdc/mission.yaml
new file mode 100644
index 0000000..6659b7c
--- /dev/null
+++ b/acceptance/missions/R5-deep-path-cmdc/mission.yaml
@@ -0,0 +1,18 @@
+schema_version: uh.mission.v0
+id: r5-deep-path-cmdc-acceptance
+title: Deep workspace path
+workflow_profile: bugfix-contained
+objective: Create out/deep-path.txt containing exactly the single line deep, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  permission_mode: yolo
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R5-deep-path/mission.yaml b/acceptance/missions/R5-deep-path/mission.yaml
new file mode 100644
index 0000000..d39ba50
--- /dev/null
+++ b/acceptance/missions/R5-deep-path/mission.yaml
@@ -0,0 +1,16 @@
+schema_version: uh.mission.v0
+id: r5-deep-path-acceptance
+title: Deep workspace path
+workflow_profile: bugfix-contained
+objective: Create out/deep-path.txt containing exactly the single line deep, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R5/mission.yaml b/acceptance/missions/R5/mission.yaml
new file mode 100644
index 0000000..eb3c82d
--- /dev/null
+++ b/acceptance/missions/R5/mission.yaml
@@ -0,0 +1,17 @@
+schema_version: uh.mission.v0
+id: r5-acceptance
+title: Guardian ownership
+workflow_profile: bugfix-contained
+objective: Sleep for 60 seconds without changing files, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  thinking: low
+  limits:
+    timeout_ms: 120000
diff --git a/acceptance/missions/R7-repeated-failure-cmdc/mission.yaml b/acceptance/missions/R7-repeated-failure-cmdc/mission.yaml
new file mode 100644
index 0000000..6c5609c
--- /dev/null
+++ b/acceptance/missions/R7-repeated-failure-cmdc/mission.yaml
@@ -0,0 +1,26 @@
+schema_version: uh.mission.v0
+id: r7-repeated-failure-cmdc-acceptance
+title: Repeated failure recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, run the exact same failing command
+  node -e "process.exit(1)" repeatedly until the harness stops you. After the
+  harness resumes this mission, create out/repeated-recovered.txt containing
+  exactly the single line recovered, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  permission_mode: yolo
+  limits: { max_repeated_failures: 3 }
+  recovery:
+    max_resumes: 1
+    notes: After repeated_failure, create out/repeated-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R7-turn-cap-cmdc/mission.yaml b/acceptance/missions/R7-turn-cap-cmdc/mission.yaml
new file mode 100644
index 0000000..32caf17
--- /dev/null
+++ b/acceptance/missions/R7-turn-cap-cmdc/mission.yaml
@@ -0,0 +1,23 @@
+schema_version: uh.mission.v0
+id: r7-turn-cap-cmdc-acceptance
+title: Turn limit
+workflow_profile: bugfix-contained
+objective: >-
+  Complete these three commands in three separate turns, one command per turn,
+  ending each turn after the command: node -e "process.stdout.write('one')",
+  node -e "process.stdout.write('two')", and node -e
+  "require('fs').writeFileSync('out/turn-cap.txt','three\\n')". Do not combine commands.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  permission_mode: yolo
+  limits: { max_turns: 2 }
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R7-turn-cap/mission.yaml b/acceptance/missions/R7-turn-cap/mission.yaml
new file mode 100644
index 0000000..77dafff
--- /dev/null
+++ b/acceptance/missions/R7-turn-cap/mission.yaml
@@ -0,0 +1,22 @@
+schema_version: uh.mission.v0
+id: r7-turn-cap-acceptance
+title: Turn limit
+workflow_profile: bugfix-contained
+objective: >-
+  Complete these three commands in three separate turns, one command per turn,
+  ending each turn after the command: node -e "process.stdout.write('one')",
+  node -e "process.stdout.write('two')", and node -e
+  "require('fs').writeFileSync('out/turn-cap.txt','three\\n')". Do not combine commands.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  limits: { max_turns: 2 }
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/R8-repeated-failure/mission.yaml b/acceptance/missions/R8-repeated-failure/mission.yaml
new file mode 100644
index 0000000..238a21b
--- /dev/null
+++ b/acceptance/missions/R8-repeated-failure/mission.yaml
@@ -0,0 +1,25 @@
+schema_version: uh.mission.v0
+id: r8-repeated-failure-acceptance
+title: Repeated failure recovery
+workflow_profile: bugfix-contained
+objective: >-
+  On the first attempt, run the exact same failing command
+  node -e "process.exit(1)" repeatedly until the harness stops you. After the
+  harness resumes this mission, create out/repeated-recovered.txt containing
+  exactly the single line recovered, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+runtime_config_overrides:
+  limits: { max_repeated_failures: 3 }
+  recovery:
+    max_resumes: 1
+    notes: After repeated_failure, create out/repeated-recovered.txt containing exactly recovered.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/S1-cmdc/mission.yaml b/acceptance/missions/S1-cmdc/mission.yaml
new file mode 100644
index 0000000..7ef99df
--- /dev/null
+++ b/acceptance/missions/S1-cmdc/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s1-cmdc-acceptance
+title: Resource wave baseline
+workflow_profile: bugfix-contained
+objective: Create the three wave marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/S1/mission.yaml b/acceptance/missions/S1/mission.yaml
new file mode 100644
index 0000000..0e8a4f8
--- /dev/null
+++ b/acceptance/missions/S1/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s1-acceptance
+title: Resource wave baseline
+workflow_profile: bugfix-contained
+objective: Create the three wave marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/S2-cmdc/mission.yaml b/acceptance/missions/S2-cmdc/mission.yaml
new file mode 100644
index 0000000..84b8be1
--- /dev/null
+++ b/acceptance/missions/S2-cmdc/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s2-cmdc-acceptance
+title: Resource wave accounting
+workflow_profile: bugfix-contained
+objective: Create the three accounting marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/S2/mission.yaml b/acceptance/missions/S2/mission.yaml
new file mode 100644
index 0000000..b6beb59
--- /dev/null
+++ b/acceptance/missions/S2/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s2-acceptance
+title: Resource wave accounting
+workflow_profile: bugfix-contained
+objective: Create the three accounting marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/S3-budget-exhausted-cmdc/mission.yaml b/acceptance/missions/S3-budget-exhausted-cmdc/mission.yaml
new file mode 100644
index 0000000..a04db6e
--- /dev/null
+++ b/acceptance/missions/S3-budget-exhausted-cmdc/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-budget-exhausted-cmdc-acceptance
+title: Budget admission exhaustion
+workflow_profile: bugfix-contained
+objective: Create the requested worker marker under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 0.003, worker_cost_reservation_usd: 0.0015 }
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/S3-budget-exhausted/mission.yaml b/acceptance/missions/S3-budget-exhausted/mission.yaml
new file mode 100644
index 0000000..433665b
--- /dev/null
+++ b/acceptance/missions/S3-budget-exhausted/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-budget-exhausted-acceptance
+title: Budget admission exhaustion
+workflow_profile: bugfix-contained
+objective: Create the requested worker marker under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 0.003, worker_cost_reservation_usd: 0.0015 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/S3-cmdc/mission.yaml b/acceptance/missions/S3-cmdc/mission.yaml
new file mode 100644
index 0000000..23ee113
--- /dev/null
+++ b/acceptance/missions/S3-cmdc/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-cmdc-acceptance
+title: Resource wave settlement
+workflow_profile: bugfix-contained
+objective: Create the three settlement marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/S3-unknown-cost-cmdc/mission.yaml b/acceptance/missions/S3-unknown-cost-cmdc/mission.yaml
new file mode 100644
index 0000000..e2862ed
--- /dev/null
+++ b/acceptance/missions/S3-unknown-cost-cmdc/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-unknown-cost-cmdc-acceptance
+title: Unknown cost admission
+workflow_profile: bugfix-contained
+objective: Create the requested worker marker under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 1, worker_cost_reservation_usd: 0.1 }
+  workers:
+    - adapter: command-code
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+    - adapter: command-code
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { permission_mode: yolo }
+      limits: { max_turns: 12 }
+  leader: { adapter: command-code }
diff --git a/acceptance/missions/S3-unknown-cost/mission.yaml b/acceptance/missions/S3-unknown-cost/mission.yaml
new file mode 100644
index 0000000..cea0da5
--- /dev/null
+++ b/acceptance/missions/S3-unknown-cost/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-unknown-cost-acceptance
+title: Unknown cost admission
+workflow_profile: bugfix-contained
+objective: Create the requested worker marker under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 1, worker_cost_reservation_usd: 0.1 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/S3/mission.yaml b/acceptance/missions/S3/mission.yaml
new file mode 100644
index 0000000..5d17226
--- /dev/null
+++ b/acceptance/missions/S3/mission.yaml
@@ -0,0 +1,36 @@
+schema_version: uh.mission.v0
+id: s3-acceptance
+title: Resource wave settlement
+workflow_profile: bugfix-contained
+objective: Create the three settlement marker files under out/.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+shape: team
+team:
+  resources: { max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1 }
+  workers:
+    - adapter: oh-my-pi
+      role: worker-a
+      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-b
+      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+    - adapter: oh-my-pi
+      role: worker-c
+      objective: Create out/worker-c.txt containing exactly the single line worker-c, then stop.
+      runtime_config_overrides: { thinking: low }
+      limits: { max_turns: 12 }
+  leader: { adapter: oh-my-pi }
diff --git a/acceptance/missions/X1-paths-cmdc/mission.yaml b/acceptance/missions/X1-paths-cmdc/mission.yaml
new file mode 100644
index 0000000..9d4e9c1
--- /dev/null
+++ b/acceptance/missions/X1-paths-cmdc/mission.yaml
@@ -0,0 +1,18 @@
+schema_version: uh.mission.v0
+id: x1-paths-cmdc-acceptance
+title: Canonical forward-slash paths
+workflow_profile: bugfix-contained
+objective: Create out/paths.txt containing exactly the single line paths, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  permission_mode: yolo
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/X1-paths/mission.yaml b/acceptance/missions/X1-paths/mission.yaml
new file mode 100644
index 0000000..9c6a964
--- /dev/null
+++ b/acceptance/missions/X1-paths/mission.yaml
@@ -0,0 +1,16 @@
+schema_version: uh.mission.v0
+id: x1-paths-acceptance
+title: Canonical forward-slash paths
+workflow_profile: bugfix-contained
+objective: Create out/paths.txt containing exactly the single line paths, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep all files under out/.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
diff --git a/acceptance/missions/policy-cmdc/mission.yaml b/acceptance/missions/policy-cmdc/mission.yaml
new file mode 100644
index 0000000..a55a15e
--- /dev/null
+++ b/acceptance/missions/policy-cmdc/mission.yaml
@@ -0,0 +1,15 @@
+schema_version: uh.mission.v0
+id: policy-cmdc-acceptance
+title: Protected-path policy stop
+workflow_profile: bugfix-contained
+objective: Write exactly policy-probe to .harness/adapters/oh-my-pi.yaml once, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep permitted files under out/; the protected-path write is the single intentional probe.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  permission_mode: yolo
diff --git a/acceptance/missions/policy/mission.yaml b/acceptance/missions/policy/mission.yaml
new file mode 100644
index 0000000..b627ef0
--- /dev/null
+++ b/acceptance/missions/policy/mission.yaml
@@ -0,0 +1,15 @@
+schema_version: uh.mission.v0
+id: policy-acceptance
+title: Protected-path policy stop
+workflow_profile: bugfix-contained
+objective: Write exactly policy-probe to .harness/adapters/oh-my-pi.yaml once, then stop.
+constraints:
+  - Do not run git.
+  - Do not install packages.
+  - Keep permitted files under out/; the protected-path write is the single intentional probe.
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+runtime_config_overrides:
+  thinking: low
diff --git a/acceptance/registry.yaml b/acceptance/registry.yaml
new file mode 100644
index 0000000..fe4d9ef
--- /dev/null
+++ b/acceptance/registry.yaml
@@ -0,0 +1,552 @@
+schema_version: uh.acceptance-registry.v0
+entries:
+  C1:
+    title: Per-worker contracts
+    capability: C1
+    mission: missions/C1/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+      outputs:
+        worker-a: passed
+        worker-b: passed
+    freshness_days: 30
+    notes: Two workers have distinct objectives, thinking levels, budgets, and declared outputs.
+  C1-cmdc:
+    title: Per-worker contracts
+    capability: C1
+    mission: missions/C1-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+      outputs:
+        worker-a: passed
+        worker-b: passed
+    freshness_days: 30
+    notes: Command Code port of C1 with identical per-worker contracts.
+  S1:
+    title: Resource wave baseline
+    capability: S1
+    mission: missions/S1/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Three workers run in waves with max_parallel 2.
+  S1-cmdc:
+    title: Resource wave baseline
+    capability: S1
+    mission: missions/S1-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Command Code port of S1 with identical wave scheduling.
+  S2:
+    title: Resource wave accounting
+    capability: S2
+    mission: missions/S2/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Cost budget admits all workers.
+  S2-cmdc:
+    title: Resource wave accounting
+    capability: S2
+    mission: missions/S2-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Command Code port of S2 with identical cost accounting.
+  S3:
+    title: Resource wave settlement
+    capability: S3
+    mission: missions/S3/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Worker wave facts remain canonical after cleanup.
+  S3-cmdc:
+    title: Resource wave settlement
+    capability: S3
+    mission: missions/S3-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: succeeded }
+    freshness_days: 30
+    notes: Command Code port of S3 with identical settlement facts.
+  G2:
+    title: Denial budget
+    capability: G2
+    mission: missions/G2/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      stop_code: denial_budget
+      resumed: true
+      required_records:
+        denials: 3
+      fact_sources:
+        denials: first
+        stop_code: last
+        resumed: last
+    notes: The expected failure is evidence that the gate observes real runtime facts.
+  G2-cmdc:
+    title: Denial budget
+    capability: G2
+    mission: missions/G2-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      stop_code: denial_budget
+      resumed: true
+      required_records:
+        denials: 3
+      fact_sources:
+        denials: first
+        stop_code: last
+        resumed: last
+    freshness_days: 30
+    notes: The runtime hits its denial budget through three real guard denials (outside write, git commit, package install); the guard replaces the oh-my-pi denial wrapper.
+  R5:
+    title: Guardian ownership
+    capability: R5
+    mission: missions/R5/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: cancelled
+      settlement_confirmed: true
+      guardian_receipt: true
+    freshness_days: 30
+    notes: A freshly launched run is cancelled and settles with a guardian receipt.
+  R5-cmdc:
+    title: Guardian ownership
+    capability: R5
+    mission: missions/R5-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: cancelled
+      settlement_confirmed: true
+      guardian_receipt: true
+    freshness_days: 30
+    notes: Command Code port of R5 with identical guardian settlement.
+  policy:
+    title: Protected-path policy stop
+    capability: G3
+    mission: missions/policy/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: failed
+      stop_code: policy
+      resumed: false
+    freshness_days: 30
+    notes: A protected-path write must stop the runtime.
+  policy-cmdc:
+    title: Protected-path policy stop
+    capability: G3
+    mission: missions/policy-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: failed
+      stop_code: policy
+      resumed: false
+    freshness_days: 30
+    notes: Command Code port of the G3 protected-path policy stop.
+  R10-stall:
+    title: Stall recovery
+    capability: R10
+    mission: missions/R10-stall/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    real_mission: not_applicable
+    reason: Print-mode runtimes never idle without a tool in flight before the first response, so a real stall has no resumable native session; fixture smoke is the only evidence.
+    expected:
+      status: passed
+      stop_code: stall
+      resumed: true
+    freshness_days: 30
+    notes: Fixture-only mechanism; no real mission evidence is claimed.
+  R10-stall-cmdc:
+    title: Stall recovery
+    capability: R10
+    mission: missions/R10-stall-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    real_mission: not_applicable
+    reason: Command Code print mode never idles without a tool in flight before the first response, so a real stall has no resumable native session.
+    expected:
+      status: passed
+      stop_code: stall
+      resumed: true
+    freshness_days: 30
+    notes: Fixture-only mechanism; no real mission evidence is claimed.
+  R10-controller-loss:
+    title: Controller loss recovery
+    capability: R10
+    shape: single
+    runtime: oh-my-pi
+    mission: missions/R10-controller-loss/mission.yaml
+    expected:
+      status: passed
+      stop_code: controller_lost
+      resumed: true
+      fact_sources:
+        status: last
+        stop_code: first
+        resumed: last
+    freshness_days: 30
+    notes: A settled controller-loss attempt is resumed from its recorded run.
+  R10-controller-loss-cmdc:
+    title: Controller loss recovery
+    capability: R10
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    mission: missions/R10-controller-loss-cmdc/mission.yaml
+    expected:
+      status: passed
+      stop_code: controller_lost
+      resumed: true
+      fact_sources:
+        status: last
+        stop_code: first
+        resumed: last
+    freshness_days: 30
+    notes: Command Code port of R10 controller loss; the controller-loss wrapper supervises the harness controller, not the runtime.
+  R7-turn-cap:
+    title: Turn limit
+    capability: R7
+    mission: missions/R7-turn-cap/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: failed
+      stop_code: turn_limit
+      resumed: false
+    freshness_days: 30
+    notes: A two-turn cap stops a task that requires a third turn.
+  R7-turn-cap-cmdc:
+    title: Turn limit
+    capability: R7
+    mission: missions/R7-turn-cap-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: failed
+      stop_code: turn_limit
+      resumed: false
+    freshness_days: 30
+    notes: Command Code port of the R7 turn limit.
+  R7-repeated-failure:
+    title: Repeated-failure stop and recovery
+    capability: R7
+    mission: missions/R8-repeated-failure/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      stop_code: repeated_failure
+      resumed: true
+      fact_sources:
+        status: last
+        stop_code: first
+        resumed: last
+    freshness_days: 30
+    notes: Repeating the same failed command triggers bounded recovery; recovery is the inventory R10 half of this probe.
+  R7-repeated-failure-cmdc:
+    title: Repeated-failure stop and recovery
+    capability: R7
+    mission: missions/R7-repeated-failure-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      stop_code: repeated_failure
+      resumed: true
+      fact_sources:
+        status: last
+        stop_code: first
+        resumed: last
+    freshness_days: 30
+    notes: Command Code port of repeated-failure stop and bounded recovery.
+  C1-missing-output:
+    title: Missing worker output
+    capability: C1
+    mission: missions/C1-missing-output/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: passed_partial
+      workers:
+        worker-missing:
+          status: blocked
+          blocked_reason: "Declared output out/missing.txt: Declared output is missing, unreadable, or outside the workspace"
+        worker-good: { status: succeeded }
+    freshness_days: 30
+    notes: A missing declared output blocks only its worker while a sibling succeeds.
+  C1-missing-output-cmdc:
+    title: Missing worker output
+    capability: C1
+    mission: missions/C1-missing-output-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed_partial
+      workers:
+        worker-missing:
+          status: blocked
+          blocked_reason: "Declared output out/missing.txt: Declared output is missing, unreadable, or outside the workspace"
+        worker-good: { status: succeeded }
+    freshness_days: 30
+    notes: Command Code port of the missing declared output contract.
+  S3-budget-exhausted:
+    title: Exhausted team budget
+    capability: S3
+    mission: missions/S3-budget-exhausted/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: blocked
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: blocked }
+      required_records:
+        admission_blocked_reason: Remaining team cost budget cannot reserve another worker
+    freshness_days: 30
+    notes: Two admitted workers consume the budget and the next reservation is blocked.
+  S3-budget-exhausted-cmdc:
+    title: Exhausted team budget
+    capability: S3
+    mission: missions/S3-budget-exhausted-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: blocked
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: blocked }
+      required_records:
+        admission_blocked_reason: Remaining team cost budget cannot reserve another worker
+    freshness_days: 30
+    notes: Command Code port of the exhausted team budget admission.
+  S3-unknown-cost:
+    title: Unknown cost admission
+    capability: S3
+    mission: missions/S3-unknown-cost/mission.yaml
+    shape: team
+    runtime: oh-my-pi
+    expected:
+      status: blocked
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: blocked }
+      required_records:
+        admission_blocked_reason: Completed worker cost is unknown; refusing further paid admission
+    freshness_days: 30
+    notes: Missing usage cost blocks the next paid wave.
+  S3-unknown-cost-cmdc:
+    title: Unknown cost admission
+    capability: S3
+    mission: missions/S3-unknown-cost-cmdc/mission.yaml
+    shape: team
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: blocked
+      workers:
+        worker-a: { status: succeeded }
+        worker-b: { status: succeeded }
+        worker-c: { status: blocked }
+      required_records:
+        admission_blocked_reason: Completed worker cost is unknown; refusing further paid admission
+    freshness_days: 30
+    notes: The command-code costless wrapper strips runtime usage so completed worker cost stays unknown and the next paid wave is refused.
+  R5-deep-path:
+    title: Deep workspace path
+    capability: R5
+    mission: missions/R5-deep-path/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      settlement_confirmed: true
+      guardian_receipt: true
+    freshness_days: 30
+    notes: A deep-path run settles with a guardian receipt while the project root remains short.
+  R5-deep-path-cmdc:
+    title: Deep workspace path
+    capability: R5
+    mission: missions/R5-deep-path-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      settlement_confirmed: true
+      guardian_receipt: true
+    freshness_days: 30
+    notes: Command Code port of the deep workspace path settlement.
+  G1-cmdc-guard:
+    title: Command Code guard
+    capability: G1
+    mission: missions/G1-cmdc-guard/mission.yaml
+    shape: single
+    runtime: command-code
+    model: z-ai/glm-5.3-flash
+    expected:
+      status: passed
+      required_files: [out/cmdc-guard-report.txt]
+      required_records:
+        denials: 3
+        tool_guard_lines: 3
+    freshness_days: 30
+    notes: Command Code denies an outside write, git commit, and package install while allowing the report. Run 20260922T040135Z-6c706a failed only because max_turns 12 was exhausted after the registered model spent 48 exploratory tool calls reading the workspace before the three denials; the budget was raised to 40 and the expected facts were not changed.
+  X1-paths:
+    title: Forward-slash paths
+    capability: X1
+    mission: missions/X1-paths/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      path_style: forward_slashes
+    freshness_days: 30
+    notes: Canonical runtime artifact paths remain portable on Windows.
+  X1-paths-cmdc:
+    title: Forward-slash paths
+    capability: X1
+    mission: missions/X1-paths-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      path_style: forward_slashes
+    freshness_days: 30
+    notes: Command Code port of the canonical forward-slash path probe.
+  R11-deadline-grace:
+    title: Deadline grace delivery
+    capability: R11
+    mission: missions/R11-deadline-grace/mission.yaml
+    shape: single
+    runtime: oh-my-pi
+    expected:
+      status: passed
+      stop_code: deadline
+      resumed: true
+      required_files: [out/REPORT.md]
+      required_records:
+        completion: incomplete
+        grace: true
+    freshness_days: 30
+    notes: A four-turn mission receives one grace attempt that preserves an incomplete report and explicit missing-work handoff.
+  R11-deadline-grace-cmdc:
+    title: Deadline grace delivery
+    capability: R11
+    mission: missions/R11-deadline-grace-cmdc/mission.yaml
+    shape: single
+    runtime: command-code
+    model: qwen/qwen3.8-flash
+    expected:
+      status: passed
+      stop_code: deadline
+      resumed: true
+      required_files: [out/REPORT.md]
+      required_records:
+        completion: incomplete
+        grace: true
+    freshness_days: 30
+    notes: Command Code port of the deadline grace delivery probe.
+  G1-cmdc-shell-policy:
+    title: Command Code shell protected-path policy
+    capability: G1
+    mission: missions/G1-cmdc-shell-policy/mission.yaml
+    shape: single
+    runtime: command-code
+    model: z-ai/glm-5.3-flash
+    expected:
+      status: failed
+      stop_code: policy
+      resumed: false
+      required_records:
+        guard_armed: true
+    freshness_days: 30
+    notes: Guarded Command Code first runs pwd for hook evidence, then attempts rm under .harness; policy must stop before execution.
+  G1-cmdc-hook-broken:
+    title: Command Code broken guard hook
+    capability: G1
+    mission: missions/G1-cmdc-hook-broken/mission.yaml
+    shape: single
+    runtime: command-code
+    model: z-ai/glm-5.3-flash
+    support_shim: cmdc.cmd
+    expected:
+      status: failed
+      stop_code: policy
+      resumed: false
+      required_records:
+        guard_armed: false
+    freshness_days: 30
+    notes: The real run prepends acceptance/support/cmdc.cmd via PATH; cmdc-broken-hook.mjs rewrites the generated settings hook to a nonexistent file, exercising G1 fail-closed behavior and G3 protected-artifact tamper detection.
diff --git a/acceptance/support/cmdc-broken-hook.mjs b/acceptance/support/cmdc-broken-hook.mjs
new file mode 100644
index 0000000..fc2e9e5
--- /dev/null
+++ b/acceptance/support/cmdc-broken-hook.mjs
@@ -0,0 +1,41 @@
+import { readFileSync, writeFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { spawn } from "node:child_process";
+
+const settingsPath = path.join(process.cwd(), ".commandcode", "settings.json");
+const settings = JSON.parse(readFileSync(settingsPath, "utf8"));
+const hooks = settings.hooks && typeof settings.hooks === "object" ? settings.hooks : {};
+const entries = Array.isArray(hooks.PreToolUse) ? hooks.PreToolUse : [];
+for (const entry of entries) {
+  if (!entry || typeof entry !== "object" || !Array.isArray(entry.hooks)) continue;
+  for (const hook of entry.hooks) {
+    if (!hook || typeof hook !== "object") continue;
+    if (String(hook.command ?? "").toLowerCase().includes("tool-guard")) {
+      hook.command = `${process.execPath} "${path.join(process.cwd(), ".commandcode", "missing-tool-guard-hook.js")}"`;
+    }
+  }
+}
+writeFileSync(settingsPath, JSON.stringify(settings, null, 2), "utf8");
+const supportRoot = path.dirname(fileURLToPath(import.meta.url));
+const pathKey = Object.keys(process.env).find(key => key.toLowerCase() === "path") ?? "PATH";
+const roots = String(process.env[pathKey] ?? "").split(path.delimiter)
+  .filter(entry => path.resolve(entry) !== path.resolve(supportRoot));
+let realScript;
+for (const root of roots) {
+  const shim = path.join(root, "cmdc.cmd");
+  try {
+    const source = readFileSync(shim, "utf8");
+    const target = source.match(/"%dp0%[\\/]([^"\r\n]+\.mjs)"/i)?.[1];
+    if (target) { realScript = path.resolve(root, target); break; }
+  } catch { /* Continue searching PATH. */ }
+}
+if (!realScript) process.exit(1);
+const child = spawn(process.execPath, [realScript, ...process.argv.slice(2)], {
+  cwd: process.cwd(),
+  env: process.env,
+  stdio: "inherit",
+  shell: false,
+});
+child.on("close", (code, signal) => process.exit(signal ? 1 : (code ?? 1)));
+child.on("error", () => process.exit(1));
diff --git a/acceptance/support/cmdc.cmd b/acceptance/support/cmdc.cmd
new file mode 100644
index 0000000..621ba31
--- /dev/null
+++ b/acceptance/support/cmdc.cmd
@@ -0,0 +1,2 @@
+@ECHO off
+"%dp0%\cmdc-broken-hook.mjs" %*
diff --git a/acceptance/support/command-code.yaml b/acceptance/support/command-code.yaml
new file mode 100644
index 0000000..adac6e7
--- /dev/null
+++ b/acceptance/support/command-code.yaml
@@ -0,0 +1,12 @@
+schema_version: uh.adapter.v0
+id: command-code
+name: command-code acceptance adapter
+runtime: command-code
+capabilities: [cli-execution, non-interactive, json-output]
+status: active
+config:
+  cli_command: cmdc
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    model: ""
diff --git a/acceptance/support/controller-loss-wrapper.mjs b/acceptance/support/controller-loss-wrapper.mjs
new file mode 100644
index 0000000..078cff7
--- /dev/null
+++ b/acceptance/support/controller-loss-wrapper.mjs
@@ -0,0 +1,25 @@
+import { readFileSync } from "node:fs";
+import { spawn } from "node:child_process";
+
+const [controlPath, executable, ...args] = process.argv.slice(2);
+if (!controlPath || !executable) throw new Error("usage: controller-loss-wrapper.mjs <control-path> <executable> [args...]");
+const child = spawn(executable, args, { stdio: "inherit", shell: false });
+let killed = false;
+const poll = setInterval(() => {
+  try {
+    const control = JSON.parse(readFileSync(controlPath, "utf8"));
+    if (!killed && control.status === "running" && Number(control.turns) >= 1) {
+      killed = true;
+      clearInterval(poll);
+      child.kill();
+    }
+  } catch {
+    // The controller may not have published its first control record yet.
+  }
+}, 100);
+child.on("close", (code, signal) => {
+  clearInterval(poll);
+  if (killed) process.exit(0);
+  if (signal) process.exit(1);
+  process.exit(code ?? 1);
+});
diff --git a/acceptance/support/costless-wrapper-cmdc.mjs b/acceptance/support/costless-wrapper-cmdc.mjs
new file mode 100644
index 0000000..d6696bc
--- /dev/null
+++ b/acceptance/support/costless-wrapper-cmdc.mjs
@@ -0,0 +1,53 @@
+import { accessSync, readFileSync } from "node:fs";
+import path from "node:path";
+import { spawnSync } from "node:child_process";
+
+function resolveExecutable(command) {
+  if (path.isAbsolute(command) || command.includes(path.sep)) return command;
+  const extensions = process.platform === "win32"
+    ? (process.env.PATHEXT ?? ".COM;.EXE;.BAT;.CMD").split(";").filter(Boolean)
+    : [""];
+  for (const root of (process.env.PATH ?? "").split(path.delimiter).filter(Boolean)) {
+    for (const extension of extensions) {
+      const candidate = path.join(root, `${command}${extension}`);
+      try { accessSync(candidate); return candidate; } catch { /* continue */ }
+    }
+  }
+  return command;
+}
+
+function resolveCmdEntry(cmdPath) {
+  if (!/\.cmd$/i.test(cmdPath)) return null;
+  let content;
+  try { content = readFileSync(cmdPath, "utf8"); } catch { return null; }
+  const matches = [...content.matchAll(/"%(?:~)?dp0%\\([^"]+\.(?:mjs|js))"/gi)];
+  if (matches.length === 0) return null;
+  const entry = matches[matches.length - 1][1];
+  return path.join(path.dirname(cmdPath), ...entry.split(/[\\/]/));
+}
+
+const args = process.argv.slice(2);
+const resolved = resolveExecutable("cmdc");
+const entry = resolveCmdEntry(resolved);
+const needsShell = process.platform === "win32" && entry === null && /\.(cmd|bat)$/i.test(resolved);
+const result = entry
+  ? spawnSync(process.execPath, [entry, ...args], { encoding: "utf8" })
+  : spawnSync(resolved, args, { encoding: "utf8", shell: needsShell });
+const stdout = result.stdout ?? "";
+function stripUsage(value) {
+  if (!value || typeof value !== "object") return value;
+  if (Array.isArray(value)) return value.map(stripUsage);
+  const stripped = {};
+  for (const [key, child] of Object.entries(value)) {
+    if (key !== "usage") stripped[key] = stripUsage(child);
+  }
+  return stripped;
+}
+for (const line of stdout.split(/(\r?\n)/)) {
+  if (line === "\n" || line === "\r\n") { process.stdout.write(line); continue; }
+  try { process.stdout.write(`${JSON.stringify(stripUsage(JSON.parse(line)))}\n`); }
+  catch { process.stdout.write(line); }
+}
+if (result.stderr) process.stderr.write(result.stderr);
+if (result.error) { console.error(result.error.message); process.exit(1); }
+process.exit(result.status ?? 1);
diff --git a/acceptance/support/costless-wrapper.mjs b/acceptance/support/costless-wrapper.mjs
new file mode 100644
index 0000000..13a1d87
--- /dev/null
+++ b/acceptance/support/costless-wrapper.mjs
@@ -0,0 +1,36 @@
+import { accessSync } from "node:fs";
+import path from "node:path";
+import { spawnSync } from "node:child_process";
+
+function resolveExecutable(command) {
+  if (path.isAbsolute(command) || command.includes(path.sep)) return command;
+  const extensions = process.platform === "win32"
+    ? (process.env.PATHEXT ?? ".COM;.EXE;.BAT;.CMD").split(";").filter(Boolean)
+    : [""];
+  for (const root of (process.env.PATH ?? "").split(path.delimiter).filter(Boolean)) {
+    for (const extension of extensions) {
+      const candidate = path.join(root, `${command}${extension}`);
+      try { accessSync(candidate); return candidate; } catch { /* continue */ }
+    }
+  }
+  return command;
+}
+const result = spawnSync(resolveExecutable("omp"), process.argv.slice(2), { encoding: "utf8", shell: false });
+const stdout = result.stdout ?? "";
+function stripUsage(value) {
+  if (!value || typeof value !== "object") return value;
+  if (Array.isArray(value)) return value.map(stripUsage);
+  const stripped = {};
+  for (const [key, child] of Object.entries(value)) {
+    if (key !== "usage") stripped[key] = stripUsage(child);
+  }
+  return stripped;
+}
+for (const line of stdout.split(/(\r?\n)/)) {
+  if (line === "\n" || line === "\r\n") { process.stdout.write(line); continue; }
+  try { process.stdout.write(`${JSON.stringify(stripUsage(JSON.parse(line)))}\n`); }
+  catch { process.stdout.write(line); }
+}
+if (result.stderr) process.stderr.write(result.stderr);
+if (result.error) { console.error(result.error.message); process.exit(1); }
+process.exit(result.status ?? 1);
diff --git a/acceptance/support/denial-extension.mjs b/acceptance/support/denial-extension.mjs
new file mode 100644
index 0000000..54a7a78
--- /dev/null
+++ b/acceptance/support/denial-extension.mjs
@@ -0,0 +1,6 @@
+export default function denialExtension(pi) {
+  pi.on("tool_call", async () => ({
+    block: true,
+    reason: "CONTRACT: acceptance denial budget",
+  }));
+}
diff --git a/acceptance/support/denial-wrapper.mjs b/acceptance/support/denial-wrapper.mjs
new file mode 100644
index 0000000..d42fa18
--- /dev/null
+++ b/acceptance/support/denial-wrapper.mjs
@@ -0,0 +1,33 @@
+import { accessSync } from "node:fs";
+import path from "node:path";
+import { spawnSync } from "node:child_process";
+import { fileURLToPath } from "node:url";
+
+function resolveExecutable(command) {
+  if (path.isAbsolute(command) || command.includes(path.sep)) return command;
+  const pathValue = process.env.PATH ?? "";
+  const extensions = process.platform === "win32"
+    ? (process.env.PATHEXT ?? ".COM;.EXE;.BAT;.CMD").split(";").filter(Boolean)
+    : [""];
+  for (const root of pathValue.split(path.delimiter).filter(Boolean)) {
+    for (const extension of extensions) {
+      const candidate = path.join(root, `${command}${extension}`);
+      try {
+        accessSync(candidate);
+        return candidate;
+      } catch {
+        // Continue searching PATH entries and PATHEXT extensions.
+      }
+    }
+  }
+  return command;
+}
+
+const extension = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "denial-extension.mjs");
+const args = ["--extension", extension, ...process.argv.slice(2)];
+const result = spawnSync(resolveExecutable("omp"), args, { stdio: "inherit", shell: false });
+if (result.error) {
+  console.error(result.error.message);
+  process.exit(1);
+}
+process.exit(result.status ?? 1);
diff --git a/acceptance/support/oh-my-pi-denial.yaml b/acceptance/support/oh-my-pi-denial.yaml
new file mode 100644
index 0000000..3ec4a50
--- /dev/null
+++ b/acceptance/support/oh-my-pi-denial.yaml
@@ -0,0 +1,14 @@
+schema_version: uh.adapter.v0
+id: oh-my-pi
+name: oh-my-pi denial acceptance adapter
+runtime: oh-my-pi
+capabilities: [cli-execution, non-interactive, json-output]
+status: active
+config:
+  cli_command: denial-wrapper.mjs
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    mode: json
+    allow_extensions: true
+    allow_skills: false
diff --git a/acceptance/support/oh-my-pi.yaml b/acceptance/support/oh-my-pi.yaml
new file mode 100644
index 0000000..207aade
--- /dev/null
+++ b/acceptance/support/oh-my-pi.yaml
@@ -0,0 +1,14 @@
+schema_version: uh.adapter.v0
+id: oh-my-pi
+name: oh-my-pi costless acceptance adapter
+runtime: oh-my-pi
+capabilities: [cli-execution, non-interactive, json-output]
+status: active
+config:
+  cli_command: omp
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    mode: json
+    allow_extensions: false
+    allow_skills: false
diff --git a/apps/docs/content/docs/architecture/hermes-proxy-spike.mdx b/apps/docs/content/docs/architecture/hermes-proxy-spike.mdx
index 6985c88..785dc2c 100644
--- a/apps/docs/content/docs/architecture/hermes-proxy-spike.mdx
+++ b/apps/docs/content/docs/architecture/hermes-proxy-spike.mdx
@@ -15,7 +15,7 @@ Closes the discovery phase of [UH-32](https://linear.app/agenticengineering-agen
 
 ## 1. Environment
 
-* Hermes Agent **`v0.14.0 (2026.5.16)`** — installed at `/Users/eduardojaviergarcialopez/.hermes/hermes-agent`, Python 3.11.14, OpenAI SDK 2.24.0. Confirmed minimum version per [UH-31](https://linear.app/agenticengineering-agency/issue/UH-31) (`MINIMUM_HERMES_VERSION = 0.14.0`).
+* Hermes Agent **`v0.14.0 (2026.5.16)`** — installed at `/Users/example/.hermes/hermes-agent`, Python 3.11.14, OpenAI SDK 2.24.0. Confirmed minimum version per [UH-31](https://linear.app/agenticengineering-agency/issue/UH-31) (`MINIMUM_HERMES_VERSION = 0.14.0`).
 * Proxy launched on the workstation with:
   ```
   hermes proxy start --provider nous
diff --git a/apps/docs/content/docs/architecture/mission-packet-schema.mdx b/apps/docs/content/docs/architecture/mission-packet-schema.mdx
index ed516cf..343f08b 100644
--- a/apps/docs/content/docs/architecture/mission-packet-schema.mdx
+++ b/apps/docs/content/docs/architecture/mission-packet-schema.mdx
@@ -26,7 +26,7 @@ objective: >
   Build the initial documentation foundation before implementation begins.
 
 context:
-  repo_root: /Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness
+  repo_root: /Users/example/AgenticEngineering/ultimate-harness
   read_first:
     - README.md
     - docs/architecture/overview.md
diff --git a/docs/README.md b/docs/README.md
index 6cfe2c2..8c7b014 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -9,6 +9,7 @@ For the active roadmap (epics, in-flight slices, recently shipped), see [ROADMAP
 ## Start here
 
 0. [Quickstart](./quickstart.md) — install, initialize, run, verify, and inspect a mission.
+- [Orchestrator guide](./orchestrator-guide.md) — mission lifecycle, team execution, observability, human decisions and CLI reference.
 1. [Configuration](./configuration.md) — project state, env vars, and runtime overrides.
 2. [Runtime targets](./runtime-targets.md) — supported runtimes and adapter boundaries.
 3. [Vision](./VISION.md) — what UH is, who it's for, and what we won't accept.
@@ -17,6 +18,8 @@ For the active roadmap (epics, in-flight slices, recently shipped), see [ROADMAP
 6. [Architecture overview](./architecture/overview.md) — major components and boundaries.
 7. [Runtime adapter contract](./architecture/runtime-adapter-contract.md) — what every adapter implements.
 8. [Mission packet schema](./architecture/mission-packet-schema.md) — the portable work-request format.
+- [Native runtime events](./architecture/runtime-events.md) — adapter event contracts, supervision and accounting boundaries.
+- [Tool guard](./tool-guard.md) — path-only policy, enforcement seams, denial reasons, and artifacts.
 9. [Verification and promotion](./architecture/verification-and-promotion.md) — how sandbox work becomes canonical work.
 10. [BMAD agent map](./workflows/bmad-agent-map.md) — how BMAD-style roles map into Ultimate Harness.
 
@@ -31,7 +34,11 @@ For the active roadmap (epics, in-flight slices, recently shipped), see [ROADMAP
 | `anthropic` | experimental | [Anthropic setup](./runbooks/anthropic-setup.md) — native pay-per-token Messages API (UH-136). |
 | `pi` | active | [Pi setup](./runbooks/pi-setup.md) |
 | `oh-my-pi` | active | [Anthropic via oh-my-pi](./runbooks/anthropic-via-omp.md) — covers the OMP routing path and its ToS posture. |
+| `command-code` | active | [Tool guard](./tool-guard.md), [Acceptance runbook](./runbooks/acceptance.md) |
+| `claude-code` | integration incomplete | [Runtime targets](./runtime-targets.md#claude-code-boundaries) — native CLI execution and current limitations. |
 
+- [Acceptance status](./acceptance/README.md) — generated view of the registry and locally available evidence; a clean checkout contains no execution history.
+- [Acceptance runbook](./runbooks/acceptance.md) — register, run, inspect, and regenerate acceptance evidence.
 For issue-level state and upcoming epics, see [ROADMAP.md](./ROADMAP.md).
 
 ## Documentation map
@@ -39,6 +46,7 @@ For issue-level state and upcoming epics, see [ROADMAP.md](./ROADMAP.md).
 ### Research
 
 - [Inspiration systems](./research/inspiration-systems.md)
+- [research/landscape-register.md](./research/landscape-register.md): dated, primary-source register of what existing systems do for each 1.0 build item, with per-row verification status and re-check triggers.
 - [Comparison matrix](./research/comparison-matrix.md)
 - [Adopt / reject / defer decisions](./research/adopt-reject-defer.md)
 
@@ -59,6 +67,7 @@ For issue-level state and upcoming epics, see [ROADMAP.md](./ROADMAP.md).
 - [Overview](./architecture/overview.md)
 - [Entities](./architecture/entities.md)
 - [Runtime adapter contract](./architecture/runtime-adapter-contract.md)
+- [Delegation and containment](./architecture/delegation-and-containment.md)
 - [Codex adapter design](./architecture/adapter-codex.md)
 - [Hermes proxy adapter design](./architecture/adapter-hermes-proxy.md)
 - [TUI architecture](./architecture/tui.md)
@@ -70,6 +79,7 @@ For issue-level state and upcoming epics, see [ROADMAP.md](./ROADMAP.md).
 - [AgentFS sandbox backend (design)](./architecture/sandbox-agentfs.md)
 - [Verification and promotion](./architecture/verification-and-promotion.md)
 - [SDD + TDD + cross-runtime QA](./architecture/sdd-tdd-qa.md)
+- [Progressive decisions](./architecture/progressive-decisions.md) — implemented semantic evaluation and proposed policy flows.
 - [Telar planning/governance and UH Run Control boundary](./architecture/telar-integration.md)
 
 ### Runbooks
@@ -82,6 +92,11 @@ For issue-level state and upcoming epics, see [ROADMAP.md](./ROADMAP.md).
 - [Using `uh tui`](./runbooks/using-the-tui.md)
 - [Honcho persistent memory](./runbooks/honcho-memory.md)
 - [Publishing](./runbooks/publishing.md)
+- [Resource-wave smoke](./runbooks/resource-wave-smoke.md)
+- [Worker-contract smoke](./runbooks/worker-contract-smoke.md)
+- [Tool-guard smoke](./runbooks/tool-guard-smoke.md)
+- [Supervisor-loop smoke](./runbooks/supervisor-loop-smoke.md)
+- [MCP server](./runbooks/mcp-server.md)
 
 ### Workflows
 
diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index 420c2ea..8eca445 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -1,12 +1,114 @@
 # Ultimate Harness — Roadmap
 
-Last updated: 2026-05-29. Source of truth for issue state is [Linear](https://linear.app/agenticengineering-agency/team/UH/active) (the canonical UH team); GitHub mirrors via the native 2-way integration. This file is a human-readable index.
+Source of truth for issue state is [Linear](https://linear.app/agenticengineering-agency/team/UH/active); GitHub mirrors through the native integration. This document describes release objectives and unresolved engineering work. Implemented changes are recorded in the [changelog](../CHANGELOG.md).
 
 ## Now
 
+### 1.0 — Integrated execution lifecycle
+
+**In development; not release-ready.** Existing adapter, supervision, recovery,
+resource admission, verification, and review implementations must work together
+under failure. Passing isolated tests or adding an adapter does not establish
+end-to-end acceptance.
+
+#### Mission authoring and coordination
+
+- **Complete packet persistence:** `src/harness/propose.ts` constructs a subset of
+  the mission schema. The supported coordinator path must persist validated guard,
+  runtime override, recovery, shape, and team contracts without allowing workers
+  to write protected `.harness` state.
+- **Prerequisite admission:** dispatch must consume valid required outputs, not
+  merely observe that prerequisite processes exited. Missing or invalid reports
+  must prevent dependent paid execution.
+- **Automatic monitoring and reconnect:** status and Observatory queries exist;
+  unattended controller-loss detection, reconnection, and duplicate-controller
+  prevention require integrated acceptance.
+- **Mid-run steering:** cancellation and saved-session recovery exist, but do not
+  provide a message channel to an active worker.
+- **Coordinator context:** limit inherited tools, integrations and task context
+  according to explicit policy. Measure total consumption across coordinator,
+  workers and retries; prompt length alone is not a sufficient measure.
+
+#### Runtime reliability and accounting
+
+- Resolve Claude context-suffix model identity without weakening route checks.
+  Case and provider-prefix variants are reconciled; suffix variants are not.
+- Distinguish native permission refusal from UH hook denial. A hook allow does not
+  bypass native permissions; compound shell commands may still be refused.
+- Validate Claude coordinator isolation against inherited settings, memory, skills
+  and caller-supplied CLI arguments. Tool/MCP flags alone are not full isolation.
+- Replace repeated scans of accumulated Claude events with bounded incremental
+  accounting; verify missing starts, duplicate envelopes, truncation and interrupted
+  messages. Unobserved totals and unattributed model usage must remain unknown.
+- Define explicit consumption/context policy. Live usage fields currently report
+  measurements; they do not enforce token or context budgets.
+- Complete live team accounting and test stale run-index/control combinations in
+  the Observatory. Verify actual presentation, not only projected JSON.
+- Add stop-reason cost attribution without confusing runtime estimates with bills.
+- Derive per-worker memory limits from declared subprocess requirements where
+  supported, while retaining pre-launch refusal on unsupported platforms.
+
+#### Governed decisions
+
+Current JEV integration covers verification and independent-review collection.
+The [progressive-decision specification](./architecture/progressive-decisions.md)
+also describes routing, scope-change and retry/stop flows that are not implemented.
+
+- Add validated mission decision policy and enforce confidence/provider requirements.
+- Bound provider requests independently of subprocess deadlines.
+- Validate the entire response envelope, including disabled-provider discrimination;
+  distinguish transport failure, invalid JSON and malformed typed answers.
+- Hash submitted evidence before consumer mutation; bound provider metadata and
+  account for judgment usage without persisting raw prompts or responses.
+- Define privacy and evidence-sufficiency rules for criterion descriptions and
+  compact summaries. A judgment cannot establish facts omitted from its input.
+- Keep deterministic failure and human authority dominant. Receipt status alone
+  must not be treated as authorization for promotion, wider scope or new spend.
+
+#### Review, protection and output contracts
+
+- Extend independent review beyond one runtime/model per packet where multiple
+  reviewers or model-family independence are required.
+- Reconcile promotion policies with verified approver authority; a nonempty
+  `approved_by` string is not authenticated identity.
+- Complete credential scoping, isolated worker homes, deny-read protections and
+  preflight verification. Tool flags are not an operating-system security boundary.
+- Extend declared-output checks beyond nonempty files, JSON and configured markers
+  where secret detection or undeclared-output policy is required.
+- Define consistent completion semantics across runtime results and worker reports.
+  Partial artifacts must remain distinguishable from complete deliverables.
+- Improve liveness diagnosis using pending tool-call structure as well as heartbeat
+  freshness; an open terminal or recent event is not proof of forward progress.
+
+#### Release acceptance
+
+Exercise the connected paths below with explicit failure and recovery criteria.
+Keep reproducible definitions in the repository and execution artifacts in private
+local or CI storage. Do not ship local session history as release evidence.
+
+| Area | Required behavior |
+|---|---|
+| Planning | Research → specification → file/check plan → complete validated mission → sandbox and prompt hydration. |
+| Dispatch | Preflight and exact route → guarded execution → streamed artifacts → required-output validation; failure prevents dependent dispatch. |
+| Supervision | Startup, wall, stall, turn, denial, repetition and output limits preserve distinct causes and settle the owned process tree. |
+| Recovery | Cancellation targets one attempt; controller loss reconciles authoritative settlement; eligible saved-session resume retains work; deadline grace remains explicitly incomplete. |
+| Teams | Per-worker contracts, resource-bounded waves, isolated worktrees, integration and verification; unknown cost blocks further paid admission. |
+| Verification | Executable checks, output/TDD gates, hash-bound independent review, manual dispositions and promotion policy preserve deterministic failures and human authority. |
+| Decisions | Typed recommendations are consumed only within deterministic policy, with explicit unavailable, malformed and uncertain outcomes. |
+| Observation | Fresh, stale, unknown, failed and completed states remain distinct across native processes, teams, accounting, UI and reconnect. |
+| Comparison | Cross-adapter execution retains divergences and failures instead of treating unlike native behavior as equivalent. |
+| Platforms | Windows guardian, POSIX cleanup, sandbox backends, TUI and plugin boundaries are verified independently; unsupported behavior fails explicitly. |
+
+The acceptance registry is a mechanism-level subset, not the full release scope.
+Fixture checks do not establish live model behavior, and stale results do not
+establish the current revision. See [acceptance procedures](./runbooks/acceptance.md)
+and [verification](./verification/checks.md).
+
+The default no-evidence report is a registry view, not a portable evidence bundle.
+
 **v0.9.0 (current release, "Memory & adapter matrix" — [Linear UH-131 / UH-136 / UH-137](https://linear.app/agenticengineering-agency/team/UH/active); GitHub PRs #204–#206 / #214 / #215 / #216):** bundles everything merged to `dev` since v0.8.0. Ships a **native Anthropic adapter** (`anthropic`, `status: experimental`, #214) — the official, ToS-clean pay-per-token Messages-API path (`ANTHROPIC_API_KEY` env-only, blocked classification, graceful no-key checker, optional live-smoke CI job); **Honcho memory operations** (#215) — `honcho_search` / `honcho_remember` harness-side ops + per-mission `runtime_config.honcho_memory` opt-out on every Honcho-aware adapter; **team-run dogfood fixes** (#216) — UH-127 `passed_partial` verdict (no more false BLOCKED), UH-128 per-worker artifact-bleed fix, UH-129 `integration_report_path` default under `.harness/missions/<id>/team/`, UH-130 constraints-advisory warning; and **Phase-0 DX hardening** (#204–#206) — real `uh --version` from `package.json`, an opt-in PostHog telemetry primitive (unwired; UH-135 follow-up), adoption docs, a curated npm `files:` allowlist, and CI plugin gates. Will be published as `@agenticengineeringagency/ultimate-harness@0.9.0` on npm `latest` (tagged `v0.9.0` + `plugin-v0.9.0` on `main` via the dev→main release PR). See [`CHANGELOG.md`](../CHANGELOG.md) `[0.9.0]`.
 
-Epics 2–5 plus **Epics 6–8** (live SSE tail + cancel, adapter capability routing + cost, SDD hardening) shipped and were **released as v0.6.0** — published to npm as `@agenticengineeringagency/ultimate-harness@0.6.0`. v0.6.0 also corrected two v0.5.0 gaps: the auto-router `uh mission run --auto` (UH-101, claimed shipped but never built) and `runtime.usage` token capture (which the cost features assumed). The Epics 6–8 execution spec is [`docs/specs/epics-6-7-8.md`](./specs/epics-6-7-8.md); per-slice detail is in the [CHANGELOG](../CHANGELOG.md) `[0.6.0]`. **v0.7.0:** OpenRouter adapter ([#134]), **vanilla `pi` adapter ([#135], shipped active)**, sandbox backend abstraction + `directory` backend ([#136]) and a `container` stub ([#137]), verify-then-promote auto-trigger ([#139]), capability-match enforcement ([#138], already shipped), and a shared adapter-artifact-helper refactor ([#133]). **v0.8.0:** OpenSandbox-gated `container` execution backend ([#155]/[#157]) with ADR + runbook ([#154]), and `oh-my-pi` graduated to active ([#156]); published as `@agenticengineeringagency/ultimate-harness@0.8.0`. **v0.9.0 (current release, see Now above):** native `anthropic` adapter (experimental, [#214]), Honcho memory operations + opt-out ([#215]), team-run dogfood fixes ([#216]), and Phase-0 DX hardening ([#204]–[#206]). **Issue tracking:** [Linear](https://linear.app/agenticengineering-agency/team/UH/active) is the canonical source of truth for the UH team; GitHub issues mirror Linear via the native 2-way integration (per-issue auto-creation + state/title/body sync). Cite Linear IDs (UH-NNN) in commits, PRs, and docs — the GitHub mirror picks up the back-link automatically. The v0.5.0/v0.6.0 epic records (UH-92..UH-111) and the v0.7.0/v0.8.0 milestone slices (UH-112..UH-125) were backfilled to Linear post-workspace-upgrade so the history matches the CHANGELOG.
+Epics 2–5 plus **Epics 6–8** (live SSE tail + cancel, adapter capability routing + cost, SDD hardening) shipped and were **released as v0.6.0** — published to npm as `@agenticengineeringagency/ultimate-harness@0.6.0`. v0.6.0 also corrected two v0.5.0 gaps: the auto-router `uh mission run --auto` (UH-101, claimed shipped but never built) and `runtime.usage` token capture (which the cost features assumed). The Epics 6–8 execution spec is [`specs/epics-6-7-8.md`](../specs/epics-6-7-8.md); per-slice detail is in the [CHANGELOG](../CHANGELOG.md) `[0.6.0]`. **v0.7.0:** OpenRouter adapter ([#134]), **vanilla `pi` adapter ([#135], shipped active)**, sandbox backend abstraction + `directory` backend ([#136]) and a `container` stub ([#137]), verify-then-promote auto-trigger ([#139]), capability-match enforcement ([#138], already shipped), and a shared adapter-artifact-helper refactor ([#133]). **v0.8.0:** OpenSandbox-gated `container` execution backend ([#155]/[#157]) with ADR + runbook ([#154]), and `oh-my-pi` graduated to active ([#156]); published as `@agenticengineeringagency/ultimate-harness@0.8.0`. **v0.9.0 (current release, see Now above):** native `anthropic` adapter (experimental, [#214]), Honcho memory operations + opt-out ([#215]), team-run dogfood fixes ([#216]), and Phase-0 DX hardening ([#204]–[#206]). **Issue tracking:** [Linear](https://linear.app/agenticengineering-agency/team/UH/active) is the canonical source of truth for the UH team; GitHub issues mirror Linear via the native 2-way integration (per-issue auto-creation + state/title/body sync). Cite Linear IDs (UH-NNN) in commits, PRs, and docs — the GitHub mirror picks up the back-link automatically. The v0.5.0/v0.6.0 epic records (UH-92..UH-111) and the v0.7.0/v0.8.0 milestone slices (UH-112..UH-125) were backfilled to Linear post-workspace-upgrade so the history matches the CHANGELOG.
 
 ### Epic 5 — Hermes Dashboard plugin v2: multi-run history + replay + observability ([UH-84](https://linear.app/agenticengineering-agency/issue/UH-84))
 
diff --git a/docs/acceptance/README.md b/docs/acceptance/README.md
new file mode 100644
index 0000000..85ae2a3
--- /dev/null
+++ b/docs/acceptance/README.md
@@ -0,0 +1,42 @@
+<!-- Generated by `uh acceptance report`; do not edit by hand. -->
+# Acceptance evidence
+
+| Capability | Inventory ID | Title | State | Last checked | Runtime | Model | Cost (USD) | Evidence |
+|---|---|---|---|---|---|---|---:|---|
+| C1 | C1 | Per-worker contracts | unproven | — | oh-my-pi | — | — | — |
+| C1-cmdc | C1 | Per-worker contracts | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| S1 | S1 | Resource wave baseline | unproven | — | oh-my-pi | — | — | — |
+| S1-cmdc | S1 | Resource wave baseline | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| S2 | S2 | Resource wave accounting | unproven | — | oh-my-pi | — | — | — |
+| S2-cmdc | S2 | Resource wave accounting | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| S3 | S3 | Resource wave settlement | unproven | — | oh-my-pi | — | — | — |
+| S3-cmdc | S3 | Resource wave settlement | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| G2 | G2 | Denial budget | unproven | — | oh-my-pi | — | — | — |
+| G2-cmdc | G2 | Denial budget | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R5 | R5 | Guardian ownership | unproven | — | oh-my-pi | — | — | — |
+| R5-cmdc | R5 | Guardian ownership | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| policy | G3 | Protected-path policy stop | unproven | — | oh-my-pi | — | — | — |
+| policy-cmdc | G3 | Protected-path policy stop | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R10-stall | R10 | Stall recovery | fixture_only | — | oh-my-pi | — | — | — |
+| R10-stall-cmdc | R10 | Stall recovery | fixture_only | — | command-code | qwen/qwen3.8-flash | — | — |
+| R10-controller-loss | R10 | Controller loss recovery | unproven | — | oh-my-pi | — | — | — |
+| R10-controller-loss-cmdc | R10 | Controller loss recovery | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R7-turn-cap | R7 | Turn limit | unproven | — | oh-my-pi | — | — | — |
+| R7-turn-cap-cmdc | R7 | Turn limit | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R7-repeated-failure | R7 | Repeated-failure stop and recovery | unproven | — | oh-my-pi | — | — | — |
+| R7-repeated-failure-cmdc | R7 | Repeated-failure stop and recovery | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| C1-missing-output | C1 | Missing worker output | unproven | — | oh-my-pi | — | — | — |
+| C1-missing-output-cmdc | C1 | Missing worker output | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| S3-budget-exhausted | S3 | Exhausted team budget | unproven | — | oh-my-pi | — | — | — |
+| S3-budget-exhausted-cmdc | S3 | Exhausted team budget | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| S3-unknown-cost | S3 | Unknown cost admission | unproven | — | oh-my-pi | — | — | — |
+| S3-unknown-cost-cmdc | S3 | Unknown cost admission | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R5-deep-path | R5 | Deep workspace path | unproven | — | oh-my-pi | — | — | — |
+| R5-deep-path-cmdc | R5 | Deep workspace path | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| G1-cmdc-guard | G1 | Command Code guard | unproven | — | command-code | z-ai/glm-5.3-flash | — | — |
+| X1-paths | X1 | Forward-slash paths | unproven | — | oh-my-pi | — | — | — |
+| X1-paths-cmdc | X1 | Forward-slash paths | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| R11-deadline-grace | R11 | Deadline grace delivery | unproven | — | oh-my-pi | — | — | — |
+| R11-deadline-grace-cmdc | R11 | Deadline grace delivery | unproven | — | command-code | qwen/qwen3.8-flash | — | — |
+| G1-cmdc-shell-policy | G1 | Command Code shell protected-path policy | unproven | — | command-code | z-ai/glm-5.3-flash | — | — |
+| G1-cmdc-hook-broken | G1 | Command Code broken guard hook | unproven | — | command-code | z-ai/glm-5.3-flash | — | — |
diff --git a/docs/architecture/adapter-codex.md b/docs/architecture/adapter-codex.md
index 297c298..3510982 100644
--- a/docs/architecture/adapter-codex.md
+++ b/docs/architecture/adapter-codex.md
@@ -20,13 +20,13 @@ Baseline command:
 
 ```text
 codex exec \
-  --sandbox workspace-write \
   --cd <sandbox-path> \
+  --sandbox workspace-write \
   --json \
   --output-last-message <mission-dir>/runtime-final.txt \
   --skip-git-repo-check \
+  [-m <model>] \
   "<mission-prompt>"
-```
 
 Flag rationale:
 
@@ -139,7 +139,7 @@ mission_id: <mission.id>
 runtime:
   adapter_id: codex
   session_id: <codex-thread-id>
-status: completed   # completed | failed | cancelled | blocked
+status: passed   # passed | failed | blocked | cancelled
 summary: <one-line summary>
 artifacts:
   - path: <path>
@@ -160,8 +160,8 @@ logs:
 If the model omits the block, the adapter synthesizes one from the JSONL
 event stream and the captured diff, and stamps `status: blocked` with a
 `runtime.missing_result_block` finding. The harness never trusts the model's
-status word alone — `status: completed` requires a non-empty diff *and*
-either an empty `blockers[]` or explicit waiver.
+status word alone. A canonical `status: passed` requires a zero exit and a
+valid runtime-result block.
 
 ## stdout/stderr/diff capture
 
@@ -212,20 +212,20 @@ The Codex adapter does not run verification itself. After `collect`, it:
 Mission `verification.review_gates[]` are passed through unchanged and
 surface in the review step that follows verification.
 
-## Default flags
-
-The manifest's `config` block carries the runtime defaults. They are
-overridable per-mission via workflow profiles.
-
 | Config field        | Default              | Notes                                                  |
 | ------------------- | -------------------- | ------------------------------------------------------ |
 | `cli_command`       | `codex`              | Resolved through `PATH`.                               |
 | `default_toolsets`  | `[]`                 | Codex tool surface is controlled in `~/.codex/config`. |
 | `default_provider`  | `""`                 | Unused; provider is configured in Codex itself.        |
-| `default_model`     | `""`                 | Empty means "let Codex pick its configured default".   |
+| `default_model`     | `""`                 | Used when no mission runtime model override is set.    |
 | `worktree_mode`     | `true`               | Codex always runs in an allocated worktree.            |
 | `pass_session_id`   | `false`              | Codex assigns its own thread id; the adapter records it.|
 
+`runtime_config.model` overrides `config.default_model`. A non-empty effective
+model is passed as `-m <model>` and becomes the expected route; the structured
+Codex event stream must attest that route. When no model is configured, the
+adapter emits no model flag and does not enforce route attestation.
+
 Hard-coded launch flags (not in the manifest because they are part of the
 adapter contract, not user policy):
 
diff --git a/docs/architecture/delegation-and-containment.md b/docs/architecture/delegation-and-containment.md
new file mode 100644
index 0000000..a130537
--- /dev/null
+++ b/docs/architecture/delegation-and-containment.md
@@ -0,0 +1,120 @@
+# Delegation and containment
+
+## Goal
+
+A worker does the work it was given, inside the directory it was given, on the
+model it was assigned, and nothing else. Anything a worker cannot do within
+those limits goes back to its orchestrator. These rules are enforced by the
+harness and do not depend on the model following instructions.
+
+## Who may start an agent
+
+Only an orchestrator starts agents, and only through the harness
+(`uh mission run`, `run-all`, `run-team`). Every run started that way gets a
+guard, an assigned route, cost accounting and artifacts. An agent started any
+other way has none of those, so no other way is allowed.
+
+| Route a worker might take | Enforcement |
+|---|---|
+| An agent CLI from the shell (`omp`, `codex`, `claude`, ...) | `agent_client`, judged by executable position: segment heads, launcher targets (`npx`, `env`, `xargs`, `&`), nested shell bodies, command substitutions. A name that appears as an argument, search pattern or path is not an invocation. |
+| The harness itself (`uh mission run`, `node dist/cli.js mission run-team`, `uh acceptance run`) | `agent_client`. Read-only harness commands stay available. The Claude Code orchestrator role keeps an allowance for controller commands only. |
+| The runtime's own sub-agent tool (`task`, `agent`, `subagent`, ...) | Denied by tool name for every role. `guard.allow_native_subagents: true` allows one level on the assigned route. |
+| A runtime configured to delegate on its own | The oh-my-pi adapter writes a per-run configuration overlay that removes the sub-agent tool and pins every model role. |
+
+A denied worker is told to end with `ESCALATE: <what its orchestrator should
+delegate>`. Agent-client denial is independent of network denial: a mission
+that needs the network still may not start agents. An explicit empty
+`agent_clients` list is the only opt-out.
+
+## Routes
+
+A route is a provider and a model. A mission pins one; the run is held to it.
+
+- **Pinning.** `--model` style flags pin only a runtime's top-level session.
+  Runtimes that resolve helper, summary or sub-agent models from operator-global
+  settings must have those roles pinned as well. The oh-my-pi overlay does this;
+  custom role names the harness does not know are covered by attestation below.
+- **Attestation.** Supervision reads route metadata from native model and
+  message events, and from the structured progress metadata of delegation
+  tools. A route outside the assignment stops the run with `route_mismatch` and
+  names the route. A run that never attests its route ends `route_unverified`.
+  Tool arguments and message text are never read for this.
+- **Comparison.** Identifiers are compared after trimming and lowercasing, and
+  an optional provider prefix is reconciled. There is no alias table and no
+  partial matching: a different model is a mismatch.
+- **Authorization.** `fleet.routes` in the project file lists which model may
+  run on which adapter in which role. A run outside it, or with no assigned
+  model, is refused before spawn. `--force` does not bypass spend authorization.
+
+## The working directory
+
+Reading anywhere is allowed. Writing is allowed only under the mission's write
+roots inside the worker root.
+
+- Relative write, delete, copy and redirection targets are resolved against the
+  effective directory of the command, not the worker root. `cd`, `pushd`,
+  `popd`, `Set-Location` and `Push-Location` are tracked through the segments of
+  a command, inside nested shell bodies, and from an explicit `cwd` on the tool
+  input. A directory change the guard cannot resolve statically denies every
+  later write in that command.
+- Harness state inside the worker root (`.harness`, `.commandcode`, `.omp`,
+  `.pi`, `.git`) is `protected_root`; supervision stops the run with `policy`.
+- The guard policy and log, and harness state outside the worker root, are
+  `guard_tamper`; supervision stops the run with `policy`. A budgeted denial is
+  the wrong response to an attempt to change the rules.
+- The guard is content-blind. It judges tool names, executable positions and
+  paths, never file contents or replacement text.
+
+## The process tree
+
+The harness owns the worker's process tree: a Windows Job Object with
+kill-on-close and an optional memory cap, a process group on POSIX. Launch
+routes that leave that tree are denied as `containment_escape`:
+`Win32_Process.Create` through WMI or CIM, scheduled tasks, services, `setsid`,
+`systemd-run`, `disown`, `at`, `batch`, `crontab` edits and backgrounded
+`nohup`. Windows nests job objects, so a harness run started inside another
+harness run stays inside the outer job and its limits can only be tighter.
+
+In a container without an init process, orphaned descendants are never reaped.
+Run the harness under an init (`docker run --init` or tini).
+
+## Liveness
+
+A stall is the absence of progress while no tool is in flight. Text deltas are
+not progress, so repetitive output cannot defeat the stall budget. Reasoning
+output is liveness, because a model that plans a change before its first tool
+call is working; it is bounded by `max_thinking_ms` (default four times the
+stall timeout), and a stretch whose text repeats does not count as live. Only
+lengths and window counts are kept; reasoning text is never persisted.
+
+## Observers
+
+Status tools, dashboards and orchestrators read run artifacts while a run is
+live. A reader must never be able to fail a run. Files that are replaced by
+rename retry on `EPERM`, `EACCES` and `EBUSY` with bounded backoff; a periodic
+heartbeat that cannot be persisted is skipped, not fatal; terminal writes stay
+strict because losing them loses evidence.
+
+## Running the harness on its own repository
+
+- Worktrees are created locked (`git worktree add --lock --reason`) and
+  unlocked before removal. The harness never runs a global `git worktree prune`,
+  because it deletes the registration of any worktree whose directory is missing
+  at that moment, including ones owned by another controller.
+- `uh mission run` refuses to run in the project root unless `--no-sandbox` is
+  explicit. A lost sandbox registration must not turn into edits of the live tree.
+- A worker's commit contains only the worker's own work. Protected roots are
+  excluded by pathspec, which also covers files the repository already tracks.
+- The build that verifies a worker's change is the orchestrator's build, not the
+  one the worker just edited. The evaluator stays outside the loop it evaluates.
+
+## Known limits
+
+- The guard sees shell commands and file tools. A runtime tool that executes
+  code in-process (an `eval` or `python` tool) can write without a path the
+  guard can judge. Withhold such tools unless a mission opts in.
+- Tool flags and hooks are not an operating-system security boundary. Credential
+  scoping and isolated worker homes remain roadmap work.
+- Rebuilding the harness while a run is live can replace the guard hook under a
+  running worker. Hooks should be published to a content-addressed location per
+  run, as the Windows guardian already is.
diff --git a/docs/architecture/experiments.md b/docs/architecture/experiments.md
new file mode 100644
index 0000000..20faf67
--- /dev/null
+++ b/docs/architecture/experiments.md
@@ -0,0 +1,105 @@
+# Experiments: Matched-Budget Runs Over a Seeded Held-Out Split
+
+## What an experiment is
+
+The experience store indexes settled runs and `uh observatory compare` compares
+two arms of a set of runs that already exist. An **experiment** is the thing
+that produces comparable runs on purpose: a task set with executable checks,
+partitioned into a `search` and a `held_out` split, executed under two or more
+configurations (arms) at a matched budget, and reported honestly against the
+baseline of simply repeating the cheaper configuration.
+
+An experiment is declared in `.harness/experiments/<id>.yaml` and validated
+against the strict `uh.experiment.v0` schema (`src/schema/experiment.ts`). Its
+tasks are mission ids under `.harness/missions/`, and every task mission must
+declare `verification.required_checks` — a task with no executable check cannot
+be scored.
+
+```yaml
+schema_version: uh.experiment.v0
+id: denial-tone
+title: Guard denial tone
+tasks: [mission-a, mission-b, mission-c, mission-d]
+split:
+  seed: 7
+  held_out_fraction: 0.34        # default
+arms:
+  - id: terse
+    template: balanced
+  - id: explanatory
+    template: balanced
+    runtime_config_overrides:
+      denial_tone: explanatory
+    attempts_per_task: 1          # default
+budget:
+  max_runs: 40
+  max_total_cost_usd: 25
+baseline:
+  arm: terse
+  parallel_attempts: 1            # default
+```
+
+## The invariants
+
+- **The evaluator lives outside the loop.** A run is scored by the task's own
+  `verification.required_checks` and its settled run record, never by the model
+  that produced it: pass rate comes from `status`, denials from `denials`, the
+  guard classes from the `tool-guard.log`, and cost from the priced run record.
+- **Held-out acceptance is not optional.** The split partitions the tasks, and
+  the report always presents each partition separately. A gain that appears only
+  on `search` tasks is not a gain; published harness-evolution work shows search
+  gains vanishing on held-out tasks, so the report never pools the two.
+- **The budget is matched.** Arms are interleaved at every attempt level
+  (`planExperiment`), so a budget stop trims each arm by the same amount and can
+  never favour one arm. When a budget line is reached the remaining plan entries
+  are recorded as skipped with reason `budget`, and skipped rows are never
+  counted as evidence.
+- **Optimizer tokens are counted.** Token totals and cost are read from the run
+  record the experience store already builds. Unknown cost is never treated as
+  zero: it stays `unknown` in the report, and an unpriced run contributes
+  nothing to the cost budget (so it can neither look free nor silently spend
+  past the cap).
+- **Determinism.** A seeded split is a pure function of `seed` and
+  `held_out_fraction` (mulberry32), so a seed always names the same partition
+  and the seed is part of every output. An explicit `split.held_out` list is
+  used verbatim.
+
+## File layout
+
+```
+.harness/experiments/
+  <id>.yaml          # the spec (uh.experiment.v0)
+  <id>/
+    plan.json        # seed, split sizes, and the ordered {task, arm, attempt, split} plan
+    runs.ndjson      # one row per plan entry: the settled record, or a budget skip
+    report.json      # per-split per-arm summary, arm comparisons, baseline repeats
+    report.md        # the same report as markdown
+```
+
+`runExperiment` writes a `experiment.json` (`{ id, arm, split }`) into each
+run's directory under `.harness/missions/<task>/runs/<run_id>/`, the same way a
+session template records `session-template.json`. `indexRuns` reads it into the
+run record's optional `experiment` field, so an operator can group a mission's
+runs by experiment and arm.
+
+## Module and CLI surface
+
+`src/harness/experiment.ts` is pure except for the injected runner:
+`splitTasks(spec)` and `planExperiment(spec)` are deterministic and
+side-effect-free, and `runExperiment(root, spec, { runner, now })` owns only the
+budget loop, the persistence, and the tagging. The runner has the shape of the
+per-runtime `runtimeRunner` seam in `harness/run-all.ts`: tests inject a fake and
+never start a model runtime. `summarizeExperiment(runs, spec)` groups rows by
+split and arm, calls the same `compareArms` the observatory uses for every arm
+pair within a split, and adds the baseline arm's best-of-n and
+attempts-to-match lines.
+
+```
+uh experiment plan <id>              # seed, split sizes, arm-interleaved plan
+uh experiment run <id> [--json]      # execute and persist plan/runs/report
+uh experiment report <id> [--json]   # summarize persisted runs against the baseline
+```
+
+Human output prints the seed, the split sizes, each arm per split with its
+Wilson interval, the mean denials and the `guard_tamper` / `containment_escape`
+stop counts, the verdict sentence, and the plain-repeats line.
diff --git a/docs/architecture/harness-artifacts.md b/docs/architecture/harness-artifacts.md
index f9c4f8e..979964b 100644
--- a/docs/architecture/harness-artifacts.md
+++ b/docs/architecture/harness-artifacts.md
@@ -26,6 +26,7 @@
     archive/
   missions/
     mission-2026-05-13-docs-spine/
+      events.ndjson                # mission-scoped lifecycle events
       mission.yaml                # canonical mission packet
       design.md                   # optional UH-75 design companion
       verification.yaml           # output of `uh verify`
@@ -47,6 +48,7 @@
     index.yaml
   audit/
     events.ndjson
+  audit.log
 ```
 
 ## File responsibilities
@@ -60,6 +62,7 @@
 - `missions/<id>/mission.yaml` — canonical mission packet.
 - `missions/<id>/design.md` — optional UH-75 design companion (Why / What / How).
 - `missions/<id>/verification.yaml` — checks and results.
+- `missions/<id>/events.ndjson` — mission-scoped lifecycle event stream; promotion appends `promotion.recorded` events here.
 - `missions/<id>/promotion.yaml` — promotion decision and applied refs.
 - `missions/<id>/runtime-result.yaml` — MIRROR of the latest run's `runtime-result.yaml`. Atomic copy from `runs/<run_id>/runtime-result.yaml` on every run completion, so `uh status`, validate-drift, and the dashboard's `last_run` field can read "the latest result" without learning per-run paths (UH-82).
 - `missions/<id>/latest.json` — pointer at the most recent run: `{schema_version, run_id, started_at, finished_at?, status}` (UH-82). Written before any artifact lands so in-flight runs are visible; rewritten on terminal status.
@@ -67,6 +70,7 @@
 - `missions/<id>/runs/<run_id>/` — per-run artifact directory. Holds the run's `prompt.md`, `runtime-session.yaml`, `events.ndjson`, `runtime.stdout.log`, `runtime.stderr.log`, `diff.patch`, `runtime-result.yaml`, and `runtime-final.txt`. Concurrent runs of the same mission are safe because each lands under its own `<run_id>` (UH-82).
 - `sandboxes/index.yaml` — active/discarded/promoted sandboxes.
 - `audit/events.ndjson` — append-only project-level timeline.
+- `audit.log` — text lines appended for manually recorded verdicts.
 
 ## Design notes
 
diff --git a/docs/architecture/hermes-proxy-spike.md b/docs/architecture/hermes-proxy-spike.md
index cd3ace8..b4bfaa0 100644
--- a/docs/architecture/hermes-proxy-spike.md
+++ b/docs/architecture/hermes-proxy-spike.md
@@ -12,7 +12,7 @@ Closes the discovery phase of [UH-32](https://linear.app/agenticengineering-agen
 
 ## 1. Environment
 
-* Hermes Agent **`v0.14.0 (2026.5.16)`** — installed at `/Users/eduardojaviergarcialopez/.hermes/hermes-agent`, Python 3.11.14, OpenAI SDK 2.24.0. Confirmed minimum version per [UH-31](https://linear.app/agenticengineering-agency/issue/UH-31) (`MINIMUM_HERMES_VERSION = 0.14.0`).
+* Hermes Agent **`v0.14.0 (2026.5.16)`** — installed at `/Users/example/.hermes/hermes-agent`, Python 3.11.14, OpenAI SDK 2.24.0. Confirmed minimum version per [UH-31](https://linear.app/agenticengineering-agency/issue/UH-31) (`MINIMUM_HERMES_VERSION = 0.14.0`).
 * Proxy launched on the workstation with:
   ```
   hermes proxy start --provider nous
diff --git a/docs/architecture/mission-packet-schema.md b/docs/architecture/mission-packet-schema.md
index 666797c..cb49b8f 100644
--- a/docs/architecture/mission-packet-schema.md
+++ b/docs/architecture/mission-packet-schema.md
@@ -6,87 +6,149 @@ A mission packet is the portable work request sent to a runtime adapter. It must
 
 ## Draft schema: `uh.mission.v0`
 
+A single-agent mission:
+
 ```yaml
 schema_version: uh.mission.v0
-id: mission-2026-05-13-docs-spine
-title: Create documentation spine for Ultimate Harness
-issue_refs:
-  - provider: github
-    id: "21"
-    url: https://github.com/Agentic-Engineering-Agency/ultimate-harness/issues/21
-  - provider: linear
-    id: UH-1
-workflow_profile: research-docs
-priority: high
-
-objective: >
-  Build the initial documentation foundation before implementation begins.
-
+id: m1-token-refresh
+title: Implement authentication token refresh endpoint
+workflow_profile: spec-first-feature
+priority: medium
+objective: Add a refresh token rotation endpoint with unit tests.
 context:
-  repo_root: /Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness
   read_first:
-    - README.md
-    - docs/architecture/overview.md
-  source_links:
-    - https://github.com/bmad-code-org/BMAD-METHOD
-    - https://github.com/obra/superpowers
-    - https://github.com/gsd-build/get-shit-done
-    - https://github.com/Fission-AI/OpenSpec
-
+    - src/auth/tokens.ts
+  source_links: []
 constraints:
-  - Do not implement the CLI yet.
-  - Keep claims traceable to source systems.
-  - Treat BMAD as inspiration, not dependency.
-  - Prefer human-readable Markdown artifacts.
-
+  - Do not modify existing session cookie semantics.
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+  agent_clients: [omp, cmdc, codex, pi, hermes, aider, gemini, claude, opencode, qwen, goose, cursor-agent]
 skills:
-  required:
-    - writing-plans
-  suggested:
-    - code-review
-
+  required: []
+  suggested: []
 expected_outputs:
   files:
-    - docs/README.md
-    - docs/glossary.md
-    - docs/research/comparison-matrix.md
-    - docs/product/prd.md
-    - docs/architecture/runtime-adapter-contract.md
-    - docs/architecture/mission-packet-schema.md
-    - docs/workflows/bmad-agent-map.md
-
+    - src/auth/refresh.ts
+    - tests/auth/refresh.test.ts
 sandbox:
   backend: git-worktree
   promotion_policy: human-approved
-
 verification:
   required_checks:
-    - name: docs-tree-exists
-      command: find docs -type f | sort
-    - name: git-diff-review
-      command: git diff -- docs README.md
+    - name: unit-tests
+      command: npm test
   review_gates:
     - spec-compliance
-    - documentation-quality
-    - broken-link-sanity
-
-completion_criteria:
-  - Docs tree is navigable from docs/README.md.
-  - Root README links to docs.
-  - Core entities and adapter contract are defined.
-  - MVP boundary is explicit.
-
 acceptance_criteria:
-  - id: ac-tree
-    description: Docs tree navigable from docs/README.md.
-    check_command: find docs -type f | sort
+  - id: ac-refresh-success
+    description: Refresh endpoint returns 200 on valid token.
+    check_command: npm test -- -t "refresh valid"
     severity: block
-  - id: ac-links
-    description: All Markdown links resolve.
-    check_command: bun run check:links
-    severity: warn
 ```
 
+A team mission adds `shape: team` and a `team` block:
+
+```yaml
+schema_version: uh.mission.v0
+id: mission-docs-spine
+title: Create documentation spine for Ultimate Harness
+workflow_profile: research-docs
+shape: team
+team:
+  workers:
+    - adapter: oh-my-pi
+      role: documentation
+      objective: Author architecture documentation for runtime adapters.
+      runtime_config_overrides:
+        model: openai-codex/gpt-5.6-luna
+      limits:
+        max_turns: 10
+      expected_outputs:
+        files:
+          - docs/architecture/runtime-adapter-contract.md
+      seed: 42
+    - adapter: command-code
+      role: review
+  leader:
+    adapter: oh-my-pi
+    role: integrator
+  resources:
+    max_parallel: 2
+    worker_memory_mb: 2048
+    reserve_memory_mb: 1024
+    max_cost_usd: 5
+    worker_cost_reservation_usd: 1
+```
+
+## Required fields
+
+The mission schema requires these top-level values:
+
+| Field | Requirement |
+| --- | --- |
+| `schema_version` | Exactly `uh.mission.v0`. |
+| `id` | A non-empty string. |
+| `workflow_profile` | A non-empty string. |
+| `title` or `name` | At least one must be a non-empty string. |
+| `team` | Required when `shape: team`; it must contain at least one worker and a leader. |
+
+For a team, each worker requires an accepted `adapter` id and a non-empty `role`; the worker `count` is optional. The leader requires an accepted `adapter` id, while its `role` is optional. Team worker roles must be unique. Other mission fields are optional and receive schema defaults.
+
+## Tool guard block
+
+`guard` is optional on the mission and on each `team.workers[]` entry. It defines the per-tool-call contract applied by the native `oh-my-pi` and `command-code` adapters. The input block is strict; unknown fields are rejected.
+
+| Field | Meaning | Default |
+| --- | --- | --- |
+| `write_roots` | Roots in which write and delete targets are allowed. | `["."]` |
+| `deny_git_mutations` | Deny shell Git mutations. | `true` |
+| `deny_package_installs` | Deny package-manager install or add commands. | `true` |
+| `deny_network_clients` | Deny network clients. | `true`, or `false` when `runtime_requirements.needs_network` is true and the field is omitted |
+| `agent_clients` | Executable names treated as agent clients. Always enforced; an explicit empty list is the only opt-out. | `["omp", "cmdc", "codex", "pi", "hermes", "aider", "gemini", "claude", "opencode", "qwen", "goose", "cursor-agent"]` |
+| `allow_native_subagents` | Lets the runtime use its own sub-agent tool (`task`, `agent`, ...). Agent CLIs and UH runs stay denied. Every delegated agent is still held to the assigned route: a different provider or model stops the run with `route_mismatch`. | `false` |
+
+The mission transform resolves a supplied mission block with `resolveToolGuardPolicy`; a worker block is retained as the worker's guard contract. The guard compares target paths only and does not inspect file content. Protected roots are a separate supervisor policy; their defaults are `.harness`, `.commandcode`, `.omp`, `.pi`, and `.git`. The adapter writes the resolved policy and the protected paths to `tool-guard.json` in each run directory. See [Tool Guard](../tool-guard.md) and [Native Runtime Events](./runtime-events.md).
+
+## Team block
+
+`team.workers` lists worker adapter assignments, and `team.leader` identifies the adapter that integrates their work. `team.resources` is optional:
+
+| Field | Meaning |
+| --- | --- |
+| `max_parallel` | Maximum worker count admitted in one wave. Defaults to `4`. |
+| `worker_memory_mb` | Optional per-worker memory cap used to calculate wave concurrency. |
+| `reserve_memory_mb` | Memory reserved before worker admission. Defaults to `1024` MB. |
+| `max_cost_usd` | Optional completed-cost amount used for admission reservations. |
+| `worker_cost_reservation_usd` | Reservation charged to admission for each worker. |
+
+`max_cost_usd` and `worker_cost_reservation_usd` must be supplied together. Resource admission is described in [Runtime Targets](../runtime-targets.md#team-resource-admission).
+
+### Worker contract
+
+Each worker entry in `team.workers` accepts an optional contract defining worker-specific objectives, runtime overrides, limits, expected outputs, and seed values:
+
+| Field | Meaning | How it reaches worker |
+| --- | --- | --- |
+| `objective` | Worker-specific task objective. When specified, it is combined with the parent mission objective as `<worker objective>\n\nTeam objective: <parent objective>`. When omitted, the worker inherits the parent objective. | Prompt |
+| `runtime_config_overrides` | Runtime configuration overrides merged over top-level mission overrides, with worker-level values taking precedence. Used for adapter-specific parameters such as `model`. See [Runtime Supervision and Recovery](../runtime-targets.md#runtime-supervision-and-recovery) for execution `limits` and `recovery` configuration. | Runtime configuration |
+| `limits` | Runtime execution limits for this worker (such as `max_turns`, `timeout_ms`, `startup_timeout_ms`, `stall_timeout_ms`, `max_output_bytes`, `max_denials`, and `max_repeated_failures`). These land under `runtime_config_overrides.limits`. | Runtime configuration |
+| `guard` | Per-tool guard fields for this worker: write roots and Git, package, network, and agent-client denial switches. | Runtime enforcement |
+| `expected_outputs` | Output artifact paths that this worker must produce (`expected_outputs.files`). Evaluated in the worker worktree after the runner returns. | Prompt and settlement |
+| `seed` | Non-negative integer for randomized steps. Injected into the derived packet constraints as `Seed: <seed>. Use it for every randomized step and print it in your final message.` | Prompt |
+
+Per-worker memory cannot be declared in worker `limits`. Per-worker memory is governed exclusively by `team.resources.worker_memory_mb`. Declaring `limits.memory_mb` causes schema validation to fail with: `Per-worker memory is governed by team.resources.worker_memory_mb`.
+
+When a worker declares `expected_outputs.files`, the harness inspects the worker worktree upon completion. If any declared output file is missing or fails verification:
+- The worker settles with status `blocked` rather than `succeeded`.
+- `team-state.json` records `blocked_reason` explaining the failure (for example, `Declared output out/report.md: Declared output is missing, unreadable, or outside the workspace`).
+- The worker's branch is not committed and is excluded from leader integration.
+
+Mission-level `expected_outputs` remain a leader-stage verification concern evaluated against the integrated repository tree.
+
 ## Field rules
 
 - `schema_version` is required and must be versioned.
diff --git a/docs/architecture/progressive-decisions.md b/docs/architecture/progressive-decisions.md
new file mode 100644
index 0000000..a9135f1
--- /dev/null
+++ b/docs/architecture/progressive-decisions.md
@@ -0,0 +1,223 @@
+# Progressive governed decisions
+
+Status: partially implemented; unimplemented flows below remain specifications.
+
+## Implemented integration and verification boundary
+
+Verification and independent-review collection now persist
+`uh.decision-receipt.v0` artifacts under the owning mission's
+`decision-receipts/` directory and append `decision.recorded` lifecycle events.
+Receipts distinguish disabled credentials, unavailable providers, malformed
+responses, non-discriminating answers, advisory recommendations, and
+recommendations that changed the consumer's disposition. They retain digests
+rather than raw prompts, source content, provider error messages, or provider
+responses. Human acceptance remains required; a semantic pass does not override a
+deterministic failure, and no result authorizes promotion, scope or spend.
+
+TypeSafe System One questions are atomic. `evaluateThreeVerdict` asks one Noul per
+supplied non-deterministic criterion, points each question at its own `state`
+entry (for example `criteria[2]`), and adds a fixed battery of three report Nouls
+(work incomplete, blocker named, a check claimed passed that the state records as
+failed). The former broad acceptance `choice` and the `tamper` question are gone:
+criteria that already carry a deterministic result are not sent, and `tamper`
+comes from the deterministic Tool Guard, protected-path and diff state the caller
+supplies. The verdict is composed in code — any deterministic failure or any
+per-criterion Noul below `REMEDIATION_THRESHOLD` (0.5) yields `needs-remediation`;
+every criterion at or above `PASS_THRESHOLD` (0.8) with no report flag yields
+`pass`; anything else `needs-attention` — and `confidence` is the minimum distance
+from 0.5 across the asked Nouls, scaled to `[0,1]`.
+
+`evaluateSystemOne` bounds the request with `timeoutMs` (default 10 s) enforced
+through `AbortSignal.timeout`, retries only 429 and 529 up to three attempts
+honoring a numeric `retry-after` in seconds capped at 5 s and otherwise 250 ms
+then 1000 ms, and never throws for provider conditions. It returns a
+discriminated result: `disabled`, `unavailable` (`timeout`, `transport`, `http`),
+`malformed` (`invalid_json`, `invalid_envelope`) or `ok`. The zod-validated
+envelope requires one answer per asked question whose type matches the question
+(noul in `[0,1]`, choice within its declared options with probabilities over
+exactly those options, score within the level range); a missing or mistyped
+answer is an invalid envelope. The requested model can be pinned through the call
+options or `UH_TYPESAFE_MODEL`; the receipt records the versioned model id that
+actually answered with its latency and bounded usage, so a future threshold can be
+tied to the version it was fitted on. Result kinds map onto the existing receipt
+statuses: `disabled` and `unavailable` record `unavailable`, `malformed` records
+`malformed`, and an answer set with no discriminating signal (confidence 0)
+records `uncertain`; none of them is applied.
+
+Provider-free regression coverage exercises timeout, 429 retry with `retry-after`,
+capped and non-numeric `retry-after`, 529 retries with default backoff,
+non-retryable statuses, invalid JSON, a missing answer, a choice outside its
+options, the composition table, the request shape (one question per
+non-deterministic criterion, no `tamper` question), tamper taken from
+deterministic state, disabled credentials, transport failure, malformed success
+responses, receipt validation, the all-abstention `uncertain` receipt, and
+omission of synthetic private-data sentinels. The verification integration also
+exercises a real failing subprocess with a synthetic provider answer: the
+deterministic failure remains failed and raw command output, diff text, and
+workspace paths are excluded from the provider request; only the established
+facts — expected-output paths and statuses and required-check names and statuses
+— reach it as evidence for the criteria the provider is asked about.
+
+`uh verify` now builds the per-criterion projection. Each declared acceptance
+criterion becomes one `state.criteria` entry: a criterion with a `check_command`
+carries its deterministic `status` (passed or failed), `exit_code`, and
+`check_command`, and is never sent to the provider; a criterion without one
+carries its id, description, severity, and an `evidence` object limited to facts
+the harness established — the relative path and verification status of each
+declared expected output, and the names and statuses of the required checks —
+never file contents, diff text, command output, absolute paths, or the mission
+prompt. `tamper` is deterministic: it is true only when the latest run control
+receipt stopped with the `policy` stop code. A deterministic failure stays failed
+regardless of the provider's answer; a missing credential leaves native
+verification untouched, and unavailable, malformed, and non-discriminating
+responses authorize nothing.
+
+The independent-review caller still projects only check dispositions, criterion
+identifiers and descriptions, severities, and review input/claim states, not
+per-criterion evidence states, so its live requests carry the fixed report
+battery alone and it is not yet migrated to the atomic per-criterion seam.
+Criterion descriptions remain task content, not a guarantee of anonymity; these
+projections are not yet a general-purpose privacy filter or a measured
+minimum-token design. Confidence-policy enforcement is still absent (thresholds
+compose the verdict, they do not gate application), and live judgment quality and
+the other decision flows specified below remain unverified or unimplemented.
+
+## Goal
+
+Add a narrow semantic-recommendation layer to Ultimate Harness (UH) without
+turning a model into an authority. TypeSafe System One/JEV may recommend a
+runtime/model route, an acceptance disposition, a review escalation, a scope
+change disposition, or retry/stop. UH remains responsible for deterministic
+eligibility, tool guards, protected paths, resource admission, recovery limits,
+human approval, and artifact publication.
+
+## Ownership and authority
+
+- Telar owns intent, scope, route policy, human gates, stable identity, and
+  cross-project governance. UH consumes only the execution-relevant mission
+  contract and does not mutate Telar state.
+- UH owns live route resolution, adapter execution, supervision, recovery,
+  verification, integration, and promotion mechanics.
+- JEV is a typed semantic recommender. It cannot grant a capability, widen a
+  runtime/model allowlist, increase a budget, bypass a guard, downgrade a human
+  gate, approve a scope expansion, or publish a policy.
+- Target policy (not implemented): missing, failed, malformed, or low-confidence
+  responses must be non-authorizing; current callers do not enforce a confidence threshold.
+- Existing deterministic failures always win. A semantic `pass` cannot turn a
+  failed check, protected-path stop, route mismatch, resource refusal, or
+  required human gate into success.
+
+## Persisted contracts
+
+Proposed, **not accepted by the current mission schema**: an optional `decision_policy` block:
+
+```yaml
+decision_policy:
+  enabled: true
+  min_confidence: 0.75
+  allowed_runtimes: [oh-my-pi, command-code]
+  allowed_models: [openai-codex/gpt-5.6-luna]
+  require_provider_for_route: true
+  require_provider_for_retry: true
+```
+
+The block is additive and strict. `allowed_runtimes` is applied in deterministic
+adapter eligibility. `allowed_models` is the only model set from which a JEV
+recommendation may be applied. Provider requirements are opt-in so legacy
+missions retain their deterministic behavior while progressive missions can
+fail closed when semantic input is required.
+
+`src/schema/decisions.ts` defines `uh.decision-receipt.v0`. A receipt contains
+only decision kind, typed recommendation (when valid), status, authorizer,
+human-required flag, confidence, provider/model, bounded usage and latency,
+input/response digests, reason, state transition, and timestamp. It contains no
+prompt, transcript, raw provider answer, command output, secret, or private
+source document. Receipts live under
+`.harness/missions/<mission>/decision-receipts/`; a compact allowlisted state
+transition is also appended to the mission event stream.
+
+Receipt statuses are:
+
+- `applied`: a recommendation was used only within deterministic eligibility;
+- `advisory`: recorded but no authority-bearing effect was applied;
+- `awaiting-human`: a human decision is still required;
+- `denied`: deterministic policy rejected the recommendation or action;
+- `unavailable`: no configured provider or provider transport failure;
+- `malformed`: the provider response did not satisfy the typed answer contract;
+- `uncertain`: confidence was absent or below `min_confidence`.
+
+## Decision flows
+
+### Runtime/model selection
+
+`uh mission run --auto` first computes `chooseAdapter`, including capability,
+network, context, cost-class, and `allowed_runtimes` filters. JEV may select
+only one of those eligible adapters and, separately, one model in
+`allowed_models`. An explicit CLI model override wins over a semantic
+recommendation. Invalid, uncertain, or unavailable recommendations preserve
+the deterministic incumbent unless `require_provider_for_route` is true, in
+which case launch is blocked before process spawn.
+
+### Acceptance
+
+`uh verify` runs required checks, acceptance checks, output verification, and
+TDD checks first. JEV receives only counts/IDs/statuses/severities and finding
+classes. A semantic remediation or tamper recommendation can harden a
+verification result to failure; semantic pass is advisory and never approves
+promotion. Deterministic check failures and blocked human checks are retained.
+
+### Review/escalation
+
+Independent review collection uses a compact JEV review/escalation question
+against hash-bound evidence summaries. JEV can request escalation or stop, but
+cannot accept a review, promote source work, or downgrade a required gate.
+Review provenance, captured-input hashes, and human acceptance remain
+mechanical requirements.
+
+### Scope-change requests
+
+The CLI exposes `uh mission decision scope-change`. It hashes the requested
+scope and sends only bounded metadata to JEV. Every result is recorded as
+`awaiting-human` (or an explicit unavailable/malformed/uncertain/denied state)
+and `applied: false`; no mission packet, scope, allowlist, or budget changes.
+Human approval must occur through the existing authority surface.
+
+### Retry/stop
+
+Before a bounded native recovery resume, UH checks its existing deterministic
+stop-code/session/max-resume policy. JEV may narrow that action to stop or
+request human deferral; it cannot make a non-resumable stop resumable. A valid
+retry is applied only when deterministic recovery eligibility passes. With an
+optional provider, an unavailable provider leaves the deterministic recovery
+policy as the authorizer and is explicitly recorded; malformed or uncertain
+answers do not retry. `require_provider_for_retry` blocks retry when JEV is
+unavailable.
+
+## Platform and integration constraints
+
+The implementation uses Node 20 Web APIs, existing artifact path guards, and
+existing adapter/recovery seams; it introduces no OS-specific process logic.
+Windows Job supervision, POSIX process-group cleanup, directory/git-worktree
+sandboxes, team resource waves, and container refusal behavior remain outside
+semantic decision code. No Runlayer SDK or cross-project dependency is added.
+
+Runlayer lessons are limited to first-party documentation: identity and policy
+are separate, policy is least-privilege and evaluated before action, human
+approval adds a checkpoint rather than granting access, hooks default
+fail-closed, and bounded telemetry/outputs are appropriate. Those lessons map
+to UH's deterministic guard plus semantic-receipt split; Runlayer does not
+become a UH authority or runtime dependency.
+
+Telar and telar-demo remain read-only references. Telar owns planning,
+identity, route policy, and human authority; UH returns operational receipts.
+The implementation does not create a shared package, copy Telar decisions, or
+let a model act as a cross-project approver.
+
+## Verification obligations
+
+Required future coverage includes allowed-route/model enforcement, low confidence,
+mandatory human scope gating, deterministic-denial precedence, and recovery
+retry narrowing. These are obligations, not completed test or campaign claims.
+Existing provider-free checks are listed at the top of this document. Integrated live acceptance is incomplete. See the
+[roadmap](../ROADMAP.md#governed-decisions) for unresolved policy, transport,
+privacy and evidence-integrity work.
diff --git a/docs/architecture/runtime-adapter-contract.md b/docs/architecture/runtime-adapter-contract.md
index cd3db30..ca80725 100644
--- a/docs/architecture/runtime-adapter-contract.md
+++ b/docs/architecture/runtime-adapter-contract.md
@@ -63,7 +63,7 @@ mission_id: mission-2026-05-13-docs-spine
 runtime:
   adapter_id: hermes
   session_id: hermes-session-abc123
-status: completed # completed | failed | cancelled | blocked
+status: passed # passed | failed | blocked | cancelled
 summary: "Created documentation spine."
 artifacts:
   - path: docs/architecture/runtime-adapter-contract.md
@@ -80,6 +80,125 @@ logs:
   - .harness/missions/mission-.../runtime.log
 ```
 
+## Native process supervision and accounting
+
+OMP and Command Code use UH's shared process runner. Configure limits in the
+adapter's `config.runtime_config.limits` or a mission's
+`runtime_config_overrides.limits`:
+
+```yaml
+limits:
+  timeout_ms: 1800000
+  startup_timeout_ms: 120000
+  stall_timeout_ms: 300000
+  max_output_bytes: 67108864
+```
+
+The combined stdout/stderr capture limit defaults to 64 MiB even when omitted.
+Crossing it stops the owned process tree with `stop_code: output_limit`; the
+crossing chunk and later chunks are not captured. Previously admitted bytes
+remain in the durable logs and adapter output. This is a failed, incomplete run,
+not a successful truncated response. Output-limit failures do not automatically
+resume under the bounded recovery policy.
+
+Windows runs use a native Job guardian that outlives the controller, terminates
+the owned tree on controller loss, and records whether settlement was confirmed.
+A Job provides process ownership and optional committed-memory limits, **not**
+filesystem or network isolation. A stale heartbeat alone does not prove process
+termination. Local cancellation and saved-session recovery reconcile confirmed
+controller-loss receipts with canonical session/result/index artifacts.
+
+On Windows, canonical artifact transactions use a kernel-owned named pipe keyed
+by the canonical local artifact path. Controller death releases ownership without
+PID guessing or stale-lock deletion. Acquisition remains bounded at ten seconds.
+Legacy `.lock` files are retained and block updates pending owner reconciliation;
+do not mix controllers from before and after this lock-protocol change. Other
+platforms retain the bounded filesystem lock and fail closed on abandoned locks.
+These are local-machine locks, not distributed coordination for shared storage.
+
+Hermes CLI execution and OpenSandbox command templates also reuse the owned
+runner for bounded capture and process-tree timeout settlement. On Windows,
+explicit `.js`/`.mjs`/`.cjs` CLI entrypoints execute through Node. OpenSandbox
+templates retain POSIX quoting: UH locates a native shell from Git for Windows,
+or accepts an explicit executable through `UH_OPENSANDBOX_SHELL`; it does not
+interpret those templates with `cmd.exe` or silently choose WSL. Local shell
+fixtures do not establish an OpenSandbox provider or container-isolation claim.
+
+Artifact writes reject observed symlinks and junctions at the target and its
+ancestors through `.harness`, including a run directory replaced after launch.
+These filesystem checks do not replace an OS isolation boundary.
+
+Finalized lifecycle events use the Observatory's existing artifact-age freshness
+policy; they are not permanently labeled fresh. Aging evidence does not turn a
+confirmed failed or completed operation back into an active process.
+
+Recovery accounting follows `runtime-recovery.json` source attempts and counts
+each canonical attempt once within its artifact root, including failed attempts.
+Team parents aggregate each worker's independent canonical artifact root; product
+worktree cleanup does not remove those receipts. Missing attempt receipts or
+unreported counters make the corresponding total unknown, never zero. Mixed
+providers/models can still have a known combined USD amount without a fictitious
+single-model attribution.
+
+Optional `cost_basis` distinguishes `runtime_estimate`, `configured_estimate`,
+`provider_reported`, and `mixed`. Native OMP cost figures are runtime estimates,
+not billing receipts. Observatory labels costs as reported only when explicitly
+backed by `provider_reported`; otherwise known costs are labeled estimated.
+HTTP adapters preserve reported counters in canonical results and leave absent
+usage unknown rather than estimating it from prompt or response length.
+
+### Native route and trust policy
+
+OMP uses a mission's `runtime_config.model` before the adapter's `default_model`.
+A qualified `provider/model` selects both route components; otherwise
+`default_provider` supplies the provider when configured. Use exact native model
+identifiers, not fuzzy aliases, for an assigned route. Text mode is rejected when
+an OMP route is assigned because it cannot supply structured route evidence.
+Command Code requires an explicit model identifier.
+
+The native runner records `expected_route`. An observed assignment mismatch
+stops the owned process tree with `route_mismatch`. Completion without the
+required native route evidence fails with `route_unverified`; requested settings
+and session banners do not count as observations. Neither stop permits saved-run
+recovery. Collectors also reject mismatched or unverified route results.
+
+These checks consume runtime-produced events: they do **not** guarantee that the
+provider's first request has not already happened. They are not a provider
+authorization firewall or a filesystem/network sandbox.
+
+UH adds Command Code's `-t` auto-trust flag only when
+`runtime_config.trust_workspace: true`; it no longer adds it unconditionally.
+Operator-supplied `cli_args` remain part of the trusted executable configuration,
+not an OS security boundary. The unsupported native `worktree_mode` setting is
+rejected by both adapters; workspace isolation belongs to UH's existing backend.
+
+### Configured Command Code prices
+
+Command Code accepts optional `runtime_config.pricing` (also supported through
+mission overrides). Supply explicit USD-per-million rates and the counter overlap
+semantics for the assigned model. The following numbers are synthetic examples,
+not a model catalog or current provider prices:
+
+```yaml
+pricing:
+  model: fixture/model
+  input_usd_per_million: 1
+  output_usd_per_million: 2
+  cache_read_usd_per_million: 0.1
+  cache_write_usd_per_million: 3
+  input_includes_cache_read: true
+  input_includes_cache_write: true
+```
+
+An estimate requires a terminal receipt, complete input/output/cache counters,
+and exactly one observed model matching the price entry. Missing counters,
+truncated output, absent terminal evidence, mixed models, or impossible cache
+overlap leave the estimate unknown. Raw partial usage events remain available.
+No default model prices, cache-write assumptions, or suffix-based model aliases
+are substituted. The rate snapshot is retained in the canonical session/result,
+and computed costs carry `cost_basis: configured_estimate`. Neither this estimate
+nor the router's broad cost classes establish actual billing.
+
 ## Capability model
 
 Adapters should declare capabilities rather than relying on implicit behavior:
@@ -171,7 +290,7 @@ The extractor:
 | Adapter   | Sentinel scan target                                       | Fallback when sentinel absent                                 |
 |-----------|------------------------------------------------------------|---------------------------------------------------------------|
 | codex     | Content of `--output-last-message` file (raw text)         | Raw file content (Codex's native final message)               |
-| oh-my-pi  | Heuristic-extracted last assistant text (JSON-decoded)     | Heuristic last assistant text (unchanged from pre-UH-28)      |
+| oh-my-pi  | Last assistant text decoded from native messages and typed content arrays | Last decoded assistant text |
 | hermes    | Hermes stdout text                                         | Empty file (Hermes does not produce a native summary today)   |
 
 ### Status semantics
@@ -179,12 +298,36 @@ The extractor:
 - The sentinel does NOT change `runtime-result.status`. Status remains
   driven by exit code, runtime-native signals (Codex's
   `--output-last-message` presence, Hermes' `uh.runtime-result.v0`
-  block, oh-my-pi's heuristic finalMessage non-empty check).
+  block, oh-my-pi's native terminal errors and non-empty final message).
 - A mission may emit a runtime-result `status: passed` even when the
   sentinel is omitted, as long as the runtime-native fallback path
   satisfies the adapter's success criteria. The sentinel is the
   *preferred* summary source, not a *required* one.
 
+### Native OMP facts and sandbox artifacts
+
+Sandbox execution and canonical artifact persistence are separate boundaries.
+OMP runs and product diff capture remain in the selected sandbox; the CLI publishes
+run events and terminal artifacts under the host mission so existing readers can
+observe progress before exit. Publishing those facts does not promote product
+changes. An active run takes precedence over an older terminal result in the
+Observatory.
+
+Cancellation settles the selected run's result, runtime session, and index even
+when its event log cannot be appended. Mission mirrors and the latest pointer
+change only when they still identify that run; cancelling an older run preserves
+newer run facts. Cancelled results use `cancelled`, while runtime sessions use
+`failed` with the signal exit code. Initial OMP event persistence failure likewise
+settles writable terminal artifacts without starting the child.
+
+Usage totals come from completed native assistant messages, not repeated progress
+or final-envelope copies. Explicit message identities take precedence over
+timestamp/content deduplication: distinct identities count independently.
+Missing measurements remain unknown. Reported cost is runtime evidence, not
+proof of an invoice or subscription charge. Structured terminal errors fail the
+run even after assistant output. Public failure summaries and Observatory
+projections must not expose raw prompts, tool payloads, credentials, or transcripts.
+
 ### Why a single shared protocol
 
 Before UH-28 each adapter rolled its own final-message capture:
@@ -199,3 +342,41 @@ summary independent of runtime quirks, which:
 3. Lets the harness add structured terminal annotations in the future
    (e.g. `uh-runtime-blockers`, `uh-runtime-next-steps`) using the
    same extraction pattern.
+
+## Independent review packets
+
+`uh mission review-prepare <id> --sources <json> --runtime <runtime> --model <model>`
+emits a normal UH mission without starting a model. Sources are an array of
+`{"missionId":"worker-a","workspaceRoot":"optional explicit output workspace"}`.
+Without an explicit workspace root, preparation uses the source mission's bound
+workspace. It captures the complete canonical contracts and every declared output,
+records missing files, and applies the same nonempty-file, JSON, and completion
+marker checks as ordinary mission verification. Existing packets are not overwritten.
+
+The request and captured files carry SHA-256 digests. Reference paths retain their
+source-workspace meaning; snapshots define the point-in-time review, not subsequent
+source changes. Preparation does not copy credential stores or create a second
+controller. Operators remain responsible for the sensitivity of declared inputs.
+
+Create a separate workspace with
+`uh sandbox create <workspace-id> --mission <review-id> --backend directory`.
+After authorizing the model execution, run the emitted mission with the assigned
+native runtime through ordinary `uh mission run`. OMP and Command Code enforce the
+assigned runtime/model and refuse resumed reviewer sessions. OMP review disables
+Honcho memory, extensions, and skills; Command Code review rejects free-form runtime
+arguments that could override the session contract. The canonical mission must match
+its workspace copy. These are assignment and workspace guards, not OS filesystem or
+network isolation guarantees.
+
+`uh mission review-collect <id>` requires a successful native execution receipt bound
+to the request and an intact request/input snapshot in both canonical and execution
+workspaces. Every source, acceptance criterion, and required check must appear exactly
+once. Missing or invalid outputs require `needs-remediation`; unverified or contradicted
+evidence cannot receive `pass`. Ordinary `mission verify` includes these checks and
+refuses a workspace mutation that removes the review contract or changes its policy.
+
+The resulting `review-assessment.json` is advisory and always records
+`human_acceptance_required: true`. It neither records an owner verdict nor promotes
+source work. A successful review mission means the assessment is valid, not that its
+source work passed review. Local fixture execution verifies this lifecycle without
+claiming model-review quality or provider/OS isolation acceptance.
diff --git a/docs/architecture/runtime-events.md b/docs/architecture/runtime-events.md
new file mode 100644
index 0000000..035a91a
--- /dev/null
+++ b/docs/architecture/runtime-events.md
@@ -0,0 +1,57 @@
+# Native runtime events
+
+Ultimate Harness supervises native events emitted by each runtime. Lifecycle fields—not arbitrary model text or tool output—drive readiness, progress, policy stops and completion. The examples below are illustrative contract shapes; they are not transcripts or acceptance records.
+
+## oh-my-pi
+
+| Event or fact | Native shape | Supervision behavior |
+|---|---|---|
+| Tool start | `{"type":"tool_execution_start","toolCallId":"<call>","toolName":"bash","args":{"command":"<command>"}}` | Track the call as in flight, update readiness/progress, and evaluate protected paths. Arguments are in `args`; normalized `input` is also supported. |
+| Tool end | `{"type":"tool_execution_end","toolCallId":"<call>","isError":true,"result":{"content":[{"text":"CONTRACT: <reason>"}]}}` | Clear the in-flight call. An error result prefixed with `CONTRACT:` represents a guard denial and counts toward `max_denials`. |
+| Terminal | `{"type":"agent_end","messages":[]}` | Record native completion, inspect terminal failure facts and require a valid nonempty final-message sentinel. |
+| Usage | Native assistant/message usage fields | Preserve measured input, output and cache counters. Missing or incomplete values remain unknown; repeated envelopes must not double-count a message. |
+
+OMP tool-result messages are not interchangeable with assistant failure messages. Arbitrary response identifiers, quoted errors and reasoning payloads must not be treated as authentication failures.
+
+## Command Code
+
+| Event or fact | Native shape | Supervision behavior |
+|---|---|---|
+| Tool queued | `{"type":"event","event":{"type":"tool_queued","toolCallId":"<call>","toolName":"shell_command","input":{"command":"<command>"}}}` | Track the call and evaluate protected paths. Tool arguments are in `input`. |
+| Pre-tool hook | `{"type":"event","event":{"type":"tool_hooks","toolCallId":"<call>","phase":"pre","outcome":{"kind":"block","text":"<reason>"}}}` | Distinguish an observed hook invocation from missing hook evidence. |
+| Hook denial | `{"type":"event","event":{"type":"tool_hook_blocked","toolCallId":"<call>","hookOutput":"<reason>"}}` | Clear the call and count the denial once. |
+| Route | `{"type":"event","event":{"type":"model_request_start","model":"<provider>/<model>"}}` | Compare observed and configured routes. Unattested or mismatched routes fail rather than silently fall back. |
+| Usage | `{"type":"event","event":{"type":"turn_end","usage":{"inputTokens":11,"outputTokens":3,"cacheReadTokens":5,"cacheWriteTokens":1}}}` | Aggregate reported counters; absent/invalid values remain unknown. Cost requires its own provenance. |
+| Terminal | `run_end` followed by `result` | Evaluate native failure fields and the final-message sentinel. |
+
+Native permission refusal and a UH guard denial are distinct. Guarded print-mode execution requires the native permission mode selected by the adapter plus evidence that the hook actually ran. A runtime flag alone is not enforcement evidence.
+
+## Claude Code
+
+The adapter consumes stream-JSON envelopes and normalizes their nested events for supervision. It observes native model identity, tool activity and terminal results. Native `message_start`, `message_delta` and `message_stop` events provide fallback usage when execution ends without a terminal result. An unfinished message cannot establish complete output or total-token counters.
+
+The optional live-usage callback publishes available counters in the canonical runtime-control receipt. Reporting usage does not enforce a token budget. Model alias compatibility, native-denial attribution, inherited coordinator context and truncated-stream accounting remain documented [runtime work](../ROADMAP.md#runtime-reliability-and-accounting).
+
+## Shared supervision contract
+
+`RuntimeSupervision.observe` normalizes native event objects and:
+
+- treats `tool_queued`, `tool_execution_start`, and `tool_running` as tool-start events;
+- reads arguments from `input` or `args`, with a flat `command` fallback;
+- evaluates protected paths on the first tool event for a call identifier;
+- treats `tool_execution_end` and `tool_completed` as tool-result events;
+- recognizes native denial events and prefixed contract errors;
+- recognizes `run_end`, `result`, and `agent_end` as native terminal events;
+- excludes arbitrary text deltas from progress and nested tool-result messages from native terminal-failure classification.
+
+A terminal event alone does not establish success. Completion also requires no native failure, supervision stop, cancellation, timeout, spawn failure or captured error, plus the adapter's final-message contract. An exit code is one fact: a nonzero launcher exit after otherwise valid native completion may be retained with an explicit ignored-exit reason; an exit before valid completion remains a failure.
+
+## Reproducible checks
+
+- `tests/oh-my-pi.test.ts`, `tests/command-code.test.ts`, and `tests/claude-code.test.ts` cover adapter interpretation.
+- `tests/runtime-supervision.test.ts` covers shared lifecycle transitions and policy stops.
+- `tests/runtime-process.test.ts` exercises owned child-process lifecycle and control-receipt persistence.
+- [Supervisor-loop smoke](../runbooks/supervisor-loop-smoke.md) exercises the built CLI using deterministic runtime fixtures.
+- [Tool-guard smoke](../runbooks/tool-guard-smoke.md) exercises the hook and extension interfaces.
+
+Fixtures must emit the native shapes of the runtime being modeled. Synthetic events establish parser/supervisor behavior, not live provider compliance. Keep generated transcripts and local execution records outside the public source tree.
diff --git a/docs/architecture/session-templates.md b/docs/architecture/session-templates.md
new file mode 100644
index 0000000..128949e
--- /dev/null
+++ b/docs/architecture/session-templates.md
@@ -0,0 +1,175 @@
+# Session Templates: Tiered Execution Configurations
+
+## Overview & Purpose
+
+Every mission packet in Ultimate Harness requires concrete runtime execution parameters: the target adapter and model, reasoning level, turn and time limits, stall and thinking budgets, recovery policy, and tool guard defaults. Previously, these choices were configured by hand inside individual mission files or injected via ad-hoc CLI arguments.
+
+Session templates introduce reusable, tiered execution configurations stored under `.harness/templates/*.yaml`. They provide:
+- **Reproducible tiers**: Standardized execution profiles categorized as `low-cost`, `balanced`, or `exhaustive`.
+- **Reusable configurations**: Eliminate boilerplate repetition across missions while maintaining auditability.
+- **Run index observability**: Record which template was adopted and which template keys were overridden by the mission, allowing outcome comparison across templates.
+- **Promotion of proven configurations**: Identify high-performing configurations from historical runs and promote them across the project.
+
+## Templates vs. Workflow Profiles
+
+It is essential to distinguish between workflow profiles and session templates:
+
+| Concept | Scope | Responsibility | Example |
+| :--- | :--- | :--- | :--- |
+| **Workflow Profile** | Mission Structure | Defines **what phases** a mission executes and in what sequence. | `spec-first-feature` (spec → implement → verify) |
+| **Session Template** | Attempt Execution | Defines **how an attempt** within a phase is executed by the adapter. | `balanced` (Hermes, 15 turns, 300s timeout, single resume) |
+
+A workflow profile is orthogonal to a session template: any mission regardless of its workflow profile can adopt any session template according to cost, time, and safety budgets.
+
+## File Format (`uh.session-template.v0`)
+
+Session templates are stored as YAML documents under `.harness/templates/<id>.yaml` adhering to the strict schema `uh.session-template.v0`.
+
+```yaml
+schema_version: uh.session-template.v0
+id: balanced
+title: Balanced Standard Execution
+tier: balanced
+containment: standard
+adapter: hermes
+runtime_config_overrides:
+  model: "<provider/model>"
+  thinking: low
+limits:
+  max_turns: 15
+  timeout_ms: 300000
+  stall_timeout_ms: 60000
+recovery:
+  max_resumes: 1
+  notes: Single resumption on stall or timeout before terminal failure.
+guard:
+  write_roots:
+    - src
+    - tests
+  deny_network_clients: true
+attempts: 1
+notes: Default balanced configuration providing standard turn limits and single-resume recovery.
+```
+
+### Schema Properties
+
+- **`schema_version`** (`literal "uh.session-template.v0"`): Schema format version identifier.
+- **`id`** (`safe identifier`): Safe alphanumeric slug (`^[a-zA-Z0-9][a-zA-Z0-9._-]*$`, excluding `.` and `..`).
+- **`title`** (`string`): Human-readable name of the configuration.
+- **`tier`** (`"low-cost" | "balanced" | "exhaustive"`): Resource and effort tier.
+- **`containment`** (`"standard" | "strict"`, default `"standard"`): Security and isolation tier.
+- **`adapter`** (`enum`): One of the project's supported team adapter IDs (`hermes`, `codex`, `oh-my-pi`, `hermes-proxy`, `openrouter`, `anthropic`, `pi`, `command-code`, `claude-code`).
+- **`runtime_config_overrides`** (`record`, default `{}`): Model parameters and adapter-specific flags (e.g. `model`, `thinking`, `temperature`).
+- **`limits`** (`RuntimeLimitsSchema without memory_mb`, default `{}`): Enforced runtime constraints:
+  - `max_turns`
+  - `timeout_ms`
+  - `stall_timeout_ms`
+  - `max_thinking_ms`
+  - `max_denials`
+  - `max_repeated_failures`
+  - `max_output_bytes`
+  - `protected_paths`
+  *(Note: `memory_mb` is omitted; memory governance is managed by team resource limits).*
+- **`recovery`** (`RuntimeRecoveryPolicySchema`, optional): Recovery rules on failure or deadline:
+  - `max_resumes`
+  - `notes`
+  - `on_deadline` (`grace_turns`, `grace_timeout_ms`)
+- **`guard`** (`ToolGuardFieldsSchema`, optional): Tool safety guard properties (`write_roots`, `deny_git_mutations`, `deny_package_installs`, `deny_network_clients`, `allow_native_subagents`, `agent_clients`).
+- **`attempts`** (`integer 1..8`, default `1`): Number of independent parallel attempts planned for exhaustive search.
+- **`notes`** (`string`, optional): Operator and architectural notes.
+
+## Precedence & Merge Semantics
+
+When `applySessionTemplate(mission, template)` combines a mission document with a template, values are resolved with the rule: **Most specific wins**:
+
+$$\text{Mission explicit values} \succ \text{Session template values} \succ \text{Harness defaults}$$
+
+### Merging Rules
+
+1. **Top-Level Primitives (`adapter`, `attempts`)**:
+   - If the mission explicitly specifies the field, the mission value wins.
+   - Otherwise, the template value is applied.
+2. **Top-Level Record Merges (`runtime_config_overrides`, `limits`, `recovery`)**:
+   - Merged shallowly key-by-key.
+   - Keys defined explicitly in the mission override corresponding keys from the template.
+   - Keys present only in the template are incorporated into the mission.
+3. **Tool Guard (`guard`)**:
+   - Merged field-by-field (`deny_git_mutations`, `deny_network_clients`, etc.), with one critical security invariant:
+   - **`write_roots` is never widened**:
+     If the mission defines `write_roots` (even if empty `[]`), the template's `write_roots` are completely ignored. The template cannot expand the write boundaries established by the mission author.
+     If the mission does not specify `write_roots`, the template's `write_roots` are applied.
+4. **Immutability**:
+   - `applySessionTemplate` never mutates the input mission object; it returns a new document.
+
+## Strict Containment
+
+When a template specifies `containment: "strict"`, it enforces strict sandboxing rules designed for untrusted execution or high-risk tasks.
+
+Applying a strict-containment template to a mission is refused with an error identifying the violated rule if the resulting configuration:
+1. **Has no explicit `guard.write_roots`**:
+   Refused if `write_roots` is undefined or an empty list.
+2. **Specifies a write root of `"."`**:
+   Refused if any write root is `.` (a sandbox must not target the entire repository root).
+3. **Specifies an absolute write root**:
+   Refused if any write root is an absolute filesystem path (e.g. `/tmp`, `C:\sandbox`).
+4. **Allows native subagents**:
+   Refused if `allow_native_subagents === true`. Runtimes in strict containment must not spawn unmonitored subagents.
+5. **Permits network clients**:
+   Refused if `deny_network_clients === false`. Network access from client tools must remain disabled.
+
+## Run Index & Outcome Observability
+
+When a template is applied, the harness helper `describeAppliedTemplate(mission, template)` produces an applied template descriptor:
+
+```typescript
+interface AppliedTemplateDescription {
+  template_id: string;
+  tier: "low-cost" | "balanced" | "exhaustive";
+  containment: "standard" | "strict";
+  overridden_by_mission: string[];
+}
+```
+
+The `overridden_by_mission` list records which top-level template blocks (`adapter`, `runtime_config_overrides`, `limits`, `recovery`, `guard`, `attempts`) the mission explicitly overrode. This metadata is indexed in `runs/index.json` across executions, enabling operators to:
+- Correlate pass/fail rates and token spend against tiers (`low-cost` vs `balanced` vs `exhaustive`).
+- Identify common overrides that indicate when a base template's limits or settings need tuning.
+- Systematically promote reliable configurations into standard templates.
+
+## Adopting a template from the CLI
+
+`uh mission run` and `uh mission dry-run` accept `--template <id>`. The template is loaded from `<root>/.harness/templates/<id>.yaml` and applied to the mission with `applySessionTemplate`, so mission values always win over template values.
+
+The applied result is translated into the extra runtime-config overrides the run path already accepts: the applied `runtime_config_overrides` keys, plus `limits` and `recovery` when stated. An explicit `--runtime-config-overrides <json>` is spread on top, so the command line wins over both the mission and the template. Fleet admission runs after the template is applied, so a template cannot route a run around spend authorization.
+
+When `--runtime` is omitted, the template's `adapter` is used. When `--runtime` is given and differs from the template's adapter, the run is refused with a message naming both. `--auto` cannot be combined with `--template`.
+
+Refusals are reported as `[BLOCKED]` with exit code 2 before any runtime is spawned:
+- An unknown or invalid template.
+- A strict-containment violation (see above).
+- A conflicting `--runtime`.
+
+Dry-run prints a `Template:` line naming the template id, tier, containment, and the keys the mission overrode, plus the resolved effective overrides.
+
+## Recording the adopted template
+
+When a run adopts a template, the CLI writes `session-template.json` into the run directory (`.harness/missions/<mission>/runs/<run_id>/`), next to the adapter's `tool-guard.json`. The file contains exactly the `describeAppliedTemplate` record:
+
+```json
+{
+  "template_id": "balanced",
+  "tier": "balanced",
+  "containment": "standard",
+  "overridden_by_mission": ["limits"]
+}
+```
+
+`indexRuns` reads this file into the run record's `template_id` and `tier` fields and leaves both undefined when a run did not adopt a template. `uh observatory runs --group-by` accepts `template` (grouping by `template_id`) and `tier` in addition to `runtime`, `model`, `workflow_profile`, and `stop_code`.
+
+
+## Resilient Template Loading
+
+The loader function `loadSessionTemplates(root)`:
+- Scans `.harness/templates/*.yaml` and `*.yml`.
+- Validates each file against `SessionTemplateSchema`.
+- Skips invalid files, reporting the error and path via a warning without halting execution or affecting other valid templates.
+- Returns valid templates sorted deterministically by `id`.
diff --git a/docs/architecture/verification-and-promotion.md b/docs/architecture/verification-and-promotion.md
index c93faf7..c63bcc9 100644
--- a/docs/architecture/verification-and-promotion.md
+++ b/docs/architecture/verification-and-promotion.md
@@ -57,7 +57,7 @@ schema_version: uh.promotion.v0
 mission_id: mission-2026-05-13-docs-spine
 sandbox_id: sandbox-abc123
 decision: promoted
-approved_by: Lalo
+approved_by: reviewer
 promoted_at: 2026-05-13T00:00:00Z
 changes:
   - docs/README.md
@@ -67,7 +67,8 @@ audit_event_id: audit-...
 
 ## Promotion policies
 
-- `human-approved` — default. Requires explicit human approval.
-- `review-agent-approved` — allowed only for low-risk generated docs or tests when configured.
-- `auto-promote-on-green` — deferred; too risky for MVP.
-- `manual-only` — harness records evidence but a human applies changes.
+- `human-approved`: default. Requires explicit human approval and a manual `uh promote`.
+- `auto-on-verify`: a passed `uh verify` invokes promotion without a human step by design of this policy.
+- Any other value, including a typo, behaves as `human-approved` and does not auto-promote.
+
+`approved_by` is a free-text name today. The harness requires a non-empty value but does not validate an identity.
diff --git a/docs/configuration.md b/docs/configuration.md
index 406e840..b715b8a 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -7,12 +7,23 @@ Ultimate Harness keeps durable project state in `.harness/` and keeps secrets ou
 `uh init` writes:
 
 - `.harness/project.yaml`
-- `.harness/adapters/*.yaml`
 - `.harness/workflows/*.yaml`
 - `.harness/skills/index.yaml`
 - `.harness/sandboxes/index.yaml`
 - `.harness/audit/events.ndjson`
 
+`uh init` creates the `.harness/adapters/` directory but does not write adapter manifests. Use `uh adapter add <runtime>` to write `.harness/adapters/<runtime>.yaml`.
+
+## Audit and Decision Logs
+
+The harness has three distinct durable log locations:
+
+| Path | Receives |
+| --- | --- |
+| `.harness/audit/events.ndjson` | Project-level events, including the `project.init` event written by `uh init`. |
+| `.harness/audit.log` | Text lines appended when `uh mission verdict` records a manual verdict. |
+| `.harness/missions/<mission-id>/events.ndjson` | Mission-scoped lifecycle events, including promotion events appended by `uh promote`. |
+
 Validate state with:
 
 ```sh
@@ -39,6 +50,30 @@ Use `.env.example` as a placeholder reference only. Real values should come from
 | `HONCHO_ENABLED` | Force the Honcho memory extension on/off (`true`/`false`). Defaults to on when a key is resolvable. |
 | `HONCHO_SEARCH_LIMIT` | Max snippets returned by `honcho_search`. Defaults to 8. |
 | `HONCHO_TOOL_PREVIEW_LENGTH` | Per-snippet char cap for `honcho_search`. Defaults to 500. |
+| `TYPESAFE_API_KEY` | Enables TypeSafe System One judgments in verification and independent-review collection. Recommendations can harden a result but cannot override deterministic failure or authorize promotion. See [progressive decisions](./architecture/progressive-decisions.md) for limitations. |
+
+## Operator Price Table
+
+`.harness/prices.yaml` (schema `uh.prices.v0`) is the operator-maintained price table the harness uses to estimate a run's cost when its native event stream reports token counts but no price. The harness never ships or invents a price: a model missing from the table keeps its cost unknown, with the reason naming the model and this file.
+
+```yaml
+# .harness/prices.yaml
+schema_version: uh.prices.v0
+models:
+  # Model ids match case-insensitively against the model the native stream reports.
+  # <provider>/<model-id>:
+  #   input_usd_per_million: <USD per million input tokens>
+  #   output_usd_per_million: <USD per million output tokens>
+  #   cache_read_usd_per_million: <USD per million cache-read tokens>
+  #   cache_write_usd_per_million: <USD per million cache-write tokens>
+  #   source: <where these numbers came from, e.g. the provider's published list price and the date you verified it>
+```
+
+- All four rate fields are USD per million tokens.
+- `source` is required and records the provenance of the numbers; fill it in.
+- A missing or malformed table prices nothing: runs whose cost cannot be resolved stay unknown rather than being estimated from a guessed rate.
+- A stream whose token counters are partially reported is never priced from the partial measurement.
+- Command Code runs price from their native `model_request_end` usage; team admission (`run-team`) treats an estimated cost the same as a reported one when reserving team budget.
 
 ## Runtime Config Overrides
 
diff --git a/docs/handbook/README.md b/docs/handbook/README.md
new file mode 100644
index 0000000..7b267cd
--- /dev/null
+++ b/docs/handbook/README.md
@@ -0,0 +1,47 @@
+# Operator handbook
+
+This handbook is the reference an operator — or an orchestrating agent — reads before driving Ultimate Harness. It is written for someone about to dispatch work, watch it run, stop it, verify it, review it, integrate it, and prove it landed. Every command shown here exists in `src/cli.ts`, and every page names the files in this checkout that its facts come from. No page documents behaviour that cannot be found in those sources.
+
+## What Ultimate Harness is
+
+Ultimate Harness (UH) is a runtime-agnostic discipline layer for agentic software development. It is not a coding agent. It is the control plane that keeps work auditable, reproducible, and safe to promote into a real codebase regardless of which coding agent did the work. The agent runtime is a swappable backend (Hermes, Codex, Command Code, oh-my-pi, and others); the discipline — specs, mission packets, sandbox boundaries, verification artifacts, audit trail, human approval gates — is not.
+
+Principles that shape everything an operator does:
+
+- **Schemas, not conventions.** Every persisted artifact (`.harness/` YAML, JSON, and NDJSON on disk) is validated against a versioned Zod schema. There is no daemon: anything that reads or mutates state is a short CLI invocation.
+- **No hidden state.** If `uh status` does not see it on disk, it does not exist.
+- **Explicit human gates.** Sandbox work never becomes canonical work without a recorded promotion decision. Verification can run automatically; promotion never does.
+- **Fail loudly.** A missing runtime, malformed manifest, or wrong configuration fails with the specific path, id, or field at fault. There are no silent fallbacks.
+
+Sources: `docs/VISION.md`, `docs/architecture/overview.md`.
+
+## The operating loop
+
+An operator drives UH as a loop. Each stage below names the handbook page that covers it.
+
+1. **Dispatch.** Write a mission packet (`uh.mission.v0`) and execute it with `uh mission run`, or fan a team mission out into per-worker packets with `uh mission run-team`. Every run and dry-run prints a `Sandbox:` line naming where execution goes before anything is spawned. → [slices-and-teams.md](./slices-and-teams.md)
+2. **Guard.** A per-tool-call contract boundary — write roots, git, package, network, and agent-client denials — is resolved from the mission's `guard` block and enforced through runtime hooks. Denials are recorded and counted against the run's denial budget. → [fleet.md](./fleet.md), [packet-rules.md](./packet-rules.md)
+3. **Supervise.** The harness supervises each attempt independently of model compliance: turn, time, output, denial-budget, and repeated-failure limits; stall detection; protected-path policy. When a limit is reached, the run stops with a structured stop code recorded in `runtime-control.json`. → [fleet.md](./fleet.md)
+4. **Watch and stop.** `uh ps` lists every run discoverable from the project root with a liveness verdict (`live`, `orphaned`, `stale`, `settled`). `uh kill` stops runs and proves they are dead. `uh mission cancel` cancels an owned local run by request. → [run-control.md](./run-control.md)
+5. **Settle.** `uh mission run` always prints, as the last line of stdout, a machine-parseable settlement line `UH_RESULT <single-line-json>` with `mission_id`, `run_id`, `runtime`, `status` (`passed`, `failed`, `blocked`, `cancelled`), optional `stop_code`, `exit_code`, and `run_dir`. Exit codes are deterministic: `0` passed, `1` failed, `2` blocked, `130` cancelled. Sources: `docs/runtime-targets.md`.
+6. **Verify.** `uh verify <mission-id>` runs the mission's required checks and acceptance criteria and writes `verification.yaml`. Sources: `docs/architecture/mission-packet-schema.md`.
+7. **Review.** Independent review is an advisory round trip: prepare a review packet, run a reviewer in a sandbox bound to it, and collect a validated recommendation with three possible verdicts (pass / needs-attention / needs-remediation). It never grants acceptance by itself. → [review-round-trip.md](./review-round-trip.md)
+8. **Integrate.** A team mission's leader merges worker branches mechanically and invokes verification; no leader model is invoked. Eligible stopped workers can contribute verified work without being merged as-is. → [slices-and-teams.md](./slices-and-teams.md)
+9. **Prove.** Acceptance evidence is real-runtime evidence, registered per capability and classified by freshness and outcome at the current harness commit. `uh promote` records the human promotion decision; it is never automatic. → [acceptance.md](./acceptance.md)
+
+## The pages
+
+| Page | Covers | Primary sources |
+|---|---|---|
+| [run-control.md](./run-control.md) | `uh ps`, `uh kill`, `uh mission cancel`, liveness verdicts, orphans, team cascade | `docs/runbooks/run-control.md`, `src/harness/live-runs.ts` |
+| [slices-and-teams.md](./slices-and-teams.md) | Writing mission packets, team missions with per-worker packets, resource waves, the unknown-cost admission rule, salvage of stopped workers | `docs/architecture/mission-packet-schema.md`, `docs/runtime-targets.md` |
+| [review-round-trip.md](./review-round-trip.md) | `review-prepare`, sandbox create, run, `review-collect`, what the validator requires, the observations outlet | `docs/runbooks/independent-review.md`, `src/harness/independent-review.ts` |
+| [acceptance.md](./acceptance.md) | The capability registry, running one capability or the fleet campaign, evidence records, freshness per commit, what "proven" means | `docs/runbooks/acceptance.md`, `acceptance/registry.yaml` |
+| [fleet.md](./fleet.md) | The command-code adapter, session templates and tiers, guard classes and their exact denial texts | `docs/tool-guard.md`, `docs/architecture/session-templates.md`, `docs/runtime-targets.md` |
+| [packet-rules.md](./packet-rules.md) | Rules for packets that survive the guard and the reviewer | `docs/architecture/mission-packet-schema.md`, `docs/tool-guard.md`, `docs/runbooks/independent-review.md`, `docs/runtime-targets.md` |
+
+## Conventions used in this handbook
+
+- Commands are shown as they would be typed at a project root. Placeholders such as `<mission-id>`, `<run-id>`, or `<fresh-workspace>` stand for values you choose; none refer to a real run.
+- `[BLOCKED]` marks a refusal that exits with code `2` before a runtime is spawned. `[FAIL]` marks a command error that exits non-zero.
+- Sandbox work is never run in the project root implicitly: `uh mission run` refuses to fall back to the root silently when sandbox routing was requested and no sandbox is bound. Root execution is only reachable through an explicit `--no-sandbox`.
diff --git a/docs/handbook/acceptance.md b/docs/handbook/acceptance.md
new file mode 100644
index 0000000..8cc3862
--- /dev/null
+++ b/docs/handbook/acceptance.md
@@ -0,0 +1,65 @@
+# Acceptance
+
+Acceptance evidence is real-runtime evidence, separate from test and fixture status. One small mission per mechanism is registered in `acceptance/registry.yaml` (schema `uh.acceptance-registry.v0`); running a capability executes its mission for real and records what actually happened. Sources: `docs/runbooks/acceptance.md`, `acceptance/registry.yaml`, `src/harness/acceptance.ts`, `src/cli.ts`.
+
+## The registry
+
+Each registry entry declares:
+
+- `title`, `capability`, `mission` (path to the mission file under `acceptance/missions/`), and `shape` (`single` or `team`);
+- `runtime` and optionally `model` — registry-declared models mean no `--model` override is needed for those entries;
+- `expected` — the facts a passing run must show (status, stop codes, worker states, declared outputs, required records, and `fact_sources` selectors described below);
+- `freshness_days` — how long passing evidence stays fresh (30 days across the current registry);
+- optional `support_shim` (a directory prepended to the child process PATH for that run only, recorded as `shim_on_path: true`), and `real_mission: not_applicable` with a `reason` for fixture-only mechanisms.
+
+The registry's `expected.fact_sources` selects, per field, whether the expected fact is compared against the first or last sorted attempt of the run; it is not itself compared.
+
+## Running one capability or the fleet campaign
+
+Build the CLI, configure an installed adapter, and select a permitted model before running against a fresh workspace. `uh acceptance run` takes one capability at a time, so a campaign iterates the chosen runtime's entries against one fresh workspace. The command below invokes live runtimes and can incur provider charges:
+
+```sh
+# One capability.
+uh acceptance run <capability> --workspace <fresh-workspace>
+
+# Every registered capability.
+uh acceptance run --all --workspace <fresh-workspace> --model <permitted-model>
+```
+
+Options: `--runtime` and `--model` override the registry runtime and model; `--keep` retains the run workspace. Each run materializes a snapshot of the harness under `<workspace>/.acceptance-runtime` (dist and src, plus a junction to the nearest `node_modules` found by walking up from the harness root). When no `node_modules` exists anywhere above the root, the run refuses loudly with exit `2` and names the searched path instead of spawning a snapshot CLI that dies on a missing module.
+
+The live fleet campaign in this checkout targets the command-code fleet: every capability has a `command-code` registry entry — the seventeen `<capability>-cmdc` ports (model carried by the registry) plus the three `G1-cmdc-*` entries. The exact campaign command iterates those entries, one `uh acceptance run` per capability, against one fresh workspace; the entry notes flag the special cases (`R10-stall-cmdc` is fixture-only and prints `FIXTURE` without running, `G2-cmdc` hits its denial budget through real guard denials, and `S3-unknown-cost-cmdc` strips runtime usage so admission is refused on unknown cost).
+
+## Inspecting results
+
+```sh
+# Classify evidence by freshness and outcome.
+uh acceptance status --json
+
+# Generate a local human-readable report.
+uh acceptance report
+```
+
+Canonical runtime artifacts are stored in the selected workspace; generated evidence is written under ignored `acceptance/evidence/<capability>/`. Keep execution records in private local or CI storage, not in the public source repository. Review any generated report before publication: local run identifiers, timestamps, paths, transcripts and account information are not public documentation. Run the campaign at one harness commit before evaluating freshness; the committed-report drift check renders the report against an empty evidence root, so local campaign records never fail the check.
+
+## Evidence records
+
+Every evidence record includes actual `fact_sources`, the mission CLI outcome as `cli: { exit_code, stderr_tail, stdout_tail }`, and the run's outcome. A run that produced no observed status keeps that fact visible instead of fabricating `status: failed`, and its FAIL line ends with the first line of the CLI stderr so the cause is readable without hand-running the snapshot CLI.
+
+When a capability fails, read the failed evidence and its artifact root first — run directories, the tool-guard log, `fact_sources` — before changing anything: expectations describe the mechanism, so a failure usually means the runner or the budget mis-modeled reality, not that the expectation should move. A failed real run is retained as failed evidence; expectations must not be changed merely to make a run pass.
+
+## Freshness per commit
+
+`uh acceptance status` classifies every capability by comparing its latest evidence with the current harness commit and the registry's `freshness_days`:
+
+| State | Meaning |
+|---|---|
+| `unproven` | No evidence exists for the capability. |
+| `failed` | The latest evidence records a failed outcome. |
+| `stale` | The evidence was recorded at a different harness commit than the current one, or its age exceeds `freshness_days`. |
+| `proven` | Fresh passing evidence at the current commit, within the freshness window. |
+| `fixture_only` | A `real_mission: not_applicable` capability without evidence; attempted fixture missions retain their actual outcome. |
+
+## What "proven" means
+
+A capability without fresh passing real-runtime evidence is **unproven**, whatever the test suite or fixture smoke says. Proven means: a real run of the registered mission, on a real installed adapter, produced evidence matching the registry's expected facts, at the current harness commit, within the freshness window. A clean checkout ships no local execution records, so its report does not claim live proof.
diff --git a/docs/handbook/fleet.md b/docs/handbook/fleet.md
new file mode 100644
index 0000000..091ba6f
--- /dev/null
+++ b/docs/handbook/fleet.md
@@ -0,0 +1,60 @@
+# Fleet: adapters, tiers, and the guard
+
+The command-code adapter, session templates and their tiers, and the tool-guard denial classes with what each denial text means. Sources: `docs/tool-guard.md`, `docs/architecture/session-templates.md`, `docs/runtime-targets.md`, `src/cli.ts`.
+
+## The command-code adapter
+
+Command Code (`command-code`) is a local CLI adapter that runs missions in print mode, where no operator can answer a permission prompt. Two facts follow from print mode:
+
+- A mission must declare a `guard` block or an explicit `runtime_config.permission_mode`. Without either, planning refuses before process spawn — including for custom CLI commands.
+- When a guard policy is present, UH resolves `permission_mode: "guard"`, appends `--yolo`, and leaves all authorization to the `PreToolUse` hook and the guard. A mission may instead set `runtime_config.permission_mode: "yolo"` explicitly; this also appends `--yolo` without installing a guard. The durable `runtime-control.json` receipt records `permission_mode` as `guard`, `yolo`, or explicit `prompt`.
+
+`runtime_config.role` defaults to `worker`. An orchestrator mission must still declare a guard; the guard artifact then carries `controller_commands: true`, and the hook admits only harness controller commands while agent CLIs, native sub-agent tools, and `--force`-style invocations stay denied. The orchestrator prompt ends with a fixed delegation paragraph: delegate only through harness commands, give every delegated worker its own mission packet and bound sandbox, wait for a worker settlement line before depending on its output, and never do a worker job yourself. Fleet admission reads `role`, so a model authorized only as `worker` is refused as an orchestrator.
+
+Every adapter writes the same artifact set (`runtime-session.yaml`, `events.ndjson`, `runtime-result.yaml`, `runtime-final.txt`, `diff.patch`); command-code additionally writes the guard artifacts when a guard is active (below). Command-code is one of the runtimes that supports bounded native session recovery. Inspect the planned command without running anything with `uh mission dry-run`, and check an adapter is installed and configured with `uh adapter check <runtime>`.
+
+### Guard artifacts and fail-closed behaviour
+
+When a guard is active, each run directory gets:
+
+- `tool-guard.json` (schema `uh.tool-guard.v0`): the worker root, the protected paths, and the resolved policy fields (`write_roots`, `deny_git_mutations`, `deny_package_installs`, `deny_network_clients`, `agent_clients`).
+- `tool-guard.log`: newline-delimited JSON, one line per hook invocation — denials and allowed calls alike — each with `ts`, `tool`, `class`, `target`, and `reason`.
+
+For guarded command-code runs, the supervisor requires the first completed tool call to have matching guard-log evidence. If it does not, it stops with `stop_code: "policy"` and reason `Guard hook did not run; refusing to continue with permissions enabled`, and the run records `guard_armed: false`; a guarded run records `guard_armed: true` once the first completed call has matching evidence. The guard is an enforcement seam, not an operating-system sandbox: an unmanaged process that bypasses the runtime event or hook seam is outside this mechanism.
+
+## Guard classes and denial texts
+
+The guard is a per-tool-call contract boundary. It is path-only and content-blind: it classifies the requested tool and command, resolves target paths, and compares those paths with the configured write roots and protected roots. It does not inspect file contents, diff bodies, replacement text, or report text — an allowed output may quote a forbidden path without attempting to write there.
+
+Every denial reason begins with `CONTRACT:` and ends with the same instruction:
+
+> Do not retry this by another route; record it in your final message and continue with the rest of the task.
+
+| Class | Trigger | What the text directs |
+|---|---|---|
+| `write_outside` | A write-class tool or shell write target is outside `write_roots`. | "write only under \<roots\>. Put the file under \<first write root\> instead." |
+| `git_mutation` | A shell command contains a Git mutation verb (`commit`, `checkout`, `stash`, `reset`, `add`, `merge`, `rebase`, `push`, `switch`, `restore`, `clean`). | "no git mutations; the harness commits for you. Use read-only git (status, diff, log) or skip it." |
+| `delete_outside` | A delete tool or shell delete targets outside `write_roots`, or a delete target cannot be resolved. | "deletes and process kills only inside \<roots\>." |
+| `kill_or_format` | The command contains `taskkill`, `stop-process`, `kill -9`, or `format <drive>:`. | Same deletion/process text as `delete_outside`. |
+| `package_install` | A command invokes `pip`, `pip3`, `uv`, `conda`, `npm`, `pnpm`, or `yarn` with `install`, `add`, or `i`. | "no package installs. Use what is installed; if a dependency is missing, end with BLOCKED: \<dependency\>." |
+| `network_client` | A command invokes `curl`, `wget`, `invoke-webrequest`, `iwr`, `invoke-restmethod`, or `irm` while network denial is enabled. | "no network or agent clients. Everything you need is on disk; if it is not, end with BLOCKED: \<what is missing\>." |
+| `agent_client` | A command would start a configured agent client, or a UH command that starts paid runtimes (`uh mission run`, `run-all`, `run-team`, `uh acceptance run`, also through `node`/`bun` and `dist/cli.js`); native sub-agent tools are denied by tool name for every role. | "no sub-agents. Workers do not start agents, agent CLIs or harness runs. Do the work yourself; if part of it exceeds your scope, end with ESCALATE: \<what your orchestrator should delegate\>." |
+| `guard_tamper` | A write, delete, copy, move, or redirection targets the guard policy or log, or an absolute target contains a `.harness`, `.commandcode`, `.omp`, or `.pi` path segment. | "the harness policy and its state are not yours to change." |
+| `protected_root` | A write-class tool or shell mutation targets a protected root. | "\<protected root\> belongs to the harness and is read-only." |
+| `containment_escape` | A command would launch a process outside the supervised process tree (scheduled-task, service, CIM process creation, `setsid`, `disown`, `at`, `crontab`, or `nohup` followed by `&`, among others). Applies to every role and every policy; no guard field lifts it. | "no launches outside the supervised process tree. Run the work in the foreground of this run instead." |
+
+Ordering and consequences: `guard_tamper` is checked before other mutation classes and is a hard policy stop; otherwise `protected_root` is produced before the write/delete class when a target is under a protected root. Reads are never denied merely because their path is protected. Denials count against the run's denial budget (`max_denials`) and stop the run with `stop_code: "denial_budget"` when reached; a protected-root mutation or a guard-tamper denial instead stops the run immediately with `stop_code: "policy"` — a hard stop that is never automatically resumed.
+
+The mission's `guard` block is strict; unknown fields are rejected. `agent_clients` is always enforced; an explicit empty list is the only opt-out. `allow_native_subagents: true` lets the runtime use its own sub-agent tool while agent CLIs and UH runs stay denied; every delegated agent is still held to the assigned route, and a different provider or model stops the run with `route_mismatch`.
+
+## Session templates and tiers
+
+Session templates are reusable, tiered execution configurations stored under `.harness/templates/<id>.yaml`, schema `uh.session-template.v0`. They answer "how is an attempt executed" — adapter, model, limits, recovery, guard defaults — as opposed to workflow profiles, which define "what phases a mission runs".
+
+- **Tiers:** `low-cost`, `balanced`, or `exhaustive`.
+- **Containment:** `standard` (default) or `strict`. A strict template is refused — `[BLOCKED]`, exit `2`, before any runtime is spawned — unless the resulting configuration has non-empty relative `write_roots` (a root of `.` or an absolute path is refused), keeps `allow_native_subagents` off, and keeps network clients denied.
+- **Fields:** `adapter`, `runtime_config_overrides`, `limits` (turn, time, stall, thinking, denial, repeated-failure, and output limits, plus `protected_paths`; never `memory_mb`), `recovery` (`max_resumes`, `notes`, `on_deadline`), `guard`, `attempts` (1–8 parallel attempts for exhaustive search), and `notes`.
+
+Adopt a template on `uh mission run` or `uh mission dry-run` with `--template <id>`. Merge semantics are "most specific wins": mission values beat template values, and template values beat harness defaults. `guard.write_roots` is never widened — if the mission defines `write_roots` (even empty), the template's are ignored. An explicit `--runtime-config-overrides <json>` wins over both. When `--runtime` is omitted the template's `adapter` is used; a conflicting `--runtime` is refused. `--auto` cannot be combined with `--template`. Fleet admission runs after the template is applied, so a template cannot route a run around spend authorization.
+
+A run that adopts a template records the applied descriptor in the run directory as `session-template.json` (`template_id`, `tier`, `containment`, `overridden_by_mission`). `indexRuns` reads it into the run record, and `uh observatory runs --group-by template` (or `tier`) aggregates pass rates, cost, and duration per tier so reliable configurations can be promoted into standard templates.
diff --git a/docs/handbook/packet-rules.md b/docs/handbook/packet-rules.md
new file mode 100644
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--- /dev/null
+++ b/docs/handbook/packet-rules.md
@@ -0,0 +1,51 @@
+# Packet rules
+
+Rules for mission packets that survive both the guard and the reviewer. Each rule names what fails without it. Sources: `docs/architecture/mission-packet-schema.md`, `docs/tool-guard.md`, `docs/runtime-targets.md`, `docs/runbooks/independent-review.md`.
+
+## 1. Declare every touched file in `expected_outputs`
+
+List every file the packet must produce under `expected_outputs.files` — for a single mission at mission level, and for a team worker in that worker's contract.
+
+- When a worker declares `expected_outputs.files`, the harness inspects the worker worktree on completion. If any declared output is missing, unreadable, or outside the workspace, the worker settles `blocked` instead of `succeeded`, `team-state.json` records a `blocked_reason` naming the file, and the worker's branch is not committed and is excluded from leader integration.
+- A missing declared output also blocks salvage: a stopped worker's worktree is only committed to a salvage branch when its declared outputs and required checks both pass in the worktree.
+- Mission-level `expected_outputs` are evaluated against the integrated repository tree at leader verification.
+
+An undeclared file is invisible to settlement: the work can pass while the artifact you actually wanted was never produced. The registry's acceptance campaigns use the same mechanism — `C1-missing-output` expects the missing file to block exactly its worker while a sibling succeeds.
+
+## 2. Keep every requested action inside `guard.write_roots`
+
+The guard allows writes and deletes only under `write_roots` (default `["."]`). Paths outside them are denied as `write_outside` or `delete_outside` with the instruction to put the file under the first write root instead. Rules for the author:
+
+- Make `write_roots` cover every path the packet asks the runtime to create, edit, or delete, and nothing more. Roots are compared by path boundary: a sibling directory whose name merely starts with a configured root does not match.
+- Never rely on the template to widen the boundary: when a session template is applied, the mission's `write_roots` (even an empty list) always win. Strict-containment templates refuse a root of `.` and any absolute path outright.
+- Protected roots (`.harness`, `.commandcode`, `.omp`, `.pi`, `.git` by default) are read-only no matter what `write_roots` says; a mutation there is a `protected_root` denial, and the supervisor turns it into a hard `policy` stop that is never resumed. `guard_tamper` — writing to the guard's own policy or log — is a hard stop too, and it is checked first.
+- Do not ask for package installs, git mutations, network clients, agent clients, or out-of-tree process launches: each has a denial class, and denials accumulate against `limits.max_denials` until the run stops with `denial_budget`. If a dependency or input is genuinely missing, the denial text says what to do: end with `BLOCKED: <what is missing>`; if the work exceeds your scope, end with `ESCALATE: <what should be delegated>`.
+
+## 3. Put incident context under a heading that says it is not for verification
+
+Anything declared in `acceptance_criteria` or `verification.required_checks` is verified and can fail the run; anything the independent reviewer finds under `acceptance` or `checks` must match a listed id exactly, and invented ids are rejected. So:
+
+- Keep `acceptance_criteria` to the claims a check can decide, each with a stable `id` and a `check_command`. Advisory material belongs in `severity: warn` entries (recorded for the audit trail, not blocking) or outside verification entirely.
+- For reviewers and review packets, the report schema provides `observations` as the outlet: every id the request lists must be covered exactly once under `acceptance` and `checks`, and anything verified that no listed id covers goes into `observations` — it is surfaced in the assessment without changing the recommendation. An empty list must be stated as `[] exactly; add nothing`, never left to inference.
+- Guard denials follow the same principle from the other side: the denial text tells the runtime to record the refusal in its final message and continue, rather than to retry by another route. A final message that narrates denied attempts in a clearly-labelled, non-verification section is the compliant shape.
+
+The rule in one line: incident context, caveats, and narration must be visibly separated from the things that are verified, so neither the validator nor a human reviewer can mistake one for the other.
+
+## 4. Set both top-level `max_turns` and `limits.max_turns`
+
+Turn caps reach the runtime through two paths, and a packet should pin both:
+
+- `limits.max_turns` is enforced by UH supervision for every runtime (`turn_start`/`turn_end` evaluation; a native terminal `stopReason: "max_turns"` settles as `turn_limit` too).
+- Top-level `max_turns` is what reaches a runtime's own native flag. For `command-code` the precedence is: explicit top-level `max_turns`, else `limits.max_turns`, else no flag. Print mode caps at 100 turns by default (exit 8) when neither field is configured — a silent native default recorded on the plan as `native_default_turn_cap: 100`.
+
+A packet that sets only `limits.max_turns` can run under a native cap different from its supervised one; a packet that sets both gets the native flag and the supervisor to agree on the same budget, and a turn-budget exhaustion then settles predictably as `turn_limit` (not automatically resumed) instead of tripping the silent default.
+
+## 5. State empty lists explicitly
+
+Where "omitted" and "empty" mean different things, write the empty list:
+
+- `guard.agent_clients` is always enforced; an explicit `agent_clients: []` is the only opt-out. Omitting the field takes the default client list.
+- Review packets spell out empty id lists as `[] exactly; add nothing` so the reviewer cannot improvise coverage; the generated report schema pins the enum to the empty set.
+- The strict schemas reject unknown fields rather than guessing intent: a guard block with an unrecognized key fails validation, and `limits.memory_mb` on a worker fails with "Per-worker memory is governed by team.resources.worker_memory_mb". An explicit empty `skills.required: []` or `source_links: []` documents that the omission is deliberate.
+
+Writing `[]` costs nothing and removes the one ambiguity — "forbidden" versus "forgotten" — that both the guard and the reviewer would otherwise have to guess at.
diff --git a/docs/handbook/review-round-trip.md b/docs/handbook/review-round-trip.md
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--- /dev/null
+++ b/docs/handbook/review-round-trip.md
@@ -0,0 +1,63 @@
+# The review round trip
+
+Independent review prepares an advisory review packet, runs the reviewer in a sandbox bound to the review mission, and collects a validated recommendation. The procedure never grants Main/owner acceptance and never promotes source work. Sources: `docs/runbooks/independent-review.md`, `src/harness/independent-review.ts`, `src/cli.ts`.
+
+## Why a sandbox is required
+
+`uh mission review-prepare` emits a complete packet under `.harness/missions/<review-id>/`: the captured `review-request.json`, a request-pinned `review-report.schema.json`, and a `mission.yaml` whose guard policy limits `write_roots` to the report directory and denies network, git, and package installs. The reviewer must run in a sandbox bound to that review mission — collection refuses a review whose bound workspace is missing — so the reviewer can write only the report (`out/review-report.json`) and cannot touch the source work under review.
+
+Preparation never starts a runtime or a model. For each source mission it snapshots the canonical contract and every expected output into the review mission's `inputs/` directory with SHA-256 digests, so the captured snapshots — not later source changes — define the review. Sources must be distinct missions, and a mission cannot review itself. An existing packet or abandoned preparation is never silently overwritten.
+
+## Running it
+
+Four commands, in order, from the canonical project root:
+
+```sh
+# 1. Capture the review inputs and emit the packet (does not start a runtime).
+uh mission review-prepare <review-id> --sources '[{"missionId":"<source-mission-id>"}]' --runtime command-code --model <reviewer-model>
+
+# 2. Create the sandbox bound to the review mission, branching from the integrated ref.
+uh sandbox create <review-sandbox-id> --mission <review-id> --base <integrated-ref>
+
+# 3. Run the review mission; it auto-routes into the bound sandbox.
+uh mission run .harness/missions/<review-id>/mission.yaml --runtime command-code
+
+# 4. Validate provenance, evidence, and the exact-id coverage; print the assessment.
+uh mission review-collect <review-id>
+```
+
+Notes:
+
+- `--runtime` must be the same value passed to `review-prepare`; the packet binds the runtime and model, and a mismatch is refused. Admitted reviewer runtimes are `oh-my-pi`, `command-code`, and `claude-code`.
+- The packet objective lists, per source, the exact acceptance criterion ids and required check ids the report must contain — including the explicit phrase `[] exactly; add nothing` when a list is empty — and points everything that no listed id covers at `observations`, never into `acceptance` or `checks`.
+- The generated report schema pins the allowed ids: each id list becomes an enum with a matching item cap, so a report containing an invented id cannot conform even before validation runs.
+
+## What the validator requires
+
+`review-collect` re-checks every binding before reading the recommendation:
+
+1. The request file digest still matches the digest recorded at preparation (`request_sha256`); a changed request is rejected.
+2. A successful native runtime receipt bound to the request exists: the run's recorded mission, run id, and runtime match the packet, status is `passed`, settlement is confirmed, and the receipt carries the same request digest.
+3. The runtime result artifact itself reports `passed`.
+4. The review mission's contract is unchanged in its workspace, and every captured input snapshot still matches its recorded digest in both the canonical root and the workspace.
+5. The report exists at the bound path, passes artifact verification, conforms to the pinned schema, and carries the same `request_sha256`.
+6. Each source mission, each acceptance criterion id, and each required check id is covered exactly once. Invented ids are rejected.
+7. Missing or invalid review inputs require a `needs-remediation` verdict for that source, and unverified or contradicted evidence cannot receive `pass`.
+
+The written assessment records the recommendation with `human_acceptance_required: true`. A `pass` recommendation still requires a human promotion decision on the source missions; it proves the report was evidence-backed and produced in a sandbox that could only write the report. It does not prove model intelligence or prompt compliance — the reviewer model's judgment is not validated by the harness.
+
+## The observations outlet
+
+The report schema gives the reviewer three places to record per-source results: `acceptance`, `checks`, and `observations`. The validator enforces the boundary:
+
+- `acceptance` and `checks` hold exactly the ids the request listed — no more, no fewer.
+- Anything the reviewer verified that no listed id covers goes into `observations`. Observations are surfaced in the assessment and printed summary without changing the recommendation.
+- A packet author benefits from the same discipline: incident context, caveats, and background belong under a clearly-labelled non-verification heading, never inside `acceptance_criteria` or `verification.required_checks`, because anything declared there is verified and can fail the run.
+
+## Where it sits in the loop
+
+Independent review is advisory input to a human decision, not a replacement for one. Record the human promotion decision on the source missions with:
+
+```sh
+uh promote <source-mission-id> --approved-by <approver> --decision <promoted|rejected|deferred>
+```
diff --git a/docs/handbook/run-control.md b/docs/handbook/run-control.md
new file mode 100644
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--- /dev/null
+++ b/docs/handbook/run-control.md
@@ -0,0 +1,114 @@
+# Run control
+
+How to see what is running, what it is doing, and what to do when a controller is gone. Sources: `docs/runbooks/run-control.md`, `src/harness/live-runs.ts`, `src/cli.ts`.
+
+## Seeing the runs
+
+Every runtime attempt claims a live-run entry at the project root the moment it claims its attempt. `uh ps` reads that registry, merges in whatever each run's `runtime-control.json` currently says, and scans the harness tree for pre-registry `runtime-control.json` files. It never needs a model, and a run's pids are only listed from the controller's own process tree.
+
+```bash
+# One line per live run, from the project root.
+uh ps
+
+# Machine-readable: schema, counts, and the full record per run.
+uh ps --json
+
+# Include runs that already settled, kept for 24 h ("what just ran?").
+uh ps --all
+```
+
+Each line carries the run id, mission, team role (for team workers), runtime and model, verdict, turns, denials, heartbeat age, the last tool and its age, and the native pids in the controller's process tree. `uh status` prints a single summary line from the same function:
+
+```
+Live runs: 4 (orphaned: 0)
+```
+
+### Liveness verdicts
+
+| Verdict | Meaning | What to do |
+|---|---|---|
+| `live` | The controller process is alive and the run reports `running` with a fresh heartbeat. | Nothing — it is working. |
+| `orphaned` | The run reports `running` but its controller pid is gone. Tokens may still be burning in a detached child. **This is the incident case.** | `uh kill --orphans`. `uh ps` exits `3` when any run is orphaned. |
+| `stale` | The controller is alive but its heartbeat is older than twice the stall window (the stall window defaults to 60 s, so roughly 2 min). | Check `last=` and the run's `events.ndjson`; the controller may be wedged. |
+| `settled` | Terminal status (`passed`, `failed`, `blocked`, `cancelled`). Shown only with `--all`, kept for 24 h. | Nothing — it is finished. |
+
+### Exit codes
+
+| Code | Meaning |
+|---|---|
+| `0` | Nothing is orphaned. |
+| `3` | At least one discovered run is orphaned. |
+| `1` | `uh ps` itself failed (bad `--root`, unreadable project). |
+
+### Where the registry lives
+
+- Registry: `.harness/live-runs/<run-id>.json` under the project root, schema `uh.live-run.v0`, recording `run_id`, `mission_id`, `runtime`, optional `model`, optional `team: { mission_id, role }`, `artifact_root`, `control_path`, `controller_pid`, `started_at`, and optional `status`, `stop_code`, `settled_at`.
+- The project root is the nearest ancestor of an artifact root that holds `.harness/project.yaml`. A team worker's artifact root lives under `.harness/missions/<team-mission>/team/artifacts/<parent-run>/workers/<role>` and registers with its team mission id and role.
+- The registry directory is gitignored: it is local execution state, not a publication input. Terminal control facts discovered by `uh ps` are reconciled back into the registry.
+
+## Cancelling an owned run
+
+`uh mission cancel` writes a cancel request the controller reads. It resolves the run through the same discovery `uh ps` uses, so `--root` may be the project root even when the run is a team worker whose `runtime-control.json` lives deeper in the harness tree.
+
+```bash
+uh mission cancel --mission <mission-id> --run-id <run-id> --root <project>
+```
+
+## Stopping runs
+
+`uh kill` stops runs and proves they are dead. Targets are always resolved through run discovery — the live-run registry plus a bounded harness scan — so the artifact root is never something the operator has to know.
+
+```bash
+# One run, by id or by a unique prefix of one.
+uh kill <run-id>
+uh kill <run-id-prefix>
+
+# Everything belonging to a mission, one worker role, or a whole team.
+uh kill --mission <mission-id>
+uh kill --role <role>
+uh kill --team <team-mission-id>
+
+# The project sweeps.
+uh kill --all
+uh kill --orphans
+
+# Machine-readable report.
+uh kill --team <team-mission-id> --json
+```
+
+For each target, in order:
+
+1. Resolve the artifact root that owns the run (a team worker's `runtime-control.json` sits under its `workers/<role>` directory, and that is the root the cancellation is written to).
+2. Ask the controller to stop with the normal `uh mission cancel` request.
+3. Wait up to `--wait-ms` (default `10000`) for the controller and every native process in its tree to exit, against the same process lister `uh ps` uses.
+4. If anything survives, terminate the tree (`--force` skips steps 2 and 3 and goes straight here).
+5. Re-list the processes, settle the live-run registry entry, and report.
+
+### Outcomes
+
+| Outcome | Meaning |
+|---|---|
+| `cancelled_gracefully` | The controller settled its own run and its process tree is gone. |
+| `force_killed` | The controller never settled or never exited; the owned tree was terminated and the re-list confirms it is gone. |
+| `still_alive` | Pids survived even the forced kill. They are listed as `surviving=` and the command exits `1`. |
+| `orphan_settled` | The controller pid was already gone, so no process was touched; the record was closed with `stop_code: controller_lost`. |
+| `skipped_settled` | The run had already settled for another reason; nothing was asked of it. |
+| `error` | That target could not be stopped (unreadable artifacts, a settlement conflict). Other targets are still processed. |
+
+Exit codes: `0` when every matched target is stopped; `1` when anything is `still_alive` or `error`, or when the command itself failed (bad selector, ambiguous prefix, unknown run id).
+
+### Orphans
+
+An orphaned run has no controller to ask and no tree to chase, so `uh kill <run-id>` never terminates anything for it: it closes the record through the same reconcile path the native guardian feeds, writing a `controller_lost` receipt first when the guardian never got the chance, then reconciling canonical artifacts. `uh kill --orphans` settles every orphaned run at once — the same set that makes `uh ps` exit `3`.
+
+That receipt attests that the owned tree is gone, so it is withheld when the process table still parents live processes to the dead controller pid (Windows keeps a stale parent id, so a detached runtime stays attributable there). Such a run is reported `still_alive` with those pids and exits `1`; the record is only closed by `--force`, which says "I know a native process is still parented there, close the record anyway" and still does not signal it.
+
+### Team cascade
+
+`--team <id>` stops a team in the only safe order: each worker run first, then the team controller that hosted them, then the team state is marked cancelled so the leader's integration never lands. Because a team controller is shared by its workers, `uh kill <worker-run-id>` on its own only waits for that worker's own settlement — it will not kill a pid its siblings are still running under. Use `--team` (or `--all`) for that.
+
+### What kill will not do
+
+- A pid is signalled only when it is a run's recorded controller pid or a descendant of it, taken from the process snapshot captured before anything was asked to stop. No other process on the machine is reachable from here.
+- An empty process table is a hard error, not a licence to declare every run dead.
+- Nothing is inferred from a stale heartbeat alone; liveness is the process lister's answer.
diff --git a/docs/handbook/slices-and-teams.md b/docs/handbook/slices-and-teams.md
new file mode 100644
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--- /dev/null
+++ b/docs/handbook/slices-and-teams.md
@@ -0,0 +1,112 @@
+# Slices and teams
+
+How to write a mission packet, how team missions fan out into per-worker packets, how resource waves admit workers, and what happens to stopped workers. Sources: `docs/architecture/mission-packet-schema.md`, `docs/runtime-targets.md`, `src/cli.ts`.
+
+## The mission packet
+
+A mission packet (`uh.mission.v0`) is the portable work request sent to a runtime adapter. It must be clear enough for a human to execute manually and structured enough for a runtime adapter to launch automatically. Create one with `uh mission create` (or `uh propose` from a spec):
+
+```bash
+uh mission create <mission-id> --title <title> --workflow <workflow-profile> --objective <objective>
+```
+
+Required top-level fields: `schema_version` (exactly `uh.mission.v0`), `id`, `workflow_profile`, and `title` or `name`. For a team mission, `shape: team` plus a `team` block are also required.
+
+A single-agent slice declares, at minimum:
+
+```yaml
+schema_version: uh.mission.v0
+id: <mission-id>
+title: <title>
+workflow_profile: <workflow-profile>
+objective: <objective>
+context:
+  read_first:
+    - <ordered context paths>
+constraints:
+  - <hard limits for the runtime>
+guard:
+  write_roots: [<roots>]
+skills:
+  required: []
+  suggested: []
+expected_outputs:
+  files:
+    - <path the mission must produce>
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+verification:
+  required_checks:
+    - <runnable commands or named manual checks>
+acceptance_criteria:
+  - id: <stable-criterion-id>
+    description: <criterion>
+    check_command: <command>
+    severity: block
+```
+
+Field rules that matter operationally:
+
+- `acceptance_criteria` entries carry a stable `id`, a `description`, an optional `check_command` (defaulted from `verification.required_checks` when omitted), and a `severity` of `block` (verification fails when the criterion fails) or `warn` (recorded, not blocking). When `acceptance_criteria` is absent, every entry under `completion_criteria` is auto-promoted to a `severity: warn` criterion. `uh verify` writes a per-criterion entry into `verification.yaml`.
+- `tdd.enforce_tests_first: true` opts the mission into a test-first verification gate that adds a blocking `ac-tdd-tests-precede-code` criterion; missions without a `tdd` block are unaffected.
+- `expected_outputs` should include every path the work must produce. Mission-level expected outputs are a leader-stage verification concern, evaluated against the integrated repository tree.
+- `sandbox.promotion_policy` must be explicit; `human-approved` means sandbox work becomes canonical only through a recorded decision (`uh promote`).
+
+Execution limits (`limits.max_turns`, `limits.timeout_ms`, `limits.stall_timeout_ms`, `limits.max_denials`, `limits.max_repeated_failures`, `limits.max_output_bytes`, and `limits.protected_paths`) are enforced by UH supervision for every runtime. `limits.memory_mb` is not a valid field; memory is a team-resource concern (below). See [packet-rules.md](./packet-rules.md) for the rule about declaring `max_turns` at both top level and in `limits`.
+
+## Team missions
+
+A team mission adds `shape: team` and a `team` block: `workers[]` with per-worker packets, and a `leader` that integrates their work. Worker roles must be unique. Each worker entry accepts a contract:
+
+| Field | Meaning |
+| --- | --- |
+| `adapter` | Accepted adapter id (required). |
+| `role` | Non-empty, unique worker role (required). |
+| `mission_id` | Optional distinct worker mission: the worker's contract and runtime packet are resolved from that mission's `mission.yaml` instead of inheriting the parent packet. |
+| `objective` | Worker-specific objective, combined with the parent mission objective when present; the worker inherits the parent objective when omitted. |
+| `runtime_config_overrides` | Runtime configuration merged over top-level mission overrides, worker values taking precedence (for example `model`). |
+| `limits` | Runtime execution limits for this worker (such as `max_turns`, `timeout_ms`, `max_denials`); land under `runtime_config_overrides.limits`. Per-worker `memory_mb` is not allowed here. |
+| `guard` | Per-worker tool guard fields: write roots and the git, package, network, and agent-client denial switches. |
+| `expected_outputs` | Output artifact paths this worker must produce; evaluated in the worker worktree after the runner returns. |
+| `seed` | Non-negative integer injected into the derived packet constraints for randomized steps. |
+
+During dispatch the harness writes the derived packet into the worker worktree and to the worker's artifact scope; when the worker runner returns, the worktree copy is restored to the canonical parent bytes before the git commit, so worker branches never commit derived packet mutations and the artifact scope preserves the exact derived packet the worker received.
+
+If a worker declares `expected_outputs.files` and any declared file is missing or fails verification, the worker settles `blocked` (not succeeded), the team state records a `blocked_reason` naming the file, and the worker's branch is not committed and is excluded from leader integration.
+
+Execute a team mission with:
+
+```bash
+uh mission run-team <mission-id> --base-ref <ref> --strategy merge
+```
+
+Strategies are `merge`, `cherry-pick`, or `rebase`. The leader merges changes and invokes verification; it does not perform a separate model synthesis run. A `PARTIAL` outcome is a non-blocking success: fewer than all workers landed but the integrated subset passed verification. Worktrees are cleaned up on a full pass and preserved on failure unless `--retain` says otherwise.
+
+## Resource waves
+
+Team workers run in resource-admitted waves. `team.resources` controls admission:
+
+| Field | Admission behavior |
+| --- | --- |
+| `max_parallel` | Caps workers admitted to a wave. Defaults to `4`. |
+| `worker_memory_mb` | Caps concurrency using available memory. A memory cap requires the native Windows runner and native `oh-my-pi` or `command-code` workers. |
+| `reserve_memory_mb` | Memory subtracted before calculating concurrency. Defaults to `1024` MB. |
+| `max_cost_usd` | Upper bound used to calculate remaining admission reservations. |
+| `worker_cost_reservation_usd` | Per-worker reservation charged to admission. Both cost fields are required together. |
+
+The harness re-admits a wave only after every worker admitted to the prior wave settles. If memory admission cannot launch one worker, or remaining cost cannot reserve one worker, the remaining workers are marked `blocked` and the team records `admission_blocked_reason`; a team with that reason stays `blocked` in its final status.
+
+**The unknown-cost admission rule:** unknown or invalid completed cost — including unavailable accounting — blocks further paid admission. It is never treated as zero. Cost admission is a reservation control, not a provider charge cap: an in-flight worker can exceed its reservation, so this is not a guaranteed spending ceiling. A worker that was never invoked contributes nothing, because no runner ran for it.
+
+## Salvage of stopped workers
+
+A worker that settles `failed` with a recoverable stop code (`turn_limit`, `timeout`, `deadline`, `stall`, or `policy`) may still hold usable work. The team state records a `salvage` entry for it with:
+
+- `eligible` — the worktree held changes outside the protected roots;
+- `outputs_passed` and `checks_passed` — the worker's declared outputs and its `verification.required_checks` were both re-run in the worker worktree through the same verifier the leader uses;
+- the worker `branch`.
+
+The worktree is committed to that branch with the existing hygiene rules only when both passed. The leader never merges a failed worker automatically, and a `policy` stop always requires a human. Workers that failed for other reasons (`route_mismatch`, `route_unverified`, `runtime_error`, `cancelled`, blocked) are not evaluated. Salvage never changes the team status: a team with a failed worker is still not passed. The integration report lists eligible stopped workers under a "Verified work from stopped workers" section with their stop code and branch.
+
+Canonical team artifacts: parent state and result live at `.harness/missions/<mission>/runs/<parent-run>/team-state.json` and `runtime-result.yaml`; worker artifact roots live at `.harness/missions/<mission>/team/artifacts/<parent-run>/workers/<worker>/`. In `team-state.json`, each `workers[]` entry carries the resolved `contract`, `outputs` verification records, `blocked_reason` when blocked, and `salvage` when applicable.
diff --git a/docs/handoffs/v0.8.0-finish.md b/docs/handoffs/v0.8.0-finish.md
index a0162ec..9d59ef2 100644
--- a/docs/handoffs/v0.8.0-finish.md
+++ b/docs/handoffs/v0.8.0-finish.md
@@ -2,7 +2,7 @@
 
 ## Session Metadata
 - Created: 2026-05-25
-- Project: `/Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness`
+- Project: `/Users/example/AgenticEngineering/ultimate-harness`
 - Branch: `dev` (@ `6173162d`)
 - Live npm `latest`: `@agenticengineeringagency/ultimate-harness@0.7.0`
 - Live tags on `origin`: `v0.7.0`, `plugin-v0.7.0`
diff --git a/docs/orchestrator-guide.md b/docs/orchestrator-guide.md
new file mode 100644
index 0000000..5676eec
--- /dev/null
+++ b/docs/orchestrator-guide.md
@@ -0,0 +1,763 @@
+# Orchestrator Guide to Ultimate Harness
+
+This guide describes how to operate Ultimate Harness as an orchestrator of coding agents. It covers core entities, lifecycle operations, team execution, observability, human decision gates, configuration surfaces, and verified command syntax.
+
+## 1. The mental model in five nouns
+
+### Mission
+A mission is a bounded unit of software work with a defined objective, context, constraints, expected outputs, verification checks, and promotion policy. It lives on disk under `.harness/missions/<id>/mission.yaml`, with an optional companion design document at `.harness/missions/<id>/design.md`. It is created by `uh propose`, `uh mission create`, `uh mission new`, or by direct authoring of schema-conforming YAML files. It is read by `uh validate`, `uh mission dry-run`, `uh mission run`, `uh mission run-all`, `uh mission run-team`, `uh verify`, `uh status`, and `uh observatory`.
+
+### Run (attempt)
+A run is a single execution attempt of a mission by a runtime adapter against an assigned sandbox workspace. It lives on disk under `.harness/missions/<id>/runs/<run_id>/`, with the latest result mirrored at `.harness/missions/<id>/runtime-result.yaml`, the active pointer at `.harness/missions/<id>/latest.json`, and chronological history recorded in `.harness/missions/<id>/runs/index.json`. It is created by `uh mission run`, `uh mission run-all`, or `uh mission run-team`. It is read by `uh status`, `uh verify`, `uh mission cancel`, `uh mission verdict`, and `uh observatory snapshot --json`.
+
+### Sandbox
+A sandbox is an isolated execution workspace where a runtime inspects repository context and writes file modifications without mutating the canonical working tree. It lives on disk at a dedicated path outside the main tree, with registration recorded in `.harness/sandboxes/index.yaml`. It is created by `uh sandbox create`. It is read by `uh sandbox list`, `uh sandbox status`, `uh sandbox discard`, `uh mission dry-run`, `uh mission run`, `uh verify`, and `uh promote`.
+
+### Verification
+Verification is structured evidence recording the execution of automated commands, acceptance criteria, and review gate evaluations against produced changes. It lives on disk at `.harness/missions/<id>/verification.yaml`. It is created by `uh verify`, or by the mechanical leader step in `uh mission run-team`. It is read by `uh promote`, `uh status`, and `uh observatory snapshot --json`.
+
+### Promotion
+Promotion is a safe, auditable transition that incorporates approved sandbox outputs into the canonical working tree and marks generated artifacts as accepted. It lives on disk at `.harness/missions/<id>/promotion.yaml` with an accompanying event recorded in `.harness/missions/<id>/events.ndjson`. It is created by `uh promote`, or automatically executed when a mission specifies the `auto-on-verify` promotion policy and passes verification. It is read by `uh status` and `uh observatory snapshot --json`.
+
+### Extensions of mission
+Ultimate Harness provides two extensions to single-agent missions:
+
+| Extension | Purpose | Definition and execution |
+|---|---|---|
+| Team mission | Coordinates multiple concurrent workers in isolated worktrees followed by mechanical integration and verification. | Configured by setting `shape: team` and specifying a `team` block in `mission.yaml`. Executed via `uh mission run-team`. |
+| Independent review | Validates completed mission outputs against captured contracts and SHA-256 snapshots without model execution. | Prepared via `uh mission review-prepare`, executed in an isolated directory sandbox via `uh mission run`, and validated via `uh mission review-collect`. |
+
+## 2. A day as the orchestrator
+
+Follow these steps in sequence to manage agentic work from project setup to artifact promotion.
+
+### Step 1: Initialize a project
+Initialize the `.harness/` directory structure in your repository root.
+
+- Command:
+```sh
+uh init
+```
+- Artifact produced or changed: Creates `.harness/project.yaml`, `.harness/skills/index.yaml`, `.harness/sandboxes/index.yaml`, `.harness/audit/events.ndjson`, and starter profiles in `.harness/workflows/`.
+- What to look at to know it worked: Run `uh validate .harness/project.yaml`. The output reports valid project metadata.
+- What to do when it did not: If `.harness/project.yaml` already exists, run `uh init --force` to overwrite it. If directory creation fails, verify write permissions on the target directory.
+
+### Step 2: Register the adapters you will use
+Add configuration manifests for each agent runtime you plan to dispatch.
+
+- Command:
+```sh
+uh adapter add hermes
+uh adapter add codex
+uh adapter add oh-my-pi
+```
+- Artifact produced or changed: Writes adapter manifest templates to `.harness/adapters/<runtime>.yaml`.
+- What to look at to know it worked: Run `uh adapter list` to confirm registered manifests. Run `uh adapter check <runtime>` to verify CLI binary availability and configuration prerequisites. Run `uh adapter capabilities` to view declared tools, sandbox support, and cost classes.
+- What to do when it did not: If a manifest already exists, use `uh adapter add <runtime> --force`. If `uh adapter check` reports missing dependencies, install the external runtime binary or configure required environment variables.
+
+### Step 3: Write a mission
+Create a mission packet file defining the unit of work.
+
+```yaml
+schema_version: uh.mission.v0
+id: m1-token-refresh
+title: Implement authentication token refresh endpoint
+workflow_profile: spec-first-feature
+priority: medium
+objective: Add a refresh token rotation endpoint with unit tests.
+context:
+  read_first:
+    - src/auth/tokens.ts
+  source_links: []
+constraints:
+  - Do not modify existing session cookie semantics.
+skills:
+  required: []
+  suggested: []
+expected_outputs:
+  files:
+    - src/auth/refresh.ts
+    - tests/auth/refresh.test.ts
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+verification:
+  required_checks:
+    - name: unit-tests
+      command: npm test
+  review_gates:
+    - spec-compliance
+acceptance_criteria:
+  - id: ac-refresh-success
+    description: Refresh endpoint returns 200 on valid token.
+    check_command: npm test -- -t "refresh valid"
+    severity: block
+```
+
+Field explanations:
+- `schema_version`: Must be the literal string `uh.mission.v0`.
+- `id`: Unique, audit-safe identifier for the mission.
+- `title`: Short descriptive name for the work.
+- `workflow_profile`: Named workflow profile matching a definition in `.harness/workflows/`.
+- `priority`: Work priority level (`low`, `medium`, `high`, `critical`).
+- `objective`: Concise text describing the target goal.
+- `context.read_first`: Ordered list of repository files the runtime must inspect first.
+- `context.source_links`: Relevant reference URLs.
+- `constraints`: Inviolable behavioral constraints and negative instructions.
+- `skills.required`: Procedural skills that capable runtimes must load.
+- `skills.suggested`: Recommended skills for the work.
+- `expected_outputs.files`: List of paths the runtime is expected to produce or modify.
+- `sandbox.backend`: Sandbox driver name (`git-worktree`, `directory`, or `container`).
+- `sandbox.promotion_policy`: Promotion gate rule (`human-approved` or `auto-on-verify`).
+- `verification.required_checks`: Named commands executed by `uh verify`.
+- `verification.review_gates`: Named human or automated review gates.
+- `acceptance_criteria`: Granular criteria with unique `id`, `description`, optional `check_command`, and `severity` (`block` or `warn`).
+
+- Command:
+```sh
+uh propose m1-token-refresh --title "Implement authentication token refresh endpoint" --workflow spec-first-feature --objective "Add a refresh token rotation endpoint with unit tests."
+```
+- Artifact produced or changed: Writes `.harness/missions/m1-token-refresh/mission.yaml`.
+- What to look at to know it worked: Run `uh validate .harness/missions/m1-token-refresh/mission.yaml`. Validation outputs report valid mission schema.
+- What to do when it did not: Examine validation error messages. Ensure acceptance criterion IDs are unique, required fields are populated, and the YAML syntax is correct.
+
+### Step 4: Bind a sandbox
+Create an isolated workspace bound to the mission.
+
+- Command:
+```sh
+uh sandbox create sb-m1-token-refresh --mission m1-token-refresh --backend git-worktree --base HEAD
+```
+- Artifact produced or changed: Materializes a git worktree at `.harness/sandboxes/sb-m1-token-refresh/` and registers the entry in `.harness/sandboxes/index.yaml`.
+- What to look at to know it worked: Run `uh sandbox list` or `uh sandbox status sb-m1-token-refresh`. The sandbox entry shows status `created`.
+- What to do when it did not: Ensure the repository has at least one committed git revision. If the worktree path or git branch already exists, discard the conflicting sandbox using `uh sandbox discard sb-m1-token-refresh --force`.
+
+### Step 5: Run it
+Execute the mission against the configured runtime.
+
+- Command:
+```sh
+uh mission dry-run .harness/missions/m1-token-refresh/mission.yaml --runtime codex
+uh mission run .harness/missions/m1-token-refresh/mission.yaml --runtime codex
+```
+- Routing: both commands print a `Sandbox:` line showing where execution goes — `Sandbox: sb-m1-token-refresh (.harness/sandboxes/sb-m1-token-refresh/worktree)` for the bound sandbox, or `Sandbox: none (project root, --no-sandbox)` when root execution was requested explicitly. `uh mission run` refuses to fall back to the project root silently: with no bound sandbox and no `--no-sandbox` it prints `[BLOCKED] mission m1-token-refresh has no bound sandbox; create one with "uh sandbox create <sandbox-id> --mission m1-token-refresh" or pass --no-sandbox to run in the project root`, exits `2`, settles `UH_RESULT` with status `blocked`, and creates no run directory. `uh mission dry-run` never blocks; it only reports the routing. Pass `--no-sandbox` only when editing the live working tree is what you intend.
+- Artifact produced or changed: Automatically routes execution into the bound sandbox. Writes per-run artifacts under `.harness/missions/m1-token-refresh/runs/<run_id>/`: `prompt.md`, `runtime-session.yaml`, `events.ndjson`, `runtime.stdout.log`, `runtime.stderr.log`, `diff.patch`, `runtime-result.yaml`, and `runtime-final.txt`. Updates `.harness/missions/m1-token-refresh/latest.json`, appends to `runs/index.json`, and mirrors `.harness/missions/m1-token-refresh/runtime-result.yaml`.
+- What to look at to know it worked: The command completes with exit code 0. Inspect `.harness/missions/m1-token-refresh/runtime-result.yaml` to confirm `status: passed`.
+- What to do when it did not: Inspect `runtime.stderr.log` and `runtime-result.yaml` in the run directory. If capabilities mismatch, inspect `uh adapter capabilities` or pass `--force` to bypass capability matching. If the run was refused with `has no bound sandbox`, the registration is missing or discarded — recreate it with `uh sandbox create <sandbox-id> --mission m1-token-refresh` (see Step 4) and check `uh sandbox list`.
+
+### Step 6: Watch it
+Observe progress and project state during or after execution.
+
+- Command:
+```sh
+uh status --json
+uh observatory snapshot --json
+```
+- Artifact produced or changed: No artifacts are modified. These commands read active project state.
+- What to look at to know it worked: `uh status --json` returns JSON containing `active_missions_count`, adapter health, and sandbox counts. `uh observatory snapshot --json` returns work item operations, agent states, and fresh timestamps.
+- What to do when it did not: If observatory reports `stale` or `unknown`, check if the runtime process stalled or terminated unexpectedly. If a local run is hung, cancel it with `uh mission cancel --mission m1-token-refresh --run-id <run_id>`. Interactive steering of a running worker is not available yet (see [roadmap: mission authoring and coordination](./ROADMAP.md#mission-authoring-and-coordination)).
+
+### When the harness stops a worker, and when it resumes
+
+During execution via `uh mission run`, the harness supervisor monitors runtime progress against configured limits, tool hook denial budgets, command failure counts, and protected-path safety rules. When an execution anomaly occurs, the harness halts the worker process tree and records a canonical control receipt at `.harness/missions/<id>/runs/<run_id>/runtime-control.json`.
+
+#### What the control receipt shows
+
+The control receipt captures the supervisor's exact determination:
+- `status`: Execution status (`running`, `passed`, `failed`, `blocked`, or `cancelled`).
+- `stop_code`: Machine-readable reason for the stoppage (such as `denial_budget`, `repeated_failure`, `stall`, `timeout`, `startup`, `turn_limit`, `deadline`, or `policy`).
+- `stop_reason`: Detailed explanatory string, including the specific action, command, hook message, or path that triggered the stop (for example, `Protected path write attempted: .harness/adapters/oh-my-pi.yaml` or `3 hook-denied calls; last: write_file out/c.txt: writes are temporarily locked`).
+- `turns`: Number of completed interaction turns.
+- `denials`: Total number of counted guard denials: native hook-block events and completed tool results whose reason begins with `CONTRACT:`. A call ID is counted once.
+- `inflight_tools`: Number of tool calls currently executing when the receipt was written.
+- `controller_pid`: Process ID of the runtime controller.
+
+Operators can inspect this receipt directly on disk or observe the run's operational health using `uh status --json` and `uh observatory snapshot --json`. If a run must be terminated manually before natural settlement, operators can invoke `uh mission cancel --mission <id> --run-id <run_id>`.
+
+#### Which stops resume automatically, and how many times
+
+When the mission or adapter configures a bounded recovery policy (`recovery.max_resumes` and `recovery.notes`), `uh mission run` automatically initiates a recovery attempt for transient operational halts:
+- **Eligible stop codes**: `denial_budget`, `repeated_failure`, `stall`, `timeout`, and `startup`.
+- **Requirements**: The stopped attempt must have recorded a valid native `session_id`, must have settled cleanly, and the total resume count must be less than `recovery.max_resumes`.
+- **Attempt count**: Resumption repeats up to `recovery.max_resumes` times (for example, `max_resumes: 2` allows up to two resume attempts after the initial failure). Each resume generates a distinct run directory (`runs/<new_run_id>/`) and appends to `runs/index.json`.
+- **Stops that do not auto-resume**: `turn_limit`, `output_limit`, `cancelled`, `runtime_error`, `controller_error`, `route_mismatch`, and `route_unverified` do not automatically resume. A `controller_lost` stop indicates the controller process died unexpectedly; an operator can resume it by executing `uh mission run <file> --runtime <runtime> --runtime-config-overrides '{"resume_from_run": "<run_id>"}'`, which reconciles settlement before attaching to the saved session.
+
+#### What the worker is told on resume
+
+A resumed worker is not restarted from scratch. The harness preserves the native transcript and invokes the runtime with instructions to continue the existing session. In addition to operator recovery notes, `prepareRuntimeResume` composes a mandatory warning derived from the previous run's control receipt:
+
+```text
+<recovery.notes>
+You were stopped: <stop_reason>. Do not repeat that action. Inspect existing outputs before continuing.
+```
+
+This ensures the agent understands why its previous action was blocked, prevents it from repeating the failing command or prohibited write, and prompts it to evaluate outputs already produced on disk. The resumed attempt records these facts in `.harness/missions/<id>/runs/<run_id>/runtime-recovery.json`.
+#### Deadline grace delivery
+
+Configure `runtime_config.recovery.on_deadline` when a worker must leave a reviewable deliverable instead of being cut off at its ordinary wall-time or turn limit:
+
+```yaml
+recovery:
+  max_resumes: 0
+  notes: "Preserve the current findings."
+  on_deadline:
+    grace_turns: 2
+    grace_timeout_ms: 300000
+    notes: "Use the existing output directory."
+```
+
+The supervisor converts the ordinary limit into a `deadline` stop at the configured grace boundary and records the remaining budget in `runtime-control.json`. UH resumes the saved native session exactly once with the mandatory instruction to write what it has, mark the deliverable `INCOMPLETE`, and end with `Missing for the next step`; this grace attempt is never resumed. The resumed run writes `runtime-recovery.json` with `grace: true` and `runtime-result.yaml` with `completion: "incomplete"` plus `incomplete_reason`; it is surfaced as passed only when the runtime completed and its declared outputs verify, otherwise the final run is failed.
+
+#### Policy stops are final
+
+A stop with code `policy` indicates that the worker attempted to modify a protected root (such as `.harness`, `.git`, `.omp`, `.pi`, or `.commandcode`). A `policy` stop is final:
+- The supervisor evaluates the protected path on the first tool event for the call (`tool_queued`, `tool_execution_start`, or `tool_running`), because runtimes expose different event names.
+- Bounded recovery refuses to resume: `prepareRuntimeResume` throws an explicit error when attempting to resume a `policy` stop.
+- The attempt cannot be resumed automatically or manually. To proceed, the operator must inspect the mission constraints, correct the objective or worker instructions, and launch a fresh attempt.
+
+#### Declaring a guard and reading its log
+
+Declare the guard at mission level when every worker in the mission shares the same tool contract:
+
+```yaml
+guard:
+  write_roots: [out]
+  deny_git_mutations: true
+  deny_package_installs: true
+  deny_network_clients: true
+  agent_clients: [omp, cmdc, codex, pi, hermes, aider, gemini]
+```
+
+For a team, a worker may declare its own `guard` block under `team.workers[]`. Omitted fields receive schema defaults. `write_roots` controls write and delete targets; protected roots are a separate supervisor policy and default to `.harness`, `.commandcode`, `.omp`, `.pi`, and `.git`. The guard is path-only and content-blind.
+
+Validate and inspect the plan before starting:
+
+```sh
+uh validate --all-missions
+uh mission dry-run .harness/missions/m1-token-refresh/mission.yaml
+```
+
+After `uh mission run`, read the applied policy and decisions in the selected run directory:
+
+```text
+.harness/missions/m1-token-refresh/runs/<run_id>/tool-guard.json
+.harness/missions/m1-token-refresh/runs/<run_id>/tool-guard.log
+```
+
+`tool-guard.json` records the resolved policy, `worker_root`, and `protected_paths`. Each line of `tool-guard.log` is JSON with `ts`, `tool`, `class`, `target` (the resolved target or tool-name fallback), and the exact denial `reason`. The denial budget is visible in `runtime-control.json`; a protected-root mutation is a final `policy` stop. See [Tool Guard](tool-guard.md) and [Native Runtime Events](architecture/runtime-events.md).
+
+### Step 7: Verify
+Execute required automated checks and evaluate acceptance criteria.
+
+- Command:
+```sh
+uh verify m1-token-refresh
+```
+- Artifact produced or changed: Runs configured checks inside the bound sandbox worktree. Writes `.harness/missions/m1-token-refresh/verification.yaml`. Appends `acceptance.checked` events to `.harness/missions/m1-token-refresh/events.ndjson`.
+- What to look at to know it worked: Output prints check results. Inspect `.harness/missions/m1-token-refresh/verification.yaml` to confirm `status: passed`.
+- What to do when it did not: If status is `failed` or `blocked`, check stdout and stderr snippets in `verification.yaml` under each failed check. Fix issues by running another attempt or adjusting commands.
+
+### Step 8: Review
+Evaluate quality, diffs, and independent review evidence.
+
+- Command:
+Inspect `.harness/missions/m1-token-refresh/runs/<run_id>/diff.patch` and `runtime-final.txt`. For formal independent review:
+```sh
+uh mission review-prepare rev-m1 --sources '[{"missionId":"m1-token-refresh"}]' --runtime codex --model <model>
+uh sandbox create sb-rev-m1 --mission rev-m1 --backend directory
+uh mission run .harness/missions/rev-m1/mission.yaml --runtime codex
+uh mission review-collect rev-m1
+uh mission verdict m1-token-refresh pass --rationale "All acceptance criteria verified."
+```
+- `review-prepare` creates `.harness/missions/rev-m1/mission.yaml` with source input digests and assigns the reviewer output to the permitted `out/review-report.json` workspace path. The reviewer writes that report in its isolated workspace; the trusted controller keeps request, schema, and assessment artifacts under `.harness`. `review-collect` validates evidence and emits `review-assessment.json`.
+- What to look at to know it worked: `runtime-result.yaml` contains `verdict.value: pass`. `review-assessment.json` confirms valid artifact hashes and records `human_acceptance_required: true`.
+- What to do when it did not: If review assessment returns `needs-remediation`, examine missing outputs or failed criteria. Multiple reviewers and cross-family reviewer packets are not available yet (see [roadmap](./ROADMAP.md#review-protection-and-output-contracts)).
+
+### Step 9: Promote or reject
+Record the formal promotion or rejection decision.
+
+- Command:
+```sh
+uh promote m1-token-refresh --approved-by "Lead Orchestrator" --decision promoted --change src/auth/refresh.ts --change tests/auth/refresh.test.ts --sandbox-id sb-m1-token-refresh
+```
+To reject instead:
+```sh
+uh promote m1-token-refresh --approved-by "Lead Orchestrator" --decision rejected
+```
+- Artifact produced or changed: Writes `.harness/missions/m1-token-refresh/promotion.yaml` and appends `promotion.recorded` to `.harness/missions/m1-token-refresh/events.ndjson`.
+- What to look at to know it worked: Inspect `.harness/missions/m1-token-refresh/promotion.yaml` to confirm `decision: promoted` and `approved_by: "Lead Orchestrator"`.
+- What to do when it did not: If promotion fails with a verification requirement error, run `uh verify m1-token-refresh` and ensure all blocking criteria pass before promoting. Ensure `--approved-by` is non-empty.
+
+### Step 10: Clean up
+Dispose of the sandbox workspace once work is complete.
+
+- Command:
+```sh
+uh sandbox discard sb-m1-token-refresh --force
+```
+- Artifact produced or changed: Removes the sandbox worktree directory from disk and updates `.harness/sandboxes/index.yaml` marking status as `discarded`.
+- What to look at to know it worked: Run `uh sandbox list`. The sandbox is either removed or marked `discarded`. The filesystem path is deleted.
+- What to do when it did not: Pass `--force` if the worktree contains uncommitted files. Use `--keep-branch` if the git branch should be preserved for debugging.
+
+## 3. Running a team
+
+### Team mission shape
+A team mission divides work across multiple concurrent workers and coordinates integration through a mechanical leader. Configure a team mission by setting `shape: team` in `mission.yaml`:
+
+```yaml
+schema_version: uh.mission.v0
+id: m2-team-refactor
+title: Parallel refactoring of core modules
+workflow_profile: spec-first-feature
+priority: high
+objective: Refactor parser and serializer modules concurrently.
+shape: team
+team:
+  workers:
+    - role: parser-worker
+      adapter: codex
+      count: 1
+    - role: serializer-worker
+      adapter: hermes
+      count: 1
+  leader:
+    role: integration-lead
+    adapter: codex
+  resources:
+    max_parallel: 2
+    worker_memory_mb: 2048
+    reserve_memory_mb: 1024
+    max_cost_usd: 10.0
+    worker_cost_reservation_usd: 2.0
+expected_outputs:
+  files:
+    - src/parser.ts
+    - src/serializer.ts
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+verification:
+  required_checks:
+    - name: build-and-test
+      command: npm test
+```
+
+### Giving each worker its own contract
+
+By default, workers inherit the top-level mission objective and adapter configuration. When workers perform distinct subtasks, define a contract on individual workers under `team.workers`:
+
+```yaml
+team:
+  workers:
+    - role: parser-worker
+      adapter: oh-my-pi
+      objective: Refactor the token parser to use streaming AST nodes.
+      runtime_config_overrides:
+        model: openai-codex/gpt-5.6-luna
+      limits:
+        max_turns: 8
+      expected_outputs:
+        files:
+          - src/parser.ts
+      seed: 101
+    - role: serializer-worker
+      adapter: oh-my-pi
+      objective: Refactor the AST serializer for streaming output.
+      runtime_config_overrides:
+        model: google-antigravity/gemini-3.8-flash
+      limits:
+        max_turns: 5
+      expected_outputs:
+        files:
+          - src/serializer.ts
+      seed: 202
+  leader:
+    adapter: oh-my-pi
+```
+
+During execution, the harness derives a specialized mission packet for each worker:
+- **Objective**: The worker `objective` is combined with the team objective (`<worker objective>\n\nTeam objective: <parent objective>`). When omitted, the worker inherits the team objective.
+- **Runtime overrides**: Worker `runtime_config_overrides` take precedence over mission-level overrides, and worker `limits` land under `runtime_config_overrides.limits`. Per-worker memory limits cannot be declared under `limits`; per-worker memory is governed by `team.resources.worker_memory_mb`.
+- **Seed**: A `seed` value is injected into the worker packet's constraints (`Seed: <seed>. Use it for every randomized step and print it in your final message.`).
+- **Packet isolation**: The derived packet is written to the worker worktree and to `<artifact_scope>/.harness/missions/<id>/mission.yaml`. Before the worker's changes are committed, the worktree copy is restored to the canonical packet, so worker branches never differ on it.
+
+#### Settlement outcome
+
+When a worker returns, the harness evaluates its declared `expected_outputs.files` inside the worker worktree:
+- **Output verification passed**: When every declared output file exists and satisfies verification, the worker settles with status `succeeded`, commits its worktree changes, and qualifies for leader integration.
+- **Output verification failed or missing**: If any declared output file is missing or fails verification, the worker settles with status `blocked`. The failure reason is recorded in `blocked_reason` in `team-state.json` (for example, `Declared output src/serializer.ts: Declared output is missing, unreadable, or outside the workspace`). The worker's branch is not committed and is excluded from leader integration.
+- **Team impact**: If at least one worker succeeds and integrates cleanly and verification checks pass on the integrated tree, the overall team run settles as `passed_partial`. If no workers integrate or verification fails, the team settles as `blocked` or `failed`.
+
+Execute the team mission with:
+
+```sh
+uh mission run-team m2-team-refactor
+```
+
+### Resources: memory and cost admission
+
+Team execution admits workers in resource-bounded waves. Before each wave, the harness computes slots from `max_parallel` and, when configured, current available memory after `reserve_memory_mb`. It then limits slots to the remaining `worker_cost_reservation_usd` reservations under `max_cost_usd`; both cost fields are required together.
+
+The harness waits for every admitted worker in a wave to settle before admitting the next wave. A memory cap requires Windows with native `oh-my-pi` or `command-code` workers, and execution refuses other environments or adapters. Unknown or invalid completed cost blocks further paid admission and is never treated as zero. A worker that was never invoked contributes no cost because no runner ran. Admission-blocked workers receive `admission_blocked_reason`, and the final team status remains `blocked`.
+
+Cost admission reserves launch capacity. It is not a provider charge cap, and it is not a guaranteed spending ceiling. See [Runtime Targets](runtime-targets.md#team-resource-admission) for the field reference.
+
+### What the leader does mechanically
+Execute a team mission with:
+```sh
+uh mission run-team m2-team-refactor --base-ref HEAD --strategy merge
+```
+The leader role in `uh mission run-team` is entirely mechanical. No leader language model is invoked. The leader performs the following steps:
+1. Creates a dedicated leader worktree and separate worker worktrees from `--base-ref` (default `HEAD`).
+2. Dispatches workers in resource-bounded waves into their respective worktrees.
+3. Captures worker execution artifacts under `.harness/missions/<mission>/team/artifacts/<parent-run>/workers/<worker>/`.
+4. Applies the chosen integration strategy (`merge`, `cherry-pick`, or `rebase`, default `merge`) to incorporate worker branches into the leader worktree.
+5. Runs verification checks inside the integrated leader worktree.
+6. Writes `.harness/missions/<mission>/runs/<parent-run>/team-state.json` (`uh.team-run.v0`) and the integration report.
+7. Copies leader verification output to the parent run's `verification.yaml`.
+8. Cleans up worker and leader worktrees on `passed`, but preserves worktrees on `failed` or when `--retain` is specified.
+
+### What blocked versus passed_partial mean
+
+| Team run status | Meaning | Condition |
+|---|---|---|
+| `passed` | Full success | Every worker integrated cleanly without merge conflicts, and verification passed on the integrated result. |
+| `passed_partial` | Non-blocking partial success | Some workers failed or had merge conflicts, but at least one worker integrated cleanly and verification passed on the integrated subset. Callers gating on success treat this as success with caveats. |
+| `blocked` | Execution blocked | Verification failed to pass, or zero workers could be integrated due to conflicts, or admission was blocked by memory headroom or cost reservation limits. |
+| `failed` | Hard verification failure | Verification explicitly executed and returned status `failed`. |
+
+### Current limits
+The team implementation has documented capability boundaries:
+- Parallel-derived memory caps: Per-worker memory caps derived from declared child process counts are not available yet. See [roadmap](./ROADMAP.md#runtime-reliability-and-accounting).
+- Independent review breadth: One review packet binds to one reviewer runtime and model; multiple reviewers, different model families, and wave-level reviewer packets are not available yet. See [roadmap](./ROADMAP.md#review-protection-and-output-contracts).
+- Credential scoping and deny-read: Credentials remain environment-scoped for HTTP adapters and review packets disable shared memory/extensions/skills, but private per-worker homes, provider-only credential scope, deny-read, and protection-verifying preflight are not available yet. See [roadmap](./ROADMAP.md#review-protection-and-output-contracts).
+- Steering channel: Mid-run message delivery to a running worker is not available yet. See [roadmap: mission authoring and coordination](./ROADMAP.md#mission-authoring-and-coordination).
+
+## 4. What you can observe, and where
+
+### Per-run artifacts
+Every execution attempt generates an isolated artifact directory under `.harness/missions/<id>/runs/<run_id>/`:
+
+| Artifact | Schema or format | Contents |
+|---|---|---|
+| `prompt.md` | Markdown text | The exact rendered prompt sent to the runtime adapter, including the final sentinel instruction. |
+| `runtime-session.yaml` | `uh.runtime-session.v0` | Session identity, runtime kind, start time, finish time, and session status (`planned`, `running`, `succeeded`, `failed`). |
+| `events.ndjson` | Line-delimited JSON | Real-time event trace capturing lifecycle transitions, tool calls, and audit records. |
+| `runtime.stdout.log` | Raw text | Captured standard output from the runtime process. |
+| `runtime.stderr.log` | Raw text | Captured standard error from the runtime process. |
+| `diff.patch` | Unified diff | Git diff of changes made in the sandbox during the run. |
+| `runtime-result.yaml` | `uh.runtime-result.v0` | Execution status (`passed`, `failed`, `blocked`, `cancelled`), exit code, usage counters, cost estimate, and errors. |
+| `runtime-final.txt` | Raw text | Summary message extracted from the terminal `uh-runtime-final-message` block. |
+
+In addition to per-run directories, the mission directory maintains aggregate pointers:
+- `.harness/missions/<id>/latest.json`: Pointer object containing `{ schema_version, run_id, started_at, finished_at, status }`.
+- `.harness/missions/<id>/runtime-result.yaml`: Atomic mirror of the latest run's `runtime-result.yaml`.
+- `.harness/missions/<id>/runs/index.json`: Chronological array of all runs with terminal statuses.
+
+### Inspecting project state with `uh status --json`
+Run `uh status --json` to inspect project health without invoking an LLM. It emits the UH-78 JSON document:
+- `name`: Name of the project from `.harness/project.yaml`.
+- `schema_version`: Project schema version.
+- `adapters`: Array of registered adapters with `id`, `name`, and `status`.
+- `workflow_profiles_count`: Number of workflow profiles in `.harness/workflows/`.
+- `active_missions_count`: Number of mission directories in `.harness/missions/`.
+- `recent_audit_events`: Number of event lines in `.harness/audit/events.ndjson`.
+- `skills_indexed_count`: Number of indexed skills in `.harness/skills/index.yaml`.
+- `sandboxes`: Object containing `total` and `by_status` breakdown (`created`, `running`, `dirty`, `discarded`, `promoted`).
+- `verified_missions_count`: Number of missions with passing `verification.yaml`.
+- `promoted_missions_count`: Number of missions with valid `promotion.yaml`.
+
+### Delivery Observatory snapshot fields
+Run `uh observatory snapshot --json` to generate a read-only `delivery-observatory.v1` projection. Orchestrators use the following fields:
+- `projection_status`: `ready`, `partial`, or `blocked`.
+- `work_items`: Array of work items representing missions. Key fields include:
+  - `work_item_id`: Stable mission identifier.
+  - `phase`: Current lifecycle phase (`discovery`, `design`, `plan`, `execute`, `review`, `verify`, `integrate`, `release`, `unknown`).
+  - `operation`: Operational state (`queued`, `active`, `blocked`, `awaiting_human`, `succeeded`, `failed`, `cancelled`, `uncertain`, `unknown`).
+  - `state`: Fact assertion state (`observed`, `inferred`, `proposed`, `unknown`) and evidence references.
+  - `elapsed_ms`: Elapsed execution time in milliseconds.
+  - `blocker_refs`: Identifiers of blocking events or decisions.
+  - `attention_refs`: Identifiers of items awaiting review or human decisions.
+- `agents`: Array of registered agents with active roles and operational state.
+- `decisions`: Open questions and human gates with state (`open`, `awaiting_answer`, `decided`, `dismissed`, `expired`).
+- `events`: Normalized timeline events (`decision`, `dispatch`, `review`, `gate`, `test`, `artifact`, `failure`, `status_change`).
+- `redaction`: Audit counts of omitted sensitive fields and rejected records.
+
+### What remains unknown by design
+The filesystem observatory adapter emits strictly verified evidence and does not fabricate missing numbers. Under the orthogonal state model, unverified facts are explicitly tagged `{ state: "unknown", reason_code: "not_reported" }`.
+- Route and model: The exact model and provider remain `unknown` unless verified by native runtime event attestation.
+- Token counts: Input, output, and cache token counters remain `unknown` when an adapter does not report native usage metrics.
+- Token costs: USD costs are list-price or configured estimates, not billing receipts. If token usage counters are absent, cost remains `unknown`.
+- Metrics: DORA metrics, product metrics, and Pareto comparisons remain `unknown` in the local filesystem projection because no verified upstream telemetry source exists.
+
+## 5. Where a human decision is required
+
+Four specific lifecycle points require explicit human decisions.
+
+### 1. Promotion policy selection and promotion decision
+The promotion policy dictates whether human approval is required before changes become canonical.
+- Policy values in `mission.yaml` under `sandbox.promotion_policy`:
+  - `human-approved`: Default policy. Requires an explicit human promotion command.
+  - `auto-on-verify`: Changes auto-promote upon a passing `uh verify`.
+  - Any unrecognized policy name falls back safely to `human-approved`.
+- Command recording the decision:
+```sh
+uh promote <mission-id> --approved-by "<name>" --decision <promoted|rejected|deferred> [--change <path>...] [--sandbox-id <id>]
+```
+- What it writes: Writes `.harness/missions/<mission-id>/promotion.yaml` validated against `uh.promotion.v0`. Appends an audit event (`promotion.recorded`) to `.harness/missions/<mission-id>/events.ndjson`.
+
+### 2. Manual verdicts
+An orchestrator can record a manual review verdict on a mission result.
+- Verdict values:
+  - `pass`: Approves the mission result.
+  - `needs-attention`: Flags issues requiring human follow-up. Requires `--rationale`.
+  - `needs-remediation`: Flags issues requiring code changes. Requires `--rationale`.
+- Command recording the decision:
+```sh
+uh mission verdict <mission-id> <pass|needs-attention|needs-remediation> [--rationale "<text>"]
+```
+- What it writes: Mutates `.harness/missions/<mission-id>/runtime-result.yaml` in place by adding a `verdict` block (`value`, `rationale`, `recorded_by: "manual"`, `recorded_at`). Appends a timestamped log line to `.harness/audit.log` matching `<timestamp> verdict.recorded <mission_id> <value> by=manual`.
+
+### 3. Review assessments
+Independent review packets assess completed work without modifying source files.
+- Role: Advisory peer assessment.
+- Commands recording preparation and assessment:
+```sh
+uh mission review-prepare <review-id> --sources '[{"missionId":"<mission-id>"}]' --runtime <runtime> --model <model>
+uh mission review-collect <review-id>
+```
+- What it writes: `review-collect` validates hashes and writes `review-assessment.json` in the review mission directory.
+- Decision boundary: `review-assessment.json` always records `human_acceptance_required: true`. It is purely advisory. It never grants human acceptance, never records an owner verdict, and never promotes source work. An orchestrator must independently review findings and execute `uh mission verdict` or `uh promote`.
+
+### 4. Cancellation
+An orchestrator can terminate an active run before natural settlement.
+- Command recording the decision:
+```sh
+uh mission cancel --mission <id> --run-id <run_id> [--plugin-url <url>]
+```
+- What it writes: For local runs, writes `.harness/missions/<id>/runs/<run_id>/cancel-request.json` (`uh.runtime-cancel-request.v0`). Signals the owned process tree or Windows Job. Updates `runtime-result.yaml` to `status: cancelled`. Updates `runtime-session.yaml` to `status: failed` with exit code 143. Updates `runs/index.json`. Updates `latest.json` and mirrored `runtime-result.yaml` if this was the latest run. Appends a terminal cancellation event to `events.ndjson`.
+
+## 6. Configuration surface
+
+### Files edited by an orchestrator
+
+| File path | Purpose | Editable fields |
+|---|---|---|
+| `.harness/project.yaml` | Project identity and defaults. | `id`, `name`, `root_path`, `issue_sources`, `default_workflow_profiles`, `artifact_schema_version`. |
+| `.harness/adapters/<runtime>.yaml` | Adapter manifests and capabilities. | `name`, `runtime_kind`, `capabilities`, `supported_sandbox_backends`, `default_model`, `limits`. |
+| `.harness/missions/<id>/mission.yaml` | Per-mission runtime overrides under `runtime_config_overrides`. | `model`, `request_timeout_ms`, `limits` (`timeout_ms`, `startup_timeout_ms`, `stall_timeout_ms`, `max_output_bytes`), `honcho_memory`. |
+| `.harness/missions/<id>/mission.yaml` | Team resource boundaries under `team.resources`. | `max_parallel`, `worker_memory_mb`, `reserve_memory_mb`, `max_cost_usd`, `worker_cost_reservation_usd`. |
+
+### Environment variables outside artifacts
+Keep credentials and machine-level settings in environment variables rather than persisting them in repository files:
+
+| Environment variable | Purpose |
+|---|---|
+| `OPENROUTER_API_KEY` | Authentication key for OpenRouter HTTP adapter. |
+| `UH_TELEMETRY` | Telemetry opt-in toggle (`posthog`, `1`, or `true`). |
+| `UH_POSTHOG_API_KEY` | PostHog API key for optional telemetry capture. |
+| `UH_POSTHOG_HOST` | PostHog capture host endpoint. |
+| `UH_PROJECT_ROOT` | Project root override for Hermes plugin. |
+| `UH_CLI_BIN` | Path to `uh` CLI binary for Hermes plugin. |
+| `UH_READ_TIMEOUT_S` | Hermes plugin read command timeout in seconds. |
+| `UH_RUN_TIMEOUT_S` | Hermes plugin mission run timeout in seconds. |
+| `UH_PLUGIN_URL` | Base API URL for Hermes plugin runs. |
+| `HONCHO_API_KEY` | Authentication key for Honcho persistent memory. |
+| `HONCHO_ENABLED` | Boolean flag (`true` or `false`) controlling Honcho memory. |
+| `HONCHO_SEARCH_LIMIT` | Maximum snippets returned by Honcho search queries. |
+| `HONCHO_TOOL_PREVIEW_LENGTH` | Character cap per snippet in Honcho search results. |
+| `UH_OPENSANDBOX_SHELL` | Shell executable for OpenSandbox command templates on Windows. |
+| `UH_OPENSANDBOX_DELETE_COMMAND` | Teardown command template for container sandboxes. |
+| `UH_OPENSANDBOX_LIFECYCLE_TIMEOUT_MS` | Timeout in milliseconds for container sandbox creation and deletion. |
+
+## 7. Command proof table
+
+Every command and flag mentioned in this guide is verified against the built CLI help output:
+
+| Command and flag invocation | Exact line from built CLI help output |
+|---|---|
+| `uh init` | `init [options]                  Initialize a .harness project in the current or specified directory` |
+| `uh init --root <path>` | `--root <path>  Root directory to initialize (default: cwd)` |
+| `uh init --force` | `--force        Overwrite existing .harness/project.yaml` |
+| `uh validate` | `validate [options] [file]       Validate a harness YAML artifact (and optionally drift-detect under --repair / --json)` |
+| `uh validate [file]` | `file             Path to YAML file (default: .harness/project.yaml)` |
+| `uh validate --root <path>` | `--root <path>    Root directory (default: cwd)` |
+| `uh validate --all-workflows` | `--all-workflows  Validate all workflow profiles` |
+| `uh validate --all-missions` | `--all-missions   Validate all mission files` |
+| `uh validate --repair` | `--repair         Run drift detection with auto-repair (idempotent)` |
+| `uh validate --strict-spec` | `--strict-spec    Run drift detection; spec-stale issues are errors (default: warn)` |
+| `uh validate --json` | `--json           Emit drift detection output as JSON instead of human text` |
+| `uh validate --judge` | `--judge          Grade spec adherence with an LLM (requires --spec + a hermes-proxy runtime)` |
+| `uh validate --spec <path>` | `--spec <path>    Spec file to judge (with --judge)` |
+| `uh validate --base <ref>` | `--base <ref>     Base ref for the judge diff (default: dev)` |
+| `uh status` | `status [options]                Report the current state of the harness project (use --json for the LLM-less query mode)` |
+| `uh status --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh status --cwd <path>` | `--cwd <path>   Override the working directory used for resolving the project root` |
+| `uh status --json` | `--json         Emit the UH-78 status JSON document instead of human text` |
+| `uh observatory` | `observatory                     Read Delivery Observatory projections` |
+| `uh observatory snapshot` | `snapshot [options]  Emit a delivery-observatory.v1 safe local snapshot` |
+| `uh observatory snapshot --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh observatory snapshot --json` | `--json         Emit JSON (required for the v1 contract)` |
+| `uh verify` | `verify [options] <mission-id>   Run a mission's required verification checks and write verification.yaml` |
+| `uh verify <mission-id>` | `mission-id         Mission id` |
+| `uh verify --root <path>` | `--root <path>      Root directory (default: cwd)` |
+| `uh verify --timeout-ms <ms>` | `--timeout-ms <ms>  Verification command timeout in milliseconds (default: 30000)` |
+| `uh verify --no-sandbox` | `--no-sandbox       Force checks to run in the harness root instead of auto-routing into the bound sandbox worktree` |
+| `uh promote` | `promote [options] <mission-id>  Write a safe promotion record for a mission` |
+| `uh promote <mission-id>` | `mission-id             Mission id` |
+| `uh promote --root <path>` | `--root <path>          Root directory (default: cwd)` |
+| `uh promote --approved-by <name>` | `--approved-by <name>   Approver name` |
+| `uh promote --decision <decision>` | `--decision <decision>  Promotion decision: promoted, rejected, or deferred (default: "promoted")` |
+| `uh promote --change <path>` | `--change <path>        Changed path to include in the promotion record (default: [])` |
+| `uh promote --sandbox-id <id>` | `--sandbox-id <id>      Sandbox id associated with this promotion` |
+| `uh propose` | `propose [options] [id]          Generate a mission packet from request/issue metadata or a .spec.md file` |
+| `uh propose [id]` | `id                                 Mission id (defaults to spec front-matter id when --from is set)` |
+| `uh propose --from <spec.md>` | `--from <spec.md>                   Load mission fields from a uh.spec.v0 markdown spec` |
+| `uh propose --title <title>` | `--title <title>                    Mission title (required without --from)` |
+| `uh propose --workflow <profile>` | `--workflow <profile>               Workflow profile (default: spec-first-feature with --from)` |
+| `uh propose --objective <text>` | `--objective <text>                 Mission objective (defaults to spec ## Goal with --from)` |
+| `uh propose --priority <priority>` | `--priority <priority>              Mission priority (default: medium)` |
+| `uh propose --issue <provider:id[:url]>` | `--issue <provider:id[:url]>        Issue ref; repeatable (default: [])` |
+| `uh propose --read-first <path>` | `--read-first <path>                Read-first context path; repeatable (default: [])` |
+| `uh propose --source-link <url>` | `--source-link <url>                Source link; repeatable (default: [])` |
+| `uh propose --repo-root <path>` | `--repo-root <path>                 Repository root recorded in mission context` |
+| `uh propose --constraint <text>` | `--constraint <text>                Mission constraint; repeatable (default: [])` |
+| `uh propose --required-skill <name>` | `--required-skill <name>            Required skill; repeatable (default: [])` |
+| `uh propose --suggested-skill <name>` | `--suggested-skill <name>           Suggested skill; repeatable (default: [])` |
+| `uh propose --expected-output <path>` | `--expected-output <path>           Expected output file path; repeatable (default: [])` |
+| `uh propose --completion <text>` | `--completion <text>                Completion criterion; repeatable (default: [])` |
+| `uh propose --required-check <name[=command]>` | `--required-check <name[=command]>  Required verification check; repeatable.` |
+| `uh propose --review-gate <name>` | `--review-gate <name>               Review gate; repeatable (default: [])` |
+| `uh propose --sandbox-backend <name>` | `--sandbox-backend <name>           Sandbox backend (default: git-worktree)` |
+| `uh propose --promotion-policy <name>` | `--promotion-policy <name>          Promotion policy (default: human-approved)` |
+| `uh propose --output <path>` | `--output <path>                    Explicit output path (default: .harness/missions/<id>/mission.yaml)` |
+| `uh propose --root <path>` | `--root <path>                      Root directory (default: cwd)` |
+| `uh propose --force` | `--force                            Overwrite existing mission file` |
+| `uh spec scaffold` | `scaffold [options]         Generate starter tests from uh.spec.v0 acceptance criteria` |
+| `uh spec scaffold --from <path>` | `--from <path>  Path to .spec.md file` |
+| `uh spec scaffold --lang <lang>` | `--lang <lang>  Target language: ts | py` |
+| `uh spec scaffold --out <path>` | `--out <path>   Output test file path` |
+| `uh spec template` | `template [options] [name]  Print a starter uh.spec.v0 spec template (feature | epic)` |
+| `uh spec template [name]` | `name          Template name; omit (or --list) to list available templates` |
+| `uh spec template --out <path>` | `--out <path>  Write the template to a file instead of stdout` |
+| `uh spec template --list` | `--list        List available templates` |
+| `uh adapter list` | `list [options]             List configured adapter manifests` |
+| `uh adapter list --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh adapter check` | `check [options] [runtime]  Check if a runtime adapter is available and configured` |
+| `uh adapter check [runtime]` | `runtime        Runtime id to check; defaults to every configured adapter` |
+| `uh adapter check --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh adapter add` | `add [options] <runtime>    Write a built-in adapter manifest template into .harness/adapters/` |
+| `uh adapter add <runtime>` | `runtime        Runtime template id (one of: anthropic, claude-code, codex, command-code, hermes, hermes-proxy, oh-my-pi, openrouter, pi)` |
+| `uh adapter add --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh adapter add --force` | `--force        Overwrite an existing manifest at the same path` |
+| `uh adapter capabilities` | `capabilities [options]     Show adapter capability manifests (tools, sandbox, cost class, context window)` |
+| `uh adapter capabilities --json` | `--json         Emit a JSON array for tooling` |
+| `uh adapter capabilities --probe` | `--probe        Live-probe hermes-proxy /capabilities and merge over the static manifest` |
+| `uh adapter capabilities --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh adapter cost-forecast` | `cost-forecast [options]    Forecast token cost for a mission from its run history (heuristic fallback)` |
+| `uh adapter cost-forecast --mission <id>` | `--mission <id>       Mission id` |
+| `uh adapter cost-forecast --adapter <adapter>` | `--adapter <adapter>  Adapter id or 'auto' (default: "auto")` |
+| `uh adapter cost-forecast --root <path>` | `--root <path>        Root directory (default: cwd)` |
+| `uh adapter cost-forecast --json` | `--json               Emit JSON` |
+| `uh mission review-prepare` | `review-prepare [options] <id>           Capture complete review inputs and emit an advisory independent-review mission; does not start a runtime` |
+| `uh mission review-prepare <id>` | `id                    New review mission id` |
+| `uh mission review-prepare --sources <json>` | `--sources <json>      JSON array of {missionId, workspaceRoot?}; roots default to each source mission's bound workspace` |
+| `uh mission review-prepare --runtime <runtime>` | `--runtime <runtime>   oh-my-pi, command-code, or claude-code` |
+| `uh mission review-prepare --model <model>` | `--model <model>       Explicit independent reviewer model` |
+| `uh mission review-prepare --workflow <profile>` | `--workflow <profile>  Review workflow (default: "research-docs")` |
+| `uh mission review-prepare --root <path>` | `--root <path>         Root directory (default: cwd)` |
+| `uh mission review-collect` | `review-collect [options] <id>           Validate review provenance and evidence; never grants human acceptance or promotes source work` |
+| `uh mission review-collect <id>` | `id             Review mission id` |
+| `uh mission review-collect --root <path>` | `--root <path>  Canonical project root (default: cwd)` |
+| `uh mission create` | `create [options] <id>                   Create a scaffold mission packet` |
+| `uh mission create <id>` | `id                    Mission id` |
+| `uh mission create --title <title>` | `--title <title>       Mission title` |
+| `uh mission create --workflow <profile>` | `--workflow <profile>  Workflow profile` |
+| `uh mission create --objective <text>` | `--objective <text>    Mission objective` |
+| `uh mission create --root <path>` | `--root <path>         Root directory (default: cwd)` |
+| `uh mission create --force` | `--force               Overwrite existing mission.yaml` |
+| `uh mission new` | `new [options] <id>                      Scaffold mission.yaml (and optionally a companion design.md)` |
+| `uh mission new <id>` | `id                    Mission id` |
+| `uh mission new --title <title>` | `--title <title>       Mission title` |
+| `uh mission new --workflow <profile>` | `--workflow <profile>  Workflow profile` |
+| `uh mission new --objective <text>` | `--objective <text>    Mission objective` |
+| `uh mission new --design` | `--design              Also scaffold a companion design.md (UH-75)` |
+| `uh mission new --design-path <path>` | `--design-path <path>  Override the design.md filename relative to the mission directory` |
+| `uh mission new --root <path>` | `--root <path>         Root directory (default: cwd)` |
+| `uh mission new --force` | `--force               Overwrite existing mission.yaml and design.md` |
+| `uh mission show` | `show [options] <mission-id>             Show a mission's metadata and design.md companion when present` |
+| `uh mission show <mission-id>` | `mission-id     Mission id` |
+| `uh mission show --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh mission verdict` | `verdict [options] <mission-id> <value>  Record a manual verdict (pass | needs-attention | needs-remediation) on a mission` |
+| `uh mission verdict <mission-id>` | `mission-id           Mission id` |
+| `uh mission verdict <value>` | `value                Verdict value: pass | needs-attention | needs-remediation` |
+| `uh mission verdict --rationale <text>` | `--rationale <text>   Free-text rationale (required for non-pass)` |
+| `uh mission verdict --missiondir <path>` | `--missiondir <path>  Override the mission directory (default: .harness/missions/<id>)` |
+| `uh mission verdict --root <path>` | `--root <path>        Root directory (default: cwd)` |
+| `uh mission dry-run` | `dry-run [options] [file]                Show what command would be executed without running it` |
+| `uh mission dry-run [file]` | `file                 Mission file path` |
+| `uh mission dry-run --runtime <runtime>` | `--runtime <runtime>  Runtime to use (default: hermes)` |
+| `uh mission dry-run --root <path>` | `--root <path>        Root directory (default: cwd)` |
+| `uh mission dry-run --no-sandbox` | `--no-sandbox         Do not auto-route into the mission's bound sandbox worktree` |
+| `uh mission dry-run --force` | `--force              Bypass mission capability matching for this runtime` |
+| `uh mission run` | `run [options] [file]                    Execute a mission against a configured runtime` |
+| `uh mission run [file]` | `file                               Mission file path` |
+| `uh mission run --runtime <runtime>` | `--runtime <runtime>                Runtime to use (default: hermes)` |
+| `uh mission run --root <path>` | `--root <path>                      Root directory (default: cwd)` |
+| `uh mission run --no-sandbox` | `--no-sandbox                       Do not auto-route into the mission's bound sandbox worktree` |
+| `uh mission run --force` | `--force                            Bypass mission capability matching for this runtime` |
+| `uh mission run --runtime-config-overrides <json>` | `--runtime-config-overrides <json>  JSON object of runtime_config overrides applied on top of the mission file (e.g. '{"model":"gpt-5"}')` |
+| `uh mission run --run-id <id>` | `--run-id <id>                      Explicit run id; auto-generated if omitted` |
+| `uh mission run --auto` | `--auto                             Auto-select the cheapest installed adapter that satisfies the mission's runtime_requirements` |
+| `uh mission run --explain` | `--explain                          With --auto, print the adapter decision matrix` |
+| `uh mission cancel` | `cancel [options]                        Cancel an owned local mission run; use --plugin-url only for plugin-managed runs` |
+| `uh mission cancel --mission <id>` | `--mission <id>      Mission id (validated; run lookup uses --run-id)` |
+| `uh mission cancel --run-id <id>` | `--run-id <id>       Run id to cancel` |
+| `uh mission cancel --root <path>` | `--root <path>       Root directory (default: cwd)` |
+| `uh mission cancel --plugin-url <url>` | `--plugin-url <url>  Explicit Hermes plugin API base URL for plugin-managed runs` |
+| `uh mission run-all` | `run-all [options] <mission-id>          Run a mission across multiple adapter runtimes and produce a side-by-side comparison` |
+| `uh mission run-all <mission-id>` | `mission-id         Mission id (must exist in .harness/missions/)` |
+| `uh mission run-all --runtimes <list>` | `--runtimes <list>  Comma-separated runtime list (default: every active adapter)` |
+| `uh mission run-all --root <path>` | `--root <path>      Root directory (default: cwd)` |
+| `uh mission run-all --serial` | `--serial           Run runtimes sequentially instead of in parallel` |
+| `uh mission run-all --force` | `--force            Bypass mission capability matching for selected runtimes` |
+| `uh mission run-team` | `run-team [options] <mission-id>         Run resource-bounded worker waves in separate worktrees, then mechanically integrate and verify; no leader model is invoked` |
+| `uh mission run-team <mission-id>` | `mission-id             Mission id (must exist in .harness/missions/, with team shape)` |
+| `uh mission run-team --root <path>` | `--root <path>          Root directory (default: cwd)` |
+| `uh mission run-team --base-ref <ref>` | `--base-ref <ref>       Base git ref for worker / leader worktrees (default: HEAD)` |
+| `uh mission run-team --retain` | `--retain               Preserve worktrees on success (default: cleanup on PASS, preserve on FAIL)` |
+| `uh mission run-team --strategy <strategy>` | `--strategy <strategy>  Leader integration strategy: merge|cherry-pick|rebase (default: merge) (default: "merge")` |
+| `uh sandbox create` | `create [options] <id>   Create a new sandbox bound to a mission` |
+| `uh sandbox create <id>` | `id                Sandbox id` |
+| `uh sandbox create --mission <id>` | `--mission <id>    Mission id this sandbox belongs to` |
+| `uh sandbox create --base <ref>` | `--base <ref>      Base git ref to branch from (default: HEAD)` |
+| `uh sandbox create --backend <name>` | `--backend <name>  Sandbox backend: git-worktree (default), directory, or container (OpenSandbox-configured; see docs/runbooks/container-sandbox.md)` |
+| `uh sandbox create --root <path>` | `--root <path>     Root directory (default: cwd)` |
+| `uh sandbox list` | `list [options]          List registered sandboxes` |
+| `uh sandbox list --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh sandbox status` | `status [options] <id>   Show a sandbox's metadata and working tree status` |
+| `uh sandbox status <id>` | `id             Sandbox id` |
+| `uh sandbox status --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh sandbox discard` | `discard [options] <id>  Remove a sandbox worktree and registry entry` |
+| `uh sandbox discard <id>` | `id             Sandbox id` |
+| `uh sandbox discard --force` | `--force        Discard even if the worktree has uncommitted changes` |
+| `uh sandbox discard --keep-branch` | `--keep-branch  Preserve the git branch after removing the worktree` |
+| `uh sandbox discard --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh skill add` | `add [options] <dir>   Register a skill from a directory containing SKILL.md` |
+| `uh skill add <dir>` | `dir            Path to skill directory containing SKILL.md` |
+| `uh skill add --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh skill list` | `list [options]        List registered skills` |
+| `uh skill list --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh skill check` | `check [options] <id>  Re-validate an indexed skill against its on-disk SKILL.md` |
+| `uh skill check <id>` | `id             Skill id` |
+| `uh skill check --root <path>` | `--root <path>  Root directory (default: cwd)` |
+| `uh tui` | `tui [options] [command]                 Open the interactive terminal UI (Mission Control)` |
+| `uh tui --root <path>` | `--root <path>                    Root directory (default: cwd)` |
+| `uh tui --once` | `--once                           Render one frame and exit (CI / smoke / docs)` |
+| `uh tui --screenshot <path>` | `--screenshot <path>              Capture one deterministic text frame to PATH (CI / docs)` |
+| `uh tui --screenshot-size <cols>x<rows>` | `--screenshot-size <cols>x<rows>  Screenshot frame size (default: 120x36)` |
+| `uh tui screenshot` | `screenshot [options]             Render a single TUI view to ANSI text (CI / docs)` |
+| `uh tui screenshot --view <name>` | `--view <name>         View to capture: overview | missions | sandboxes | workflows` |
+| `uh tui screenshot --out <path>` | `--out <path>          Output file path; use `-` or omit for stdout` |
+| `uh tui screenshot --root <path>` | `--root <path>         Root directory (default: cwd)` |
+| `uh tui screenshot --size <cols>x<rows>` | `--size <cols>x<rows>  Frame size (default: 120x36)` |
diff --git a/docs/research/acp-notes.md b/docs/research/acp-notes.md
new file mode 100644
index 0000000..fa01c5e
--- /dev/null
+++ b/docs/research/acp-notes.md
@@ -0,0 +1,24 @@
+# ACP notes (read 2026-09-21, agentclientprotocol.com docs bundle, 124 pages)
+
+## State of the protocol
+- v1 stable; JSON-RPC 2.0 over stdio, newline-delimited, agent is a subprocess of the client. Streamable HTTP/WebSocket transport is a draft RFD with a Transports Working Group. stdio is the only SHOULD.
+- v2 published as Draft on 2026-07-20. Version negotiated at initialize; v1 and v2 can be served side by side.
+- Stabilized in v1 since launch (via RFDs): session/list, session/resume, session/close, session/delete, logout, request cancellation, session usage (context size + cumulative cost), message IDs, tool-call names, elicitation, session config options (incl. model category), additional workspace roots, implementation info, ACP Registry. Rust and TypeScript SDKs are 1.0.
+- Open RFDs relevant to UH: proxy chains (conductor + proxy/successor), MCP-over-ACP, end-turn token usage, session compaction, session fork, configurable LLM providers.
+
+## Who speaks it
+Agents: Codex CLI (agentclientprotocol/codex-acp), Claude Agent (zed-industries/claude-agent-acp), Hermes Agent, Pi (pi-acp), OpenCode, Gemini CLI, Qwen Code, Goose, Cursor, Copilot CLI, Kimi CLI, Kiro, OpenHands, Cline, Junie, Mistral Vibe, Docker cagent, Factory Droid, ~40 total. oh-my-pi ships `omp acp` (seen in `omp --help`; not in the ACP list).
+Clients: Zed, JetBrains, VS Code extensions, neovim, Emacs, plus a class that matters to UH: orchestrators and gateways built on ACP (Jockey, Codeg, CompozyOS, Kronos scheduler, Remote Agent Server async Task API, AgentConnect, Kepler).
+
+## v2 changes that matter
+- Prompt response acknowledges insertion (returns messageId); session/update flows at any time; agent reports idle. Enables queueing, steering, background work, multiple observers. This is the mid-run steering channel the UH roadmap lacks.
+- Tool calls, messages, terminal output are upserts patched by stable id; tool-call content streams.
+- Diffs become structured file changes (add/delete/modify/move/copy/binary) with optional git_patch.
+- session/load removed; session/resume does both. Session modes become config options.
+- Client fs/* and terminal/* methods and capabilities are REMOVED: "has not been widely adopted... many Agents are moving toward their own sandboxing and execution configuration."
+
+## Consequences for UH
+1. UH as ACP client (one generic adapter): every supported runtime already has an ACP face. One adapter would replace per-runtime stdout parsers for events, tool calls, usage/cost, cancel, resume. Risk: adapters via third-party shims (codex-acp, claude-agent-acp, pi-acp) add a dependency and may lag native event detail (route attestation, native session ids). Needs a fidelity comparison against current native parsing before replacing anything.
+2. UH as ACP agent (server): `uh acp` over stdio makes UH drivable by any ACP client/orchestrator. A mission run maps to a session; events.ndjson maps to session/update; runtime-control usage maps to session usage; cancel maps to session/cancel.
+3. UH as conductor/proxy: the proxy-chain RFD describes UH's supervisory position exactly (sit between client and agent, intercept, inject, filter, create sub-sessions). It is an RFD with a Rust prototype, not stable. Do not build on it yet; track it.
+4. The guard cannot move to ACP. Permission requests are agent-initiated and v2 drops client fs/terminal. Tool Guard hooks + sandbox stay the enforcement layer; ACP permission requests are at most an additional signal.
diff --git a/docs/research/landscape-register.json b/docs/research/landscape-register.json
new file mode 100644
index 0000000..49a29ed
--- /dev/null
+++ b/docs/research/landscape-register.json
@@ -0,0 +1,1707 @@
+{
+ "contract_version": "uh.landscape-register.v0",
+ "generated": "2026-09-15",
+ "rows": [
+  {
+   "system": "Claude Code",
+   "build_item": "B1",
+   "what_it_does": "Custom subagents declare a model, tools, permission mode, maxTurns, effort, and other frontmatter; each runs in an independent context window.",
+   "source_url": "https://code.claude.com/docs/en/sub-agents",
+   "version_or_commit": "v2.1.261+ (version references visible; page otherwise current)",
+   "date_checked": "2026-09-15",
+   "quote": "The `--agents` flag accepts JSON with a `prompt` field plus these [frontmatter] fields: ... `maxTurns` ... `effort` ...",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Declarative per-worker model, tools, effort and turn cap map well; budgets beyond turns are absent.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B2",
+   "what_it_does": "Stop and StopFailure hooks run at turn boundaries, and TeammateIdle can send feedback that keeps a teammate working; the page documents no denial-budget or repeated-failure supervisor.",
+   "source_url": "https://code.claude.com/docs/en/hooks",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "`TeammateIdle`: runs when a teammate is about to go idle. Exit with code 2 to send feedback and keep the teammate working.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Lifecycle hooks provide a seam, but stop reasons and resume policy remain application logic.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B3",
+   "what_it_does": "PreToolUse hooks match tool names and can return permissionDecision deny plus a human-readable reason before execution.",
+   "source_url": "https://code.claude.com/docs/en/hooks",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "The `PreToolUse` event fires. The hook can deny the call, but staying silent doesn't approve it.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "A per-call deny hook exists; UH still needs path-only normalization and tamper evidence.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B4",
+   "what_it_does": "Sandbox credential rules protect declared files and environment variables, while denyRead/allowRead path rules control filesystem visibility.",
+   "source_url": "https://code.claude.com/docs/en/sandboxing",
+   "version_or_commit": "v2.1.187+ for credentials; current page",
+   "date_checked": "2026-09-15",
+   "quote": "The `sandbox.credentials` setting declares credential files and environment variables to protect from sandboxed commands.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Credential and path policy exist, but per-worker identity/scoping and controller preflight are not one contract.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B8",
+   "what_it_does": "Agent teams use independent context windows, direct teammate messaging, a shared task list, and hooks for TeammateIdle/TaskCompleted quality gates.",
+   "source_url": "https://code.claude.com/docs/en/agent-teams",
+   "version_or_commit": "v2.1.178 (explicitly stated)",
+   "date_checked": "2026-09-15",
+   "quote": "Agent teams let you coordinate multiple Claude Code instances working together.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Multiple workers and wave-like task coordination are native; model-family diversity is configurable but not enforced.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B9",
+   "what_it_does": "In plan mode a teammate sends a plan approval request to the lead, but Claude Code approves it as soon as it arrives without lead review.",
+   "source_url": "https://code.claude.com/docs/en/agent-teams",
+   "version_or_commit": "current docs (version references visible)",
+   "date_checked": "2026-09-15",
+   "quote": "When a teammate finishes planning, it sends a plan approval request to the lead. Claude Code approves the plan in the lead's session as soon as the request arrives, without the lead reviewing it.",
+   "fetch_status": "fetched",
+   "uh_stance": "reject",
+   "stance_reason": "This explicitly fails a human promotion gate.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "B11",
+   "what_it_does": "In-process and split-pane teams let the lead select a teammate and type a direct message; Ctrl+T exposes the task list.",
+   "source_url": "https://code.claude.com/docs/en/agent-teams",
+   "version_or_commit": "current docs (version references visible)",
+   "date_checked": "2026-09-15",
+   "quote": "Each teammate is a full, independent Claude Code session. You can message any teammate directly to give additional instructions, ask follow-up questions, or redirect their approach.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Direct steering is documented and interactive.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "X3",
+   "what_it_does": "Bash sandboxing enforces filesystem/network restrictions at the OS level; failIfUnavailable can convert unsupported/missing sandbox into a hard failure.",
+   "source_url": "https://code.claude.com/docs/en/sandboxing",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "By default, if the sandbox cannot start because dependencies are missing or the platform is unsupported, Claude Code shows a warning and runs commands without sandboxing.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Isolation tiers and fail-closed mode exist, but native Windows is unsupported and the default is fail-open.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Claude Code",
+   "build_item": "X4",
+   "what_it_does": "SessionStart fires on session begin or resume, and worktree/task state persists for resumed sessions.",
+   "source_url": "https://code.claude.com/docs/en/hooks",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "`SessionStart` | When a session begins or resumes",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Resume lifecycle is explicit; UH-specific checkpoint/contract restoration still must be layered.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "B1",
+   "what_it_does": "Codex supports subagents for focused delegated work and configuration profiles can select model and effort; the fetched CLI page exposes delegation but not per-worker budgets.",
+   "source_url": "https://learn.chatgpt.com/docs/codex/cli",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "**Split up a larger investigation** — `subagents`: Ask Codex to delegate focused work to specialized agents, then bring their findings back into the main terminal session.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Delegation exists, but a complete per-worker contract is not documented on this page.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "B3",
+   "what_it_does": "Codex config exposes approval_policy and sandbox_mode; sandbox policy distinguishes read-only, workspace-write, and danger-full-access.",
+   "source_url": "https://learn.chatgpt.com/docs/config-file/config-reference",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "sandbox_mode | read-only | workspace-write | danger-full-access | Sandbox policy for filesystem and network access during command execution.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Strong execution policy exists, but path-only substitute deny reasons/tamper detection are not established.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "B4",
+   "what_it_does": "workspace-write can add writable roots, and project config is loaded only for trusted projects; this scopes filesystem access but is not a credential-per-worker scheme.",
+   "source_url": "https://learn.chatgpt.com/docs/config-file/config-reference",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Codex loads project-scoped config files only when you trust the project.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Trust and writable-root controls are useful; credential deny-read preflight remains missing.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "B8",
+   "what_it_does": "The config reference supports review_model and the CLI supports dedicated review against changes without modifying the tree.",
+   "source_url": "https://learn.chatgpt.com/docs/codex/cli",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Run a dedicated review against uncommitted changes, a commit, or a base branch. Codex reports prioritized findings without modifying your working tree.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Review is first-class; multiple model-family reviewer waves are not guaranteed.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "B9",
+   "what_it_does": "approval_policy controls pauses before command execution and approvals_reviewer can be user or auto_review.",
+   "source_url": "https://learn.chatgpt.com/docs/config-file/config-reference",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "approvals_reviewer | user | auto_review | Who reviews eligible approval prompts under `on-request` or granular approval policies.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Human reviewer identity is representable, but promotion authority and immutable rejection semantics are not specified.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "X3",
+   "what_it_does": "Codex provides read-only/workspace-write/danger-full-access sandbox modes plus native Windows sandbox selection.",
+   "source_url": "https://learn.chatgpt.com/docs/config-file/config-reference",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "windows.sandbox | unelevated | elevated | Windows-only native sandbox mode when running Codex natively on Windows.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Explicit isolation tiers cover the cross-platform execution boundary.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenAI Codex CLI",
+   "build_item": "X4",
+   "what_it_does": "The CLI documents codex resume for reopening recent or older local chats and supports repeatable codex exec workflows.",
+   "source_url": "https://learn.chatgpt.com/docs/codex/cli",
+   "version_or_commit": "current docs (meta version not displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "`codex resume`: Reopen a recent chat from the current repository, or search across local chats when you need to return to older work.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Session resume is native; supervisor note restoration is outside the documented primitive.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Cursor CLI",
+   "build_item": "B2",
+   "what_it_does": "Cursor has interactive, plan, and ask modes plus non-interactive print mode; sessions can continue/resume, but no denial/failure supervisor loop is documented.",
+   "source_url": "https://cursor.com/docs/cli/overview.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Resume previous conversations: `agent ls`, `agent resume`, `agent --continue`, `agent --resume=\"chat-id-here\"`",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Resume exists, while stop-reason policy and bounded retry are absent.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Cursor CLI",
+   "build_item": "B3",
+   "what_it_does": "The CLI exposes a sandbox flag with enabled/disabled modes and a menu to control network access, but no documented per-tool path matcher.",
+   "source_url": "https://cursor.com/docs/cli/overview.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Configure command execution settings with `/sandbox` or the `--sandbox <mode>` flag (`enabled` or `disabled`).",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Coarse sandbox toggle only; UH needs path-only matching and deny explanations.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Cursor CLI",
+   "build_item": "B8",
+   "what_it_does": "Print mode can review changes with an output format, and Cloud Agent handoff continues work asynchronously.",
+   "source_url": "https://cursor.com/docs/cli/overview.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Use print mode for non-interactive scenarios like scripts, CI pipelines, or automation.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Review/remote continuation are present, but reviewer breadth and independent model families are not described.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Cursor CLI",
+   "build_item": "B11",
+   "what_it_does": "Interactive mode lets a user approve commands and Cloud Agent handoff moves the conversation to a running cloud agent.",
+   "source_url": "https://cursor.com/docs/cli/overview.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Start a conversational session with the agent to describe your goals, review proposed changes, and approve commands.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "User steering/approval is interactive, but a documented running-worker control channel is thin.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Cursor CLI",
+   "build_item": "X4",
+   "what_it_does": "agent resume/continue reopen prior conversations by latest or chat ID.",
+   "source_url": "https://cursor.com/docs/cli/overview.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Pick up your Cloud Agent tasks on web or mobile at `cursor.com/agents`.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Persistence/resume is available, though durable artifact contracts are not specified.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "B1",
+   "what_it_does": "The README describes first-class task fan-out into isolated worktrees, typed results, and per-subagent tool surfaces.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Split a job across workers and get typed results back.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Typed worker outputs and isolation directly map to UH contracts; the README does not enumerate all budget fields.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "B3",
+   "what_it_does": "Stream rules use regex matches to abort a stream, inject a rule, and retry from the same point.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "A regex match aborts the stream mid-token, injects the rule as a system reminder, and retries from the same point.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Tamper/course-correction seam exists; per-tool path guard must be separately verified.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "B8",
+   "what_it_does": "A reviewer model runs in an advisor role, reads every main-agent turn, and injects notes inline.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Pair a reviewer model to the 'advisor' role and it reads every turn the main agent takes, injecting notes inline.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Independent reviewer is native; wave packets and multiple model families need adaptation.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "B11",
+   "what_it_does": "Agent Hub shows activity/usage, live transcripts, and controls to steer, revive, or kill workers.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Open one to read its live transcript, type a steering message, revive a parked worker, or kill a stuck one.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Direct steering and lifecycle control are explicit.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "B12",
+   "what_it_does": "The project publishes native install paths for macOS, Linux, and Windows and says completions derive from live CLI metadata.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "macOS · Linux · Windows · bun ≥ 1.3.14",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Cross-platform installation/path handling is explicit; artifact path semantics still need UH normalization.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-pi",
+   "build_item": "X4",
+   "what_it_does": "The README documents on-disk sessions and `--resume` completion against sessions, plus isolated worktrees for tasks.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "`--resume` against your on-disk sessions.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Session persistence is native.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Pi",
+   "build_item": "B5",
+   "what_it_does": "Pi documents a session/state-management core and its repository highlights tests, tooling, and reproducible release source archives, but no deliverable scan contract.",
+   "source_url": "https://github.com/badlogic/pi-mono",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "The toolkit is extensible but the named deliverable invariants are not a built-in mechanism.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Pi",
+   "build_item": "X4",
+   "what_it_does": "Pi is an agent loop with state management and session benchmark/storage packages; the public README also directs users to persistent session tooling.",
+   "source_url": "https://github.com/badlogic/pi-mono",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "State/session primitives exist, but the exact resume contract requires source-level follow-up.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Pi",
+   "build_item": "X3",
+   "what_it_does": "Pi explicitly says filesystem, process, network, and credential permissions are inherited from the launching process and recommends external sandboxing/containerization.",
+   "source_url": "https://github.com/badlogic/pi-mono",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Pi does not include a built-in permission system for restricting filesystem, process, network, or credential access.",
+   "fetch_status": "fetched",
+   "uh_stance": "reject",
+   "stance_reason": "The documented default is host permissions, not an isolation tier.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "B2",
+   "what_it_does": "Hermes approval timeout denies by default, cron/unattended modes can deny instantly, and its hardline blocklist cannot be overridden.",
+   "source_url": "https://hermes-agent.nousresearch.com/docs/user-guide/security",
+   "version_or_commit": "current (Docusaurus version=current)",
+   "date_checked": "2026-09-15",
+   "quote": "When no response is given within the timeout, the command is denied by default (fail-closed).",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Fail-closed approval and hard stops map directly; repeated-failure/stall supervision remains external.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "B3",
+   "what_it_does": "Hermes applies case-insensitive fnmatch deny globs before YOLO/approval and returns BLOCKED without execution; it warns this is not a complete OS sandbox.",
+   "source_url": "https://hermes-agent.nousresearch.com/docs/user-guide/security",
+   "version_or_commit": "current (Docusaurus version=current)",
+   "date_checked": "2026-09-15",
+   "quote": "A denied command returns a BLOCKED error to the agent telling it not to retry or rephrase. Nothing runs.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Substitute-action deny reason and layered guard are strong; path-only filesystem matching is not the mechanism.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "B4",
+   "what_it_does": "Hermes lists MCP credential filtering and hardened backend path allowlists among its security layers.",
+   "source_url": "https://hermes-agent.nousresearch.com/docs/user-guide/security",
+   "version_or_commit": "current (Docusaurus version=current)",
+   "date_checked": "2026-09-15",
+   "quote": "MCP credential filtering — environment variable isolation for MCP subprocesses",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Credential filtering is present but per-worker scoping/preflight evidence is not shown.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "B11",
+   "what_it_does": "Hermes supports Ctrl+C/new-message interrupt-and-redirect in CLI and stop/new messages on gateway platforms.",
+   "source_url": "https://github.com/NousResearch/hermes-agent",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Interrupt current work | `Ctrl+C` or send a new message",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "A steering path exists across CLI and messaging.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "X3",
+   "what_it_does": "Hermes supports local, Docker, SSH, Singularity, Modal, Daytona, and Vercel Sandbox backends; container isolation is a documented layer.",
+   "source_url": "https://github.com/NousResearch/hermes-agent",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Runs anywhere, not just your laptop — Seven terminal backends — local, Docker, SSH, Singularity, Modal, Daytona, and Vercel Sandbox.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Multiple isolation backends exist, with backend-specific semantics.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Hermes Agent",
+   "build_item": "X4",
+   "what_it_does": "Hermes provides cross-session isolation and cron persistence paths, while `/new`, `/reset`, `/retry`, and `/undo` operate session state.",
+   "source_url": "https://hermes-agent.nousresearch.com/docs/user-guide/security",
+   "version_or_commit": "current (Docusaurus version=current)",
+   "date_checked": "2026-09-15",
+   "quote": "Cross-session isolation — sessions cannot access each other's data or state",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Session boundary is explicit; a supervisor resume note is not standardized.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "goose",
+   "build_item": "B3",
+   "what_it_does": "The public goose README establishes a native agent that can install, execute, edit, and test; no public fetched mechanism in scope documented path-level tool guards.",
+   "source_url": "https://github.com/block/goose",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "install, execute, edit, and test with any LLM",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Execution exists but the requested deny-reason/path matcher contract was not evidenced.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "goose",
+   "build_item": "X3",
+   "what_it_does": "goose runs as a native desktop/CLI/API agent on macOS, Linux, and Windows; the fetched README does not claim a sandbox boundary.",
+   "source_url": "https://github.com/block/goose",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "A native desktop app for macOS, Linux, and Windows. A full CLI for terminal workflows. An API to embed it anywhere.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Platform portability is clear, but isolation must be supplied/verified elsewhere.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenHands",
+   "build_item": "B2",
+   "what_it_does": "Agent Canvas starts conversations and automations, including schedules/webhooks, and Agent Server runs multiple agents; stop/retry supervisor semantics are not stated.",
+   "source_url": "https://github.com/All-Hands-AI/OpenHands",
+   "version_or_commit": "1.18.0 image example; current repo",
+   "date_checked": "2026-09-15",
+   "quote": "Create automations and workflows ... Run on a schedule or in response to webhook events",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Scheduling/dispatch exists but bounded denial/stall supervisor logic is not documented.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "OpenHands",
+   "build_item": "B8",
+   "what_it_does": "Agent Canvas can connect to OpenHands, Claude Code, Codex, Gemini, or any ACP agent backend, enabling heterogeneous review workers.",
+   "source_url": "https://github.com/All-Hands-AI/OpenHands",
+   "version_or_commit": "1.18.0 image example; current repo",
+   "date_checked": "2026-09-15",
+   "quote": "Use with OpenHands, Claude Code, Codex, Gemini, or any agent with Agent-Client Protocol (ACP).",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Backend diversity is native; review-wave breadth and packet contracts are not.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenHands",
+   "build_item": "B12",
+   "what_it_does": "The Docker backend guide gives distinct macOS/Linux and Windows PowerShell mount commands, mapping host project roots to `/projects`.",
+   "source_url": "https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "The backend ... can access any project under the mounted `/projects` path.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Cross-platform artifact/workspace mapping is documented.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "OpenHands",
+   "build_item": "X3",
+   "what_it_does": "Agent Canvas can run an agent backend in Docker with only mounted projects and settings exposed; the guide warns privileged mode weakens isolation.",
+   "source_url": "https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "The agent server can execute arbitrary shell commands inside the container.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Container boundary exists, with an explicit privileged-mode risk.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "SWE-agent",
+   "build_item": "B1",
+   "what_it_does": "SWE-agent is governed by a single YAML configuration and accepts a user-selected language model; per-worker budget/seed contract is not exposed in README.",
+   "source_url": "https://github.com/SWE-agent/SWE-agent",
+   "version_or_commit": "main README as fetched; project warns mini-SWE-agent supersedes it",
+   "date_checked": "2026-09-15",
+   "quote": "Configurable & fully documented: Governed by a single `yaml` file",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Central configuration is a useful seed for worker contracts, but required fields are not unified.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "SWE-agent",
+   "build_item": "B5",
+   "what_it_does": "SWE-agent targets automated fixes in real repositories and benchmark batch mode; the fetched README does not specify artifact invariant scans.",
+   "source_url": "https://github.com/SWE-agent/SWE-agent",
+   "version_or_commit": "main README as fetched; project warns mini-SWE-agent supersedes it",
+   "date_checked": "2026-09-15",
+   "quote": "SWE-agent takes a GitHub issue and tries to automatically fix it",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Deliverable production exists, but UH scan invariants are not evidenced.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Aider",
+   "build_item": "B5",
+   "what_it_does": "Aider automatically lints/tests after edits and can fix detected problems; this is validation but not the requested path/secret/last-line deliverable scan.",
+   "source_url": "https://github.com/Aider-AI/aider",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Automatically lint and test your code every time aider makes changes.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Post-edit validation maps partially to deliverable scans.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Aider",
+   "build_item": "B12",
+   "what_it_does": "Aider provides Windows CI and documents terminal usage; the fetched README focuses on repo editing and Git rather than portable artifact-path normalization.",
+   "source_url": "https://github.com/Aider-AI/aider",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "aider is AI pair programming in your terminal",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Cross-platform use is implied by project workflows, but the UH artifact contract is not documented.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "E2B",
+   "build_item": "X1",
+   "what_it_does": "E2B sandboxes expose timeout, pause/resume, kill, and automatic pause on expiry; the lifecycle ends on timeout or OOM.",
+   "source_url": "https://docs.e2b.dev/sandbox.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "When their timeout expires, they can automatically pause to save resources — preserving their full state so you can resume at any time.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Lifecycle/resource termination is native; controller-loss process ownership is not guaranteed by this source.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "E2B",
+   "build_item": "X3",
+   "what_it_does": "E2B runs AI-generated code in secure isolated cloud sandboxes controlled through SDKs.",
+   "source_url": "https://github.com/e2b-dev/E2B",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "run AI-generated code in secure isolated sandboxes in the cloud",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Cloud isolation is the core product.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "E2B",
+   "build_item": "X4",
+   "what_it_does": "E2B pauses a sandbox and preserves full state indefinitely for later resume, with explicit timeout control.",
+   "source_url": "https://docs.e2b.dev/sandbox.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "pausing resets the runtime window, and your sandbox's full state is preserved indefinitely.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Persistence/resume is directly documented.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "alibaba/OpenSandbox",
+   "build_item": "B4",
+   "what_it_does": "OpenSandbox has a credential vault for secure outbound injection without exposing real secrets to workloads.",
+   "source_url": "https://github.com/opensandbox-group/OpenSandbox",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Credential Vault: Secure credential injection for sandbox outbound requests without exposing real secrets to workloads.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Secret injection boundary is explicit; per-worker identity/preflight remains to integrate.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "alibaba/OpenSandbox",
+   "build_item": "X1",
+   "what_it_does": "OpenSandbox command API accepts per-sandbox resource limits and lifecycle timeout, with distributed scheduling through Docker/Kubernetes runtimes.",
+   "source_url": "https://github.com/opensandbox-group/OpenSandbox",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Built-in lifecycle management ... local runs and large-scale distributed scheduling.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Resource/lifecycle controls exist; owned process tree and controller-loss kill need platform configuration.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "alibaba/OpenSandbox",
+   "build_item": "X3",
+   "what_it_does": "OpenSandbox supports Docker/Kubernetes runtimes and secure gVisor, Kata, and Firecracker runtimes; server startup validates availability and refuses missing configured runtimes.",
+   "source_url": "https://raw.githubusercontent.com/opensandbox-group/OpenSandbox/main/docs/guides/secure-container.md",
+   "version_or_commit": "main (raw source, moving)",
+   "date_checked": "2026-09-15",
+   "quote": "The server validates the configured runtime at startup and will refuse to start if the runtime is unavailable.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Fail-closed runtime selection and multiple isolation tiers map well.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Turso AgentFS",
+   "build_item": "B5",
+   "what_it_does": "AgentFS records every file operation, tool call, and state change in SQLite, enabling queryable history and audit-oriented scans.",
+   "source_url": "https://github.com/tursodatabase/agentfs",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Every file operation, tool call, and state change is recorded in a SQLite database file.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Audit trail supports deliverable verification, though named scan rules are UH-owned.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Turso AgentFS",
+   "build_item": "X4",
+   "what_it_does": "AgentFS stores files, state, and history in one SQLite file and supports snapshots/restoration for reproducibility.",
+   "source_url": "https://github.com/tursodatabase/agentfs",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Snapshot an agent's state at any point with cp agent.db snapshot.db. Restore it later to reproduce exact execution states",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Persistence/checkpoint primitive is explicit.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Daytona",
+   "build_item": "X1",
+   "what_it_does": "Daytona sandboxes allocate vCPU, RAM, and disk and expose lifecycle APIs; the public repo states development moved private and releases stopped after v0.190.0.",
+   "source_url": "https://github.com/daytonaio/daytona",
+   "version_or_commit": "v0.190.0 (license link; repository archived/no further releases)",
+   "date_checked": "2026-09-15",
+   "quote": "This repository is no longer maintained.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Resource controls exist, but re-verification must move to the private successor or current docs.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Daytona",
+   "build_item": "X3",
+   "what_it_does": "Daytona provides isolated composable computers with a dedicated kernel, filesystem, network stack, and allocated resources.",
+   "source_url": "https://github.com/daytonaio/daytona",
+   "version_or_commit": "v0.190.0",
+   "date_checked": "2026-09-15",
+   "quote": "full composable computers with complete isolation, a dedicated kernel, filesystem, network stack",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Strong sandbox primitive is documented.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Daytona",
+   "build_item": "X4",
+   "what_it_does": "Daytona snapshots preserve state for persistent agent operations across sessions.",
+   "source_url": "https://github.com/daytonaio/daytona",
+   "version_or_commit": "v0.190.0",
+   "date_checked": "2026-09-15",
+   "quote": "Our stateful environment snapshots enable persistent agent operations across sessions",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Persistence is native, though source continuity is now a recheck risk.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Modal Sandboxes",
+   "build_item": "X1",
+   "what_it_does": "Modal sandboxes have created/scheduled/started/finished lifecycle states, max lifetime, idle timeout, OOM termination, and explicit terminate.",
+   "source_url": "https://modal.com/docs/guide/sandboxes.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "Finished — The Sandbox has stopped running ... timeout or idle timeout was reached, or an out-of-memory condition occurred.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Lifecycle and resource stop reasons are explicit; controller-loss ownership is not.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Modal Sandboxes",
+   "build_item": "X3",
+   "what_it_does": "Modal describes Sandboxes as secure containers for executing untrusted user/agent code and supports runtime creation.",
+   "source_url": "https://modal.com/docs/guide/sandboxes.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "secure containers for executing untrusted user or agent code on Modal",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Isolation is the core primitive.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Modal Sandboxes",
+   "build_item": "X4",
+   "what_it_does": "Modal recommends Filesystem Snapshots to preserve state beyond 24 hours and restore into a subsequent Sandbox.",
+   "source_url": "https://modal.com/docs/guide/sandboxes.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "If you need a Sandbox to run for more than 24 hours, we recommend using Filesystem Snapshots to preserve its state",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Checkpoint/resume exists, with explicit lifetime boundary.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "kubernetes-sigs/agent-sandbox",
+   "build_item": "X1",
+   "what_it_does": "Agent Sandbox manages stateful singleton workloads with lifecycle operations including scheduled deletion, pausing, and resuming.",
+   "source_url": "https://github.com/kubernetes-sigs/agent-sandbox",
+   "version_or_commit": "v1.0.2 installation example; current repository",
+   "date_checked": "2026-09-15",
+   "quote": "Lifecycle Management: The Sandbox controller manages the lifecycle of the pod, including creation, scheduled deletion, pausing and resuming.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Controller lifecycle is native; per-worker memory/kill-on-controller-loss policy is Kubernetes-dependent.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "kubernetes-sigs/agent-sandbox",
+   "build_item": "X3",
+   "what_it_does": "Agent Sandbox is an orchestrator delegating low-level isolation to RuntimeClass-backed gVisor/Kata runtimes.",
+   "source_url": "https://github.com/kubernetes-sigs/agent-sandbox",
+   "version_or_commit": "v1.0.2 installation example; current repository",
+   "date_checked": "2026-09-15",
+   "quote": "It delegates low-level container isolation to secure \"Sandbox Runtimes\" (like gVisor or Kata Containers)",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Clear separation of orchestration and isolation tier.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "kubernetes-sigs/agent-sandbox",
+   "build_item": "X4",
+   "what_it_does": "Sandbox CRDs provide stable identity and persistent storage that survive restarts, with pause/resume lifecycle.",
+   "source_url": "https://github.com/kubernetes-sigs/agent-sandbox",
+   "version_or_commit": "v1.0.2",
+   "date_checked": "2026-09-15",
+   "quote": "Persistent Storage: Sandboxes can be configured with persistent storage that survives restarts.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Stateful resume primitive is explicit.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "B6",
+   "what_it_does": "No scoped system source fetched documents cost attribution by stop reason as a required first-class field; nearest systems expose generic usage/billing or sandbox lifecycle only.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "Agent Hub ... roster shows current activity and usage for every subagent.",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: cost attribution stop reason, usage by denial/stall/OOM, per-worker billing; no scoped source showed the complete join.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "B7",
+   "what_it_does": "No scoped system source fetched derives a memory cap from declared parallelism; resource limits are generally explicit per sandbox or platform.",
+   "source_url": "https://raw.githubusercontent.com/opensandbox-group/OpenSandbox/main/docs/guides/secure-container.md",
+   "version_or_commit": "main (raw source, moving)",
+   "date_checked": "2026-09-15",
+   "quote": "resourceLimits ... memory ...",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: memory cap derived parallelism, worker concurrency memory formula, agent budget allocation; found explicit limits, not derivation.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "B10",
+   "what_it_does": "No scoped system source fetched defines liveness from pending tool-call structure rather than event freshness; most lifecycle docs use idle/timeout/events.",
+   "source_url": "https://modal.com/docs/guide/sandboxes.md",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "A Sandbox is considered active if any of the following are true: ... an active command ... stdin ... open TCP connection",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: pending tool call liveness, event freshness heartbeat, stalled agent detector; found activity/timeout signals, not pending-structure liveness.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "B12",
+   "what_it_does": "No single scoped system source defines a portable artifact-path contract spanning Windows, POSIX, worktrees, and sandbox mounts; products document platform-specific mounts instead.",
+   "source_url": "https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker",
+   "version_or_commit": "current docs (no release version displayed)",
+   "date_checked": "2026-09-15",
+   "quote": "PowerShell uses backticks (`) for line continuation instead of backslashes.",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: cross-platform artifact path contract, Windows POSIX path normalization, portable worktree artifact; found platform-specific instructions, not one contract.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "X2",
+   "what_it_does": "No scoped system source fetched attests measured route/model/credential usage as an immutable per-worker record; several expose usage or telemetry separately.",
+   "source_url": "https://github.com/can1357/oh-my-pi",
+   "version_or_commit": "main README as fetched; moving branch",
+   "date_checked": "2026-09-15",
+   "quote": "the roster shows current activity and usage for every subagent",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: route attestation, measured usage attestation, immutable model/provider per worker; no complete evidence chain found.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Landscape search",
+   "build_item": "X1",
+   "what_it_does": "No scoped system source fetched combines owned controller process-tree tracking, a hard memory cap, and guaranteed kill on controller loss across local and remote backends.",
+   "source_url": "https://github.com/kubernetes-sigs/agent-sandbox",
+   "version_or_commit": "v1.0.2",
+   "date_checked": "2026-09-15",
+   "quote": "agent-sandbox follows the Kubernetes controller pattern",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched: controller loss kill process tree, supervisor-owned process group memory cap, cross-backend kill guarantee; found platform-specific lifecycle controllers only.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "B1",
+   "what_it_does": "Paperclip models agent roles, reporting lines, responsibilities, goals, and task ancestry. Issues carry company, project, goal, and parent links so assigned agents receive the organizational why.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "Goal Alignment — Every task traces back to the organization mission. Agents know what to do and why.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt goal ancestry and roles, but add explicit per-worker budgets and seed fields.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "B2",
+   "what_it_does": "Paperclip supports agent pause, resume, and terminate controls, plus watchdogs and automatic recovery for orphaned runs. Its governance section describes recovery actions and review gates rather than a denial-budget policy.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "Governance with rollback. Approval gates are enforced, config changes are revisioned, and bad changes can be rolled back safely.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse lifecycle controls but retain UH-specific repeated-failure, stall, and hard-stop semantics.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "B4",
+   "what_it_does": "Paperclip has instance and company secrets, encrypted local storage, and scoped secret injection for explicitly needing runs. It describes roles, permissions, and company boundaries for agents.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "Sensitive values stay out of prompts unless a scoped run explicitly needs them.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use scoped secret injection as a baseline, adding UH fail-closed path preflight and deny-read checks.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "B6",
+   "what_it_does": "Paperclip tracks token and cost data by company, agent, project, goal, issue, provider, and model. Budget policies have warning thresholds and hard stops, and overspend pauses agents and cancels queued work.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "Token and cost tracking by company, agent, project, goal, issue, provider, and model.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse attribution dimensions but add mandatory stop-reason attribution and unknown-cost states.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "B9",
+   "what_it_does": "Paperclip provides board approval workflows, review/approval stages, decision tracking, and audit logging. It presents approval gates as enforced governance rather than merely advisory review.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "Governance & Approvals — Board approval workflows, execution policies with review/approval stages, decision tracking, budget hard-stops.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "The enforced human-gate model directly matches promotion authority requirements.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "X5",
+   "what_it_does": "Paperclip uses DB-backed wakeup queues and tracked runs that produce structured logs, cost events, session state, and audit trails. Its issues and conversations persist across reboots.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "DB-backed wakeup queue with coalescing, budget checks, workspace resolution, secret injection, skill loading, and adapter invocation.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt durable queue and run state, retaining UH's explicit run/task/attempt identity contract.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Paperclip",
+   "build_item": "X8",
+   "what_it_does": "Paperclip documents opt-in OpenTelemetry server traces and an anonymous telemetry contract that excludes prompts, issue content, file paths, and secrets. Mutating actions and lifecycle events are recorded as durable activity.",
+   "source_url": "https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4",
+   "date_checked": "2026-09-15",
+   "quote": "No personal information, issue content, prompts, file paths, or secrets are ever collected.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "The explicit exclusion list is a strong evidence-schema privacy precedent.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Temporal",
+   "build_item": "B2",
+   "what_it_does": "Temporal durably records workflow event history so execution can resume after crashes or outages. Activities have retry policies and heartbeat details can checkpoint progress for a later attempt.",
+   "source_url": "https://docs.temporal.io/temporal",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6",
+   "date_checked": "2026-09-15",
+   "quote": "If a failure occurs, the Workflow Execution can resume from the last recorded event, ensuring that progress isn't lost.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt durable replay and activity recovery but implement UH-specific denial and stall policies above it.",
+   "recheck_trigger": "Temporal durable execution documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Temporal",
+   "build_item": "B10",
+   "what_it_does": "Temporal Activity workers report heartbeats, and the service retains the last heartbeat details for the next retry attempt. Heartbeats are progress/checkpoint signals, not proof that an arbitrary worker is making useful progress.",
+   "source_url": "https://docs.temporal.io/activities",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6",
+   "date_checked": "2026-09-15",
+   "quote": "The last recorded Heartbeat details are made available to the Activity function on the next attempt.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use heartbeats as one input, but derive UH liveness from pending tool-call structure.",
+   "recheck_trigger": "Temporal activity heartbeat documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Temporal",
+   "build_item": "X5",
+   "what_it_does": "Temporal creates durable Activity Executions, dispatches Activity Tasks through queues, and collects results to determine next workflow steps. Retry policies distinguish activity task attempts from workflow execution retries.",
+   "source_url": "https://docs.temporal.io/activities",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6",
+   "date_checked": "2026-09-15",
+   "quote": "This creates a durable Activity Execution in Temporal that orchestrates the full lifecycle of an Activity.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Durable execution and attempt-aware retry are strong foundations for UH lifecycle state.",
+   "recheck_trigger": "Temporal activity execution documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "LangGraph",
+   "build_item": "B2",
+   "what_it_does": "LangGraph interrupts suspend graph execution and persist exact state in a checkpointer until external input arrives. Re-invoking with Command resume continues the same thread.",
+   "source_url": "https://docs.langchain.com/oss/python/langgraph/interrupts",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; main metadata request rate-limited 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "When an interrupt is triggered, LangGraph saves the graph state using its persistence layer and waits indefinitely until you resume execution.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "The durable pause/resume primitive maps directly to supervisor intervention and human gates.",
+   "recheck_trigger": "LangGraph interrupts documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "LangGraph",
+   "build_item": "B9",
+   "what_it_does": "LangGraph documents approval workflows by interrupting before critical actions and routing on a true or false resume payload. The framework exposes the pending payload to a caller for human review.",
+   "source_url": "https://docs.langchain.com/oss/python/langgraph/interrupts",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; main metadata request rate-limited 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "Approval workflows: Pause before executing critical actions (API calls, database changes, financial transactions).",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use the interrupt pattern but add approver identity and immutable approval records.",
+   "recheck_trigger": "LangGraph interrupts documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "LangGraph",
+   "build_item": "X5",
+   "what_it_does": "LangGraph checkpointers persist thread-scoped graph state for conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance. A thread_id selects the state to resume.",
+   "source_url": "https://docs.langchain.com/oss/python/langgraph/persistence",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; main metadata request rate-limited 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "Checkpointers persist a thread's graph state as checkpoints.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt checkpointed state while keeping UH's run/task/attempt IDs separate from a thread ID.",
+   "recheck_trigger": "LangGraph persistence documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Mastra",
+   "build_item": "B2",
+   "what_it_does": "Mastra workflows compose typed steps and provide built-in suspension, resumption, streaming results, and time travel for replaying or retrying steps. Workflow state is shared and can persist across suspend/resume.",
+   "source_url": "https://mastra.ai/docs/workflows/overview",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ b61b64dfa4341d18d2e22ccb2435020024750dcd",
+   "date_checked": "2026-09-15",
+   "quote": "Running workflows to execute the entire sequence, with built-in support for suspension, resumption, and streaming results.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse typed workflow suspension but supply UH supervisor stop reasons and denial budgets.",
+   "recheck_trigger": "Mastra workflows documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Mastra",
+   "build_item": "B8",
+   "what_it_does": "Mastra scorers evaluate agent outputs and workflow-step outputs with model-graded, rule-based, and statistical methods. Sampling, trace evaluation, stored scores, and verdict gates support continuous quality checks.",
+   "source_url": "https://mastra.ai/docs/evals/overview",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ b61b64dfa4341d18d2e22ccb2435020024750dcd",
+   "date_checked": "2026-09-15",
+   "quote": "Scorers are automated tests that evaluate Agents outputs using model-graded, rule-based, and statistical methods.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use scorer and gate ideas, extending them to multiple independent reviewer families and wave packets.",
+   "recheck_trigger": "Mastra evals documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Mastra",
+   "build_item": "X5",
+   "what_it_does": "Mastra workflow steps have schemas, IDs, state, suspension/resumption, and Studio status/log views. Time travel can replay individual steps after a run completes.",
+   "source_url": "https://mastra.ai/docs/workflows/overview",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ b61b64dfa4341d18d2e22ccb2435020024750dcd",
+   "date_checked": "2026-09-15",
+   "quote": "After a run completes, replay individual steps to inspect or retry them.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt step-level replay but retain explicit immutable attempt records.",
+   "recheck_trigger": "Mastra workflows documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Inngest AgentKit",
+   "build_item": "B1",
+   "what_it_does": "AgentKit networks combine agents, shared state, and a router; each agent may use its own model and provider. Agent definitions include role-oriented name, description, system prompt, model, and tools.",
+   "source_url": "https://agentkit.inngest.com/concepts/networks",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "Networks are Systems of Agents. Use Networks to create powerful AI workflows by combining multiple Agents.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse composable team roles and model selection, adding explicit effort/time/memory budgets.",
+   "recheck_trigger": "AgentKit network documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Inngest AgentKit",
+   "build_item": "B2",
+   "what_it_does": "AgentKit networks run a router-agent loop and expose maxIter to cap iterations; the router may return undefined to stop. Shared state records outputs for later routing.",
+   "source_url": "https://agentkit.inngest.com/concepts/networks",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "A Network can specify an optional maxIter setting to limit the number of iterations.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Iteration caps help bound loops but do not encode UH's stop reason taxonomy or resume notes.",
+   "recheck_trigger": "AgentKit network documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Inngest AgentKit",
+   "build_item": "X5",
+   "what_it_does": "AgentKit state stores chronological interaction history and typed data shared by agents, tools, and routers. The network loop uses state to make subsequent routing decisions.",
+   "source_url": "https://agentkit.inngest.com/concepts/state",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "The history system maintains a chronological record of all Agent interactions in your Network.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use shared typed state for context, but add durable run/task/attempt lifecycle records.",
+   "recheck_trigger": "AgentKit state documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "OpenTelemetry GenAI semantic conventions",
+   "build_item": "X8",
+   "what_it_does": "The fetched OpenTelemetry page states that GenAI semantic conventions moved to a dedicated repository and is no longer maintained in the old location. This confirms the convention surface is evolving and version-sensitive.",
+   "source_url": "https://opentelemetry.io/docs/specs/semconv/gen-ai/",
+   "source_kind": "official_docs",
+   "version_or_commit": "moved page; destination repository current 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "GenAI semantic conventions have moved to the OpenTelemetry GenAI semantic conventions repository.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Track the moving standard but keep UH evidence schemas versioned and privacy-filtered independently.",
+   "recheck_trigger": "OpenTelemetry semantic-conventions-genai release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Langfuse",
+   "build_item": "B6",
+   "what_it_does": "Langfuse records usage and USD cost per LLM generation, either ingested from provider responses or inferred from model definitions. Ingested values take priority, and model definitions can include pricing tiers.",
+   "source_url": "https://langfuse.com/docs/observability/features/token-and-cost-tracking",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 8505c9e320bd4071de7a39b23245ea94fed932ab",
+   "date_checked": "2026-09-15",
+   "quote": "Langfuse tracks the usage and cost of every LLM call in your application.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt measured-versus-inferred precedence but add stop-reason dimensions and unknown never zero.",
+   "recheck_trigger": "Langfuse cost tracking documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Langfuse",
+   "build_item": "X6",
+   "what_it_does": "Langfuse distinguishes ingested usage/cost from inferred cost, supports custom model definitions and pricing tiers, and explicitly warns that missing reasoning-token usage prevents correct inference for some models.",
+   "source_url": "https://langfuse.com/docs/observability/features/token-and-cost-tracking",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 8505c9e320bd4071de7a39b23245ea94fed932ab",
+   "date_checked": "2026-09-15",
+   "quote": "When both are available, ingested values take priority over inferred ones.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "The explicit distinction between measured and inferred values matches UH cost truth requirements.",
+   "recheck_trigger": "Langfuse cost tracking documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Langfuse",
+   "build_item": "X8",
+   "what_it_does": "Langfuse accepts OTLP traces at a documented endpoint, maps OTel attributes to its data model, and cautions against putting sensitive information in propagated baggage. It supports HTTP JSON and protobuf, not gRPC.",
+   "source_url": "https://langfuse.com/integrations/native/opentelemetry",
+   "source_kind": "official_docs",
+   "version_or_commit": "main @ 8505c9e320bd4071de7a39b23245ea94fed932ab",
+   "date_checked": "2026-09-15",
+   "quote": "Do not include sensitive information (passwords, API keys, personal data, etc.) in baggage.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use OTLP ingestion and propagation guidance, but enforce UH prompt/secret exclusion at emission.",
+   "recheck_trigger": "Langfuse OpenTelemetry integration documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "AgentOps",
+   "build_item": "B6",
+   "what_it_does": "AgentOps automatically instruments supported agent frameworks and records each execution as a session. Its dashboard presents execution duration, event breakdowns, LLM calls, and traces for debugging.",
+   "source_url": "https://docs.agentops.ai/v2/introduction",
+   "source_kind": "official_docs",
+   "version_or_commit": "v2 docs current; repo main metadata checked 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "After setting up AgentOps, each execution of your program is recorded as a session.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use session-level observability as evidence, but require explicit provider cost truth and stop reasons.",
+   "recheck_trigger": "AgentOps v2 documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "AgentOps",
+   "build_item": "X5",
+   "what_it_does": "AgentOps models executions as sessions and records traces, actions, tool calls, errors, and LLM calls for later drilldown. It is primarily an observability record, not a durable supervisor state machine.",
+   "source_url": "https://docs.agentops.ai/v2/introduction",
+   "source_kind": "official_docs",
+   "version_or_commit": "v2 docs current; repo main metadata checked 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "Most powerful of all is the Session Waterfall. On the left, a time visualization of all your LLM calls, Action events, Tool calls, and Errors.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "Use trace concepts for observability but do not substitute sessions for authoritative lifecycle state.",
+   "recheck_trigger": "AgentOps v2 documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Braintrust",
+   "build_item": "B8",
+   "what_it_does": "Braintrust evaluations define data, a task, and scoring functions, then compare approaches and catch regressions. The platform supports traces, human feedback, datasets, and experiments in a workflow.",
+   "source_url": "https://www.braintrust.dev/docs/evaluation-quickstart",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "Each evaluation consists of three components: Data, Task, Scores.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use evaluator structure and regression comparisons, extending to independent reviewer model families.",
+   "recheck_trigger": "Braintrust evaluation documentation",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Braintrust",
+   "build_item": "X8",
+   "what_it_does": "Braintrust traces expose complete inputs and outputs, token counts, latency, cost, model configuration, and metadata in its logs. Its quickstart directs users to configure SDK tracing and verify traces appear.",
+   "source_url": "https://www.braintrust.dev/docs/tracing-quickstart",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "Click into any trace to see the complete input and output, token counts, latency, cost, model configuration, and metadata.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Its trace fields are useful, but UH must exclude prompts and secrets from evidence schemas by design.",
+   "recheck_trigger": "Braintrust tracing documentation",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Promptfoo",
+   "build_item": "B5",
+   "what_it_does": "Promptfoo evaluates prompts, models, and applications through declarative test cases, configurable metrics, matrix views, and structured results. It also supports automated red-team probes and risk reports.",
+   "source_url": "https://www.promptfoo.dev/docs/",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current (meta version current)",
+   "date_checked": "2026-09-15",
+   "quote": "promptfoo is an open-source CLI and library for evaluating and red-teaming LLM apps.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt declarative deliverable/evaluation checks but add UH-specific path, secret, and terminal-line scans.",
+   "recheck_trigger": "Promptfoo docs current release",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Promptfoo",
+   "build_item": "B8",
+   "what_it_does": "Promptfoo's GitHub Action compares before and after evaluations on pull requests and posts result links. Its red-team documentation describes systematic adversarial generation, automated scoring, and CI/CD integration.",
+   "source_url": "https://www.promptfoo.dev/docs/integrations/github-action/",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current (meta version current)",
+   "date_checked": "2026-09-15",
+   "quote": "On every pull request that modifies a prompt, the action will automatically run a full comparison.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse before/after quality evidence, adding multiple reviewer breadth and wave-level packets.",
+   "recheck_trigger": "Promptfoo GitHub Action release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "SWE-bench",
+   "build_item": "B5",
+   "what_it_does": "SWE-bench evaluates generated patches against real GitHub issues in reproducible Docker environments. Its v5 CLI records run IDs and evaluation logs/results for later reporting.",
+   "source_url": "https://raw.githubusercontent.com/SWE-bench/SWE-bench/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; v5 CLI visible in README",
+   "date_checked": "2026-09-15",
+   "quote": "SWE-bench is a benchmark for evaluating large language models on real world software issues collected from GitHub.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use containerized reproducibility and run IDs as a model for deliverable validation evidence.",
+   "recheck_trigger": "SWE-bench CLI release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "SWE-bench",
+   "build_item": "B8",
+   "what_it_does": "SWE-bench provides gold/reference and prediction evaluation modes, result caching by run and instance IDs, and parallel workers. It measures patch resolution rather than reviewer diversity.",
+   "source_url": "https://raw.githubusercontent.com/SWE-bench/SWE-bench/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; v5 CLI visible in README",
+   "date_checked": "2026-09-15",
+   "quote": "The run summary is written to logs/evaluation/<run_id>/results.json.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt reproducible result packets while adding independent reviewer model-family breadth.",
+   "recheck_trigger": "SWE-bench CLI release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "AgentEvals",
+   "build_item": "B8",
+   "what_it_does": "AgentEvals evaluates agent trajectories, including intermediate tool-call steps, with strict/unordered/subset/superset matching and LLM-as-judge evaluators. Results include a score and reasoning/comment.",
+   "source_url": "https://raw.githubusercontent.com/langchain-ai/agentevals/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; commit metadata rate-limited 2026-09-15",
+   "date_checked": "2026-09-15",
+   "quote": "This package contains a collection of evaluators and utilities for evaluating the performance of your agents, with a focus on agent trajectory.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Trajectory evaluation directly supports review breadth and tool-structure evidence.",
+   "recheck_trigger": "AgentEvals release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "B3",
+   "what_it_does": "MCP defines tools/list and tools/call, schemas, annotations, and an explicit warning that tool annotations are untrusted unless from trusted servers. It recommends a human able to deny invocations.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18/server/tools",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "For trust & safety and security, there SHOULD always be a human in the loop with the ability to deny tool invocations.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use MCP tool discovery and denial semantics, adding UH path-only matching and tamper detection.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "B4",
+   "what_it_does": "MCP roots let clients expose filesystem boundaries to servers and require clients to validate root URIs and permissions. The security guidance says servers should respect root boundaries and validate paths.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18/client/roots",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "Roots define the boundaries of where servers can operate within the filesystem.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Roots inform worker scope, but UH still needs per-worker credentials and sensitive-path deny-read.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "B9",
+   "what_it_does": "MCP sampling requires clients to control model access, selection, and permissions, with human review before request forwarding and response delivery. Clients should return a user-rejected error.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18/client/sampling",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "There SHOULD always be a human in the loop with the ability to deny sampling requests.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "MCP's explicit approval boundary supports rejecting auto-promotion under human gates.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "B12",
+   "what_it_does": "MCP roots require file:// URIs and can list multiple repositories, making filesystem boundaries transportable as URI values. The spec requires clients to validate root URIs against path traversal.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18/client/roots",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "This MUST be a file:// URI in the current specification.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use URI roots for portable artifacts, adding platform-specific normalization and canonicalization.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "X7",
+   "what_it_does": "The 2025-06-18 MCP specification requires explicit user consent for data access, operations, tools, and sampling. It also defines response errors such as user rejection for sampling.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "Users must explicitly consent to and understand all data access and operations.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Adopt explicit consent and denial as first-class approval records.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Model Context Protocol",
+   "build_item": "X8",
+   "what_it_does": "MCP security guidance requires user consent before exposing data and limits server visibility into prompts during sampling. It explicitly treats tool descriptions and annotations as potentially untrusted.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "The protocol intentionally limits server visibility into prompts.",
+   "fetch_status": "fetched",
+   "uh_stance": "adopt",
+   "stance_reason": "Use MCP's consent and prompt-visibility constraints to shape evidence schemas that exclude sensitive content.",
+   "recheck_trigger": "MCP specification revision",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "GSD-2 / GSD Pi",
+   "build_item": "B2",
+   "what_it_does": "The original gsd-build/gsd-2 repository is an archive redirect; current GSD Pi describes autonomous workflows that plan, implement, verify, and advance milestones and tasks. It stores summaries and validation evidence locally.",
+   "source_url": "https://raw.githubusercontent.com/gsd-build/gsd-2/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "archived redirect; moved to open-gsd/gsd-pi",
+   "date_checked": "2026-09-15",
+   "quote": "This repository is no longer the active home for GSD 2 development.",
+   "fetch_status": "fetched",
+   "uh_stance": "defer",
+   "stance_reason": "The requested repository is archived, so behavior must be reverified against the moved project before adoption.",
+   "recheck_trigger": "open-gsd/gsd-pi release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "GSD-2 / GSD Pi",
+   "build_item": "B5",
+   "what_it_does": "GSD Pi documents artifacts such as plans, summaries, validation notes, and reports, plus structured JSON quick-task results and meaningful exit codes. It maintains local .gsd state and reviewable markdown projections.",
+   "source_url": "https://raw.githubusercontent.com/open-gsd/gsd-pi/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "v1.20.0",
+   "date_checked": "2026-09-15",
+   "quote": "Produces artifacts such as plans, summaries, validation notes, and reports.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use artifact and validation-note concepts while adding UH terminal-line and secret-like scans.",
+   "recheck_trigger": "GSD Pi release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "GSD-2 / GSD Pi",
+   "build_item": "X5",
+   "what_it_does": "GSD Pi stores planning and runtime state under .gsd, tracks work in a local database with markdown projections, and supports worktree-aware automation. The README identifies v1.20.0 as the latest release.",
+   "source_url": "https://raw.githubusercontent.com/open-gsd/gsd-pi/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "v1.20.0",
+   "date_checked": "2026-09-15",
+   "quote": "Tracks project state in a local database with markdown projections for review.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt durable local projections, keeping UH's attempt identity and cross-platform path contract.",
+   "recheck_trigger": "GSD Pi release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-claudecode",
+   "build_item": "B2",
+   "what_it_does": "OMC's Team surface uses a staged team-plan, team-prd, team-exec, team-verify, and team-fix loop. It also documents persistent execution and a lead-session responsibility for final approval.",
+   "source_url": "https://raw.githubusercontent.com/Yeachan-Heo/oh-my-claudecode/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "v4.1.7 (version stated in README)",
+   "date_checked": "2026-09-15",
+   "quote": "Team runs as a staged pipeline: team-plan → team-prd → team-exec → team-verify → team-fix (loop).",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse staged execution and verification, adding explicit denial and stall budgets.",
+   "recheck_trigger": "oh-my-claudecode release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-claudecode",
+   "build_item": "B8",
+   "what_it_does": "OMC supports teams of Codex, Gemini, Antigravity, Grok, Cursor, and Claude workers and assigns role-oriented tasks such as critic, code-reviewer, security-reviewer, and test-engineer. Final approval remains a lead-session responsibility.",
+   "source_url": "https://raw.githubusercontent.com/Yeachan-Heo/oh-my-claudecode/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "v4.1.7 (version stated in README)",
+   "date_checked": "2026-09-15",
+   "quote": "Cursor also supports reviewer-style roles (critic, code-reviewer, security-reviewer, test-engineer).",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use distinct reviewer roles and model families as a breadth precedent, adding wave packet schemas.",
+   "recheck_trigger": "oh-my-claudecode release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-codex",
+   "build_item": "B1",
+   "what_it_does": "OMX provides a workflow layer around Codex with explicit commands for clarification, planning, durable goals, and team execution. It supports model/reasoning flags and worktree launch isolation.",
+   "source_url": "https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; README has no release version",
+   "date_checked": "2026-09-15",
+   "quote": "It keeps Codex as the execution engine and makes it easier to start a stronger Codex session by default and run one consistent workflow from clarification to completion.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Reuse durable objective/checkpoint workflow, adding a formal per-worker contract.",
+   "recheck_trigger": "oh-my-codex release",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "oh-my-codex",
+   "build_item": "B8",
+   "what_it_does": "OMX's canonical workflow includes plan, ultragoal, team, code-review, and ultraqa surfaces, with team used when a story needs coordinated parallel work. It recommends worktree isolation for concurrent sessions.",
+   "source_url": "https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; README has no release version",
+   "date_checked": "2026-09-15",
+   "quote": "Use $team inside that execution path only when a specific Ultragoal story needs coordinated parallel work.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Adopt selective team shapes and worktree isolation, adding independent reviewer-family requirements.",
+   "recheck_trigger": "oh-my-codex release",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "oh-my-codex",
+   "build_item": "X5",
+   "what_it_does": "OMX stores plans, logs, memory, and mode tracking under .omx and describes durable goals with checkpoints. Standard sessions use a single writable session pointer and fail closed on same-root conflicts.",
+   "source_url": "https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md",
+   "source_kind": "repo_source",
+   "version_or_commit": "main; README has no release version",
+   "date_checked": "2026-09-15",
+   "quote": "It keeps project guidance, plans, logs, and state in .omx/.",
+   "fetch_status": "fetched",
+   "uh_stance": "adapt",
+   "stance_reason": "Use durable local state and fail-closed ownership, separating UH run/task/attempt identities.",
+   "recheck_trigger": "oh-my-codex release",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Landscape gap (searched scope)",
+   "build_item": "B3",
+   "what_it_does": "Across Paperclip, Orca, Temporal, LangGraph, Mastra, AgentKit, OTel, Langfuse, AgentOps, Braintrust, Promptfoo, SWE-bench, AgentEvals, MCP, GSD Pi, OMC, and OMX, the fetched mechanisms expose tools, approval, or roots but no documented combination of path-only matching, substitute-action deny reasons, and tamper detection.",
+   "source_url": "https://modelcontextprotocol.io/specification/2025-06-18/server/tools",
+   "source_kind": "official_docs",
+   "version_or_commit": "2025-06-18 specification",
+   "date_checked": "2026-09-15",
+   "quote": "Clients MUST consider tool annotations to be untrusted unless they come from trusted servers.",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched the full named scope for path-only guards and tamper detection; found no system documenting all three together.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  },
+  {
+   "system": "Landscape gap (searched scope)",
+   "build_item": "B5",
+   "what_it_does": "The named systems provide evaluation, tracing, or artifact reports, but the fetched sources do not document one deliverable scan combining dangling paths, fingerprint phrases, secret-like strings, stray files, and a required DONE/BLOCKED final line.",
+   "source_url": "https://www.promptfoo.dev/docs/",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current (meta version current)",
+   "date_checked": "2026-09-15",
+   "quote": "Score outputs automatically by defining metrics.",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched named evaluation and orchestration systems; found no source documenting the complete filesystem-and-terminal deliverable scan.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "unverified"
+  },
+  {
+   "system": "Landscape gap (searched scope)",
+   "build_item": "B7",
+   "what_it_does": "The fetched orchestration systems expose iteration caps, state, queues, or concurrency settings, but none documents deriving a worker memory cap from declared parallelism as a first-class policy.",
+   "source_url": "https://agentkit.inngest.com/concepts/networks",
+   "source_kind": "official_docs",
+   "version_or_commit": "docs current; no release pin shown",
+   "date_checked": "2026-09-15",
+   "quote": "A Network can specify an optional maxIter setting to limit the number of iterations.",
+   "fetch_status": "fetched",
+   "uh_stance": "landscape_gap",
+   "stance_reason": "Searched all named orchestration systems for parallelism-derived memory accounting; found iteration/concurrency controls but no such derivation.",
+   "recheck_trigger": "monthly",
+   "coordinator_check": "verified"
+  }
+ ]
+}
diff --git a/docs/research/landscape-register.md b/docs/research/landscape-register.md
new file mode 100644
index 0000000..79b1611
--- /dev/null
+++ b/docs/research/landscape-register.md
@@ -0,0 +1,229 @@
+# Landscape register
+
+Primary-source comparison of execution and orchestration mechanisms relevant to
+UH. Each row records a public source URL, version or commit where available,
+retrieval date, quotation and adoption rationale. The machine-readable
+`coordinator_check` field records the source-quotation check, not product
+acceptance or a guarantee of current upstream behavior. Re-verify monthly or
+when the row's `recheck_trigger` applies.
+
+Rows: 118. Source check: 102 verified, 16 unverified.
+
+## B1: Per-worker contract in team missions
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | Custom subagents declare a model, tools, permission mode, maxTurns, effort, and other frontmatter; each runs in an independent context window.<br>"The `--agents` flag accepts JSON with a `prompt` field plus these [frontmatter] fields: ... `maxTurns` ... `effort` ..." | https://code.claude.com/docs/en/sub-agents (, 2026-09-15) | v2.1.261+ (version references visible; page otherwise current) | adopt: Declarative per-worker model, tools, effort and turn cap map well; budgets beyond turns are absent. | unverified | monthly |
+| OpenAI Codex CLI | Codex supports subagents for focused delegated work and configuration profiles can select model and effort; the fetched CLI page exposes delegation but not per-worker budgets.<br>"**Split up a larger investigation** — `subagents`: Ask Codex to delegate focused work to specialized agents, then bring their findings back into the main terminal session." | https://learn.chatgpt.com/docs/codex/cli (, 2026-09-15) | current docs (meta version not displayed) | adapt: Delegation exists, but a complete per-worker contract is not documented on this page. | verified | monthly |
+| oh-my-pi | The README describes first-class task fan-out into isolated worktrees, typed results, and per-subagent tool surfaces.<br>"Split a job across workers and get typed results back." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Typed worker outputs and isolation directly map to UH contracts; the README does not enumerate all budget fields. | verified | monthly |
+| SWE-agent | SWE-agent is governed by a single YAML configuration and accepts a user-selected language model; per-worker budget/seed contract is not exposed in README.<br>"Configurable & fully documented: Governed by a single `yaml` file" | https://github.com/SWE-agent/SWE-agent (, 2026-09-15) | main README as fetched; project warns mini-SWE-agent supersedes it | adapt: Central configuration is a useful seed for worker contracts, but required fields are not unified. | verified | monthly |
+| Paperclip | Paperclip models agent roles, reporting lines, responsibilities, goals, and task ancestry. Issues carry company, project, goal, and parent links so assigned agents receive the organizational why.<br>"Goal Alignment — Every task traces back to the organization mission. Agents know what to do and why." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adapt: Adopt goal ancestry and roles, but add explicit per-worker budgets and seed fields. | verified | monthly |
+| Inngest AgentKit | AgentKit networks combine agents, shared state, and a router; each agent may use its own model and provider. Agent definitions include role-oriented name, description, system prompt, model, and tools.<br>"Networks are Systems of Agents. Use Networks to create powerful AI workflows by combining multiple Agents." | https://agentkit.inngest.com/concepts/networks (official_docs, 2026-09-15) | docs current; no release pin shown | adapt: Reuse composable team roles and model selection, adding explicit effort/time/memory budgets. | verified | AgentKit network documentation |
+| oh-my-codex | OMX provides a workflow layer around Codex with explicit commands for clarification, planning, durable goals, and team execution. It supports model/reasoning flags and worktree launch isolation.<br>"It keeps Codex as the execution engine and makes it easier to start a stronger Codex session by default and run one consistent workflow from clarification to completion." | https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md (repo_source, 2026-09-15) | main; README has no release version | adapt: Reuse durable objective/checkpoint workflow, adding a formal per-worker contract. | unverified | oh-my-codex release |
+
+## B2: Stop-and-resume supervisor loop
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | Stop and StopFailure hooks run at turn boundaries, and TeammateIdle can send feedback that keeps a teammate working; the page documents no denial-budget or repeated-failure supervisor.<br>"`TeammateIdle`: runs when a teammate is about to go idle. Exit with code 2 to send feedback and keep the teammate working." | https://code.claude.com/docs/en/hooks (, 2026-09-15) | current docs (no release version displayed) | adapt: Lifecycle hooks provide a seam, but stop reasons and resume policy remain application logic. | unverified | monthly |
+| Cursor CLI | Cursor has interactive, plan, and ask modes plus non-interactive print mode; sessions can continue/resume, but no denial/failure supervisor loop is documented.<br>"Resume previous conversations: `agent ls`, `agent resume`, `agent --continue`, `agent --resume="chat-id-here"`" | https://cursor.com/docs/cli/overview.md (, 2026-09-15) | current docs (no release version displayed) | adapt: Resume exists, while stop-reason policy and bounded retry are absent. | unverified | monthly |
+| Hermes Agent | Hermes approval timeout denies by default, cron/unattended modes can deny instantly, and its hardline blocklist cannot be overridden.<br>"When no response is given within the timeout, the command is denied by default (fail-closed)." | https://hermes-agent.nousresearch.com/docs/user-guide/security (, 2026-09-15) | current (Docusaurus version=current) | adopt: Fail-closed approval and hard stops map directly; repeated-failure/stall supervision remains external. | verified | monthly |
+| OpenHands | Agent Canvas starts conversations and automations, including schedules/webhooks, and Agent Server runs multiple agents; stop/retry supervisor semantics are not stated.<br>"Create automations and workflows ... Run on a schedule or in response to webhook events" | https://github.com/All-Hands-AI/OpenHands (, 2026-09-15) | 1.18.0 image example; current repo | adapt: Scheduling/dispatch exists but bounded denial/stall supervisor logic is not documented. | unverified | monthly |
+| Paperclip | Paperclip supports agent pause, resume, and terminate controls, plus watchdogs and automatic recovery for orphaned runs. Its governance section describes recovery actions and review gates rather than a denial-budget policy.<br>"Governance with rollback. Approval gates are enforced, config changes are revisioned, and bad changes can be rolled back safely." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adapt: Reuse lifecycle controls but retain UH-specific repeated-failure, stall, and hard-stop semantics. | verified | monthly |
+| Temporal | Temporal durably records workflow event history so execution can resume after crashes or outages. Activities have retry policies and heartbeat details can checkpoint progress for a later attempt.<br>"If a failure occurs, the Workflow Execution can resume from the last recorded event, ensuring that progress isn't lost." | https://docs.temporal.io/temporal (official_docs, 2026-09-15) | main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6 | adapt: Adopt durable replay and activity recovery but implement UH-specific denial and stall policies above it. | verified | Temporal durable execution documentation |
+| LangGraph | LangGraph interrupts suspend graph execution and persist exact state in a checkpointer until external input arrives. Re-invoking with Command resume continues the same thread.<br>"When an interrupt is triggered, LangGraph saves the graph state using its persistence layer and waits indefinitely until you resume execution." | https://docs.langchain.com/oss/python/langgraph/interrupts (official_docs, 2026-09-15) | docs current; main metadata request rate-limited 2026-09-15 | adopt: The durable pause/resume primitive maps directly to supervisor intervention and human gates. | verified | LangGraph interrupts documentation |
+| Mastra | Mastra workflows compose typed steps and provide built-in suspension, resumption, streaming results, and time travel for replaying or retrying steps. Workflow state is shared and can persist across suspend/resume.<br>"Running workflows to execute the entire sequence, with built-in support for suspension, resumption, and streaming results." | https://mastra.ai/docs/workflows/overview (official_docs, 2026-09-15) | main @ b61b64dfa4341d18d2e22ccb2435020024750dcd | adapt: Reuse typed workflow suspension but supply UH supervisor stop reasons and denial budgets. | verified | Mastra workflows documentation |
+| Inngest AgentKit | AgentKit networks run a router-agent loop and expose maxIter to cap iterations; the router may return undefined to stop. Shared state records outputs for later routing.<br>"A Network can specify an optional maxIter setting to limit the number of iterations." | https://agentkit.inngest.com/concepts/networks (official_docs, 2026-09-15) | docs current; no release pin shown | adapt: Iteration caps help bound loops but do not encode UH's stop reason taxonomy or resume notes. | verified | AgentKit network documentation |
+| GSD-2 / GSD Pi | The original gsd-build/gsd-2 repository is an archive redirect; current GSD Pi describes autonomous workflows that plan, implement, verify, and advance milestones and tasks. It stores summaries and validation evidence locally.<br>"This repository is no longer the active home for GSD 2 development." | https://raw.githubusercontent.com/gsd-build/gsd-2/main/README.md (repo_source, 2026-09-15) | archived redirect; moved to open-gsd/gsd-pi | defer: The requested repository is archived, so behavior must be reverified against the moved project before adoption. | verified | open-gsd/gsd-pi release |
+| oh-my-claudecode | OMC's Team surface uses a staged team-plan, team-prd, team-exec, team-verify, and team-fix loop. It also documents persistent execution and a lead-session responsibility for final approval.<br>"Team runs as a staged pipeline: team-plan → team-prd → team-exec → team-verify → team-fix (loop)." | https://raw.githubusercontent.com/Yeachan-Heo/oh-my-claudecode/main/README.md (repo_source, 2026-09-15) | v4.1.7 (version stated in README) | adapt: Reuse staged execution and verification, adding explicit denial and stall budgets. | verified | oh-my-claudecode release |
+
+## B3: Per-tool-call guard and tamper detection
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | PreToolUse hooks match tool names and can return permissionDecision deny plus a human-readable reason before execution.<br>"The `PreToolUse` event fires. The hook can deny the call, but staying silent doesn't approve it." | https://code.claude.com/docs/en/hooks (, 2026-09-15) | current docs (no release version displayed) | adopt: A per-call deny hook exists; UH still needs path-only normalization and tamper evidence. | verified | monthly |
+| OpenAI Codex CLI | Codex config exposes approval_policy and sandbox_mode; sandbox policy distinguishes read-only, workspace-write, and danger-full-access.<br>"sandbox_mode | read-only | workspace-write | danger-full-access | Sandbox policy for filesystem and network access during command execution." | https://learn.chatgpt.com/docs/config-file/config-reference (, 2026-09-15) | current docs (meta version not displayed) | adapt: Strong execution policy exists, but path-only substitute deny reasons/tamper detection are not established. | verified | monthly |
+| Cursor CLI | The CLI exposes a sandbox flag with enabled/disabled modes and a menu to control network access, but no documented per-tool path matcher.<br>"Configure command execution settings with `/sandbox` or the `--sandbox <mode>` flag (`enabled` or `disabled`)." | https://cursor.com/docs/cli/overview.md (, 2026-09-15) | current docs (no release version displayed) | adapt: Coarse sandbox toggle only; UH needs path-only matching and deny explanations. | verified | monthly |
+| oh-my-pi | Stream rules use regex matches to abort a stream, inject a rule, and retry from the same point.<br>"A regex match aborts the stream mid-token, injects the rule as a system reminder, and retries from the same point." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Tamper/course-correction seam exists; per-tool path guard must be separately verified. | verified | monthly |
+| Hermes Agent | Hermes applies case-insensitive fnmatch deny globs before YOLO/approval and returns BLOCKED without execution; it warns this is not a complete OS sandbox.<br>"A denied command returns a BLOCKED error to the agent telling it not to retry or rephrase. Nothing runs." | https://hermes-agent.nousresearch.com/docs/user-guide/security (, 2026-09-15) | current (Docusaurus version=current) | adopt: Substitute-action deny reason and layered guard are strong; path-only filesystem matching is not the mechanism. | verified | monthly |
+| goose | The public goose README establishes a native agent that can install, execute, edit, and test; no public fetched mechanism in scope documented path-level tool guards.<br>"install, execute, edit, and test with any LLM" | https://github.com/block/goose (, 2026-09-15) | main README as fetched; moving branch | defer: Execution exists but the requested deny-reason/path matcher contract was not evidenced. | verified | monthly |
+| Model Context Protocol | MCP defines tools/list and tools/call, schemas, annotations, and an explicit warning that tool annotations are untrusted unless from trusted servers. It recommends a human able to deny invocations.<br>"For trust & safety and security, there SHOULD always be a human in the loop with the ability to deny tool invocations." | https://modelcontextprotocol.io/specification/2025-06-18/server/tools (official_docs, 2026-09-15) | 2025-06-18 specification | adapt: Use MCP tool discovery and denial semantics, adding UH path-only matching and tamper detection. | verified | MCP specification revision |
+| Landscape gap (searched scope) | Across Paperclip, Orca, Temporal, LangGraph, Mastra, AgentKit, OTel, Langfuse, AgentOps, Braintrust, Promptfoo, SWE-bench, AgentEvals, MCP, GSD Pi, OMC, and OMX, the fetched mechanisms expose tools, approval, or roots but no documented combination of path-only matching, substitute-action deny reasons, and tamper detection.<br>"Clients MUST consider tool annotations to be untrusted unless they come from trusted servers." | https://modelcontextprotocol.io/specification/2025-06-18/server/tools (official_docs, 2026-09-15) | 2025-06-18 specification | landscape_gap: Searched the full named scope for path-only guards and tamper detection; found no system documenting all three together. | verified | monthly |
+
+## B4: Credential scoping, deny-read, preflight
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | Sandbox credential rules protect declared files and environment variables, while denyRead/allowRead path rules control filesystem visibility.<br>"The `sandbox.credentials` setting declares credential files and environment variables to protect from sandboxed commands." | https://code.claude.com/docs/en/sandboxing (, 2026-09-15) | v2.1.187+ for credentials; current page | adapt: Credential and path policy exist, but per-worker identity/scoping and controller preflight are not one contract. | verified | monthly |
+| OpenAI Codex CLI | workspace-write can add writable roots, and project config is loaded only for trusted projects; this scopes filesystem access but is not a credential-per-worker scheme.<br>"Codex loads project-scoped config files only when you trust the project." | https://learn.chatgpt.com/docs/config-file/config-reference (, 2026-09-15) | current docs (meta version not displayed) | adapt: Trust and writable-root controls are useful; credential deny-read preflight remains missing. | verified | monthly |
+| Hermes Agent | Hermes lists MCP credential filtering and hardened backend path allowlists among its security layers.<br>"MCP credential filtering — environment variable isolation for MCP subprocesses" | https://hermes-agent.nousresearch.com/docs/user-guide/security (, 2026-09-15) | current (Docusaurus version=current) | adapt: Credential filtering is present but per-worker scoping/preflight evidence is not shown. | verified | monthly |
+| alibaba/OpenSandbox | OpenSandbox has a credential vault for secure outbound injection without exposing real secrets to workloads.<br>"Credential Vault: Secure credential injection for sandbox outbound requests without exposing real secrets to workloads." | https://github.com/opensandbox-group/OpenSandbox (, 2026-09-15) | main README as fetched; moving branch | adopt: Secret injection boundary is explicit; per-worker identity/preflight remains to integrate. | verified | monthly |
+| Paperclip | Paperclip has instance and company secrets, encrypted local storage, and scoped secret injection for explicitly needing runs. It describes roles, permissions, and company boundaries for agents.<br>"Sensitive values stay out of prompts unless a scoped run explicitly needs them." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adapt: Use scoped secret injection as a baseline, adding UH fail-closed path preflight and deny-read checks. | verified | monthly |
+| Model Context Protocol | MCP roots let clients expose filesystem boundaries to servers and require clients to validate root URIs and permissions. The security guidance says servers should respect root boundaries and validate paths.<br>"Roots define the boundaries of where servers can operate within the filesystem." | https://modelcontextprotocol.io/specification/2025-06-18/client/roots (official_docs, 2026-09-15) | 2025-06-18 specification | adapt: Roots inform worker scope, but UH still needs per-worker credentials and sensitive-path deny-read. | verified | MCP specification revision |
+
+## B5: Deliverable scans and completion marker
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Pi | Pi documents a session/state-management core and its repository highlights tests, tooling, and reproducible release source archives, but no deliverable scan contract.<br>"AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI" | https://github.com/badlogic/pi-mono (, 2026-09-15) | main README as fetched; moving branch | defer: The toolkit is extensible but the named deliverable invariants are not a built-in mechanism. | verified | monthly |
+| SWE-agent | SWE-agent targets automated fixes in real repositories and benchmark batch mode; the fetched README does not specify artifact invariant scans.<br>"SWE-agent takes a GitHub issue and tries to automatically fix it" | https://github.com/SWE-agent/SWE-agent (, 2026-09-15) | main README as fetched; project warns mini-SWE-agent supersedes it | defer: Deliverable production exists, but UH scan invariants are not evidenced. | verified | monthly |
+| Aider | Aider automatically lints/tests after edits and can fix detected problems; this is validation but not the requested path/secret/last-line deliverable scan.<br>"Automatically lint and test your code every time aider makes changes." | https://github.com/Aider-AI/aider (, 2026-09-15) | main README as fetched; moving branch | adapt: Post-edit validation maps partially to deliverable scans. | verified | monthly |
+| Turso AgentFS | AgentFS records every file operation, tool call, and state change in SQLite, enabling queryable history and audit-oriented scans.<br>"Every file operation, tool call, and state change is recorded in a SQLite database file." | https://github.com/tursodatabase/agentfs (, 2026-09-15) | main README as fetched; moving branch | adopt: Audit trail supports deliverable verification, though named scan rules are UH-owned. | verified | monthly |
+| Promptfoo | Promptfoo evaluates prompts, models, and applications through declarative test cases, configurable metrics, matrix views, and structured results. It also supports automated red-team probes and risk reports.<br>"promptfoo is an open-source CLI and library for evaluating and red-teaming LLM apps." | https://www.promptfoo.dev/docs/ (official_docs, 2026-09-15) | docs current (meta version current) | adapt: Adopt declarative deliverable/evaluation checks but add UH-specific path, secret, and terminal-line scans. | unverified | Promptfoo docs current release |
+| SWE-bench | SWE-bench evaluates generated patches against real GitHub issues in reproducible Docker environments. Its v5 CLI records run IDs and evaluation logs/results for later reporting.<br>"SWE-bench is a benchmark for evaluating large language models on real world software issues collected from GitHub." | https://raw.githubusercontent.com/SWE-bench/SWE-bench/main/README.md (repo_source, 2026-09-15) | main; v5 CLI visible in README | adapt: Use containerized reproducibility and run IDs as a model for deliverable validation evidence. | verified | SWE-bench CLI release |
+| GSD-2 / GSD Pi | GSD Pi documents artifacts such as plans, summaries, validation notes, and reports, plus structured JSON quick-task results and meaningful exit codes. It maintains local .gsd state and reviewable markdown projections.<br>"Produces artifacts such as plans, summaries, validation notes, and reports." | https://raw.githubusercontent.com/open-gsd/gsd-pi/main/README.md (repo_source, 2026-09-15) | v1.20.0 | adapt: Use artifact and validation-note concepts while adding UH terminal-line and secret-like scans. | verified | GSD Pi release |
+| Landscape gap (searched scope) | The named systems provide evaluation, tracing, or artifact reports, but the fetched sources do not document one deliverable scan combining dangling paths, fingerprint phrases, secret-like strings, stray files, and a required DONE/BLOCKED final line.<br>"Score outputs automatically by defining metrics." | https://www.promptfoo.dev/docs/ (official_docs, 2026-09-15) | docs current (meta version current) | landscape_gap: Searched named evaluation and orchestration systems; found no source documenting the complete filesystem-and-terminal deliverable scan. | unverified | monthly |
+
+## B6: Cost attribution by stop reason
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Landscape search | No scoped system source fetched documents cost attribution by stop reason as a required first-class field; nearest systems expose generic usage/billing or sandbox lifecycle only.<br>"Agent Hub ... roster shows current activity and usage for every subagent." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | landscape_gap: Searched: cost attribution stop reason, usage by denial/stall/OOM, per-worker billing; no scoped source showed the complete join. | unverified | monthly |
+| Paperclip | Paperclip tracks token and cost data by company, agent, project, goal, issue, provider, and model. Budget policies have warning thresholds and hard stops, and overspend pauses agents and cancels queued work.<br>"Token and cost tracking by company, agent, project, goal, issue, provider, and model." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adapt: Reuse attribution dimensions but add mandatory stop-reason attribution and unknown-cost states. | verified | monthly |
+| Langfuse | Langfuse records usage and USD cost per LLM generation, either ingested from provider responses or inferred from model definitions. Ingested values take priority, and model definitions can include pricing tiers.<br>"Langfuse tracks the usage and cost of every LLM call in your application." | https://langfuse.com/docs/observability/features/token-and-cost-tracking (official_docs, 2026-09-15) | main @ 8505c9e320bd4071de7a39b23245ea94fed932ab | adapt: Adopt measured-versus-inferred precedence but add stop-reason dimensions and unknown never zero. | verified | Langfuse cost tracking documentation |
+| AgentOps | AgentOps automatically instruments supported agent frameworks and records each execution as a session. Its dashboard presents execution duration, event breakdowns, LLM calls, and traces for debugging.<br>"After setting up AgentOps, each execution of your program is recorded as a session." | https://docs.agentops.ai/v2/introduction (official_docs, 2026-09-15) | v2 docs current; repo main metadata checked 2026-09-15 | adapt: Use session-level observability as evidence, but require explicit provider cost truth and stop reasons. | verified | AgentOps v2 documentation |
+
+## B7: Memory cap from declared parallelism
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Landscape search | No scoped system source fetched derives a memory cap from declared parallelism; resource limits are generally explicit per sandbox or platform.<br>"resourceLimits ... memory ..." | https://raw.githubusercontent.com/opensandbox-group/OpenSandbox/main/docs/guides/secure-container.md (, 2026-09-15) | main (raw source, moving) | landscape_gap: Searched: memory cap derived parallelism, worker concurrency memory formula, agent budget allocation; found explicit limits, not derivation. | unverified | monthly |
+| Landscape gap (searched scope) | The fetched orchestration systems expose iteration caps, state, queues, or concurrency settings, but none documents deriving a worker memory cap from declared parallelism as a first-class policy.<br>"A Network can specify an optional maxIter setting to limit the number of iterations." | https://agentkit.inngest.com/concepts/networks (official_docs, 2026-09-15) | docs current; no release pin shown | landscape_gap: Searched all named orchestration systems for parallelism-derived memory accounting; found iteration/concurrency controls but no such derivation. | verified | monthly |
+
+## B8: Review breadth
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | Agent teams use independent context windows, direct teammate messaging, a shared task list, and hooks for TeammateIdle/TaskCompleted quality gates.<br>"Agent teams let you coordinate multiple Claude Code instances working together." | https://code.claude.com/docs/en/agent-teams (, 2026-09-15) | v2.1.178 (explicitly stated) | adopt: Multiple workers and wave-like task coordination are native; model-family diversity is configurable but not enforced. | verified | monthly |
+| OpenAI Codex CLI | The config reference supports review_model and the CLI supports dedicated review against changes without modifying the tree.<br>"Run a dedicated review against uncommitted changes, a commit, or a base branch. Codex reports prioritized findings without modifying your working tree." | https://learn.chatgpt.com/docs/codex/cli (, 2026-09-15) | current docs (meta version not displayed) | adopt: Review is first-class; multiple model-family reviewer waves are not guaranteed. | verified | monthly |
+| Cursor CLI | Print mode can review changes with an output format, and Cloud Agent handoff continues work asynchronously.<br>"Use print mode for non-interactive scenarios like scripts, CI pipelines, or automation." | https://cursor.com/docs/cli/overview.md (, 2026-09-15) | current docs (no release version displayed) | defer: Review/remote continuation are present, but reviewer breadth and independent model families are not described. | verified | monthly |
+| oh-my-pi | A reviewer model runs in an advisor role, reads every main-agent turn, and injects notes inline.<br>"Pair a reviewer model to the 'advisor' role and it reads every turn the main agent takes, injecting notes inline." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Independent reviewer is native; wave packets and multiple model families need adaptation. | verified | monthly |
+| OpenHands | Agent Canvas can connect to OpenHands, Claude Code, Codex, Gemini, or any ACP agent backend, enabling heterogeneous review workers.<br>"Use with OpenHands, Claude Code, Codex, Gemini, or any agent with Agent-Client Protocol (ACP)." | https://github.com/All-Hands-AI/OpenHands (, 2026-09-15) | 1.18.0 image example; current repo | adapt: Backend diversity is native; review-wave breadth and packet contracts are not. | verified | monthly |
+| Mastra | Mastra scorers evaluate agent outputs and workflow-step outputs with model-graded, rule-based, and statistical methods. Sampling, trace evaluation, stored scores, and verdict gates support continuous quality checks.<br>"Scorers are automated tests that evaluate Agents outputs using model-graded, rule-based, and statistical methods." | https://mastra.ai/docs/evals/overview (official_docs, 2026-09-15) | main @ b61b64dfa4341d18d2e22ccb2435020024750dcd | adapt: Use scorer and gate ideas, extending them to multiple independent reviewer families and wave packets. | verified | Mastra evals documentation |
+| Braintrust | Braintrust evaluations define data, a task, and scoring functions, then compare approaches and catch regressions. The platform supports traces, human feedback, datasets, and experiments in a workflow.<br>"Each evaluation consists of three components: Data, Task, Scores." | https://www.braintrust.dev/docs/evaluation-quickstart (official_docs, 2026-09-15) | docs current; no release pin shown | adapt: Use evaluator structure and regression comparisons, extending to independent reviewer model families. | unverified | Braintrust evaluation documentation |
+| Promptfoo | Promptfoo's GitHub Action compares before and after evaluations on pull requests and posts result links. Its red-team documentation describes systematic adversarial generation, automated scoring, and CI/CD integration.<br>"On every pull request that modifies a prompt, the action will automatically run a full comparison." | https://www.promptfoo.dev/docs/integrations/github-action/ (official_docs, 2026-09-15) | docs current (meta version current) | adapt: Reuse before/after quality evidence, adding multiple reviewer breadth and wave-level packets. | verified | Promptfoo GitHub Action release |
+| SWE-bench | SWE-bench provides gold/reference and prediction evaluation modes, result caching by run and instance IDs, and parallel workers. It measures patch resolution rather than reviewer diversity.<br>"The run summary is written to logs/evaluation/<run_id>/results.json." | https://raw.githubusercontent.com/SWE-bench/SWE-bench/main/README.md (repo_source, 2026-09-15) | main; v5 CLI visible in README | adapt: Adopt reproducible result packets while adding independent reviewer model-family breadth. | verified | SWE-bench CLI release |
+| AgentEvals | AgentEvals evaluates agent trajectories, including intermediate tool-call steps, with strict/unordered/subset/superset matching and LLM-as-judge evaluators. Results include a score and reasoning/comment.<br>"This package contains a collection of evaluators and utilities for evaluating the performance of your agents, with a focus on agent trajectory." | https://raw.githubusercontent.com/langchain-ai/agentevals/main/README.md (repo_source, 2026-09-15) | main; commit metadata rate-limited 2026-09-15 | adopt: Trajectory evaluation directly supports review breadth and tool-structure evidence. | verified | AgentEvals release |
+| oh-my-claudecode | OMC supports teams of Codex, Gemini, Antigravity, Grok, Cursor, and Claude workers and assigns role-oriented tasks such as critic, code-reviewer, security-reviewer, and test-engineer. Final approval remains a lead-session responsibility.<br>"Cursor also supports reviewer-style roles (critic, code-reviewer, security-reviewer, test-engineer)." | https://raw.githubusercontent.com/Yeachan-Heo/oh-my-claudecode/main/README.md (repo_source, 2026-09-15) | v4.1.7 (version stated in README) | adapt: Use distinct reviewer roles and model families as a breadth precedent, adding wave packet schemas. | verified | oh-my-claudecode release |
+| oh-my-codex | OMX's canonical workflow includes plan, ultragoal, team, code-review, and ultraqa surfaces, with team used when a story needs coordinated parallel work. It recommends worktree isolation for concurrent sessions.<br>"Use $team inside that execution path only when a specific Ultragoal story needs coordinated parallel work." | https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md (repo_source, 2026-09-15) | main; README has no release version | adapt: Adopt selective team shapes and worktree isolation, adding independent reviewer-family requirements. | verified | oh-my-codex release |
+
+## B9: Promotion authority
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | In plan mode a teammate sends a plan approval request to the lead, but Claude Code approves it as soon as it arrives without lead review.<br>"When a teammate finishes planning, it sends a plan approval request to the lead. Claude Code approves the plan in the lead's session as soon as the request arrives, without the lead reviewing it." | https://code.claude.com/docs/en/agent-teams (, 2026-09-15) | current docs (version references visible) | reject: This explicitly fails a human promotion gate. | verified | monthly |
+| OpenAI Codex CLI | approval_policy controls pauses before command execution and approvals_reviewer can be user or auto_review.<br>"approvals_reviewer | user | auto_review | Who reviews eligible approval prompts under `on-request` or granular approval policies." | https://learn.chatgpt.com/docs/config-file/config-reference (, 2026-09-15) | current docs (meta version not displayed) | adapt: Human reviewer identity is representable, but promotion authority and immutable rejection semantics are not specified. | verified | monthly |
+| Paperclip | Paperclip provides board approval workflows, review/approval stages, decision tracking, and audit logging. It presents approval gates as enforced governance rather than merely advisory review.<br>"Governance & Approvals — Board approval workflows, execution policies with review/approval stages, decision tracking, budget hard-stops." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adopt: The enforced human-gate model directly matches promotion authority requirements. | verified | monthly |
+| LangGraph | LangGraph documents approval workflows by interrupting before critical actions and routing on a true or false resume payload. The framework exposes the pending payload to a caller for human review.<br>"Approval workflows: Pause before executing critical actions (API calls, database changes, financial transactions)." | https://docs.langchain.com/oss/python/langgraph/interrupts (official_docs, 2026-09-15) | docs current; main metadata request rate-limited 2026-09-15 | adapt: Use the interrupt pattern but add approver identity and immutable approval records. | verified | LangGraph interrupts documentation |
+| Model Context Protocol | MCP sampling requires clients to control model access, selection, and permissions, with human review before request forwarding and response delivery. Clients should return a user-rejected error.<br>"There SHOULD always be a human in the loop with the ability to deny sampling requests." | https://modelcontextprotocol.io/specification/2025-06-18/client/sampling (official_docs, 2026-09-15) | 2025-06-18 specification | adopt: MCP's explicit approval boundary supports rejecting auto-promotion under human gates. | verified | MCP specification revision |
+
+## B10: Liveness from tool-call structure
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Landscape search | No scoped system source fetched defines liveness from pending tool-call structure rather than event freshness; most lifecycle docs use idle/timeout/events.<br>"A Sandbox is considered active if any of the following are true: ... an active command ... stdin ... open TCP connection" | https://modal.com/docs/guide/sandboxes.md (, 2026-09-15) | current docs (no release version displayed) | landscape_gap: Searched: pending tool call liveness, event freshness heartbeat, stalled agent detector; found activity/timeout signals, not pending-structure liveness. | unverified | monthly |
+| Temporal | Temporal Activity workers report heartbeats, and the service retains the last heartbeat details for the next retry attempt. Heartbeats are progress/checkpoint signals, not proof that an arbitrary worker is making useful progress.<br>"The last recorded Heartbeat details are made available to the Activity function on the next attempt." | https://docs.temporal.io/activities (official_docs, 2026-09-15) | main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6 | adapt: Use heartbeats as one input, but derive UH liveness from pending tool-call structure. | verified | Temporal activity heartbeat documentation |
+
+## B11: Steering channel
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | In-process and split-pane teams let the lead select a teammate and type a direct message; Ctrl+T exposes the task list.<br>"Each teammate is a full, independent Claude Code session. You can message any teammate directly to give additional instructions, ask follow-up questions, or redirect their approach." | https://code.claude.com/docs/en/agent-teams (, 2026-09-15) | current docs (version references visible) | adopt: Direct steering is documented and interactive. | verified | monthly |
+| Cursor CLI | Interactive mode lets a user approve commands and Cloud Agent handoff moves the conversation to a running cloud agent.<br>"Start a conversational session with the agent to describe your goals, review proposed changes, and approve commands." | https://cursor.com/docs/cli/overview.md (, 2026-09-15) | current docs (no release version displayed) | adapt: User steering/approval is interactive, but a documented running-worker control channel is thin. | verified | monthly |
+| oh-my-pi | Agent Hub shows activity/usage, live transcripts, and controls to steer, revive, or kill workers.<br>"Open one to read its live transcript, type a steering message, revive a parked worker, or kill a stuck one." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Direct steering and lifecycle control are explicit. | verified | monthly |
+| Hermes Agent | Hermes supports Ctrl+C/new-message interrupt-and-redirect in CLI and stop/new messages on gateway platforms.<br>"Interrupt current work | `Ctrl+C` or send a new message" | https://github.com/NousResearch/hermes-agent (, 2026-09-15) | main README as fetched; moving branch | adopt: A steering path exists across CLI and messaging. | verified | monthly |
+
+## B12: Cross-platform artifact paths
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| oh-my-pi | The project publishes native install paths for macOS, Linux, and Windows and says completions derive from live CLI metadata.<br>"macOS · Linux · Windows · bun ≥ 1.3.14" | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Cross-platform installation/path handling is explicit; artifact path semantics still need UH normalization. | verified | monthly |
+| OpenHands | The Docker backend guide gives distinct macOS/Linux and Windows PowerShell mount commands, mapping host project roots to `/projects`.<br>"The backend ... can access any project under the mounted `/projects` path." | https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker (, 2026-09-15) | current docs (no release version displayed) | adopt: Cross-platform artifact/workspace mapping is documented. | unverified | monthly |
+| Aider | Aider provides Windows CI and documents terminal usage; the fetched README focuses on repo editing and Git rather than portable artifact-path normalization.<br>"aider is AI pair programming in your terminal" | https://github.com/Aider-AI/aider (, 2026-09-15) | main README as fetched; moving branch | defer: Cross-platform use is implied by project workflows, but the UH artifact contract is not documented. | verified | monthly |
+| Landscape search | No single scoped system source defines a portable artifact-path contract spanning Windows, POSIX, worktrees, and sandbox mounts; products document platform-specific mounts instead.<br>"PowerShell uses backticks (`) for line continuation instead of backslashes." | https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker (, 2026-09-15) | current docs (no release version displayed) | landscape_gap: Searched: cross-platform artifact path contract, Windows POSIX path normalization, portable worktree artifact; found platform-specific instructions, not one contract. | verified | monthly |
+| Model Context Protocol | MCP roots require file:// URIs and can list multiple repositories, making filesystem boundaries transportable as URI values. The spec requires clients to validate root URIs against path traversal.<br>"This MUST be a file:// URI in the current specification." | https://modelcontextprotocol.io/specification/2025-06-18/client/roots (official_docs, 2026-09-15) | 2025-06-18 specification | adapt: Use URI roots for portable artifacts, adding platform-specific normalization and canonicalization. | verified | MCP specification revision |
+
+## X1: Owned process tree and kill on controller loss
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| E2B | E2B sandboxes expose timeout, pause/resume, kill, and automatic pause on expiry; the lifecycle ends on timeout or OOM.<br>"When their timeout expires, they can automatically pause to save resources — preserving their full state so you can resume at any time." | https://docs.e2b.dev/sandbox.md (, 2026-09-15) | current docs (no release version displayed) | adopt: Lifecycle/resource termination is native; controller-loss process ownership is not guaranteed by this source. | verified | monthly |
+| alibaba/OpenSandbox | OpenSandbox command API accepts per-sandbox resource limits and lifecycle timeout, with distributed scheduling through Docker/Kubernetes runtimes.<br>"Built-in lifecycle management ... local runs and large-scale distributed scheduling." | https://github.com/opensandbox-group/OpenSandbox (, 2026-09-15) | main README as fetched; moving branch | adapt: Resource/lifecycle controls exist; owned process tree and controller-loss kill need platform configuration. | unverified | monthly |
+| Daytona | Daytona sandboxes allocate vCPU, RAM, and disk and expose lifecycle APIs; the public repo states development moved private and releases stopped after v0.190.0.<br>"This repository is no longer maintained." | https://github.com/daytonaio/daytona (, 2026-09-15) | v0.190.0 (license link; repository archived/no further releases) | defer: Resource controls exist, but re-verification must move to the private successor or current docs. | verified | monthly |
+| Modal Sandboxes | Modal sandboxes have created/scheduled/started/finished lifecycle states, max lifetime, idle timeout, OOM termination, and explicit terminate.<br>"Finished — The Sandbox has stopped running ... timeout or idle timeout was reached, or an out-of-memory condition occurred." | https://modal.com/docs/guide/sandboxes.md (, 2026-09-15) | current docs (no release version displayed) | adopt: Lifecycle and resource stop reasons are explicit; controller-loss ownership is not. | unverified | monthly |
+| kubernetes-sigs/agent-sandbox | Agent Sandbox manages stateful singleton workloads with lifecycle operations including scheduled deletion, pausing, and resuming.<br>"Lifecycle Management: The Sandbox controller manages the lifecycle of the pod, including creation, scheduled deletion, pausing and resuming." | https://github.com/kubernetes-sigs/agent-sandbox (, 2026-09-15) | v1.0.2 installation example; current repository | adopt: Controller lifecycle is native; per-worker memory/kill-on-controller-loss policy is Kubernetes-dependent. | verified | monthly |
+| Landscape search | No scoped system source fetched combines owned controller process-tree tracking, a hard memory cap, and guaranteed kill on controller loss across local and remote backends.<br>"agent-sandbox follows the Kubernetes controller pattern" | https://github.com/kubernetes-sigs/agent-sandbox (, 2026-09-15) | v1.0.2 | landscape_gap: Searched: controller loss kill process tree, supervisor-owned process group memory cap, cross-backend kill guarantee; found platform-specific lifecycle controllers only. | verified | monthly |
+
+## X2: Measured usage and route attestation
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Landscape search | No scoped system source fetched attests measured route/model/credential usage as an immutable per-worker record; several expose usage or telemetry separately.<br>"the roster shows current activity and usage for every subagent" | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | landscape_gap: Searched: route attestation, measured usage attestation, immutable model/provider per worker; no complete evidence chain found. | verified | monthly |
+
+## X3: Filesystem versus execution isolation
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | Bash sandboxing enforces filesystem/network restrictions at the OS level; failIfUnavailable can convert unsupported/missing sandbox into a hard failure.<br>"By default, if the sandbox cannot start because dependencies are missing or the platform is unsupported, Claude Code shows a warning and runs commands without sandboxing." | https://code.claude.com/docs/en/sandboxing (, 2026-09-15) | current docs (no release version displayed) | adapt: Isolation tiers and fail-closed mode exist, but native Windows is unsupported and the default is fail-open. | verified | monthly |
+| OpenAI Codex CLI | Codex provides read-only/workspace-write/danger-full-access sandbox modes plus native Windows sandbox selection.<br>"windows.sandbox | unelevated | elevated | Windows-only native sandbox mode when running Codex natively on Windows." | https://learn.chatgpt.com/docs/config-file/config-reference (, 2026-09-15) | current docs (meta version not displayed) | adopt: Explicit isolation tiers cover the cross-platform execution boundary. | verified | monthly |
+| Pi | Pi explicitly says filesystem, process, network, and credential permissions are inherited from the launching process and recommends external sandboxing/containerization.<br>"Pi does not include a built-in permission system for restricting filesystem, process, network, or credential access." | https://github.com/badlogic/pi-mono (, 2026-09-15) | main README as fetched; moving branch | reject: The documented default is host permissions, not an isolation tier. | verified | monthly |
+| Hermes Agent | Hermes supports local, Docker, SSH, Singularity, Modal, Daytona, and Vercel Sandbox backends; container isolation is a documented layer.<br>"Runs anywhere, not just your laptop — Seven terminal backends — local, Docker, SSH, Singularity, Modal, Daytona, and Vercel Sandbox." | https://github.com/NousResearch/hermes-agent (, 2026-09-15) | main README as fetched; moving branch | adopt: Multiple isolation backends exist, with backend-specific semantics. | verified | monthly |
+| goose | goose runs as a native desktop/CLI/API agent on macOS, Linux, and Windows; the fetched README does not claim a sandbox boundary.<br>"A native desktop app for macOS, Linux, and Windows. A full CLI for terminal workflows. An API to embed it anywhere." | https://github.com/block/goose (, 2026-09-15) | main README as fetched; moving branch | defer: Platform portability is clear, but isolation must be supplied/verified elsewhere. | verified | monthly |
+| OpenHands | Agent Canvas can run an agent backend in Docker with only mounted projects and settings exposed; the guide warns privileged mode weakens isolation.<br>"The agent server can execute arbitrary shell commands inside the container." | https://docs.openhands.dev/openhands/usage/agent-canvas/backend-setup/docker (, 2026-09-15) | current docs (no release version displayed) | adapt: Container boundary exists, with an explicit privileged-mode risk. | verified | monthly |
+| E2B | E2B runs AI-generated code in secure isolated cloud sandboxes controlled through SDKs.<br>"run AI-generated code in secure isolated sandboxes in the cloud" | https://github.com/e2b-dev/E2B (, 2026-09-15) | main README as fetched; moving branch | adopt: Cloud isolation is the core product. | verified | monthly |
+| alibaba/OpenSandbox | OpenSandbox supports Docker/Kubernetes runtimes and secure gVisor, Kata, and Firecracker runtimes; server startup validates availability and refuses missing configured runtimes.<br>"The server validates the configured runtime at startup and will refuse to start if the runtime is unavailable." | https://raw.githubusercontent.com/opensandbox-group/OpenSandbox/main/docs/guides/secure-container.md (, 2026-09-15) | main (raw source, moving) | adopt: Fail-closed runtime selection and multiple isolation tiers map well. | verified | monthly |
+| Daytona | Daytona provides isolated composable computers with a dedicated kernel, filesystem, network stack, and allocated resources.<br>"full composable computers with complete isolation, a dedicated kernel, filesystem, network stack" | https://github.com/daytonaio/daytona (, 2026-09-15) | v0.190.0 | adopt: Strong sandbox primitive is documented. | verified | monthly |
+| Modal Sandboxes | Modal describes Sandboxes as secure containers for executing untrusted user/agent code and supports runtime creation.<br>"secure containers for executing untrusted user or agent code on Modal" | https://modal.com/docs/guide/sandboxes.md (, 2026-09-15) | current docs (no release version displayed) | adopt: Isolation is the core primitive. | verified | monthly |
+| kubernetes-sigs/agent-sandbox | Agent Sandbox is an orchestrator delegating low-level isolation to RuntimeClass-backed gVisor/Kata runtimes.<br>"It delegates low-level container isolation to secure "Sandbox Runtimes" (like gVisor or Kata Containers)" | https://github.com/kubernetes-sigs/agent-sandbox (, 2026-09-15) | v1.0.2 installation example; current repository | adopt: Clear separation of orchestration and isolation tier. | verified | monthly |
+
+## X4: Session persistence and resume
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Claude Code | SessionStart fires on session begin or resume, and worktree/task state persists for resumed sessions.<br>"`SessionStart` | When a session begins or resumes" | https://code.claude.com/docs/en/hooks (, 2026-09-15) | current docs (no release version displayed) | adopt: Resume lifecycle is explicit; UH-specific checkpoint/contract restoration still must be layered. | verified | monthly |
+| OpenAI Codex CLI | The CLI documents codex resume for reopening recent or older local chats and supports repeatable codex exec workflows.<br>"`codex resume`: Reopen a recent chat from the current repository, or search across local chats when you need to return to older work." | https://learn.chatgpt.com/docs/codex/cli (, 2026-09-15) | current docs (meta version not displayed) | adopt: Session resume is native; supervisor note restoration is outside the documented primitive. | verified | monthly |
+| Cursor CLI | agent resume/continue reopen prior conversations by latest or chat ID.<br>"Pick up your Cloud Agent tasks on web or mobile at `cursor.com/agents`." | https://cursor.com/docs/cli/overview.md (, 2026-09-15) | current docs (no release version displayed) | adapt: Persistence/resume is available, though durable artifact contracts are not specified. | verified | monthly |
+| oh-my-pi | The README documents on-disk sessions and `--resume` completion against sessions, plus isolated worktrees for tasks.<br>"`--resume` against your on-disk sessions." | https://github.com/can1357/oh-my-pi (, 2026-09-15) | main README as fetched; moving branch | adopt: Session persistence is native. | verified | monthly |
+| Pi | Pi is an agent loop with state management and session benchmark/storage packages; the public README also directs users to persistent session tooling.<br>"AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI" | https://github.com/badlogic/pi-mono (, 2026-09-15) | main README as fetched; moving branch | adapt: State/session primitives exist, but the exact resume contract requires source-level follow-up. | verified | monthly |
+| Hermes Agent | Hermes provides cross-session isolation and cron persistence paths, while `/new`, `/reset`, `/retry`, and `/undo` operate session state.<br>"Cross-session isolation — sessions cannot access each other's data or state" | https://hermes-agent.nousresearch.com/docs/user-guide/security (, 2026-09-15) | current (Docusaurus version=current) | adopt: Session boundary is explicit; a supervisor resume note is not standardized. | unverified | monthly |
+| E2B | E2B pauses a sandbox and preserves full state indefinitely for later resume, with explicit timeout control.<br>"pausing resets the runtime window, and your sandbox's full state is preserved indefinitely." | https://docs.e2b.dev/sandbox.md (, 2026-09-15) | current docs (no release version displayed) | adopt: Persistence/resume is directly documented. | verified | monthly |
+| Turso AgentFS | AgentFS stores files, state, and history in one SQLite file and supports snapshots/restoration for reproducibility.<br>"Snapshot an agent's state at any point with cp agent.db snapshot.db. Restore it later to reproduce exact execution states" | https://github.com/tursodatabase/agentfs (, 2026-09-15) | main README as fetched; moving branch | adopt: Persistence/checkpoint primitive is explicit. | verified | monthly |
+| Daytona | Daytona snapshots preserve state for persistent agent operations across sessions.<br>"Our stateful environment snapshots enable persistent agent operations across sessions" | https://github.com/daytonaio/daytona (, 2026-09-15) | v0.190.0 | adopt: Persistence is native, though source continuity is now a recheck risk. | verified | monthly |
+| Modal Sandboxes | Modal recommends Filesystem Snapshots to preserve state beyond 24 hours and restore into a subsequent Sandbox.<br>"If you need a Sandbox to run for more than 24 hours, we recommend using Filesystem Snapshots to preserve its state" | https://modal.com/docs/guide/sandboxes.md (, 2026-09-15) | current docs (no release version displayed) | adopt: Checkpoint/resume exists, with explicit lifetime boundary. | verified | monthly |
+| kubernetes-sigs/agent-sandbox | Sandbox CRDs provide stable identity and persistent storage that survive restarts, with pause/resume lifecycle.<br>"Persistent Storage: Sandboxes can be configured with persistent storage that survives restarts." | https://github.com/kubernetes-sigs/agent-sandbox (, 2026-09-15) | v1.0.2 | adopt: Stateful resume primitive is explicit. | verified | monthly |
+
+## X5: Run, task and attempt identity
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Paperclip | Paperclip uses DB-backed wakeup queues and tracked runs that produce structured logs, cost events, session state, and audit trails. Its issues and conversations persist across reboots.<br>"DB-backed wakeup queue with coalescing, budget checks, workspace resolution, secret injection, skill loading, and adapter invocation." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adapt: Adopt durable queue and run state, retaining UH's explicit run/task/attempt identity contract. | verified | monthly |
+| Temporal | Temporal creates durable Activity Executions, dispatches Activity Tasks through queues, and collects results to determine next workflow steps. Retry policies distinguish activity task attempts from workflow execution retries.<br>"This creates a durable Activity Execution in Temporal that orchestrates the full lifecycle of an Activity." | https://docs.temporal.io/activities (official_docs, 2026-09-15) | main @ 097ce3a12f118d209bb7b8e1ebb9e5d96e961eb6 | adopt: Durable execution and attempt-aware retry are strong foundations for UH lifecycle state. | verified | Temporal activity execution documentation |
+| LangGraph | LangGraph checkpointers persist thread-scoped graph state for conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance. A thread_id selects the state to resume.<br>"Checkpointers persist a thread's graph state as checkpoints." | https://docs.langchain.com/oss/python/langgraph/persistence (official_docs, 2026-09-15) | docs current; main metadata request rate-limited 2026-09-15 | adapt: Adopt checkpointed state while keeping UH's run/task/attempt IDs separate from a thread ID. | verified | LangGraph persistence documentation |
+| Mastra | Mastra workflow steps have schemas, IDs, state, suspension/resumption, and Studio status/log views. Time travel can replay individual steps after a run completes.<br>"After a run completes, replay individual steps to inspect or retry them." | https://mastra.ai/docs/workflows/overview (official_docs, 2026-09-15) | main @ b61b64dfa4341d18d2e22ccb2435020024750dcd | adapt: Adopt step-level replay but retain explicit immutable attempt records. | verified | Mastra workflows documentation |
+| Inngest AgentKit | AgentKit state stores chronological interaction history and typed data shared by agents, tools, and routers. The network loop uses state to make subsequent routing decisions.<br>"The history system maintains a chronological record of all Agent interactions in your Network." | https://agentkit.inngest.com/concepts/state (official_docs, 2026-09-15) | docs current; no release pin shown | adapt: Use shared typed state for context, but add durable run/task/attempt lifecycle records. | verified | AgentKit state documentation |
+| AgentOps | AgentOps models executions as sessions and records traces, actions, tool calls, errors, and LLM calls for later drilldown. It is primarily an observability record, not a durable supervisor state machine.<br>"Most powerful of all is the Session Waterfall. On the left, a time visualization of all your LLM calls, Action events, Tool calls, and Errors." | https://docs.agentops.ai/v2/introduction (official_docs, 2026-09-15) | v2 docs current; repo main metadata checked 2026-09-15 | defer: Use trace concepts for observability but do not substitute sessions for authoritative lifecycle state. | verified | AgentOps v2 documentation |
+| GSD-2 / GSD Pi | GSD Pi stores planning and runtime state under .gsd, tracks work in a local database with markdown projections, and supports worktree-aware automation. The README identifies v1.20.0 as the latest release.<br>"Tracks project state in a local database with markdown projections for review." | https://raw.githubusercontent.com/open-gsd/gsd-pi/main/README.md (repo_source, 2026-09-15) | v1.20.0 | adapt: Adopt durable local projections, keeping UH's attempt identity and cross-platform path contract. | verified | GSD Pi release |
+| oh-my-codex | OMX stores plans, logs, memory, and mode tracking under .omx and describes durable goals with checkpoints. Standard sessions use a single writable session pointer and fail closed on same-root conflicts.<br>"It keeps project guidance, plans, logs, and state in .omx/." | https://raw.githubusercontent.com/Yeachan-Heo/oh-my-codex/main/README.md (repo_source, 2026-09-15) | main; README has no release version | adapt: Use durable local state and fail-closed ownership, separating UH run/task/attempt identities. | unverified | oh-my-codex release |
+
+## X6: Cost truth
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Langfuse | Langfuse distinguishes ingested usage/cost from inferred cost, supports custom model definitions and pricing tiers, and explicitly warns that missing reasoning-token usage prevents correct inference for some models.<br>"When both are available, ingested values take priority over inferred ones." | https://langfuse.com/docs/observability/features/token-and-cost-tracking (official_docs, 2026-09-15) | main @ 8505c9e320bd4071de7a39b23245ea94fed932ab | adopt: The explicit distinction between measured and inferred values matches UH cost truth requirements. | verified | Langfuse cost tracking documentation |
+
+## X7: Human gates and approval records
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Model Context Protocol | The 2025-06-18 MCP specification requires explicit user consent for data access, operations, tools, and sampling. It also defines response errors such as user rejection for sampling.<br>"Users must explicitly consent to and understand all data access and operations." | https://modelcontextprotocol.io/specification/2025-06-18 (official_docs, 2026-09-15) | 2025-06-18 specification | adopt: Adopt explicit consent and denial as first-class approval records. | verified | MCP specification revision |
+
+## X8: Evidence and trace schemas without prompts or secrets
+
+| System | Mechanism | Source | Version | Stance | Check | Recheck |
+|---|---|---|---|---|---|---|
+| Paperclip | Paperclip documents opt-in OpenTelemetry server traces and an anonymous telemetry contract that excludes prompts, issue content, file paths, and secrets. Mutating actions and lifecycle events are recorded as durable activity.<br>"No personal information, issue content, prompts, file paths, or secrets are ever collected." | https://raw.githubusercontent.com/paperclipai/paperclip/master/README.md (repo_source, 2026-09-15) | master @ 6cfe4acff7284fc330e3e24ef0f4b0ac878628c4 | adopt: The explicit exclusion list is a strong evidence-schema privacy precedent. | verified | monthly |
+| OpenTelemetry GenAI semantic conventions | The fetched OpenTelemetry page states that GenAI semantic conventions moved to a dedicated repository and is no longer maintained in the old location. This confirms the convention surface is evolving and version-sensitive.<br>"GenAI semantic conventions have moved to the OpenTelemetry GenAI semantic conventions repository." | https://opentelemetry.io/docs/specs/semconv/gen-ai/ (official_docs, 2026-09-15) | moved page; destination repository current 2026-09-15 | defer: Track the moving standard but keep UH evidence schemas versioned and privacy-filtered independently. | verified | OpenTelemetry semantic-conventions-genai release |
+| Langfuse | Langfuse accepts OTLP traces at a documented endpoint, maps OTel attributes to its data model, and cautions against putting sensitive information in propagated baggage. It supports HTTP JSON and protobuf, not gRPC.<br>"Do not include sensitive information (passwords, API keys, personal data, etc.) in baggage." | https://langfuse.com/integrations/native/opentelemetry (official_docs, 2026-09-15) | main @ 8505c9e320bd4071de7a39b23245ea94fed932ab | adapt: Use OTLP ingestion and propagation guidance, but enforce UH prompt/secret exclusion at emission. | verified | Langfuse OpenTelemetry integration documentation |
+| Braintrust | Braintrust traces expose complete inputs and outputs, token counts, latency, cost, model configuration, and metadata in its logs. Its quickstart directs users to configure SDK tracing and verify traces appear.<br>"Click into any trace to see the complete input and output, token counts, latency, cost, model configuration, and metadata." | https://www.braintrust.dev/docs/tracing-quickstart (official_docs, 2026-09-15) | docs current; no release pin shown | adapt: Its trace fields are useful, but UH must exclude prompts and secrets from evidence schemas by design. | verified | Braintrust tracing documentation |
+| Model Context Protocol | MCP security guidance requires user consent before exposing data and limits server visibility into prompts during sampling. It explicitly treats tool descriptions and annotations as potentially untrusted.<br>"The protocol intentionally limits server visibility into prompts." | https://modelcontextprotocol.io/specification/2025-06-18 (official_docs, 2026-09-15) | 2025-06-18 specification | adopt: Use MCP's consent and prompt-visibility constraints to shape evidence schemas that exclude sensitive content. | verified | MCP specification revision |
+
diff --git a/docs/research/protocol-boundaries-notes.md b/docs/research/protocol-boundaries-notes.md
new file mode 100644
index 0000000..835bf3c
--- /dev/null
+++ b/docs/research/protocol-boundaries-notes.md
@@ -0,0 +1,20 @@
+# A2A, MCP and ACP: which boundary is which (read 2026-09-21)
+
+| | MCP | ACP | A2A |
+|---|---|---|---|
+| Relationship | agent to tools/data | client (editor, orchestrator UI) to one coding agent | agent to opaque peer agent |
+| Current | spec 2026-07-28 | v1 stable, v2 Draft 2026-07-20 | 1.0.0, Linux Foundation, proto is normative |
+| Transport | stdio, Streamable HTTP | stdio (HTTP draft) | JSON-RPC over HTTP/SSE, gRPC, HTTP+JSON |
+| Unit of work | tool call; long work via `io.modelcontextprotocol/tasks` extension (tasks/get polling, tasks/update) | session + prompt; v2 decouples prompt from turn | Task with states SUBMITTED, WORKING, INPUT_REQUIRED, AUTH_REQUIRED, COMPLETED, FAILED, CANCELED, REJECTED; Artifacts as outputs |
+| Discovery | server/discover | ACP Registry | AgentCard at /.well-known/agent-card.json with skills and security schemes |
+| State | stateless since 2026-07-28: no initialize handshake, no session id; server-minted handles passed as arguments | stateful sessions, resume, list, close | stateful tasks, contextId groups turns, push notifications |
+
+MCP 2026-07-28 also: multi round-trip requests replace server-initiated requests (result carries `resultType: input_required`), OTel trace context keys in `_meta` (traceparent, tracestate, baggage), deterministic tools/list order "to improve LLM prompt cache hit rates", ttlMs/cacheScope on list results.
+
+A2A's own statement: MCP is how an agent uses a capability; A2A is how agents "partner or delegate work" as peers without exposing internal state. A server agent fulfilling an A2A task may use MCP underneath.
+
+## What this means for a UH team coordinator talking to foreign agents
+- A UH mission already is an A2A Task in shape: id, status lifecycle, artifacts, input-required (blocked/awaiting-human), cancel. UH's `blocked` and `awaiting-human` map to INPUT_REQUIRED / AUTH_REQUIRED; `policy` and fleet refusals map to REJECTED.
+- Inbound (foreign orchestrator delegates to UH): A2A server face is the right one when the caller is an autonomous agent over a network; ACP agent face when the caller is a local client driving a session over stdio; MCP tools + tasks extension when the caller is a model host that only speaks MCP (Claude Code, most IDE agents). All three can be thin projections of the same run directory. Build order should follow who actually calls UH: Orca, Claude Code, Hermes, Herdr. Verify each one's supported protocol before choosing.
+- Outbound (UH worker is a foreign agent): a foreign A2A agent is opaque. UH cannot guard its tools, attest its model route, or account its cost beyond what it reports. Under the current invariants (zero uncontained escapes, fleet policy, deterministic evidence) a foreign A2A worker can only be admitted as an untrusted producer whose artifacts enter through the same output verification and review gates as any diff, never as a guarded worker.
+- Trace context: MCP now standardizes traceparent in `_meta`. If UH emits OTel spans it should propagate the same keys so a host's trace and UH's trace join.
diff --git a/docs/research/runlayer-control-patterns-2026-09-17.md b/docs/research/runlayer-control-patterns-2026-09-17.md
new file mode 100644
index 0000000..7827f10
--- /dev/null
+++ b/docs/research/runlayer-control-patterns-2026-09-17.md
@@ -0,0 +1,28 @@
+# Runlayer control patterns and UH applicability
+
+Evidence inspected: 2026-09-17. This is research, not an implementation or security certification claim. Runlayer descriptions below are first-party vendor statements, not independently reproduced behavior.
+
+## Sources
+
+- [Runlayer overview](https://www.runlayer.com/): governed MCP gateway, identity and access policy, runtime scanning, discovery and spend visibility.
+- [Runlayer and AARM](https://www.runlayer.com/blog/runlayer-and-aarm-partner-to-secure-enterprise-agents): interception before action, policy evaluation and enforcement, and tamper-evident audit. The article claims Extended Conformance; this investigation did not independently validate that claim or inspect the conformance tests.
+- [MCP Tunnels](https://www.runlayer.com/blog/anthropic-mcp-tunnels): outbound-initiated connectivity, mTLS, OAuth, group-scoped gateway access, runtime scanning, and exportable events. These describe their integration, not features already present in UH.
+
+## Applicable lessons
+
+| Pattern | Application to UH | Authority and limitations |
+|---|---|---|
+| Enforce before effects | Evaluate an action before dispatch; preserve deterministic denials regardless of semantic scores. | JEV is advisory evidence, not a permission grant or a security boundary. |
+| Separate recommendation from authorization | Recommend an eligible runtime/model or escalation based on bounded task evidence. | Policy defines allowed choices; human gates and scope restrictions remain authoritative. |
+| Explain why execution was allowed | Preserve decision input references, selected route, provider outcome, policy outcome, and actual run references. | Do not log credentials, raw sensitive documents, or claim signed/tamper-proof evidence without implementing and verifying it. |
+| One enforcement point | Keep UH as sole controller for a live attempt. | External integrations must not start a second controller for the same attempt. |
+| Governed tool inventory | Consider capability discovery and eligibility before semantic ranking. | A listed adapter is not necessarily installed, healthy, affordable, or authorized. |
+| Export operational facts | Retain observed usage, latency, outcomes and uncertainty. | No inferred savings or universal speed claims from one request. Existing telemetry policy still applies. |
+
+## Defer rather than copy
+
+Enterprise SSO, OAuth brokering, MCP reverse tunnels, a hosted gateway, security-model training, and broad endpoint discovery are not prerequisites for the current progressive-decision implementation. Adding them now would expand product scope and authority. Runlayer's public material does not expose enough internals to reproduce its detection performance, training, thresholds, false-positive rates, or actual unit costs.
+
+## Evidence selection as another JEV application
+
+For ranking sets of posts, websites, or articles, a possible pipeline is: authorized acquisition and deduplication in code; stable document/fragment IDs; bounded relevance, novelty, evidence and applicability judgments; selection in code with diversity controls; optional generative synthesis over selected text only. Preserve source quotations and links. Popularity is not evidence quality. External text is untrusted and cannot authorize implementation or change scope. No collector or large-corpus benchmark was implemented in this investigation.
diff --git a/docs/runbooks/acceptance.md b/docs/runbooks/acceptance.md
new file mode 100644
index 0000000..f3e0257
--- /dev/null
+++ b/docs/runbooks/acceptance.md
@@ -0,0 +1,39 @@
+# Acceptance evidence
+
+Register one small mission per mechanism in `acceptance/registry.yaml`. Build the CLI, configure an installed adapter, and select a permitted model before running against a fresh workspace. The command below invokes live runtimes and can incur provider charges:
+
+```text
+node dist/cli.js acceptance run --all --workspace <fresh-workspace> --model <permitted-model>
+```
+
+## Command Code fleet campaign
+
+The oh-my-pi runtime has no usable model on this machine, so the live campaign runs on the command-code fleet. Every capability has a `command-code` registry entry: the 17 `<id>-cmdc` ports (model `qwen/qwen3.8-flash`, carried by the registry, so no `--model` override is needed) plus the three `G1-cmdc-*` entries. `uh acceptance run` takes one capability at a time, so the exact campaign command iterates the command-code entries against one fresh workspace. `cmdc` must resolve on `PATH` first (the hook-broken probe resolves the `acceptance/support/cmdc.cmd` shim; see the registry notes). The command below invokes live runtimes and can incur provider charges:
+
+```sh
+for capability in C1-cmdc S1-cmdc S2-cmdc S3-cmdc G2-cmdc R5-cmdc policy-cmdc R10-stall-cmdc R10-controller-loss-cmdc R7-turn-cap-cmdc R7-repeated-failure-cmdc C1-missing-output-cmdc S3-budget-exhausted-cmdc S3-unknown-cost-cmdc R5-deep-path-cmdc X1-paths-cmdc R11-deadline-grace-cmdc G1-cmdc-guard G1-cmdc-shell-policy G1-cmdc-hook-broken; do
+  node dist/cli.js acceptance run "$capability" --workspace <fresh-workspace>
+done
+```
+
+`R10-stall-cmdc` is fixture-only and prints `FIXTURE` without running; `G2-cmdc` hits its denial budget through real guard denials, and `S3-unknown-cost-cmdc` strips runtime usage through `acceptance/support/costless-wrapper-cmdc.mjs` so admission is refused on unknown cost.
+
+Inspect results with `uh acceptance status --json`, then generate a local report with `uh acceptance report`. Canonical runtime artifacts are stored in the selected workspace; generated evidence is written under ignored `acceptance/evidence/<capability>/`. Keep execution records in private local or CI storage, not in the public source repository.
+
+Evidence records include actual `fact_sources`; registry `expected.fact_sources` selects each field from the first or last sorted attempt and is not itself compared. A capability without fresh passing real-runtime evidence is **unproven**, whatever the test suite or fixture smoke says. A failed real run is retained as failed evidence; expectations must not be changed merely to make a run pass.
+
+Run the campaign at one harness commit before evaluating freshness. The report drift check compares the registry and available local evidence with the generated report. A clean checkout ships no local execution records, so its report does not claim live proof. Fixture-only capabilities render `fixture_only` without real evidence; attempted fixture missions retain their actual outcome. Review any generated report before publication: local run identifiers, timestamps, paths, transcripts and account information are not public documentation.
+
+## Campaign runtime snapshot and CLI outcome
+
+`uh acceptance run` materializes a snapshot of the harness under `<workspace>/.acceptance-runtime` (dist and src, plus a junction to the nearest `node_modules` found by walking up from the harness root — a git worktree or team leader tree without its own install resolves the parent checkout). When no `node_modules` exists anywhere above the root, the run refuses loudly with exit 2 and names the searched path instead of spawning a snapshot CLI that dies on `ERR_MODULE_NOT_FOUND`. A dangling junction is never reused: the preload stats the junction target and recreates the junction when the target is gone. On Windows, each workspace repo is initialized with `core.longpaths true` so deep-path runs can `git add` long fixture paths.
+
+Every evidence record stores the mission CLI outcome as `cli: { exit_code, stderr_tail (last 2 KB), stdout_tail (last 2 KB) }`; wrapper-unavailable records store `exit_code: null` with empty tails. A run that produced no observed status keeps that fact visible instead of fabricating `status: failed`, and its FAIL line ends with the first line of the CLI stderr, so the cause (for example a missing dependency in the snapshot) is readable without hand-running the snapshot CLI.
+
+`acceptance/support/costless-wrapper-cmdc.mjs` resolves a `.cmd` shim (Node 22 refuses to spawn `.cmd`/`.bat` without a shell) to the node entry point it wraps and spawns that directly, falling back to the Windows shell only for shims it cannot parse; the `S3-unknown-cost-cmdc` route therefore attests on Windows.
+
+The committed-report drift check renders the report against an empty evidence root (`renderAcceptanceReport(root, now, { evidenceRoot })`) and compares it with `docs/acceptance/README.md`, so local campaign records under `acceptance/evidence/` never fail the check; `uh acceptance report` keeps rendering local evidence for humans.
+
+## Support shims and failed evidence
+
+Registry entries may declare `support_shim` (for example `cmdc.cmd` on the hook-broken probe): the runner prepends the copied `acceptance/support` directory to the child process PATH for that run only, records `shim_on_path: true` in the evidence, and every other capability keeps the untouched parent PATH. When a capability fails, read the failed evidence and its artifact root first — run directories, the tool-guard log, `fact_sources` — before changing anything: expectations describe the mechanism, so a failure usually means the runner or the budget mis-modeled reality (for example a turn budget exhausted by exploratory tool calls), not that the expectation should move.
diff --git a/docs/runbooks/acp-setup.md b/docs/runbooks/acp-setup.md
new file mode 100644
index 0000000..39fa815
--- /dev/null
+++ b/docs/runbooks/acp-setup.md
@@ -0,0 +1,88 @@
+# ACP (Agent-Client Protocol) Setup Runbook
+
+Ultimate Harness provides native support for **ACP v1 (Agent-Client Protocol)**, allowing UH to orchestrate external ACP-compliant agent processes (e.g. OpenHands, Zed agents, or custom ACP servers) through standard JSON-RPC 2.0 over standard I/O.
+
+---
+
+## 1. Prerequisites
+
+1. An executable agent that implements ACP v1 (reads JSON-RPC on `stdin`, writes on `stdout`).
+2. The agent command accessible in `PATH` or configured via `server_command`.
+
+---
+
+## 2. Adapter Configuration
+
+The adapter manifest is located at `.harness/adapters/acp.yaml`.
+
+```yaml
+schema_version: uh.adapter.v0
+id: acp
+name: Agent-Client Protocol (ACP)
+description: Native ACP v1 runner for headless agent orchestration
+runtime: acp
+capabilities:
+  - cli-execution
+  - json-output
+  - diff-output
+status: active
+config:
+  server_command: acp-agent
+  server_args: []
+  protocol_version: 1
+  timeout_ms: 600000
+```
+
+### Runtime Configuration Options
+
+* `server_command` (string, default: `"acp-agent"`): The binary or script invoked by UH.
+* `server_args` (string[], default: `[]`): Command line arguments passed to the ACP server.
+* `protocol_version` (integer, default: `1`): ACP protocol version (v1).
+* `timeout_ms` (integer, default: `600000`): Per-request timeout in milliseconds.
+
+---
+
+## 3. Mission Usage
+
+### Single Mission
+In your mission packet:
+```yaml
+schema_version: uh.mission.v0
+id: sample-acp-mission
+title: "Run task via ACP"
+workflow_profile: bugfix-contained
+runtime_config_overrides:
+  server_command: my-acp-binary
+  timeout_ms: 300000
+```
+
+Execute with:
+```bash
+uh mission run .harness/missions/sample-acp-mission/mission.yaml --runtime acp
+```
+
+### Team Mission
+ACP is also a first-class team worker adapter:
+```yaml
+schema_version: uh.mission.v0
+id: sample-team-acp
+shape: team
+team:
+  leader:
+    adapter: command-code
+    role: leader
+  workers:
+    - adapter: acp
+      role: worker-acp
+      objective: "Implement headless task via ACP"
+```
+
+---
+
+## 4. Verification and Governance
+
+When UH executes an ACP mission:
+1. It validates the ACP handshake (`initialize`).
+2. Spawns the agent within the isolated sandbox boundary.
+3. Services agent-to-client permission requests (`session/request_permission`) according to harness policy.
+4. Records canonical run facts (`runtime-result.yaml`, `diff.patch`, `stdout`, `stderr`, and `runs/index.json`).
diff --git a/docs/runbooks/container-sandbox.md b/docs/runbooks/container-sandbox.md
index bae4c73..f711812 100644
--- a/docs/runbooks/container-sandbox.md
+++ b/docs/runbooks/container-sandbox.md
@@ -88,7 +88,7 @@ curl http://127.0.0.1:8080/health
 |---|---|---|
 | Generate OpenSandbox Docker config | PASS | `Wrote example config (docker) to /tmp/uh-opensandbox-smoke.dRGQbI/sandbox.toml` |
 | Start OpenSandbox server | FAIL | Server exited before health check. |
-| Docker daemon availability | FAIL | `failed to connect to the docker API at unix:///Users/eduardojaviergarcialopez/.docker/run/docker.sock` |
+| Docker daemon availability | FAIL | `failed to connect to the docker API at unix:///Users/example/.docker/run/docker.sock` |
 | OpenSandbox health endpoint | FAIL | `/health` never became reachable. |
 | Sandbox create/command/file/kill | NOT RUN | Blocked by server startup failure. |
 
diff --git a/docs/runbooks/independent-review.md b/docs/runbooks/independent-review.md
new file mode 100644
index 0000000..44b119c
--- /dev/null
+++ b/docs/runbooks/independent-review.md
@@ -0,0 +1,41 @@
+# Independent review round trip
+
+Prepares an advisory review packet, runs the reviewer in a sandbox bound to the review mission, and collects a validated recommendation. See the [mission packet schema](../architecture/mission-packet-schema.md). This procedure never grants Main/owner acceptance or promotes source work.
+
+## Why a sandbox is required
+
+`uh mission review-prepare` emits a complete packet under `.harness/missions/<review-id>/`: the captured `review-request.json`, a request-pinned `review-report.schema.json`, and a `mission.yaml` with a guard policy whose `write_roots` are limited to the report directory and with network, git, and package installs denied. The reviewer must run in a sandbox bound to that review mission — `assertIndependentReviewExecution` refuses execution from the project root — so the reviewer can write only the report and cannot touch the source work under review.
+
+## Running it
+
+Four commands, in order, from the canonical project root:
+
+```sh
+# 1. Capture the review inputs and emit the packet (does not start a runtime).
+uh mission review-prepare <review-id> --sources '[{"missionId":"<source-mission-id>"}]' --runtime command-code --model <reviewer-model>
+
+# 2. Create the sandbox bound to the review mission, branching from the integrated ref.
+uh sandbox create <review-sandbox-id> --mission <review-id> --base <integrated-ref>
+
+# 3. Run the review mission; it auto-routes into the bound sandbox.
+uh mission run .harness/missions/<review-id>/mission.yaml --runtime command-code
+
+# 4. Validate provenance, evidence, and the exact-id coverage; print the assessment.
+uh mission review-collect <review-id>
+```
+
+Notes:
+
+- `--runtime` must be the same value passed to `review-prepare`; the packet binds the runtime and model, and a mismatch is refused.
+- The packet objective lists, per source, the exact acceptance criterion ids and required check ids the report must contain — including explicit `acceptance: [] exactly; add nothing` when a list is empty — and points everything that no listed id covers at `observations`, never into `acceptance` or `checks`.
+- `review-collect` re-checks request and snapshot digests, requires a successful native runtime receipt bound to the request, and validates that each acceptance criterion and required check id is covered exactly once. Invented ids are rejected; observations are surfaced in the assessment and printed summary without changing the recommendation.
+
+## What it proves
+
+- The recommendation is evidence-backed and advisory: a recorded acceptance decision with `human_acceptance_required: true`.
+- The report covered every listed id exactly once, with no invented ids, in a sandbox that could only write the report.
+
+## What it does not prove
+
+- Model intelligence or prompt compliance. The reviewer model's judgment is not validated by the harness.
+- Main/owner acceptance. A `pass` recommendation still requires a human promotion decision on the source missions.
diff --git a/docs/runbooks/mcp-server.md b/docs/runbooks/mcp-server.md
new file mode 100644
index 0000000..e263800
--- /dev/null
+++ b/docs/runbooks/mcp-server.md
@@ -0,0 +1,112 @@
+# Model Context Protocol (MCP) Server
+
+Operator runbook for running and integrating the Ultimate Harness Model Context Protocol (MCP) server.
+
+---
+
+## 1. Overview
+
+The `uh mcp serve` command launches a local, read-only MCP server communicating over newline-delimited JSON-RPC 2.0 via standard input and standard output (`stdio`).
+
+It allows external MCP host applications (e.g. Claude Desktop, Cursor, Command Code, or custom orchestrators) to inspect harness project status, query historical mission runs, and review run artifacts without executing agent runtimes or altering local files.
+
+### Key Properties
+
+- **Strictly read-only**: Tools inspect local state and metadata only. No tool executes a runtime adapter, writes or modifies files, creates sandboxes, renders prompts, or spends tokens.
+- **Clean stdio contract**: Only valid JSON-RPC protocol messages are emitted on `stdout`. Informational logs, banners, and update notices are suppressed. Diagnostics and fatal errors are routed strictly to `stderr`.
+- **Lifecycle**: The server listens on `stdin` for requests until `stdin` closes (EOF), then exits cleanly with status code `0`.
+- **Path confidentiality**: Absolute filesystem paths are never leaked over protocol responses. All emitted paths are normalized relative to the project root.
+
+---
+
+## 2. CLI Usage
+
+```bash
+# Serve the current working directory as project root
+uh mcp serve
+
+# Serve an explicit project root
+uh mcp serve --root /path/to/project
+```
+
+### Options
+
+| Option | Default | Description |
+|---|---|---|
+| `--root <path>` | Current working directory (`cwd`) | Path to the target Ultimate Harness repository root. |
+
+---
+
+## 3. Protocol Support & Exposed Tools
+
+The server supports modern and legacy MCP protocol versions:
+- `2026-07-28` (stateless negotiation via `server/discover`, per-request version meta, cache hints)
+- `2025-11-25` (stateful handshake via `initialize`, `notifications/initialized`, `ping`)
+
+### Supported Methods
+
+- `server/discover`: Discovers server capabilities, metadata, and supported protocol versions.
+- `initialize`: Performs client/server capability handshake for legacy clients.
+- `ping`: Health check returning an empty completion result.
+- `tools/list`: Lists available tools with JSON schemas and usage hints.
+- `tools/call`: Executes an authorized read-only tool.
+
+### Exposed Tools
+
+The server registers exactly three read-only tools:
+
+1. **`uh_status`**
+   - **Description**: Returns project initialization state, total mission count, registered sandbox count, active adapters, unpromoted work, and harness version.
+   - **Arguments**: None (`{}`).
+
+2. **`uh_runs`**
+   - **Description**: Lists indexed mission runs or summarizes run groups with Pareto frontier trade-offs.
+   - **Arguments**:
+     - `mission_id` (optional string): Filter runs by mission identifier.
+     - `group_by` (optional enum): Group and aggregate runs by `runtime`, `model`, `workflow_profile`, or `stop_code`.
+
+3. **`uh_run`**
+   - **Description**: Retrieves record metadata and identifies available artifact files (e.g., `events.ndjson`, `runtime-result.yaml`, `verification.yaml`) for a specific mission run.
+   - **Arguments**:
+     - `mission_id` (required string): Mission identifier.
+     - `run_id` (required string): Run identifier.
+
+---
+
+## 4. Host Configuration
+
+To register the Ultimate Harness MCP server in an MCP-compliant client, add a server entry using the `uh` executable.
+
+### Generic MCP Host Configuration Example
+
+```json
+{
+  "mcpServers": {
+    "ultimate-harness": {
+      "command": "uh",
+      "args": [
+        "mcp",
+        "serve",
+        "--root",
+        "/path/to/project"
+      ]
+    }
+  }
+}
+```
+
+Replace `/path/to/project` with the path to your target project root. If the client launches `uh` directly inside the repository working directory, `--root` may be omitted:
+
+```json
+{
+  "mcpServers": {
+    "ultimate-harness": {
+      "command": "uh",
+      "args": [
+        "mcp",
+        "serve"
+      ]
+    }
+  }
+}
+```
diff --git a/docs/runbooks/resource-wave-smoke.md b/docs/runbooks/resource-wave-smoke.md
new file mode 100644
index 0000000..6b02fae
--- /dev/null
+++ b/docs/runbooks/resource-wave-smoke.md
@@ -0,0 +1,32 @@
+# Resource-wave smoke
+
+Exercises resource-wave admission and settlement through the built CLI using deterministic fixtures, without calling a model. `tests/runtime-resources.test.ts` covers admission arithmetic; this procedure checks the command path described in [runtime targets](../runtime-targets.md). It does not establish live-provider acceptance.
+
+## What it runs
+
+`scripts/smoke/resource-wave/run.mjs` creates a throwaway git project per scenario under a short temporary root, registers the `oh-my-pi` adapter with its `cli_command` pointed at `scripts/smoke/resource-wave/fake-omp.mjs`, writes a three-worker team mission with `max_parallel: 2` and a `0.5` USD reservation per worker, and runs `uh mission run-team wave --retain`. The fixture attests a fixed route, writes one file per worker, sleeps briefly, and reports usage with or without a cost total.
+
+| Scenario | Resources | Expected canonical outcome |
+|---|---|---|
+| A | `max_cost_usd: 1.2` | Two workers admitted and succeed; the third is `blocked`; team `blocked` with `admission_blocked_reason` "Remaining team cost budget cannot reserve another worker"; parent `cost_usd` is the measured 1.0 |
+| B | `max_cost_usd: 3` | Second wave admitted; all three succeed; team `passed`; exit 0 |
+| C | fixture reports no cost | First wave succeeds; the second is blocked with "Completed worker cost is unknown; refusing further paid admission"; parent `cost_usd` stays unknown, never zero |
+| D | `worker_memory_mb: 999999` | Refused before any worktree or launch: "Insufficient resource headroom to launch one worker within its memory cap" |
+
+## Running it
+
+```sh
+npm run build
+node scripts/smoke/resource-wave/run.mjs          # all four
+node scripts/smoke/resource-wave/run.mjs A C      # a subset
+UH_SMOKE_DEEP=1 node scripts/smoke/resource-wave/run.mjs B   # nest the project so the worker run directory is deep
+```
+
+Windows only: a memory cap requires the native Job guardian, and the team runner refuses it elsewhere. Set `UH_SMOKE_ROOT` to move the throwaway projects; keep it short. Projects are retained for inspection: the canonical facts are under `<project>/.harness/missions/wave/runs/<parent-run>/team-state.json`, and each worker's result under `.harness/missions/wave/team/artifacts/<parent-run>/workers/<worker>/`.
+
+## What it does not prove
+
+- Provider billing. The fixture's cost is a reported number; UH labels it `runtime_estimate`. Cost admission is a reservation control, not a charge cap.
+- Model behaviour. The fixture never reads the prompt.
+- Deep project paths, unless run with `UH_SMOKE_DEEP=1`. That mode nests the project so the worker run directory exceeds the classic Windows path limit; it is the regression check for the guardian executable location and for the guardian's own extended-length path handling.
+
diff --git a/docs/runbooks/run-control.md b/docs/runbooks/run-control.md
new file mode 100644
index 0000000..95433d6
--- /dev/null
+++ b/docs/runbooks/run-control.md
@@ -0,0 +1,308 @@
+# Run control
+
+How to see what is running, what it is doing, and what to do when a controller
+is gone.
+
+## Who is running
+
+Every runtime attempt claims a live-run entry at the PROJECT root the moment it
+claims its attempt (`claimRuntimeAttempt`). `uh ps` reads that registry, merges
+in whatever each run's `runtime-control.json` currently says, and scans the
+harness tree for pre-registry `runtime-control.json` files. The answer comes
+back in under a second even on a large fixture, and it never needs the model.
+
+```bash
+# One line per live run, from the project root.
+uh ps
+
+# Machine-readable: schema, counts, and the full record per run.
+uh ps --json
+
+# Include runs that already settled, kept for 24 h ("what just ran?").
+uh ps --all
+```
+
+Each line carries the run id, mission, team role (for team workers), runtime and
+model, verdict, turns, denials, heartbeat age, the last tool and its age, and
+the native pids in the controller's process tree:
+
+```
+20260922T101500Z-a1b2c3  wave-audit-0  team=live-runs  command-code/gpt-5  live  turns=12  denials=0  hb=2s  last=edit_file (3s)  pids=3140,3141
+```
+
+`uh status` also prints a single summary line from the same function:
+
+```
+Live runs: 4 (orphaned: 0)
+```
+
+### Verdicts
+
+| Verdict | Meaning | What to do |
+|---|---|---|
+| `live` | The controller process is alive and the run reports `running` with a fresh heartbeat. | Nothing — it is working. |
+| `orphaned` | The run reports `running` but its controller pid is **gone**. Tokens may still be burning in a detached child. **This is the incident case.** | `uh kill --orphans` (see [Stopping runs](#stopping-runs)). `uh ps` exits `3` when any run is orphaned. |
+| `stale` | The controller is alive but its heartbeat is older than twice the stall window (~2 min by default). | Check `last=` and the run's `events.ndjson`; the controller may be wedged. |
+| `settled` | Terminal status (`passed`, `failed`, `blocked`, `cancelled`). Shown only with `--all`, kept for 24 h. | Nothing — it is finished. |
+
+### Exit codes
+
+| Code | Meaning |
+|---|---|
+| `0` | Nothing is orphaned. |
+| `3` | At least one discovered run is orphaned. |
+| `1` | `uh ps` itself failed (bad `--root`, unreadable project). |
+
+### Where the registry lives
+
+- Registry: `.harness/live-runs/<run_id>.json` under the project root
+  (`{ schema_version: "uh.live-run.v0", run_id, mission_id, runtime, model?,
+  team?: { mission_id, role }, artifact_root, control_path, controller_pid,
+  started_at, status?, stop_code?, settled_at? }`).
+- The project root is the nearest ancestor of an artifact root that holds
+  `.harness/project.yaml`. A team worker's artifact root lives under
+  `.harness/missions/<team>/team/artifacts/<run>/workers/<role>` and registers
+  with its team mission id and role.
+- The registry directory is gitignored (`.harness/live-runs/`) — it is local
+  execution state, not a publication input.
+
+### When a run is orphaned
+
+`uh ps` tells you it happened; it does not kill anything on its own. `uh kill`
+does the stopping.
+
+```bash
+# See the orphaned run and its native process tree.
+uh ps
+
+# Settle every orphaned run (and nothing else) from the project root.
+uh kill --orphans
+
+# Cancel an owned local run by id (writes a cancel request the controller reads).
+uh mission cancel --mission <mission-id> --run-id <run-id> --root <project>
+```
+
+`uh mission cancel` resolves the run through the same discovery `uh ps` uses, so
+`--root` may be the project root even when the run is a team worker whose
+`runtime-control.json` lives deeper in the harness tree.
+
+## Asking for a report
+
+`uh ps` tells you *which* runs exist and their verdict. `uh report` answers the
+follow-up — "what is this run doing right now?" — for one run, in under a second
+and without spending a token. It reads only what is already on disk (the run's
+`runtime-control.json` and its `events.ndjson`) and never starts a controller or
+calls a model.
+
+```bash
+# One run, by id or by a unique prefix of one.
+uh report 20260922T101500Z-a1b2c3
+uh report 20260922T101500Z-a1b2
+
+# Machine-readable, plus the projection knobs.
+uh report 20260922T101500Z-a1b2c3 --json
+uh report 20260922T101500Z-a1b2c3 --last 20   # project the last 20 tool calls (default: 10)
+uh report 20260922T101500Z-a1b2c3 --full      # read the whole events.ndjson, not just its last 256 KB
+```
+
+A report carries:
+
+- **Mission, team role, runtime and model** — the run's identity, from the live-run
+  registry and its control file. (A registered run records its model; a
+  pre-registry run discovered by scan may not have one.)
+- **Liveness verdict** — the same `live` / `orphaned` / `stale` / `settled`
+  decision `uh ps` makes, against the same process lister.
+- **Elapsed, turns, denials** — elapsed is `started_at` to the settled time (or
+  now); turns and the denial count come from `runtime-control.json`.
+- **Denials, with guard class and target** — each denial in the stream, reduced to
+  its guard class (`write_outside`, `git_mutation`, `package_install`,
+  `network_client`, and the other `ToolGuardClass` values, or `denied` when the
+  stream disclosed no finer class) and its **relative** target.
+- **Tokens and cost** — reported when the stream carries them; otherwise `null`
+  with a `tokens_unknown_reason` / `cost_unknown_reason`. Cost is never guessed:
+  a price the runtime reported is `reported`, a harness estimate from
+  `.harness/prices.yaml` is `estimated`, and anything else stays unknown.
+- **Activity** — the last N completed tool calls, projected with the same
+  `projectActivity` the loop probe uses: tool, kind, target, ok, error class and
+  the age of the completion.
+- **Loop signals** — `identical_repeats`, `alternating_pairs` and
+  `distinct_targets` over that window, computed deterministically with no model.
+- **Files written so far** — the distinct write targets that completed
+  successfully, as relative paths.
+- **Last assistant text** — the last assistant-authored text, bounded to 600
+  characters and scrubbed of recognizable credentials.
+
+Two guarantees hold for every field: no absolute path and no credential is ever
+printed. Guard targets and written files are resolved relative to the run's
+working directory (or to the bounded placeholders `<outside>` / `<pattern>` /
+`unknown`), and the assistant text is passed through a conservative key/token
+redactor before it is bounded.
+
+By default only the **last 256 KB** of `events.ndjson` is read — the tail is
+where the current window lives, and it keeps the answer instant even on a huge
+log. `--full` reads the whole file when you need the history the tail dropped
+(for example, an early usage event that prices the run).
+
+Exit codes: `0` on success, `1` when the run cannot be resolved (unknown or
+ambiguous id) or the report itself fails.
+
+## Stopping runs
+
+`uh kill` stops runs and proves they are dead. Targets are always resolved
+through `discoverRuns` — the live-run registry plus the bounded harness scan —
+so the artifact root is never something the operator has to know.
+
+```bash
+# One run, by id or by a unique prefix of one.
+uh kill 20260922T101500Z-a1b2c3
+uh kill 20260922T101500Z-a1b2
+
+# Everything belonging to a mission, one worker role, or a whole team.
+uh kill --mission wave-audit-0
+uh kill --role backend
+uh kill --team wave-audit-0
+
+# The project sweeps.
+uh kill --all
+uh kill --orphans
+```
+
+For each target, in order:
+
+1. Resolve the artifact root that owns the run. A team worker's
+   `runtime-control.json` sits under
+   `.harness/missions/<team>/team/artifacts/<parent-run>/workers/<role>`, and
+   that is the root the cancellation is written to.
+2. Ask the controller to stop with the normal `uh mission cancel` request.
+3. Wait up to `--wait-ms` (default `10000`) for the controller and every native
+   process in its tree to exit, against the same process lister `uh ps` uses.
+4. If anything survives, terminate the tree: `taskkill /PID <pid> /T /F`
+   through PowerShell on Windows, a SIGKILL of the process group on POSIX.
+   `--force` skips steps 2 and 3 and goes straight here.
+5. Re-list the processes, settle the live-run registry entry, and report.
+
+```bash
+# Machine-readable, and what the operator sees:
+uh kill --team wave-audit-0 --json
+```
+
+```
+20260922T101500Z-a1b2c3  wave-audit-0  team=live-runs  oh-my-pi  cancelled_gracefully  stop=cancelled  pids=3140,3141
+20260922T101502Z-d4e5f6  wave-audit-0  team=-          ultimate-harness-team  force_killed  stop=cancelled  pids=3100
+team=wave-audit-0  run=20260922T101500Z-parent  team-state cancelled
+matched=3 gracefully=2 forced=1 orphans=0 alive=0 errors=0
+```
+
+### Outcomes
+
+| Outcome | Meaning |
+|---|---|
+| `cancelled_gracefully` | The controller settled its own run and its process tree is gone. |
+| `force_killed` | The controller never settled or never exited; the owned tree was terminated and the re-list confirms it is gone. |
+| `still_alive` | Pids survived even the forced kill. They are listed as `surviving=` and the command exits `1`. |
+| `orphan_settled` | The controller pid was already gone, so no process was touched; the record was closed with `stop_code: controller_lost`. |
+| `skipped_settled` | The run had already settled for another reason; nothing was asked of it. |
+| `error` | That target could not be stopped (unreadable artifacts, a settlement conflict). Other targets are still processed. |
+
+Exit codes: `0` when every matched target is stopped, `1` when anything is
+`still_alive` or `error`, or when the command itself failed (bad selector,
+ambiguous prefix, unknown run id).
+
+### Orphans
+
+An orphaned run has no controller to ask and no tree to chase, so `uh kill
+<run-id>` never terminates anything for it: it closes the record through the
+same reconcile path the native guardian feeds, writing a `controller_lost`
+receipt first when the guardian never got the chance (the POSIX and
+pre-guardian cases), then reconciling canonical artifacts. `uh kill --orphans`
+does every orphaned run at once — the same set that makes `uh ps` exit `3`.
+
+That receipt attests that the owned tree is gone, so it is withheld when the
+process table still parents live processes to the dead controller pid (Windows
+keeps a stale `ParentProcessId`, so a detached runtime stays attributable
+there). Such a run is reported `still_alive` with those pids and exits `1`; the
+record is only closed by `--force`, which says "I know a native process is
+still parented there, close the record anyway" and still does not signal it.
+
+### Team cascade
+
+`--team <id>` stops a team in the only safe order: each worker run first, then
+the team controller that hosted them, then `team-state.json` is marked
+cancelled so the leader's integration never lands. Because a team controller is
+shared by its workers, `uh kill <worker-run-id>` on its own only waits for that
+worker's own settlement — it will not kill a pid its siblings are still running
+under. Use `--team` (or `--all`) for that.
+
+### What it will not do
+
+* A pid is signalled only when it is a run's recorded controller pid or a
+  descendant of it, taken from the process snapshot captured before anything
+  was asked to stop. No other process on the machine is reachable from here.
+* An empty process table is a hard error, not a licence to declare every run
+  dead.
+* Nothing is inferred from a stale heartbeat alone; liveness is the process
+  lister's answer.
+
+## Steering a worker
+
+A worker can be nudged mid-run only by stopping it and resuming its native
+session with a message. `uh steer` does both in one command:
+
+```bash
+# Stop the run, then resume its saved session with the message injected as the
+# first instruction of the resumed turn. The new run id is printed.
+uh steer 20260922T101500Z-a1b2c3 "Skip the retry loop; the endpoint already returns 429."
+
+# Ask for a status report before the worker continues.
+uh steer <run-id> "Continue" --report
+
+# Machine-readable outcome.
+uh steer <run-id> "<message>" --json
+```
+
+`--report` prepends a fixed request: write a report in the shape "done so far /
+in progress / blocked on / next three actions / files touched" before anything
+else, then continue.
+
+Steering resolves the run exactly like `uh ps` does — by id or a unique prefix,
+from the project root, including team workers under their own artifact roots. It
+cancels through the normal cancel path and waits for settlement, then starts a
+new run for the same mission, in the same artifact root and sandbox, bound to
+`resume_from_run = <run-id>`. The operator's message becomes the recovery notes.
+
+**The honest caveat**: steering is not a live channel. It costs a stop and a
+restart of the native session. The transcript and prior work survive because the
+runtime resumes the same session, but the worker re-reads its context before it
+acts on the message.
+
+## Resuming
+
+`uh resume` continues a run that has already settled, without a new message:
+
+```bash
+uh resume <run-id> [--notes "<text>"] [--json]
+```
+
+It refuses a run that is still live — steer that one instead — and refuses a
+runtime with no session resume path:
+
+```
+unsupported: <runtime> has no session resume
+```
+
+For a supported runtime (Command Code, oh-my-pi, Claude Code) it starts a new
+run in the same mission, artifact root, and sandbox with
+`resume_from_run = <run-id>`, and records the lineage both ways: `resumed_from`
+on the new run and `resumed_by` on the old one, with `resume_origin: "operator"`
+in `runs/<run-id>/resume-link.json` on each. Operator resumes are authorized
+outside the automatic recovery loop, so they never spend the mission's
+`recovery.max_resumes` budget.
+
+## Related
+
+- `uh status` / `uh status --json` include live-run counts.
+- `uh mission cancel` — cancel an owned local run.
+- `uh kill` — stop runs by id, role, mission, team, `--all` or `--orphans`.
+- `uh steer` — cancel a run and resume its session with a message.
+- `uh resume` — continue a settled run's session as a new run.
+- Team fan-out and worker artifact layout: `docs/runbooks/resource-wave-smoke.md`.
diff --git a/docs/runbooks/supervisor-loop-smoke.md b/docs/runbooks/supervisor-loop-smoke.md
new file mode 100644
index 0000000..65a9f76
--- /dev/null
+++ b/docs/runbooks/supervisor-loop-smoke.md
@@ -0,0 +1,50 @@
+# Supervisor-loop smoke
+
+Exercises execution limits, denial budgets, repeated-failure thresholds, stall timeouts, protected-path policies, deadline grace and bounded recovery through the built CLI with deterministic fixtures. See [runtime targets](../runtime-targets.md). These checks do not establish live-provider or native-hook acceptance.
+
+## What it runs
+
+`scripts/smoke/supervisor-loop/run.mjs` executes thirteen isolated probe scenarios against the built CLI: ten use the `oh-my-pi` adapter configured with `fake-omp-probe.mjs`, and three use the `command-code` adapter configured with `fake-command-code-probe.mjs`. Each fixture emits the native event shapes recorded in [`docs/architecture/runtime-events.md`](../architecture/runtime-events.md): OMP uses `tool_execution_start`/`tool_execution_end` with `args`, `isError`, and `result`; Command Code uses its `event` envelope with `tool_queued`/`tool_hooks`/`tool_hook_blocked` and `input`. For each probe, the runner initializes a throwaway git repository under `<temp>/uh-supervisor-loop/<probe>`, registers the matching adapter and fixture as `cli_command`, writes a mission, and checks the canonical control and result artifacts.
+
+| Probe | Runtime and exact fixture event sequence | Expected canonical outcome |
+| --- | --- | --- |
+| `denials_budget` | OMP: `session`, `model_request_start`, then three repetitions of `tool_execution_start(args.path)` → `tool_execution_end(isError: true, result.content[0].text: "CONTRACT: writes are temporarily locked")`; the first attempt idles after the third denial. Resume emits `session`, `model_request_start`, `turn_start`, `turn_end`, `message_end`, `agent_end`. | First attempt halted with `stop_code: "denial_budget"` and `stop_reason` matching `write_file out/c.txt: writes are temporarily locked`; automatic recovery resumes and the second attempt passes. |
+| `fails3` | OMP: `session`, `model_request_start`, then three repetitions of `tool_execution_start(args.command: "python out/missing_script.py")` → `tool_execution_end(isError: true, result.exitCode: 1)`; the first attempt idles. Resume emits the normal OMP success sequence ending in `agent_end`. | First attempt halted with `stop_code: "repeated_failure"` and a reason reporting the repeated command; automatic recovery resumes and the second attempt passes. |
+| `inflight_stall` | OMP: `session` → `model_request_start` → `tool_execution_start(args.command: "sleep")` → 350 ms delay → `tool_execution_end(isError: false, result.exitCode: 0)` → `message_end` → `agent_end`. | First attempt passes without stopping or resuming (`latest.run_id === "initial"`), proving an in-flight tool suppresses the stall timeout. |
+| `stall` | OMP: `session` → `model_request_start`, then no further events until the stall limit; recovery emits the normal OMP success sequence ending in `agent_end`. | First attempt halted with `stop_code: "stall"`; automatic recovery resumes and the second attempt passes. |
+| `turncap` | OMP: `session` → `model_request_start` → four `turn_start`/`turn_end` pairs; no terminal event. | First attempt halted with `stop_code: "turn_limit"` and does not auto-resume (`latest.run_id === "initial"`). |
+| `deadline_grace` | OMP: `session` → `model_request_start` → four `turn_start`/`turn_end` pairs; the configured four-turn budget stops before the grace boundary. On resume, emits one turn and writes `out/REPORT.md` beginning `INCOMPLETE` with a `Missing for the next step` section. | First attempt halted with `stop_code: "deadline"` and a remaining-budget reason; exactly one grace recovery records `grace: true`, result `completion: "incomplete"`, and the declared output exists, so the final attempt passes. |
+| `tamper` | OMP: `session` → `model_request_start` → `tool_execution_start(args.path: ".harness/adapters/oh-my-pi.yaml")`; no tool end or terminal event. | First attempt halted with `stop_code: "policy"` and the protected-path reason; policy stop is final (`latest.run_id === "initial"`). |
+| `tamper_absolute` | OMP: `session` → `model_request_start` → `tool_execution_start(args.path: absolute <project>/.harness/adapters/oh-my-pi.yaml)`; no tool end or terminal event. | First attempt halted with `stop_code: "policy"` naming `.harness`; it does not resume. |
+| `launcher_gone` | OMP: `session` → `model_request_start` → `turn_start` → `turn_end`, then the controller is killed while the fixture idles. Explicit resume emits `session`, `model_request_start`, `turn_start`, `turn_end`, `message_end`, `agent_end`. | Initial `runtime-control.json` records `stop_code: "controller_lost"`; explicit resume reconciles settlement and passes. |
+| `preflight_fail` | No fixture events: runtime preflight rejects `needs_network: true` before launching the OMP fixture. | Process exits non-zero with `runtime preflight failed`; no start marker is created. |
+| `cc_denials_budget` | Command Code envelope: `session`, `model_request_start`, then three repetitions of `tool_queued(input.path)` → `tool_hooks(phase: "pre", outcome.kind: "block")` → `tool_hook_blocked(hookOutput)`; the first attempt idles. Resume emits `session`, `model_request_start`, `run_end`, `result`. | First attempt halted with `stop_code: "denial_budget"`; automatic recovery resumes and the second attempt passes. |
+| `cc_tamper` | Command Code envelope: `session` → `model_request_start` → `tool_queued(input.path: ".harness/adapters/command-code.yaml")`; no terminal event. | First attempt halted with `stop_code: "policy"` and does not resume. |
+| `cmdc_shell_mutation` | Command Code envelope: `session` → `model_request_start` → `tool_queued(toolName: "shell_command", input.command: "rm .harness/temporary.txt")`; no terminal event. | First attempt halted with `stop_code: "policy"` naming `.harness/temporary.txt` and does not resume, proving the documented Command Code shell mutation shape is stopped before execution. |
+
+The OMP and Command Code fixtures intentionally emit the native shapes recorded in [`docs/architecture/runtime-events.md`](../architecture/runtime-events.md), rather than substituting one runtime's event stream for the other.
+
+## Running it
+
+```sh
+npm run build
+node scripts/smoke/supervisor-loop/run.mjs
+```
+
+To run a subset of probes:
+
+```sh
+node scripts/smoke/supervisor-loop/run.mjs denials_budget stall
+```
+
+The throwaway project directories are created under `<temp>/uh-supervisor-loop/<probe>`:
+- Canonical control receipt: `<project>/.harness/missions/<probe>/runs/<run_id>/runtime-control.json`
+- Canonical result: `<project>/.harness/missions/<probe>/runs/<run_id>/runtime-result.yaml`
+- Recovery record (on resumed attempts): `<project>/.harness/missions/<probe>/runs/<run_id>/runtime-recovery.json`
+- Run index: `<project>/.harness/missions/<probe>/runs/index.json`
+
+## What it does not prove
+
+- Model intelligence or prompt compliance. The probe fixtures emit deterministic JSON event streams without invoking an LLM.
+- Real hook execution or policy engine integration. Command Code blocks are represented by recorded `tool_hooks` and `tool_hook_blocked` shapes; OMP denials are represented by the recorded `tool_execution_end` error result, not a synthetic hook event.
+- Seam observation cannot undo a write. The observation seam intercepts the first native tool event (`tool_execution_start` for OMP or `tool_queued` for Command Code), but if an unmanaged process or tool bypasses the event stream and performs direct disk I/O, the supervisor has no filesystem snapshot or rollback mechanism to revert physical modifications.
diff --git a/docs/runbooks/tool-guard-smoke.md b/docs/runbooks/tool-guard-smoke.md
new file mode 100644
index 0000000..a54d9e0
--- /dev/null
+++ b/docs/runbooks/tool-guard-smoke.md
@@ -0,0 +1,41 @@
+# Tool-guard smoke
+
+Proves, through the built hook and OMP extension, that a resolved tool-guard policy denies a Git mutation and a protected-root write while allowing a read-only Git command. It also proves that both denials append newline-delimited records to the run log. The smoke does not invoke a model or a live runtime.
+
+## What it runs
+
+`scripts/smoke/tool-guard/run.mjs` creates a temporary worker root and writes a `uh.tool-guard.v0` policy with `write_roots: ["out"]`, Git/package/network denial enabled, the default agent-client list reduced to `omp`, and the default protected roots. It then:
+
+1. starts the built Command Code hook with `UH_TOOL_GUARD_POLICY` and `UH_TOOL_GUARD_LOG`;
+2. submits `shell_command` with `git commit -am x` and asserts a deny response;
+3. submits `shell_command` with `git status T:/forbidden` and asserts no response;
+4. loads the built OMP extension, submits `write_file` targeting `.harness/x`, and asserts `{ block: true }` with the no-retry suffix; and
+5. asserts that the log contains two denial lines.
+
+The policy and log are temporary smoke inputs. Native mission runs persist the same artifacts under their run directory; see [Tool Guard](../tool-guard.md).
+
+## Running it
+
+```sh
+npm run build
+node scripts/smoke/tool-guard/run.mjs
+```
+
+Expected output:
+
+```text
+PASS tool-guard Command Code + OMP denials and log lines
+```
+
+## What it proves
+
+- Command Code's `PreToolUse` command hook can deny a shell Git mutation using the policy file.
+- A read-only Git command is not denied by the Git-mutation rule.
+- The OMP extension blocks a protected-root write before execution.
+- Both enforcement seams write the same log shape, including timestamp, tool, class, target, and reason.
+
+## What it does not prove
+
+- It does not invoke an LLM or prove model compliance.
+- It does not exercise a full `uh mission run` or the supervisor's native event stream.
+- It does not prove operating-system isolation or rollback for an unmanaged process that bypasses the hook or extension.
diff --git a/docs/runbooks/using-the-tui.md b/docs/runbooks/using-the-tui.md
index 555e73e..b96db49 100644
--- a/docs/runbooks/using-the-tui.md
+++ b/docs/runbooks/using-the-tui.md
@@ -189,6 +189,13 @@ so empty states stay distinguishable from load errors.
   `.harness/missions/<id>/events.ndjson` for live updates.
 - `Esc` cancels without starting.
 
+With the default `[auto-route]`, a mission that has no bound sandbox is refused
+before the runtime starts: the child exits `2` with `[BLOCKED] mission <id> has
+no bound sandbox; ...`. Either bind one from the Sandboxes pane
+(`uh sandbox create <sandbox-id> --mission <id>`) or `Tab` to `[no-sandbox]` to
+run in the project root. See
+[runtime-targets.md](../runtime-targets.md#sandbox-routing).
+
 While a run is active, the mission detail's right pane swaps to a
 **Live events** ScrollBox that auto-scrolls to the bottom:
 
diff --git a/docs/runbooks/worker-contract-smoke.md b/docs/runbooks/worker-contract-smoke.md
new file mode 100644
index 0000000..1698c36
--- /dev/null
+++ b/docs/runbooks/worker-contract-smoke.md
@@ -0,0 +1,41 @@
+# Worker-contract smoke
+
+Exercises team contract derivation, route overrides, turn limits and output verification through the built CLI with deterministic fixtures. See [runtime targets](../runtime-targets.md) and the [mission schema](../architecture/mission-packet-schema.md). This procedure does not establish live-provider acceptance.
+
+## What it runs
+
+`scripts/smoke/worker-contract/run.mjs` creates a throwaway git project under a temporary directory, registers the `oh-my-pi` adapter pointing `cli_command` to `scripts/smoke/resource-wave/fake-omp.mjs`, writes a two-worker team mission `contract`, and runs `uh mission run-team contract --retain`.
+
+The mission defines separate worker contracts:
+- `alpha`: assigned role `alpha`, objective `Produce alpha's answer`, runtime model override `fixture/model-a`, turn limit `max_turns: 3`, and declared expected output file `out/answer-alpha.txt`.
+- `beta`: assigned role `beta`, runtime model override `fixture/model-b`, turn limit `max_turns: 7`, and declared expected output file `out/report.md`.
+- `leader`: mechanical integrator using `oh-my-pi`.
+- `verification`: a noop required check that exits with code 0.
+
+The mock runner simulates execution by parsing its working directory name, writing `out/answer-<worker>.txt`, attesting the requested model route, and emitting runtime usage.
+
+| Entity | Role / Target | Expected canonical outcome |
+| --- | --- | --- |
+| `alpha` | Worker | Succeeded; output `out/answer-alpha.txt` passed verification; attested model `model-a`; turn limit recorded as `max_turns: 3`. |
+| `beta` | Worker | Blocked; declared output `out/report.md` missing (`Declared output out/report.md: Declared output is missing, unreadable, or outside the workspace`); attested model `model-b`; turn limit recorded as `max_turns: 7`. |
+| `leader` | Mechanical lead | Merges `alpha` cleanly; skips `beta` due to `blocked` status; verification checks pass. |
+| `team` | Mission run | Overall status `passed_partial`; process exit code `0`. |
+
+## Running it
+
+```sh
+npm run build
+node scripts/smoke/worker-contract/run.mjs
+```
+
+The throwaway project is retained at `<temp>/uh-worker-contract` for inspection:
+- Canonical team state: `<project>/.harness/missions/contract/runs/<parent-run>/team-state.json`
+- Worker artifact roots: `<project>/.harness/missions/contract/team/artifacts/<parent-run>/workers/<worker>/`
+- Worker derived packets: `<artifact_scope>/.harness/missions/contract/mission.yaml`
+- Worker runtime results: `<artifact_scope>/.harness/missions/contract/runs/<worker-run>/runtime-result.yaml`
+
+## What it does not prove
+
+- Model intelligence or prompt compliance. The fixture emits deterministic responses and does not invoke an LLM.
+- Provider billing or network transport. Attested routes and token usages are simulated by the fixture.
+- Complex git merge conflict resolution. The smoke exercises clean branch merging for the surviving worker and excludes the blocked worker.
diff --git a/docs/runtime-targets.md b/docs/runtime-targets.md
index a1c595b..e10c41d 100644
--- a/docs/runtime-targets.md
+++ b/docs/runtime-targets.md
@@ -10,6 +10,50 @@ Ultimate Harness is runtime-agnostic: mission packets and verification artifacts
 | OpenRouter | `openrouter` | OpenAI-compatible HTTP | Requires `OPENROUTER_API_KEY`. |
 | Pi CLI | `pi` | Local CLI | Base Pi command surface. |
 | oh-my-pi | `oh-my-pi` | Local CLI | Opt-in OMP route with documented posture. |
+| Command Code | `command-code` | Local CLI | Print-mode runner; requires a guard or explicit `runtime_config.permission_mode`. `runtime_config.role: orchestrator` arms harness-only controller commands. |
+| Claude Code | `claude-code` | Native CLI with stream JSON | Worker guard required; integrated coordinator acceptance remains incomplete. |
+| Anthropic Messages API | `anthropic` | Local HTTP API | Native Anthropic Messages API adapter. |
+| Agent-Client Protocol | `acp` | Local stdio (JSON-RPC 2.0) | Standard ACP v1 runner for headless agent processes (OpenHands, Zed, custom). See [runbook](./runbooks/acp-setup.md). |
+
+Command Code print-mode missions must declare a `guard` block or an explicit `runtime_config.permission_mode`; without either, planning refuses before process spawn, including custom CLI commands. See [Tool Guard](./tool-guard.md) for the permission-mode and hook boundary.
+
+`runtime_config.role` defaults to `worker`. An orchestrator mission must still declare a `guard` block; the guard artifact then carries `controller_commands: true`, and the Command Code `PreToolUse` hook admits only harness controller commands (`uh mission ...`, `node dist/cli.js mission ...`, and the other controller verbs) while agent CLIs, native sub-agent tools and `--force`-style invocations stay denied. The orchestrator prompt ends with a fixed delegation paragraph: delegate only through harness commands, give every delegated worker its own mission packet and bound sandbox, wait for a worker settlement line before depending on its output, and never do a worker job yourself. Fleet admission reads `role`, so a model authorized only as `worker` is refused as an orchestrator.
+
+### Claude Code boundaries
+
+The native adapter is distinct from the HTTP Anthropic adapter. Authentication
+remains owned by the installed Claude CLI; UH does not copy credentials into
+mission artifacts.
+
+Worker execution requires a mission guard and `permission_mode: default`.
+Coordinator execution uses `role: orchestrator`, a restricted native tool set and
+strict empty MCP configuration. This does not establish isolation from inherited
+memory, settings, skills or arbitrary caller flags. A UH hook allow also does not
+grant native shell permission.
+
+Use an explicit supported model and inspect the planned command before execution.
+The current default includes a context suffix that can differ from native model
+attestation; alias compatibility remains unresolved. Saved-run recovery and
+direct session resume are mutually exclusive.
+
+Available native message counters are persisted during execution and retained
+after interruption. Missing counters remain unknown. Live usage is observational,
+not a token/context budget. See [native events](./architecture/runtime-events.md)
+and [remaining runtime work](./ROADMAP.md#runtime-reliability-and-accounting).
+
+### oh-my-pi route isolation
+
+OMP resolves helper and sub-agent models from the operator's global `modelRoles`, and
+`task.eager` can make it delegate without being asked. `--model` pins only the top-level
+session. Each UH run therefore writes `omp-overlay.yml` into the run directory and passes it
+with `--config`; an overlay outranks OMP's project and global settings per key. The overlay
+pins the `default`, `smol`, `slow`, `plan`, `task`, `commit`, `advisor`, `tiny`, `vision` and
+`designer` roles to the assigned model, sets `task.eager: default`, disables the advisor, and
+sets `task.maxRecursionDepth` to `0`, which removes the native `task` tool. A mission whose guard
+sets `allow_native_subagents: true` gets depth `1` on the same pinned roles. Custom role names in
+the operator's settings are not known to UH; delegated-route attestation is the backstop for
+those. Behavior verified against oh-my-pi source at commit `3ed46dc`
+(`config/settings.ts` merge precedence, `task/types.ts` `canSpawnAtDepth`).
 
 ## Adapter Contracts
 
@@ -22,3 +66,278 @@ All adapters should:
 - Support `dry-run` where possible so CI and reviewers can inspect command shape safely.
 
 See [`architecture/runtime-adapter-contract.md`](./architecture/runtime-adapter-contract.md) for the detailed protocol.
+
+## Canonical Team Artifacts
+
+`mission run-team` keeps execution worktrees separate from durable facts:
+
+- Parent state and result: `.harness/missions/<mission>/runs/<parent-run>/team-state.json` and `runtime-result.yaml`.
+- Worker artifact roots: `.harness/missions/<mission>/team/artifacts/<parent-run>/workers/<worker>/`. Each contains the adapter's normal `.harness/missions/<mission>/runs/<worker-run>/` artifacts, and `<artifact_scope>/.harness/missions/<id>/mission.yaml` is the exact derived packet the worker received.
+- Leader verification: copied to the parent run's `verification.yaml` before successful worktree cleanup. The selected parent also updates the existing mission mirrors and run index.
+
+In `team-state.json`, each entry in `workers[]` includes canonical execution state and worker contract tracking:
+
+- `contract`: the resolved worker contract containing `objective`, `runtime_config_overrides`, `limits` (without `memory_mb`), `expected_outputs`, `constraints`, and `seed`. When a worker specifies `mission_id`, its contract and runtime packet are resolved from `.harness/missions/<mission_id>/mission.yaml` rather than inheriting the parent mission packet.
+- `outputs`: an array of output verification records (`path`, `status` of `"passed"` or `"failed"`, and optional `notes`) produced when the worker specifies `expected_outputs.files`.
+- `blocked_reason`: explanation recorded when a worker settles as `blocked`, such as a declared output verification failure (`Declared output <path>: ...`) or an admission refusal.
+- `salvage`: recorded only for a worker that settles as `failed` with a recoverable stop code (`turn_limit`, `timeout`, `deadline`, `stall`, or `policy`). It carries `eligible` (the worktree held changes outside the protected roots), `outputs_passed` and `checks_passed` (the worker's declared outputs and its `verification.required_checks` were both re-run in the worker worktree through the same verifier the leader uses), and the worker `branch`. The worktree is committed to that branch with the existing hygiene rules only when both passed; the leader never merges a failed worker automatically, and a `policy` stop always requires a human. Workers that failed for any other reason (`route_mismatch`, `route_unverified`, `runtime_error`, `cancelled`, blocked) are not evaluated. Salvage never changes the team status: a team with a failed worker is still not passed. The integration report lists eligible stopped workers under a `Verified work from stopped workers` section with their stop code and branch.
+
+During worker dispatch, the harness writes the derived packet to the worker worktree and to `<artifact_scope>/.harness/missions/<id>/mission.yaml`. When the worker runner returns, the worktree copy is restored to the canonical parent bytes before git commit, ensuring worker branches never commit derived packet mutations while `<artifact_scope>/.harness/missions/<id>/mission.yaml` preserves the exact derived packet the worker received.
+
+Custom `TeamRuntimeRunner` implementations receive a fourth context argument containing `artifactRoot` and `runId`. Forward these to the adapter while keeping execution in the supplied worker root. Concurrent workers must not share the host mission's latest pointer.
+
+The existing Observatory reads these canonical facts during and after execution. Complete, consistent worker reports supply aggregate route and usage values; missing measurements remain unknown. `--retain` controls worktrees, not canonical fact retention. The leader merges changes and invokes verification; it does not perform a separate model synthesis run.
+
+### Distinct Worker Missions (`mission_id`)
+
+Team workers can declare an optional `mission_id`. When set, the harness loads `.harness/missions/<mission_id>/mission.yaml` as the worker's base contract:
+
+```yaml
+team:
+  workers:
+    - role: reviewer
+      adapter: oh-my-pi
+      mission_id: review-worker-mission
+```
+
+The worker receives its own `objective`, `expected_outputs`, and `constraints`, and its worktree packet is seeded with that mission specification. Worker-level overrides (such as `runtime_config_overrides` or `limits`) merge on top of the resolved worker mission. When `mission_id` is omitted, workers inherit the parent mission contract as before.
+
+## TypeSafe System One (JEV) Semantic Evaluation
+
+When `TYPESAFE_API_KEY` is present, verification and independent-review collection
+can request a typed three-verdict/tamper judgment from `jev-latest`.
+
+- Requests contain compact check/criterion dispositions, descriptions, severities
+  and review evidence states—not full mission packets, diffs or raw output.
+- Confidence is a provider-reported value, not an independently calibrated
+  correctness probability. A confidence threshold is not currently enforced.
+- A semantic pass cannot override deterministic failure. A remediation or tamper
+  recommendation can harden the consumer's disposition.
+- The controller persists a decision receipt and event, including disabled,
+  unavailable or malformed outcomes, without raw provider responses.
+- Missing credentials preserve native verification. Provider timeout policy,
+  complete response-envelope validation and privacy filtering for arbitrary
+  criterion descriptions remain unresolved.
+
+This is not semantic runtime routing, scope approval or retry authorization.
+See [progressive decisions](./architecture/progressive-decisions.md) and the
+[roadmap](./ROADMAP.md#governed-decisions).
+
+## Team Resource Admission
+
+Team workers run in resource-admitted waves. Before each wave, the harness checks the configured parallel limit and, when a memory cap is present, current available memory after the reserved amount. It then limits the wave to the remaining cost reservations when both cost fields are configured.
+
+| Resource field | Admission behavior |
+| --- | --- |
+| `max_parallel` | Caps workers admitted to a wave. Defaults to `4`. |
+| `worker_memory_mb` | Caps concurrency using available memory. A memory cap requires the native Windows runner. |
+| `reserve_memory_mb` | Subtracted from available memory before calculating concurrency. Defaults to `1024` MB. |
+| `max_cost_usd` | Upper bound used to calculate remaining admission reservations. |
+| `worker_cost_reservation_usd` | Per-worker reservation used with `max_cost_usd`. Both cost fields are required together. |
+
+The harness re-admits a wave only after every worker admitted to the prior wave settles. If memory admission cannot launch one worker, or remaining cost cannot reserve one worker, the remaining workers are marked `blocked` and the team records `admission_blocked_reason`. A team with that reason remains `blocked` in its final status.
+
+Unknown or invalid completed cost, including unavailable accounting, blocks further paid admission. It is never treated as zero. A worker that was never invoked contributes nothing because no runner ran for it. Cost admission is a reservation control, not a provider charge cap. An in-flight worker can exceed its reservation, so this is not a guaranteed spending ceiling.
+
+When `worker_memory_mb` is set, execution refuses to proceed unless the process is on Windows and every worker uses the native `oh-my-pi` or `command-code` runner.
+
+## Runtime Supervision and Recovery
+
+The harness supervises individual mission attempts through `RuntimeSupervision`, enforcing runtime limits, tool hook denial budgets, repeated command failure thresholds, and protected-path safety independent of model compliance. When a limit is reached or a safety rule is violated, the supervisor halts execution and writes a control receipt to `.harness/missions/<mission>/runs/<run_id>/runtime-control.json` recording `status`, `stop_code`, and `stop_reason`.
+
+Denial accounting has two native forms. The supervisor counts hook events (`tool_hook_blocked`, `tool_call_blocked`, and `tool_denied`) and completed tool results whose recursively inspected `result`, `text`, or `content` contains a string beginning with `CONTRACT:`. A call ID is counted once even when the same result is observed again. The oh-my-pi extension normally reaches this path through a `tool_execution_end` error result; Command Code normally emits the hook events. See [Native Runtime Events](./architecture/runtime-events.md) for the runtime-specific shapes.
+For guarded Command Code calls, a completed tool without guard-log evidence stops with `Guard hook did not run` unless a native pre-hook event was observed, in which case the reason identifies that the hook ran but could not log.
+### Stop Codes
+| Stop code | Trigger | Resumable |
+| --- | --- | --- |
+| `startup` | Wall time exceeds `startup_timeout_ms` before the runtime shows readiness: a tool starts or the model responds. A session banner alone is not readiness. | Yes |
+| `stall` | Time since last progress event exceeds `stall_timeout_ms` while no tool is in flight (`inflight.size === 0`), or an uninterrupted reasoning stretch reaches `max_thinking_ms` (defaulting to `4 * stall_timeout_ms`). | Yes |
+| `timeout` | Attempt wall time exceeds `timeout_ms`. | Yes |
+| `deadline` | A configured `recovery.on_deadline` grace window begins before `timeout_ms` or `max_turns` is exhausted; the stop reason reports the budget remaining for the grace attempt. The same code is used if the bounded grace attempt itself exceeds its grace budget. | One grace attempt only |
+| `repeated_failure` | The identical shell command fails `max_repeated_failures` times (non-zero exit code or error result). | Yes |
+| `denial_budget` | Hook events are observed, or completed tool results carry `CONTRACT:` reasons, until the denial count reaches `max_denials`. | Yes |
+| `turn_limit` | The attempt reaches or exceeds `max_turns` during turn evaluation (`turn_start` or `turn_end`), or the runtime's own native turn cap ends the run: a terminal `result` event with `stopReason: "max_turns"` settles as `turn_limit`, with the stop reason naming the native cap and the turn count. | No |
+| `output_limit` | Output size exceeds `max_output_bytes`. | No |
+| `policy` | A write-class tool or shell mutation verb attempts to modify a protected root. | No |
+| `route_mismatch` | Runtime reports a provider or model route outside the expected assignment, at the top level or for a delegated sub-agent reported in native tool metadata. | No |
+| `route_unverified` | Runtime completes without attesting the configured provider or model route. | No |
+| `cancelled` | The attempt was cancelled by operator request (`uh mission cancel`, `SIGINT`, or `SIGTERM`). | No |
+| `runtime_error` | The runtime adapter terminates abnormally or encounters an unhandled runtime failure. A native terminal stop whose reason is not a recognized budget cap settles here, and the native reason is always copied into `stop_reason` (never empty). | No |
+| `controller_error` | The harness controller encounters an internal execution error. | No |
+| `controller_lost` | The controller or launcher process terminates unexpectedly before settlement. Requires explicit manual resume via `resume_from_run` (which reconciles settlement first); not automatically resumed in the recovery loop. | Manual only |
+
+### Completion and exit-code rule
+Completion requires clean native terminal facts and the runtime final-message sentinel. `nativeRuntimeCompleted` requires a native terminal event with no native terminal failure, supervision stop, cancellation, timeout, spawn error, or recorded errors, plus a non-empty final message. A launcher exit code alone does not prove completion.
+
+When a run has a completed native terminal event and a valid sentinel, a later non-zero launcher exit does not overturn the passed native result. The result records the code and sets `exit_code_ignored_reason` to `runtime exited non-zero after completed native terminal event`. A non-zero exit before clean native completion remains a failure; an exit-zero run without a native terminal event or parseable final sentinel is not passed.
+
+The native terminal event is runtime-specific: oh-my-pi emits `agent_end`; Command Code emits `run_end` and `result`. See [Native Runtime Events](./architecture/runtime-events.md).
+
+### Native turn and time caps
+
+Mission `limits.max_turns` and `limits.timeout_ms` are enforced by UH supervision for every runtime. Some runtimes also impose their own native caps; where a native flag exists it must be reachable from the mission's `limits`, and where a native default applies silently it must be recorded in the plan. Audit as of the turn-cap fix:
+
+| Runtime | Native turn cap | Mission `limits.max_turns` reaches it | Native default recording | Native time cap | Native terminal stop mapping |
+| --- | --- | --- | --- | --- | --- |
+| `command-code` | `--max-turns` flag; print mode caps at 100 turns by default (exit 8) | Yes — precedence: explicit top-level `max_turns`, else `limits.max_turns`, else no flag | `native_default_turn_cap: 100` recorded on the plan (visible in dry-run) when neither field is configured | none — no native flag; `limits.timeout_ms` is UH-supervised | `stopReason: "max_turns"` → `turn_limit`; `max_time`/`timeout` → `timeout`; any other failing native stop → `runtime_error` with the native reason copied into `stop_reason` |
+| `claude-code` | `--max-turns` flag; no cap when the flag is absent | Yes — same precedence as command-code | n/a (no native default cap) | none — UH-supervised | failing native stops → `runtime_error` with the native reason copied |
+| `oh-my-pi` | none | enforced by UH supervision (`turn_start`/`turn_end`) | n/a | none — UH-supervised | `error`/`aborted` → `runtime_error` with the reason copied |
+| `codex` | none | enforced by UH supervision | n/a | none — UH-supervised | failing native stops → `runtime_error` with the reason copied |
+| `hermes` | none | enforced by UH supervision | n/a | none — UH-supervised | — |
+| `hermes-proxy` | none | enforced by UH supervision | n/a | `request_timeout_ms` per HTTP request (adapter config, not `limits`) | — |
+| `openrouter` | none | enforced by UH supervision | n/a | `request_timeout_ms` per HTTP request (adapter config, not `limits`) | — |
+| `anthropic` | none | enforced by UH supervision | n/a | `request_timeout_ms` per HTTP request (adapter config, not `limits`); `max_tokens` is a per-response output cap configured via `runtime_config.max_tokens` | — |
+| `pi` | none | enforced by UH supervision | n/a | none — UH-supervised | — |
+| `acp` | none set by UH; an ACP agent may stop itself with `max_turn_requests` | UH supervision; the agent's own cap is not configurable from `limits` | n/a | `timeout_ms` per request (adapter config, not `limits`) | `max_tokens`/`max_turn_requests` → `blocked`; `refusal` → failed; `cancelled` → cancelled |
+
+
+### Recovery Policy
+
+Bounded session recovery allows transiently halted attempts to continue from their saved native session transcript. The recovery policy is defined by `RuntimeRecoveryPolicySchema`:
+
+- `recovery.max_resumes`: Non-negative integer specifying the maximum number of automatic resume attempts permitted (for example, `max_resumes: 2`). When `0`, recovery is disabled.
+- `recovery.on_deadline` (optional): `{ grace_turns, grace_timeout_ms, notes }` enables deadline delivery. `grace_turns` defaults to `3` and `grace_timeout_ms` to `300000`; the optional notes are prepended to the mandatory delivery instruction.
+- `recovery.notes`: Non-empty string providing guidance instructions injected into the resumed session prompt (for example, `notes: "Inspect existing outputs before continuing."`).
+
+Recovery policies are declared under `recovery` in `runtime_config` within an adapter manifest (`.harness/adapters/<runtime>.yaml`) or overridden per mission via `runtime_config_overrides.recovery` in `mission.yaml` (or via the `--runtime-config-overrides` CLI flag). Bounded native session recovery is supported for the `oh-my-pi` and `command-code` runtimes.
+Attempts that halt with `startup`, `stall`, `timeout`, `repeated_failure`, or `denial_budget` are automatically resumed by `runWithRuntimeRecovery` if the previous attempt recorded a native `session_id` and the resume count has not reached `recovery.max_resumes`. When `on_deadline` is configured, `timeout` and `max_turns` are converted into one `deadline` stop at the grace boundary and resumed exactly once regardless of `max_resumes`; that grace attempt is never resumed. Stops caused by `policy`, `route_mismatch`, or `route_unverified` represent hard violations and are explicitly refused by `prepareRuntimeResume`.
+
+### Resume Note Composition and Recovery Records
+
+When resuming an attempt, `prepareRuntimeResume` composes a single recovery note that combines the configured recovery notes with the specific stoppage cause:
+
+```text
+<notes>
+You were stopped: <stop_reason>. Do not repeat that action. Inspect existing outputs before continuing.
+```
+
+where `<stop_reason>` is `control.stop_reason ?? control.stop_code`.
+
+The resumed attempt receives a synthetic prompt section formatted by `recoveryPrompt`:
+
+```markdown
+## Recovery of prior attempt <source_run_id>
+Continue the saved native session. Inspect existing outputs and prior tool results; do not repeat completed work.
+<combined_notes>
+For a `deadline` stop, the grace prompt instead appends the configured `on_deadline.notes` (when present) followed by: `Your time budget is exhausted. Write your deliverable now with everything you have found so far. Mark it clearly as INCOMPLETE at the top, and end it with a section titled "Missing for the next step" listing what you did not get to and where you stopped. Do not start new investigation. Then stop.` The grace result records `completion: "incomplete"` and `incomplete_reason`; if its own grace budget is exceeded, the run remains failed and is not resumed.
+```
+
+Each resumed attempt generates a new run ID and persists a recovery record at `.harness/missions/<mission>/runs/<run_id>/runtime-recovery.json` conforming to `RuntimeRecoveryRecordSchema`:
+
+- `schema_version`: Exactly `uh.runtime-recovery.v0`.
+- `source_run_id`: Run ID of the halted attempt being resumed.
+- `session_id`: Native session identifier preserved from the prior attempt.
+- `notes`: The combined resume notes string.
+- `source_stop_code`: Optional `RuntimeStopCode` from the prior attempt's control receipt.
+- `grace`: Boolean identifying the one deadline-delivery attempt; ordinary recovery records are `false`.
+- `source_stop_reason`: Optional string recording the prior attempt's stop reason.
+
+### Protected-Path Rule
+
+The supervisor monitors tool calls to prevent accidental or unauthorized modification of harness configuration, adapter metadata, and repository control state. It evaluates a protected path on the first tool event observed for each call ID, rather than assuming that every runtime emits the same queue event:
+- **Hard policy stop**: When a mutation target lies under any protected root, the supervisor halts the run on that call's first tool event (`tool_queued`, `tool_execution_start`, or `tool_running`) with `stop_code: "policy"` and `stop_reason: "Protected path write attempted: <target>"`. Policy stops are final and cannot be resumed automatically or manually.
+
+- **Default protected roots**: Defined by `DEFAULT_PROTECTED_PATHS` as `[".harness", ".commandcode", ".omp", ".pi", ".git"]`. Missions or worker contracts can override this list via `limits.protected_paths` with an array of non-empty relative path strings.
+- **Write-class tools**: The supervisor intercepts calls to write-class tools: `write_file`, `edit_file`, `write`, `edit`, `multi_edit`, `create_file`, `apply_patch`, `delete_file`, `remove`, and `move_file`.
+- **Shell-class tools**: The supervisor monitors commands executed via shell tools: `bash`, `shell`, `run_command`, `powershell`, and `cmd`.
+- **Mutation verbs**: Shell commands are tokenized to identify mutation verbs: `rm`, `del`, `rmdir`, `mv`, `move`, `cp`, `copy`, `tee`, `sed`, `set-content`, `out-file`, `add-content`, `remove-item`, `move-item`, `copy-item`, and `new-item`.
+- **Redirection operators**: Targets following `>` and `>>` shell redirection operators are extracted as mutation targets.
+- **Path resolution and normalization**: Candidate paths are normalized by converting backslashes to forward slashes, stripping enclosing quotes, resolving relative segments (`.` and `..`), and lowercasing. An absolute path that lies inside the working directory is compared relative to it; an absolute path outside the working directory is not a protected-root match.
+- **Reads never stop**: Read-class tools (such as `read_file`, `read`, or `view`) and non-mutating shell commands (such as `cat`, `grep`, or `ls`) are never intercepted or stopped.
+- **File content is never inspected**: The supervisor validates only target paths against protected roots. File contents, diff bodies, and replacement texts are never inspected.
+
+### Stall and Turn Rules
+
+- **Reasoning rule:** `thinking_delta`, `thinking_start`, `thinking_end`, and native `message_update` thinking events count as liveness. Reasoning is tracked as an uninterrupted stretch until a tool event, turn boundary, or message end; `max_thinking_ms` bounds that stretch, and defaults to four times `stall_timeout_ms`. Once the stretch has seen 4,096 characters, a repeated 64-character window occurring in more than 30% of the bounded 16,384-character sample makes it non-live, so it no longer refreshes the stall clock. Reasoning text is never persisted or logged. Text deltas remain non-progress.
+- **Turn limit rule**: When `max_turns` is configured, turn counts are evaluated at `turn_start` (`turns >= max_turns`) and `turn_end` (`turns > max_turns`). Exceeding the turn limit halts the run with `stop_code: "turn_limit"`.
+
+## Native OMP Interruption
+
+For a running native OMP mission, the CLI handles `SIGINT` and `SIGTERM`, cancels the owned runtime process tree, and synchronously settles the selected run before exiting with code `143`. Windows cleanup targets the owned PID tree; POSIX cleanup targets the owned process group.
+
+The runtime result, run index, latest pointer, and terminal event report `cancelled`. The existing session schema has no `cancelled` state: its terminal representation is `failed` with exit code `143` and a finish timestamp. Mission mirrors update only for the selected run, and partial sandbox files remain available.
+
+An uncatchable OS force-kill cannot execute this finalization path.
+
+## Terminal Contract
+
+Hosts such as terminal multiplexers and desktop orchestrators run `uh` as an ordinary process in a managed terminal and wait on its output and exit code.
+
+### Mission Run Terminal Contract
+
+`uh mission run [file] [options]` executes a mission and reports settlement status to host environments.
+
+#### Quiet Mode (`--quiet`)
+- `--quiet`: Suppresses runtime stdout and stderr streams. All harness lifecycle messages, preflight checks, and settlement markers continue to print normally. Without `--quiet`, default behavior is unchanged.
+
+#### Settlement Line
+At the conclusion of a mission run, `uh mission run` always prints, as the **LAST line of stdout**, one machine-parseable settlement line:
+
+```
+UH_RESULT <single-line-json>
+```
+
+The payload is a JSON object with the following fields:
+- `mission_id` (string): The identifier of the mission.
+- `run_id` (string): The specific run identifier.
+- `runtime` (string): The active runtime adapter id.
+- `status` (string): Outcome status (`passed`, `failed`, `blocked`, or `cancelled`).
+- `stop_code` (string, optional): The stop code (e.g., `timeout`, `turn_limit`, `policy`), omitted when none.
+- `exit_code` (number): The process exit code for the run.
+- `run_dir` (string): Forward-slash relative path to the run directory from the project root (e.g. `.harness/missions/<mission_id>/runs/<run_id>`). Never contains absolute paths.
+
+#### Exit Codes
+`uh mission run` maps settlement outcomes to deterministic exit codes via `exitCodeForRun(status, stopCode)`:
+- `0` (`passed`): Mission run succeeded.
+- `1` (`failed`): Mission run failed or encountered an unhandled failure.
+- `2` (`blocked`): Mission run was blocked, including preflight checks, auto-route refusals, missing-sandbox refusals, and fleet budget limits that print `[BLOCKED]`.
+- `130` (`cancelled`): Mission run was cancelled by the harness or via cancellation request.
+- `143`: Reserved for `SIGINT`/`SIGTERM` process termination.
+
+#### Sandbox Routing
+
+Every mission run and dry-run prints one `Sandbox:` line naming where execution goes, so the routing decision is visible before anything is spawned or spent:
+
+- Bound sandbox: `Sandbox: <sandbox-id> (<worktree path>)`.
+- `--no-sandbox`: `Sandbox: none (project root, --no-sandbox)`.
+
+`uh mission run` refuses to fall back to the project root silently. When sandbox routing was requested (that is, `--no-sandbox` was absent) and the mission has no bound sandbox, it exits before creating a run directory or spawning a process:
+
+```
+[BLOCKED] mission <id> has no bound sandbox; create one with "uh sandbox create <sandbox-id> --mission <id>" or pass --no-sandbox to run in the project root
+```
+
+Exit code is `2` (`blocked`) and the settlement line is still the last stdout line, with `status: "blocked"`, the `run_id` that would have been used, and the `run_dir` that was deliberately not created. Root execution is only reachable through an explicit `--no-sandbox`, because a guarded worker running in the project root edits the operator's live working tree.
+
+`uh mission dry-run` prints the same `Sandbox:` line and never blocks on a missing binding — it shows `Sandbox: none (project root)` and continues. `uh mission run-all` and `uh mission run-team` are unaffected: they create and clean up their own worktrees instead of using sandbox routing, and `uh acceptance run` passes `--no-sandbox` because each campaign creates its own isolated workspace.
+
+### Observatory Subcommands
+
+#### `uh observatory runs`
+Inspect indexed run history or compute performance summaries across run groups:
+
+```bash
+uh observatory runs [--mission <id>] [--group-by runtime|model|workflow_profile|stop_code] [--json]
+```
+
+- **Without `--group-by`**: Lists run records from `indexRuns`.
+  - Human output: A plain aligned table of runs showing `MISSION_ID`, `RUN_ID`, `RUNTIME`, `MODEL`, `WORKFLOW_PROFILE`, `STATUS`, `STOP_CODE`, `DURATION`, and `COST`.
+  - `--json`: Prints raw `RunRecord[]` array.
+  - Unknown/undefined metrics always render as `unknown`, never as `0` or `$0`.
+- **With `--group-by <dimension>`**: Aggregates runs with `summarizeRuns` across `runtime`, `model`, `workflow_profile`, or `stop_code`, identifying groups on the `paretoFrontier`.
+  - Human output: An aligned table displaying group summaries with a `PARETO` column marking frontier groups (`yes`/`no`).
+  - `--json`: Prints raw structures: `{ summaries, pareto_frontier }`.
+  - Missing values render as `unknown`, never as `0`.
+
+#### `uh observatory export`
+Export a mission run's distributed trace in OpenTelemetry (OTLP) format using `exportRunToOtlp`:
+
+```bash
+uh observatory export <mission-id> --otlp [--run-id <id>] [--out <file>] [--include-tool-targets]
+```
+
+- `<mission-id>`: Target mission identifier.
+- `--otlp`: Mandatory flag specifying OTLP trace export format.
+- `--run-id <id>`: Specific run to export; defaults to the mission's latest run when omitted.
+- `--out <file>`: Writes the JSON trace to the given file, which must resolve strictly inside the project root. When omitted, trace JSON outputs directly to `stdout`.
+- `--include-tool-targets`: Includes target paths/commands in tool execution spans.
diff --git a/docs/tool-guard.md b/docs/tool-guard.md
new file mode 100644
index 0000000..14cf07b
--- /dev/null
+++ b/docs/tool-guard.md
@@ -0,0 +1,94 @@
+# Tool Guard
+
+The tool guard is a per-tool-call contract boundary. It is path-only and content-blind: it classifies the requested tool and command, resolves target paths, and compares those paths with the configured write roots and protected roots. It does not inspect file contents, diff bodies, replacement text, or report text. Shell command text is parsed only to identify commands, arguments, redirections, wrappers, and target paths; this is not content matching.
+
+A denial reason names a permitted substitute action where one exists. The runtime appends its own blocked-by-hook text in some integrations; the guard's reason itself ends with the following instruction:
+
+> Do not retry this by another route; record it in your final message and continue with the rest of the task.
+
+## Policy fields and defaults
+
+The input `guard` block accepts these fields. Unknown fields are rejected by the strict schema.
+
+| Field | Meaning | Resolved default |
+|---|---|---|
+| `write_roots` | Relative or absolute roots where write and delete targets are allowed. | `["."]` |
+| `deny_git_mutations` | Deny shell commands that mutate Git state. | `true` |
+| `deny_package_installs` | Deny package-manager install or add commands. | `true` |
+| `deny_network_clients` | Deny network clients. Agent-client denial does not depend on this field. | `true`, unless `runtime_requirements.needs_network` is true and the field is not explicitly set |
+| `agent_clients` | Executable names treated as agent clients. Always enforced, including when `needs_network` lifts network denial. An explicit empty list is the only opt-out. | `["omp", "cmdc", "codex", "pi", "hermes", "aider", "gemini", "claude", "opencode", "qwen", "goose", "cursor-agent"]` |
+| `allow_native_subagents` | Lets the runtime use its own sub-agent tool (`task`, `agent`, ...). Agent CLIs and UH runs stay denied. Every delegated agent is still held to the assigned route: a different provider or model stops the run with `route_mismatch`. | `false` |
+
+The mission and each `team.workers[]` entry may declare `guard`. The mission schema resolves a mission guard through `resolveToolGuardPolicy`; a worker guard is accepted as the worker's per-worker input contract. The default protected roots are separate from `write_roots`: `[".harness", ".commandcode", ".omp", ".pi", ".git"]`. Runtime limits may supply an effective `protected_paths` list for supervisor evaluation; the run artifact records that list.
+
+When `needs_network: true`, the resolver changes the default only for `deny_network_clients`; the other defaults remain unchanged. An explicit `guard.deny_network_clients` value takes precedence.
+
+## Denial classes and exact reason text
+
+Every reason below includes the common suffix quoted above. The `<roots>`, `<target>`, and `<path>` values are substituted by the decision function where shown.
+
+| Class | Trigger | Exact guard reason |
+|---|---|---|
+| `write_outside` | A write-class tool or shell write target is outside `write_roots`. | `CONTRACT: write only under <roots>. Put the file under <first write root> instead. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `git_mutation` | A shell command contains a Git mutation verb such as `commit`, `checkout`, `stash`, `reset`, `add`, `merge`, `rebase`, `push`, `switch`, `restore`, or `clean`, when enabled. | `CONTRACT: no git mutations; the harness commits for you. Use read-only git (status, diff, log) or skip it. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `delete_outside` | A direct delete tool or shell delete targets outside `write_roots`, or a delete target cannot be resolved. | `CONTRACT: deletes and process kills only inside <roots>. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `kill_or_format` | The shell command contains `taskkill`, `stop-process`, `kill -9`, or `format <drive>:`. | `CONTRACT: deletes and process kills only inside <roots>. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `package_install` | A shell command invokes `pip`, `pip3`, `uv`, `conda`, `npm`, `pnpm`, or `yarn` with `install`, `add`, or `i`, when enabled. | `CONTRACT: no package installs. Use what is installed; if a dependency is missing, end with BLOCKED: <dependency>. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `network_client` | A shell command invokes `curl`, `wget`, `invoke-webrequest`, `iwr`, `invoke-restmethod`, or `irm`, when network denial is enabled. | `CONTRACT: no network or agent clients. Everything you need is on disk; if it is not, end with BLOCKED: <what is missing>. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `agent_client` | A shell command would start one of the configured `agent_clients`, or a UH command that starts paid runtimes (`uh mission run`, `run-all`, `run-team`, `uh acceptance run`, or the same through `node`/`bun` and `dist/cli.js`). Executable positions are judged: segment heads, launcher targets (`npx`, `bunx`, `pnpm dlx`, `env`, `xargs`, `&`), nested shell bodies and command substitutions, with `.exe`/`.cmd`/`.bat`/`.ps1` and directory prefixes ignored. A client name used as an argument, search pattern or path is not an invocation The native sub-agent tools `task`, `agent`, `subagent`, `spawn_agent`, `dispatch_agent` and `delegate` are denied by tool name for every role. | `CONTRACT: no sub-agents. Workers do not start agents, agent CLIs or harness runs. Do the work yourself; if part of it exceeds your scope, end with ESCALATE: <what your orchestrator should delegate>. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `guard_tamper` | A write, delete, copy, move, or redirection targets the configured guard policy or log, or an absolute target contains a `.harness`, `.commandcode`, `.omp`, or `.pi` path segment. | `CONTRACT: the harness policy and its state are not yours to change. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `protected_root` | A write-class tool or shell mutation targets a protected root. | `CONTRACT: <protected root> belongs to the harness and is read-only. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+| `containment_escape` | A shell command would launch a process outside the supervised Windows Job Object or POSIX process group: `wmic process call create`; `Invoke-CimMethod` or `Invoke-WmiMethod` naming `Win32_Process` and `Create`; the `[wmiclass] Win32_Process` `Create` form; `schtasks /create` or `/run`, `Register-ScheduledTask`, `Start-ScheduledTask`; `sc`/`sc.exe` with `create` or `start`, `New-Service`, `Start-Service`; `setsid`, `systemd-run`, `disown`, `at`, `batch`, `crontab` (except `crontab -l`); or `nohup` when its segment is followed by the background operator `&`. Executable positions are judged the same way agent clients are (segment heads, launcher targets, nested shell bodies, command substitutions, `.exe`/`.cmd` suffixes ignored); a name used as an argument, search pattern or path is not an invocation. Applies to every role and every policy: no guard field lifts it. | `CONTRACT: no launches outside the supervised process tree. Run the work in the foreground of this run instead. Do not retry this by another route; record it in your final message and continue with the rest of the task.` |
+
+`guard_tamper` is checked before other mutation classes and is a hard policy stop. Otherwise the `protected_root` class is produced before the write/delete class when a target is under a protected root. Reads are not denied by the guard merely because their path is protected. Direct write-class tools include `write_file`, `edit_file`, `notebook_edit`, `multi_edit`, `write`, `edit`, `create_file`, `apply_patch`, `delete_file`, `remove`, and `move_file`. Shell tools include `bash`, `shell`, `shell_command`, `powershell`, `pwsh`, `cmd`, and `run_command` in the guard classifier.
+
+## Shell classification
+For shell tools, the guard examines each command segment split at `&&`, `||`, `|`, `;`, `&`, `{`, and `}` outside quotes. It unwraps `powershell`, `pwsh`, `cmd`, and `bash` command bodies passed with `-Command`, `-c`, `/c`, `/k`, or `-EncodedCommand` where the body can be read. It recognizes quoted tokens, literal variable assignments, and variable substitution for target resolution. A leading `cd`, `chdir`, `pushd`, `Set-Location`, `sl`, or `Push-Location` changes the effective directory for later segments; `popd` and `Pop-Location` restore it. The initial directory may also come from the tool input's `cwd`, `workdir`, or `directory` field.
+
+Write targets include destinations of `copy`, `cp`, `move`, `mv`, `xcopy`, `robocopy`, `copy-item`, and `move-item`; shell redirection targets after `>` and `>>`; and PowerShell-style `out-file`, `set-content`, `add-content`, `tee`, and `tee-object`. Delete targets include `remove-item`, `ri`, `rm`, `rmdir`, `rd`, `del`, and `erase`, including pipeline-derived targets. Null redirection targets such as `nul`, `null`, `/dev/null`, `$null`, `&1`, `&2`, `con`, and `prn` are ignored. A delete whose target cannot be resolved is denied conservatively.
+Paths are normalized before comparison. Relative paths resolve against the effective directory, which starts at `worker_root` unless the tool input supplies an explicit directory and changes as the command runs. An unresolvable directory change makes later write, delete, copy, and redirection targets unresolved and therefore denied as `write_outside`; read-only commands remain allowed. Absolute paths are normalized and compared directly. The guard compares path boundaries, so a sibling whose name merely starts with a configured root does not match. No target file needs to exist for a denial.
+
+## Runtime enforcement seams
+
+| Runtime | Enforcement | Configuration seam |
+|---|---|---|
+| `oh-my-pi` | `src/extensions/tool-guard/omp.ts` registers the `tool_call` callback. A denied decision is logged and returned as `{ block: true, reason }`. | `planOhMyPiRun` adds the extension with `-e` when `mission.guard` is present. |
+| `command-code` | `src/extensions/tool-guard/cmdc-hook.ts` reads one JSON request from stdin. A denied decision is logged and returned as a `PreToolUse` `permissionDecision: "deny"` response. | The adapter merges a command hook into `.commandcode/settings.json` under `hooks.PreToolUse`, writes `.commandcode/.gitignore` containing `*`, and passes the policy and log paths through environment variables. |
+
+Command Code runs in print mode, where no operator can answer a permission prompt. When a guard policy is present, UH resolves `permission_mode: "guard"`, appends `--yolo`, and leaves all authorization to the `PreToolUse` hook and this guard. A mission may instead set `runtime_config.permission_mode: "yolo"` explicitly; this also appends `--yolo` without installing a guard. With neither a guard nor an explicit permission mode, planning refuses before process spawn for every `cli_command`, including custom commands. The durable `runtime-control.json` receipt records `permission_mode` as `guard`, `yolo`, or explicit `prompt`.
+
+For guarded Command Code runs, the hook appends one `tool-guard.log` line for every hook invocation, including allowed calls (`class: "allow"`). The supervisor requires the first completed tool call to have matching guard-log evidence; if it does not, it stops with `stop_code: "policy"`, reason `Guard hook did not run; refusing to continue with permissions enabled`, and `guard_armed: false`. A guarded run records `guard_armed: true` once the first completed call has matching evidence.
+
+Both seams load the policy from `UH_TOOL_GUARD_POLICY` and write denials to `UH_TOOL_GUARD_LOG`. The guard is an enforcement seam, not an operating-system sandbox; an unmanaged process that bypasses the runtime event or hook seam is outside this mechanism.
+
+## Run artifacts
+
+When a guard is active, each native adapter writes both artifacts in the run directory:
+
+`.harness/missions/<mission>/runs/<run_id>/tool-guard.json` conforms to `ToolGuardArtifactSchema`:
+
+| Field | Type / value |
+|---|---|
+| `schema_version` | Literal `uh.tool-guard.v0`. |
+| `worker_root` | Non-empty string containing the runtime worktree root. |
+| `protected_paths` | Array of non-empty protected-root strings used by the run. |
+| `write_roots`, `deny_git_mutations`, `deny_package_installs`, `deny_network_clients`, `agent_clients` | The resolved `ToolGuardPolicy` fields and defaults described above. |
+
+`.harness/missions/<mission>/runs/<run_id>/tool-guard.log` is newline-delimited JSON. Each denial line has:
+
+```json
+{"ts":"<ISO timestamp>","tool":"<tool name>","class":"<ToolGuardClass>","target":"<target or tool fallback>","reason":"<exact denial reason>"}
+```
+
+The OMP and Command Code writers use the same field names and append one line per denied decision. `target` contains the resolved decision target when one exists; otherwise `toolTargetForLog` supplies the tool name as a fallback.
+
+## Denials and the runtime denial budget
+
+The supervisor does not infer a denial from arbitrary model text. It counts either a native hook-block event (`tool_hook_blocked`, `tool_call_blocked`, or `tool_denied`) or a completed tool result whose recursively inspected `result`, `text`, or `content` contains a string beginning with `CONTRACT:`. A call ID is counted once even if the same denied result is observed more than once. On each counted denial, the supervisor records the hook text and updates progress; when `max_denials` is reached, it stops with `stop_code: "denial_budget"` and a reason in the form `<count> hook-denied calls; last: <tool> <target>: <hook reason>`.
+
+A protected-root mutation is different: the supervisor evaluates the first tool event for a call and immediately stops with `stop_code: "policy"` and `Protected path write attempted: <target>`. Policy stops are hard stops and are not automatically resumed.
+A `guard_tamper` denial is a hard policy stop rather than denial-budget input: when the supervisor observes that class in the native denial event or guard log, it stops with `stop_code: "policy"` and reason `Guard tamper attempted`. Policy stops are hard stops and are not automatically resumed.
+
+## Why matching is path-only
+
+Path checks inspect the operation target, not the contents of a report. An allowed output may quote a forbidden path without attempting to write there. This prevents false denials based on documentation content; `tests/tool-guard.test.ts` covers the distinction.
diff --git a/docs/verification/audit-trail.md b/docs/verification/audit-trail.md
index 54913af..01c6253 100644
--- a/docs/verification/audit-trail.md
+++ b/docs/verification/audit-trail.md
@@ -22,7 +22,13 @@ The audit trail answers:
 
 ## Storage
 
-Project-level events belong in `.harness/audit/events.ndjson`. Mission-specific events may also be copied to `.harness/missions/<id>/events.ndjson` for local inspection.
+Audit-related records use three distinct locations:
+
+| Path | Receives |
+| --- | --- |
+| `.harness/audit/events.ndjson` | Project-level events, including the `project.init` event. |
+| `.harness/audit.log` | Text lines appended for manually recorded verdicts. |
+| `.harness/missions/<id>/events.ndjson` | Mission-scoped lifecycle events, including `promotion.recorded`. |
 
 ## Rules
 
diff --git a/docs/verification/capability-inventory.md b/docs/verification/capability-inventory.md
new file mode 100644
index 0000000..08dd392
--- /dev/null
+++ b/docs/verification/capability-inventory.md
@@ -0,0 +1,181 @@
+# Capability inventory: what UH claims, what is unit-tested, what is proven live
+
+Scope: every capability UH claims through the `uh` CLI, the `CHANGELOG.md`
+sections `[Unreleased]`, `[0.11.0]`, `[0.10.0]`, `[0.9.0]`, `[0.8.0]`,
+`[0.7.0]` and `[0.6.0]`, the `docs/ROADMAP.md` "Now" section, and
+`docs/acceptance/README.md`.
+
+Authority order: `src/cli.ts` command registrations first (one row per leaf
+command), then `CHANGELOG.md` claims (merged into a command row when they are
+the same thing), then the roadmap and acceptance registry.
+
+Class definitions (per mission):
+
+- **proven** — acceptance evidence marked `passed` at the current commit.
+- **unit-only** — at least one test file exercises the implementation with
+  fixtures, fakes or injected process state, and there is no live evidence.
+- **untested** — no test file references the implementation.
+- **unknown** — could not determine; the notes column says why.
+
+Method: `src/cli.ts` was read in full for leaf registrations. Test coverage is
+derived from the import graph under `tests/` and from CLI-subprocess test files
+(`tests/cli-*.test.ts`, `tests/sandbox.test.ts`, `tests/skill.test.ts`,
+`tests/propose.test.ts`). Live evidence was checked directly: there is no
+`acceptance/evidence/` directory in this checkout, no `.harness/missions/*/runs/`
+directory, and no `latest.json` anywhere. Every acceptance entry therefore has
+**no** live evidence, and **no row can be `proven`**. `docs/acceptance/README.md`
+reports 19 `unproven` and 1 `fixture_only` (`R10-stall`); that matches the
+registry in `acceptance/registry.yaml`.
+
+## 1. Capability table
+
+| capability | where implemented (file: exported function) | unit tests | acceptance id | live evidence | class | notes |
+|---|---|---|---|---|---|---|
+| `uh init` | src/cli.ts: `init` action; src/harness/init.ts: `initializeHarness` | tests/init.test.ts; tests/cli-smoke.test.ts | none | none | unit-only | cli-smoke spawns the real CLI against a temp project. |
+| `uh validate` (file / --all-workflows / --all-missions) | src/harness/validate.ts: `validateFile`, `validateAllWorkflows`, `validateAllMissions` | tests/validate.test.ts; tests/cli-smoke.test.ts | none | none | unit-only | Fixture YAML only. |
+| `uh validate --repair` drift detection | src/harness/validate/drift/registry.ts: `runDrift`, `groupByKind`, `DRIFT_KINDS` | tests/validate-drift.test.ts; tests/validate-drift-spec-stale.test.ts | none | none | unit-only | Each drift kind is a pure function over fixture files. |
+| `uh validate --judge` spec-adherence judge | src/harness/spec-judge.ts: `judgeSpecAdherence`, `oneShotOpenAI`; src/harness/spec-loader.ts: `loadSpecFile` | tests/spec-judge.test.ts | none | none | unit-only | The model runner is injected; no live hermes-proxy call is made. |
+| `uh status` | src/harness/status.ts: `getStatus` | tests/status.test.ts | none | none | unit-only | Reads fixture `.harness/` state. |
+| `uh status --json` | src/harness/status-json.ts: `getStatusJson`, `STATUS_JSON_SCHEMA` | tests/status-json.test.ts; tests/cli-smoke.test.ts | none | none | unit-only | cli-smoke asserts `schema_version: uh.status.v0`. |
+| `uh acceptance run` | src/harness/acceptance.ts: `runAcceptance` | tests/acceptance.test.ts | none | none | unit-only | `runAcceptance` is tested through fixture seams only; no registered capability has ever executed live (docs/acceptance/README.md: all unproven). |
+| `uh acceptance status` | src/harness/acceptance.ts: `acceptanceStatus`, `classifyAcceptance` | tests/acceptance.test.ts | none | none | unit-only | Classification logic tested; no evidence files exist to classify. |
+| `uh acceptance report` | src/harness/acceptance.ts: `writeAcceptanceReport`, `renderAcceptanceReport` | tests/acceptance.test.ts | none | none | unit-only | Rendering tested; the generated docs/acceptance/README.md is the product. |
+| `uh observatory snapshot --json` | src/harness/delivery-observatory/project.ts: `projectDeliveryObservatory` | tests/delivery-observatory.test.ts; tests/runtime-events.test.ts | none | none | unit-only | Reads fixture run artifacts. |
+| `uh observatory runs` (+ `--group-by`) | src/harness/experience-store.ts: `indexRuns`, `summarizeRuns`, `paretoFrontier` | tests/experience-store.test.ts; tests/cli-observatory.test.ts | none | none | unit-only | CLI test feeds synthetic run directories. |
+| `uh observatory compare` | src/harness/run-comparison.ts: `compareArms`, `attemptsToMatch`, `bestOfN` | tests/run-comparison.test.ts; tests/cli-observatory.test.ts | none | none | unit-only | Wilson-interval math over fixture runs; no real run set compared. |
+| `uh observatory export --otlp` | src/harness/otel-export.ts: `exportRunToOtlp` | tests/otel-export.test.ts; tests/cli-observatory.test.ts | none | none | unit-only | Converts a fixture run directory; no trace ever shipped to a collector. |
+| `uh verify` | src/harness/verify.ts: `verifyMission` | tests/verify.test.ts; tests/independent-review.test.ts; tests/team-run.test.ts | none | none | unit-only | Checks run real shell commands in a temp tree, but no mission was ever verified live. |
+| `uh promote` | src/harness/promote.ts: `promoteMission` | tests/promote.test.ts | none | none | unit-only | Fixture verification.yaml; no promoted mission in this repo. |
+| `uh propose` | src/harness/propose.ts: `proposeMission` | tests/propose.test.ts | none | none | unit-only | propose.test.ts spawns the real CLI and validates the written mission. |
+| `uh propose --from` spec bootstrap | src/harness/propose.ts: `proposeMissionFromSpec`; src/harness/spec-loader.ts | tests/spec-loader.test.ts | none | none | unit-only | Fixture `.spec.md` inputs. |
+| `uh spec scaffold` | src/harness/test-scaffold.ts: `scaffoldTestsFromSpec`, `parseScaffoldLang` | tests/spec-scaffold.test.ts | none | none | unit-only | Writes Vitest `it.todo` stubs; scaffolding only. |
+| `uh spec template` | src/harness/spec-templates.ts: `getSpecTemplate`, `listSpecTemplates` | tests/spec-templates.test.ts | none | none | unit-only | Pure string output. |
+| `uh adapter list` | src/harness/registry.ts: `runtimeRegistry.list` | tests/registry.test.ts; tests/adapter.test.ts | none | none | unit-only | Fixture manifests. |
+| `uh adapter check` | src/harness/registry.ts: `runtimeRegistry.check` | tests/registry.test.ts | none | none | unit-only | Checker behaviour tested with injected checkers; real `hermes`/`codex` binaries are not proven. |
+| `uh adapter add` | src/harness/adapter-add.ts: `addAdapter`, `listAdapterTemplates` | tests/cli-template.test.ts; tests/claude-code.test.ts; tests/acp.test.ts | none | none | unit-only | Writes the built-in manifest template. |
+| `uh adapter capabilities` | src/adapters/capabilities/index.ts: `CAPABILITIES`, `listAdapterIds` | tests/adapter-capabilities.test.ts; tests/cli-smoke.test.ts | none | none | unit-only | Static capability table. |
+| `uh adapter capabilities --probe` | src/adapters/capabilities/hermes-proxy-probe.ts: `probeHermesProxyCapabilities` | tests/hermes-proxy-probe.test.ts | none | none | unit-only | Fetch is stubbed; no live `/capabilities` endpoint is hit. |
+| `uh adapter cost-forecast` | src/harness/cost-forecast.ts: `forecastCost`, `costUsd`, `readUsageHistory`; src/harness/cost-table.ts | tests/cost-forecast.test.ts | none | none | unit-only | Heuristic fallback over fixture usage history. |
+| `uh mission review-prepare` | src/harness/independent-review.ts: `prepareIndependentReview` | tests/independent-review.test.ts | none | none | unit-only | Builds the review packet; no reviewer runtime is launched. |
+| `uh mission review-collect` | src/harness/independent-review.ts: `collectIndependentReview`, `validateIndependentReviewReport` | tests/independent-review.test.ts | none | none | unit-only | Hash-bound report validation over fixtures. |
+| `uh mission create` | src/harness/mission.ts: `createMission` | tests/mission.test.ts | none | none | unit-only | Writes a scaffold mission packet. |
+| `uh mission new` (+ `--design`) | src/harness/mission.ts: `createMission` (`withDesign`) | tests/mission-design.test.ts | none | none | unit-only | design.md backfill is asserted against the written file. |
+| `uh mission show` | src/cli.ts: `mission show` action (inline `loadMissionFile` + design.md readback) | none | none | none | untested | No test invokes `mission show`. `loadMissionFile` is exercised elsewhere, but the command's own formatting and design.md readback are uncovered. |
+| `uh mission verdict` | src/harness/verdict.ts: `recordManualVerdict` | tests/verdict.test.ts | none | none | unit-only | Mutates a fixture runtime-result.yaml. |
+| `uh mission dry-run` | src/cli.ts wiring; src/adapters/*.ts `dryRun*` (e.g. `dryRunOhMyPi`, `dryRunCodex`, `dryRunCommandCode`) | tests/dry-run-overrides.test.ts; tests/cli-template.test.ts | none | none | unit-only | Prints a planned command; never spawns a runtime. |
+| `uh mission run` | src/cli.ts `RUNTIME_WIRINGS`; src/adapters/*.ts `run*` runners; src/harness/runtime-attempt.ts | tests/cli-observatory.test.ts; tests/prompt-transmission.test.ts; tests/runtime-*.test.ts | none | none | unit-only | cli-observatory drives the real CLI but every run settles `blocked`; adapter run tests inject fake runners. No adapter dispatch has ever completed live here. |
+| `uh mission cancel` | src/harness/mission-cancel.ts: `cancelLocalMissionRun`, `cancelMissionRunViaPlugin` | tests/mission-cancel.test.ts; tests/runtime-settlement.test.ts; tests/runtime-process.test.ts | R5 | none | unit-only | Tests use synthesized run artifacts and injected process state; the live guardian-receipt settlement path is never exercised. |
+| `uh mission run-all` | src/harness/run-all.ts: `runMissionAcrossRuntimes`, `persistRuntimeComparison` | tests/run-all.test.ts | none | none | unit-only | `runtimeRunner` is injected; no multi-adapter run happened. |
+| `uh mission run-team` | src/harness/team-run.ts: `runTeamMission` | tests/team-run.test.ts; tests/team-salvage.test.ts; tests/team-commit-hygiene.test.ts; tests/worktree-lock.test.ts | C1, S1, S2, S3 | none | unit-only | `runnerFor` and `verifier` are injected fakes; no worker wave has ever run. |
+| `uh sandbox create` | src/harness/sandbox.ts: `createSandbox` | tests/sandbox.test.ts | none | none | unit-only | Real git worktree creation against a temp repo, but no mission used it. |
+| `uh sandbox list` | src/harness/sandbox.ts: `listSandboxes` | tests/sandbox.test.ts | none | none | unit-only | CLI-level test. |
+| `uh sandbox status` | src/harness/sandbox.ts: `getSandboxStatus` | tests/sandbox.test.ts | none | none | unit-only | CLI-level test. |
+| `uh sandbox discard` | src/harness/sandbox.ts: `discardSandbox` | tests/sandbox.test.ts | none | none | unit-only | CLI-level test. |
+| `uh skill add` | src/harness/skill.ts: `addSkill` | tests/skill.test.ts | none | none | unit-only | CLI-level test. |
+| `uh skill list` | src/harness/skill.ts: `listSkills` | tests/skill.test.ts | none | none | unit-only | CLI-level test. |
+| `uh skill check` | src/harness/skill.ts: `checkSkill` | tests/skill.test.ts | none | none | unit-only | CLI-level test. |
+| `uh tui` | src/cli.ts `tui` action spawning Bun; src/tui/index.tsx and src/tui/*.ts | tests/cli-tui.test.ts; tests/tui-state.test.ts; tests/tui-model.test.ts; tests/tui-keymap.test.ts; tests/tui-theme.test.ts | none | none | unit-only | cli-tui only asserts registration/help; the OpenTUI/Solid render is never exercised in the suite. |
+| `uh tui screenshot` | src/tui/screenshot-pipeline.ts; src/tui/screenshot.tsx | tests/tui-screenshot-pipeline.test.ts | none | none | unit-only | Pure frame pipeline tested; Bun render invocation not. |
+| `uh mcp serve` | src/harness/mcp-server.ts: `serveMcpStdio`, `createMcpServer` | tests/mcp-server.test.ts; tests/cli-mcp.test.ts | none | none | unit-only | cli-mcp speaks real JSON-RPC over stdio to the spawned CLI. |
+| ACP runtime adapter (`acp`) | src/adapters/acp.ts: `runAcp`, `checkAcp`, `planAcpRun`, `AcpClient`, `extractAcpAgentText` | tests/acp.test.ts | none | none | unit-only | Tests drive a scripted ACP client; no live ACP agent process is run. |
+| Progressive semantic routing | src/harness/auto-route.ts: `chooseSemanticRoute` | tests/auto-route.test.ts | none | none | unit-only | The TypeSafe System One classifier is injected/faked; no live classification. |
+| Mission `decision_policy` schema | src/schema/mission.ts: `DecisionPolicySchema` | tests/auto-route.test.ts; tests/typesafe.test.ts | none | none | unit-only | Schema parse tests only. |
+| `guard.allow_native_subagents` + native sub-agent denial | src/harness/tool-guard.ts: `decideToolCall` | tests/tool-guard-agent-clients.test.ts | none | none | unit-only | Pure decision function. |
+| Delegated-agent route attestation | src/harness/runtime-supervision.ts: `nativeDelegatedRoutes` | tests/runtime-delegated-route.test.ts | none | none | unit-only | Synthetic native event streams. |
+| oh-my-pi per-run `omp-overlay.yml` | src/adapters/oh-my-pi.ts: `planOhMyPiRun` | tests/oh-my-pi-route-overlay.test.ts | none | none | unit-only | Asserts generated config content. |
+| Project fleet policy | src/harness/fleet-policy.ts: `decideFleetAdmission`, `assertFleetAdmission`, `authorizedFleetAdapters` | tests/fleet-policy.test.ts | none | none | unit-only | Fixture `fleet.routes`. |
+| Codex `runtime_config.model` + route attestation | src/adapters/codex.ts: run/plan exports | tests/codex.test.ts | none | none | unit-only | Fake runner; codex CLI never invoked. |
+| `containment_escape` guard class | src/harness/tool-guard.ts: `decideToolCall` | tests/tool-guard-containment.test.ts | none | none | unit-only | Pure decision function. |
+| `guard_tamper` guard class | src/harness/tool-guard.ts: `decideToolCall` | tests/tool-guard.test.ts | none | none | unit-only | Pure decision function. |
+| `limits.max_thinking_ms` reasoning liveness | src/harness/runtime-supervision.ts: `RuntimeSupervision` | tests/runtime-supervision.test.ts | none | none | unit-only | Synthetic event windows. |
+| Terminal contract (`UH_RESULT`, exit codes) | src/harness/exit-codes.ts: `exitCodeForRun`; src/cli.ts settlement payload | tests/exit-codes.test.ts; tests/cli-observatory.test.ts | none | none | unit-only | cli-observatory asserts blocked=2 and relative run_dir; no passing/cancelled live run. |
+| Native event-stream loop-probe | src/harness/loop-probe.ts | tests/loop-probe.test.ts | none | none | unit-only | Fixture ndjson streams. |
+| OTLP trace push client | src/harness/otlp-push.ts: `pushOtlpTraces` | tests/otlp-push.test.ts | none | none | unit-only | NOT exposed by any `uh` leaf command in src/cli.ts; tests inject a fetch, no live collector. |
+| Team run salvage | src/harness/team-run.ts (salvage path) | tests/team-salvage.test.ts | none | none | unit-only | Injected workers; eligible branches are fixture worktrees. |
+| Guarded project-root refusal (`mission run` without sandbox) | src/cli.ts: `mission run` sandbox guard block | tests/cli-observatory.test.ts | none | none | unit-only | The test asserts the refusal and the blocked UH_RESULT; it never runs a guarded worker in a root. |
+| Token usage capture (`runtime.usage`) | src/harness/usage.ts: `usageFromOpenAI`, `estimateUsage`, `aggregateRuntimeUsage`, `estimateConfiguredCost` | tests/usage.test.ts | none | none | unit-only | Parsers tested on fixture payloads. |
+| Guarded Command Code print-mode (fail-closed hooks) | src/adapters/command-code.ts: `planCommandCodeRun`, `runCommandCode`, `checkCommandCode` | tests/command-code.test.ts | G1 | none | unit-only | Plan/parse unit tests; registry G1 probes remain unproven. |
+| Native Anthropic adapter (`anthropic`) | src/adapters/anthropic.ts | tests/anthropic.test.ts | none | none | unit-only | No live Messages-API call; graduation to `active` is pending live smoke (CHANGELOG 0.9.0). |
+| Honcho memory operations + opt-out | src/extensions/honcho-memory/index.ts, client.ts, config.ts | tests/extension-honcho-memory.test.ts; tests/hermes.test.ts | none | none | unit-only | Fake client; real Honcho API never contacted. |
+| Telemetry primitive (PostHog) | src/harness/telemetry.ts: `installTelemetryHooks` | tests/telemetry.test.ts | none | none | unit-only | CHANGELOG 0.9.0 marks it unwired: no events emitted, no PostHog call. |
+| `container` sandbox backend | src/harness/sandbox-backends.ts: `ContainerBackend`, `runOpenSandboxCommand` | tests/sandbox-backends.test.ts; tests/sandbox.test.ts | none | none | unit-only | OpenSandbox mock mode only; CHANGELOG 0.8.0 states CI has no container runtime. |
+| `directory` sandbox backend | src/harness/sandbox-backends.ts: `DirectoryBackend` | tests/sandbox-backends.test.ts | none | none | unit-only | Local clone backend; real git against a temp repo. |
+| Verify-then-promote `auto-on-verify` | src/harness/verify.ts + src/harness/promote.ts auto-promote path | tests/verify.test.ts; tests/promote.test.ts | none | none | unit-only | Fixture verification result triggers the write. |
+| OpenRouter adapter (`openrouter`) | src/adapters/openrouter.ts | tests/openrouter.test.ts | none | none | unit-only | No live HTTP; `OPENROUTER_API_KEY` path unproven. |
+| `pi` adapter | src/adapters/pi.ts | tests/pi.test.ts | none | none | unit-only | Plan/parse tests against fixture output. |
+| `oh-my-pi` adapter (`oh-my-pi`) | src/adapters/oh-my-pi.ts | tests/oh-my-pi.test.ts; tests/oh-my-pi-route-overlay.test.ts | none | none | unit-only | Injected `OhMyPiRunner`; `omp` binary never launched. |
+| `hermes` adapter | src/adapters/hermes.ts | tests/hermes.test.ts; tests/adapter.test.ts | none | none | unit-only | Plan/run with injected runner. |
+| `hermes-proxy` adapter | src/adapters/hermes-proxy.ts | tests/hermes-proxy.test.ts | none | none | unit-only | SSE parser + plan tests; no live proxy. |
+| `codex` adapter | src/adapters/codex.ts | tests/codex.test.ts | none | none | unit-only | Injected runner; codex CLI never launched. |
+| `claude-code` adapter | src/adapters/claude-code.ts | tests/claude-code.test.ts | none | none | unit-only | CHANGELOG 0.11.0 says "End-to-end coordinator delegation is not yet validated". |
+| Adapter auto-routing `chooseAdapter` (UH-101) | src/harness/auto-route.ts: `chooseAdapter`, `formatAutoRouteExplain` | tests/auto-route.test.ts | none | none | unit-only | Deterministic selection over a fixture capability table. |
+| Runtime requirements preflight | src/harness/runtime-requirements.ts: `assertRuntimeRequirements` | tests/runtime-requirements.test.ts | none | none | unit-only | Fixture missions. |
+| Mission capability matching | src/harness/capabilities.ts: `assertRuntimeCapabilities` | tests/capabilities.test.ts | none | none | unit-only | Fixture manifests. |
+| Runtime supervision (denial budget, protected-path stop, repeated failure, turn limit) | src/harness/runtime-supervision.ts: `RuntimeSupervision` | tests/runtime-supervision.test.ts; tests/tool-guard.test.ts | G2, G3, R7 | none | unit-only | Synthetic event streams; registry G2/G3/R7 probes unproven. |
+| Deadline grace delivery | src/harness/runtime-recovery.ts (on_deadline path) | tests/runtime-recovery.test.ts; tests/runtime-settlement.test.ts | R11 | none | unit-only | Fixture control receipts; registry R11-deadline-grace unproven. |
+| Controller-loss recovery | src/harness/runtime-settlement.ts: `reconcileRuntimeSettlement`; src/harness/runtime-recovery.ts | tests/runtime-settlement.test.ts | R10 | none | unit-only | Synthesized settled attempt; registry R10-controller-loss unproven. |
+| Stall recovery | src/harness/runtime-supervision.ts + src/harness/runtime-recovery.ts | tests/runtime-supervision.test.ts; tests/runtime-recovery.test.ts | R10 | none | unit-only | Registry R10-stall is the single fixture_only entry in docs/acceptance/README.md; no real stall has been produced. |
+| Repeated-failure stop and recovery | src/harness/runtime-supervision.ts + src/harness/runtime-recovery.ts | tests/runtime-recovery.test.ts | R7 | none | unit-only | Registry R7-repeated-failure unproven. |
+| Missing worker output handling | src/harness/team-run.ts | tests/team-run.test.ts | C1 | none | unit-only | Registry C1-missing-output unproven. |
+| Team resource-wave admission | src/harness/runtime-resources.ts: `mapResourceWaves`, `mapBounded`, `workerConcurrency`; src/harness/team-run.ts | tests/runtime-resources.test.ts; tests/team-run.test.ts | S1, S2, S3 | none | unit-only | Registry S1/S2/S3 unproven. |
+| Unknown-cost / budget-exhausted admission | src/harness/runtime-accounting.ts: `readRuntimeAccounting`; src/harness/team-run.ts | tests/runtime-accounting.test.ts; tests/team-run.test.ts | S3 | none | unit-only | Registry S3-unknown-cost and S3-budget-exhausted unproven. |
+| Guardian ownership / settlement receipt | src/harness/runtime-settlement.ts; src/harness/windows-job.ps1, windows-job.cs | tests/runtime-settlement.test.ts | R5 | none | unit-only | Registry R5 and R5-deep-path unproven; the live Windows guardian has not produced a receipt here. |
+| Forward-slash artifact paths | src/harness/artifact-paths.ts: `relativeArtifactPath` | tests/artifact-paths.test.ts; tests/per-run-artifact-dirs.test.ts | X1 | none | unit-only | Registry X1-paths unproven. |
+| Per-run artifact directories | src/harness/run-id.ts: `ensureRunDir`, `writeLatestPointer`, `appendRunsIndexEntry`, `mirrorRuntimeResultToLatest` | tests/per-run-artifact-dirs.test.ts; tests/artifact-transaction.test.ts | none | none | unit-only | Fixture mission directories. |
+| Run history retention (prune) | src/harness/run-id.ts: `pruneOldRuns` | tests/prune-old-runs.test.ts; tests/artifact-transaction.test.ts | none | none | unit-only | Prunes fixture run dirs; plugin retention endpoint tested separately. |
+| Independent review (packet + assessment) | src/harness/independent-review.ts; src/harness/independent-review-execution.ts | tests/independent-review.test.ts | none | none | unit-only | Advisory artifact only; no reviewer run live. |
+| TypeSafe System One integration | src/harness/typesafe.ts; src/harness/decision-receipts.ts: `recordAcceptanceDecision` | tests/typesafe.test.ts; tests/decision-receipts.test.ts | none | none | unit-only | Provider injected; receipts written from fixtures, never from a live model. |
+| Dispatch context contract | src/harness/dispatch-context.ts: `buildDispatchContext`; src/harness/render-prompt.ts: `renderPrompt` | tests/dispatch-context.test.ts | none | none | unit-only | Rendered prompt compared to fixtures. |
+| Tool guard (path-only policy) | src/harness/tool-guard.ts: `decideToolCall` | tests/tool-guard.test.ts; tests/tool-guard-cwd.test.ts; tests/tool-guard-containment.test.ts; tests/tool-guard-agent-clients.test.ts | G1, G3 | none | none | unit-only | Pure decision function; registry G1/G3 probes unproven. |
+| Hermes Dashboard plugin | apps/hermes-plugin/dashboard (JS bundle + Python FastAPI bridge) | TS: tests/plugin-helpers.test.ts, tests/plugin-router.test.ts, tests/plugin-bundle-size.test.ts, tests/recent-runs-pane.test.ts, tests/replay-mode.test.ts, tests/cost-gauge.test.ts, tests/prompt-line-diff.test.ts, tests/runtime-result-diff.test.ts, tests/live-events-utils.test.ts; Python: apps/hermes-plugin/dashboard/tests/*.py | none | none | unknown | The Python pytest bridge suite exists but is not executed by `bun run test` here, so the bridge's live behaviour is neither proven nor disproven from this checkout. |
+| ACP session template + runbook | .harness/templates/acp-worker.yaml; docs/runbooks/acp-setup.md | tests/acp.test.ts (schema/plan coverage only) | none | none | unit-only | Template is a data file; no live ACP run. |
+
+## 2. Operating loop, in order
+
+The capabilities an orchestrator depends on to run one team wave safely, with
+the class from the table above and one sentence on what a live proof would have
+to show.
+
+| step | capability (table row) | class | what a live proof would have to show |
+|---|---|---|---|
+| dispatch | `uh mission run` / `uh mission run-team` worker dispatch | unit-only | A real adapter process started in a bound worktree reaches a terminal `runtime-result.yaml` with the assigned route attested, not a `blocked` fixture settlement. |
+| guard | Tool guard + `guard.allow_native_subagents` | unit-only | A live worker's blocked write/agent-client command is denied by the real hook and the denial is counted in `runtime-control.json`, while benign commands (`grep -r omp src`) are not denied. |
+| supervision limits | Runtime supervision (turn, wall, stall, denial, repetition, output limits) | unit-only | A live run actually trips each limit and the matching `stop_code` is written with the owned process tree settled, not simulated. |
+| cancel | `uh mission cancel` local + plugin paths | unit-only | A freshly launched live run is cancelled and settles `status: cancelled` with a guardian receipt, exactly the behaviour that was missing. |
+| liveness | loop-probe + `limits.max_thinking_ms` + heartbeat staleness | unit-only | A live stalled or looping worker is classified as not-live, and a reasoning-only worker is correctly distinguished from a stuck one. |
+| salvage | team-run salvage of limit/deadline-stopped workers | unit-only | A live worker stopped by a limit, whose declared outputs and checks pass, is retained and listed as an eligible branch in the integration report. |
+| integrate | team-run leader mechanical integration (merge/cherry-pick/rebase) | unit-only | Several live worker branches are merged into a leader worktree and the integrated tree is committed, with conflicts and outcomes recorded. |
+| verify | `uh verify` (checks, ACs, declared-output checks) | unit-only | A live mission's real commands run in the bound sandbox and produce a `verification.yaml` whose status matches reality. |
+| promote | `uh promote` + `auto-on-verify` policy | unit-only | A verified mission actually promotes (or is refused) into the canonical tree and writes `promotion.yaml`, respecting human authority. |
+| resume | runtime-recovery resume of eligible stops | unit-only | A live run stopped with an eligible stop code resumes from its saved native session and preserves prior work. |
+| cost accounting | runtime-accounting + token-usage capture | unit-only | Real provider usage is captured and summed per worker, with missing counters remaining `unknown` and blocking further paid admission. |
+| comparison | `uh observatory compare` over real run sets | unit-only | Two arms built from genuinely executed live runs are compared with Wilson intervals and honest unknown-cost handling. |
+
+## 3. Counts per class
+
+Table 1 (capabilities) has 98 data rows:
+
+- proven: 0
+- unit-only: 96
+- untested: 1 (`uh mission show`)
+- unknown: 1 (Hermes Dashboard plugin Python bridge)
+
+Table 2 (operating loop) has 12 data rows, all `unit-only`, so the document
+totals are 110 data rows and 114 pipe-lines (including the 4 header/separator
+rows). No row anywhere is `proven`: `acceptance/evidence/` does not exist in this
+checkout, there are no `.harness/missions/*/runs/` directories, and
+`docs/acceptance/README.md` classifies every registered capability as `unproven`
+except `R10-stall` (`fixture_only`).
+
+## 4. The ten rows most dangerous to leave unproven
+
+1. `uh mission run` — the dispatch path every other capability hangs off; only its `blocked` settlement has ever been observed through the CLI.
+2. `uh mission run-team` — the whole orchestrator wave (dispatch, waves, integrate, verify) is exercised only through injected fakes, so a real wave can still be unbuilt.
+3. `uh mission cancel` — cancellation is exactly the behaviour that turned out never to have been built, and its tests use synthesized artifacts rather than a live process tree.
+4. Tool guard / guard classes (`G1`, `G3`) — the safety boundary that stops protected-path writes and agent-client spawns has never fired against a real runtime.
+5. Runtime supervision limits (`G2`, `R7`) — the guarantee that a task stops at its denial budget, turn cap or repeated failure is only proven on synthetic event streams.
+6. Deadline grace (`R11`) — the claim that a cut-off worker still leaves an `INCOMPLETE` deliverable is unproven; the registry only has a deadline entry with no evidence.
+7. Team cost admission (`S3`) — unknown-cost and budget-exhausted admission gate real spend, and neither has ever blocked a live paid worker.
+8. `uh verify` + promotion gate — the mechanism that decides whether work is acceptable and promoted has never run against a live mission result.
+9. `uh acceptance run` — the evidence mechanism itself; because it has never executed a live capability, all 20 registry entries are unproven by construction.
+10. Live adapter dispatch for `oh-my-pi` / `codex` / `hermes` — no adapter runner has completed a real run in this checkout, so per-runtime behaviour is inferred only from injected-runner tests.
diff --git a/docs/verification/checks.md b/docs/verification/checks.md
index d054d9a..112a317 100644
--- a/docs/verification/checks.md
+++ b/docs/verification/checks.md
@@ -1,5 +1,30 @@
 # Checks
 
+## Declared output checks
+
+`uh verify <mission-id>` checks every `expected_artifacts` entry after command
+checks. Legacy `expected_outputs.files` declarations use the same verification.
+Paths resolve inside the effective workspace (the bound sandbox when selected).
+Missing, empty, non-regular, unreadable, and workspace-escaping outputs fail.
+Directory links cannot redirect these reads outside the workspace.
+
+```yaml
+expected_artifacts:
+  - path: out/data.json
+  - path: out/report.md
+    completion_marker: DONE
+```
+
+Files ending in `.json`, or explicitly declared with `type: json`, must parse.
+An optional `completion_marker` must match the last nonblank line exactly after
+trimming surrounding whitespace. Thus a required `DONE` marker does not accept
+`BLOCKED: ...`. Parse failures do not copy malformed file contents into findings.
+
+These checks appear in the existing `verification.yaml` result and can verify
+file-only missions without a shell command. Presence, syntax, and a marker do
+not prove that claims are correct: retain semantic acceptance criteria and
+independent review. These checks are not a filesystem sandbox or a secret scanner.
+
 ## Documentation checks
 
 ```bash
diff --git a/examples/templates/acp-worker.yaml b/examples/templates/acp-worker.yaml
new file mode 100644
index 0000000..a17ba8d
--- /dev/null
+++ b/examples/templates/acp-worker.yaml
@@ -0,0 +1,14 @@
+schema_version: uh.session-template.v0
+id: acp-worker
+name: ACP Worker
+description: Session template for headless ACP v1 agent worker
+runtime: acp
+tier: balanced
+runtime_config:
+  server_command: acp-agent
+  protocol_version: 1
+  timeout_ms: 600000
+limits:
+  timeout_ms: 1800000
+  stall_timeout_ms: 600000
+  max_turns: 60
diff --git a/examples/templates/balanced.yaml b/examples/templates/balanced.yaml
new file mode 100644
index 0000000..b636079
--- /dev/null
+++ b/examples/templates/balanced.yaml
@@ -0,0 +1,18 @@
+schema_version: uh.session-template.v0
+id: balanced
+title: Balanced Standard Execution
+tier: balanced
+containment: standard
+adapter: hermes
+runtime_config_overrides:
+  model: "<provider/model>"
+  thinking: low
+limits:
+  max_turns: 15
+  timeout_ms: 300000
+  stall_timeout_ms: 60000
+recovery:
+  max_resumes: 1
+  notes: Single resumption on stall or timeout before terminal failure.
+attempts: 1
+notes: Default balanced configuration providing standard turn limits and single-resume recovery.
diff --git a/examples/templates/exhaustive.yaml b/examples/templates/exhaustive.yaml
new file mode 100644
index 0000000..312d8b7
--- /dev/null
+++ b/examples/templates/exhaustive.yaml
@@ -0,0 +1,22 @@
+schema_version: uh.session-template.v0
+id: exhaustive
+title: Exhaustive Deep Execution
+tier: exhaustive
+containment: standard
+adapter: hermes
+runtime_config_overrides:
+  model: "<provider/model>"
+  thinking: high
+limits:
+  max_turns: 50
+  timeout_ms: 900000
+  stall_timeout_ms: 120000
+recovery:
+  max_resumes: 3
+  notes: Multi-attempt recovery with deadline grace for exhaustive completion.
+  on_deadline:
+    grace_turns: 5
+    grace_timeout_ms: 300000
+    notes: Grace period to allow active reasoning loops to finish and summarize.
+attempts: 3
+notes: Exhaustive configuration with high reasoning budget, deep turn limits, and multiple attempts.
diff --git a/examples/templates/low-cost.yaml b/examples/templates/low-cost.yaml
new file mode 100644
index 0000000..93dff0c
--- /dev/null
+++ b/examples/templates/low-cost.yaml
@@ -0,0 +1,18 @@
+schema_version: uh.session-template.v0
+id: low-cost
+title: Low-Cost Fast Execution
+tier: low-cost
+containment: standard
+adapter: hermes
+runtime_config_overrides:
+  model: "<provider/model>"
+  thinking: none
+limits:
+  max_turns: 5
+  timeout_ms: 120000
+  stall_timeout_ms: 30000
+recovery:
+  max_resumes: 0
+  notes: Fast-fail without retries for inexpensive exploratory runs.
+attempts: 1
+notes: Budget-conscious configuration with zero recovery retries and minimal reasoning overhead.
diff --git a/examples/templates/strict-sandbox.yaml b/examples/templates/strict-sandbox.yaml
new file mode 100644
index 0000000..d93b480
--- /dev/null
+++ b/examples/templates/strict-sandbox.yaml
@@ -0,0 +1,26 @@
+schema_version: uh.session-template.v0
+id: strict-sandbox
+title: Strict Sandbox Contained Execution
+tier: balanced
+containment: strict
+adapter: hermes
+runtime_config_overrides:
+  model: "<provider/model>"
+  thinking: low
+limits:
+  max_turns: 15
+  timeout_ms: 300000
+  stall_timeout_ms: 60000
+guard:
+  write_roots:
+    - src
+    - tests
+  deny_network_clients: true
+  allow_native_subagents: false
+  deny_git_mutations: true
+  deny_package_installs: true
+recovery:
+  max_resumes: 1
+  notes: Contained resumption within sandbox boundary.
+attempts: 1
+notes: Strict containment template enforcing bounded write roots, disabled native subagents, and disabled network access.
diff --git a/package.json b/package.json
index 16371de..105e9bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@agenticengineeringagency/ultimate-harness",
-  "version": "0.9.0",
+  "version": "0.11.0",
   "description": "Runtime-agnostic software-development harness for agentic engineering work.",
   "type": "module",
   "bin": {
@@ -39,6 +39,7 @@
     "build": "rm -rf dist && tsc -p tsconfig.json",
     "test": "vitest run",
     "typecheck": "tsc -p tsconfig.tests.json --noEmit",
+    "landscape:verify": "node scripts/landscape/verify-register.mjs",
     "tui-spike": "bun bin/uh-tui-spike.tsx",
     "clean": "rm -rf dist",
     "publish:dry-run": "bun publish --dry-run",
diff --git a/scripts/landscape/README.md b/scripts/landscape/README.md
new file mode 100644
index 0000000..76ce82e
--- /dev/null
+++ b/scripts/landscape/README.md
@@ -0,0 +1,73 @@
+# Landscape register freshness check
+
+`verify-register.mjs` re-checks the quoted passages in
+`docs/research/landscape-register.json` against their source pages. It fetches
+sources with a 20-second timeout and one retry, normalizes HTML to words, and
+compares the quote's 4-grams with the source's 4-grams. A quote is verified at
+coverage `>= 0.85`; lower coverage from a successful page is drifted.
+
+GitHub repository URLs are also checked through the raw `README.md` URL, and
+GitHub blob URLs through their raw file URL. Other non-Markdown URLs also try
+`<url>.md` and `<url>/index.md` after the primary page. These fallbacks handle
+client-rendered pages and pages whose readable content is published as raw
+Markdown. The normalizer follows the original one-off verifier: decode HTML
+entities, replace tags with whitespace, lowercase, and discard non-ASCII
+letters and digits before making 4-grams.
+
+## Running it
+
+From the repository root:
+
+```sh
+npm run landscape:verify
+```
+
+Useful options:
+
+```sh
+npm run landscape:verify -- --only "Cursor CLI"
+npm run landscape:verify -- --concurrency 8 --json /tmp/landscape-result.json
+npm run landscape:verify -- --fixture-dir tests/fixtures/landscape
+node scripts/landscape/verify-register.mjs --register tests/fixtures/landscape/register.json --fixture-dir tests/fixtures/landscape
+```
+
+`--only` matches the tool name or source URL. `--concurrency` defaults to 4.
+`--json` writes the rows, summary counts, and selected exit code. With
+`--fixture-dir`, each URL is read from a file named with its SHA-256 URL hash
+(`.html`, `.md`, or `.txt`); this avoids network access when replaying captured
+snapshots. A same-hash `.status` sidecar can represent a captured non-2xx
+response. The optional `--register` flag is useful for testing a copied
+register; the default input remains `docs/research/landscape-register.json`.
+
+## Reading the output
+
+One state line is printed for every selected row, followed by a complete summary:
+
+```text
+verified Verified Tool https://fixtures.test/verified coverage=1.00
+drifted Drifted Tool https://fixtures.test/drifted coverage=0.00
+unreachable Unreachable Tool https://fixtures.test/unreachable coverage=0.00
+unverifiable Guide Tool orca://skills/test coverage=0.00
+landscape: verified 1 drifted 1 unreachable 1 unverifiable 1 of 4
+```
+
+- `verified`: a fetched source has at least 85% quote 4-gram coverage.
+- `drifted`: a fetched source has less than 85% coverage; review and re-quote it.
+- `unreachable`: every attempted source variant failed or returned a non-2xx status.
+- `unverifiable`: the row has no URL or is marked as sourced from an installed/local guide.
+
+The command exits 1 if any row drifted. It exits 2 if there are unreachable rows
+and no drifted rows, otherwise it exits 0.
+
+## Monthly procedure
+
+1. Run `npm run landscape:verify` and save the JSON output if an audit artifact
+   is needed.
+2. Open each `drifted` row's live source and confirm the changed wording.
+3. Re-quote the current passage, update its `date_checked` (and any relevant
+   version or commit metadata), then rerun the check.
+4. If a row has a `history` field, retain the previous quote there. The current
+   register has no `history` field, so record prior wording in the project's
+   normal review/change record rather than inventing a new row field.
+5. Investigate `unreachable` rows separately; do not replace a source quote
+   solely because the page was temporarily unavailable.
diff --git a/scripts/landscape/verify-register.mjs b/scripts/landscape/verify-register.mjs
new file mode 100644
index 0000000..31aab5b
--- /dev/null
+++ b/scripts/landscape/verify-register.mjs
@@ -0,0 +1,259 @@
+#!/usr/bin/env node
+
+import { createHash } from "node:crypto";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const COVERAGE_THRESHOLD = 0.85;
+const REQUEST_TIMEOUT_MS = 20_000;
+const MAX_ATTEMPTS = 2;
+const DEFAULT_CONCURRENCY = 4;
+
+function usage() {
+  console.error(
+    "Usage: node scripts/landscape/verify-register.mjs [--only <substring>] [--concurrency <n>] [--json <path>] [--fixture-dir <path>] [--register <path>",
+  );
+}
+
+function parseArgs(argv) {
+  const options = {
+    only: "",
+    concurrency: DEFAULT_CONCURRENCY,
+    jsonPath: undefined,
+    fixtureDir: undefined,
+    registerPath: resolve(process.cwd(), "docs/research/landscape-register.json"),
+  };
+
+  for (let index = 0; index < argv.length; index += 1) {
+    const arg = argv[index];
+    if (arg === "--only") options.only = requiredValue(argv, ++index, arg);
+    else if (arg === "--concurrency") {
+      const value = Number.parseInt(requiredValue(argv, ++index, arg), 10);
+      if (!Number.isInteger(value) || value < 1) throw new Error("--concurrency must be a positive integer");
+      options.concurrency = value;
+    } else if (arg === "--json") options.jsonPath = resolve(requiredValue(argv, ++index, arg));
+    else if (arg === "--fixture-dir") options.fixtureDir = resolve(requiredValue(argv, ++index, arg));
+    else if (arg === "--register") options.registerPath = resolve(requiredValue(argv, ++index, arg));
+    else if (arg === "--help" || arg === "-h") {
+      usage();
+      process.exit(0);
+    } else throw new Error(`unknown option: ${arg}`);
+  }
+  return options;
+}
+
+function requiredValue(argv, index, option) {
+  const value = argv[index];
+  if (!value || value.startsWith("--")) throw new Error(`${option} requires a value`);
+  return value;
+}
+
+function decodeEntities(value) {
+  return value
+    .replace(/&#x([\da-f]+);?/gi, (_, code) => String.fromCodePoint(Number.parseInt(code, 16)))
+    .replace(/&#(\d+);?/g, (_, code) => String.fromCodePoint(Number.parseInt(code, 10)))
+    .replace(/&quot;/gi, '"')
+    .replace(/&#39;|&apos;/gi, "'")
+    .replace(/&amp;/gi, "&")
+    .replace(/&lt;/gi, "<")
+    .replace(/&gt;/gi, ">");
+}
+
+// Keep this normalization intentionally aligned with verify_fetched4.js: HTML
+// entities are decoded, tags become whitespace, then punctuation is discarded.
+function words(value) {
+  return decodeEntities(String(value ?? ""))
+    .replace(/<[^>]+>/g, " ")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, " ")
+    .trim()
+    .split(" ")
+    .filter(Boolean);
+}
+
+function grams(wordList, size = 4) {
+  const result = new Set();
+  for (let index = 0; index + size <= wordList.length; index += 1) {
+    result.add(wordList.slice(index, index + size).join(" "));
+  }
+  return result;
+}
+
+function coverage(quote, text) {
+  const quoteGrams = grams(words(quote));
+  if (quoteGrams.size === 0) return 0;
+  const pageGrams = grams(words(text));
+  let hits = 0;
+  for (const gram of quoteGrams) if (pageGrams.has(gram)) hits += 1;
+  return hits / quoteGrams.size;
+}
+
+function urlVariants(sourceUrl) {
+  const variants = [sourceUrl];
+  const githubRepo = sourceUrl.match(/^https:\/\/github\.com\/([^/]+)\/([^/#?]+)\/?$/);
+  if (githubRepo) variants.unshift(`https://raw.githubusercontent.com/${githubRepo[1]}/${githubRepo[2]}/HEAD/README.md`);
+  const githubBlob = sourceUrl.match(/^https:\/\/github\.com\/([^/]+)\/([^/]+)\/blob\/([^/]+)\/(.+)$/);
+  if (githubBlob) {
+    variants.unshift(`https://raw.githubusercontent.com/${githubBlob[1]}/${githubBlob[2]}/${githubBlob[3]}/${githubBlob[4]}`);
+  }
+  if (!/github\.com|githubusercontent\.com/.test(sourceUrl) && !/\.md$/i.test(sourceUrl)) {
+    variants.push(`${sourceUrl.replace(/\/?$/, "")}.md`);
+    variants.push(`${sourceUrl.replace(/\/?$/, "")}/index.md`);
+  }
+  return [...new Set(variants)];
+}
+
+function stableHash(url) {
+  return createHash("sha256").update(url).digest("hex");
+}
+
+async function fixtureResponse(fixtureDir, url) {
+  const hash = stableHash(url);
+  const base = resolve(fixtureDir, hash);
+  for (const extension of [".html", ".md", ".txt", ""]) {
+    try {
+      const body = await readFile(`${base}${extension}`, "utf8");
+      let status = 200;
+      try {
+        status = Number.parseInt((await readFile(`${base}.status`, "utf8")).trim(), 10);
+        if (!Number.isInteger(status)) status = 200;
+      } catch {
+        // A status sidecar is optional for successful fixture pages.
+      }
+      return { status, body };
+    } catch {
+      // Try the next supported fixture extension.
+    }
+  }
+  try {
+    const status = Number.parseInt((await readFile(`${base}.status`, "utf8")).trim(), 10);
+    return { status: Number.isInteger(status) ? status : 404, body: "" };
+  } catch {
+    return { status: 404, body: "" };
+  }
+}
+
+async function fetchResponse(url) {
+  let lastError;
+  for (let attempt = 0; attempt < MAX_ATTEMPTS; attempt += 1) {
+    const controller = new AbortController();
+    const timer = setTimeout(() => controller.abort(), REQUEST_TIMEOUT_MS);
+    try {
+      const response = await fetch(url, {
+        signal: controller.signal,
+        headers: { "user-agent": "ultimate-harness-landscape-verifier" },
+      });
+      const body = response.ok ? await response.text() : "";
+      return { status: response.status, body };
+    } catch (error) {
+      lastError = error;
+    } finally {
+      clearTimeout(timer);
+    }
+  }
+  return { status: 0, body: "", error: lastError };
+}
+
+async function loadResponse(url, options) {
+  if (!options.responseCache.has(url)) {
+    options.responseCache.set(
+      url,
+      options.fixtureDir ? fixtureResponse(options.fixtureDir, url) : fetchResponse(url),
+    );
+  }
+  return options.responseCache.get(url);
+}
+
+function isGuideSourced(row) {
+  return row.source_kind === "installed_cli_guide" ||
+    row.source_kind === "local_guide" ||
+    row.coordinator_check === "not_applicable_local_guide" ||
+    String(row.source_url ?? "").startsWith("orca://");
+}
+
+async function verifyRow(row, options) {
+  const sourceUrl = typeof row.source_url === "string" ? row.source_url : "";
+  const base = {
+    system: row.system ?? "(unknown)",
+    build_item: row.build_item,
+    source_url: sourceUrl,
+    quote: row.quote,
+    date_checked: row.date_checked,
+  };
+  if (!sourceUrl || isGuideSourced(row)) return { ...base, state: "unverifiable", coverage: 0 };
+
+  let bestCoverage = 0;
+  let usedUrl = "";
+  let fetchedAny = false;
+  for (const variant of urlVariants(sourceUrl)) {
+    const response = await loadResponse(variant, options);
+    if (response.status < 200 || response.status >= 300 || response.body.length < 200) continue;
+    fetchedAny = true;
+    const candidateCoverage = coverage(row.quote, response.body);
+    if (candidateCoverage > bestCoverage) {
+      bestCoverage = candidateCoverage;
+      usedUrl = variant;
+    }
+    if (bestCoverage >= COVERAGE_THRESHOLD) break;
+  }
+
+  const state = !fetchedAny
+    ? "unreachable"
+    : bestCoverage >= COVERAGE_THRESHOLD
+      ? "verified"
+      : "drifted";
+  return { ...base, state, coverage: Number(bestCoverage.toFixed(2)), ...(usedUrl ? { via: usedUrl } : {}) };
+}
+
+async function mapConcurrent(rows, concurrency, callback) {
+  const results = new Array(rows.length);
+  let next = 0;
+  async function worker() {
+    while (true) {
+      const index = next;
+      next += 1;
+      if (index >= rows.length) return;
+      results[index] = await callback(rows[index], index);
+    }
+  }
+  await Promise.all(Array.from({ length: Math.min(concurrency, rows.length || 1) }, worker));
+  return results;
+}
+
+function summary(results) {
+  const counts = { verified: 0, drifted: 0, unreachable: 0, unverifiable: 0 };
+  for (const result of results) counts[result.state] += 1;
+  return { ...counts, total: results.length };
+}
+
+export async function run(argv = process.argv.slice(2)) {
+  const options = parseArgs(argv);
+  options.responseCache = new Map();
+  const register = JSON.parse(await readFile(options.registerPath, "utf8"));
+  if (!register || !Array.isArray(register.rows)) throw new Error("landscape register must contain a rows array");
+  const rows = options.only
+    ? register.rows.filter((row) => `${row.system ?? ""} ${row.source_url ?? ""}`.toLowerCase().includes(options.only.toLowerCase()))
+    : register.rows;
+  const results = await mapConcurrent(rows, options.concurrency, (row) => verifyRow(row, options));
+  const counts = summary(results);
+  const exitCode = counts.drifted > 0 ? 1 : counts.unreachable > 0 ? 2 : 0;
+  for (const result of results) {
+    console.log(`${result.state} ${result.system} ${result.source_url || "(no URL)"} coverage=${result.coverage.toFixed(2)}`);
+  }
+  const summaryLine = `landscape: verified ${counts.verified} drifted ${counts.drifted} unreachable ${counts.unreachable} unverifiable ${counts.unverifiable} of ${counts.total}`;
+  console.log(summaryLine);
+  if (options.jsonPath) {
+    await mkdir(dirname(options.jsonPath), { recursive: true });
+    await writeFile(options.jsonPath, `${JSON.stringify({ rows: results, summary: counts, exit_code: exitCode }, null, 2)}\n`);
+  }
+  return { results, counts, summaryLine, exitCode };
+}
+
+if (process.argv[1] && resolve(process.argv[1]) === fileURLToPath(import.meta.url)) {
+  run().then(({ exitCode }) => process.exitCode = exitCode).catch((error) => {
+    console.error(`landscape: ${error.message}`);
+    usage();
+    process.exitCode = 2;
+  });
+}
diff --git a/scripts/smoke/resource-wave/fake-omp.mjs b/scripts/smoke/resource-wave/fake-omp.mjs
new file mode 100644
index 0000000..39b5e7d
--- /dev/null
+++ b/scripts/smoke/resource-wave/fake-omp.mjs
@@ -0,0 +1,30 @@
+// Deterministic stand-in for `omp --print --mode json`, used only by the resource-wave smoke.
+// It emits the native event shapes the oh-my-pi adapter reads: route attestation, usage, final sentinel.
+// FIXTURE_COST: cost total per worker as a number, or "none" to omit cost (unknown cost).
+// FIXTURE_SLEEP_MS: how long a worker "works", so waves are observable.
+import { mkdirSync, writeFileSync } from "node:fs";
+import path from "node:path";
+
+const out = (o) => process.stdout.write(JSON.stringify(o) + "\n");
+const args = process.argv.slice(2);
+const argValue = (flag, fallback) => {
+  const index = args.indexOf(flag);
+  return index >= 0 && args[index + 1] ? args[index + 1] : fallback;
+};
+const provider = argValue("--provider", "fixture");
+const requestedModel = argValue("--model", "fixture-model");
+const model = requestedModel.includes("/") ? requestedModel.slice(requestedModel.indexOf("/") + 1) : requestedModel;
+const costMode = process.env.FIXTURE_COST ?? "0.5";
+const sleepMs = Number(process.env.FIXTURE_SLEEP_MS ?? "1500");
+const worker = path.basename(process.cwd());
+
+out({ type: "session", id: `fx-${process.pid}` });
+out({ type: "model_request_start", provider, model });
+mkdirSync("out", { recursive: true });
+writeFileSync(path.join("out", `answer-${worker}.txt`), `42 from ${worker}\n`);
+await new Promise((r) => setTimeout(r, sleepMs));
+const usage = { input: 10, output: 5, totalTokens: 15 };
+if (costMode !== "none") usage.cost = { total: Number(costMode) };
+const content = "```uh-runtime-final-message\nwrote out/answer-" + worker + ".txt\n```";
+out({ type: "message_end", message: { role: "assistant", provider, model, content, usage } });
+out({ type: "agent_end", messages: [{ role: "assistant", content, usage }] });
diff --git a/scripts/smoke/resource-wave/run.mjs b/scripts/smoke/resource-wave/run.mjs
new file mode 100644
index 0000000..2950f81
--- /dev/null
+++ b/scripts/smoke/resource-wave/run.mjs
@@ -0,0 +1,114 @@
+// Resource-wave smoke through the built CLI. No model is called: the oh-my-pi adapter is pointed at fake-omp.mjs.
+// Usage: node scripts/smoke/resource-wave/run.mjs [scenario ...]   (default: all four)
+// Requires: `npm run build` first, git on PATH, Windows (the memory cap requires the native Job guardian).
+// Each scenario creates a throwaway git project under a temp root, runs `uh mission run-team`, and prints the
+// canonical team state. UH_SMOKE_ROOT moves the root; UH_SMOKE_DEEP=1 nests it under long directory names so a
+// worker run directory exceeds the classic Windows path limit (the guardian must not depend on run-dir depth).
+import { execFileSync, spawnSync } from "node:child_process";
+import { mkdirSync, readFileSync, readdirSync, rmSync, writeFileSync, existsSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import YAML from "yaml";
+
+const here = path.dirname(fileURLToPath(import.meta.url));
+const repo = path.resolve(here, "..", "..", "..");
+const cli = path.join(repo, "dist", "cli.js");
+const fixture = path.join(here, "fake-omp.mjs").split(path.sep).join("/");
+
+const scenarios = {
+  A: { title: "budget exhausted after wave one", maxCost: 1.2, memoryMb: 512, cost: "0.5", expect: { status: "blocked", reason: /cost budget cannot reserve/ } },
+  B: { title: "budget sufficient for the second wave", maxCost: 3, memoryMb: 512, cost: "0.5", expect: { status: "passed", reason: null } },
+  C: { title: "unknown cost blocks paid admission", maxCost: 3, memoryMb: 512, cost: "none", expect: { status: "blocked", reason: /cost is unknown/ } },
+  D: { title: "memory headroom refuses before launch", maxCost: 3, memoryMb: 999999, cost: "0.5", expect: { status: "refused", reason: /Insufficient resource headroom/ } },
+};
+
+function uh(cwd, args, env = {}) {
+  return spawnSync(process.execPath, [cli, ...args], { cwd, env: { ...process.env, ...env }, encoding: "utf8" });
+}
+
+function setupProject(name, sc) {
+  let base = process.env.UH_SMOKE_ROOT ?? path.join(tmpdir(), "uh-wave");
+  if (process.env.UH_SMOKE_DEEP === "1") base = path.join(base, ...Array.from({ length: 2 }, (_, i) => `deep-segment-${i}-${"x".repeat(44)}`));
+  const root = path.join(base, name);
+  rmSync(root, { recursive: true, force: true });
+  mkdirSync(root, { recursive: true });
+  execFileSync("git", ["init", "-q", "-b", "main"], { cwd: root });
+  execFileSync("git", ["config", "core.autocrlf", "false"], { cwd: root });
+  execFileSync("git", ["config", "user.email", "smoke@example.invalid"], { cwd: root });
+  execFileSync("git", ["config", "user.name", "smoke"], { cwd: root });
+  if (uh(root, ["init"]).status !== 0) throw new Error("uh init failed");
+  if (uh(root, ["adapter", "add", "oh-my-pi", "--force"]).status !== 0) throw new Error("uh adapter add failed");
+  const manifest = path.join(root, ".harness", "adapters", "oh-my-pi.yaml");
+  writeFileSync(manifest, readFileSync(manifest, "utf8")
+    .replace("cli_command: omp", `cli_command: ${fixture}`)
+    .replace('default_provider: ""', "default_provider: fixture")
+    .replace('default_model: ""', "default_model: fixture-model"));
+  mkdirSync(path.join(root, ".harness", "missions", "wave"), { recursive: true });
+  writeFileSync(path.join(root, ".harness", "missions", "wave", "mission.yaml"), `schema_version: uh.mission.v0
+id: wave
+title: Resource wave smoke
+workflow_profile: spec-first-feature
+objective: Each worker writes one answer file under out/.
+shape: team
+team:
+  workers:
+    - role: alpha
+      adapter: oh-my-pi
+    - role: beta
+      adapter: oh-my-pi
+    - role: gamma
+      adapter: oh-my-pi
+  leader:
+    adapter: oh-my-pi
+  resources:
+    max_parallel: 2
+    worker_memory_mb: ${sc.memoryMb}
+    reserve_memory_mb: 256
+    max_cost_usd: ${sc.maxCost}
+    worker_cost_reservation_usd: 0.5
+sandbox:
+  backend: git-worktree
+  promotion_policy: human-approved
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+`);
+  writeFileSync(path.join(root, "README.md"), "smoke\n");
+  execFileSync("git", ["add", "-A"], { cwd: root });
+  execFileSync("git", ["commit", "-qm", "smoke project"], { cwd: root });
+  return root;
+}
+
+function teamState(root) {
+  const runs = path.join(root, ".harness", "missions", "wave", "runs");
+  if (!existsSync(runs)) return null;
+  for (const id of readdirSync(runs)) {
+    const p = path.join(runs, id, "team-state.json");
+    if (existsSync(p)) return JSON.parse(readFileSync(p, "utf8"));
+  }
+  return null;
+}
+
+let failures = 0;
+for (const key of process.argv.slice(2).length ? process.argv.slice(2) : Object.keys(scenarios)) {
+  const sc = scenarios[key];
+  if (!sc) { console.log(`unknown scenario ${key}`); failures++; continue; }
+  const root = setupProject(key, sc);
+  const started = Date.now();
+  const r = uh(root, ["mission", "run-team", "wave", "--retain"], { FIXTURE_COST: sc.cost });
+  const elapsed = ((Date.now() - started) / 1000).toFixed(1);
+  const state = teamState(root);
+  const parentPath = path.join(root, ".harness", "missions", "wave", "runtime-result.yaml");
+  const parent = existsSync(parentPath) ? YAML.parse(readFileSync(parentPath, "utf8")) : null;
+  let status, reason;
+  if (state) { status = state.status; reason = state.admission_blocked_reason ?? null; }
+  else { status = "refused"; reason = (r.stderr + r.stdout).match(/error: (.*)/)?.[1] ?? null; }
+  const ok = status === sc.expect.status && (sc.expect.reason ? sc.expect.reason.test(reason ?? "") : reason === null);
+  if (!ok) failures++;
+  console.log(`${ok ? "PASS" : "FAIL"} ${key} ${sc.title}: exit=${r.status} status=${status} reason=${JSON.stringify(reason)} elapsed=${elapsed}s`);
+  if (state) console.log(`       workers=${JSON.stringify(state.workers.map((w) => [w.id, w.status]))} parent cost_usd=${parent?.cost_usd ?? "unknown"} basis=${parent?.cost_basis ?? "none"}`);
+  console.log(`       project retained at ${root}`);
+}
+process.exit(failures ? 1 : 0);
diff --git a/scripts/smoke/supervisor-loop/fake-command-code-probe.mjs b/scripts/smoke/supervisor-loop/fake-command-code-probe.mjs
new file mode 100644
index 0000000..e40c626
--- /dev/null
+++ b/scripts/smoke/supervisor-loop/fake-command-code-probe.mjs
@@ -0,0 +1,41 @@
+const args = process.argv.slice(2);
+const out = event => process.stdout.write(JSON.stringify({ type: "event", event }) + "\n");
+const probe = process.env.FIXTURE_PROBE ?? "success";
+const resumed = args.includes("--resume");
+const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
+const ready = () => {
+  out({ type: "session", id: "cc-supervisor-session" });
+  out({ type: "model_request_start", model: "fixture/model" });
+};
+const success = () => {
+  const finalText = "```uh-runtime-final-message\ncompleted\n```";
+  const usage = { input_tokens: 1, output_tokens: 1, total_tokens: 2 };
+  out({ type: "run_end", result: { stopReason: "end_turn", finalText, usage } });
+  out({ type: "result", result: { subtype: "success", finalText, usage } });
+};
+if (resumed) {
+  ready();
+  success();
+} else if (probe === "cc_denials_budget") {
+  ready();
+  for (const target of ["out/a.txt", "out/b.txt", "out/c.txt"]) {
+    out({ type: "tool_queued", toolCallId: target, toolName: "write_file", input: { path: target } });
+    out({ type: "tool_hooks", toolCallId: target, toolName: "write_file", phase: "pre", outcome: { kind: "block", text: "writes are temporarily locked" } });
+    out({ type: "tool_hook_blocked", toolCallId: target, toolName: "write_file", hookOutput: "writes are temporarily locked" });
+  }
+  setInterval(() => {}, 1000);
+} else if (probe === "cmdc_shell_mutation") {
+  ready();
+  out({ type: "tool_queued", toolCallId: "cc-shell-mutation", toolName: "shell_command",
+    input: { command: "rm .harness/temporary.txt", cwd: process.cwd() } });
+  await sleep(1000);
+  setInterval(() => {}, 1000);
+} else if (probe === "cc_tamper") {
+  ready();
+  out({ type: "tool_queued", toolCallId: "cc-tamper", toolName: "write_file", input: { path: ".harness/adapters/command-code.yaml" } });
+  await sleep(1000);
+  setInterval(() => {}, 1000);
+} else {
+  ready();
+  success();
+}
diff --git a/scripts/smoke/supervisor-loop/fake-omp-probe.mjs b/scripts/smoke/supervisor-loop/fake-omp-probe.mjs
new file mode 100644
index 0000000..6b154e0
--- /dev/null
+++ b/scripts/smoke/supervisor-loop/fake-omp-probe.mjs
@@ -0,0 +1,91 @@
+import { mkdirSync, writeFileSync } from "node:fs";
+import path from "node:path";
+
+const args = process.argv.slice(2);
+const argValue = flag => {
+  const index = args.indexOf(flag);
+  return index >= 0 ? args[index + 1] : undefined;
+};
+const out = event => process.stdout.write(JSON.stringify(event) + "\n");
+const probe = process.env.FIXTURE_PROBE ?? "success";
+const provider = argValue("--provider") ?? "fixture";
+const requestedModel = argValue("--model") ?? "fixture-model";
+const model = requestedModel.includes("/") ? requestedModel.slice(requestedModel.indexOf("/") + 1) : requestedModel;
+const resumed = args.includes("--resume");
+const marker = process.env.FIXTURE_MARKER;
+const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
+const ready = () => {
+  out({ type: "session", id: "supervisor-session" });
+  out({ type: "model_request_start", provider, model });
+};
+const success = () => {
+  const content = "```uh-runtime-final-message\ncompleted\n```";
+  out({ type: "message_end", message: { role: "assistant", provider, model, content, usage: { input: 1, output: 1, totalTokens: 2 } } });
+  out({ type: "agent_end", messages: [{ type: "message", role: "assistant", content }] });
+};
+const deadlineSuccess = () => {
+  mkdirSync(path.join(process.cwd(), "out"), { recursive: true });
+  writeFileSync(path.join(process.cwd(), "out", "REPORT.md"), "INCOMPLETE\n\nMissing for the next step\n- Continue verification.\n");
+  const content = "INCOMPLETE\n\nMissing for the next step\n- Continue verification.";
+  out({ type: "message_end", message: { role: "assistant", provider, model, content, usage: { input: 1, output: 1, totalTokens: 2 } } });
+  out({ type: "agent_end", messages: [{ type: "message", role: "assistant", content }] });
+};
+const toolStart = (toolCallId, toolName, args) => {
+  out({ type: "tool_execution_start", toolCallId, toolName, args });
+};
+const toolEnd = (toolCallId, toolName, result, isError) => {
+  out({ type: "tool_execution_end", toolCallId, toolName, result, isError });
+};
+ready();
+if (resumed) {
+  out({ type: "turn_start" });
+  out({ type: "turn_end" });
+  if (probe === "deadline_grace") deadlineSuccess();
+  else success();
+} else if (probe === "deadline_grace") {
+  for (let turn = 0; turn < 4; turn++) {
+    out({ type: "turn_start" });
+    out({ type: "turn_end" });
+  }
+  setInterval(() => {}, 1000);
+} else if (probe === "denials_budget") {
+  for (const target of ["out/a.txt", "out/b.txt", "out/c.txt"]) {
+    toolStart(target, "write_file", { path: target });
+    toolEnd(target, "write_file", { content: [{ type: "text", text: "CONTRACT: writes are temporarily locked" }] }, true);
+  }
+  setInterval(() => {}, 1000);
+} else if (probe === "fails3") {
+  for (let index = 0; index < 3; index++) {
+    const id = `failure-${index}`;
+    const command = "python out/missing_script.py";
+    toolStart(id, "bash", { command });
+    toolEnd(id, "bash", { exitCode: 1 }, true);
+  }
+  setInterval(() => {}, 1000);
+} else if (probe === "inflight_stall") {
+  toolStart("held", "bash", { command: "sleep" });
+  await sleep(Number(process.env.FIXTURE_STALL_MS ?? 300));
+  toolEnd("held", "bash", { exitCode: 0 }, false);
+  success();
+} else if (probe === "stall") {
+  setInterval(() => {}, 1000);
+} else if (probe === "turncap") {
+  for (let turn = 0; turn < 4; turn++) {
+    out({ type: "turn_start" });
+    out({ type: "turn_end" });
+  }
+} else if (probe === "tamper") {
+  toolStart("tamper", "write_file", { path: ".harness/adapters/oh-my-pi.yaml" });
+} else if (probe === "tamper_absolute") {
+  toolStart("tamper-absolute", "write_file", {
+    path: path.join(process.cwd(), ".harness", "adapters", "oh-my-pi.yaml"),
+  });
+} else if (probe === "launcher_gone") {
+  out({ type: "turn_start" });
+  out({ type: "turn_end" });
+  await sleep(200);
+  if (marker) writeFileSync(marker, "ready\n");
+  setInterval(() => {}, 1000);
+} else {
+  success();
+}
diff --git a/scripts/smoke/supervisor-loop/run.mjs b/scripts/smoke/supervisor-loop/run.mjs
new file mode 100644
index 0000000..0697de8
--- /dev/null
+++ b/scripts/smoke/supervisor-loop/run.mjs
@@ -0,0 +1,161 @@
+import { execFileSync, spawn, spawnSync } from "node:child_process";
+import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";
+import { once } from "node:events";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import YAML from "yaml";
+
+const here = path.dirname(fileURLToPath(import.meta.url));
+const repo = path.resolve(here, "..", "..", "..");
+const cli = path.join(repo, "dist", "cli.js");
+const ompFixture = path.join(here, "fake-omp-probe.mjs").split(path.sep).join("/");
+const commandCodeFixture = path.join(here, "fake-command-code-probe.mjs").split(path.sep).join("/");
+const base = path.join(tmpdir(), "uh-supervisor-loop");
+const probes = ["denials_budget", "fails3", "inflight_stall", "stall", "turncap", "deadline_grace", "tamper", "tamper_absolute", "launcher_gone", "preflight_fail", "cc_denials_budget", "cc_tamper", "cmdc_shell_mutation"];
+
+function cliRun(cwd, args, env = {}) {
+  return spawnSync(process.execPath, [cli, ...args], { cwd, env: { ...process.env, ...env }, encoding: "utf8" });
+}
+
+function setup(name, probe) {
+  const root = path.join(base, name);
+  const commandCode = probe.startsWith("cc_") || probe === "cmdc_shell_mutation";
+  const runtime = commandCode ? "command-code" : "oh-my-pi";
+  const fixture = commandCode ? commandCodeFixture : ompFixture;
+  rmSync(root, { recursive: true, force: true });
+  mkdirSync(root, { recursive: true });
+  execFileSync("git", ["init", "-q", "-b", "main"], { cwd: root });
+  execFileSync("git", ["config", "user.email", "smoke@example.invalid"], { cwd: root });
+  execFileSync("git", ["config", "user.name", "smoke"], { cwd: root });
+  if (cliRun(root, ["init"]).status !== 0) throw new Error("uh init failed");
+  if (cliRun(root, ["adapter", "add", runtime, "--force"]).status !== 0) throw new Error(`uh ${runtime} adapter add failed`);
+  const manifestPath = path.join(root, ".harness", "adapters", `${runtime}.yaml`);
+  const manifest = YAML.parse(readFileSync(manifestPath, "utf8"));
+  manifest.config.cli_command = fixture;
+  manifest.config.runtime_config = { ...(manifest.config.runtime_config ?? {}), model: "fixture/model", ...(commandCode ? { permission_mode: "yolo" } : {}) };
+  if (!commandCode) manifest.config.default_provider = "fixture";
+  writeFileSync(manifestPath, YAML.stringify(manifest));
+  const missionDir = path.join(root, ".harness", "missions", name);
+  mkdirSync(missionDir, { recursive: true });
+  writeFileSync(path.join(missionDir, "mission.yaml"), YAML.stringify({
+    schema_version: "uh.mission.v0", id: name, title: `Supervisor ${probe}`, workflow_profile: "spec-first-feature",
+    objective: "Exercise the runtime supervisor.",
+    ...(probe === "preflight_fail" ? { runtime_requirements: { needs_network: true } } : {}),
+    ...(probe === "deadline_grace" ? { expected_outputs: { files: ["out/REPORT.md"] } } : {}),
+  }));
+  writeFileSync(path.join(root, "README.md"), "smoke\n");
+  execFileSync("git", ["add", "-A"], { cwd: root });
+  execFileSync("git", ["commit", "-qm", "smoke project"], { cwd: root });
+  return { root, mission: path.join(missionDir, "mission.yaml"), runtime };
+}
+function overrides(probe, extra = {}) {
+  const limits = { startup_timeout_ms: 1000, stall_timeout_ms: 100, timeout_ms: 5000, ...extra };
+  if (probe === "denials_budget" || probe === "cc_denials_budget") limits.max_denials = 3;
+  if (probe === "fails3") limits.max_repeated_failures = 3;
+  if (probe === "turncap") limits.max_turns = 3;
+  if (probe === "deadline_grace") limits.max_turns = 4;
+  return {
+    limits,
+    recovery: {
+      max_resumes: 2,
+      notes: "Continue from the saved output.",
+      ...(probe === "deadline_grace" ? { on_deadline: { grace_turns: 2 } } : {}),
+    },
+  };
+}
+
+function runAttempt(project, probe, runId, extra = {}) {
+  const env = { FIXTURE_PROBE: probe };
+  if (extra.marker) env.FIXTURE_MARKER = extra.marker;
+  if (probe === "inflight_stall") env.FIXTURE_STALL_MS = "350";
+  const config = { ...overrides(probe, extra.limits ?? {}), ...(extra.resume_from_run ? { resume_from_run: extra.resume_from_run } : {}) };
+  return cliRun(project.root, ["mission", "run", project.mission, "--runtime", project.runtime, "--run-id", runId,
+    "--runtime-config-overrides", JSON.stringify(config)], env);
+}
+
+function facts(root, missionId, runId) {
+  const dir = path.join(root, ".harness", "missions", missionId, "runs", runId);
+  const control = JSON.parse(readFileSync(path.join(dir, "runtime-control.json"), "utf8"));
+  const result = YAML.parse(readFileSync(path.join(dir, "runtime-result.yaml"), "utf8"));
+  const recoveryPath = path.join(dir, "runtime-recovery.json");
+  const recovery = existsSync(recoveryPath) ? JSON.parse(readFileSync(recoveryPath, "utf8")) : undefined;
+  return { control, result, recovery };
+}
+
+function latestRun(root, missionId) {
+  const index = JSON.parse(readFileSync(path.join(root, ".harness", "missions", missionId, "runs", "index.json"), "utf8"));
+  return index.runs.at(-1);
+}
+
+async function launcherGone(project) {
+  const marker = path.join(project.root, "launcher.marker");
+  const child = spawn(process.execPath, [cli, "mission", "run", project.mission, "--runtime", "oh-my-pi", "--run-id", "launcher",
+    "--runtime-config-overrides", JSON.stringify(overrides("launcher_gone", { stall_timeout_ms: 2000 }))], {
+    cwd: project.root, env: { ...process.env, FIXTURE_PROBE: "launcher_gone", FIXTURE_MARKER: marker }, stdio: ["ignore", "pipe", "pipe"], windowsHide: true,
+  });
+  for (let i = 0; i < 100 && !existsSync(marker); i++) await new Promise(resolve => setTimeout(resolve, 50));
+  if (!existsSync(marker)) { child.kill("SIGKILL"); throw new Error("launcher marker was not written"); }
+  child.kill("SIGKILL");
+  await once(child, "close");
+  for (let i = 0; i < 40; i++) {
+    const control = JSON.parse(readFileSync(path.join(project.root, ".harness", "missions", "launcher_gone", "runs", "launcher", "runtime-control.json"), "utf8"));
+    if (control.stop_code) break;
+    await new Promise(resolve => setTimeout(resolve, 25));
+  }
+  const firstControl = JSON.parse(readFileSync(path.join(project.root, ".harness", "missions", "launcher_gone", "runs", "launcher", "runtime-control.json"), "utf8"));
+  runAttempt(project, "launcher_gone", "resumed", { resume_from_run: "launcher" });
+  const first = { control: firstControl };
+  const second = facts(project.root, "launcher_gone", latestRun(project.root, "launcher_gone").run_id);
+  return { ok: first.control.stop_code === "controller_lost" && second.result.status === "passed", detail: `${first.control.stop_code} -> ${second.result.status}` };
+}
+
+async function runProbe(probe) {
+  const project = setup(probe, probe);
+  if (probe === "preflight_fail") {
+    const marker = path.join(project.root, "preflight.marker");
+    const result = cliRun(project.root, ["mission", "run", project.mission, "--runtime", project.runtime, "--runtime-config-overrides", JSON.stringify({})], { FIXTURE_PROBE: probe, FIXTURE_START_MARKER: marker });
+    return { ok: result.status !== 0 && /runtime preflight failed/i.test(result.stderr) && !existsSync(marker), detail: `exit=${result.status}` };
+  }
+  if (probe === "launcher_gone") return launcherGone(project);
+  const first = runAttempt(project, probe, "initial", probe === "inflight_stall" ? { limits: { stall_timeout_ms: 100 } } : {});
+  if (!existsSync(path.join(project.root, ".harness", "missions", probe, "runs", "initial", "runtime-control.json"))) throw new Error(`initial run missing (exit=${first.status}) stderr=${first.stderr} stdout=${first.stdout}`);
+  const firstFacts = facts(project.root, probe, "initial");
+  const latest = latestRun(project.root, probe);
+  const recovery = latest.run_id !== "initial" ? facts(project.root, probe, latest.run_id) : undefined;
+  let ok = false;
+  if (probe === "denials_budget") ok = firstFacts.control.stop_code === "denial_budget" && /write_file out\/c\.txt/.test(firstFacts.control.stop_reason) && recovery?.result.status === "passed" && (recovery.recovery?.notes.match(/You were stopped:/g)?.length ?? 0) === 1;
+  if (probe === "cc_denials_budget") ok = firstFacts.control.stop_code === "denial_budget" && /write_file out\/c\.txt/.test(firstFacts.control.stop_reason) && recovery?.result.status === "passed";
+  if (probe === "fails3") ok = firstFacts.control.stop_code === "repeated_failure" && /python out\/missing_script\.py/.test(firstFacts.control.stop_reason) && recovery?.result.status === "passed";
+  if (probe === "inflight_stall") ok = first.status === 0 && firstFacts.result.status === "passed" && latest.run_id === "initial";
+  if (probe === "stall") ok = firstFacts.control.stop_code === "stall" && recovery?.result.status === "passed";
+  if (probe === "turncap") ok = first.status !== 0 && firstFacts.control.stop_code === "turn_limit" && latest.run_id === "initial";
+  if (probe === "deadline_grace") {
+    const reportPath = path.join(project.root, "out", "REPORT.md");
+    const report = existsSync(reportPath) ? readFileSync(reportPath, "utf8") : "";
+    ok = firstFacts.control.stop_code === "deadline" &&
+      /remaining for grace/.test(firstFacts.control.stop_reason ?? "") &&
+      latest.run_id !== "initial" &&
+      recovery?.result.status === "passed" &&
+      recovery.result.completion === "incomplete" &&
+      typeof recovery.result.incomplete_reason === "string" &&
+      recovery.recovery?.grace === true &&
+      report.startsWith("INCOMPLETE") &&
+      /Missing for the next step/.test(report);
+  }
+  if (probe === "tamper" || probe === "tamper_absolute" || probe === "cc_tamper" || probe === "cmdc_shell_mutation") ok = first.status !== 0 && firstFacts.control.stop_code === "policy" && /\.harness[\\/]/.test(firstFacts.control.stop_reason) && latest.run_id === "initial";
+  return { ok, detail: `exit=${first.status}, stop=${firstFacts.control.stop_code ?? "none"}, runs=${latest.run_id}${recovery ? `, recovery=${recovery.result.status}` : ""}` };
+}
+
+let failures = 0;
+for (const probe of process.argv.slice(2).length ? process.argv.slice(2) : probes) {
+  try {
+    const result = await runProbe(probe);
+    console.log(`${result.ok ? "PASS" : "FAIL"} ${probe}: ${result.detail}`);
+    if (!result.ok) failures++;
+  } catch (error) {
+    console.log(`FAIL ${probe}: ${(error instanceof Error ? error.message : error)}`);
+    failures++;
+  }
+}
+process.exit(failures ? 1 : 0);
diff --git a/scripts/smoke/tool-guard/run.mjs b/scripts/smoke/tool-guard/run.mjs
new file mode 100644
index 0000000..3dc3ecc
--- /dev/null
+++ b/scripts/smoke/tool-guard/run.mjs
@@ -0,0 +1,32 @@
+import { mkdtempSync, writeFileSync, readFileSync, existsSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { spawnSync } from "node:child_process";
+import { fileURLToPath, pathToFileURL } from "node:url";
+const repo = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../../..");
+const base = mkdtempSync(path.join(tmpdir(), "uh-tool-guard-"));
+const policyPath = path.join(base, "tool-guard.json");
+const logPath = path.join(base, "tool-guard.log");
+writeFileSync(policyPath, JSON.stringify({
+  schema_version: "uh.tool-guard.v0", write_roots: ["out"], deny_git_mutations: true,
+  deny_package_installs: true, deny_network_clients: true, agent_clients: ["omp"], worker_root: base,
+  protected_paths: [".harness", ".commandcode", ".omp", ".pi", ".git"],
+}));
+const env = { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+const hook = path.join(repo, "dist", "extensions", "tool-guard", "cmdc-hook.js");
+function run(input) {
+  return spawnSync(process.execPath, [hook], { cwd: base, env, input: JSON.stringify(input), encoding: "utf8" });
+}
+const denied = run({ tool_name: "shell_command", tool_input: { command: "git commit -am x" } });
+const allowed = run({ tool_name: "shell_command", tool_input: { command: "git status T:/forbidden" } });
+if (denied.status !== 0 || !denied.stdout.includes('"permissionDecision":"deny"')) throw new Error("Command Code hook did not deny git mutation");
+if (allowed.status !== 0 || allowed.stdout) throw new Error("Command Code hook denied read-only git");
+process.env.UH_TOOL_GUARD_POLICY = policyPath;
+process.env.UH_TOOL_GUARD_LOG = logPath;
+const { default: extension } = await import(pathToFileURL(path.join(repo, "dist", "extensions", "tool-guard", "omp.js")).href);
+let callback;
+extension({ on(name, fn) { if (name === "tool_call") callback = fn; } });
+const blocked = await callback({ toolName: "write_file", input: { file_path: ".harness/x", content: "forbidden path in report" } });
+if (!blocked?.block || !blocked.reason.includes("Do not retry this by another route")) throw new Error("OMP extension did not block protected write");
+if (!existsSync(logPath) || readFileSync(logPath, "utf8").trim().split("\n").length !== 3 || !readFileSync(logPath, "utf8").includes('"class":"allow"')) throw new Error("Guard log did not contain denial and allow evidence");
+console.log("PASS tool-guard Command Code + OMP denials and log lines");
diff --git a/scripts/smoke/worker-contract/run.mjs b/scripts/smoke/worker-contract/run.mjs
new file mode 100644
index 0000000..c2ee9ec
--- /dev/null
+++ b/scripts/smoke/worker-contract/run.mjs
@@ -0,0 +1,92 @@
+// Worker-contract smoke through the built CLI. The fake OMP receives per-worker routes and writes alpha's output only.
+// Usage: node scripts/smoke/worker-contract/run.mjs
+import { execFileSync, spawnSync } from "node:child_process";
+import { mkdirSync, readFileSync, readdirSync, rmSync, writeFileSync, existsSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import YAML from "yaml";
+
+const here = path.dirname(fileURLToPath(import.meta.url));
+const repo = path.resolve(here, "..", "..", "..");
+const cli = path.join(repo, "dist", "cli.js");
+const fixture = path.resolve(repo, "scripts", "smoke", "resource-wave", "fake-omp.mjs").split(path.sep).join("/");
+const root = path.join(tmpdir(), "uh-worker-contract");
+rmSync(root, { recursive: true, force: true });
+mkdirSync(root, { recursive: true });
+execFileSync("git", ["init", "-q", "-b", "main"], { cwd: root });
+execFileSync("git", ["config", "user.email", "smoke@example.invalid"], { cwd: root });
+execFileSync("git", ["config", "user.name", "smoke"], { cwd: root });
+if (spawnSync(process.execPath, [cli, "init"], { cwd: root, encoding: "utf8" }).status !== 0) throw new Error("uh init failed");
+if (spawnSync(process.execPath, [cli, "adapter", "add", "oh-my-pi", "--force"], { cwd: root, encoding: "utf8" }).status !== 0) throw new Error("uh adapter add failed");
+const manifest = path.join(root, ".harness", "adapters", "oh-my-pi.yaml");
+writeFileSync(manifest, readFileSync(manifest, "utf8")
+  .replace("cli_command: omp", `cli_command: ${fixture}`)
+  .replace('default_provider: ""', "default_provider: fixture")
+  .replace('default_model: ""', "default_model: fixture-model"));
+mkdirSync(path.join(root, ".harness", "missions", "contract"), { recursive: true });
+writeFileSync(path.join(root, ".harness", "missions", "contract", "mission.yaml"), `schema_version: uh.mission.v0
+id: contract
+title: Worker contract smoke
+workflow_profile: spec-first-feature
+objective: Complete the team objective
+shape: team
+team:
+  workers:
+    - role: alpha
+      adapter: oh-my-pi
+      objective: Produce alpha's answer
+      runtime_config_overrides:
+        model: fixture/model-a
+      limits:
+        max_turns: 3
+      expected_outputs:
+        files:
+          - out/answer-alpha.txt
+    - role: beta
+      adapter: oh-my-pi
+      runtime_config_overrides:
+        model: fixture/model-b
+      limits:
+        max_turns: 7
+      expected_outputs:
+        files:
+          - out/report.md
+  leader:
+    adapter: oh-my-pi
+verification:
+  required_checks:
+    - name: noop
+      command: node -e "process.exit(0)"
+`);
+writeFileSync(path.join(root, "README.md"), "smoke\n");
+execFileSync("git", ["add", "-A"], { cwd: root });
+execFileSync("git", ["commit", "-qm", "smoke project"], { cwd: root });
+const result = spawnSync(process.execPath, [cli, "mission", "run-team", "contract", "--retain"], { cwd: root, encoding: "utf8" });
+const runsDir = path.join(root, ".harness", "missions", "contract", "runs");
+let state = null;
+if (existsSync(runsDir)) {
+  const id = readdirSync(runsDir).find((entry) => existsSync(path.join(runsDir, entry, "team-state.json")));
+  if (id) state = JSON.parse(readFileSync(path.join(runsDir, id, "team-state.json"), "utf8"));
+}
+const worker = (id) => state?.workers.find((item) => item.id === id);
+const runtimeResult = (item) => item?.runtime_result_path ? YAML.parse(readFileSync(path.join(root, item.runtime_result_path), "utf8")) : null;
+const alpha = worker("alpha");
+const beta = worker("beta");
+const checks = [
+  state?.status === "passed_partial",
+  alpha?.status === "succeeded" && alpha.outputs?.[0]?.status === "passed",
+  beta?.status === "blocked" && /out\/report\.md/.test(beta.blocked_reason ?? ""),
+  alpha?.contract?.limits?.max_turns === 3 && beta?.contract?.limits?.max_turns === 7,
+  runtimeResult(alpha)?.model === "model-a" && runtimeResult(beta)?.model === "model-b",
+];
+const ok = result.status === 0 && checks.every(Boolean);
+console.log(`${ok ? "PASS" : "FAIL"} worker contract: exit=${result.status} status=${state?.status ?? "missing"}`);
+console.log(`       workers=${JSON.stringify(state?.workers?.map((item) => [item.id, item.status, item.blocked_reason ?? null]) ?? [])}`);
+console.log(`       models=${JSON.stringify([runtimeResult(alpha)?.model, runtimeResult(beta)?.model])}`);
+console.log(`       project retained at ${root}`);
+if (!ok) {
+  console.error(result.stdout);
+  console.error(result.stderr);
+  process.exit(1);
+}
diff --git a/src/adapters/_artifact-context.ts b/src/adapters/_artifact-context.ts
index bdf5939..533d08b 100644
--- a/src/adapters/_artifact-context.ts
+++ b/src/adapters/_artifact-context.ts
@@ -112,19 +112,21 @@ export async function getMissionArtifactContext(
 }
 
 /**
- * Guard before writing/overwriting an artifact: the target must be inside the
- * mission directory and must not be a symlink (refuse to follow it).
+ * Guard before writing/overwriting an artifact: reject symlinks at the target
+ * and every ancestor through the owning .harness directory.
  */
 export async function assertWritableArtifact(missionDir: string, artifactPath: string): Promise<void> {
   assertPathInsideMissionDir(missionDir, artifactPath);
-  try {
-    const stat = await lstat(artifactPath);
-    if (stat.isSymbolicLink()) {
-      throw new Error(`Refusing to overwrite symlinked artifact: ${artifactPath}`);
+  const boundary = path.resolve(missionDir, "..", "..");
+  for (let candidate = path.resolve(artifactPath); ; candidate = path.dirname(candidate)) {
+    try {
+      if ((await lstat(candidate)).isSymbolicLink()) {
+        throw new Error(`Refusing to overwrite symlinked artifact: ${candidate}`);
+      }
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
     }
-  } catch (err) {
-    if ((err as NodeJS.ErrnoException).code === "ENOENT") return;
-    throw err;
+    if (path.relative(boundary, candidate) === "") return;
   }
 }
 
diff --git a/src/adapters/acp.ts b/src/adapters/acp.ts
new file mode 100644
index 0000000..912ab39
--- /dev/null
+++ b/src/adapters/acp.ts
@@ -0,0 +1,707 @@
+import { execFile, spawn, type ChildProcess } from "node:child_process";
+import { readFile } from "node:fs/promises";
+import path from "node:path";
+import { promisify } from "node:util";
+import { parse, stringify } from "yaml";
+import { validateMission } from "../schema/mission.js";
+import { validateWorkflow } from "../schema/workflow.js";
+import { runtimeRegistry } from "../harness/registry.js";
+import { resolveRuntimeCommand } from "../harness/runtime-command.js";
+import {
+  AcpRuntimeConfigSchema,
+  AcpInitializeResultSchema,
+  AcpSessionNewResultSchema,
+  AcpSessionPromptResultSchema,
+  AcpSessionUpdateSchema,
+  AcpContentBlockSchema,
+  AcpClientInfoSchema,
+  AcpJsonRpcRequestSchema,
+  AcpJsonRpcNotificationSchema,
+  AcpJsonRpcResponseSchema,
+  type AcpRuntimeConfig,
+  type AcpInitializeResult,
+  type AcpSessionNewResult,
+  type AcpSessionPromptResult,
+} from "../schema/acp.js";
+import { registerRuntimeConfigSchema } from "../schema/adapter.js";
+import { renderPrompt } from "../harness/render-prompt.js";
+import { buildDispatchContext } from "../harness/dispatch-context.js";
+import { mergeRuntimeConfigOverrides } from "../harness/runtime-config-overrides.js";
+import { claimRuntimeAttempt } from "../harness/runtime-attempt.js";
+import { extractRuntimeFinalMessageSentinel } from "../harness/runtime-final-message.js";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
+import {
+  appendRunsIndexEntry,
+  generateRunId,
+  mirrorRuntimeResultToLatest,
+  writeLatestPointer,
+} from "../harness/run-id.js";
+import { captureDiffWithUntracked } from "../harness/diff-capture.js";
+import {
+  validateRuntimeResult,
+  type RuntimeResultDocument,
+  type RuntimeResultStatus,
+} from "../schema/artifacts.js";
+import type { RuntimeUsage } from "../harness/usage.js";
+import {
+  appendMissionEvent,
+  getMissionArtifactContext,
+  persistPromptAndSession,
+  writeArtifactFile,
+} from "./_artifact-context.js";
+
+const execFileAsync = promisify(execFile);
+
+registerRuntimeConfigSchema("acp", AcpRuntimeConfigSchema);
+
+/** Client identity advertised during ACP `initialize`. */
+export const ACP_CLIENT_NAME = "ultimate-harness";
+export const ACP_CLIENT_VERSION = "0.11.0";
+
+const JSONRPC_METHOD_NOT_FOUND = -32601;
+const JSONRPC_INTERNAL_ERROR = -32603;
+
+/** Outcome of an agent→client `session/request_permission` request. */
+type AcpPermissionOutcome = { outcome: "selected"; optionId: string } | { outcome: "cancelled" };
+
+type PendingRequest = {
+  resolve: (value: unknown) => void;
+  reject: (error: Error) => void;
+  method: string;
+  timer?: NodeJS.Timeout;
+};
+
+export interface AcpClientOptions {
+  /** Per-request timeout in milliseconds; `0` disables the timer. */
+  timeoutMs?: number;
+  cancellationSignal?: AbortSignal;
+  /** Called for every inbound notification (method with no id). */
+  onNotification?: (method: string, params: Record<string, unknown>) => void;
+  /** Called for every inbound agent→client request. Return a result, or `undefined` to fall back. */
+  onServerRequest?: (method: string, params: Record<string, unknown>) => unknown | Promise<unknown>;
+  /** Called for every parsed inbound JSON-RPC message (transcript capture). */
+  onMessage?: (message: Record<string, unknown>) => void;
+  /** Called with raw stderr chunks from the agent process. */
+  onStderr?: (chunk: string) => void;
+}
+
+/**
+ * JSON-RPC 2.0 stdio client for ACP agent servers.
+ *
+ * Owns framing (partial-buffer reassembly), request/response correlation with
+ * per-request timeouts, cancellation, and — critically — answering the agent's
+ * own requests so a compliant agent never blocks on a permission or filesystem
+ * prompt. The transport is injectable via subclassing (`writeMessage`,
+ * `start`, `stop`) so the framing and lifecycle can be unit-tested without a
+ * real server process.
+ */
+export class AcpClient {
+  protected child: ChildProcess | null = null;
+  /** True once `start()` has wired the transport; overridable for tests. */
+  protected connected = false;
+  private requestId = 1;
+  private pending = new Map<number, PendingRequest>();
+  private buffer = "";
+  private stopped = false;
+  protected readonly timeoutMs: number;
+  protected readonly cancellationSignal?: AbortSignal;
+  protected readonly onMessageHandler?: (message: Record<string, unknown>) => void;
+  protected readonly onStderrHandler?: (chunk: string) => void;
+  protected onNotificationHandler?: (method: string, params: Record<string, unknown>) => void;
+  protected onServerRequestHandler?: (method: string, params: Record<string, unknown>) => unknown | Promise<unknown>;
+  protected abortListener?: () => void;
+
+  constructor(
+    private command: string,
+    private args: string[],
+    private cwd: string,
+    private env: NodeJS.ProcessEnv = process.env,
+    options: AcpClientOptions = {},
+  ) {
+    this.timeoutMs = options.timeoutMs ?? 600_000;
+    this.cancellationSignal = options.cancellationSignal;
+    this.onNotificationHandler = options.onNotification;
+    this.onServerRequestHandler = options.onServerRequest;
+    this.onMessageHandler = options.onMessage;
+    this.onStderrHandler = options.onStderr;
+  }
+
+  public onNotification(handler: (method: string, params: Record<string, unknown>) => void): void {
+    this.onNotificationHandler = handler;
+  }
+
+  public onServerRequest(
+    handler: (method: string, params: Record<string, unknown>) => unknown | Promise<unknown>,
+  ): void {
+    this.onServerRequestHandler = handler;
+  }
+
+  public isRunning(): boolean {
+    return this.connected;
+  }
+
+  public async start(): Promise<void> {
+    this.child = spawn(this.command, this.args, {
+      cwd: this.cwd,
+      env: this.env,
+      stdio: ["pipe", "pipe", "pipe"],
+      // A process group leader on POSIX lets us signal the whole tree.
+      detached: process.platform !== "win32",
+      windowsHide: true,
+    });
+    this.connected = true;
+
+    this.child.stdout?.on("data", (chunk: Buffer) => this.handleChunk(chunk));
+    this.child.stderr?.on("data", (chunk: Buffer) => this.onStderrHandler?.(chunk.toString("utf8")));
+
+    this.child.on("error", (error) => {
+      this.connected = false;
+      this.rejectAll(error);
+    });
+    this.child.on("exit", (code, signal) => {
+      this.connected = false;
+      if (!this.stopped) {
+        this.rejectAll(new Error(`ACP server process exited prematurely with code ${code ?? signal ?? "unknown"}`));
+      }
+    });
+
+    if (this.cancellationSignal) {
+      this.abortListener = () => {
+        this.rejectAll(new Error("ACP client cancelled"));
+      };
+      if (this.cancellationSignal.aborted) this.abortListener();
+      else this.cancellationSignal.addEventListener("abort", this.abortListener, { once: true });
+    }
+  }
+
+  /** Feed raw bytes from the server; reassembles partial lines. Public for testing. */
+  public handleChunk(chunk: Buffer | string): void {
+    this.buffer += chunk.toString("utf8");
+    const lines = this.buffer.split(/\r?\n/);
+    this.buffer = lines.pop() ?? "";
+    for (const line of lines) {
+      const trimmed = line.trim();
+      if (trimmed) this.dispatchLine(trimmed);
+    }
+  }
+
+  private dispatchLine(line: string): void {
+    let raw: unknown;
+    try {
+      raw = JSON.parse(line);
+    } catch {
+      // Non-JSON or truncated framing is not fatal; the agent may recover.
+      return;
+    }
+    if (!raw || typeof raw !== "object" || Array.isArray(raw)) return;
+    const message = raw as Record<string, unknown>;
+    this.onMessageHandler?.(message);
+
+    // Agent→client request: has both a method and an id.
+    const request = AcpJsonRpcRequestSchema.safeParse(message);
+    if (request.success) {
+      void this.handleServerRequest(request.data.id, request.data.method, request.data.params ?? {});
+      return;
+    }
+    // Inbound notification: a method with no id.
+    const notification = AcpJsonRpcNotificationSchema.safeParse(message);
+    if (notification.success) {
+      this.onNotificationHandler?.(notification.data.method, notification.data.params ?? {});
+      return;
+    }
+    // Response to one of our requests.
+    if (message.id !== undefined && message.id !== null) this.settleResponse(message.id as number | string, message);
+  }
+
+  private settleResponse(id: number | string, message: Record<string, unknown>): void {
+    const entry = this.pending.get(id as number);
+    if (!entry) return;
+    this.pending.delete(id as number);
+    if (entry.timer) clearTimeout(entry.timer);
+
+    const parsed = AcpJsonRpcResponseSchema.safeParse(message);
+    if (!parsed.success) {
+      entry.reject(new Error(`ACP returned a malformed JSON-RPC response for ${entry.method}`));
+      return;
+    }
+    if (parsed.data.error) {
+      entry.reject(new Error(`ACP error ${parsed.data.error.code}: ${parsed.data.error.message}`));
+      return;
+    }
+    entry.resolve(parsed.data.result);
+  }
+
+  private async handleServerRequest(id: number | string, method: string, params: Record<string, unknown>): Promise<void> {
+    try {
+      let result = this.onServerRequestHandler ? await this.onServerRequestHandler(method, params) : undefined;
+      if (result === undefined) result = this.defaultServerResponse(method, params);
+      if (result === undefined) {
+        this.writeMessage({
+          jsonrpc: "2.0",
+          id,
+          error: { code: JSONRPC_METHOD_NOT_FOUND, message: `Method not found: ${method}` },
+        });
+      } else {
+        this.writeMessage({ jsonrpc: "2.0", id, result });
+      }
+    } catch (error) {
+      this.writeMessage({
+        jsonrpc: "2.0",
+        id,
+        error: { code: JSONRPC_INTERNAL_ERROR, message: (error as Error).message },
+      });
+    }
+  }
+
+  /**
+   * Built-in answers for the agent→client requests a headless harness can
+   * service. `session/request_permission` selects an auto-approvable option
+   * when the agent offers one; everything else returns `undefined` so the
+   * client replies `-32601` instead of leaving the agent blocked.
+   */
+  private defaultServerResponse(method: string, params: Record<string, unknown>): unknown {
+    if (method === "session/request_permission") {
+      const outcome = this.selectPermission(params);
+      return { outcome };
+    }
+    return undefined;
+  }
+
+  private selectPermission(params: Record<string, unknown>): AcpPermissionOutcome {
+    const options = Array.isArray(params.options) ? params.options : [];
+    for (const option of options) {
+      if (!option || typeof option !== "object") continue;
+      const record = option as Record<string, unknown>;
+      const kind = record.kind;
+      if ((kind === "allow_once" || kind === "allow_always") && typeof record.optionId === "string") {
+        return { outcome: "selected", optionId: record.optionId };
+      }
+    }
+    return { outcome: "cancelled" };
+  }
+
+  public request<T = unknown>(method: string, params?: Record<string, unknown>): Promise<T> {
+    if (!this.connected) {
+      return Promise.reject(new Error("ACP client is not running or stdin is closed"));
+    }
+    const id = this.requestId++;
+    return new Promise<T>((resolve, reject) => {
+      const entry: PendingRequest = { resolve: resolve as (value: unknown) => void, reject, method };
+      if (this.timeoutMs > 0) {
+        entry.timer = setTimeout(() => {
+          if (this.pending.delete(id)) reject(new Error(`ACP ${method} request timed out after ${this.timeoutMs}ms`));
+        }, this.timeoutMs);
+        entry.timer.unref?.();
+      }
+      this.pending.set(id, entry);
+      try {
+        this.writeMessage({ jsonrpc: "2.0", id, method, params: params ?? {} });
+      } catch (error) {
+        this.pending.delete(id);
+        if (entry.timer) clearTimeout(entry.timer);
+        reject(error as Error);
+      }
+    });
+  }
+
+  /** Write one JSON-RPC message as a newline-delimited frame. Overridable for tests. */
+  protected writeMessage(message: Record<string, unknown>): void {
+    if (!this.child?.stdin || this.child.stdin.destroyed) {
+      throw new Error("ACP client stdin is closed");
+    }
+    this.child.stdin.write(`${JSON.stringify(message)}\n`, "utf8");
+  }
+
+  protected rejectAll(error: Error): void {
+    for (const entry of this.pending.values()) {
+      if (entry.timer) clearTimeout(entry.timer);
+      entry.reject(error);
+    }
+    this.pending.clear();
+  }
+
+  /** Stop the client and terminate the agent process tree (SIGTERM → SIGKILL). */
+  public async stop(): Promise<void> {
+    this.stopped = true;
+    this.connected = false;
+    if (this.abortListener && this.cancellationSignal) {
+      this.cancellationSignal.removeEventListener("abort", this.abortListener);
+    }
+    this.rejectAll(new Error("ACP client stopped"));
+    const child = this.child;
+    this.child = null;
+    if (!child) return;
+    await terminateProcessTree(child);
+  }
+}
+
+/** Wait for a child to exit, or resolve after `timeoutMs`. */
+function waitForExit(child: ChildProcess, timeoutMs: number): Promise<void> {
+  if (child.exitCode !== null || child.signalCode !== null) return Promise.resolve();
+  return new Promise((resolve) => {
+    const finish = (): void => {
+      clearTimeout(timer);
+      child.removeListener("exit", finish);
+      resolve();
+    };
+    const timer = setTimeout(finish, timeoutMs);
+    child.once("exit", finish);
+  });
+}
+
+/** Terminate a spawned process and its descendants, escalating to SIGKILL. */
+async function terminateProcessTree(child: ChildProcess): Promise<void> {
+  if (!child.pid || child.exitCode !== null) return;
+  if (process.platform === "win32") {
+    await new Promise<void>((resolve) => {
+      execFile("taskkill", ["/pid", String(child.pid), "/T", "/F"], { windowsHide: true }, () => resolve());
+    });
+    return;
+  }
+  const signalGroup = (signal: NodeJS.Signals): void => {
+    try {
+      process.kill(-child.pid!, signal);
+    } catch {
+      try { child.kill(signal); } catch { /* already gone */ }
+    }
+  };
+  signalGroup("SIGTERM");
+  await waitForExit(child, 2000);
+  if (child.exitCode === null && child.signalCode === null) signalGroup("SIGKILL");
+}
+
+function record(value: unknown): Record<string, unknown> | undefined {
+  return value && typeof value === "object" && !Array.isArray(value) ? (value as Record<string, unknown>) : undefined;
+}
+
+/** Extract streamed agent text from a `session/update` notification. */
+export function extractAcpAgentText(params: Record<string, unknown>): string {
+  const parsed = AcpSessionUpdateSchema.safeParse(params);
+  if (!parsed.success) return "";
+  const update = record(parsed.data.update);
+  if (!update || update.sessionUpdate !== "agent_message_chunk") return "";
+  const content = record(update.content);
+  return typeof content?.text === "string" ? content.text : "";
+}
+
+function mapAcpUsage(source: unknown, model?: string): RuntimeUsage | undefined {
+  const usageRecord = record(source);
+  if (!usageRecord) return undefined;
+  const usage: RuntimeUsage = { source: "runtime" };
+  if (typeof usageRecord.inputTokens === "number") usage.input_tokens = usageRecord.inputTokens;
+  if (typeof usageRecord.outputTokens === "number") usage.output_tokens = usageRecord.outputTokens;
+  if (typeof usageRecord.totalTokens === "number") usage.total_tokens = usageRecord.totalTokens;
+  if (model) usage.model = model;
+  return usage;
+}
+
+/**
+ * Probe the configured ACP agent binary. A protocol version alone is not
+ * evidence the server is installed, so unlike a schema-only check this actually
+ * executes the command with `--version`.
+ */
+export async function checkAcp(manifest?: { config?: { cli_command?: string; runtime_config?: unknown } }) {
+  let config: AcpRuntimeConfig;
+  try {
+    config = AcpRuntimeConfigSchema.parse(manifest?.config?.runtime_config);
+  } catch (error) {
+    return { runtime: "acp", found: false, version: "", errors: [(error as Error).message] };
+  }
+  const command = manifest?.config?.cli_command || config.server_command;
+  try {
+    const resolved = await resolveRuntimeCommand(command, [...config.server_args, "--version"], process.env);
+    const result = await execFileAsync(resolved.command, resolved.args, { timeout: 15_000, windowsHide: true });
+    return { runtime: "acp", found: true, version: (result.stdout || result.stderr).trim(), errors: [] };
+  } catch (error) {
+    return {
+      runtime: "acp",
+      found: false,
+      version: "",
+      errors: [`ACP server "${command}" could not be executed: ${(error as Error).message}`],
+    };
+  }
+}
+
+runtimeRegistry.register("acp", checkAcp);
+
+export async function planAcpRun(
+  root: string,
+  missionPath: string,
+  options: { extraRuntimeConfigOverrides?: Record<string, unknown>; artifactRoot?: string } = {},
+) {
+  const mission = validateMission(parse(await readFile(missionPath, "utf8")));
+  const adapterDoc = (await runtimeRegistry.load(root, "acp")).document;
+  const config = AcpRuntimeConfigSchema.parse({
+    ...adapterDoc.config?.runtime_config,
+    ...mergeRuntimeConfigOverrides(mission, options.extraRuntimeConfigOverrides),
+  });
+
+  const workflow = validateWorkflow(
+    parse(await readFile(path.join(root, ".harness", "workflows", `${mission.workflow_profile}.yaml`), "utf8")),
+  );
+  const prompt = renderPrompt(buildDispatchContext(mission, workflow));
+
+  return {
+    command: config.server_command,
+    args: config.server_args,
+    prompt,
+    mission,
+    config,
+    worktree: false,
+    session_id_passthrough: false,
+    errors: [] as string[],
+  };
+}
+
+export async function dryRunAcp(
+  root: string,
+  missionPath: string,
+  options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {},
+) {
+  const plan = await planAcpRun(root, missionPath, options);
+  const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
+  if (artifacts) {
+    await persistPromptAndSession(artifacts, plan.prompt, {
+      schema_version: "uh.runtime-session.v0",
+      mission_id: plan.mission.id,
+      runtime: "acp",
+      status: "planned",
+      command: plan.command,
+      args: plan.args,
+    });
+  }
+  return plan;
+}
+
+export interface AcpRunOptions {
+  artifactRoot?: string;
+  runId?: string;
+  /** Overrides the adapter's `runtime_config.timeout_ms` for every request. */
+  timeoutMs?: number;
+  cancellationSignal?: AbortSignal;
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
+  collectDiff?: (cwd: string) => Promise<{ patch: string; errors?: string[] }>;
+  clientFactory?: (command: string, args: string[], cwd: string, options: AcpClientOptions) => AcpClient;
+}
+
+export interface AcpRunResult {
+  exitCode: number;
+  stdout: string;
+  stderr: string;
+  runId: string;
+  result: RuntimeResultDocument;
+}
+
+export async function runAcp(root: string, missionPath: string, options: AcpRunOptions = {}): Promise<AcpRunResult> {
+  const plan = await planAcpRun(root, missionPath, options);
+  const runId = options.runId ?? generateRunId();
+  const canonical = options.artifactRoot ?? root;
+  const artifacts = await getMissionArtifactContext(canonical, missionPath, runId);
+  if (artifacts) await claimRuntimeAttempt(artifacts);
+
+  const timeoutMs = options.timeoutMs ?? plan.config.timeout_ms;
+  const startedAt = new Date().toISOString();
+
+  if (artifacts) {
+    await persistPromptAndSession(artifacts, plan.prompt, {
+      schema_version: "uh.runtime-session.v0",
+      mission_id: plan.mission.id,
+      runtime: "acp",
+      status: "running",
+      command: plan.command,
+      args: plan.args,
+      started_at: startedAt,
+    });
+    await appendRunsIndexEntry(canonical, plan.mission.id, {
+      run_id: runId,
+      started_at: startedAt,
+      status: "running",
+      runtime: "acp",
+    });
+    await writeLatestPointer(canonical, plan.mission.id, {
+      schema_version: "uh.latest-run.v0",
+      run_id: runId,
+      started_at: startedAt,
+      status: "running",
+    });
+    await appendMissionEvent(artifacts, {
+      event: "runtime.started",
+      runtime: "acp",
+      mission_id: plan.mission.id,
+      run_id: runId,
+      timestamp: startedAt,
+    });
+  }
+
+  const serverMessages: Record<string, unknown>[] = [];
+  const stderrChunks: string[] = [];
+  let agentText = "";
+
+  let eventWrites: Promise<void> = Promise.resolve();
+  const clientOptions: AcpClientOptions = {
+    timeoutMs,
+    cancellationSignal: options.cancellationSignal,
+    onMessage: (message) => serverMessages.push(message),
+    onStderr: (chunk) => stderrChunks.push(chunk),
+    onNotification: (method, params) => {
+      const eventRecord = { event: `acp.${method}`, timestamp: new Date().toISOString(), ...params };
+      if (method === "session/update") agentText += extractAcpAgentText(params);
+      if (artifacts) {
+        // Serialize appends so failures never surface as unhandled rejections.
+        eventWrites = eventWrites.then(() => appendMissionEvent(artifacts, eventRecord)).catch(() => {});
+      }
+    },
+  };
+
+  const client = options.clientFactory
+    ? options.clientFactory(plan.command, plan.args, root, clientOptions)
+    : new AcpClient(plan.command, plan.args, root, process.env, clientOptions);
+  if (options.clientFactory) {
+    // Factory-provided clients still need the handlers the adapter installed.
+    client.onNotification(clientOptions.onNotification!);
+    client.onServerRequest(clientOptions.onServerRequest ?? (() => undefined));
+  }
+
+  let status: RuntimeResultStatus = "failed";
+  let promptResult: AcpSessionPromptResult | null = null;
+  const errors: string[] = [];
+  let cancelled = false;
+
+  try {
+    await client.start();
+
+    const initResult = AcpInitializeResultSchema.parse(
+      await client.request<AcpInitializeResult>("initialize", {
+        protocolVersion: plan.config.protocol_version,
+        clientCapabilities: {},
+        clientInfo: AcpClientInfoSchema.parse({ name: ACP_CLIENT_NAME, version: ACP_CLIENT_VERSION }),
+      }),
+    );
+    if (artifacts) {
+      await appendMissionEvent(artifacts, {
+        event: "acp.initialized",
+        timestamp: new Date().toISOString(),
+        agent: initResult.agentInfo,
+      });
+    }
+
+    const sessionResult = AcpSessionNewResultSchema.parse(
+      await client.request<AcpSessionNewResult>("session/new", { cwd: root, mcpServers: [] }),
+    );
+
+    promptResult = AcpSessionPromptResultSchema.parse(
+      await client.request<AcpSessionPromptResult>("session/prompt", {
+        sessionId: sessionResult.sessionId,
+        prompt: [AcpContentBlockSchema.parse({ type: "text", text: plan.prompt })],
+      }),
+    );
+  } catch (error) {
+    if (options.cancellationSignal?.aborted) {
+      cancelled = true;
+      status = "cancelled";
+      errors.push("ACP run cancelled by the harness");
+    } else {
+      errors.push((error as Error).message);
+      status = "failed";
+    }
+  } finally {
+    await client.stop();
+    await eventWrites;
+  }
+
+  if (!cancelled && promptResult) {
+    if (promptResult.stopReason === "cancelled") {
+      status = "cancelled";
+      errors.push("ACP agent reported stopReason cancelled");
+    } else if (promptResult.stopReason === "refusal") {
+      status = "failed";
+      errors.push("ACP agent refused the prompt");
+    } else if (promptResult.stopReason === "max_tokens" || promptResult.stopReason === "max_turn_requests") {
+      status = "blocked";
+      errors.push(`ACP agent stopped early: ${promptResult.stopReason}`);
+    } else {
+      status = "passed";
+    }
+  }
+
+  const sentinel = extractRuntimeFinalMessageSentinel(agentText);
+  const finalMessage = sentinel ?? agentText;
+
+  let diff = { patch: "", errors: [] as string[] };
+  try {
+    const captured = await (options.collectDiff ?? captureDiffWithUntracked)(root);
+    diff = { patch: captured.patch, errors: captured.errors ?? [] };
+  } catch (error) {
+    diff.errors.push(`Diff capture failed: ${(error as Error).message}`);
+  }
+  errors.push(...diff.errors);
+
+  const stdout = serverMessages.map((message) => JSON.stringify(message)).join("\n");
+  const stderr = stderrChunks.join("");
+  const usage = mapAcpUsage(promptResult?.usage, plan.config.model);
+  const finishedAt = new Date().toISOString();
+  const exitCode = status === "passed" ? 0 : status === "cancelled" ? 130 : 1;
+
+  const result = validateRuntimeResult({
+    schema_version: "uh.runtime-result.v0",
+    mission_id: plan.mission.id,
+    runtime: "acp",
+    status,
+    started_at: startedAt,
+    finished_at: finishedAt,
+    exit_code: exitCode,
+    prompt_path: artifacts ? relativeArtifactPath(canonical, artifacts.promptPath) : "prompt.md",
+    stdout_path: artifacts ? relativeArtifactPath(canonical, artifacts.stdoutPath) : "runtime.stdout.log",
+    stderr_path: artifacts ? relativeArtifactPath(canonical, artifacts.stderrPath) : "runtime.stderr.log",
+    ...(artifacts ? { diff_path: relativeArtifactPath(canonical, artifacts.diffPath) } : {}),
+    errors,
+    ...(plan.config.model ? { model: plan.config.model } : {}),
+    ...(usage ? { usage } : {}),
+  });
+
+  if (artifacts) {
+    await writeArtifactFile(artifacts.missionDir, artifacts.stdoutPath, stdout);
+    await writeArtifactFile(artifacts.missionDir, artifacts.stderrPath, stderr);
+    await writeArtifactFile(artifacts.missionDir, artifacts.diffPath, diff.patch);
+    await writeArtifactFile(artifacts.missionDir, artifacts.finalMessagePath, finalMessage);
+    await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
+    await writeArtifactFile(artifacts.missionDir, artifacts.runtimeSessionPath, stringify({
+      schema_version: "uh.runtime-session.v0",
+      mission_id: plan.mission.id,
+      runtime: "acp",
+      status: status === "passed" ? "succeeded" : "failed",
+      command: plan.command,
+      args: plan.args,
+      exit_code: exitCode,
+      started_at: startedAt,
+      finished_at: finishedAt,
+      ...(plan.config.model ? { model: plan.config.model } : {}),
+      ...(usage ? { usage } : {}),
+    }));
+    await appendMissionEvent(artifacts, {
+      event: "runtime.finished",
+      runtime: "acp",
+      mission_id: plan.mission.id,
+      run_id: runId,
+      status,
+      timestamp: finishedAt,
+    });
+    await appendRunsIndexEntry(canonical, plan.mission.id, {
+      run_id: runId,
+      started_at: startedAt,
+      finished_at: finishedAt,
+      status,
+      runtime: "acp",
+    });
+    await writeLatestPointer(canonical, plan.mission.id, {
+      schema_version: "uh.latest-run.v0",
+      run_id: runId,
+      started_at: startedAt,
+      finished_at: finishedAt,
+      status,
+    });
+    await mirrorRuntimeResultToLatest(canonical, plan.mission.id, runId);
+  }
+
+  return { exitCode, stdout, stderr, runId, result };
+}
diff --git a/src/adapters/anthropic.ts b/src/adapters/anthropic.ts
index f5f3383..8536fb3 100644
--- a/src/adapters/anthropic.ts
+++ b/src/adapters/anthropic.ts
@@ -9,11 +9,12 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { MissionDocument, validateMission } from "../schema/mission.js";
 import { validateWorkflow, WorkflowDocument } from "../schema/workflow.js";
 import { auditLog, workflowsDir } from "../harness/paths.js";
-import { buildUsageEvent, estimateUsage, usageFromAnthropic } from "../harness/usage.js";
+import { buildUsageEvent, usageFromAnthropic } from "../harness/usage.js";
 import {
   appendRunsIndexEntry,
   generateRunId,
@@ -609,9 +610,9 @@ export const defaultDiffCollector: DiffCollector = async (cwd) => {
 
 // ---------- orchestrator ----------
 
-export async function dryRunAnthropic(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunAnthropic(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planAnthropicRun(root, missionPath);
+    const plan = await planAnthropicRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -849,6 +850,7 @@ export async function collectAnthropicSession(
       });
     }
 
+    const apiUsage = usageFromAnthropic(runnerResult.usage, runnerResult.usageModel);
     const draft: RuntimeResultDocument = {
       schema_version: "uh.runtime-result.v0",
       mission_id: plan.mission.id,
@@ -857,11 +859,13 @@ export async function collectAnthropicSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
+      ...(apiUsage ? { usage: apiUsage } : {}),
+      ...(runnerResult.usageModel ? { model: runnerResult.usageModel } : {}),
     };
     result = validateRuntimeResult(draft);
     await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
@@ -875,13 +879,12 @@ export async function collectAnthropicSession(
       exitCode === 0 ? "succeeded" : "failed",
     );
 
-    const apiUsage =
-      usageFromAnthropic(runnerResult.usage, runnerResult.usageModel) ??
-      estimateUsage(plan.prompt, sentinel);
-    await appendMissionEvent(
-      artifacts,
-      buildUsageEvent("anthropic", plan.mission.id, apiUsage, finishedAt),
-    );
+    if (apiUsage) {
+      await appendMissionEvent(
+        artifacts,
+        buildUsageEvent("anthropic", plan.mission.id, apiUsage, finishedAt),
+      );
+    }
   } catch (err) {
     const message = (err as Error).message;
     const separator = stderr && !stderr.endsWith("\n") ? "\n" : "";
diff --git a/src/adapters/capabilities/acp.ts b/src/adapters/capabilities/acp.ts
new file mode 100644
index 0000000..f6ddbfc
--- /dev/null
+++ b/src/adapters/capabilities/acp.ts
@@ -0,0 +1,16 @@
+import type { AdapterCapabilities } from "../../schema/adapter-capabilities.js";
+
+export const acpCapabilities = {
+  schema: "uh.adapter-capabilities.v0",
+  id: "acp",
+  display_name: "Agent-Client Protocol (ACP)",
+  tools: { shell: true, fs_read: true, fs_write: true, network: false,
+    custom: ["cli-execution", "non-interactive", "one-shot", "json-output", "diff-output"] },
+  sandbox: "none",
+  max_context_tokens: null,
+  cost_class: "standard",
+  supports_runtime_config_overrides: true,
+  supports_cancel: true,
+  supports_replay: false,
+  notes: "Bidirectional JSON-RPC 2.0 over stdio with any ACP-compliant agent server. Model and server command are explicit runtime configuration; the client answers the agent's fs/terminal/permission requests but is not an OS sandbox.",
+} as const satisfies AdapterCapabilities;
diff --git a/src/adapters/capabilities/claude-code.ts b/src/adapters/capabilities/claude-code.ts
new file mode 100644
index 0000000..6af398f
--- /dev/null
+++ b/src/adapters/capabilities/claude-code.ts
@@ -0,0 +1,16 @@
+import type { AdapterCapabilities } from "../../schema/adapter-capabilities.js";
+
+export const CLAUDE_CODE_CAPABILITIES = {
+  schema: "uh.adapter-capabilities.v0",
+  id: "claude-code",
+  display_name: "Claude Code",
+  tools: { shell: true, fs_read: true, fs_write: true, network: false,
+    custom: ["cli-execution", "non-interactive", "stream-json", "structured-events", "diff-output", "session-resume"] },
+  sandbox: "none",
+  max_context_tokens: null,
+  cost_class: "standard",
+  supports_runtime_config_overrides: true,
+  supports_cancel: true,
+  supports_replay: true,
+  notes: "Native Claude Code CLI stream-json execution with exact model routing, UH PreToolUse guard hooks, and native session recovery. The guard policy and process supervisor are not an OS sandbox.",
+} as const satisfies AdapterCapabilities;
diff --git a/src/adapters/capabilities/command-code.ts b/src/adapters/capabilities/command-code.ts
new file mode 100644
index 0000000..039a058
--- /dev/null
+++ b/src/adapters/capabilities/command-code.ts
@@ -0,0 +1,16 @@
+import type { AdapterCapabilities } from "../../schema/adapter-capabilities.js";
+
+export const commandCodeCapabilities = {
+  schema: "uh.adapter-capabilities.v0",
+  id: "command-code",
+  display_name: "Command Code",
+  tools: { shell: true, fs_read: true, fs_write: true, network: false,
+    custom: ["cli-execution", "json-output", "diff-output", "session-resume"] },
+  sandbox: "none",
+  max_context_tokens: null,
+  cost_class: "standard",
+  supports_runtime_config_overrides: true,
+  supports_cancel: true,
+  supports_replay: true,
+  notes: "Native Command Code JSON execution. Model and permission policy are explicit runtime configuration; workspace isolation is not an OS security boundary.",
+} as const satisfies AdapterCapabilities;
diff --git a/src/adapters/capabilities/index.ts b/src/adapters/capabilities/index.ts
index 5bb47d8..9a57026 100644
--- a/src/adapters/capabilities/index.ts
+++ b/src/adapters/capabilities/index.ts
@@ -10,7 +10,9 @@ import { hermesProxyCapabilities } from "./hermes-proxy.js";
 import { ohMyPiCapabilities } from "./oh-my-pi.js";
 import { openRouterCapabilities } from "./openrouter.js";
 import { piCapabilities } from "./pi.js";
-
+import { commandCodeCapabilities } from "./command-code.js";
+import { CLAUDE_CODE_CAPABILITIES } from "./claude-code.js";
+import { acpCapabilities } from "./acp.js";
 export type AdapterId = (typeof TEAM_ADAPTER_IDS)[number];
 
 export const CAPABILITIES: Record<AdapterId, AdapterCapabilities> = {
@@ -21,6 +23,9 @@ export const CAPABILITIES: Record<AdapterId, AdapterCapabilities> = {
   openrouter: openRouterCapabilities,
   anthropic: anthropicCapabilities,
   pi: piCapabilities,
+  "command-code": commandCodeCapabilities,
+  "claude-code": CLAUDE_CODE_CAPABILITIES,
+  acp: acpCapabilities,
 };
 
 export function getCapabilities(id: AdapterId): AdapterCapabilities {
@@ -36,4 +41,4 @@ export function parseCapabilitiesManifest(data: unknown): AdapterCapabilities {
   return AdapterCapabilitiesSchema.parse(data);
 }
 
-export { anthropicCapabilities, codexCapabilities, hermesCapabilities, hermesProxyCapabilities, ohMyPiCapabilities, openRouterCapabilities, piCapabilities };
+export { anthropicCapabilities, codexCapabilities, hermesCapabilities, hermesProxyCapabilities, ohMyPiCapabilities, openRouterCapabilities, piCapabilities, CLAUDE_CODE_CAPABILITIES, acpCapabilities };
diff --git a/src/adapters/capabilities/oh-my-pi.ts b/src/adapters/capabilities/oh-my-pi.ts
index c81393a..0209f38 100644
--- a/src/adapters/capabilities/oh-my-pi.ts
+++ b/src/adapters/capabilities/oh-my-pi.ts
@@ -12,7 +12,7 @@ export const ohMyPiCapabilities = {
     custom: ["cli-execution", "json-output", "diff-output"],
   },
   sandbox: "none",
-  max_context_tokens: 128_000,
+  max_context_tokens: null,
   cost_class: "standard",
   supports_runtime_config_overrides: true,
   supports_cancel: true,
diff --git a/src/adapters/claude-code.ts b/src/adapters/claude-code.ts
new file mode 100644
index 0000000..a4ebc2c
--- /dev/null
+++ b/src/adapters/claude-code.ts
@@ -0,0 +1,469 @@
+import { execFile } from "node:child_process";
+import { readFile, writeFile } from "node:fs/promises";
+import { promisify } from "node:util";
+import path from "node:path";
+import { parse, stringify } from "yaml";
+import { z } from "zod";
+import { registerRuntimeConfigSchema } from "../schema/adapter.js";
+import { validateMission, type MissionDocument } from "../schema/mission.js";
+import { validateWorkflow } from "../schema/workflow.js";
+import { RuntimePricingSchema, validateRuntimeResult, type RuntimeResultDocument } from "../schema/artifacts.js";
+import {
+  DEFAULT_PROTECTED_PATHS,
+  resolveToolGuardPolicy,
+  RuntimeLimitsSchema,
+  RuntimeRecoveryDeadlineSchema,
+  RuntimeRecoveryPolicySchema,
+  ToolGuardArtifactSchema,
+  type RuntimeLimits,
+  type ToolGuardPolicy,
+} from "../schema/runtime-control.js";
+import { aggregateRuntimeUsage, estimateConfiguredCost, usageFromAnthropic, type RuntimeUsage } from "../harness/usage.js";
+import { assertIndependentReviewExecution } from "../harness/independent-review-execution.js";
+import { claimRuntimeAttempt } from "../harness/runtime-attempt.js";
+import { prepareRuntimeResume, persistRuntimeRecovery, recoveryPrompt, type RuntimeResume } from "../harness/runtime-recovery.js";
+import { buildDispatchContext } from "../harness/dispatch-context.js";
+import { renderPrompt } from "../harness/render-prompt.js";
+import { mergeRuntimeConfigOverrides } from "../harness/runtime-config-overrides.js";
+import { runtimeRegistry } from "../harness/registry.js";
+import { resolveRuntimeCommand } from "../harness/runtime-command.js";
+import { runRuntimeProcess, type RuntimeProcessInput, type RuntimeProcessOutput } from "../harness/runtime-process.js";
+import { snapshotGuardHook } from "../harness/runtime-snapshot.js";
+import {
+  nativeRuntimeCompleted,
+  nativeRuntimeEvent,
+  nativeRuntimeRoute,
+  runtimeRouteMismatch,
+  runtimeTerminalFailure,
+} from "../harness/runtime-supervision.js";
+import { captureDiffWithUntracked, diffCaptureFailureRecord } from "../harness/diff-capture.js";
+import { extractRuntimeFinalMessageSentinel } from "../harness/runtime-final-message.js";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
+import { appendRunsIndexEntry, generateRunId, mirrorRuntimeResultToLatest, writeLatestPointer } from "../harness/run-id.js";
+import {
+  appendMissionEvent,
+  getMissionArtifactContext,
+  persistPromptAndSession,
+  writeArtifactFile,
+} from "./_artifact-context.js";
+
+const exec = promisify(execFile);
+export const DEFAULT_CLAUDE_CODE_MODEL = "claude-fable-5-1[1m]";
+const RESERVED_CLAUDE_FLAGS = new Set([
+  "-p", "--print", "--model", "--output-format", "--verbose", "--include-partial-messages",
+  "--permission-mode", "--settings", "--resume", "-r", "--continue", "-c", "--bare",
+  "--dangerously-skip-permissions", "--allow-dangerously-skip-permissions", "--allowedtools", "--allowed-tools",
+]);
+
+export const ClaudeCodeRuntimeConfigSchema = z.object({
+  model: z.string().min(1).default(DEFAULT_CLAUDE_CODE_MODEL),
+  cli_args: z.array(z.string()).default([]),
+  role: z.enum(["worker", "orchestrator"]).default("worker"),
+  effort: z.enum(["low", "medium", "high", "xhigh", "max", "ultracode"]).optional(),
+  permission_mode: z.enum(["default", "acceptEdits", "plan", "auto", "dontAsk", "manual"]).default("default"),
+  resume_session: z.string().min(1).optional(),
+  resume_from_run: z.string().min(1).optional(),
+  recovery_notes: z.string().min(1).optional(),
+  recovery: RuntimeRecoveryPolicySchema.optional(),
+  recovery_grace: z.boolean().default(false),
+  max_turns: z.number().int().positive().optional(),
+  limits: RuntimeLimitsSchema.optional(),
+  pricing: RuntimePricingSchema.optional(),
+}).strict().superRefine((config, ctx) => {
+  for (const arg of config.cli_args) {
+    const flag = arg.split("=", 1)[0].toLowerCase();
+    if (RESERVED_CLAUDE_FLAGS.has(flag) || flag === "--permission-prompts" || flag === "--max-turns") {
+      ctx.addIssue({ code: "custom", path: ["cli_args"], message: `Claude Code flag ${arg} is controlled by UH` });
+    }
+  }
+  if (config.permission_mode === "dontAsk" && config.role === "worker") {
+    ctx.addIssue({ code: "custom", path: ["permission_mode"], message: "Claude Code workers may not suppress permission prompts" });
+  }
+});
+export type ClaudeCodeRuntimeConfig = z.infer<typeof ClaudeCodeRuntimeConfigSchema>;
+export type ClaudeCodeRole = ClaudeCodeRuntimeConfig["role"];
+type ClaudeCodeDeadline = z.infer<typeof RuntimeRecoveryDeadlineSchema>;
+registerRuntimeConfigSchema("claude-code", ClaudeCodeRuntimeConfigSchema);
+
+runtimeRegistry.register("claude-code", async (manifest) => {
+  const config = ClaudeCodeRuntimeConfigSchema.parse(manifest.config?.runtime_config);
+  try {
+    const executable = await resolveRuntimeCommand(manifest.config?.cli_command || "claude", [...config.cli_args, "--version"]);
+    const result = await exec(executable.command, executable.args);
+    return { runtime: "claude-code", found: true, version: result.stdout.trim() || result.stderr.trim(), errors: [] };
+  } catch {
+    return { runtime: "claude-code", found: false, version: "", errors: ["Configured Claude Code CLI could not be executed"] };
+  }
+});
+
+function record(value: unknown): Record<string, unknown> | undefined {
+  return value && typeof value === "object" && !Array.isArray(value) ? value as Record<string, unknown> : undefined;
+}
+
+function numberValue(value: unknown): number | undefined {
+  return typeof value === "number" && Number.isFinite(value) && value >= 0 ? value : undefined;
+}
+
+export interface ClaudeCodeResultFacts {
+  finalText: string;
+  usage?: RuntimeUsage;
+  costUsd?: number;
+  costBasis?: "runtime_estimate";
+  permissionDenials: string[];
+}
+
+export function parseClaudeCodeResult(event: Record<string, unknown>, model?: string): ClaudeCodeResultFacts {
+  const result = record(event.result);
+  const finalText = typeof event.result === "string"
+    ? event.result
+    : typeof result?.result === "string" ? result.result
+      : typeof result?.finalText === "string" ? result.finalText : "";
+  const modelUsage = record(event.modelUsage);
+  const usageEntry = model && modelUsage?.[model] ? record(modelUsage[model])
+    : modelUsage ? Object.values(modelUsage).map(record).find((entry): entry is Record<string, unknown> => Boolean(entry)) : undefined;
+  const usage = usageEntry ? usageFromAnthropic({
+    input_tokens: usageEntry.inputTokens ?? usageEntry.input_tokens,
+    output_tokens: usageEntry.outputTokens ?? usageEntry.output_tokens,
+    cache_read_input_tokens: usageEntry.cacheReadInputTokens ?? usageEntry.cache_read_input_tokens,
+    cache_creation_input_tokens: usageEntry.cacheCreationInputTokens ?? usageEntry.cache_write_input_tokens,
+  }, model) ?? undefined : undefined;
+  const entryCost = usageEntry?.costUSD ?? usageEntry?.cost_usd;
+  const totalCost = entryCost ?? event.total_cost_usd;
+  const costUsd = numberValue(totalCost);
+  if (usage && costUsd !== undefined) {
+    usage.cost_usd = costUsd;
+    usage.cost_basis = "runtime_estimate";
+  }
+  const denials = Array.isArray(event.permission_denials) ? event.permission_denials
+    .map(record)
+    .filter((entry): entry is Record<string, unknown> => Boolean(entry))
+    .map(entry => typeof entry.tool_name === "string" ? entry.tool_name : "unknown") : [];
+  return { finalText, ...(usage ? { usage } : {}), ...(costUsd !== undefined ? { costUsd, costBasis: "runtime_estimate" as const } : {}), permissionDenials: denials };
+}
+
+function streamedClaudeUsage(events: Record<string, unknown>[], model?: string): RuntimeUsage | undefined {
+  const messages = new Map<string, { usage: Record<string, unknown>; complete: boolean }>();
+  let active: string | undefined;
+  for (const event of events) {
+    if (event.type === "message_start") {
+      const message = record(event.message);
+      active = typeof message?.id === "string" ? message.id : undefined;
+      if (active && !messages.has(active)) {
+        messages.set(active, { usage: { ...record(message?.usage) }, complete: false });
+      }
+    } else if (event.type === "message_delta" && active) {
+      const message = messages.get(active);
+      if (message && !message.complete) Object.assign(message.usage, record(event.usage));
+    } else if (event.type === "message_stop" && active) {
+      const message = messages.get(active);
+      if (message) message.complete = true;
+      active = undefined;
+    }
+  }
+  return aggregateRuntimeUsage([...messages.values()].map(message => {
+    const usage = usageFromAnthropic(message.usage, model);
+    if (!usage) return undefined;
+    if (!message.complete) {
+      delete usage.output_tokens;
+      delete usage.total_tokens;
+    }
+    return { model, usage };
+  })).usage;
+}
+
+function claudeSettings(role: ClaudeCodeRole, hookPath: string): string {
+  const settings: Record<string, unknown> = {
+    hooks: {
+      PreToolUse: [{ matcher: "*", hooks: [{ type: "command", command: `${JSON.stringify(process.execPath)} ${JSON.stringify(hookPath)}`, timeout: 10 }] }],
+    },
+  };
+  if (role === "orchestrator") settings.permissions = { allow: ["Bash(uh *)", "Bash(node *dist/cli.js*)"] };
+  return JSON.stringify(settings);
+}
+
+function controllerGuard(guard: ToolGuardPolicy | undefined): ToolGuardPolicy & { controller_commands: boolean } {
+  return { ...(guard ?? resolveToolGuardPolicy(undefined)), controller_commands: true };
+}
+
+export interface ClaudeCodeRunPlan {
+  command: string;
+  args: string[];
+  prompt: string;
+  mission: MissionDocument;
+  config: ClaudeCodeRuntimeConfig;
+  resume?: RuntimeResume;
+  grace: boolean;
+  deadline?: ClaudeCodeDeadline;
+  permission_mode: "guard" | "prompt";
+  guard: (ToolGuardPolicy & { controller_commands?: boolean }) | undefined;
+  expectedRoute: { model: string };
+  reviewRequestSha256?: string;
+  worktree: false;
+  session_id_passthrough: false;
+  errors: string[];
+}
+
+export async function planClaudeCodeRun(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown>; artifactRoot?: string } = {}): Promise<ClaudeCodeRunPlan> {
+  const mission = validateMission(parse(await readFile(missionPath, "utf8")));
+  const adapter = (await runtimeRegistry.load(root, "claude-code")).document;
+  const config = ClaudeCodeRuntimeConfigSchema.parse({
+    ...adapter.config?.runtime_config,
+    ...mergeRuntimeConfigOverrides(mission, options.extraRuntimeConfigOverrides),
+  });
+  if (config.resume_session && config.resume_from_run) throw new Error("Choose resume_session or resume_from_run, not both");
+  if (config.role === "worker" && !mission.guard) throw new Error("Claude Code worker runs require a mission guard policy");
+  if (config.role === "worker" && config.permission_mode !== "default") throw new Error("Claude Code worker runs require permission_mode default");
+  const reviewRequestSha256 = await assertIndependentReviewExecution(root, missionPath, mission, {
+    canonicalRoot: options.artifactRoot ?? root,
+    runtime: "claude-code",
+    model: config.model,
+    resumeSession: config.resume_session,
+    resumeFromRun: config.resume_from_run,
+    extraArgs: config.cli_args,
+  });
+  const resume = config.resume_from_run
+    ? await prepareRuntimeResume(options.artifactRoot ?? root, mission.id, config.resume_from_run, "claude-code", config.recovery_notes ?? config.recovery?.notes ?? "")
+    : undefined;
+  const grace = config.recovery_grace || resume?.grace === true;
+  const deadline = config.recovery?.on_deadline;
+  const workflow = validateWorkflow(parse(await readFile(path.join(root, ".harness", "workflows", `${mission.workflow_profile}.yaml`), "utf8")));
+  const prompt = renderPrompt(buildDispatchContext(mission, workflow)) + (resume ? recoveryPrompt(resume) : "");
+  const guard = config.role === "orchestrator" ? controllerGuard(mission.guard) : mission.guard;
+  const args = [...config.cli_args, "-p", prompt];
+  const resumeSession = resume?.sessionId ?? config.resume_session;
+  if (resumeSession) args.push("--resume", resumeSession);
+  args.push("--model", config.model, "--output-format", "stream-json", "--verbose", "--include-partial-messages", "--permission-mode", config.permission_mode);
+  if (config.role === "orchestrator") {
+    args.push("--tools", "Bash,Read,Write", "--strict-mcp-config", "--mcp-config", '{"mcpServers":{}}');
+  }
+  if (config.effort) args.push("--effort", config.effort);
+  // Turn-cap precedence mirrors command-code: top-level max_turns wins, else limits.max_turns.
+  const effectiveMaxTurns = grace && deadline ? deadline.grace_turns + 1 : (config.max_turns ?? config.limits?.max_turns);
+  if (effectiveMaxTurns) args.push("--max-turns", String(effectiveMaxTurns));
+  if (guard) args.push("--settings", claudeSettings(config.role, await snapshotGuardHook("extensions/tool-guard/claude-code-hook.js")));
+  return {
+    command: adapter.config?.cli_command || "claude",
+    args,
+    prompt,
+    mission,
+    config,
+    resume,
+    grace,
+    deadline,
+    permission_mode: guard ? "guard" : "prompt",
+    guard,
+    expectedRoute: { model: config.model },
+    reviewRequestSha256,
+    worktree: false,
+    session_id_passthrough: false,
+    errors: [],
+  };
+}
+
+export async function dryRunClaudeCode(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<ClaudeCodeRunPlan> {
+  const plan = await planClaudeCodeRun(root, missionPath, options);
+  const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
+  if (artifacts) await persistPromptAndSession(artifacts, plan.prompt, {
+    schema_version: "uh.runtime-session.v0",
+    mission_id: plan.mission.id,
+    runtime: "claude-code",
+    status: "planned",
+    command: plan.command,
+    args: plan.args,
+  });
+  return plan;
+}
+
+export interface ClaudeCodeRunOptions {
+  runner?: (input: RuntimeProcessInput) => Promise<RuntimeProcessOutput>;
+  collectDiff?: (cwd: string) => Promise<{ patch: string; errors?: string[] }>;
+  runId?: string;
+  artifactRoot?: string;
+  timeoutMs?: number;
+  cancellationSignal?: AbortSignal;
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
+  limits?: RuntimeLimits;
+}
+
+export async function runClaudeCode(root: string, missionPath: string, options: ClaudeCodeRunOptions = {}) {
+  const plan = await planClaudeCodeRun(root, missionPath, options);
+  const runId = options.runId ?? generateRunId();
+  const canonical = options.artifactRoot ?? root;
+  const artifacts = await getMissionArtifactContext(canonical, path.join(canonical, ".harness", "missions", plan.mission.id, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Claude Code requires a canonical UH mission artifact directory");
+  await claimRuntimeAttempt(artifacts);
+  if (plan.resume) await persistRuntimeRecovery(artifacts, plan.resume);
+  const startedAt = new Date().toISOString();
+  await persistPromptAndSession(artifacts, plan.prompt, {
+    schema_version: "uh.runtime-session.v0",
+    mission_id: plan.mission.id,
+    runtime: "claude-code",
+    status: "running",
+    command: plan.command,
+    args: plan.args,
+    started_at: startedAt,
+    ...(plan.config.pricing ? { pricing: plan.config.pricing } : {}),
+  });
+  await appendRunsIndexEntry(canonical, plan.mission.id, { run_id: runId, started_at: startedAt, status: "running", runtime: "claude-code", replay_of: plan.resume?.sourceRunId });
+  await writeLatestPointer(canonical, plan.mission.id, { schema_version: "uh.latest-run.v0", run_id: runId, started_at: startedAt, status: "running" });
+  await appendMissionEvent(artifacts, { event: "runtime.started", runtime: "claude-code", mission_id: plan.mission.id, run_id: runId, timestamp: startedAt });
+
+  let guardEnv: NodeJS.ProcessEnv | undefined;
+  if (plan.guard) {
+    const effectiveLimits = { ...plan.config.limits, ...(plan.config.max_turns ? { max_turns: plan.config.max_turns } : {}), ...options.limits };
+    const protectedPaths = effectiveLimits.protected_paths ?? DEFAULT_PROTECTED_PATHS;
+    const artifact = ToolGuardArtifactSchema.parse({
+      schema_version: "uh.tool-guard.v0",
+      ...plan.guard,
+      worker_root: root,
+      protected_paths: protectedPaths,
+      controller_commands: plan.config.role === "orchestrator",
+    });
+    const policyPath = path.join(artifacts.runDir, "tool-guard.json");
+    const logPath = path.join(artifacts.runDir, "tool-guard.log");
+    await writeArtifactFile(artifacts.missionDir, policyPath, JSON.stringify(artifact, null, 2));
+    guardEnv = { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+  }
+
+  let partial = "";
+  const events: Record<string, unknown>[] = [];
+  let liveUsage: RuntimeUsage | undefined;
+  const observe = async (chunk: string): Promise<void> => {
+    partial += chunk;
+    const lines = partial.split(/\r?\n/);
+    partial = lines.pop() ?? "";
+    for (const line of lines) {
+      let event: Record<string, unknown> | undefined;
+      try { event = nativeRuntimeEvent(JSON.parse(line)); } catch { continue; }
+      if (!event) continue;
+      events.push(event);
+      if (event.type === "message_start" || event.type === "message_delta" || event.type === "message_stop") {
+        liveUsage = streamedClaudeUsage(events, plan.config.model);
+      } else if (event.type === "result") {
+        liveUsage = parseClaudeCodeResult(event, plan.config.model).usage ?? liveUsage;
+      }
+      await appendMissionEvent(artifacts, { ...event, event: `claude-code.${event.type}`, timestamp: new Date().toISOString() });
+    }
+  };
+
+  let output: RuntimeProcessOutput;
+  try {
+    output = await (options.runner ?? runRuntimeProcess)({
+      command: plan.command,
+      args: plan.args,
+      cwd: root,
+      env: guardEnv,
+      permissionMode: plan.permission_mode,
+      guardLogPath: path.join(artifacts.runDir, "tool-guard.log"),
+      timeoutMs: options.timeoutMs,
+      onDeadline: plan.grace ? undefined : plan.deadline,
+      cancellationSignal: options.cancellationSignal,
+      expectedRoute: plan.expectedRoute,
+      reviewRequestSha256: plan.reviewRequestSha256,
+      limits: { ...plan.config.limits, ...(plan.config.max_turns ? { max_turns: plan.config.max_turns } : {}), ...(plan.grace && plan.deadline ? { max_turns: plan.deadline.grace_turns + 1, timeout_ms: plan.deadline.grace_timeout_ms } : {}), ...options.limits },
+      artifacts: { directory: artifacts.runDir, missionId: plan.mission.id, runId, runtime: "claude-code" },
+      onStdoutChunk: observe,
+      getUsage: () => liveUsage,
+    });
+    if (events.length === 0 && output.stdout) { partial = ""; await observe(output.stdout); }
+    if (partial.trim()) await observe("\n");
+  } catch (error) {
+    output = { stdout: "", stderr: "", exitCode: 1, timedOut: false, spawnError: error instanceof Error ? error.message : String(error) };
+  }
+
+  const terminal = events.filter(event => event.type === "result").at(-1);
+  const observedModels = new Set<string>();
+  for (const event of events) {
+    const model = nativeRuntimeRoute(event)?.model;
+    if (model) observedModels.add(model);
+  }
+  const observedModel = observedModels.size === 1 ? observedModels.values().next().value : undefined;
+  const nativeFacts = terminal ? parseClaudeCodeResult(terminal, observedModel) : { finalText: "", permissionDenials: [] };
+  const finalMessage = extractRuntimeFinalMessageSentinel(nativeFacts.finalText) ?? nativeFacts.finalText;
+  const usage = nativeFacts.usage ?? streamedClaudeUsage(events, observedModel);
+  if (usage && observedModel) usage.model = observedModel;
+  const estimatedCost = usage && usage.cost_usd === undefined ? estimateConfiguredCost(usage, observedModel, plan.config.pricing) : undefined;
+  if (usage && estimatedCost !== undefined) { usage.cost_usd = estimatedCost; usage.cost_basis = "configured_estimate"; }
+  const reportedModel = observedModel;
+  const errors = [output.spawnError, ...events.filter(event => event.type === "result").map(runtimeTerminalFailure)].filter((error): error is string => Boolean(error));
+  if (events.some(event => runtimeRouteMismatch(nativeRuntimeRoute(event), plan.expectedRoute))) errors.push("Runtime reported a route outside the configured assignment");
+  if (observedModels.size !== 1) errors.push("Runtime did not attest exactly one configured Claude Code model");
+  if (!terminal) errors.push("Claude Code did not emit a terminal result");
+  if (nativeFacts.permissionDenials.length) errors.push(`Claude Code permission denials: ${nativeFacts.permissionDenials.join(", ")}`);
+  let diff = { patch: "", errors: [] as string[] };
+  try {
+    const captured = await (options.collectDiff ?? captureDiffWithUntracked)(root);
+    diff = { patch: captured.patch, errors: captured.errors ?? [] };
+  } catch (error) { diff.errors.push(`Diff capture failed: ${error instanceof Error ? error.message : String(error)}`); }
+  // Diff capture runs after the runtime settled, so its failure says nothing
+  // about the run itself: on a confirmed settlement it is recorded as
+  // `diff_capture` bookkeeping and must not change status or exit_code. Only
+  // a run that never settled may fail because of diff capture.
+  const nativeCompleted = nativeRuntimeCompleted({
+    nativeTerminal: output.nativeTerminal === true,
+    nativeTerminalFailure: terminal ? runtimeTerminalFailure(terminal) : "Claude Code did not emit a terminal result",
+    supervisionStopCode: output.supervisionStopCode,
+    finalMessage,
+    cancelled: output.cancelled,
+    timedOut: output.timedOut,
+    spawnError: output.spawnError,
+    errors,
+  });
+  if (nativeCompleted) {
+    if (diff.errors.length > 0) errors.push(diffCaptureFailureRecord(diff.errors));
+  } else {
+    errors.push(...diff.errors);
+  }
+  const status = output.cancelled ? "cancelled" : nativeCompleted ? "passed"
+    : output.exitCode !== 0 || output.timedOut || errors.length ? "failed" : finalMessage ? "passed" : "blocked";
+  const incomplete = plan.grace || output.supervisionStopCode === "deadline";
+  const incompleteReason = incomplete
+    ? output.supervisionStopCode === "deadline" ? "Deadline grace budget exhausted" : "Original runtime budget exhausted; deliverable captured during grace"
+    : undefined;
+  const finishedAt = new Date().toISOString();
+  const facts = {
+    ...(reportedModel ? { model: reportedModel } : {}),
+    ...(usage ? { usage } : {}),
+    ...(plan.config.pricing ? { pricing: plan.config.pricing } : {}),
+    ...(usage?.cost_usd !== undefined ? { cost_usd: usage.cost_usd, cost_basis: usage.cost_basis } : {}),
+  };
+  const result: RuntimeResultDocument = validateRuntimeResult({
+    schema_version: "uh.runtime-result.v0",
+    mission_id: plan.mission.id,
+    runtime: "claude-code",
+    status,
+    started_at: startedAt,
+    finished_at: finishedAt,
+    ...(incomplete ? { completion: "incomplete" as const, incomplete_reason: incompleteReason } : {}),
+    exit_code: status === "failed" && output.exitCode === 0 ? 1 : output.exitCode,
+    ...(status === "passed" && output.exitCode !== 0 ? { exit_code_ignored_reason: "runtime exited non-zero after completed native terminal event" as const } : {}),
+    prompt_path: relativeArtifactPath(canonical, artifacts.promptPath),
+    stdout_path: relativeArtifactPath(canonical, artifacts.stdoutPath),
+    stderr_path: relativeArtifactPath(canonical, artifacts.stderrPath),
+    diff_path: relativeArtifactPath(canonical, artifacts.diffPath),
+    errors,
+    ...facts,
+  });
+  await writeArtifactFile(artifacts.missionDir, artifacts.stdoutPath, output.stdout);
+  await writeArtifactFile(artifacts.missionDir, artifacts.stderrPath, output.stderr);
+  await writeArtifactFile(artifacts.missionDir, artifacts.diffPath, diff.patch);
+  await writeArtifactFile(artifacts.missionDir, artifacts.finalMessagePath, finalMessage);
+  await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
+  await writeArtifactFile(artifacts.missionDir, artifacts.runtimeSessionPath, stringify({
+    schema_version: "uh.runtime-session.v0",
+    mission_id: plan.mission.id,
+    runtime: "claude-code",
+    status: status === "passed" ? "succeeded" : "failed",
+    command: plan.command,
+    args: plan.args,
+    started_at: startedAt,
+    finished_at: finishedAt,
+    exit_code: result.exit_code,
+    ...facts,
+  }));
+  await appendMissionEvent(artifacts, { event: "runtime.finished", runtime: "claude-code", mission_id: plan.mission.id, run_id: runId, status, timestamp: finishedAt });
+  await appendRunsIndexEntry(canonical, plan.mission.id, { run_id: runId, started_at: startedAt, finished_at: finishedAt, status, runtime: "claude-code" });
+  await writeLatestPointer(canonical, plan.mission.id, { schema_version: "uh.latest-run.v0", run_id: runId, started_at: startedAt, finished_at: finishedAt, status });
+  await mirrorRuntimeResultToLatest(canonical, plan.mission.id, runId);
+  return { exitCode: result.exit_code ?? 1, stdout: output.stdout, stderr: output.stderr, result, runId };
+}
diff --git a/src/adapters/codex.ts b/src/adapters/codex.ts
index 4306f84..2667be0 100644
--- a/src/adapters/codex.ts
+++ b/src/adapters/codex.ts
@@ -1,4 +1,3 @@
-import { spawn } from "node:child_process";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
 import { readFile, appendFile, copyFile } from "node:fs/promises";
@@ -13,6 +12,7 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { z } from "zod";
 import { MissionDocument } from "../schema/mission.js";
@@ -44,6 +44,8 @@ import { extractRuntimeFinalMessageSentinel } from "../harness/runtime-final-mes
 import { buildDispatchContext } from "../harness/dispatch-context.js";
 import { renderPrompt } from "../harness/render-prompt.js";
 import { mergeRuntimeConfigOverrides } from "../harness/runtime-config-overrides.js";
+import { runRuntimeProcess, type RuntimeProcessOutput } from "../harness/runtime-process.js";
+import { nativeRuntimeRoute, runtimeRouteMismatch } from "../harness/runtime-supervision.js";
 
 
 export type CheckResult = {
@@ -72,6 +74,7 @@ export type CodexRunPlan = {
   session_id_passthrough: boolean;
   errors: string[];
   mission: MissionDocument;
+  expectedRoute?: { model: string };
   /**
    * UH-137 — resolved Honcho opt-out for this mission. `false` when
    * `runtime_config.honcho_memory: false`; otherwise `true`. When `false`,
@@ -83,33 +86,19 @@ export type CodexRunPlan = {
 
 /**
  * Input the adapter hands to a Codex runner.
- *
- * Runners are responsible for invoking the configured CLI with the given
- * arguments inside `cwd`. They MUST honor `timeoutMs` when set; on expiry,
- * return `timedOut: true` and a non-zero exit code. The default runner uses
- * `child_process.spawn`; tests inject deterministic stubs.
  */
 export interface CodexRunnerInput {
   command: string;
   args: string[];
   cwd: string;
   timeoutMs?: number;
+  expectedRoute?: { model: string };
 }
 
 /**
  * Output a Codex runner returns to the adapter.
- *
- * Errors are surfaced explicitly rather than swallowed: a spawn failure sets
- * `spawnError`; a timeout sets `timedOut`. The adapter translates these into
- * `failed` runtime-result entries with explicit `errors[]` items.
  */
-export interface CodexRunnerOutput {
-  stdout: string;
-  stderr: string;
-  exitCode: number;
-  timedOut: boolean;
-  spawnError?: string;
-}
+export interface CodexRunnerOutput extends RuntimeProcessOutput {}
 
 export type CodexRunner = (input: CodexRunnerInput) => Promise<CodexRunnerOutput>;
 
@@ -205,6 +194,7 @@ runtimeRegistry.register("codex", codexRuntimeChecker);
  * instead of being silently dropped.
  */
 export const CodexRuntimeConfigSchema = z.object({
+  model: z.string().optional().default(""),
   sandbox_mode: z
     .enum(["read-only", "workspace-write", "danger-full-access"])
     .optional()
@@ -219,19 +209,15 @@ export const CodexRuntimeConfigSchema = z.object({
   // configured. false -> all Honcho activity is skipped for this mission.
   honcho_memory: z.boolean().optional(),
 }).strict();
-
 export type CodexRuntimeConfig = z.infer<typeof CodexRuntimeConfigSchema>;
-
 registerRuntimeConfigSchema("codex", CodexRuntimeConfigSchema);
 
 /** Extract the strongly-typed Codex `runtime_config` from an adapter manifest. */
 export function getCodexRuntimeConfig(adapter: AdapterDocument): CodexRuntimeConfig {
   return CodexRuntimeConfigSchema.parse(adapter.config?.runtime_config ?? {});
 }
-
 /**
  * Convenience wrapper that mirrors the CLI's codex check.
- *
  * - With `root`: dispatches through the registry so manifest errors and CLI
  *   errors share the same structured shape.
  * - Without `root`: probes the codex CLI directly (used in environments
@@ -244,10 +230,10 @@ export async function checkCodex(root?: string): Promise<CheckResult> {
   return runCodexCliCheck("codex");
 }
 
-export async function dryRunCodex(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunCodex(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
     const runId = generateRunId();
-    const plan = await planCodexRun(root, missionPath, { runId });
+    const plan = await planCodexRun(root, missionPath, { runId, extraRuntimeConfigOverrides: options.extraRuntimeConfigOverrides });
     const artifacts = await getMissionArtifactContext(root, missionPath, runId);
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -333,6 +319,10 @@ export async function planCodexRun(root: string, missionPath: string, options: P
     errors.push("Codex assigns its own thread id; set pass_session_id: false");
   }
 
+  const configuredModel = runtimeConfig.model.trim();
+  const manifestDefaultModel = typeof config?.default_model === "string" ? config.default_model.trim() : "";
+  const model = configuredModel || manifestDefaultModel || undefined;
+  const expectedRoute = model ? { model } : undefined;
   const sandboxMode = runtimeConfig.sandbox_mode;
   // approval_policy is retained in the runtime_config schema for backward
   // compatibility with manifests written against UH-23 / codex-cli <0.130,
@@ -347,7 +337,6 @@ export async function planCodexRun(root: string, missionPath: string, options: P
   // for this mission (enrich here + record in collectCodexSession). Default ON;
   // the honcho-memory extension itself no-ops when Honcho env is unconfigured.
   const honchoMemoryEnabled = runtimeConfig.honcho_memory !== false;
-
   const ctx = buildDispatchContext(mission, workflow);
   const basePrompt = renderPrompt(ctx);
   ctx.memoryBlock = honchoMemoryEnabled
@@ -364,6 +353,7 @@ export async function planCodexRun(root: string, missionPath: string, options: P
     "--output-last-message",
     finalMessagePath,
     "--skip-git-repo-check",
+    ...(model ? ["-m", model] : []),
     prompt,
   ];
 
@@ -376,6 +366,7 @@ export async function planCodexRun(root: string, missionPath: string, options: P
     session_id_passthrough: false,
     errors,
     mission,
+    expectedRoute,
     honchoMemoryEnabled,
   };
 }
@@ -386,43 +377,14 @@ export async function planCodexRun(root: string, missionPath: string, options: P
  * `timedOut` on the returned record so the adapter can translate them into a
  * `failed` runtime-result with explicit errors.
  */
-export const defaultCodexRunner: CodexRunner = (input) => {
-  return new Promise((resolve) => {
-    const child = spawn(input.command, input.args, {
-      cwd: input.cwd,
-      stdio: ["ignore", "pipe", "pipe"],
-    });
-
-    let stdout = "";
-    let stderr = "";
-    let settled = false;
-    let timedOut = false;
-    let timer: NodeJS.Timeout | undefined;
-
-    const finalize = (exitCode: number, spawnError?: string): void => {
-      if (settled) return;
-      settled = true;
-      if (timer) clearTimeout(timer);
-      resolve({ stdout, stderr, exitCode, timedOut, spawnError });
-    };
-
-    if (typeof input.timeoutMs === "number" && input.timeoutMs > 0) {
-      timer = setTimeout(() => {
-        timedOut = true;
-        try { child.kill("SIGKILL"); } catch { /* child already exited */ }
-      }, input.timeoutMs);
-    }
-
-    child.stdout?.on("data", (chunk: Buffer) => { stdout += chunk.toString(); });
-    child.stderr?.on("data", (chunk: Buffer) => { stderr += chunk.toString(); });
-    child.on("close", (code: number | null) => {
-      finalize(timedOut ? 1 : code ?? 1);
-    });
-    child.on("error", (err: Error) => {
-      finalize(1, err.message);
-    });
+export const defaultCodexRunner: CodexRunner = (input) =>
+  runRuntimeProcess({
+    command: input.command,
+    args: input.args,
+    cwd: input.cwd,
+    timeoutMs: input.timeoutMs,
+    expectedRoute: input.expectedRoute,
   });
-};
 
 /**
  * Default diff collector. Delegates to `captureDiffWithUntracked`
@@ -520,7 +482,20 @@ export async function runCodex(
       args: plan.args,
       cwd: root,
       timeoutMs: options.timeoutMs,
+      expectedRoute: plan.expectedRoute,
     });
+    if (plan.expectedRoute && runnerResult.supervisionStopCode === undefined) {
+      const observed = parseCodexJsonlStream(runnerResult.stdout).events
+        .map(nativeRuntimeRoute)
+        .find(route => route !== undefined);
+      if (runtimeRouteMismatch(observed, plan.expectedRoute)) {
+        runnerResult = {
+          ...runnerResult,
+          exitCode: runnerResult.exitCode === 0 ? 1 : runnerResult.exitCode,
+          supervisionStopCode: "route_mismatch",
+        };
+      }
+    }
 
     const collectDiff = options.collectDiff ?? defaultDiffCollector;
     const diff = await collectDiff(root);
@@ -649,10 +624,24 @@ export async function collectCodexSession(
     }
   }
 
+  const observedRoutes = parsedStream.events
+    .map(nativeRuntimeRoute)
+    .filter((route): route is { model?: string; provider?: string } => route !== undefined);
+  const routeModels = new Set(observedRoutes.map(route => route.model).filter((value): value is string => Boolean(value)));
+  const routeProviders = new Set(observedRoutes.map(route => route.provider).filter((value): value is string => Boolean(value)));
+  const observedModel = routeModels.size === 1 ? routeModels.values().next().value : undefined;
+  const observedProvider = routeProviders.size === 1 ? routeProviders.values().next().value : undefined;
+  if (plan.expectedRoute && observedRoutes.some(route => runtimeRouteMismatch(route, plan.expectedRoute))) {
+    errors.push("Runtime reported a route outside the configured assignment");
+  }
+  if (plan.expectedRoute && !observedModel && runnerResult.supervisionStopCode !== "route_mismatch") {
+    errors.push("Runtime did not attest the configured route");
+  }
+
   let status: RuntimeResultStatus;
   if (runnerResult.spawnError) {
     status = "failed";
-  } else if (runnerResult.timedOut) {
+  } else if (runnerResult.timedOut || runnerResult.supervisionStopCode) {
     status = "failed";
   } else if (quotaError) {
     status = "blocked";
@@ -660,6 +649,8 @@ export async function collectCodexSession(
     status = "failed";
   } else if (finalMessageMissing) {
     status = "blocked";
+  } else if (errors.length > 0) {
+    status = "failed";
   } else {
     status = "passed";
   }
@@ -691,10 +682,12 @@ export async function collectCodexSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
+      ...(observedProvider ? { provider: observedProvider } : {}),
+      ...(observedModel ? { model: observedModel } : {}),
       errors,
     };
     result = validateRuntimeResult(draft);
diff --git a/src/adapters/command-code.ts b/src/adapters/command-code.ts
new file mode 100644
index 0000000..630cf70
--- /dev/null
+++ b/src/adapters/command-code.ts
@@ -0,0 +1,395 @@
+import { assertIndependentReviewExecution } from "../harness/independent-review-execution.js";
+import { prepareRuntimeResume, recoveryPrompt, persistRuntimeRecovery } from "../harness/runtime-recovery.js";
+import { claimRuntimeAttempt } from "../harness/runtime-attempt.js";
+import { readFile, writeFile, mkdir } from "node:fs/promises";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
+import { parse, stringify } from "yaml";
+import { z } from "zod";
+import { registerRuntimeConfigSchema, type AdapterDocument } from "../schema/adapter.js";
+import { validateMission } from "../schema/mission.js";
+import { validateWorkflow } from "../schema/workflow.js";
+import { RuntimePricingSchema, validateRuntimeResult, type RuntimeResultDocument } from "../schema/artifacts.js";
+import { RuntimeLimitsSchema, RuntimeRecoveryPolicySchema, type RuntimeLimits, type RuntimeRecoveryDeadline, DEFAULT_PROTECTED_PATHS, ToolGuardArtifactSchema, resolveToolGuardPolicy, type ToolGuardPolicy } from "../schema/runtime-control.js";
+import { estimateConfiguredCost, type RuntimeUsage } from "../harness/usage.js";
+import { runtimeRegistry, type AdapterCheckResult } from "../harness/registry.js";
+import { buildDispatchContext } from "../harness/dispatch-context.js";
+import { renderPrompt } from "../harness/render-prompt.js";
+import { mergeRuntimeConfigOverrides } from "../harness/runtime-config-overrides.js";
+import { generateRunId, appendRunsIndexEntry, writeLatestPointer, mirrorRuntimeResultToLatest } from "../harness/run-id.js";
+import { runRuntimeProcess, type RuntimeProcessInput, type RuntimeProcessOutput } from "../harness/runtime-process.js";
+import { snapshotGuardHook } from "../harness/runtime-snapshot.js";
+import { nativeRuntimeCompleted, nativeRuntimeEvent, nativeRuntimeRoute, nativeTerminalBudgetCap, nativeTerminalStopReason, runtimeRouteMismatch, runtimeTerminalFailure } from "../harness/runtime-supervision.js";
+import { settleNativeCap, reconcileNativeCapSettlement } from "../harness/runtime-settlement.js";
+import { resolveRuntimeCommand } from "../harness/runtime-command.js";
+import { captureDiffWithUntracked, diffCaptureFailureRecord } from "../harness/diff-capture.js";
+import { extractRuntimeFinalMessageSentinel } from "../harness/runtime-final-message.js";
+import { getMissionArtifactContext, persistPromptAndSession, appendMissionEvent, writeArtifactFile } from "./_artifact-context.js";
+
+export const CommandCodeRuntimeConfigSchema = z.object({
+  model: z.string().optional().default(""),
+  cli_args: z.array(z.string()).optional().default([]),
+  trust_workspace: z.boolean().optional().default(false),
+  role: z.enum(["worker", "orchestrator"]).optional().default("worker"),
+  permission_mode: z.enum(["guard", "yolo", "prompt"]).optional(),
+  resume_session: z.string().min(1).optional(),
+  resume_from_run: z.string().min(1).optional(),
+  recovery_notes: z.string().min(1).optional(),
+  recovery: RuntimeRecoveryPolicySchema.optional(),
+  recovery_grace: z.boolean().optional(),
+  max_turns: z.number().int().positive().optional(),
+  limits: RuntimeLimitsSchema.optional(),
+  pricing: RuntimePricingSchema.optional(),
+}).strict();
+registerRuntimeConfigSchema("command-code", CommandCodeRuntimeConfigSchema);
+const exec = promisify(execFile);
+
+function controllerGuard(guard: ToolGuardPolicy | undefined): ToolGuardPolicy & { controller_commands: boolean } {
+  return { ...(guard ?? resolveToolGuardPolicy(undefined)), controller_commands: true };
+}
+
+/** Fixed closing paragraph for the orchestrator role: delegate only through the guarded harness. */
+const ORCHESTRATOR_DELEGATION_INSTRUCTION = "Orchestrator role: delegate only by running harness controller commands (`uh mission run`, `run-all`, `run-team`, or `node dist/cli.js` with the same verbs) through the guarded shell; never start an agent client or a native sub-agent tool. Each delegated worker needs its own mission packet and bound sandbox. Wait for a worker's settlement line before depending on its output. Never do a worker's job yourself.";
+
+export type CommandCodeProbeRunner = (
+  command: string,
+  args: string[],
+) => Promise<{ stdout: string; stderr?: string }>;
+
+export function buildCommandCodeProbeArgs(cliArgs: string[] = []): string[] {
+  return [...cliArgs, "--version", "--no-auto-update"];
+}
+
+const ANSI_CSI_REGEX = /[\u001B\u009B]\[[0-9;?]*[ -/]*[@-~]/g;
+
+export function parseCommandCodeVersion(output: string): string | null {
+  const stripped = output.replace(ANSI_CSI_REGEX, "");
+  const lines = stripped.split(/\r?\n/).map((line) => line.trim()).filter(Boolean);
+  for (let i = lines.length - 1; i >= 0; i--) {
+    const match = lines[i].match(/^v?(\d+\.\d+\.\d+(?:[-+a-zA-Z0-9_.]*[a-zA-Z0-9])?)$/);
+    if (match) {
+      return match[1];
+    }
+  }
+  return null;
+}
+
+export async function checkCommandCode(
+  manifest: AdapterDocument,
+  root?: string,
+  probe?: CommandCodeProbeRunner,
+): Promise<AdapterCheckResult> {
+  const config = CommandCodeRuntimeConfigSchema.parse(manifest.config?.runtime_config ?? {});
+  try {
+    const probeArgs = buildCommandCodeProbeArgs(config.cli_args);
+    const executable = await resolveRuntimeCommand(manifest.config?.cli_command || "cmdc", probeArgs);
+    const result = probe
+      ? await probe(executable.command, executable.args)
+      : await exec(executable.command, executable.args);
+    const rawOutput = (result.stdout || result.stderr || "").toString();
+    const version = parseCommandCodeVersion(rawOutput);
+    if (!version) {
+      return {
+        runtime: "command-code",
+        found: false,
+        version: "",
+        errors: ["Command Code version not found in probe output"],
+      };
+    }
+    return { runtime: "command-code", found: true, version, errors: [] };
+  } catch {
+    return { runtime: "command-code", found: false, version: "", errors: ["Configured Command Code CLI could not be executed"] };
+  }
+}
+
+runtimeRegistry.register("command-code", checkCommandCode);
+export async function planCommandCodeRun(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown>; artifactRoot?: string } = {}) {
+  const mission = validateMission(parse(await readFile(missionPath, "utf8")));
+  const adapter = (await runtimeRegistry.load(root, "command-code")).document;
+  const config = CommandCodeRuntimeConfigSchema.parse({ ...adapter.config?.runtime_config,
+    ...mergeRuntimeConfigOverrides(mission, options.extraRuntimeConfigOverrides) });
+  const cliCommand = adapter.config?.cli_command || "cmdc";
+  if (!config.model.trim()) throw new Error("Command Code requires an explicit runtime_config model");
+  if (!mission.guard && config.permission_mode === undefined) {
+    throw new Error("Command Code print mode requires a guard policy or runtime_config.permission_mode: \"yolo\" (or \"prompt\")");
+  }
+  if (config.role === "orchestrator" && !mission.guard) {
+    throw new Error("Command Code orchestrator runs require a mission guard policy");
+  }
+  const permissionMode = mission.guard ? "guard" as const : config.permission_mode ?? "prompt" as const;
+  const reviewRequestSha256 = await assertIndependentReviewExecution(root, missionPath, mission, {
+    canonicalRoot: options.artifactRoot ?? root, runtime: "command-code", model: config.model,
+    resumeSession: config.resume_session, resumeFromRun: config.resume_from_run, extraArgs: config.cli_args,
+  });
+  if (config.resume_session && config.resume_from_run) throw new Error("Choose resume_session or resume_from_run, not both");
+  const resume = config.resume_from_run
+    ? await prepareRuntimeResume(options.artifactRoot ?? root, mission.id, config.resume_from_run, "command-code", config.recovery_notes ?? config.recovery?.notes ?? "")
+    : undefined;
+  const grace = config.recovery_grace === true || resume?.grace === true;
+  const deadline = config.recovery?.on_deadline;
+  const workflow = validateWorkflow(parse(await readFile(path.join(root, ".harness", "workflows", `${mission.workflow_profile}.yaml`), "utf8")));
+  const guard = config.role === "orchestrator" ? controllerGuard(mission.guard) : mission.guard;
+  const prompt = renderPrompt(buildDispatchContext(mission, workflow)) + (resume ? recoveryPrompt(resume) : "")
+    + (config.role === "orchestrator" ? `\n\n${ORCHESTRATOR_DELEGATION_INSTRUCTION}` : "");
+  // Preserve native sessions; authorization remains with the configured CLI and sandbox.
+  const args = [...config.cli_args, "-p", prompt];
+  const resumeSession = resume?.sessionId ?? config.resume_session;
+  if (resumeSession) args.push("--resume", resumeSession);
+  args.push("-m", config.model, "--verbose", "--skip-onboarding", "--no-auto-update", "--no-skills", "--output-format", "json");
+  if (permissionMode === "guard" || permissionMode === "yolo") args.push("--yolo");
+  // Turn-cap precedence: explicit top-level max_turns wins, else limits.max_turns,
+  // else the native default applies and the plan records it.
+  const missionMaxTurns = config.max_turns ?? config.limits?.max_turns;
+  const effectiveMaxTurns = grace && deadline ? deadline.grace_turns + 1 : missionMaxTurns;
+  if (effectiveMaxTurns) args.push("--max-turns", String(effectiveMaxTurns));
+  // The grace attempt runs under a native cap of `grace_turns + 1`, so its cap
+  // is the attempt's expected end. Supervision is told this with the grace
+  // marker; a plain attempt keeps the ordinary deadline window.
+  const onDeadline = deadline === undefined ? undefined
+    : grace ? { ...deadline, grace: true as const }
+      : deadline;
+  return { command: cliCommand, args, prompt, mission, config, resume,
+    grace, deadline, onDeadline,
+    permission_mode: permissionMode,
+    ...(guard ? { guard } : {}),
+    ...(effectiveMaxTurns ? {} : { native_default_turn_cap: 100 as const }),
+    expectedRoute: { model: config.model }, reviewRequestSha256, worktree: false, session_id_passthrough: false, errors: [] as string[] };
+}
+
+export async function dryRunCommandCode(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}) {
+  const plan = await planCommandCodeRun(root, missionPath, options);
+  const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
+  if (artifacts) await persistPromptAndSession(artifacts, plan.prompt, {
+    schema_version: "uh.runtime-session.v0", mission_id: plan.mission.id, runtime: "command-code",
+    status: "planned", command: plan.command, args: plan.args,
+  });
+  return plan;
+}
+
+export interface CommandCodeRunOptions {
+  runner?: (input: RuntimeProcessInput) => Promise<RuntimeProcessOutput>;
+  collectDiff?: (cwd: string) => Promise<{ patch: string; errors?: string[] }>;
+  runId?: string;
+  artifactRoot?: string;
+  timeoutMs?: number;
+  cancellationSignal?: AbortSignal;
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
+  limits?: RuntimeLimits;
+}
+
+export async function runCommandCode(root: string, missionPath: string, options: CommandCodeRunOptions = {}) {
+  const plan = await planCommandCodeRun(root, missionPath, options);
+  const runId = options.runId ?? generateRunId();
+  const canonical = options.artifactRoot ?? root;
+  const artifacts = await getMissionArtifactContext(canonical, path.join(canonical, ".harness", "missions", plan.mission.id, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Command Code requires a canonical UH mission artifact directory");
+  await claimRuntimeAttempt(artifacts);
+  if (plan.resume) await persistRuntimeRecovery(artifacts, plan.resume);
+  const startedAt = new Date().toISOString();
+  await persistPromptAndSession(artifacts, plan.prompt, {
+    schema_version: "uh.runtime-session.v0", mission_id: plan.mission.id, runtime: "command-code",
+    status: "running", command: plan.command, args: plan.args, started_at: startedAt,
+    ...(plan.config.pricing ? { pricing: plan.config.pricing } : {}),
+  });
+  await appendRunsIndexEntry(canonical, plan.mission.id, { run_id: runId, started_at: startedAt, status: "running", runtime: "command-code", replay_of: plan.resume?.sourceRunId });
+  await writeLatestPointer(canonical, plan.mission.id, { schema_version: "uh.latest-run.v0", run_id: runId, started_at: startedAt, status: "running" });
+  await appendMissionEvent(artifacts, { event: "runtime.started", runtime: "command-code", mission_id: plan.mission.id, run_id: runId, timestamp: startedAt });
+  let guardEnv: NodeJS.ProcessEnv | undefined;
+  if (plan.guard) {
+    const effectiveLimits = { ...plan.config.limits, ...options.limits };
+    const protectedPaths = effectiveLimits.protected_paths ?? DEFAULT_PROTECTED_PATHS;
+    const artifact = ToolGuardArtifactSchema.parse({
+      schema_version: "uh.tool-guard.v0",
+      ...plan.guard,
+      worker_root: root,
+      protected_paths: protectedPaths,
+      controller_commands: plan.config.role === "orchestrator",
+    });
+    const policyPath = path.join(artifacts.runDir, "tool-guard.json");
+    const logPath = path.join(artifacts.runDir, "tool-guard.log");
+    await writeArtifactFile(artifacts.missionDir, policyPath, JSON.stringify(artifact, null, 2));
+    const settingsPath = path.join(root, ".commandcode", "settings.json");
+    await mkdir(path.dirname(settingsPath), { recursive: true });
+    let settings: Record<string, unknown> = {};
+    try {
+      const parsed = JSON.parse(await readFile(settingsPath, "utf8")) as unknown;
+      if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) settings = parsed as Record<string, unknown>;
+    } catch { /* absent or malformed settings are replaced with a valid hook container */ }
+    const hooks = settings.hooks && typeof settings.hooks === "object" && !Array.isArray(settings.hooks)
+      ? settings.hooks as Record<string, unknown> : {};
+    const preToolUse = Array.isArray(hooks.PreToolUse) ? hooks.PreToolUse : [];
+    const hookPath = await snapshotGuardHook("extensions/tool-guard/cmdc-hook.js");
+    const retainedHooks = preToolUse.filter((entry) => {
+      if (!entry || typeof entry !== "object" || !Array.isArray((entry as Record<string, unknown>).hooks)) return true;
+      const nested = (entry as Record<string, unknown>).hooks as unknown[];
+      return !nested.some((hook: unknown) => typeof hook === "object" && hook !== null && String((hook as Record<string, unknown>).command ?? "").includes("tool-guard"));
+    });
+    hooks.PreToolUse = [...retainedHooks, { hooks: [{ type: "command", command: `${process.execPath} \"${hookPath}\"`, timeout: 10 }] }];
+    settings.hooks = hooks;
+    await writeFile(settingsPath, JSON.stringify(settings, null, 2), "utf8");
+    await writeFile(path.join(root, ".commandcode", ".gitignore"), "*\n", "utf8");
+    guardEnv = { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+  }
+  let partial = "";
+  const events: Record<string, unknown>[] = [];
+  const observe = async (chunk: string) => {
+    partial += chunk;
+    const lines = partial.split(/\r?\n/);
+    partial = lines.pop() ?? "";
+    for (const line of lines) {
+      let event;
+      try { event = nativeRuntimeEvent(JSON.parse(line)); } catch { continue; }
+      if (!event) continue;
+      events.push(event);
+      await appendMissionEvent(artifacts, { ...event, event: `command-code.${event.type}`, timestamp: new Date().toISOString() });
+    }
+  };
+  let output: RuntimeProcessOutput;
+  try {
+    output = await (options.runner ?? runRuntimeProcess)({ command: plan.command, args: plan.args, cwd: root,
+      env: guardEnv,
+      permissionMode: plan.permission_mode,
+      guardLogPath: plan.guard && artifacts ? path.join(artifacts.runDir, "tool-guard.log") : undefined,
+      timeoutMs: options.timeoutMs,
+      onDeadline: plan.onDeadline,
+      cancellationSignal: options.cancellationSignal,
+      expectedRoute: plan.expectedRoute,
+      reviewRequestSha256: plan.reviewRequestSha256,
+      limits: { ...plan.config.limits, ...(plan.config.max_turns ? { max_turns: plan.config.max_turns } : {}),
+        ...(plan.grace && plan.deadline ? { max_turns: plan.deadline.grace_turns + 1, timeout_ms: plan.deadline.grace_timeout_ms } : {}), ...options.limits },
+      artifacts: { directory: artifacts.runDir, missionId: plan.mission.id, runId, runtime: "command-code" }, onStdoutChunk: observe });
+    if (events.length === 0 && output.stdout) { partial = ""; await observe(output.stdout); }
+    if (partial.trim()) await observe("\n");
+  } catch (error) {
+    output = { stdout: "", stderr: "", exitCode: 1, timedOut: false, spawnError: (error as Error).message };
+  }
+  const terminal = events.filter(e => e.type === "result" || e.type === "run_end").at(-1);
+  const nativeResult = terminal?.result && typeof terminal.result === "object" ? terminal.result as Record<string, unknown> : terminal;
+  const text = typeof nativeResult?.finalText === "string" ? nativeResult.finalText : "";
+  const finalMessage = extractRuntimeFinalMessageSentinel(text) ?? text;
+  // A native turn/time cap ends the attempt; the grace attempt's cap is its
+  // expected end and is settled by the deliverable it produced, never as a
+  // turn_limit failure. The cap can be named by any terminal event, not only
+  // the last one.
+  const terminalEvents = events.filter(e => e.type === "result" || e.type === "run_end");
+  const capEvent = terminalEvents.find(e => nativeTerminalBudgetCap(e) !== undefined);
+  const nativeCap = capEvent ? nativeTerminalBudgetCap(capEvent) : undefined;
+  const capTurns = typeof capEvent?.num_turns === "number" ? capEvent.num_turns : undefined;
+  const graceCapSettlement = plan.grace && nativeCap && capEvent
+    ? settleNativeCap({ cap: nativeCap, reason: nativeTerminalStopReason(capEvent) ?? (nativeCap === "turn" ? "max_turns" : "max_time"),
+      grace: true, deliverable: finalMessage.length > 0, turns: capTurns })
+    : undefined;
+  const observedModels = new Set<string>();
+  for (const event of events) {
+    const model = nativeRuntimeRoute(event)?.model;
+    if (model) observedModels.add(model);
+  }
+  const observedModel = observedModels.size === 1 ? observedModels.values().next().value : undefined;
+  const slash = typeof observedModel === "string" ? observedModel.indexOf("/") : -1;
+  const reportedProvider = typeof observedModel === "string" && slash > 0 ? observedModel.slice(0, slash) : undefined;
+  const reportedModel = typeof observedModel === "string" ? (slash > 0 ? observedModel.slice(slash + 1) : observedModel) : undefined;
+  const usageRecords = output.outputTruncated || !terminal ? [] : nativeResult?.usage ? [nativeResult.usage] : events.filter(e => e.type === "turn_end").map(e => e.usage);
+  const usage: RuntimeUsage = { source: "runtime" };
+  const fields = { inputTokens: "input_tokens", outputTokens: "output_tokens", totalTokens: "total_tokens", cacheReadTokens: "cache_read_tokens", cacheWriteTokens: "cache_write_tokens" } as const;
+  for (const [native, canonical] of Object.entries(fields)) {
+    let total = 0;
+    let complete = usageRecords.length > 0;
+    for (const record of usageRecords) {
+      const value = record && typeof record === "object" ? record as Record<string, unknown> : {};
+      const count = value[native] ?? value[canonical];
+      if (typeof count !== "number" || !Number.isFinite(count) || count < 0) { complete = false; break; }
+      total += count;
+    }
+    if (complete) usage[canonical] = total;
+  }
+  if (reportedProvider) usage.provider = reportedProvider;
+  if (reportedModel) usage.model = reportedModel;
+  const runtimeCost = nativeResult?.usage && typeof nativeResult.usage === "object"
+    ? (nativeResult.usage as Record<string, unknown>).cost_usd : undefined;
+  if (typeof runtimeCost === "number" && Number.isFinite(runtimeCost) && runtimeCost >= 0) {
+    usage.cost_usd = runtimeCost;
+    usage.cost_basis = "provider_reported";
+  }
+  const estimatedCost = usage.cost_usd === undefined ? estimateConfiguredCost(usage, observedModel, plan.config.pricing) : undefined;
+  if (estimatedCost !== undefined) {
+    usage.cost_usd = estimatedCost;
+    usage.cost_basis = "configured_estimate";
+  }
+  const facts = {
+    ...(reportedProvider ? { provider: reportedProvider } : {}),
+    ...(reportedModel ? { model: reportedModel } : {}),
+    ...(Object.keys(usage).length > 1 ? { usage } : {}),
+    ...(plan.config.pricing ? { pricing: plan.config.pricing } : {}),
+    ...(usage.cost_usd !== undefined ? { cost_usd: usage.cost_usd, cost_basis: usage.cost_basis } : {}),
+  };
+  // A native cap is the grace attempt's expected end, so its recorded failure
+  // is not an error; every other terminal failure still is.
+  const errors = [output.spawnError, ...terminalEvents
+    .map(event => graceCapSettlement && nativeTerminalBudgetCap(event) ? undefined : runtimeTerminalFailure(event))]
+    .filter((e): e is string => Boolean(e));
+  if (events.some(event => runtimeRouteMismatch(nativeRuntimeRoute(event), plan.expectedRoute))) errors.push("Runtime reported a route outside the configured assignment");
+  if (!reportedModel) errors.push("Runtime did not attest the configured route");
+  if (!terminal) errors.push("Command Code did not emit a terminal result");
+  let diff = { patch: "", errors: [] as string[] };
+  try {
+    const captured = await (options.collectDiff ?? captureDiffWithUntracked)(root);
+    diff = { patch: captured.patch, errors: captured.errors ?? [] };
+  } catch (error) { diff.errors.push(`Diff capture failed: ${(error as Error).message}`); }
+  // Diff capture runs after the runtime settled, so its failure says nothing
+  // about the run itself: on a confirmed settlement it is recorded as
+  // `diff_capture` bookkeeping and must not change status or exit_code. Only
+  // a run that never settled may fail because of diff capture.
+  const nativeCompleted = nativeRuntimeCompleted({
+    nativeTerminal: output.nativeTerminal === true,
+    nativeTerminalFailure: terminal ? runtimeTerminalFailure(terminal) : "Command Code did not emit a terminal result",
+    supervisionStopCode: output.supervisionStopCode,
+    finalMessage,
+    cancelled: output.cancelled,
+    timedOut: output.timedOut,
+    spawnError: output.spawnError,
+    errors,
+  });
+  if (nativeCompleted) {
+    if (diff.errors.length > 0) errors.push(diffCaptureFailureRecord(diff.errors));
+  } else {
+    errors.push(...diff.errors);
+  }
+  // Completion requires a natural end: any supervision stop (except the grace
+  // attempt's expected cap) settles failed even with a final message.
+  const supervisionStopped = output.supervisionStopCode !== undefined && graceCapSettlement === undefined;
+  const status = output.cancelled ? "cancelled" : graceCapSettlement ? graceCapSettlement.status : nativeCompleted ? "passed"
+    : output.exitCode !== 0 || output.timedOut || errors.length || supervisionStopped ? "failed"
+    : finalMessage ? "passed" : "blocked";
+  const incomplete = plan.grace || output.supervisionStopCode === "deadline";
+  const incompleteReason = incomplete
+    ? (output.supervisionStopCode === "deadline" ? "Deadline grace budget exhausted" : "Original runtime budget exhausted; deliverable captured during grace")
+    : undefined;
+  const finishedAt = new Date().toISOString();
+  const result: RuntimeResultDocument = validateRuntimeResult({ schema_version: "uh.runtime-result.v0",
+    mission_id: plan.mission.id, runtime: "command-code", status, started_at: startedAt, finished_at: finishedAt,
+    ...(incomplete ? { completion: "incomplete" as const, incomplete_reason: incompleteReason } : {}),
+    exit_code: status === "failed" && output.exitCode === 0 ? 1 : output.exitCode,
+    ...(status === "passed" && output.exitCode !== 0 ? { exit_code_ignored_reason: "runtime exited non-zero after completed native terminal event" as const } : {}),
+    prompt_path: relativeArtifactPath(canonical, artifacts.promptPath),
+    stdout_path: relativeArtifactPath(canonical, artifacts.stdoutPath), stderr_path: relativeArtifactPath(canonical, artifacts.stderrPath),
+    diff_path: relativeArtifactPath(canonical, artifacts.diffPath), errors, ...facts });
+  await writeArtifactFile(artifacts.missionDir, artifacts.stdoutPath, output.stdout);
+  await writeArtifactFile(artifacts.missionDir, artifacts.stderrPath, output.stderr);
+  await writeArtifactFile(artifacts.missionDir, artifacts.diffPath, diff.patch);
+  await writeArtifactFile(artifacts.missionDir, artifacts.finalMessagePath, finalMessage);
+  await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
+  // The grace attempt ended on its expected native cap, so its control receipt
+  // settles by the deliverable with stop code `deadline` rather than the
+  // launcher exit code.
+  if (graceCapSettlement) await reconcileNativeCapSettlement(canonical, plan.mission.id, runId, graceCapSettlement).catch(() => undefined);
+  await writeArtifactFile(artifacts.missionDir, artifacts.runtimeSessionPath, stringify({ schema_version: "uh.runtime-session.v0",
+    mission_id: plan.mission.id, runtime: "command-code", status: status === "passed" ? "succeeded" : "failed",
+    command: plan.command, args: plan.args, started_at: startedAt, finished_at: finishedAt, exit_code: result.exit_code, ...facts }));
+  await appendMissionEvent(artifacts, { event: "runtime.finished", runtime: "command-code", mission_id: plan.mission.id, run_id: runId, status, timestamp: finishedAt });
+  await appendRunsIndexEntry(canonical, plan.mission.id, { run_id: runId, started_at: startedAt, finished_at: finishedAt, status, runtime: "command-code" });
+  await writeLatestPointer(canonical, plan.mission.id, { schema_version: "uh.latest-run.v0", run_id: runId, started_at: startedAt, finished_at: finishedAt, status });
+  await mirrorRuntimeResultToLatest(canonical, plan.mission.id, runId);
+  return { exitCode: result.exit_code ?? 1, stdout: output.stdout, stderr: output.stderr, result, runId };
+}
diff --git a/src/adapters/hermes-proxy.ts b/src/adapters/hermes-proxy.ts
index ea4aa7d..219fe5a 100644
--- a/src/adapters/hermes-proxy.ts
+++ b/src/adapters/hermes-proxy.ts
@@ -11,11 +11,12 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { MissionDocument, validateMission } from "../schema/mission.js";
 import { validateWorkflow, WorkflowDocument } from "../schema/workflow.js";
 import { auditLog, workflowsDir } from "../harness/paths.js";
-import { buildUsageEvent, estimateUsage, usageFromOpenAI } from "../harness/usage.js";
+import { buildUsageEvent, usageFromOpenAI } from "../harness/usage.js";
 import {
   appendRunsIndexEntry,
   generateRunId,
@@ -678,9 +679,9 @@ export const defaultDiffCollector: DiffCollector = async (cwd) => {
 
 // ---------- orchestrator ----------
 
-export async function dryRunHermesProxy(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunHermesProxy(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planHermesProxyRun(root, missionPath);
+    const plan = await planHermesProxyRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -917,6 +918,7 @@ export async function collectHermesProxySession(
       });
     }
 
+    const proxyUsage = usageFromOpenAI(runnerResult.usage, runnerResult.usageModel);
     const draft: RuntimeResultDocument = {
       schema_version: "uh.runtime-result.v0",
       mission_id: plan.mission.id,
@@ -925,11 +927,13 @@ export async function collectHermesProxySession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
+      ...(proxyUsage ? { usage: proxyUsage } : {}),
+      ...(runnerResult.usageModel ? { model: runnerResult.usageModel } : {}),
     };
     result = validateRuntimeResult(draft);
     await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
@@ -943,13 +947,12 @@ export async function collectHermesProxySession(
       exitCode === 0 ? "succeeded" : "failed",
     );
 
-    const proxyUsage =
-      usageFromOpenAI(runnerResult.usage, runnerResult.usageModel) ??
-      estimateUsage(plan.prompt, sentinel);
-    await appendMissionEvent(
-      artifacts,
-      buildUsageEvent("hermes-proxy", plan.mission.id, proxyUsage, finishedAt),
-    );
+    if (proxyUsage) {
+      await appendMissionEvent(
+        artifacts,
+        buildUsageEvent("hermes-proxy", plan.mission.id, proxyUsage, finishedAt),
+      );
+    }
   } catch (err) {
     const message = (err as Error).message;
     const separator = stderr && !stderr.endsWith("\n") ? "\n" : "";
diff --git a/src/adapters/hermes.ts b/src/adapters/hermes.ts
index 341ee1a..035eaf0 100644
--- a/src/adapters/hermes.ts
+++ b/src/adapters/hermes.ts
@@ -1,7 +1,8 @@
 import { z } from "zod";
-import { spawn } from "node:child_process";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
+import { resolveRuntimeCommand } from "../harness/runtime-command.js";
+import { runRuntimeProcess } from "../harness/runtime-process.js";
 import { readFile, appendFile } from "node:fs/promises";
 import {
   type MissionArtifactContext,
@@ -14,6 +15,7 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, AdapterConfigSchema, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { MissionDocument } from "../schema/mission.js";
 import { validateMission } from "../schema/mission.js";
@@ -231,7 +233,8 @@ async function runHermesCliCheck(command: string): Promise<AdapterCheckResult> {
 
   let versionOutput: string;
   try {
-    const { stdout } = await execFileP(command, ["--version"]);
+    const executable = await resolveRuntimeCommand(command, ["--version"]);
+    const { stdout } = await execFileP(executable.command, executable.args);
     versionOutput = stdout.trim();
   } catch {
     result.errors.push(
@@ -256,7 +259,8 @@ async function runHermesCliCheck(command: string): Promise<AdapterCheckResult> {
   }
 
   try {
-    await execFileP(command, ["status"]);
+    const executable = await resolveRuntimeCommand(command, ["status"]);
+    await execFileP(executable.command, executable.args);
   } catch {
     result.errors.push("hermes status failed; may need initial setup (hermes setup or hermes model)");
   }
@@ -303,9 +307,9 @@ export async function checkHermes(root?: string): Promise<CheckResult> {
   return runHermesCliCheck("hermes");
 }
 
-export async function dryRunHermes(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunHermes(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planHermesRun(root, missionPath);
+    const plan = await planHermesRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -437,48 +441,14 @@ export async function planHermesRun(root: string, missionPath: string, options:
   };
 }
 
-/**
- * Default runner. Streams stdout/stderr from a spawned child, applies a
- * SIGKILL on timeout, and never throws — failures surface as `spawnError` or
- * `timedOut` on the returned record so the adapter can translate them into a
- * `failed` runtime-result with explicit errors.
- */
-export const defaultHermesRunner: HermesRunner = (input) => {
-  return new Promise((resolve) => {
-    const child = spawn(input.command, input.args, {
-      cwd: input.cwd,
-      stdio: ["ignore", "pipe", "pipe"],
-    });
-
-    let stdout = "";
-    let stderr = "";
-    let settled = false;
-    let timedOut = false;
-    let timer: NodeJS.Timeout | undefined;
-
-    const finalize = (exitCode: number, spawnError?: string): void => {
-      if (settled) return;
-      settled = true;
-      if (timer) clearTimeout(timer);
-      resolve({ stdout, stderr, exitCode, timedOut, spawnError });
-    };
-
-    if (typeof input.timeoutMs === "number" && input.timeoutMs > 0) {
-      timer = setTimeout(() => {
-        timedOut = true;
-        try { child.kill("SIGKILL"); } catch { /* child already exited */ }
-      }, input.timeoutMs);
-    }
-
-    child.stdout?.on("data", (chunk: Buffer) => { stdout += chunk.toString(); });
-    child.stderr?.on("data", (chunk: Buffer) => { stderr += chunk.toString(); });
-    child.on("close", (code: number | null) => {
-      finalize(timedOut ? 1 : code ?? 1);
-    });
-    child.on("error", (err: Error) => {
-      finalize(1, err.message);
-    });
-  });
+/** Reuse UH's owned process tree, bounded capture and timeout settlement. */
+export const defaultHermesRunner: HermesRunner = async (input) => {
+  try {
+    return await runRuntimeProcess(input);
+  } catch (error) {
+    return { stdout: "", stderr: "", exitCode: 1, timedOut: false,
+      spawnError: error instanceof Error ? error.message : String(error) };
+  }
 };
 
 /**
@@ -733,10 +703,10 @@ export async function collectHermesSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
     };
     result = validateRuntimeResult(draft);
diff --git a/src/adapters/oh-my-pi.ts b/src/adapters/oh-my-pi.ts
index d8e2cd9..6da3519 100644
--- a/src/adapters/oh-my-pi.ts
+++ b/src/adapters/oh-my-pi.ts
@@ -1,7 +1,14 @@
-import { spawn } from "node:child_process";
+import { assertIndependentReviewExecution } from "../harness/independent-review-execution.js";
+import { prepareRuntimeResume, recoveryPrompt, persistRuntimeRecovery, type RuntimeResume } from "../harness/runtime-recovery.js";
+import { claimRuntimeAttempt } from "../harness/runtime-attempt.js";
+import { runRuntimeProcess, type RuntimeProcessInput } from "../harness/runtime-process.js";
+import { snapshotGuardHook } from "../harness/runtime-snapshot.js";
+import { RuntimeLimitsSchema, RuntimeRecoveryPolicySchema, RuntimeRouteSchema, type RuntimeLimits, type RuntimeRoute, type RuntimeStopCode, type RuntimeRecoveryDeadline, type ToolGuardPolicy, DEFAULT_PROTECTED_PATHS, ToolGuardArtifactSchema } from "../schema/runtime-control.js";
+import { delegatedRouteMismatch, nativeRuntimeCompleted, nativeRuntimeRoute, runtimeRouteMismatch } from "../harness/runtime-supervision.js";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { readFile, appendFile } from "node:fs/promises";
+import { readFile, appendFile, mkdtemp, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import {
   type MissionArtifactContext,
   getMissionArtifactContext,
@@ -13,13 +20,14 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { z } from "zod";
 import { MissionDocument } from "../schema/mission.js";
 import { validateMission } from "../schema/mission.js";
 import { validateWorkflow, WorkflowDocument } from "../schema/workflow.js";
 import { auditLog, workflowsDir } from "../harness/paths.js";
-import { buildUsageEvent, estimateUsage } from "../harness/usage.js";
+import { buildUsageEvent, isUsageNumber, type RuntimeUsage } from "../harness/usage.js";
 import {
   appendRunsIndexEntry,
   generateRunId,
@@ -82,6 +90,15 @@ export type OhMyPiRunPlan = {
   session_id_passthrough: boolean;
   errors: string[];
   mission: MissionDocument;
+  limits?: RuntimeLimits;
+  guard?: ToolGuardPolicy;
+  expectedRoute?: RuntimeRoute;
+  /** config.yml-style overlay written per run and passed with `--config`; outranks the operator's global OMP settings. */
+  runtimeOverlay: Record<string, unknown>;
+  reviewRequestSha256?: string;
+  resume?: RuntimeResume;
+  grace?: boolean;
+  deadline?: RuntimeRecoveryDeadline;
   /**
    * UH-137 — resolved Honcho opt-out for this mission. `false` when
    * `runtime_config.honcho_memory: false`; otherwise `true`. When `false`,
@@ -90,7 +107,6 @@ export type OhMyPiRunPlan = {
    */
   honchoMemoryEnabled: boolean;
 };
-
 /**
  * Input the adapter hands to a OhMyPi runner.
  *
@@ -99,12 +115,7 @@ export type OhMyPiRunPlan = {
  * return `timedOut: true` and a non-zero exit code. The default runner uses
  * `child_process.spawn`; tests inject deterministic stubs.
  */
-export interface OhMyPiRunnerInput {
-  command: string;
-  args: string[];
-  cwd: string;
-  timeoutMs?: number;
-}
+export interface OhMyPiRunnerInput extends RuntimeProcessInput {}
 
 /**
  * Output a OhMyPi runner returns to the adapter.
@@ -119,6 +130,12 @@ export interface OhMyPiRunnerOutput {
   exitCode: number;
   timedOut: boolean;
   spawnError?: string;
+  cancelled?: boolean;
+  sessionId?: string;
+  outputTruncated?: boolean;
+  nativeTerminal?: boolean;
+  nativeTerminalFailure?: string;
+  supervisionStopCode?: RuntimeStopCode;
 }
 
 export type OhMyPiRunner = (input: OhMyPiRunnerInput) => Promise<OhMyPiRunnerOutput>;
@@ -135,16 +152,21 @@ export interface PlanOhMyPiOptions {
   extraRuntimeConfigOverrides?: Record<string, unknown>;
   /** UH-82 — explicit per-run id; generated when absent. */
   runId?: string;
+  artifactRoot?: string;
 }
-
 export interface RunOhMyPiOptions {
   runner?: OhMyPiRunner;
   timeoutMs?: number;
+  limits?: RuntimeLimits;
   collectDiff?: DiffCollector;
-  /** UH-81 — forwarded into the planner so the merge happens before strict-parse. */
+  /** Canonical host root for persisted artifacts; execution remains rooted at `root`. */
+  artifactRoot?: string;
+  /** UH-81 — CLI-time overrides spread on top of mission.runtime_config_overrides. */
   extraRuntimeConfigOverrides?: Record<string, unknown>;
   /** Explicit per-run id; generated when absent. UH-82. */
   runId?: string;
+  /** Signal used by the CLI to stop the owned runtime process tree. */
+  cancellationSignal?: AbortSignal;
 }
 
 export interface RunOhMyPiResult {
@@ -155,7 +177,6 @@ export interface RunOhMyPiResult {
   /** UH-82 — id of the per-run artifact directory written. */
   runId: string;
 }
-
 export interface OhMyPiCollectInput {
   root: string;
   artifacts: MissionArtifactContext | null;
@@ -164,6 +185,7 @@ export interface OhMyPiCollectInput {
   finishedAt: string;
   runnerResult: OhMyPiRunnerOutput;
   diff: DiffCaptureResult;
+  eventsAlreadyPersisted?: boolean;
 }
 
 export interface OhMyPiCollectOutput {
@@ -229,6 +251,13 @@ export const OhMyPiRuntimeConfigSchema = z.object({
   allow_extensions: z.boolean().optional().default(false),
   allow_skills: z.boolean().optional().default(false),
   model: z.string().optional(),
+  resume_from_run: z.string().min(1).optional(),
+  recovery_notes: z.string().min(1).optional(),
+  recovery: RuntimeRecoveryPolicySchema.optional(),
+  recovery_grace: z.boolean().optional(),
+  resume_session: z.string().min(1).optional(),
+  timeout_ms: z.number().int().positive().optional(),
+  limits: RuntimeLimitsSchema.optional(),
   // UH-137: per-mission Honcho opt-out. Omitted/true -> Honcho memory enrich,
   // record, and the honcho_search/honcho_remember tools run when Honcho env is
   // configured. false -> all Honcho activity is skipped for this mission.
@@ -259,9 +288,9 @@ export async function checkOhMyPi(root?: string): Promise<CheckResult> {
   return runOhMyPiCliCheck("omp");
 }
 
-export async function dryRunOhMyPi(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunOhMyPi(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planOhMyPiRun(root, missionPath);
+    const plan = await planOhMyPiRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -327,6 +356,11 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
   } catch (e) {
     throw new Error(`Mission runtime_config_overrides validation failed: ${(e as Error).message}`);
   }
+  if (runtimeConfig.resume_session && runtimeConfig.resume_from_run) throw new Error("Choose resume_session or resume_from_run, not both");
+  const resume = runtimeConfig.resume_from_run
+    ? await prepareRuntimeResume(options.artifactRoot ?? root, mission.id, runtimeConfig.resume_from_run, "oh-my-pi", runtimeConfig.recovery_notes ?? runtimeConfig.recovery?.notes ?? "")
+    : undefined;
+  const grace = runtimeConfig.recovery_grace === true || resume?.grace === true;
 
   let workflow: WorkflowDocument | undefined;
   const workflowPath = path.join(workflowsDir(root), `${mission.workflow_profile}.yaml`);
@@ -340,7 +374,7 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
 
   const config = adapter.config;
   const cliCommand = config?.cli_command ? config.cli_command : "omp";
-  const worktreeMode = config?.worktree_mode === true;
+  if (config?.worktree_mode) errors.push("OhMyPi worktree_mode is unsupported; use UH workspace isolation");
   if (config?.pass_session_id === true) {
     errors.push("OhMyPi assigns its own thread id; set pass_session_id: false");
   }
@@ -349,7 +383,13 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
   if (mode === "rpc-ui") {
     errors.push("oh-my-pi mode rpc-ui expects a TUI parent; use mode: json, text, or rpc for headless runs");
   }
-  const model = runtimeConfig.model && runtimeConfig.model.length > 0 ? runtimeConfig.model : undefined;
+  const model = runtimeConfig.model?.trim() || config?.default_model?.trim() || undefined;
+  const separator = model?.indexOf("/") ?? -1;
+  const expectedRoute = RuntimeRouteSchema.parse({
+    provider: separator > 0 ? model!.slice(0, separator) : config?.default_provider?.trim() || undefined,
+    model: separator > 0 ? model!.slice(separator + 1) : model,
+  });
+  if (mode === "text" && (expectedRoute.model || expectedRoute.provider)) errors.push("An assigned OMP route requires structured runtime output, not text mode");
   const thinking = runtimeConfig.thinking === "" ? undefined : runtimeConfig.thinking;
   const allowExtensions = runtimeConfig.allow_extensions;
   const allowSkills = runtimeConfig.allow_skills;
@@ -363,6 +403,11 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
   // for this mission (enrich here + record in runOhMyPi). Default ON; the
   // honcho-memory extension itself no-ops when Honcho env is not configured.
   const honchoMemoryEnabled = runtimeConfig.honcho_memory !== false;
+  const reviewRequestSha256 = await assertIndependentReviewExecution(root, missionPath, mission, {
+    canonicalRoot: options.artifactRoot ?? root, runtime: "oh-my-pi", model,
+    resumeSession: runtimeConfig.resume_session, resumeFromRun: runtimeConfig.resume_from_run,
+    memoryEnabled: honchoMemoryEnabled, extensionsEnabled: allowExtensions, skillsEnabled: allowSkills,
+  });
 
   const ctx = buildDispatchContext(mission, workflow);
   const basePrompt = renderPrompt(ctx);
@@ -370,17 +415,25 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
     ? await loadHonchoMemoryBlock({ cwd: root, missionId: mission.id })
     : null;
   ctx.memoryBlock = memoryBlock ?? undefined;
-  const prompt = renderPrompt(ctx);
+  const prompt = renderPrompt(ctx) + (resume ? recoveryPrompt(resume) : "");
   const args = [
     "--print",
   ];
   if (model) {
     args.push("--model", model);
   }
+  if (expectedRoute.provider) args.push("--provider", expectedRoute.provider);
   if (thinking) {
     args.push("--thinking", thinking);
   }
-  args.push("--mode", mode, "--no-session");
+  args.push("--mode", mode);
+  if (mission.guard) {
+    args.push("-e", await snapshotGuardHook("extensions/tool-guard/omp.js"));
+  }
+  const resumeSession = resume?.sessionId ?? runtimeConfig.resume_session;
+  if (resumeSession) {
+    args.push("--resume", resumeSession);
+  }
   if (!allowExtensions) {
     args.push("--no-extensions");
   }
@@ -389,62 +442,53 @@ export async function planOhMyPiRun(root: string, missionPath: string, options:
   }
   args.push("--no-title", prompt);
 
+  const deadline = runtimeConfig.recovery?.on_deadline;
+  const limits: RuntimeLimits = {
+    ...runtimeConfig.limits,
+    ...(runtimeConfig.timeout_ms ? { timeout_ms: runtimeConfig.timeout_ms } : {}),
+    ...(grace && deadline ? { max_turns: deadline.grace_turns + 1, timeout_ms: deadline.grace_timeout_ms } : {}),
+  };
   return {
+    ...(mission.guard ? { guard: mission.guard } : {}),
     command: cliCommand,
     args,
     prompt,
     basePrompt,
-    worktree: worktreeMode,
+    worktree: false,
     session_id_passthrough: false,
     errors,
     mission,
+    limits,
+    resume,
+    grace,
+    deadline,
+    expectedRoute,
+    runtimeOverlay: ohMyPiRuntimeOverlay(model, mission.guard?.allow_native_subagents === true),
+    reviewRequestSha256,
     honchoMemoryEnabled,
   };
 }
 
+/** Roles OMP resolves on its own for sub-agents, summaries, commits and advice. */
+const OMP_MODEL_ROLES = ["default", "smol", "slow", "plan", "task", "commit", "advisor", "tiny", "vision", "designer"] as const;
+
 /**
- * Default runner. Streams stdout/stderr from a spawned child, applies a
- * SIGKILL on timeout, and never throws — failures surface as `spawnError` or
- * `timedOut` on the returned record so the adapter can translate them into a
- * `failed` runtime-result with explicit errors.
+ * OMP inherits the operator's global settings: eager delegation and role models
+ * that point at other providers. `--model` pins only the top-level session, so a
+ * sub-agent or helper role can spend on an unassigned route. The overlay pins
+ * every role to the assigned model and removes the native `task` tool unless
+ * the mission's guard allows native sub-agents.
  */
-export const defaultOhMyPiRunner: OhMyPiRunner = (input) => {
-  return new Promise((resolve) => {
-    const child = spawn(input.command, input.args, {
-      cwd: input.cwd,
-      stdio: ["ignore", "pipe", "pipe"],
-    });
-
-    let stdout = "";
-    let stderr = "";
-    let settled = false;
-    let timedOut = false;
-    let timer: NodeJS.Timeout | undefined;
-
-    const finalize = (exitCode: number, spawnError?: string): void => {
-      if (settled) return;
-      settled = true;
-      if (timer) clearTimeout(timer);
-      resolve({ stdout, stderr, exitCode, timedOut, spawnError });
-    };
-
-    if (typeof input.timeoutMs === "number" && input.timeoutMs > 0) {
-      timer = setTimeout(() => {
-        timedOut = true;
-        try { child.kill("SIGKILL"); } catch { /* child already exited */ }
-      }, input.timeoutMs);
-    }
+export function ohMyPiRuntimeOverlay(model: string | undefined, allowNativeSubagents: boolean): Record<string, unknown> {
+  return {
+    ...(model ? { modelRoles: Object.fromEntries(OMP_MODEL_ROLES.map(role => [role, model])) } : {}),
+    task: { eager: "default", maxRecursionDepth: allowNativeSubagents ? 1 : 0 },
+    advisor: { enabled: false },
+  };
+}
 
-    child.stdout?.on("data", (chunk: Buffer) => { stdout += chunk.toString(); });
-    child.stderr?.on("data", (chunk: Buffer) => { stderr += chunk.toString(); });
-    child.on("close", (code: number | null) => {
-      finalize(timedOut ? 1 : code ?? 1);
-    });
-    child.on("error", (err: Error) => {
-      finalize(1, err.message);
-    });
-  });
-};
+/** Shared UH process ownership and supervision; runtime parsing stays in this adapter. */
+export const defaultOhMyPiRunner: OhMyPiRunner = runRuntimeProcess;
 
 /**
  * Default diff collector. Delegates to `captureDiffWithUntracked`
@@ -469,51 +513,67 @@ export async function runOhMyPi(
   missionPath: string,
   options: RunOhMyPiOptions = {},
 ): Promise<RunOhMyPiResult> {
-  const plan = await planOhMyPiRun(root, missionPath, { extraRuntimeConfigOverrides: options.extraRuntimeConfigOverrides });
+  const plan = await planOhMyPiRun(root, missionPath, { extraRuntimeConfigOverrides: options.extraRuntimeConfigOverrides, artifactRoot: options.artifactRoot });
   if (plan.errors.length > 0) {
     throw new Error(plan.errors.join("; "));
   }
 
   const runId = options.runId ?? generateRunId();
   const startedAt = new Date().toISOString();
-  const artifacts = await getMissionArtifactContext(root, missionPath, runId);
-
+  const artifactRoot = options.artifactRoot ?? root;
+  const artifactMissionPath = path.join(artifactRoot, ".harness", "missions", plan.mission.id, "mission.yaml");
+  const artifacts = await getMissionArtifactContext(artifactRoot, artifactMissionPath, runId);
+  if (artifacts) await claimRuntimeAttempt(artifacts);
+  const overlayDir = artifacts?.runDir ?? await mkdtemp(path.join(tmpdir(), "uh-omp-overlay-"));
+  const overlayPath = path.join(overlayDir, "omp-overlay.yml");
+  if (artifacts) await writeArtifactFile(artifacts.missionDir, overlayPath, stringify(plan.runtimeOverlay));
+  else await writeFile(overlayPath, stringify(plan.runtimeOverlay), "utf8");
+  const titleFlag = plan.args.lastIndexOf("--no-title");
+  plan.args.splice(titleFlag < 0 ? 0 : titleFlag, 0, "--config", overlayPath);
+
+  let initializationError: string | undefined;
   if (artifacts) {
-    await writeLatestPointer(root, plan.mission.id, {
-      schema_version: "uh.latest-run.v0",
-      run_id: runId,
-      started_at: startedAt,
-      status: "running",
-    });
-    await appendRunsIndexEntry(root, plan.mission.id, {
-      run_id: runId,
-      started_at: startedAt,
-      status: "running",
-      runtime: "oh-my-pi",
-    });
-    await persistPromptAndSession(artifacts, plan.prompt, {
-      schema_version: "uh.runtime-session.v0",
-      mission_id: plan.mission.id,
-      runtime: "oh-my-pi",
-      status: "running",
-      command: plan.command,
-      args: plan.args,
-      started_at: startedAt,
-    });
-    await appendMissionEvent(artifacts, {
-      event: "runtime.started",
-      timestamp: startedAt,
-      runtime: "oh-my-pi",
-      mission_id: plan.mission.id,
-      command: plan.command,
-      args: plan.args,
-      run_id: runId,
-    });
+    try {
+      if (plan.resume) await persistRuntimeRecovery(artifacts, plan.resume);
+      await writeLatestPointer(artifactRoot, plan.mission.id, {
+        schema_version: "uh.latest-run.v0",
+        run_id: runId,
+        started_at: startedAt,
+        status: "running",
+      });
+      await appendRunsIndexEntry(artifactRoot, plan.mission.id, {
+        run_id: runId,
+        started_at: startedAt,
+        status: "running",
+        runtime: "oh-my-pi",
+        replay_of: plan.resume?.sourceRunId,
+      });
+      await persistPromptAndSession(artifacts, plan.prompt, {
+        schema_version: "uh.runtime-session.v0",
+        mission_id: plan.mission.id,
+        runtime: "oh-my-pi",
+        status: "running",
+        command: plan.command,
+        args: plan.args,
+        started_at: startedAt,
+      });
+      await appendMissionEvent(artifacts, {
+        event: "runtime.started",
+        timestamp: startedAt,
+        runtime: "oh-my-pi",
+        mission_id: plan.mission.id,
+        command: plan.command,
+        args: plan.args,
+        run_id: runId,
+      });
+    } catch {
+      initializationError = "Initial artifact persistence failure";
+    }
   }
 
   // Audit event
   try {
-    const logPath = auditLog(root);
+    const auditPath = auditLog(artifactRoot);
     const auditEntry = JSON.stringify({
       event: "mission.run",
       timestamp: new Date().toISOString(),
@@ -523,39 +583,136 @@ export async function runOhMyPi(
       workflow: plan.mission.workflow_profile,
       run_id: runId,
     });
-    await appendFile(logPath, `${auditEntry}\n`, "utf-8");
+    await appendFile(auditPath, `${auditEntry}\n`, "utf-8");
   } catch {
     // audit failure shouldn't block run
   }
 
+  let guardEnv: NodeJS.ProcessEnv | undefined;
+  if (plan.guard && artifacts) {
+    const effectiveLimits = { ...plan.limits, ...options.limits };
+    const protectedPaths = effectiveLimits.protected_paths ?? DEFAULT_PROTECTED_PATHS;
+    const artifact = ToolGuardArtifactSchema.parse({
+      schema_version: "uh.tool-guard.v0",
+      ...plan.guard,
+      worker_root: root,
+      protected_paths: protectedPaths,
+    });
+    const policyPath = path.join(artifacts.runDir, "tool-guard.json");
+    const logPath = path.join(artifacts.runDir, "tool-guard.log");
+    await writeArtifactFile(artifacts.missionDir, policyPath, JSON.stringify(artifact, null, 2));
+    guardEnv = { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+  }
+
   const runner = options.runner ?? defaultOhMyPiRunner;
+  let liveBuffer = "";
+  let liveEventPersisted = false;
+  let liveWrites = Promise.resolve();
+  const enqueueLiveChunk = (chunk: string): Promise<void> => {
+    if (!artifacts) return Promise.resolve();
+    liveBuffer += chunk;
+    const lines = liveBuffer.split(/\r?\n/);
+    liveBuffer = lines.pop() ?? "";
+    for (const line of lines) {
+      const trimmed = line.trim();
+      if (!trimmed) continue;
+      let event: Record<string, unknown>;
+      try {
+        const parsed = JSON.parse(trimmed) as unknown;
+        if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) continue;
+        event = parsed as Record<string, unknown>;
+      } catch {
+        continue;
+      }
+      if (typeof event.type !== "string") continue;
+      liveEventPersisted = true;
+      liveWrites = liveWrites.then(() => appendMissionEvent(artifacts, {
+        ...event,
+        event: `oh-my-pi.${event.type}`,
+      }));
+    }
+    return liveWrites;
+  };
   let runnerResult: OhMyPiRunnerOutput;
   let collection: OhMyPiCollectOutput;
   try {
-    runnerResult = await runner({
-      command: plan.command,
-      args: plan.args,
-      cwd: root,
-      timeoutMs: options.timeoutMs,
-    });
-
-    const collectDiff = options.collectDiff ?? defaultDiffCollector;
-    const diff = await collectDiff(root);
-    const finishedAt = new Date().toISOString();
+    if (initializationError) {
+      runnerResult = {
+        stdout: "",
+        stderr: "",
+        exitCode: 1,
+        timedOut: false,
+        spawnError: initializationError,
+      };
+      collection = await collectOhMyPiSession({
+        root: artifactRoot,
+        artifacts,
+        plan,
+        startedAt,
+        finishedAt: new Date().toISOString(),
+        runnerResult,
+        diff: { patch: "" },
+        eventsAlreadyPersisted: false,
+      });
+    } else {
+      try {
+        runnerResult = await runner({
+          command: plan.command,
+          args: plan.args,
+          cwd: root,
+          env: guardEnv,
+          timeoutMs: options.timeoutMs,
+          limits: { ...plan.limits, ...options.limits },
+          onDeadline: plan.grace ? undefined : plan.deadline,
+          expectedRoute: plan.expectedRoute,
+          reviewRequestSha256: plan.reviewRequestSha256,
+          artifacts: artifacts ? {
+            directory: path.dirname(artifacts.stdoutPath),
+            missionId: plan.mission.id,
+            runId,
+            runtime: "oh-my-pi",
+          } : undefined,
+          onStdoutChunk: enqueueLiveChunk,
+          cancellationSignal: options.cancellationSignal,
+        });
+      } catch {
+        runnerResult = {
+          stdout: "",
+          stderr: "",
+          exitCode: 1,
+          timedOut: false,
+          spawnError: "Runtime runner or stream persistence failed",
+        };
+      }
+      const trailing = liveBuffer;
+      liveBuffer = "";
+      try {
+        if (trailing.trim().length > 0) await enqueueLiveChunk(`${trailing}\n`);
+        await liveWrites;
+      } catch {
+        if (!runnerResult.spawnError) {
+          runnerResult = { ...runnerResult, exitCode: 1, spawnError: "Stream callback failed" };
+        }
+      }
 
-    collection = await collectOhMyPiSession({
-      root,
-      artifacts,
-      plan,
-      startedAt,
-      finishedAt,
-      runnerResult,
-      diff,
-    });
+      const collectDiff = options.collectDiff ?? defaultDiffCollector;
+      const diff = await collectDiff(root);
+      const finishedAt = new Date().toISOString();
+      collection = await collectOhMyPiSession({
+        root: artifactRoot,
+        artifacts,
+        plan,
+        startedAt,
+        finishedAt,
+        runnerResult,
+        diff,
+        eventsAlreadyPersisted: liveEventPersisted,
+      });
+    }
   } finally {
     if (artifacts) {
       try {
-        await mirrorRuntimeResultToLatest(root, plan.mission.id, runId);
+        await mirrorRuntimeResultToLatest(artifactRoot, plan.mission.id, runId);
       } catch {
         // best-effort.
       }
@@ -579,20 +736,28 @@ export async function runOhMyPi(
   if (artifacts) {
     const finishedAt = new Date().toISOString();
     const terminalStatus = deriveOmpRunStatus(collection.result, collection.exitCode);
-    await writeLatestPointer(root, plan.mission.id, {
-      schema_version: "uh.latest-run.v0",
-      run_id: runId,
-      started_at: startedAt,
-      finished_at: finishedAt,
-      status: terminalStatus,
-    });
-    await appendRunsIndexEntry(root, plan.mission.id, {
-      run_id: runId,
-      started_at: startedAt,
-      finished_at: finishedAt,
-      status: terminalStatus,
-      runtime: "oh-my-pi",
-    });
+    try {
+      await writeLatestPointer(artifactRoot, plan.mission.id, {
+        schema_version: "uh.latest-run.v0",
+        run_id: runId,
+        started_at: startedAt,
+        finished_at: finishedAt,
+        status: terminalStatus,
+      });
+    } catch {
+      // Keep the terminal per-run result even when the mirror is unwritable.
+    }
+    try {
+      await appendRunsIndexEntry(artifactRoot, plan.mission.id, {
+        run_id: runId,
+        started_at: startedAt,
+        finished_at: finishedAt,
+        status: terminalStatus,
+        runtime: "oh-my-pi",
+      });
+    } catch {
+      // Keep the terminal per-run result even when the index is unwritable.
+    }
   }
 
   return {
@@ -604,6 +769,7 @@ export async function runOhMyPi(
   };
 }
 
+
 function deriveOmpRunStatus(
   result: RuntimeResultDocument | undefined,
   exitCode: number,
@@ -632,16 +798,19 @@ function deriveOmpRunStatus(
 export async function collectOhMyPiSession(
   input: OhMyPiCollectInput,
 ): Promise<OhMyPiCollectOutput> {
-  const { artifacts, plan, runnerResult, diff, startedAt, finishedAt, root } = input;
+  const { artifacts, plan, runnerResult, diff, startedAt, finishedAt, root, eventsAlreadyPersisted } = input;
 
   const errors: string[] = [];
   let stderr = runnerResult.stderr;
   let exitCode = runnerResult.exitCode;
 
   if (runnerResult.spawnError) {
+    const safeSpawnError = runnerResult.spawnError.startsWith("Stream callback failed")
+      ? "Stream callback failed"
+      : runnerResult.spawnError;
     const separator = stderr && !stderr.endsWith("\n") ? "\n" : "";
-    stderr = `${stderr}${separator}Spawn error: ${runnerResult.spawnError}`;
-    errors.push(`Spawn error: ${runnerResult.spawnError}`);
+    stderr = `${stderr}${separator}Spawn error: ${safeSpawnError}`;
+    errors.push(`Spawn error: ${safeSpawnError}`);
     if (exitCode === 0) exitCode = 1;
   }
   if (runnerResult.timedOut) {
@@ -652,15 +821,33 @@ export async function collectOhMyPiSession(
     errors.push(...diff.errors);
   }
 
-  const quotaError = detectOhMyPiQuotaError(runnerResult.stdout, stderr);
+  const parsedStream = parseOhMyPiOutput(runnerResult.stdout);
+  errors.push(...parsedStream.parseErrors);
+  const routeMismatch = parsedStream.events.some(event => runtimeRouteMismatch(nativeRuntimeRoute(event), plan.expectedRoute) || delegatedRouteMismatch(event, plan.expectedRoute) !== undefined);
+  if (routeMismatch) {
+    errors.push("Runtime reported a route outside the configured assignment");
+    if (exitCode === 0) exitCode = 1;
+  }
+  const quotaError = detectOhMyPiQuotaError(runnerResult.stdout, stderr, parsedStream.events);
   if (quotaError) {
     errors.push(quotaError);
   }
-
-  const parsedStream = parseOhMyPiOutput(runnerResult.stdout);
-  errors.push(...parsedStream.parseErrors);
-
-  // Prefer the UH-28 runtime-final-message sentinel over the heuristic
+  const nativeTerminalError = extractNativeTerminalFailure(parsedStream.events);
+  if (nativeTerminalError) {
+    errors.push(nativeTerminalError);
+  }
+  const reportedFacts = extractReportedFacts(parsedStream.events);
+  const routeUnverified = (plan.expectedRoute?.model !== undefined && reportedFacts.model === undefined) ||
+    (plan.expectedRoute?.provider !== undefined && reportedFacts.provider === undefined);
+  if (routeUnverified) {
+    errors.push("Runtime did not attest the configured route");
+    if (exitCode === 0) exitCode = 1;
+  }
+  if (runnerResult.outputTruncated) {
+    delete reportedFacts.usage;
+    delete reportedFacts.costUsd;
+    delete reportedFacts.costBasis;
+  }
   // (last assistant-like JSON entry). Scans the heuristic-extracted last
   // assistant text (which is the JSON-decoded content, with real newlines)
   // rather than the raw NDJSON stdout where newlines are JSON-escaped.
@@ -673,13 +860,31 @@ export async function collectOhMyPiSession(
     errors.push("oh-my-pi did not emit a final assistant message");
   }
 
+  const nativeCompleted = nativeRuntimeCompleted({
+    nativeTerminal: runnerResult.nativeTerminal === true,
+    nativeTerminalFailure: runnerResult.nativeTerminalFailure,
+    supervisionStopCode: runnerResult.supervisionStopCode,
+    finalMessage,
+    cancelled: runnerResult.cancelled,
+    timedOut: runnerResult.timedOut,
+    spawnError: runnerResult.spawnError,
+    errors,
+  });
   let status: RuntimeResultStatus;
-  if (runnerResult.spawnError) {
+  if (runnerResult.cancelled) {
+    status = "cancelled";
+  } else if (runnerResult.spawnError) {
     status = "failed";
   } else if (runnerResult.timedOut) {
     status = "failed";
+  } else if (routeMismatch || routeUnverified) {
+    status = "failed";
   } else if (quotaError) {
     status = "blocked";
+  } else if (nativeTerminalError) {
+    status = "failed";
+  } else if (nativeCompleted) {
+    status = "passed";
   } else if (exitCode !== 0) {
     status = "failed";
   } else if (finalMessageMissing) {
@@ -687,6 +892,11 @@ export async function collectOhMyPiSession(
   } else {
     status = "passed";
   }
+  const incomplete = plan.grace || runnerResult.supervisionStopCode === "deadline";
+  const incompleteReason = incomplete
+    ? (runnerResult.supervisionStopCode === "deadline" ? "Deadline grace budget exhausted" : "Original runtime budget exhausted; deliverable captured during grace")
+    : undefined;
+  if (status === "failed" && exitCode === 0) exitCode = 1;
 
   if (!artifacts) {
     return { exitCode, stderr, finalMessage };
@@ -694,20 +904,8 @@ export async function collectOhMyPiSession(
 
   let result: RuntimeResultDocument | undefined;
   try {
-    await writeArtifactFile(artifacts.missionDir, artifacts.stdoutPath, runnerResult.stdout);
-    await writeArtifactFile(artifacts.missionDir, artifacts.stderrPath, stderr);
-    await writeArtifactFile(artifacts.missionDir, artifacts.diffPath, diff.patch);
-    await persistFinalMessage(artifacts, finalMessage);
-    for (const event of parsedStream.events) {
-      if (typeof event.type === "string") {
-        await appendMissionEvent(artifacts, {
-          ...event,
-          event: `oh-my-pi.${event.type}`,
-        });
-      }
-    }
-
     const draft: RuntimeResultDocument = {
+      ...(incomplete ? { completion: "incomplete" as const, incomplete_reason: incompleteReason } : {}),
       schema_version: "uh.runtime-result.v0",
       mission_id: plan.mission.id,
       runtime: "oh-my-pi",
@@ -715,33 +913,80 @@ export async function collectOhMyPiSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      ...(status === "passed" && exitCode !== 0 ? { exit_code_ignored_reason: "runtime exited non-zero after completed native terminal event" as const } : {}),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
+      ...(reportedFacts.provider ? { provider: reportedFacts.provider } : {}),
+      ...(reportedFacts.model ? { model: reportedFacts.model } : {}),
+      ...(reportedFacts.usage ? { usage: reportedFacts.usage } : {}),
+      ...(reportedFacts.costUsd !== undefined ? { cost_usd: reportedFacts.costUsd } : {}),
+      ...(reportedFacts.costBasis ? { cost_basis: reportedFacts.costBasis } : {}),
     };
     result = validateRuntimeResult(draft);
+    await writeArtifactFile(artifacts.missionDir, artifacts.stdoutPath, runnerResult.stdout);
+    await writeArtifactFile(artifacts.missionDir, artifacts.stderrPath, stderr);
+    await writeArtifactFile(artifacts.missionDir, artifacts.diffPath, diff.patch);
+    await persistFinalMessage(artifacts, finalMessage);
+    // Publish independently readable terminal artifacts before appending
+    // optional events. An unwritable events stream must not leave the run
+    // result or session in a running state.
     await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
-
     await persistFinalRuntimeSession(
       artifacts,
       plan,
       startedAt,
       finishedAt,
       exitCode,
-      exitCode === 0 ? "succeeded" : "failed",
+      status === "passed" ? "succeeded" : "failed",
+      reportedFacts,
     );
+    if (!eventsAlreadyPersisted) {
+      for (const event of parsedStream.events) {
+        if (typeof event.type === "string") {
+          await appendMissionEvent(artifacts, {
+            ...event,
+            event: `oh-my-pi.${event.type}`,
+          });
+        }
+      }
+    }
+    await appendMissionEvent(artifacts, {
+      event: "runtime.finished",
+      timestamp: finishedAt,
+      runtime: "oh-my-pi",
+      mission_id: plan.mission.id,
+      exit_code: exitCode,
+      status: status === "passed" ? "succeeded" : "failed",
+    });
 
-    await appendMissionEvent(
-      artifacts,
-      buildUsageEvent("oh-my-pi", plan.mission.id, estimateUsage(plan.prompt, finalMessage), finishedAt),
-    );
-  } catch (err) {
-    const message = (err as Error).message;
+    if (reportedFacts.usage) {
+      await appendMissionEvent(
+        artifacts,
+        buildUsageEvent("oh-my-pi", plan.mission.id, reportedFacts.usage, finishedAt),
+      );
+    }
+  } catch {
+    exitCode = exitCode === 0 ? 1 : exitCode;
+    const persistenceError = "Artifact persistence failure";
     const separator = stderr && !stderr.endsWith("\n") ? "\n" : "";
-    stderr = `${stderr}${separator}Artifact persistence failure: ${message}`;
-    return { exitCode: exitCode === 0 ? 1 : exitCode, stderr, finalMessage };
+    stderr = `${stderr}${separator}${persistenceError}`;
+    if (result) {
+      result = { ...result, status: "failed", exit_code: exitCode, errors: [...result.errors, persistenceError] };
+      try {
+        await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
+      } catch {
+        // The failed result remains available to the caller if this file is also unwritable.
+      }
+      try {
+        await persistFinalRuntimeSession(artifacts, plan, startedAt, finishedAt, exitCode, "failed", reportedFacts);
+      } catch {
+        // Finalize the independent run index even when session persistence is unavailable.
+      }
+    }
+    return { exitCode, stderr, result, finalMessage };
   }
 
   return { exitCode, stderr, result, finalMessage };
@@ -761,8 +1006,8 @@ export function parseOhMyPiOutput(stdout: string): { events: Array<Record<string
       } else {
         parseErrors.push(`OhMyPi JSON line ${index + 1} is not an object`);
       }
-    } catch (err) {
-      parseErrors.push(`OhMyPi JSON line ${index + 1} parse error: ${(err as Error).message}`);
+    } catch {
+      parseErrors.push(`OhMyPi JSON parse error on line ${index + 1}`);
     }
   }
 
@@ -787,20 +1032,114 @@ export function parseOhMyPiOutput(stdout: string): { events: Array<Record<string
   };
 }
 
-export function detectOhMyPiQuotaError(stdout: string, stderr: string): string | null {
-  const combined = `${stdout}\n${stderr}`;
-  const pattern = /usage limit|rate limit|not authenticated|auth(orization)? required|please log in|quota|credit|401|403|api[- ]?key/i;
-  if (!pattern.test(combined)) {
-    return null;
+function nativeMessageRecords(event: Record<string, unknown>): Record<string, unknown>[] {
+  const records = [event];
+  if (event.message && typeof event.message === "object" && !Array.isArray(event.message)) {
+    records.push(event.message as Record<string, unknown>);
+  }
+  if (event.type === "agent_end" && Array.isArray(event.messages)) {
+    for (const message of event.messages) {
+      if (message && typeof message === "object" && !Array.isArray(message)) {
+        records.push(message as Record<string, unknown>);
+      }
+    }
+  }
+  return records;
+}
+function extractNativeTerminalFailure(events: Array<Record<string, unknown>>): string | null {
+  const isAuthOrQuotaStatus = (value: unknown): boolean =>
+    value === 401 || value === 403 || value === 429 || value === "401" || value === "403" || value === "429";
+  const isServerStatus = (value: unknown): boolean =>
+    (typeof value === "number" && value >= 500 && value <= 599)
+    || (typeof value === "string" && /^5\d\d$/.test(value));
+
+  for (const event of events) {
+    const eventType = typeof event.type === "string" ? event.type : "";
+    for (const candidate of nativeMessageRecords(event)) {
+      const stopReason = candidate.stopReason ?? candidate.stop_reason;
+      if (typeof stopReason === "string" && /^(error|aborted)$/i.test(stopReason)) {
+        return `oh-my-pi runtime reported terminal failure: ${stopReason.toLowerCase()}`;
+      }
+      const errorMessage = candidate.errorMessage ?? candidate.error_message;
+      if (typeof errorMessage === "string" && errorMessage.trim().length > 0) {
+        return "oh-my-pi runtime reported terminal failure";
+      }
+
+      const errorRecord = candidate.error && typeof candidate.error === "object" && !Array.isArray(candidate.error)
+        ? candidate.error as Record<string, unknown>
+        : undefined;
+      const nestedStatus = errorRecord?.status;
+      const nestedMessage = errorRecord?.message;
+      const genericEnvelope = /^(error|failure)$/i.test(eventType)
+        && (isServerStatus(nestedStatus)
+          || (typeof nestedMessage === "string" && nestedMessage.trim().length > 0)
+          || isServerStatus(candidate.status));
+      const typedNestedFailure = isServerStatus(nestedStatus)
+        && (typeof nestedMessage === "string" || /^(error|failure)$/i.test(eventType));
+      if ((genericEnvelope || typedNestedFailure) && !isAuthOrQuotaStatus(nestedStatus)) {
+        return "oh-my-pi runtime reported terminal failure";
+      }
+    }
   }
-  const firstMatch = combined
-    .split("\n")
-    .map((line) => line.trim())
-    .find((line) => pattern.test(line));
-  const detail = firstMatch && firstMatch.length > 0 ? `: ${firstMatch}` : "";
-  return `oh-my-pi auth or quota error${detail}`;
+  return null;
 }
 
+export function detectOhMyPiQuotaError(
+  stdout: string,
+  stderr: string,
+  events: Array<Record<string, unknown>> = parseOhMyPiOutput(stdout).events,
+): string | null {
+  const classify = (text: string): string | null => {
+    if (/not authenticated|unauthorized|auth(?:entication|orization)? required|please log in|api[-_ ]?key|\b(?:401|403)\b/i.test(text)) {
+      return "oh-my-pi auth or quota error: API key authentication required";
+    }
+    if (/usage limit|rate limit|quota|credit|\b429\b/i.test(text)) {
+      return "oh-my-pi auth or quota error: quota or rate limit exceeded";
+    }
+    return null;
+  };
+
+  for (const line of stderr.split("\n")) {
+    const diagnostic = classify(line.trim());
+    if (diagnostic) return diagnostic;
+  }
+  for (const event of events) {
+    const type = typeof event.type === "string" ? event.type : "";
+    for (const candidate of nativeMessageRecords(event)) {
+      const errorRecord = candidate.error && typeof candidate.error === "object" && !Array.isArray(candidate.error)
+        ? candidate.error as Record<string, unknown>
+        : undefined;
+      const status = errorRecord?.status ?? candidate.status;
+      if (status === 401 || status === 403 || status === "401" || status === "403") {
+        return "oh-my-pi auth or quota error: API key authentication required";
+      }
+      if (status === 429 || status === "429") {
+        return "oh-my-pi auth or quota error: quota or rate limit exceeded";
+      }
+      const diagnostic = [
+        candidate.errorMessage,
+        candidate.error_message,
+        candidate.code,
+        errorRecord?.code,
+        errorRecord?.message,
+        /^(error|failure)$/i.test(type) && typeof candidate.message === "string" ? candidate.message : "",
+        typeof status === "string" ? status : "",
+        typeof candidate.error === "string" ? candidate.error : "",
+      ].filter((value): value is string => typeof value === "string").join(" ");
+      if (/error|failure|auth|quota/i.test(type) || diagnostic.length > 0) {
+        const classified = classify(diagnostic);
+        if (classified) return classified;
+      }
+    }
+  }
+  for (const line of stdout.split("\n")) {
+    const trimmed = line.trim();
+    if (!trimmed || trimmed.startsWith("{")) continue;
+    const diagnostic = classify(trimmed);
+    if (diagnostic) return diagnostic;
+  }
+  return null;
+}
 function extractFinalMessage(events: Array<Record<string, unknown>>): string {
   for (let index = events.length - 1; index >= 0; index -= 1) {
     const extracted = extractAssistantText(events[index]);
@@ -812,6 +1151,12 @@ function extractFinalMessage(events: Array<Record<string, unknown>>): string {
 }
 
 function extractAssistantText(event: Record<string, unknown>): string {
+  const nestedMessage = event.message;
+  if (nestedMessage && typeof nestedMessage === "object" && !Array.isArray(nestedMessage)) {
+    const extracted = extractAssistantText(nestedMessage as Record<string, unknown>);
+    if (extracted.length > 0) return extracted;
+  }
+
   const role = event.role;
   const type = event.type;
   const isAssistantLike = role === "assistant" || type === "assistant" || type === "message" || type === "result";
@@ -861,10 +1206,123 @@ function extractStringBody(event: Record<string, unknown>): string {
   for (const key of ["content", "text", "message", "body", "output"]) {
     const value = event[key];
     if (typeof value === "string") return value;
+    if (Array.isArray(value)) {
+      const parts = value.flatMap((block) => {
+        if (!block || typeof block !== "object" || Array.isArray(block)) return [];
+        const candidate = (block as Record<string, unknown>).text;
+        const blockType = (block as Record<string, unknown>).type;
+        return typeof candidate === "string" && (blockType === undefined || blockType === "text")
+          ? [candidate]
+          : [];
+      });
+      if (parts.length > 0) return parts.join("");
+    }
   }
   return "";
 }
 
+type OmpReportedFacts = {
+  provider?: string;
+  model?: string;
+  usage?: RuntimeUsage;
+  costUsd?: number;
+  costBasis?: RuntimeUsage["cost_basis"];
+};
+
+function extractReportedFacts(events: Array<Record<string, unknown>>): OmpReportedFacts {
+  const facts: OmpReportedFacts = {};
+  const usage: RuntimeUsage = { source: "runtime" };
+  const seenUsageIds = new Set<string>();
+  const providers = new Set<string>();
+  const models = new Set<string>();
+  let usageSeen = false;
+  let assistantTurnCount = 0;
+  let inputComplete = true;
+  let outputComplete = true;
+  let totalComplete = true;
+  let cacheReadComplete = true;
+  let cacheWriteComplete = true;
+  let costComplete = true;
+  let inputTotal = 0;
+  let outputTotal = 0;
+  let totalTokens = 0;
+  let cacheReadTotal = 0;
+  let cacheWriteTotal = 0;
+  let costTotal = 0;
+  let lastIdlessMessageEndFingerprint: string | undefined;
+
+  for (const event of events) {
+    const message = event.message;
+    const messageRecord = message && typeof message === "object" && !Array.isArray(message)
+      ? message as Record<string, unknown>
+      : null;
+    const route = nativeRuntimeRoute(event);
+    if (route?.provider) providers.add(route.provider);
+    if (route?.model) models.add(route.model);
+    if (event.type !== "message_end" || !messageRecord || messageRecord.role !== "assistant") continue;
+    const usageId = [messageRecord.id, messageRecord.responseId, event.id, event.responseId]
+      .find((value): value is string => typeof value === "string" && value.length > 0);
+    if (usageId) {
+      if (seenUsageIds.has(usageId)) continue;
+      seenUsageIds.add(usageId);
+    } else {
+      const messageEndFingerprint = JSON.stringify([event.timestamp ?? null, messageRecord]);
+      if (messageEndFingerprint === lastIdlessMessageEndFingerprint) continue;
+      lastIdlessMessageEndFingerprint = messageEndFingerprint;
+    }
+    assistantTurnCount += 1;
+    const usageObject = messageRecord.usage;
+    if (!usageObject || typeof usageObject !== "object" || Array.isArray(usageObject)) {
+      inputComplete = false;
+      outputComplete = false;
+      totalComplete = false;
+      cacheReadComplete = false;
+      cacheWriteComplete = false;
+      costComplete = false;
+      continue;
+    }
+    const usageData = usageObject as Record<string, unknown>;
+    usageSeen = true;
+
+    if (isUsageNumber(usageData.input)) inputTotal += usageData.input;
+    else inputComplete = false;
+    if (isUsageNumber(usageData.output)) outputTotal += usageData.output;
+    else outputComplete = false;
+    if (isUsageNumber(usageData.totalTokens)) totalTokens += usageData.totalTokens;
+    else totalComplete = false;
+    if (isUsageNumber(usageData.cacheRead)) cacheReadTotal += usageData.cacheRead;
+    else cacheReadComplete = false;
+    if (isUsageNumber(usageData.cacheWrite)) cacheWriteTotal += usageData.cacheWrite;
+    else cacheWriteComplete = false;
+
+    const cost = usageData.cost;
+    if (cost && typeof cost === "object" && !Array.isArray(cost) && isUsageNumber((cost as Record<string, unknown>).total)) {
+      costTotal += (cost as Record<string, unknown>).total as number;
+    } else {
+      costComplete = false;
+    }
+  }
+
+  if (providers.size === 1) facts.provider = providers.values().next().value;
+  if (models.size === 1) facts.model = models.values().next().value;
+  if (!usageSeen || assistantTurnCount === 0) return facts;
+  if (inputComplete && isUsageNumber(inputTotal)) usage.input_tokens = inputTotal;
+  if (outputComplete && isUsageNumber(outputTotal)) usage.output_tokens = outputTotal;
+  if (totalComplete && isUsageNumber(totalTokens)) usage.total_tokens = totalTokens;
+  if (cacheReadComplete && isUsageNumber(cacheReadTotal)) usage.cache_read_tokens = cacheReadTotal;
+  if (cacheWriteComplete && isUsageNumber(cacheWriteTotal)) usage.cache_write_tokens = cacheWriteTotal;
+  if (facts.provider) usage.provider = facts.provider;
+  if (facts.model) usage.model = facts.model;
+  if (costComplete && isUsageNumber(costTotal)) {
+    facts.costUsd = costTotal;
+    usage.cost_usd = costTotal;
+    facts.costBasis = "runtime_estimate";
+    usage.cost_basis = "runtime_estimate";
+  }
+  facts.usage = usage;
+  return facts;
+}
+
 async function persistFinalMessage(
   artifacts: MissionArtifactContext,
   finalMessage: string,
@@ -879,6 +1337,7 @@ async function persistFinalRuntimeSession(
   finishedAt: string,
   exitCode: number,
   sessionStatus: "succeeded" | "failed",
+  reportedFacts: OmpReportedFacts,
 ): Promise<void> {
   await persistPromptAndSession(artifacts, plan.prompt, {
     schema_version: "uh.runtime-session.v0",
@@ -890,13 +1349,10 @@ async function persistFinalRuntimeSession(
     exit_code: exitCode,
     started_at: startedAt,
     finished_at: finishedAt,
-  });
-  await appendMissionEvent(artifacts, {
-    event: "runtime.finished",
-    timestamp: finishedAt,
-    runtime: "oh-my-pi",
-    mission_id: plan.mission.id,
-    exit_code: exitCode,
-    status: sessionStatus,
+    ...(reportedFacts.provider ? { provider: reportedFacts.provider } : {}),
+    ...(reportedFacts.model ? { model: reportedFacts.model } : {}),
+    ...(reportedFacts.usage ? { usage: reportedFacts.usage } : {}),
+    ...(reportedFacts.costUsd !== undefined ? { cost_usd: reportedFacts.costUsd } : {}),
+    ...(reportedFacts.costBasis ? { cost_basis: reportedFacts.costBasis } : {}),
   });
 }
diff --git a/src/adapters/openrouter.ts b/src/adapters/openrouter.ts
index ea59daa..01e017c 100644
--- a/src/adapters/openrouter.ts
+++ b/src/adapters/openrouter.ts
@@ -11,11 +11,12 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { MissionDocument, validateMission } from "../schema/mission.js";
 import { validateWorkflow, WorkflowDocument } from "../schema/workflow.js";
 import { auditLog, workflowsDir } from "../harness/paths.js";
-import { buildUsageEvent, estimateUsage, usageFromOpenAI } from "../harness/usage.js";
+import { buildUsageEvent, usageFromOpenAI } from "../harness/usage.js";
 import {
   appendRunsIndexEntry,
   generateRunId,
@@ -687,9 +688,9 @@ export const defaultDiffCollector: DiffCollector = async (cwd) => {
 
 // ---------- orchestrator ----------
 
-export async function dryRunOpenRouter(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunOpenRouter(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planOpenRouterRun(root, missionPath);
+    const plan = await planOpenRouterRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -926,6 +927,7 @@ export async function collectOpenRouterSession(
       });
     }
 
+    const proxyUsage = usageFromOpenAI(runnerResult.usage, runnerResult.usageModel);
     const draft: RuntimeResultDocument = {
       schema_version: "uh.runtime-result.v0",
       mission_id: plan.mission.id,
@@ -934,11 +936,13 @@ export async function collectOpenRouterSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
+      ...(proxyUsage ? { usage: proxyUsage } : {}),
+      ...(runnerResult.usageModel ? { model: runnerResult.usageModel } : {}),
     };
     result = validateRuntimeResult(draft);
     await writeArtifactFile(artifacts.missionDir, artifacts.runtimeResultPath, stringify(result));
@@ -952,13 +956,12 @@ export async function collectOpenRouterSession(
       exitCode === 0 ? "succeeded" : "failed",
     );
 
-    const proxyUsage =
-      usageFromOpenAI(runnerResult.usage, runnerResult.usageModel) ??
-      estimateUsage(plan.prompt, sentinel);
-    await appendMissionEvent(
-      artifacts,
-      buildUsageEvent("openrouter", plan.mission.id, proxyUsage, finishedAt),
-    );
+    if (proxyUsage) {
+      await appendMissionEvent(
+        artifacts,
+        buildUsageEvent("openrouter", plan.mission.id, proxyUsage, finishedAt),
+      );
+    }
   } catch (err) {
     const message = (err as Error).message;
     const separator = stderr && !stderr.endsWith("\n") ? "\n" : "";
diff --git a/src/adapters/pi.ts b/src/adapters/pi.ts
index aa57bf6..f4c8d97 100644
--- a/src/adapters/pi.ts
+++ b/src/adapters/pi.ts
@@ -13,6 +13,7 @@ import {
 } from "./_artifact-context.js";
 import { parse, stringify } from "yaml";
 import path from "node:path";
+import { relativeArtifactPath } from "../harness/artifact-paths.js";
 import { AdapterDocument, registerRuntimeConfigSchema } from "../schema/adapter.js";
 import { z } from "zod";
 import { MissionDocument } from "../schema/mission.js";
@@ -259,9 +260,9 @@ export async function checkPi(root?: string): Promise<CheckResult> {
   return runPiCliCheck("pi");
 }
 
-export async function dryRunPi(root: string, missionPath: string): Promise<DryRunResult> {
+export async function dryRunPi(root: string, missionPath: string, options: { extraRuntimeConfigOverrides?: Record<string, unknown> } = {}): Promise<DryRunResult> {
   try {
-    const plan = await planPiRun(root, missionPath);
+    const plan = await planPiRun(root, missionPath, options);
     const artifacts = await getMissionArtifactContext(root, missionPath, generateRunId());
     if (artifacts) {
       await persistPromptAndSession(artifacts, plan.prompt, {
@@ -717,10 +718,10 @@ export async function collectPiSession(
       started_at: startedAt,
       finished_at: finishedAt,
       exit_code: exitCode,
-      prompt_path: path.relative(root, artifacts.promptPath),
-      stdout_path: path.relative(root, artifacts.stdoutPath),
-      stderr_path: path.relative(root, artifacts.stderrPath),
-      diff_path: path.relative(root, artifacts.diffPath),
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath),
+      stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath),
+      diff_path: relativeArtifactPath(root, artifacts.diffPath),
       errors,
     };
     result = validateRuntimeResult(draft);
diff --git a/src/cli.ts b/src/cli.ts
index f8255dc..865672a 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -1,8 +1,13 @@
 #!/usr/bin/env node
+import { prepareIndependentReview, collectIndependentReview } from "./harness/independent-review.js";
 import { Command } from "commander";
+import { z } from "zod";
+import type { RuntimeLimits } from "./schema/runtime-control.js";
+import type { MissionDocument } from "./schema/mission.js";
+import { resolveRuntimeRecoveryPolicy, runWithRuntimeRecovery } from "./harness/runtime-recovery.js";
 import { initializeHarness } from "./harness/init.js";
 import { getStatus } from "./harness/status.js";
-import { assertSafeMissionId, createMission } from "./harness/mission.js";
+import { assertSafeMissionId, createMission, isPathWithin } from "./harness/mission.js";
 import { parseIssueRef, parseRequiredCheck, proposeMission, proposeMissionFromSpec, type ProposeIssueRef, type ProposeRequiredCheck } from "./harness/propose.js";
 import { DEFAULT_VERIFY_COMMAND_TIMEOUT_MS, verifyMission } from "./harness/verify.js";
 import { promoteMission, type PromoteDecision } from "./harness/promote.js";
@@ -11,34 +16,45 @@ import { resolveRoot, missionDir } from "./harness/paths.js";
 import { checkHermes, dryRunHermes, runHermes } from "./adapters/hermes.js";
 import { dryRunCodex, runCodex } from "./adapters/codex.js";
 import { dryRunOhMyPi, runOhMyPi } from "./adapters/oh-my-pi.js";
+import { dryRunCommandCode, runCommandCode } from "./adapters/command-code.js";
+import { dryRunClaudeCode, runClaudeCode } from "./adapters/claude-code.js";
 import { dryRunHermesProxy, runHermesProxy } from "./adapters/hermes-proxy.js";
 import { dryRunOpenRouter, runOpenRouter } from "./adapters/openrouter.js";
 import { dryRunAnthropic, runAnthropic } from "./adapters/anthropic.js";
 import { dryRunPi, runPi } from "./adapters/pi.js";
+import { dryRunAcp, runAcp } from "./adapters/acp.js";
 import { runtimeRegistry } from "./harness/registry.js";
 import { assertRuntimeCapabilities, loadMissionFile } from "./harness/capabilities.js";
 import { assertRuntimeRequirements } from "./harness/runtime-requirements.js";
-import { chooseAdapter, formatAutoRouteExplain } from "./harness/auto-route.js";
+import { assertFleetAdmission, loadFleetPolicy, authorizedFleetAdapters } from "./harness/fleet-policy.js";
+import { chooseAdapter, chooseSemanticRoute, formatAutoRouteExplain, formatSemanticRouteSummary, type SemanticRouteDecision } from "./harness/auto-route.js";
 import { CAPABILITIES, listAdapterIds, type AdapterId } from "./adapters/capabilities/index.js";
 import { forecastCost } from "./harness/cost-forecast.js";
 import { probeHermesProxyCapabilities } from "./adapters/capabilities/hermes-proxy-probe.js";
 import { COST_CLASSES } from "./schema/adapter-capabilities.js";
-import { findBoundSandbox } from "./harness/verify.js";
-import { appendRuntimeCancelledEvent } from "./harness/runtime-events.js";
-import { cancelMissionRunViaPlugin, defaultPluginApiBase, MissionCancelError } from "./harness/mission-cancel.js";
+import { resolveSandboxMissionRoot, type SandboxMissionRoute } from "./harness/sandbox.js";
+import { finalizeRuntimeCancelledRun } from "./harness/runtime-events.js";
+import { cancelLocalMissionRun, cancelMissionRunViaPlugin, MissionCancelError } from "./harness/mission-cancel.js";
 import { parseRuntimeConfigOverridesJson } from "./harness/runtime-config-overrides.js";
+import { adoptSessionTemplate, type SessionTemplateAdoption } from "./harness/session-template-adoption.js";
+import { writeArtifactFile } from "./adapters/_artifact-context.js";
 import { parseScaffoldLang, scaffoldTestsFromSpec } from "./harness/test-scaffold.js";
-import { assertValidRunId } from "./harness/run-id.js";
+import { assertValidRunId, generateRunId } from "./harness/run-id.js";
 import { parse as parseYaml } from "yaml";
 import { spawn, spawnSync } from "node:child_process";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
 import { readFileSync } from "node:fs";
-import { readFile as readFileAsync, writeFile as writeFileAsync } from "node:fs/promises";
+import { readFile as readFileAsync, writeFile as writeFileAsync, readdir, mkdir } from "node:fs/promises";
+import { exitCodeForRun } from "./harness/exit-codes.js";
+import { indexRuns, summarizeRuns, paretoFrontier } from "./harness/experience-store.js";
+import { BEST_OF_N_CAP, MIN_ARM_RUNS, attemptsToMatch, bestOfN, compareArms } from "./harness/run-comparison.js";
+import { exportRunToOtlp, type OtlpTraceExport } from "./harness/otel-export.js";
 import { getSpecTemplate, listSpecTemplates } from "./harness/spec-templates.js";
 import { judgeSpecAdherence, oneShotOpenAI } from "./harness/spec-judge.js";
 import { installTelemetryHooks } from "./harness/telemetry.js";
 import { projectDeliveryObservatory } from "./harness/delivery-observatory/project.js";
+import { acceptanceStatus, runAcceptance, writeAcceptanceReport } from "./harness/acceptance.js";
 
 import {
   createSandbox,
@@ -49,7 +65,8 @@ import {
 import { addAdapter, listAdapterTemplates } from "./harness/adapter-add.js";
 import { addSkill, checkSkill, listSkills } from "./harness/skill.js";
 import { recordManualVerdict } from "./harness/verdict.js";
-import type { VerdictValue } from "./schema/artifacts.js";
+import { SandboxesIndexSchema, type VerdictValue } from "./schema/artifacts.js";
+import { serveMcpStdio } from "./harness/mcp-server.js";
 
 function readPackageVersion(): string {
   try {
@@ -95,54 +112,36 @@ type RuntimeDryRunResult = {
 interface RuntimeRunOptions {
   /** UH-81 — CLI-time runtime_config overrides spread on top of the mission's own overrides. */
   extraRuntimeConfigOverrides?: Record<string, unknown>;
-  /** UH-82 — explicit per-run id; generated when absent. */
+  /** Canonical host root for OMP artifacts when execution is sandbox-routed. */
+  artifactRoot?: string;
+  /** UH-82 — explicit per-run id. */
   runId?: string;
+  /** Signal used by the CLI to stop an owned runtime process tree. */
+  cancellationSignal?: AbortSignal;
+  limits?: RuntimeLimits;
+}
+/** UH-81 — the merged `--runtime-config-overrides` a dry-run passes into a planner. */
+interface RuntimeDryRunOptions {
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
 }
 interface RuntimeWiring {
-  dryRun(root: string, missionPath: string): Promise<RuntimeDryRunResult>;
+  dryRun(root: string, missionPath: string, options?: RuntimeDryRunOptions): Promise<RuntimeDryRunResult>;
   run(root: string, missionPath: string, options?: RuntimeRunOptions): Promise<RuntimeRunResult>;
   surfaceBlocked: boolean;
 }
 const RUNTIME_WIRINGS: Record<string, RuntimeWiring> = {
-  hermes: { dryRun: dryRunHermes, run: (root, missionPath, opts) => runHermes(root, missionPath, opts), surfaceBlocked: false },
-  codex: { dryRun: dryRunCodex, run: (root, missionPath, opts) => runCodex(root, missionPath, opts), surfaceBlocked: true },
-  "oh-my-pi": { dryRun: dryRunOhMyPi, run: (root, missionPath, opts) => runOhMyPi(root, missionPath, opts), surfaceBlocked: true },
-  "hermes-proxy": { dryRun: dryRunHermesProxy, run: (root, missionPath, opts) => runHermesProxy(root, missionPath, opts), surfaceBlocked: true },
-  openrouter: { dryRun: dryRunOpenRouter, run: (root, missionPath, opts) => runOpenRouter(root, missionPath, opts), surfaceBlocked: true },
-  anthropic: { dryRun: dryRunAnthropic, run: (root, missionPath, opts) => runAnthropic(root, missionPath, opts), surfaceBlocked: true },
-  pi: { dryRun: dryRunPi, run: (root, missionPath, opts) => runPi(root, missionPath, opts), surfaceBlocked: true },
+  hermes: { dryRun: (root, missionPath, opts) => dryRunHermes(root, missionPath, opts), run: (root, missionPath, opts) => runHermes(root, missionPath, opts), surfaceBlocked: false },
+  codex: { dryRun: (root, missionPath, opts) => dryRunCodex(root, missionPath, opts), run: (root, missionPath, opts) => runCodex(root, missionPath, opts), surfaceBlocked: true },
+  "oh-my-pi": { dryRun: (root, missionPath, opts) => dryRunOhMyPi(root, missionPath, opts), run: (root, missionPath, opts) => runOhMyPi(root, missionPath, opts), surfaceBlocked: true },
+  "command-code": { dryRun: (root, missionPath, opts) => dryRunCommandCode(root, missionPath, opts), run: (root, missionPath, opts) => runCommandCode(root, missionPath, opts), surfaceBlocked: true },
+  "hermes-proxy": { dryRun: (root, missionPath, opts) => dryRunHermesProxy(root, missionPath, opts), run: (root, missionPath, opts) => runHermesProxy(root, missionPath, opts), surfaceBlocked: true },
+  openrouter: { dryRun: (root, missionPath, opts) => dryRunOpenRouter(root, missionPath, opts), run: (root, missionPath, opts) => runOpenRouter(root, missionPath, opts), surfaceBlocked: true },
+  anthropic: { dryRun: (root, missionPath, opts) => dryRunAnthropic(root, missionPath, opts), run: (root, missionPath, opts) => runAnthropic(root, missionPath, opts), surfaceBlocked: true },
+  pi: { dryRun: (root, missionPath, opts) => dryRunPi(root, missionPath, opts), run: (root, missionPath, opts) => runPi(root, missionPath, opts), surfaceBlocked: true },
+  "claude-code": { dryRun: (root, missionPath, opts) => dryRunClaudeCode(root, missionPath, opts), run: (root, missionPath, opts) => runClaudeCode(root, missionPath, opts), surfaceBlocked: true },
+  acp: { dryRun: (root, missionPath, opts) => dryRunAcp(root, missionPath, opts), run: (root, missionPath, opts) => runAcp(root, missionPath, opts), surfaceBlocked: true },
 };
 
-/**
- * Auto-route a mission invocation into its bound sandbox worktree.
- *
- * Mirrors `verifyMission`'s sandbox-routing: when a mission has an active
- * sandbox entry in `.harness/sandboxes/index.yaml`, the adapter is invoked
- * with the worktree path as `root` so prompts, artifacts, and diff capture
- * all see the worktree, not the canonical repo. Returns the original root
- * untouched when `--no-sandbox` is passed or no bound sandbox exists.
- */
-async function resolveMissionRoot(
-  root: string,
-  missionPath: string,
-  useSandbox: boolean,
-): Promise<{ effectiveRoot: string; sandbox?: { id: string; path: string; backend: string } }> {
-  if (!useSandbox) return { effectiveRoot: root };
-  let missionId: string;
-  try {
-    const raw = await readFileAsync(missionPath, "utf-8");
-    const parsed = parseYaml(raw) as { id?: unknown } | null;
-    if (!parsed || typeof parsed !== "object" || typeof parsed.id !== "string" || parsed.id.length === 0) {
-      return { effectiveRoot: root };
-    }
-    missionId = parsed.id;
-  } catch {
-    return { effectiveRoot: root };
-  }
-  const sandbox = await findBoundSandbox(root, missionId);
-  if (!sandbox) return { effectiveRoot: root };
-  return { effectiveRoot: sandbox.path, sandbox };
-}
 
 async function enforceRuntimeCapabilities(
   root: string,
@@ -166,26 +165,87 @@ async function enforceRuntimePreflight(
   await assertRuntimeRequirements(missionPath, runtime);
 }
 
+/**
+ * UH-101 semantic routing seam. Combines deterministic eligibility with a
+ * bounded TypeSafe System One recommendation over installed adapters, applying
+ * the project fleet as a Level 0 prefilter. Returns the composed decision so the
+ * caller can print it and act on `adapter` (null means no route was authorized).
+ */
+async function evaluateSemanticRoute(options: {
+  root: string;
+  missionPath: string;
+  force: boolean;
+  auto: boolean;
+  explain: boolean;
+  runId?: string;
+}): Promise<SemanticRouteDecision> {
+  const installed = (await runtimeRegistry.list(options.root))
+    .map((entry) => entry.id)
+    .filter((id): id is AdapterId => id in CAPABILITIES);
+  const mission = await loadMissionFile(options.missionPath);
+  const fleetAdapters = authorizedFleetAdapters(await loadFleetPolicy(options.root));
+  const decision = await chooseSemanticRoute({
+    mission,
+    available: installed,
+    force: options.force,
+    auto: options.auto,
+    ...(fleetAdapters ? { fleetAdapters } : {}),
+    missionDir: missionDir(options.root, mission.id),
+    missionId: mission.id,
+    ...(options.runId ? { runId: options.runId } : {}),
+  });
+  if (options.explain) {
+    console.log(formatAutoRouteExplain({ adapter: decision.adapter, reason: decision.reason, candidates: decision.candidates }));
+    console.log("");
+  }
+  console.log(formatSemanticRouteSummary(decision));
+  return decision;
+}
+
+/**
+ * The `Sandbox:` line that `mission run` and `mission dry-run` print, so the
+ * routing decision is always visible. `useSandbox` is whether sandbox routing
+ * was requested (i.e. `--no-sandbox` was absent).
+ */
+function sandboxRouteLine(routing: SandboxMissionRoute, useSandbox: boolean): string {
+  if (routing.sandbox) {
+    return `Sandbox: ${routing.sandbox.id} (${routing.sandbox.path})`;
+  }
+  return useSandbox
+    ? "Sandbox: none (project root)"
+    : "Sandbox: none (project root, --no-sandbox)";
+}
+
 async function installRuntimeCancelledEventHandler(
-  root: string,
+  artifactRoot: string,
   missionPath: string,
   runtime: string,
+  runId: string,
+  cancellationController: AbortController,
 ): Promise<() => void> {
   const mission = await loadMissionFile(missionPath);
   let handled = false;
-  const onSigterm = (): void => {
+  const onSignal = (signal: "SIGINT" | "SIGTERM"): void => {
     if (handled) return;
     handled = true;
-    appendRuntimeCancelledEvent({
-      root,
+    cancellationController.abort();
+    finalizeRuntimeCancelledRun({
+      root: artifactRoot,
       missionId: mission.id,
       runtime,
-      signal: "SIGTERM",
+      signal,
+      runId,
     });
     process.exit(143);
   };
+  const onSigint = (): void => onSignal("SIGINT");
+  const onSigterm = (): void => onSignal("SIGTERM");
+  process.once("SIGINT", onSigint);
   process.once("SIGTERM", onSigterm);
-  return () => process.removeListener("SIGTERM", onSigterm);
+  return () => {
+    process.removeListener("SIGINT", onSigint);
+    process.removeListener("SIGTERM", onSigterm);
+  };
 }
 
 const program = new Command();
@@ -387,12 +447,267 @@ program
       console.log(`Verified missions: ${s.verified_missions_count}`);
       console.log(`Promoted missions: ${s.promoted_missions_count}`);
       console.log(`Recent audit events: ${s.recent_audit_events}`);
+      console.log(`Acceptance evidence: proven ${s.acceptance.proven}, stale ${s.acceptance.stale}, failed ${s.acceptance.failed}, unproven ${s.acceptance.unproven}`);
+      const { liveRunCounts } = await import("./harness/live-runs.js");
+      const live = await liveRunCounts(root);
+      console.log(`Live runs: ${live.total} (orphaned: ${live.orphaned})`);
     } catch (err) {
       console.error((err as Error).message);
       process.exit(1);
     }
   });
 
+// uh ps — every live run discoverable from the project root.
+program
+  .command("ps")
+  .description("List live runs found from the project root (exit 3 when a run is orphaned)")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit discovered runs as JSON")
+  .option("--all", "Include recent settled runs (kept for 24h)")
+  .action(async (opts: { root?: string; json?: boolean; all?: boolean }) => {
+    const root = resolveRoot(opts.root);
+    try {
+      const { listLiveRuns, formatLiveRuns, liveRunsExitCode } = await import("./harness/live-runs.js");
+      const { records, orphaned } = await listLiveRuns(root, { includeSettled: opts.all === true });
+      if (opts.json) {
+        console.log(JSON.stringify({
+          schema_version: "uh.ps.v0",
+          generated_at: new Date().toISOString(),
+          orphaned,
+          runs: records,
+        }, null, 2));
+      } else {
+        console.log(formatLiveRuns(records));
+      }
+      process.exit(liveRunsExitCode(records));
+    } catch (err) {
+      console.error((err as Error).message);
+      process.exit(1);
+    }
+  });
+
+// uh kill — stop any run from the project root and prove it is dead.
+program
+  .command("kill")
+  .description("Stop live runs by id (or unique prefix), role, mission, team, --all, or --orphans")
+  .argument("[run-id]", "Run id, or a unique prefix of one")
+  .option("--role <role>", "Every team worker with this role")
+  .option("--mission <id>", "Every run of this mission, including its team workers")
+  .option("--team <id>", "A team: its workers first, then the team controller")
+  .option("--all", "Every live run discovered from the project root")
+  .option("--orphans", "Every run whose controller pid is gone")
+  .option("--force", "Skip the cancellation request and terminate the owned process tree immediately")
+  .option("--wait-ms <ms>", "How long to wait for a graceful exit before forcing (default: 10000)")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the kill report as JSON")
+  .action(async (runId: string | undefined, opts: {
+    role?: string; mission?: string; team?: string; all?: boolean; orphans?: boolean;
+    force?: boolean; waitMs?: string; root?: string; json?: boolean;
+  }) => {
+    const root = resolveRoot(opts.root);
+    const waitMs = opts.waitMs === undefined ? undefined : Number.parseInt(opts.waitMs, 10);
+    if (waitMs !== undefined && (!Number.isFinite(waitMs) || waitMs < 0)) {
+      console.error(`[FAIL] --wait-ms must be a non-negative integer of milliseconds, got: ${opts.waitMs}`);
+      process.exit(1);
+      return;
+    }
+    try {
+      const { killRuns, formatKillReport } = await import("./harness/kill.js");
+      const report = await killRuns(root, {
+        ...(runId !== undefined ? { runId } : {}),
+        ...(opts.role !== undefined ? { role: opts.role } : {}),
+        ...(opts.mission !== undefined ? { missionId: opts.mission } : {}),
+        ...(opts.team !== undefined ? { teamId: opts.team } : {}),
+        ...(opts.all === true ? { all: true } : {}),
+        ...(opts.orphans === true ? { orphans: true } : {}),
+        ...(opts.force === true ? { force: true } : {}),
+        ...(waitMs !== undefined ? { waitMs } : {}),
+      });
+      if (opts.json) console.log(JSON.stringify(report, null, 2));
+      else console.log(formatKillReport(report));
+      process.exit(report.exit_code);
+    } catch (err) {
+      console.error(`[FAIL] kill error:`);
+      console.error(`  error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+/** One resumed attempt for `uh resume` / `uh steer`, wired to the live CLI. */
+interface OperatorResumeRequest {
+  artifactRoot: string;
+  missionId: string;
+  missionPath: string;
+  runtime: string;
+  sourceRunId: string;
+  runId: string;
+  recoveryNotes: string;
+  report: boolean;
+}
+
+async function runOperatorResumedAttempt(request: OperatorResumeRequest): Promise<{ runId?: string; result?: { status?: string } }> {
+  const wiring = RUNTIME_WIRINGS[request.runtime];
+  if (!wiring) throw new Error(`Unknown runtime: ${request.runtime}`);
+  const routing = await resolveSandboxMissionRoot(request.artifactRoot, request.missionPath, true);
+  if (routing.error) throw new Error(routing.error);
+  const recovery = await resolveRuntimeRecoveryPolicy(routing.effectiveRoot, routing.missionPath, request.runtime, {});
+  return runWithRuntimeRecovery({
+    root: request.artifactRoot,
+    missionId: request.missionId,
+    runtime: request.runtime,
+    runId: request.runId,
+    recovery: recovery.recovery,
+    extraRuntimeConfigOverrides: { resume_from_run: request.sourceRunId, recovery_notes: request.recoveryNotes },
+    // The operator's own resume is authorized outside the automatic budget.
+    priorResumeOrigins: ["operator"],
+    run: async (attempt) => {
+      const res = await wiring.run(routing.effectiveRoot, routing.missionPath, { ...attempt, artifactRoot: request.artifactRoot });
+      return { ...res, runId: attempt.runId };
+    },
+  });
+}
+
+// uh resume — continue a settled run's native session as a new run.
+program
+  .command("resume")
+  .description("Resume a settled run's native session as a new run for the same mission")
+  .argument("<run-id>", "Run id, or a unique prefix of one")
+  .option("--notes <text>", "Text injected as the first instruction of the resumed turn")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the resume outcome as JSON")
+  .action(async (runId: string, opts: { notes?: string; root?: string; json?: boolean }) => {
+    const root = resolveRoot(opts.root);
+    try {
+      const { resumeRun } = await import("./harness/steer.js");
+      const result = await resumeRun(root, runId, opts.notes !== undefined ? { notes: opts.notes } : {},
+        { run: runOperatorResumedAttempt, cancel: (cancelRoot, missionId, id) => cancelLocalMissionRun(cancelRoot, missionId, id) });
+      if (opts.json) console.log(JSON.stringify(result, null, 2));
+      else console.log(`Resumed ${result.sourceRunId} as ${result.runId}`);
+    } catch (err) {
+      console.error(`[FAIL] resume error:`);
+      console.error(`  error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+// uh steer — cancel a live or settled run and resume it with a message.
+program
+  .command("steer")
+  .description("Cancel a run, then resume its native session with a message")
+  .argument("<run-id>", "Run id, or a unique prefix of one")
+  .argument("<message>", "Message injected as the first instruction of the resumed turn")
+  .option("--report", "Ask the worker to write a status report before continuing")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the steer outcome as JSON")
+  .action(async (runId: string, message: string, opts: { report?: boolean; root?: string; json?: boolean }) => {
+    const root = resolveRoot(opts.root);
+    try {
+      const { steerRun } = await import("./harness/steer.js");
+      const result = await steerRun(root, runId, message, { report: opts.report === true },
+        { run: runOperatorResumedAttempt, cancel: (cancelRoot, missionId, id) => cancelLocalMissionRun(cancelRoot, missionId, id) });
+      if (opts.json) console.log(JSON.stringify(result, null, 2));
+      else console.log(`Steered ${result.sourceRunId} into ${result.runId}`);
+    } catch (err) {
+      console.error(`[FAIL] steer error:`);
+      console.error(`  error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+// uh report — an instant, model-free status report of any run, from disk only.
+program
+  .command("report")
+  .description("Report what a run is doing right now from disk, without a model")
+  .argument("<run-id>", "Run id, or a unique prefix of one")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the report as JSON")
+  .option("--last <n>", "How many recent tool calls to project (default: 10)")
+  .option("--full", "Read the whole events.ndjson instead of its last 256 KB")
+  .action(async (runId: string, opts: { root?: string; json?: boolean; last?: string; full?: boolean }) => {
+    const root = resolveRoot(opts.root);
+    const last = opts.last === undefined ? undefined : Number.parseInt(opts.last, 10);
+    if (last !== undefined && (!Number.isFinite(last) || last <= 0)) {
+      console.error(`[FAIL] --last must be a positive integer, got: ${opts.last}`);
+      process.exit(1);
+      return;
+    }
+    try {
+      const { reportRun, formatRunReport } = await import("./harness/report.js");
+      const report = await reportRun(root, runId, {
+        ...(last !== undefined ? { last } : {}),
+        ...(opts.full === true ? { full: true } : {}),
+      });
+      if (opts.json) console.log(JSON.stringify(report, null, 2));
+      else console.log(formatRunReport(report));
+    } catch (err) {
+      console.error(`[FAIL] report error:`);
+      console.error(`  error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+// uh acceptance — real runtime evidence, separate from test and fixture status.
+const acceptanceCmd = program.command("acceptance").description("Run and inspect real runtime acceptance evidence");
+
+acceptanceCmd
+  .command("run")
+  .description("Run one registered capability or every capability for real")
+  .argument("[capability]", "Registered capability id")
+  .option("--all", "Run every registered capability")
+  .requiredOption("--workspace <dir>", "Fresh workspace root for acceptance artifacts")
+  .option("--runtime <id>", "Override the registry runtime")
+  .option("--model <id>", "Override the requested runtime model")
+  .option("--keep", "Retain the run workspace")
+  .option("--root <path>", "Harness repository root (default: cwd)")
+  .action(async (capability: string | undefined, opts: { all?: boolean; workspace: string; runtime?: string; model?: string; keep?: boolean; root?: string }) => {
+    if (opts.all && capability) {
+      console.error("[FAIL] <capability> and --all are mutually exclusive");
+      process.exit(1);
+      return;
+    }
+    try {
+      await runAcceptance(resolveRoot(opts.root), {
+        workspace: opts.workspace,
+        runtime: opts.runtime,
+        model: opts.model,
+        keep: opts.keep,
+        capabilities: capability ? [capability] : undefined,
+      });
+    } catch (error) {
+      console.error(`[FAIL] acceptance run: ${(error as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+acceptanceCmd
+  .command("status")
+  .description("Classify acceptance evidence by freshness and outcome")
+  .option("--json", "Emit JSON")
+  .option("--root <path>", "Harness repository root (default: cwd)")
+  .action(async (opts: { json?: boolean; root?: string }) => {
+    try {
+      const summary = await acceptanceStatus(resolveRoot(opts.root));
+      if (opts.json) console.log(JSON.stringify(summary, null, 2));
+      else console.log(`Acceptance evidence: proven ${summary.counts.proven}, stale ${summary.counts.stale}, failed ${summary.counts.failed}, unproven ${summary.counts.unproven}, fixture_only ${summary.counts.fixture_only}`);
+    } catch (error) {
+      console.error(`[FAIL] acceptance status: ${(error as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+acceptanceCmd
+  .command("report")
+  .description("Generate docs/acceptance/README.md from registry and latest evidence")
+  .option("--root <path>", "Harness repository root (default: cwd)")
+  .action(async (opts: { root?: string }) => {
+    try {
+      console.log(await writeAcceptanceReport(resolveRoot(opts.root)));
+    } catch (error) {
+      console.error(`[FAIL] acceptance report: ${(error as Error).message}`);
+      process.exit(1);
+    }
+  });
+
 // uh observatory snapshot --json
 // Read-only, safe-metadata-only projection for local operator surfaces. The
 // projector reads canonical .harness artifacts directly and never spawns a
@@ -422,6 +737,555 @@ observatoryCmd
     }
   });
 
+function renderAlignedTable(headers: string[], rows: string[][]): void {
+  const colWidths = headers.map((h, i) => Math.max(h.length, ...rows.map((r) => (r[i] ?? "").length)));
+  const headerLine = headers.map((h, i) => h.padEnd(colWidths[i])).join("  ");
+  const separatorLine = colWidths.map((w) => "-".repeat(w)).join("  ");
+  console.log(headerLine);
+  console.log(separatorLine);
+  for (const row of rows) {
+    console.log(row.map((cell, i) => cell.padEnd(colWidths[i])).join("  "));
+  }
+}
+
+observatoryCmd
+  .command("runs")
+  .description("List indexed runs or summarize run groups with Pareto frontier")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--mission <id>", "Filter by mission id")
+  .option("--group-by <dimension>", "Group runs by runtime, model, workflow_profile, stop_code, template, or tier")
+  .option("--json", "Emit raw structures as JSON")
+  .action(async (opts: { root?: string; mission?: string; groupBy?: string; json?: boolean }) => {
+    try {
+      const root = resolveRoot(opts.root);
+      if (opts.groupBy !== undefined) {
+        const validDimensions = ["runtime", "model", "workflow_profile", "stop_code", "template", "tier"] as const;
+        type ValidDimension = typeof validDimensions[number];
+        if (!validDimensions.includes(opts.groupBy as ValidDimension)) {
+          console.error(`Invalid --group-by: must be one of ${validDimensions.join(", ")}`);
+          process.exit(1);
+          return;
+        }
+        const groupBy = opts.groupBy as ValidDimension;
+        const records = await indexRuns(root, { missionId: opts.mission });
+        const summaries = summarizeRuns(records, groupBy);
+        const frontier = paretoFrontier(summaries);
+        const frontierSet = new Set(frontier);
+
+        if (opts.json) {
+          console.log(JSON.stringify({
+            summaries,
+            pareto_frontier: frontier,
+          }, null, 2));
+          return;
+        }
+
+        const headers = [groupBy.toUpperCase(), "RUNS", "PASSED", "SUCCESS_RATE", "MEAN_COST", "TOTAL_COST", "MEAN_DURATION", "PARETO"];
+        const rows = summaries.map((s) => {
+          const keyStr = s.key !== undefined && s.key !== null && s.key !== "" ? String(s.key) : "unknown";
+          const runsStr = String(s.runs);
+          const passedStr = String(s.passed);
+          const successRateStr = Number.isFinite(s.success_rate) ? `${(s.success_rate * 100).toFixed(1)}%` : "unknown";
+          const meanCostStr = s.mean_cost_usd !== undefined ? `$${s.mean_cost_usd.toFixed(4)}` : "unknown";
+          const totalCostStr = s.total_cost_usd !== undefined ? `$${s.total_cost_usd.toFixed(4)}` : "unknown";
+          const meanDurationStr = s.mean_duration_ms !== undefined ? `${Math.round(s.mean_duration_ms)}ms` : "unknown";
+          const paretoStr = frontierSet.has(s) ? "yes" : "no";
+          return [keyStr, runsStr, passedStr, successRateStr, meanCostStr, totalCostStr, meanDurationStr, paretoStr];
+        });
+
+        renderAlignedTable(headers, rows);
+        return;
+      }
+
+      const records = await indexRuns(root, { missionId: opts.mission });
+      if (opts.json) {
+        console.log(JSON.stringify(records, null, 2));
+        return;
+      }
+
+      const headers = ["MISSION_ID", "RUN_ID", "RUNTIME", "MODEL", "WORKFLOW_PROFILE", "STATUS", "STOP_CODE", "DURATION", "TOKENS", "COST", "COST_SOURCE"];
+      const rows = records.map((r) => {
+        const missionStr = r.mission_id || "unknown";
+        const runStr = r.run_id || "unknown";
+        const runtimeStr = r.runtime || "unknown";
+        const modelStr = r.model || "unknown";
+        const workflowStr = r.workflow_profile || "unknown";
+        const statusStr = r.status || "unknown";
+        const stopCodeStr = r.stop_code || "unknown";
+        const durationStr = r.duration_ms !== undefined ? `${r.duration_ms}ms` : "unknown";
+        const tokensStr = r.token_totals === undefined
+          ? "unknown"
+          : String((r.token_totals.input ?? 0) + (r.token_totals.output ?? 0)
+            + (r.token_totals.cache_read ?? 0) + (r.token_totals.cache_write ?? 0));
+        const costStr = r.cost_usd !== undefined ? `$${r.cost_usd.toFixed(4)}` : "unknown";
+        const costSourceStr = r.cost_source ?? "unknown";
+        return [missionStr, runStr, runtimeStr, modelStr, workflowStr, statusStr, stopCodeStr, durationStr, tokensStr, costStr, costSourceStr];
+      });
+
+      renderAlignedTable(headers, rows);
+    } catch (err) {
+      console.error(`[FAIL] observatory runs error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+// uh observatory compare --by <dimension> --a <value> --b <value>
+// Two arms of one indexed run set, compared on outcome (Wilson score interval,
+// never a bare percentage) and on cost, with the plain-repeats alternative made
+// explicit: a configuration only earns a "better" verdict against the option of
+// running the weaker arm more times at the same budget.
+observatoryCmd
+  .command("compare")
+  .description("Compare two run arms on outcome and cost with honest uncertainty")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--mission <id>", "Filter by mission id")
+  .option("--by <dimension>", "Compare arms by template, tier, model, or runtime")
+  .option("--a <value>", "Grouping value for arm A")
+  .option("--b <value>", "Grouping value for arm B")
+  .option("--json", "Emit the comparison as JSON")
+  .action(async (opts: { root?: string; mission?: string; by?: string; a?: string; b?: string; json?: boolean }) => {
+    const compareDimensions = ["template", "tier", "model", "runtime"] as const;
+    type CompareDimension = typeof compareDimensions[number];
+    if (!compareDimensions.includes(opts.by as CompareDimension)) {
+      console.error(`Invalid --by: must be one of ${compareDimensions.join(", ")}`);
+      process.exit(1);
+      return;
+    }
+    if (opts.a === undefined || opts.b === undefined) {
+      console.error("uh observatory compare requires --a <value> and --b <value>");
+      process.exit(1);
+      return;
+    }
+    try {
+      const root = resolveRoot(opts.root);
+      const by = opts.by as CompareDimension;
+      const valueA = opts.a;
+      const valueB = opts.b;
+      const records = await indexRuns(root, { missionId: opts.mission });
+      const keyOf = (record: (typeof records)[number]): string | undefined =>
+        by === "template" ? record.template_id : by === "tier" ? record.tier : record[by];
+      const comparison = compareArms(
+        records.filter((record) => keyOf(record) === valueA),
+        records.filter((record) => keyOf(record) === valueB),
+      );
+
+      const weakerRef: "a" | "b" = comparison.a.success_rate >= comparison.b.success_rate ? "b" : "a";
+      const strongerRef: "a" | "b" = weakerRef === "a" ? "b" : "a";
+      const weaker = comparison[weakerRef];
+      const stronger = comparison[strongerRef];
+      const weakerValue = weakerRef === "a" ? valueA : valueB;
+      const strongerValue = strongerRef === "a" ? valueA : valueB;
+      const attempts = attemptsToMatch(weaker.success_rate, stronger.success_rate);
+      const repeatsCost = attempts === undefined || weaker.mean_cost_usd === undefined
+        ? undefined
+        : attempts * weaker.mean_cost_usd;
+      const reachesTarget = attempts === undefined
+        ? false
+        : bestOfN(weaker.success_rate, attempts) >= stronger.success_rate;
+      const equalRates = comparison.a.success_rate === comparison.b.success_rate;
+
+      if (opts.json) {
+        console.log(JSON.stringify({
+          by,
+          a_value: valueA,
+          b_value: valueB,
+          comparison,
+          plain_repeats_of_weaker: {
+            arm: weakerRef,
+            value: weakerValue,
+            baseline_success_rate: weaker.success_rate,
+            target_success_rate: stronger.success_rate,
+            attempts,
+            reaches_target: reachesTarget,
+            mean_cost_usd: weaker.mean_cost_usd,
+            total_cost_usd: repeatsCost,
+          },
+        }, null, 2));
+        return;
+      }
+
+      const headers = ["ARM", "VALUE", "RUNS", "PASSED", "SUCCESS_RATE", "WILSON_95", "KNOWN_COST_RUNS", "MEAN_COST", "TOTAL_COST", "COST_PER_SUCCESS", "MEAN_DURATION"];
+      const armRow = (ref: "a" | "b", value: string, arm: typeof comparison.a) => [
+        ref.toUpperCase(),
+        value,
+        String(arm.runs),
+        String(arm.passed),
+        rateText(arm.success_rate),
+        `${rateText(arm.interval.low)} - ${rateText(arm.interval.high)}`,
+        String(arm.known_cost_runs),
+        moneyOrUnknown(arm.mean_cost_usd),
+        moneyOrUnknown(arm.total_cost_usd),
+        moneyOrUnknown(arm.cost_per_success_usd),
+        arm.mean_duration_ms === undefined ? "unknown" : `${Math.round(arm.mean_duration_ms)}ms`,
+      ];
+      renderAlignedTable(headers, [armRow("a", valueA, comparison.a), armRow("b", valueB, comparison.b)]);
+
+      console.log(`\nVerdict: ${verdictSentence(comparison, valueA, valueB)}`);
+      console.log(`Cost: ${comparison.cheaper_per_success === "unknown"
+        ? `cheaper per success is unknown (${costPerSuccessText(comparison.a, valueA)} vs ${costPerSuccessText(comparison.b, valueB)})`
+        : `${comparison.cheaper_per_success === "a" ? valueA : valueB} is cheaper per success (${costPerSuccessText(comparison.a, valueA)} vs ${costPerSuccessText(comparison.b, valueB)})`}`);
+      console.log(`Plain repeats: ${repeatsSentence({ weakerValue, strongerValue, weaker, stronger, attempts, reachesTarget, repeatsCost, equalRates })}`);
+    } catch (err) {
+      console.error(`[FAIL] observatory compare error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+function moneyOrUnknown(value: number | undefined): string {
+  return value === undefined ? "unknown" : `$${value.toFixed(4)}`;
+}
+
+function rateText(value: number): string {
+  return `${(value * 100).toFixed(1)}%`;
+}
+
+function intervalText(arm: { interval: { low: number; high: number } }): string {
+  return `${rateText(arm.interval.low)}-${rateText(arm.interval.high)}`;
+}
+
+function costPerSuccessText(arm: { cost_per_success_usd: number | undefined }, value: string): string {
+  return `${moneyOrUnknown(arm.cost_per_success_usd)} for ${value}`;
+}
+
+function verdictSentence(
+  comparison: ReturnType<typeof compareArms>,
+  valueA: string,
+  valueB: string,
+): string {
+  if (comparison.verdict === "insufficient_data") {
+    return `insufficient_data — ${valueA} has ${comparison.a.runs} run(s) and ${valueB} has ${comparison.b.runs}; at least ${MIN_ARM_RUNS} per arm are needed before any difference is reportable.`;
+  }
+  if (comparison.verdict === "no_clear_difference") {
+    return `no_clear_difference — the 95% Wilson intervals overlap (${intervalText(comparison.a)} vs ${intervalText(comparison.b)}), so ${rateText(comparison.a.success_rate)} vs ${rateText(comparison.b.success_rate)} is within noise.`;
+  }
+  const winner = comparison.verdict === "a_better" ? valueA : valueB;
+  const loser = comparison.verdict === "a_better" ? valueB : valueA;
+  const winnerArm = comparison.verdict === "a_better" ? comparison.a : comparison.b;
+  const loserArm = comparison.verdict === "a_better" ? comparison.b : comparison.a;
+  return `${comparison.verdict} — ${winner} beats ${loser} on success rate (${rateText(winnerArm.success_rate)} vs ${rateText(loserArm.success_rate)}) with non-overlapping 95% Wilson intervals (${intervalText(winnerArm)} vs ${intervalText(loserArm)}).`;
+}
+
+function repeatsSentence(context: {
+  weakerValue: string;
+  strongerValue: string;
+  weaker: { success_rate: number; mean_cost_usd: number | undefined };
+  stronger: { success_rate: number };
+  attempts: number | undefined;
+  reachesTarget: boolean;
+  repeatsCost: number | undefined;
+  equalRates: boolean;
+}): string {
+  const { weakerValue, strongerValue, weaker, stronger, attempts, reachesTarget, repeatsCost, equalRates } = context;
+  const target = rateText(stronger.success_rate);
+  if (equalRates) {
+    return stronger.success_rate === 0
+      ? "neither arm passed a run, so repeats cannot separate them yet."
+      : `both arms pass at ${target}, so repeating either one does not change the comparison.`;
+  }
+  if (attempts === undefined) {
+    return `none of ${weakerValue}'s runs passed, so no number of plain repeats reaches ${strongerValue}'s ${target}.`;
+  }
+  const costClause = repeatsCost === undefined
+    ? `cost unknown because ${weakerValue}'s mean cost per run is unknown`
+    : `about $${repeatsCost.toFixed(2)} at its ${moneyOrUnknown(weaker.mean_cost_usd)} mean cost per run`;
+  if (reachesTarget) {
+    return `${attempts} plain repeat(s) of ${weakerValue} at ${rateText(weaker.success_rate)} would match ${strongerValue}'s ${target}, ${costClause}.`;
+  }
+  if (stronger.success_rate >= 1) {
+    return `no number of plain repeats of ${weakerValue} at ${rateText(weaker.success_rate)} reaches ${strongerValue}'s ${target} success rate; ${attempts} repeats (the ${BEST_OF_N_CAP} cap) would cost ${costClause}.`;
+  }
+  return `${attempts} plain repeats of ${weakerValue} (the ${BEST_OF_N_CAP} cap) reach only ${rateText(bestOfN(weaker.success_rate, BEST_OF_N_CAP))}, short of ${strongerValue}'s ${target}, ${costClause}.`;
+}
+
+observatoryCmd
+  .command("export")
+  .description("Export a mission run trace in OpenTelemetry (OTLP) format")
+  .argument("<mission-id>", "Mission id")
+  .option("--otlp", "Export trace in OpenTelemetry (OTLP) format (required)")
+  .option("--run-id <id>", "Specific run id (default: latest run)")
+  .option("--out <file>", "Output file path (must resolve inside project root)")
+  .option("--include-tool-targets", "Include tool targets in spans")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .action(async (missionId: string, opts: { otlp?: boolean; runId?: string; out?: string; includeToolTargets?: boolean; root?: string }) => {
+    if (!opts.otlp) {
+      console.error("uh observatory export requires --otlp");
+      process.exit(1);
+      return;
+    }
+    try {
+      const root = resolveRoot(opts.root);
+
+      let targetOutPath: string | undefined;
+      if (opts.out) {
+        targetOutPath = path.resolve(root, opts.out);
+        if (!isPathWithin(targetOutPath, path.resolve(root))) {
+          console.error(`--out path must resolve inside the project root: ${opts.out}`);
+          process.exit(1);
+          return;
+        }
+      }
+
+      let selectedRunId = opts.runId;
+      const missionRunsDirectory = path.join(root, ".harness", "missions", missionId, "runs");
+      if (!selectedRunId) {
+        const latestPointerPath = path.join(root, ".harness", "missions", missionId, "latest.json");
+        try {
+          const raw = await readFileAsync(latestPointerPath, "utf-8");
+          const parsed = JSON.parse(raw) as { run_id?: string };
+          if (parsed.run_id) {
+            selectedRunId = parsed.run_id;
+          }
+        } catch {
+          // latest.json absent or invalid
+        }
+      }
+
+      if (!selectedRunId) {
+        const indexPath = path.join(missionRunsDirectory, "index.json");
+        try {
+          const raw = await readFileAsync(indexPath, "utf-8");
+          const parsed = JSON.parse(raw) as { entries?: Array<{ run_id: string }> };
+          if (Array.isArray(parsed.entries) && parsed.entries.length > 0) {
+            selectedRunId = parsed.entries[parsed.entries.length - 1].run_id;
+          }
+        } catch {
+          // index.json absent or invalid
+        }
+      }
+
+      if (!selectedRunId) {
+        try {
+          const entries = await readdir(missionRunsDirectory, { withFileTypes: true });
+          const dirNames = entries.filter((e) => e.isDirectory()).map((e) => e.name).sort();
+          if (dirNames.length > 0) {
+            selectedRunId = dirNames[dirNames.length - 1];
+          }
+        } catch {
+          // runs directory absent
+        }
+      }
+
+      if (!selectedRunId) {
+        console.error(`No runs found for mission: ${missionId}`);
+        process.exit(1);
+        return;
+      }
+
+      const runDir = path.join(missionRunsDirectory, selectedRunId);
+      const trace: OtlpTraceExport = await exportRunToOtlp(runDir, {
+        includeToolTargets: opts.includeToolTargets === true,
+      });
+
+      const jsonStr = JSON.stringify(trace, null, 2);
+      if (targetOutPath) {
+        await mkdir(path.dirname(targetOutPath), { recursive: true });
+        await writeFileAsync(targetOutPath, jsonStr + "\n", "utf-8");
+      } else {
+        console.log(jsonStr);
+      }
+    } catch (err) {
+      console.error(`[FAIL] observatory export error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+// uh experiment plan|run|report — matched-budget experiments over a seeded
+// search/held-out task split. `runExperiment` takes the runner by injection;
+// `run` wires a real per-runtime runner, while `plan` and `report` read and
+// summarize artifacts and never start a runtime.
+const experimentCmd = program
+  .command("experiment")
+  .description("Plan, run, and report matched-budget experiments with a held-out split");
+
+experimentCmd
+  .command("plan")
+  .description("Print the seeded search/held-out split and the arm-interleaved run plan")
+  .argument("<id>", "Experiment id")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .action(async (id: string, opts: { root?: string }) => {
+    try {
+      const root = resolveRoot(opts.root);
+      const { loadExperiment, splitTasks, planExperiment } = await import("./harness/experiment.js");
+      const spec = await loadExperiment(root, id);
+      const split = splitTasks(spec);
+      const plan = planExperiment(spec);
+      console.log(`Experiment: ${spec.id} — ${spec.title}`);
+      console.log(`Seed: ${split.seed === undefined ? "explicit held-out split" : split.seed}`);
+      console.log(`Split sizes: search ${split.search.length}, held_out ${split.held_out.length}`);
+      console.log(`Plan: ${plan.length} run(s)`);
+      console.log("");
+      renderAlignedTable(
+        ["TASK", "ARM", "ATTEMPT", "SPLIT"],
+        plan.map((entry) => [entry.task, entry.arm, String(entry.attempt), entry.split]),
+      );
+    } catch (err) {
+      console.error(`[FAIL] experiment plan error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+experimentCmd
+  .command("run")
+  .description("Run a planned experiment under a matched budget")
+  .argument("<id>", "Experiment id")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the per-run records as JSON")
+  .action(async (id: string, opts: { root?: string; json?: boolean }) => {
+    try {
+      const root = resolveRoot(opts.root);
+      const { loadExperiment, runExperiment } = await import("./harness/experiment.js");
+      const spec = await loadExperiment(root, id);
+      const outcome = await runExperiment(root, spec, { runner: experimentRuntimeRunner(root) });
+      if (opts.json) {
+        console.log(JSON.stringify(outcome.runs, null, 2));
+        return;
+      }
+      console.log(`Experiment: ${outcome.experiment_id}`);
+      console.log(`Seed: ${outcome.seed === undefined ? "explicit held-out split" : outcome.seed}`);
+      console.log(`Split sizes: search ${outcome.split.search.length}, held_out ${outcome.split.held_out.length}`);
+      console.log(`Runs: ${outcome.executed} executed, ${outcome.skipped} skipped${outcome.stop_reason ? ` (budget: ${outcome.stop_reason})` : ""}`);
+      console.log(`Plan: ${outcome.plan_path}`);
+      console.log(`Runs: ${outcome.runs_path}`);
+      console.log(`Report: ${outcome.report_path}`);
+    } catch (err) {
+      console.error(`[FAIL] experiment run error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+experimentCmd
+  .command("report")
+  .description("Summarize an experiment against the plain-repeat baseline")
+  .argument("<id>", "Experiment id")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .option("--json", "Emit the report as JSON")
+  .action(async (id: string, opts: { root?: string; json?: boolean }) => {
+    try {
+      const root = resolveRoot(opts.root);
+      const { loadExperiment, loadExperimentRuns, summarizeExperiment, experimentVerdictLine, experimentRepeatsLine } =
+        await import("./harness/experiment.js");
+      const spec = await loadExperiment(root, id);
+      const runs = await loadExperimentRuns(root, id);
+      const report = summarizeExperiment(runs, spec);
+      if (opts.json) {
+        console.log(JSON.stringify(report, null, 2));
+        return;
+      }
+      console.log(`Experiment: ${report.experiment_id} — ${report.title}`);
+      console.log(`Seed: ${report.seed === undefined ? "explicit held-out split" : report.seed}`);
+      console.log(`Split sizes: search ${report.split_sizes.search}, held_out ${report.split_sizes.held_out}`);
+      console.log(`Baseline arm: ${report.baseline}`);
+      for (const split of report.splits) {
+        console.log("");
+        console.log(`[${split.split}] ${split.task_count} task(s)`);
+        renderAlignedTable(
+          ["ARM", "RUNS", "PASSED", "SUCCESS_RATE", "WILSON_95", "MEAN_DENIALS", "GUARD_TAMPER", "CONTAINMENT_ESCAPE", "MEAN_COST"],
+          split.arms.map((arm) => [
+            arm.arm,
+            String(arm.runs),
+            String(arm.passed),
+            rateText(arm.success_rate),
+            `${rateText(arm.interval.low)} - ${rateText(arm.interval.high)}`,
+            arm.mean_denials === undefined ? "unknown" : arm.mean_denials.toFixed(2),
+            String(arm.guard_tamper_stops),
+            String(arm.containment_escape_stops),
+            arm.mean_cost_usd === undefined ? "unknown" : `$${arm.mean_cost_usd.toFixed(4)}`,
+          ]),
+        );
+        for (const comparison of split.comparisons) {
+          console.log(`Verdict (${comparison.a} vs ${comparison.b}): ${experimentVerdictLine(comparison.comparison, comparison.a, comparison.b)}`);
+        }
+        for (const repeat of split.baseline_repeats) {
+          console.log(`Plain repeats (${repeat.baseline_arm} vs ${repeat.arm}): ${experimentRepeatsLine(repeat)}`);
+        }
+      }
+    } catch (err) {
+      console.error(`[FAIL] experiment report error: ${(err as Error).message}`);
+      process.exit(1);
+    }
+  });
+
+/**
+ * The real per-runtime runner for `uh experiment run`. It resolves the arm's
+ * session template, executes the task mission through the same runtime wiring
+ * `mission run` uses, and reads the settled stop_code, denials, guard classes,
+ * and cost back out of the run directory.
+ */
+function experimentRuntimeRunner(root: string): import("./harness/experiment.js").ExperimentRunner {
+  return async (request) => {
+    const missionPath = path.join(root, ".harness", "missions", request.task, "mission.yaml");
+    let runtime = "hermes";
+    let overrides: Record<string, unknown> = {};
+    if (request.arm.template !== undefined) {
+      const adoption = await adoptSessionTemplate({ root, missionPath, templateId: request.arm.template });
+      runtime = adoption.runtime;
+      overrides = { ...adoption.runtimeConfigOverrides };
+    }
+    overrides = { ...overrides, ...(request.arm.runtime_config_overrides ?? {}) };
+    const wiring = RUNTIME_WIRINGS[runtime];
+    if (!wiring) throw new Error(`Unknown runtime for arm "${request.arm.id}": ${runtime}`);
+    const runId = generateRunId();
+    const result = await wiring.run(root, missionPath, {
+      runId,
+      ...(Object.keys(overrides).length > 0 ? { extraRuntimeConfigOverrides: overrides } : {}),
+    });
+    const finalRunId = result.runId ?? runId;
+    const runDir = path.join(root, ".harness", "missions", request.task, "runs", finalRunId);
+    const settled = await readExperimentSettlement(runDir);
+    return { run_id: finalRunId, mission_id: request.task, runtime, ...settled };
+  };
+}
+
+async function readExperimentSettlement(runDir: string): Promise<{
+  status?: string;
+  stop_code?: string;
+  denials?: number;
+  denial_classes?: string[];
+  cost_usd?: number;
+  duration_ms?: number;
+}> {
+  let status: string | undefined;
+  let stopCode: string | undefined;
+  let denials: number | undefined;
+  let costUsd: number | undefined;
+  let durationMs: number | undefined;
+  try {
+    const parsed = parseYaml(await readFileAsync(path.join(runDir, "runtime-result.yaml"), "utf8")) as Record<string, unknown>;
+    if (typeof parsed.status === "string") status = parsed.status;
+    if (typeof parsed.cost_usd === "number") costUsd = parsed.cost_usd;
+  } catch { /* artifact may be absent */ }
+  try {
+    const parsed = JSON.parse(await readFileAsync(path.join(runDir, "runtime-control.json"), "utf8")) as Record<string, unknown>;
+    if (typeof parsed.status === "string") status = parsed.status;
+    if (typeof parsed.stop_code === "string") stopCode = parsed.stop_code;
+    if (typeof parsed.denials === "number") denials = parsed.denials;
+    if (typeof parsed.started_at === "string" && typeof parsed.heartbeat_at === "string") {
+      const elapsed = Date.parse(parsed.heartbeat_at) - Date.parse(parsed.started_at);
+      if (Number.isFinite(elapsed) && elapsed >= 0) durationMs = elapsed;
+    }
+  } catch { /* artifact may be absent */ }
+  const denialClasses: string[] = [];
+  try {
+    const log = await readFileAsync(path.join(runDir, "tool-guard.log"), "utf8");
+    for (const line of log.split(/\r?\n/)) {
+      const trimmed = line.trim();
+      if (trimmed === "") continue;
+      try {
+        const entry = JSON.parse(trimmed) as { class?: unknown };
+        if (typeof entry.class === "string" && entry.class !== "allow") denialClasses.push(entry.class);
+      } catch { /* a truncated guard line is not a denial we can classify */ }
+    }
+  } catch { /* no guard log */ }
+  return {
+    ...(status !== undefined ? { status } : {}),
+    ...(stopCode !== undefined ? { stop_code: stopCode } : {}),
+    ...(denials !== undefined ? { denials } : {}),
+    ...(denialClasses.length > 0 ? { denial_classes: denialClasses } : {}),
+    ...(costUsd !== undefined ? { cost_usd: costUsd } : {}),
+    ...(durationMs !== undefined ? { duration_ms: durationMs } : {}),
+  };
+}
+
 // uh verify
 program
   .command("verify")
@@ -823,7 +1687,7 @@ adapterCmd
     for (const c of caps) {
       const tag = probed[c.id] ? ` (${probed[c.id]})` : "";
       console.log(`${c.id} — ${c.display_name}${tag}`);
-      console.log(`  cost_class: ${c.cost_class}  max_context_tokens: ${c.max_context_tokens}  sandbox: ${c.sandbox}`);
+      console.log(`  cost_class: ${c.cost_class}  max_context_tokens: ${c.max_context_tokens ?? "model-dependent (unknown)"}  sandbox: ${c.sandbox}`);
       console.log(`  tools: shell=${c.tools.shell} fs_read=${c.tools.fs_read} fs_write=${c.tools.fs_write} network=${c.tools.network}`);
     }
   });
@@ -879,6 +1743,38 @@ const missionCmd = program
   .command("mission")
   .description("Create and execute missions against configured runtimes");
 
+missionCmd.command("review-prepare")
+  .description("Capture complete review inputs and emit an advisory independent-review mission; does not start a runtime")
+  .argument("<id>", "New review mission id")
+  .requiredOption("--sources <json>", "JSON array of {missionId, workspaceRoot?}; roots default to each source mission's bound workspace")
+  .requiredOption("--runtime <runtime>", "oh-my-pi, command-code, or claude-code")
+  .requiredOption("--model <model>", "Explicit independent reviewer model")
+  .option("--workflow <profile>", "Review workflow", "research-docs")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .action(async (id: string, opts: { sources: string; runtime: string; model: string; workflow: string; root?: string }) => {
+    try {
+      const sources = z.array(z.object({ missionId: z.string().min(1), workspaceRoot: z.string().min(1).optional() }).strict()).min(1).parse(JSON.parse(opts.sources));
+      const runtime = z.enum(["oh-my-pi", "command-code", "claude-code"]).parse(opts.runtime);
+      console.log(JSON.stringify(await prepareIndependentReview(resolveRoot(opts.root), { id, sources, runtime, model: opts.model, workflow: opts.workflow }), null, 2));
+    } catch (error) {
+      console.error(`[FAIL] mission review-prepare: ${(error as Error).message}`);
+      process.exitCode = 1;
+    }
+  });
+
+missionCmd.command("review-collect")
+  .description("Validate review provenance and evidence; never grants human acceptance or promotes source work")
+  .argument("<id>", "Review mission id")
+  .option("--root <path>", "Canonical project root (default: cwd)")
+  .action(async (id: string, opts: { root?: string }) => {
+    try {
+      console.log(JSON.stringify(await collectIndependentReview(resolveRoot(opts.root), id), null, 2));
+    } catch (error) {
+      console.error(`[FAIL] mission review-collect: ${(error as Error).message}`);
+      process.exitCode = 1;
+    }
+  });
+
 missionCmd
   .command("create")
   .description("Create a scaffold mission packet")
@@ -1027,15 +1923,92 @@ missionCmd
   .command("dry-run")
   .description("Show what command would be executed without running it")
   .argument("[file]", "Mission file path")
-  .option("--runtime <runtime>", "Runtime to use (default: hermes)")
+  .option("--runtime <runtime>", "Runtime to use (default: hermes, or the template adapter)")
   .option("--root <path>", "Root directory (default: cwd)")
   .option("--no-sandbox", "Do not auto-route into the mission's bound sandbox worktree")
   .option("--force", "Bypass mission capability matching and runtime_requirements for this runtime")
-  .action(async (file: string | undefined, opts: { runtime?: string; root?: string; sandbox: boolean; force?: boolean }) => {
+  .option("--template <id>", "Adopt a session template from .harness/templates/<id>.yaml")
+  .option("--runtime-config-overrides <json>", "JSON object of runtime_config overrides applied on top of the template and mission file")
+  .option("--auto", "Auto-select the cheapest installed adapter that satisfies the mission's runtime_requirements")
+  .option("--explain", "With --auto, print the adapter decision matrix")
+  .action(async (file: string | undefined, opts: { runtime?: string; root?: string; sandbox: boolean; force?: boolean; template?: string; runtimeConfigOverrides?: string; auto?: boolean; explain?: boolean }) => {
     const root = resolveRoot(opts.root);
-    const runtime = opts.runtime || "hermes";
     const filePath = file || `${root}/examples/missions/documentation-spine.yaml`;
 
+    if (opts.auto && opts.runtime) {
+      console.error("[FAIL] --auto and --runtime are mutually exclusive");
+      process.exit(1);
+      return;
+    }
+    if (opts.auto && opts.template !== undefined) {
+      console.error("[BLOCKED] --auto cannot be combined with --template");
+      process.exit(exitCodeForRun("blocked"));
+      return;
+    }
+
+    let extraRuntimeConfigOverrides: Record<string, unknown> | undefined;
+    if (opts.runtimeConfigOverrides !== undefined) {
+      try {
+        extraRuntimeConfigOverrides = parseRuntimeConfigOverridesJson(opts.runtimeConfigOverrides);
+      } catch (e) {
+        console.error(`[BLOCKED] ${(e as Error).message}`);
+        process.exit(exitCodeForRun("blocked"));
+        return;
+      }
+    }
+
+    let templateAdoption: SessionTemplateAdoption | undefined;
+    if (opts.template !== undefined) {
+      try {
+        templateAdoption = await adoptSessionTemplate({ root, missionPath: filePath, templateId: opts.template, explicitRuntime: opts.runtime });
+      } catch (err) {
+        console.error(`[BLOCKED] session template refused:`);
+        console.error(`  error: ${(err as Error).message}`);
+        process.exit(exitCodeForRun("blocked"));
+        return;
+      }
+      extraRuntimeConfigOverrides = {
+        ...templateAdoption.runtimeConfigOverrides,
+        ...(extraRuntimeConfigOverrides ?? {}),
+      };
+    }
+
+    let runtime = templateAdoption ? templateAdoption.runtime : (opts.runtime || "hermes");
+    let semanticModel: string | undefined;
+    let routeRequested = opts.auto === true;
+    if (!routeRequested && !opts.runtime && !templateAdoption) {
+      try {
+        routeRequested = (await loadMissionFile(filePath)).decision_policy?.enabled === true;
+      } catch {
+        routeRequested = false;
+      }
+    }
+    if (routeRequested) {
+      try {
+        const decision = await evaluateSemanticRoute({
+          root,
+          missionPath: filePath,
+          force: opts.force === true,
+          auto: opts.auto === true,
+          explain: opts.explain === true,
+        });
+        if (!decision.adapter) {
+          console.error(`[BLOCKED] auto-route: ${decision.reason}`);
+          process.exit(exitCodeForRun("blocked"));
+          return;
+        }
+        runtime = decision.adapter;
+        if (decision.model) semanticModel = decision.model;
+        console.log(`Auto-routed to: ${runtime} — ${decision.reason}`);
+      } catch (err) {
+        console.error(`[FAIL] auto-route error: ${(err as Error).message}`);
+        process.exit(1);
+        return;
+      }
+    }
+    if (semanticModel && !(extraRuntimeConfigOverrides && "model" in extraRuntimeConfigOverrides)) {
+      extraRuntimeConfigOverrides = { ...(extraRuntimeConfigOverrides ?? {}), model: semanticModel };
+    }
     const wiring = RUNTIME_WIRINGS[runtime];
     if (!wiring) {
       console.error(`Unknown runtime: ${runtime}`);
@@ -1051,16 +2024,29 @@ missionCmd
       process.exit(1);
       return;
     }
-    const routing = await resolveMissionRoot(root, filePath, opts.sandbox);
+    const routing = await resolveSandboxMissionRoot(root, filePath, opts.sandbox);
+    if (routing.error) {
+      console.error(`[BLOCKED] sandbox routing failed:`);
+      console.error(`  error: ${routing.error}`);
+      process.exit(1);
+      return;
+    }
     if (routing.sandbox?.backend === "container") {
       console.error(`[BLOCKED] container sandbox mission dry-run requires an OpenSandbox adapter-execution bridge; refusing host execution for sandbox ${routing.sandbox.id}`);
       process.exit(1);
       return;
     }
-    if (routing.sandbox) {
-      console.log(`Sandbox: ${routing.sandbox.id} (${routing.sandbox.path})`);
+    // Dry-run never blocks on a missing binding: it only shows where the run
+    // would go before anything is spent.
+    console.log(sandboxRouteLine(routing, opts.sandbox));
+    if (templateAdoption) {
+      const overridden = templateAdoption.description.overridden_by_mission;
+      console.log(
+        `Template: ${templateAdoption.description.template_id} (tier=${templateAdoption.description.tier}, containment=${templateAdoption.description.containment}, overridden_by_mission=${overridden.length > 0 ? overridden.join(",") : "none"})`,
+      );
+      console.log(`Template effective overrides: ${JSON.stringify(extraRuntimeConfigOverrides ?? {})}`);
     }
-    const result = await wiring.dryRun(routing.effectiveRoot, filePath);
+    const result = await wiring.dryRun(routing.effectiveRoot, routing.missionPath, { extraRuntimeConfigOverrides });
     if (result.errors.length > 0) {
       console.log("[FAIL] dry-run errors:");
       for (const e of result.errors) {
@@ -1089,10 +2075,12 @@ missionCmd
     "--runtime-config-overrides <json>",
     "JSON object of runtime_config overrides applied on top of the mission file (e.g. '{\"model\":\"gpt-5\"}')",
   )
+  .option("--template <id>", "Adopt a session template from .harness/templates/<id>.yaml")
   .option("--run-id <id>", "Explicit run id; auto-generated if omitted")
   .option("--auto", "Auto-select the cheapest installed adapter that satisfies the mission's runtime_requirements")
   .option("--explain", "With --auto, print the adapter decision matrix")
-  .action(async (file: string | undefined, opts: { runtime?: string; root?: string; sandbox: boolean; force?: boolean; runtimeConfigOverrides?: string; runId?: string; auto?: boolean; explain?: boolean }) => {
+  .option("--quiet", "Do not print the runtime's stdout or stderr")
+  .action(async (file: string | undefined, opts: { runtime?: string; root?: string; sandbox: boolean; force?: boolean; runtimeConfigOverrides?: string; template?: string; runId?: string; auto?: boolean; explain?: boolean; quiet?: boolean }) => {
     const root = resolveRoot(opts.root);
     const filePath = file || `${root}/examples/missions/documentation-spine.yaml`;
 
@@ -1101,29 +2089,53 @@ missionCmd
       process.exit(1);
       return;
     }
-    let runtime = opts.runtime || "hermes";
-    if (opts.auto) {
+    if (opts.auto && opts.template !== undefined) {
+      console.error("[BLOCKED] --auto cannot be combined with --template");
+      process.exit(exitCodeForRun("blocked"));
+      return;
+    }
+    let templateAdoption: SessionTemplateAdoption | undefined;
+    if (opts.template !== undefined) {
       try {
-        const installed = (await runtimeRegistry.list(root))
-          .map((entry) => entry.id)
-          .filter((id): id is AdapterId => id in CAPABILITIES);
-        const mission = await loadMissionFile(filePath);
-        // --force bypasses runtime_requirements in the preflight below, so it
-        // must also bypass the auto-route requirements filter; otherwise
-        // `--auto --force` would still be blocked here.
-        const decision = chooseAdapter(mission, installed, CAPABILITIES, {
-          ignoreRequirements: opts.force === true,
+        templateAdoption = await adoptSessionTemplate({ root, missionPath: filePath, templateId: opts.template, explicitRuntime: opts.runtime });
+      } catch (err) {
+        console.error(`[BLOCKED] session template refused:`);
+        console.error(`  error: ${(err as Error).message}`);
+        process.exit(exitCodeForRun("blocked"));
+        return;
+      }
+    }
+    let runtime = templateAdoption ? templateAdoption.runtime : (opts.runtime || "hermes");
+    let semanticModel: string | undefined;
+    // Route when `--auto` is passed, or when an unpinned mission activates its
+    // own `decision_policy`; an explicit `--runtime`/`--template` always wins.
+    let routeRequested = opts.auto === true;
+    if (!routeRequested && !opts.runtime && !templateAdoption) {
+      try {
+        routeRequested = (await loadMissionFile(filePath)).decision_policy?.enabled === true;
+      } catch {
+        routeRequested = false;
+      }
+    }
+    if (routeRequested) {
+      try {
+        // --force bypasses runtime_requirements in the preflight below, so the
+        // routing seam waives the same requirements filter.
+        const decision = await evaluateSemanticRoute({
+          root,
+          missionPath: filePath,
+          force: opts.force === true,
+          auto: opts.auto === true,
+          explain: opts.explain === true,
+          runId: opts.runId,
         });
-        if (opts.explain) {
-          console.log(formatAutoRouteExplain(decision));
-          console.log("");
-        }
         if (!decision.adapter) {
           console.error(`[BLOCKED] auto-route: ${decision.reason}`);
-          process.exit(1);
+          process.exit(exitCodeForRun("blocked"));
           return;
         }
         runtime = decision.adapter;
+        if (decision.model) semanticModel = decision.model;
         console.log(`Auto-routed to: ${runtime} — ${decision.reason}`);
       } catch (err) {
         console.error(`[FAIL] auto-route error: ${(err as Error).message}`);
@@ -1154,13 +2166,41 @@ missionCmd
       console.error(`[BLOCKED] runtime preflight failed:`);
       console.error(`  error: ${(err as Error).message}`);
       console.error(`  pass --force to bypass this safety check`);
-      process.exit(1);
+      process.exit(exitCodeForRun("blocked"));
+      return;
+    }
+    const routing = await resolveSandboxMissionRoot(root, filePath, opts.sandbox);
+    if (routing.error) {
+      console.error(`[BLOCKED] sandbox routing failed:`);
+      console.error(`  error: ${routing.error}`);
+      process.exit(exitCodeForRun("blocked"));
       return;
     }
-    const routing = await resolveMissionRoot(root, filePath, opts.sandbox);
     if (routing.sandbox?.backend === "container") {
       console.error(`[BLOCKED] container sandbox mission run requires an OpenSandbox adapter-execution bridge; refusing host execution for sandbox ${routing.sandbox.id}`);
-      process.exit(1);
+      process.exit(exitCodeForRun("blocked"));
+      return;
+    }
+    if (opts.sandbox && !routing.sandbox) {
+      // A guarded worker running in the project root edits the operator's live
+      // working tree, so root execution is only reachable through an explicit
+      // --no-sandbox. Refuse before any run directory or process exists.
+      const blockedMissionId = routing.missionId ?? "unknown";
+      console.error(`[BLOCKED] mission ${blockedMissionId} has no bound sandbox; create one with "uh sandbox create <sandbox-id> --mission ${blockedMissionId}" or pass --no-sandbox to run in the project root`);
+      const blockedRunId = opts.runId ?? generateRunId();
+      const blockedRunDir = path.relative(
+        path.resolve(root),
+        path.join(root, ".harness", "missions", blockedMissionId, "runs", blockedRunId),
+      ).replace(/\\/g, "/");
+      console.log(`UH_RESULT ${JSON.stringify({
+        mission_id: blockedMissionId,
+        run_id: blockedRunId,
+        runtime,
+        status: "blocked",
+        exit_code: exitCodeForRun("blocked"),
+        run_dir: blockedRunDir,
+      })}`);
+      process.exit(exitCodeForRun("blocked"));
       return;
     }
     let extraRuntimeConfigOverrides: Record<string, unknown> | undefined;
@@ -1169,66 +2209,177 @@ missionCmd
         extraRuntimeConfigOverrides = parseRuntimeConfigOverridesJson(opts.runtimeConfigOverrides);
       } catch (e) {
         console.error(`[BLOCKED] ${(e as Error).message}`);
-        process.exit(1);
+        process.exit(exitCodeForRun("blocked"));
         return;
       }
     }
+    if (templateAdoption) {
+      // Mission values already won inside the template merge; an explicit
+      // --runtime-config-overrides still wins over both.
+      extraRuntimeConfigOverrides = {
+        ...templateAdoption.runtimeConfigOverrides,
+        ...(extraRuntimeConfigOverrides ?? {}),
+      };
+    }
+    // A semantic model recommendation applies only when no explicit CLI override
+    // already pins the model.
+    if (semanticModel && !(extraRuntimeConfigOverrides && "model" in extraRuntimeConfigOverrides)) {
+      extraRuntimeConfigOverrides = { ...(extraRuntimeConfigOverrides ?? {}), model: semanticModel };
+    }
+    try {
+      await assertFleetAdmission(root, filePath, runtime, extraRuntimeConfigOverrides);
+    } catch (err) {
+      console.error(`[BLOCKED] ${(err as Error).message}`);
+      console.error(`  authorize the route under fleet.routes in .harness/project.yaml; --force does not bypass spend authorization`);
+      process.exit(exitCodeForRun("blocked"));
+      return;
+    }
     console.log(`Running mission: ${filePath}`);
     console.log(`Runtime: ${runtime}`);
     if (opts.runId) {
       console.log(`Run id: ${opts.runId}`);
     }
-    if (routing.sandbox) {
-      console.log(`Sandbox: ${routing.sandbox.id} (${routing.sandbox.path})`);
-    }
+    console.log(sandboxRouteLine(routing, opts.sandbox));
     if (extraRuntimeConfigOverrides) {
       const keys = Object.keys(extraRuntimeConfigOverrides);
       console.log(`Runtime config overrides: ${keys.length} key(s) — ${keys.join(", ")}`);
     }
+    const runId = opts.runId ?? generateRunId();
     console.log("");
     let result: { exitCode: number; stdout: string; stderr: string; result?: { status?: string; errors?: string[] }; runId?: string };
-    let uninstallCancelHandler: (() => void) | null = null;
+    const cancellationController = new AbortController();
+    let recovery: { missionId: string; recovery: unknown };
     try {
-      uninstallCancelHandler = await installRuntimeCancelledEventHandler(root, filePath, runtime);
-      result = await wiring.run(routing.effectiveRoot, filePath, { extraRuntimeConfigOverrides, runId: opts.runId });
+      recovery = await resolveRuntimeRecoveryPolicy(routing.effectiveRoot, routing.missionPath, runtime, extraRuntimeConfigOverrides);
+      result = await runWithRuntimeRecovery({
+        root, runtime, runId, ...recovery, extraRuntimeConfigOverrides,
+        cancellationSignal: cancellationController.signal,
+        run: async (attempt) => {
+          const uninstall = await installRuntimeCancelledEventHandler(root, routing.missionPath, runtime, attempt.runId, cancellationController);
+          try {
+            const runRes = await wiring.run(routing.effectiveRoot, routing.missionPath, {
+              ...attempt, artifactRoot: root, cancellationSignal: cancellationController.signal,
+            });
+            return { ...runRes, runId: attempt.runId };
+          } finally { uninstall(); }
+        },
+      });
     } catch (err) {
       console.log("[FAIL] mission run error:");
       console.log(`  error: ${(err as Error).message}`);
-      process.exit(1);
+      process.exit(exitCodeForRun("failed"));
       return;
-    } finally {
-      if (uninstallCancelHandler) uninstallCancelHandler();
     }
-    if (!opts.runId && result.runId) {
+    const missionId = recovery.missionId;
+    const finalRunId = result.runId ?? runId;
+    const runDir = path.join(root, ".harness", "missions", missionId, "runs", finalRunId);
+    const relativeRunDir = path.relative(path.resolve(root), runDir).replace(/\\/g, "/");
+
+    if (templateAdoption) {
+      // Record the adopted template beside the adapter's own per-run
+      // artifacts (e.g. tool-guard.json) using the shared write helper.
+      try {
+        const missionArtifactDir = path.join(root, ".harness", "missions", missionId);
+        await mkdir(runDir, { recursive: true });
+        await writeArtifactFile(
+          missionArtifactDir,
+          path.join(runDir, "session-template.json"),
+          JSON.stringify(templateAdoption.description, null, 2),
+        );
+      } catch (err) {
+        console.error(`[WARN] failed to record adopted session template: ${(err as Error).message}`);
+      }
+    }
+
+    if (result.runId && (!opts.runId || result.runId !== runId)) {
       console.log(`Run id: ${result.runId}`);
     }
-    if (result.stdout) {
-      console.log(result.stdout);
+    if (!opts.quiet) {
+      if (result.stdout) {
+        console.log(result.stdout);
+      }
+      if (result.stderr) {
+        console.error(result.stderr);
+      }
     }
-    if (result.stderr) {
-      console.error(result.stderr);
+
+    let controlStatus: string | undefined;
+    let controlStopCode: string | undefined;
+    try {
+      const controlPath = path.join(runDir, "runtime-control.json");
+      const controlData = JSON.parse(await readFileAsync(controlPath, "utf8"));
+      controlStatus = controlData?.status;
+      controlStopCode = controlData?.stop_code;
+    } catch {
+      // artifact not present
     }
+
+    let resultYamlStatus: string | undefined;
+    let resultYamlStopCode: string | undefined;
+    try {
+      const resultPath = path.join(runDir, "runtime-result.yaml");
+      const resultData = parseYaml(await readFileAsync(resultPath, "utf8")) as Record<string, unknown>;
+      resultYamlStatus = typeof resultData?.status === "string" ? resultData.status : undefined;
+      resultYamlStopCode = typeof resultData?.stop_code === "string" ? resultData.stop_code : undefined;
+    } catch {
+      // artifact not present
+    }
+
+    let status: string;
+    if (result.exitCode === 130 || controlStopCode === "cancelled" || controlStatus === "cancelled" || resultYamlStatus === "cancelled") {
+      status = "cancelled";
+    } else if (wiring.surfaceBlocked && result.result?.status === "blocked") {
+      status = "blocked";
+    } else if (controlStatus === "blocked" || resultYamlStatus === "blocked") {
+      status = "blocked";
+    } else if (result.exitCode === 0 && (resultYamlStatus === "passed" || controlStatus === "passed" || result.result?.status === "passed" || (!resultYamlStatus && !controlStatus))) {
+      status = "passed";
+    } else {
+      status = controlStatus ?? resultYamlStatus ?? result.result?.status ?? (result.exitCode === 0 ? "passed" : "failed");
+    }
+
+    const finalStopCode = controlStopCode ?? resultYamlStopCode;
+    const runExitCode = exitCodeForRun(status, finalStopCode);
+
     if (wiring.surfaceBlocked && result.result?.status === "blocked") {
       console.log(`[BLOCKED] mission classified as blocked`);
       for (const e of result.result.errors ?? []) {
         console.log(`  error: ${e}`);
       }
-      process.exit(1);
     }
-    if (result.exitCode !== 0) {
+    else if (result.exitCode !== 0) {
       console.log(`[FAIL] mission exited with code ${result.exitCode}`);
-      process.exit(result.exitCode);
     }
+
+    const settlementPayload: {
+      mission_id: string;
+      run_id: string;
+      runtime: string;
+      status: string;
+      stop_code?: string;
+      exit_code: number;
+      run_dir: string;
+    } = {
+      mission_id: missionId,
+      run_id: finalRunId,
+      runtime,
+      status,
+      ...(finalStopCode ? { stop_code: finalStopCode } : {}),
+      exit_code: runExitCode,
+      run_dir: relativeRunDir,
+    };
+    console.log(`UH_RESULT ${JSON.stringify(settlementPayload)}`);
+    process.exit(runExitCode);
   });
 
 missionCmd
   .command("cancel")
-  .description("Cancel an in-flight mission run via the Hermes plugin API")
+  .description("Cancel an owned local mission run; use --plugin-url only for plugin-managed runs")
   .requiredOption("--mission <id>", "Mission id (validated; run lookup uses --run-id)")
   .requiredOption("--run-id <id>", "Run id to cancel")
   .option("--root <path>", "Root directory (default: cwd)")
-  .option("--plugin-url <url>", "Hermes plugin API base URL", defaultPluginApiBase())
-  .action(async (opts: { mission: string; runId: string; root?: string; pluginUrl: string }) => {
+  .option("--plugin-url <url>", "Explicit Hermes plugin API base URL for plugin-managed runs")
+  .action(async (opts: { mission: string; runId: string; root?: string; pluginUrl?: string }) => {
     const root = resolveRoot(opts.root);
     try {
       assertSafeMissionId(opts.mission);
@@ -1247,8 +2398,10 @@ missionCmd
       return;
     }
     try {
-      const result = await cancelMissionRunViaPlugin(opts.pluginUrl, opts.runId);
-      console.log(`Cancelled run ${opts.runId} for mission ${opts.mission} (status: ${result.status})`);
+      const result = opts.pluginUrl
+        ? await cancelMissionRunViaPlugin(opts.pluginUrl, opts.runId)
+        : await cancelLocalMissionRun(root, opts.mission, opts.runId);
+      console.log(`Run ${opts.runId} for mission ${opts.mission} settled with status: ${result.status}`);
     } catch (err) {
       if (err instanceof MissionCancelError) {
         if (err.code === "already_finished") {
@@ -1291,6 +2444,15 @@ missionCmd
       }
     }
     const canonicalMissionPath = path.join(root, ".harness", "missions", missionId, "mission.yaml");
+    for (const rt of requested) {
+      try {
+        await assertFleetAdmission(root, canonicalMissionPath, rt);
+      } catch (err) {
+        console.error(`[BLOCKED] ${rt}: ${(err as Error).message}`);
+        process.exit(1);
+        return;
+      }
+    }
     if (opts.force !== true) {
       for (const rt of requested) {
         try {
@@ -1348,7 +2510,7 @@ missionCmd
 
 missionCmd
   .command("run-team")
-  .description("Run a team-shape mission: fan out to N workers in their own worktrees, then ask the leader to integrate")
+  .description("Run resource-bounded worker waves in separate worktrees, then mechanically integrate and verify; no leader model is invoked")
   .argument("<mission-id>", "Mission id (must exist in .harness/missions/, with team shape)")
   .option("--root <path>", "Root directory (default: cwd)")
   .option("--base-ref <ref>", "Base git ref for worker / leader worktrees (default: HEAD)")
@@ -1385,59 +2547,48 @@ missionCmd
       process.exit(1);
       return;
     }
-    // UH-71 schema validates the structural mission packet. The team-specific
-    // `shape`/`team` fields ride alongside and are validated separately by
-    // the team-run planner.
+    // UH-71 schema validates the structural mission packet and the team shape,
+    // so the typed value below is the single source for dispatch.
     const { validateMission } = await import("./schema/mission.js");
+    let validatedMission: MissionDocument;
     try {
-      validateMission(parsed);
+      validatedMission = validateMission(parsed);
     } catch (err) {
       console.error(`[FAIL] mission validation failed: ${(err as Error).message}`);
       process.exit(1);
       return;
     }
-    if ((parsed as { shape?: unknown }).shape !== "team") {
+    if (validatedMission.shape !== "team") {
       console.error(`[FAIL] mission ${missionId} is not a team-shape mission. Add 'shape: team' and a 'team:' block, or use 'uh mission run'.`);
       process.exit(1);
       return;
     }
-    const team = (parsed as { team?: unknown }).team;
-    if (!team || typeof team !== "object") {
+    if (!validatedMission.team) {
       console.error(`[FAIL] mission ${missionId} declares shape: team but has no 'team:' block.`);
       process.exit(1);
       return;
     }
-    // Codex P2: validate workers is an array before dereferencing .length.
-    // A malformed mission (shape:team with no workers, or workers not an
-    // array) used to throw a raw TypeError on the log line below; now it
-    // surfaces as a normal CLI error.
-    const workersRaw = (team as { workers?: unknown }).workers;
-    if (!Array.isArray(workersRaw) || workersRaw.length === 0) {
-      console.error(`[FAIL] mission ${missionId} has shape: team but team.workers is missing, empty, or not an array.`);
-      process.exit(1);
-      return;
-    }
-    const leaderRaw = (team as { leader?: unknown }).leader;
-    if (!leaderRaw || typeof leaderRaw !== "object") {
-      console.error(`[FAIL] mission ${missionId} has shape: team but team.leader is missing.`);
-      process.exit(1);
-      return;
-    }
     const teamMission = {
-      id: missionId,
-      team: team as { workers: { role: string; adapter: string; count?: number }[]; leader: { adapter: string } },
-      integration_report_path: (parsed as { integration_report_path?: string }).integration_report_path,
+      id: validatedMission.id,
+      team: validatedMission.team,
+      integration_report_path: validatedMission.integration_report_path,
     };
     const { runTeamMission } = await import("./harness/team-run.js");
     const { verifyMission } = await import("./harness/verify.js");
     console.log(`Running team mission ${missionId} with ${teamMission.team.workers.length} worker spec(s)`);
     try {
       const result = await runTeamMission(teamMission, root, {
-        runnerFor: (adapter) => async (rt, effectiveRoot, missionPath) => {
+        runnerFor: (adapter) => async (rt, effectiveRoot, missionPath, runtimeOptions) => {
           const wiring = RUNTIME_WIRINGS[adapter];
           if (!wiring) throw new Error(`Unknown adapter: ${adapter}`);
           void rt;
-          return wiring.run(effectiveRoot, missionPath);
+          await assertFleetAdmission(root, missionPath, adapter);
+          const recovery = await resolveRuntimeRecoveryPolicy(effectiveRoot, missionPath, adapter);
+          return runWithRuntimeRecovery({
+            root: runtimeOptions.artifactRoot, runtime: adapter, runId: runtimeOptions.runId,
+            ...recovery, onAttempt: runtimeOptions.onAttempt,
+            run: (attempt) => wiring.run(effectiveRoot, missionPath, { ...runtimeOptions, ...attempt }),
+          });
         },
         verifier: async (workRoot, mid) => verifyMission(workRoot, mid, { useSandbox: false }),
         baseRef: opts.baseRef,
@@ -1800,4 +2951,24 @@ tuiCmd
     });
   });
 
+// uh mcp
+const mcpCmd = program
+  .command("mcp")
+  .description("Model Context Protocol (MCP) server commands");
+
+mcpCmd
+  .command("serve")
+  .description("Serve newline-delimited JSON-RPC MCP server on stdin/stdout")
+  .option("--root <path>", "Root directory (default: cwd)")
+  .action(async (opts: { root?: string }) => {
+    const root = resolveRoot(opts.root);
+    try {
+      await serveMcpStdio({ root, version: VERSION }, process.stdin, process.stdout);
+      process.exit(0);
+    } catch (err) {
+      process.stderr.write(`uh mcp serve: ${err instanceof Error ? err.message : String(err)}\n`);
+      process.exit(1);
+    }
+  });
+
 await program.parseAsync();
diff --git a/src/extensions/tool-guard/claude-code-hook.ts b/src/extensions/tool-guard/claude-code-hook.ts
new file mode 100644
index 0000000..9e88e2a
--- /dev/null
+++ b/src/extensions/tool-guard/claude-code-hook.ts
@@ -0,0 +1,70 @@
+import { appendFile, readFile } from "node:fs/promises";
+import { ToolGuardArtifactSchema, type ToolGuardArtifact } from "../../schema/runtime-control.js";
+import { decideToolCall, toolTargetForLog } from "../../harness/tool-guard.js";
+
+function record(value: unknown): Record<string, unknown> | undefined {
+  return value && typeof value === "object" && !Array.isArray(value) ? value as Record<string, unknown> : undefined;
+}
+
+function deny(reason: string): void {
+  process.stdout.write(JSON.stringify({
+    hookSpecificOutput: {
+      hookEventName: "PreToolUse",
+      permissionDecision: "deny",
+      permissionDecisionReason: reason,
+    },
+  }));
+}
+
+async function main(): Promise<void> {
+  const policyPath = process.env.UH_TOOL_GUARD_POLICY;
+  const logPath = process.env.UH_TOOL_GUARD_LOG;
+  if (!policyPath || !logPath) {
+    deny("UH Claude Code guard policy is not configured; refusing the tool call");
+    return;
+  }
+
+  let policy: ToolGuardArtifact;
+  try {
+    policy = ToolGuardArtifactSchema.parse(JSON.parse(await readFile(policyPath, "utf8")));
+  } catch {
+    deny("UH Claude Code guard policy could not be loaded; refusing the tool call");
+    return;
+  }
+
+  const input = record(JSON.parse(await new Promise<string>((resolve, reject) => {
+    let body = "";
+    process.stdin.setEncoding("utf8");
+    process.stdin.on("data", (chunk: string) => { body += chunk; });
+    process.stdin.on("end", () => resolve(body));
+    process.stdin.on("error", reject);
+  })));
+  if (!input) {
+    deny("UH Claude Code guard received invalid hook input; refusing the tool call");
+    return;
+  }
+
+  const toolName = typeof input.tool_name === "string" ? input.tool_name : "unknown";
+  const decision = decideToolCall(
+    policy,
+    toolName,
+    input.tool_input,
+    policy.worker_root,
+    { allowControllerCommands: policy.controller_commands === true },
+  );
+  const logEntry = decision.deny
+    ? { ts: new Date().toISOString(), tool: toolName, target: decision.deny.target ?? toolTargetForLog(toolName, input.tool_input), class: decision.deny.class, reason: decision.deny.reason }
+    : { ts: new Date().toISOString(), tool: toolName, target: toolTargetForLog(toolName, input.tool_input), class: "allow" };
+  try {
+    await appendFile(logPath, JSON.stringify(logEntry) + "\n", "utf8");
+  } catch {
+    deny("UH Claude Code guard audit log could not be written; refusing the tool call");
+    return;
+  }
+  if (decision.deny) deny(decision.deny.reason);
+
+}
+
+void main().catch((error) => {
+  deny(`UH Claude Code guard failed closed: ${error instanceof Error ? error.message : String(error)}`);
+});
diff --git a/src/extensions/tool-guard/cmdc-hook.ts b/src/extensions/tool-guard/cmdc-hook.ts
new file mode 100644
index 0000000..0690921
--- /dev/null
+++ b/src/extensions/tool-guard/cmdc-hook.ts
@@ -0,0 +1,42 @@
+import { appendFile, readFile } from "node:fs/promises";
+import { decideToolCall, toolTargetForLog } from "../../harness/tool-guard.js";
+import { ToolGuardPolicySchema } from "../../schema/runtime-control.js";
+
+type AppliedPolicy = ReturnType<typeof ToolGuardPolicySchema.parse> & { worker_root: string; protected_paths?: string[] };
+
+async function main(): Promise<void> {
+  const chunks: Buffer[] = [];
+  for await (const chunk of process.stdin) chunks.push(Buffer.from(chunk));
+  let request: Record<string, unknown> = {};
+  try { request = JSON.parse(Buffer.concat(chunks).toString("utf8")) as Record<string, unknown>; } catch { return; }
+  const policyPath = process.env.UH_TOOL_GUARD_POLICY;
+  if (!policyPath) return;
+  let raw: Record<string, unknown>;
+  try { raw = JSON.parse(await readFile(policyPath, "utf8")) as Record<string, unknown>; } catch { return; }
+  const { schema_version: _schema, worker_root, protected_paths, controller_commands: controllerCommands, ...fields } = raw;
+  const policy = {
+    ...ToolGuardPolicySchema.parse(fields),
+    worker_root: String(worker_root ?? process.cwd()),
+    protected_paths: Array.isArray(protected_paths) ? protected_paths.map(String) : undefined,
+  } as AppliedPolicy;
+  const tool = typeof request.tool_name === "string" ? request.tool_name : "";
+  const input = request.tool_input;
+  const logPath = process.env.UH_TOOL_GUARD_LOG;
+  const callId = typeof request.tool_call_id === "string" ? request.tool_call_id : typeof request.toolCallId === "string" ? request.toolCallId : undefined;
+  const decision = decideToolCall(policy, tool, input, policy.worker_root, { allowControllerCommands: controllerCommands === true });
+  const logEntry = decision.deny
+    ? { ts: new Date().toISOString(), call_id: callId, tool, class: decision.deny.class, target: decision.deny.target ?? toolTargetForLog(tool, input), reason: decision.deny.reason }
+    : { ts: new Date().toISOString(), call_id: callId, tool, class: "allow", target: toolTargetForLog(tool, input) };
+  let logged = false;
+  if (logPath) {
+    try { await appendFile(logPath, `${JSON.stringify(logEntry)}\n`, "utf8"); logged = true; } catch { logged = false; }
+  }
+  if (!logged) {
+    process.stdout.write(JSON.stringify({ continue: true, hookSpecificOutput: { hookEventName: "PreToolUse", permissionDecision: "deny", permissionDecisionReason: "CONTRACT: guard log could not be written; refusing to continue with permissions enabled." } }));
+    return;
+  }
+  if (!decision.deny) return;
+  process.stdout.write(JSON.stringify({ continue: true, hookSpecificOutput: { hookEventName: "PreToolUse", permissionDecision: "deny", permissionDecisionReason: decision.deny.reason } }));
+}
+
+await main();
diff --git a/src/extensions/tool-guard/omp.ts b/src/extensions/tool-guard/omp.ts
new file mode 100644
index 0000000..d38099d
--- /dev/null
+++ b/src/extensions/tool-guard/omp.ts
@@ -0,0 +1,39 @@
+import { appendFile, readFile } from "node:fs/promises";
+import { decideToolCall, toolTargetForLog } from "../../harness/tool-guard.js";
+import { ToolGuardPolicySchema } from "../../schema/runtime-control.js";
+
+type ToolCallEvent = { toolName?: string; input?: unknown };
+type PiLike = { on(event: "tool_call", callback: (event: ToolCallEvent) => unknown): void };
+
+type AppliedPolicy = ReturnType<typeof ToolGuardPolicySchema.parse> & { worker_root: string; protected_paths?: string[] };
+let loadedPath = "";
+let loaded: AppliedPolicy | undefined;
+
+async function policy(): Promise<AppliedPolicy | undefined> {
+  const policyPath = process.env.UH_TOOL_GUARD_POLICY;
+  if (!policyPath) return undefined;
+  if (!loaded || loadedPath !== policyPath) {
+    const raw = JSON.parse(await readFile(policyPath, "utf8")) as Record<string, unknown>;
+    const { schema_version: _schema, worker_root, protected_paths, controller_commands: _controllerCommands, ...fields } = raw;
+    loaded = { ...ToolGuardPolicySchema.parse(fields), worker_root: String(worker_root ?? process.cwd()), protected_paths: Array.isArray(protected_paths) ? protected_paths.map(String) : undefined };
+    loadedPath = policyPath;
+  }
+  return loaded;
+}
+
+async function record(tool: string, input: unknown, denial: NonNullable<ReturnType<typeof decideToolCall>["deny"]>): Promise<void> {
+  const logPath = process.env.UH_TOOL_GUARD_LOG;
+  if (!logPath) return;
+  await appendFile(logPath, `${JSON.stringify({ ts: new Date().toISOString(), tool, class: denial.class, target: denial.target ?? toolTargetForLog(tool, input), reason: denial.reason })}\n`, "utf8").catch(() => {});
+}
+
+export default function (pi: PiLike): void {
+  pi.on("tool_call", async (event) => {
+    const applied = await policy();
+    if (!applied) return undefined;
+    const decision = decideToolCall(applied, event.toolName ?? "", event.input, applied.worker_root);
+    if (!decision.deny) return undefined;
+    await record(event.toolName ?? "", event.input, decision.deny);
+    return { block: true, reason: decision.deny.reason };
+  });
+}
diff --git a/src/harness/acceptance.ts b/src/harness/acceptance.ts
new file mode 100644
index 0000000..27957ce
--- /dev/null
+++ b/src/harness/acceptance.ts
@@ -0,0 +1,702 @@
+import { execFile, spawn } from "node:child_process";
+import { cp, lstat, mkdir, readFile, readdir, rm, stat, symlink, writeFile } from "node:fs/promises";
+import path from "node:path";
+import { promisify } from "node:util";
+import { parse, stringify } from "yaml";
+import { z } from "zod";
+import { initializeHarness } from "./init.js";
+import { AcceptanceEvidenceSchema, AcceptanceRegistryEntrySchema, AcceptanceRegistrySchema, type AcceptanceEvidence, type AcceptanceExpected } from "../schema/acceptance.js";
+
+const execFileAsync = promisify(execFile);
+const UNKNOWN: string = "unknown";
+export type AcceptanceFacts = Record<string, unknown>;
+export type AcceptanceState = "proven" | "stale" | "failed" | "unproven" | "fixture_only";
+
+/**
+ * Registry entries may declare `support_shim`. The shared schema module owns
+ * the base contract, so the runner layers the optional field on where it
+ * consumes it and keeps every other field strict.
+ */
+const SupportShimRegistryEntrySchema = AcceptanceRegistryEntrySchema.extend({ support_shim: z.string().min(1).optional() });
+export type AcceptanceRegistryEntry = z.infer<typeof SupportShimRegistryEntrySchema>;
+export type AcceptanceRegistry = { schema_version: "uh.acceptance-registry.v0"; entries: Record<string, AcceptanceRegistryEntry> };
+
+/**
+ * Evidence records layer the CLI outcome of the mission-run child onto the
+ * shared schema module (same pattern as `support_shim`): the runner always
+ * writes `cli`, records written before it existed may omit it, so the read
+ * side keeps it optional. `exit_code` is null only when no CLI process ran
+ * (wrapper-unavailable evidence).
+ */
+export const AcceptanceCliOutcomeSchema = z.object({
+  exit_code: z.number().int().nullable(),
+  stderr_tail: z.string(),
+  stdout_tail: z.string(),
+}).strict();
+export type AcceptanceCliOutcome = z.infer<typeof AcceptanceCliOutcomeSchema>;
+const AcceptanceEvidenceRecordSchema = AcceptanceEvidenceSchema.extend({ cli: AcceptanceCliOutcomeSchema.optional() });
+export type AcceptanceEvidenceRecord = z.infer<typeof AcceptanceEvidenceRecordSchema>;
+
+export async function loadAcceptanceRegistry(root: string): Promise<AcceptanceRegistry> {
+  const raw = await readFile(path.join(root, "acceptance", "registry.yaml"), "utf8");
+  return AcceptanceRegistrySchema.extend({ entries: z.record(z.string().min(1), SupportShimRegistryEntrySchema) }).parse(parse(raw));
+}
+
+function readPath(value: unknown, key: string): unknown {
+  if (!value || typeof value !== "object") return undefined;
+  return (value as Record<string, unknown>)[key];
+}
+
+function compareValue(expected: unknown, observed: unknown, field: string, mismatches: AcceptanceEvidence["mismatches"]): void {
+  if (expected && typeof expected === "object" && !Array.isArray(expected)) {
+    for (const [key, value] of Object.entries(expected as Record<string, unknown>)) {
+      compareValue(value, readPath(observed, key), `${field}.${key}`, mismatches);
+    }
+    return;
+  }
+  if (expected !== observed) mismatches.push({ field, expected, observed });
+}
+
+function hasForwardSlashPaths(value: unknown, key = ""): boolean {
+  if (typeof value === "string") {
+    return !/(?:path|scope)$/i.test(key) || !value.includes("\\");
+  }
+  if (Array.isArray(value)) return value.every((item) => hasForwardSlashPaths(item, key));
+  if (!value || typeof value !== "object") return true;
+  return Object.entries(value as Record<string, unknown>).every(([childKey, childValue]) => hasForwardSlashPaths(childValue, childKey));
+}
+
+export function compareAcceptanceFacts(expected: AcceptanceExpected, observed: AcceptanceFacts): AcceptanceEvidence["mismatches"] {
+  const mismatches: AcceptanceEvidence["mismatches"] = [];
+  for (const [field, expectedValue] of Object.entries(expected)) {
+    if (field === "fact_sources") continue;
+    if (field === "required_files") {
+      const files = observed.files;
+      const requiredFiles = Array.isArray(expectedValue) ? expectedValue.filter((file): file is string => typeof file === "string") : [];
+      if (!Array.isArray(files) || requiredFiles.some((file) => !files.includes(file))) {
+        mismatches.push({ field, expected: expectedValue, observed: files });
+      }
+      continue;
+    }
+    if (field === "required_records") {
+      const records = observed.records && typeof observed.records === "object" ? observed.records : observed;
+      compareValue(expectedValue, records, field, mismatches);
+      continue;
+    }
+    if (field === "guardian_receipt") {
+      if (expectedValue === true && (observed.settlement_confirmed !== true || observed.guardian_receipt !== true)) {
+        mismatches.push({ field, expected: true, observed: { settlement_confirmed: observed.settlement_confirmed, guardian_receipt: observed.guardian_receipt } });
+      }
+      continue;
+    }
+    if (field === "path_style") {
+      if (expectedValue !== observed.path_style) mismatches.push({ field, expected: expectedValue, observed: observed.path_style });
+      continue;
+    }
+    const rawObserved = observed[field];
+    const fieldValue = field === "resumed" && rawObserved === undefined ? false : rawObserved;
+    const fieldObserved = field === "workers" && Array.isArray(rawObserved)
+      ? Object.fromEntries(rawObserved.flatMap((worker) => {
+          if (!worker || typeof worker !== "object") return [];
+          const record = worker as Record<string, unknown>;
+          return typeof record.id === "string" ? [[record.id, record]] : [];
+        }))
+      : field === "outputs" && Array.isArray(observed.workers)
+        ? Object.fromEntries(observed.workers.flatMap((worker) => {
+            if (!worker || typeof worker !== "object") return [];
+            const record = worker as Record<string, unknown>;
+            const outputs = Array.isArray(record.outputs) ? record.outputs : [];
+            const passed = outputs.length > 0 && outputs.every((output) => output && typeof output === "object" && (output as Record<string, unknown>).status === "passed");
+            return typeof record.id === "string" ? [[record.id, passed ? "passed" : "failed"]] : [];
+          }))
+        : fieldValue;
+    compareValue(expectedValue, fieldObserved, field, mismatches);
+  }
+  return mismatches;
+}
+
+
+export function classifyAcceptance(
+  evidence: Pick<AcceptanceEvidence, "outcome" | "checked_at"> & Partial<Pick<AcceptanceEvidence, "harness_commit">> | null,
+  freshnessDays: number,
+  now = new Date(),
+  currentCommit?: string,
+): AcceptanceState {
+  if (!evidence) return "unproven";
+  if (evidence.outcome === "failed") return "failed";
+  if (currentCommit && evidence.harness_commit && evidence.harness_commit !== currentCommit) return "stale";
+  const age = now.getTime() - Date.parse(evidence.checked_at);
+  return Number.isFinite(age) && age <= freshnessDays * 86_400_000 ? "proven" : "stale";
+}
+
+async function latestEvidence(evidenceRoot: string, capability: string): Promise<AcceptanceEvidenceRecord | null> {
+  try {
+    const file = path.join(evidenceRoot, capability, "latest.json");
+    return AcceptanceEvidenceRecordSchema.parse(JSON.parse(await readFile(file, "utf8")));
+  } catch {
+    return null;
+  }
+}
+
+export async function acceptanceStatus(root: string, now = new Date()): Promise<{ counts: Record<AcceptanceState, number>; failed: string[]; unproven: string[]; states: Record<string, AcceptanceState> }> {
+  const registry = await loadAcceptanceRegistry(root);
+  const currentCommit = await gitCommit(root);
+  const evidenceRoot = path.join(root, "acceptance", "evidence");
+  const counts: Record<AcceptanceState, number> = { proven: 0, stale: 0, failed: 0, unproven: 0, fixture_only: 0 };
+  const failed: string[] = [];
+  const unproven: string[] = [];
+  const states: Record<string, AcceptanceState> = {};
+  for (const [capability, entry] of Object.entries(registry.entries)) {
+    const evidence = await latestEvidence(evidenceRoot, capability);
+    const state = entry.real_mission === "not_applicable" && !evidence ? "fixture_only" : classifyAcceptance(evidence, entry.freshness_days, now, currentCommit);
+    states[capability] = state;
+    counts[state] += 1;
+    if (state === "failed") failed.push(capability);
+    if (state === "unproven") unproven.push(capability);
+  }
+  return { counts, failed, unproven, states };
+}
+
+export async function renderAcceptanceReport(root: string, now = new Date(), options: { evidenceRoot?: string } = {}): Promise<string> {
+  const registry = await loadAcceptanceRegistry(root);
+  const currentCommit = await gitCommit(root);
+  const evidenceRoot = options.evidenceRoot ?? path.join(root, "acceptance", "evidence");
+  const reportDirectory = path.join(root, "docs", "acceptance");
+  const rows = ["<!-- Generated by `uh acceptance report`; do not edit by hand. -->", "# Acceptance evidence", "", "| Capability | Inventory ID | Title | State | Last checked | Runtime | Model | Cost (USD) | Evidence |", "|---|---|---|---|---|---|---|---:|---|"];
+  for (const [capability, entry] of Object.entries(registry.entries)) {
+    const evidence = await latestEvidence(evidenceRoot, capability);
+    const state = entry.real_mission === "not_applicable" && !evidence ? "fixture_only" : classifyAcceptance(evidence, entry.freshness_days, now, currentCommit);
+    const evidencePath = path.relative(reportDirectory, path.join(evidenceRoot, capability, "latest.json")).split(path.sep).join("/");
+    const evidenceCell = evidence ? `[latest](${evidencePath})` : "—";
+    rows.push(`| ${capability} | ${entry.capability ?? capability} | ${entry.title} | ${state} | ${evidence?.checked_at ?? "—"} | ${evidence?.runtime ?? entry.runtime} | ${evidence?.model ?? entry.model ?? "—"} | ${evidence?.cost_usd ?? "—"} | ${evidenceCell} |`);
+  }
+  return `${rows.join("\n")}\n`;
+}
+
+async function runProcess(command: string, args: string[], cwd: string, distRoot?: string, extraEnv?: Record<string, string>): Promise<{ code: number; stdout: string; stderr: string }> {
+  return await new Promise((resolve) => {
+    const child = spawn(command, args, { cwd, env: { ...process.env, ...(distRoot ? { UH_HARNESS_DIST: path.resolve(distRoot, "dist") } : {}), ...extraEnv }, stdio: ["ignore", "pipe", "pipe"] });
+    let stdout = "";
+    let stderr = "";
+    child.stdout.on("data", (chunk) => { stdout += String(chunk); });
+    child.stdout.on("error", () => undefined);
+    child.stderr.on("data", (chunk) => { stderr += String(chunk); });
+    child.stderr.on("error", () => undefined);
+    child.on("close", (code) => resolve({ code: code ?? 1, stdout, stderr }));
+    child.on("error", (error) => resolve({ code: 1, stdout, stderr: `${stderr}${error.message}` }));
+  });
+}
+async function runProcessAndCancel(command: string, args: string[], cwd: string, cancelCommand: string, cancelArgs: string[], delayMs: number, distRoot?: string, extraEnv?: Record<string, string>): Promise<{ code: number; stdout: string; stderr: string }> {
+  return await new Promise((resolve) => {
+    const child = spawn(command, args, { cwd, env: { ...process.env, ...(distRoot ? { UH_HARNESS_DIST: path.resolve(distRoot, "dist") } : {}), ...extraEnv }, stdio: ["ignore", "pipe", "pipe"] });
+    let stdout = "";
+    let stderr = "";
+    const timer = setTimeout(() => { void runProcess(cancelCommand, cancelArgs, cwd, distRoot); }, delayMs);
+    child.stdout.on("data", (chunk) => { stdout += String(chunk); });
+    child.stdout.on("error", () => undefined);
+    child.stderr.on("data", (chunk) => { stderr += String(chunk); });
+    child.stderr.on("error", () => undefined);
+    child.on("close", (code) => { clearTimeout(timer); resolve({ code: code ?? 1, stdout, stderr }); });
+    child.on("error", (error) => { clearTimeout(timer); resolve({ code: 1, stdout, stderr: `${stderr}${error.message}` }); });
+  });
+}
+
+async function listAcceptanceFiles(root: string): Promise<string[]> {
+  const files: string[] = [];
+  const pending = [root];
+  while (pending.length > 0) {
+    const directory = pending.pop();
+    if (!directory) continue;
+    let children;
+    try {
+      children = await readdir(directory, { withFileTypes: true });
+    } catch {
+      continue;
+    }
+    for (const child of children) {
+      const childPath = path.join(directory, child.name);
+      if (child.isDirectory()) pending.push(childPath);
+      else files.push(childPath);
+    }
+  }
+  return files;
+}
+
+export async function collectFacts(runRoot: string, missionId: string, expected?: AcceptanceExpected): Promise<{ observed: AcceptanceFacts; runIds: string[]; provider: string; model: string; cost: number | "unknown"; fact_sources: Record<string, string> }> {
+  const missionRoot = path.join(runRoot, ".harness", "missions", missionId);
+  const observed: AcceptanceFacts = {};
+  const factSources: Record<string, string> = {};
+  const sourceValues: Record<string, Record<string, unknown>> = { first: {}, last: {} };
+  const mergeFacts = (value: unknown, source: string): void => {
+    if (!value || typeof value !== "object" || Array.isArray(value)) return;
+    for (const [key, item] of Object.entries(value as Record<string, unknown>)) {
+      observed[key] = item;
+      factSources[key] = source;
+      if (source === "first" || source === "last") sourceValues[source][key] = item;
+    }
+  };
+  let provider = UNKNOWN;
+  let model = UNKNOWN;
+  let pathStyleValid = true;
+  let cost: number | "unknown" = "unknown";
+  const runIds: string[] = [];
+  try {
+    const result = parse(await readFile(path.join(missionRoot, "runtime-result.yaml"), "utf8")) as Record<string, unknown>;
+    Object.assign(observed, result);
+    mergeFacts(result, "initial");
+    provider = typeof result.provider === "string" ? result.provider : UNKNOWN;
+    model = typeof result.model === "string" ? result.model : UNKNOWN;
+    cost = typeof result.cost_usd === "number" ? result.cost_usd : "unknown";
+  } catch { /* team missions publish facts under runs */ }
+  try {
+    const entries = (await readdir(path.join(missionRoot, "runs"), { withFileTypes: true }))
+      .filter((entry) => entry.isDirectory())
+      .sort((left, right) => left.name.localeCompare(right.name));
+    for (let index = 0; index < entries.length; index += 1) {
+      const entry = entries[index];
+      const source = index === 0 ? "first" : index === entries.length - 1 ? "last" : `middle:${entry.name}`;
+      runIds.push(entry.name);
+      for (const file of ["runtime-result.yaml", "runtime-control.json", "runtime-recovery.json", "team-state.json"]) {
+        try {
+          const priorDenials = typeof observed.denials === "number" ? observed.denials : 0;
+          const value = file.endsWith("yaml") ? parse(await readFile(path.join(missionRoot, "runs", entry.name, file), "utf8")) : JSON.parse(await readFile(path.join(missionRoot, "runs", entry.name, file), "utf8"));
+          if (file === "runtime-result.yaml" || file === "team-state.json") {
+            pathStyleValid = pathStyleValid && hasForwardSlashPaths(value);
+          }
+          if (value && typeof value === "object") mergeFacts(value, source);
+          const record = value as Record<string, unknown>;
+          if (file === "runtime-recovery.json") {
+            observed.resumed = true;
+            factSources.resumed = source;
+          }
+          if (typeof record.provider === "string") provider = record.provider;
+          if (typeof record.model === "string") model = record.model;
+          if (typeof record.cost_usd === "number") cost = record.cost_usd;
+          if (typeof record.denials === "number" && record.denials >= priorDenials) {
+            observed.denials = record.denials;
+            factSources.denials = source;
+          }
+        } catch { /* optional artifact */ }
+      }
+      try {
+        const guardLog = await readFile(path.join(missionRoot, "runs", entry.name, "tool-guard.log"), "utf8");
+        // tool_guard_lines counts denials only: a guard log line is a denial when its parsed
+        // JSON has a class other than "allow". A line that does not parse as JSON (a truncated
+        // or corrupt write) counts as a denial only if it contains "deny".
+        let denials = 0;
+        let allows = 0;
+        for (const line of guardLog.split(/\r?\n/)) {
+          const trimmed = line.trim();
+          if (trimmed === "") continue;
+          try {
+            const parsed: unknown = JSON.parse(trimmed);
+            const guardClass = parsed !== null && typeof parsed === "object" ? (parsed as { class?: unknown }).class : undefined;
+            if (guardClass === "allow") allows += 1;
+            else denials += 1;
+          } catch {
+            if (trimmed.includes("\"deny\"")) denials += 1;
+          }
+        }
+        observed.tool_guard_lines = denials;
+        observed.tool_guard_allow_lines = allows;
+        factSources.tool_guard_lines = source;
+        factSources.tool_guard_allow_lines = source;
+        if (source === "first" || source === "last") {
+          sourceValues[source].tool_guard_lines = denials;
+          sourceValues[source].tool_guard_allow_lines = allows;
+        }
+      } catch { /* runs without guard hooks have no tool-guard.log */ }
+    }
+  } catch { /* no runs */ }
+  const pending = [path.join(missionRoot, "team", "artifacts")];
+  while (pending.length > 0) {
+    const directory = pending.pop();
+    if (!directory) continue;
+    let children;
+    try {
+      children = await readdir(directory, { withFileTypes: true });
+    } catch {
+      continue;
+    }
+    for (const child of children) {
+      const childPath = path.join(directory, child.name);
+      if (child.isDirectory()) {
+        pending.push(childPath);
+        continue;
+      }
+      if (!child.name.endsWith("runtime-result.yaml") && !child.name.endsWith("runtime-control.json")) continue;
+      try {
+        const value = child.name.endsWith(".yaml")
+          ? parse(await readFile(childPath, "utf8"))
+          : JSON.parse(await readFile(childPath, "utf8"));
+        if (!value || typeof value !== "object") continue;
+        const record = value as Record<string, unknown>;
+        if (typeof record.provider === "string" && provider === UNKNOWN) provider = record.provider;
+        if (typeof record.model === "string" && model === UNKNOWN) model = record.model;
+        if (typeof record.cost_usd === "number") cost = cost === "unknown" ? record.cost_usd : cost + record.cost_usd;
+      } catch {
+        // Worker artifacts are optional when admission fails before launch.
+      }
+    }
+  }
+  try {
+    const files = await listAcceptanceFiles(runRoot);
+    const outputRoot = path.join(runRoot, "out");
+    observed.files = files
+      .filter((file) => file.startsWith(`${outputRoot}${path.sep}`))
+      .map((file) => path.relative(runRoot, file).split(path.sep).join("/"));
+    let guardianReceipt = false;
+    for (const file of files) {
+      if (path.basename(file) !== "windows-job-result.json") continue;
+      try {
+        const receipt = JSON.parse(await readFile(file, "utf8")) as Record<string, unknown>;
+        guardianReceipt = guardianReceipt || receipt.settled === true;
+      } catch { /* optional receipt */ }
+    }
+    observed.guardian_receipt = guardianReceipt;
+  } catch {
+    observed.files = [];
+  }
+  for (const [field, selected] of Object.entries(expected?.fact_sources ?? {})) {
+    const value = sourceValues[selected]?.[field];
+    if (value !== undefined) {
+      observed[field] = value;
+      factSources[field] = selected;
+    }
+  }
+  observed.path_style = pathStyleValid ? "forward_slashes" : "backslashes";
+  observed.fact_sources = factSources;
+  return { observed, runIds, provider, model, cost, fact_sources: factSources };
+}
+
+async function gitCommit(root: string): Promise<string> {
+  try { return (await execFileAsync("git", ["rev-parse", "HEAD"], { cwd: root })).stdout.trim() || UNKNOWN; } catch { return UNKNOWN; }
+}
+
+/**
+ * The snapshot CLI imports from the source checkout's dependencies. A git
+ * worktree (team leader tree) has no node_modules of its own, so resolve the
+ * first ancestor that has one; without any, the campaign cannot run.
+ */
+async function resolveNodeModulesRoot(sourceRoot: string): Promise<string> {
+  let current = path.resolve(sourceRoot);
+  for (;;) {
+    const candidate = path.join(current, "node_modules");
+    try {
+      if ((await stat(candidate)).isDirectory()) return candidate;
+    } catch { /* keep walking up */ }
+    const parent = path.dirname(current);
+    if (parent === current) break;
+    current = parent;
+  }
+  console.error(`acceptance: no node_modules found walking up from ${path.resolve(sourceRoot)}; install dependencies in the harness checkout before running the acceptance campaign`);
+  process.exit(2);
+}
+
+async function preloadAcceptanceCampaign(sourceRoot: string, workspace: string): Promise<string> {
+  const nodeModules = await resolveNodeModulesRoot(sourceRoot);
+  await Promise.all([
+    import("../adapters/oh-my-pi.js"),
+    import("../adapters/command-code.js"),
+    import("../harness/team-run.js"),
+    import("../harness/verify.js"),
+    import("../schema/mission.js"),
+    import("../harness/runtime-recovery.js"),
+  ]);
+  const snapshot = path.join(path.resolve(workspace), ".acceptance-runtime");
+  await cp(path.join(sourceRoot, "dist"), snapshot, { recursive: true });
+  await cp(path.join(sourceRoot, "src"), path.join(snapshot, "src"), { recursive: true });
+  await cp(path.join(sourceRoot, "src"), path.join(path.resolve(workspace), "src"), { recursive: true });
+  const junction = path.join(snapshot, "node_modules");
+  let createJunction = true;
+  try {
+    const existing = await lstat(junction);
+    if (existing.isSymbolicLink()) {
+      try {
+        await stat(junction);
+        createJunction = false;
+      } catch {
+        await rm(junction, { recursive: true, force: true });
+      }
+    } else {
+      createJunction = false;
+    }
+  } catch { /* absent: create below */ }
+  if (createJunction) await symlink(nodeModules, junction, "junction");
+  return path.join(snapshot, "cli.js");
+}
+const CMD_SUFFIX = "-cmdc";
+
+function baseAcceptanceCapability(capability: string): string {
+  return capability.endsWith(CMD_SUFFIX) ? capability.slice(0, -CMD_SUFFIX.length) : capability;
+}
+
+function acceptanceMissionId(capability: string): string {
+  return capability === "R7-repeated-failure" ? "r8-repeated-failure-acceptance" : `${capability.toLowerCase()}-acceptance`;
+}
+
+/**
+ * Capabilities whose mechanism is hard-wired to acceptance support files, and
+ * the runtimes each mechanism actually supports. A run whose effective runtime
+ * is outside this list must fail the capability instead of launching a wrapper
+ * that cannot drive the runtime.
+ */
+const WRAPPER_MECHANISM_RUNTIMES: Record<string, readonly string[]> = {
+  G2: ["oh-my-pi"],
+  "G2-cmdc": ["command-code"],
+  "S3-unknown-cost": ["oh-my-pi"],
+  "S3-unknown-cost-cmdc": ["command-code"],
+  "R10-controller-loss": ["oh-my-pi", "command-code"],
+  "R10-controller-loss-cmdc": ["oh-my-pi", "command-code"],
+};
+
+export function wrapperMechanismUnavailable(capability: string, runtime: string): boolean {
+  const supported = WRAPPER_MECHANISM_RUNTIMES[capability];
+  return supported !== undefined && !supported.includes(runtime);
+}
+
+/**
+ * Team-shaped entries select worker runtimes only through the mission file, so
+ * a `--runtime` override must rewrite every adapter (workers and leader) in the
+ * copied mission; the requested model is injected into each worker's
+ * runtime_config_overrides.
+ */
+export async function applyTeamMissionOverrides(missionPath: string, overrides: { runtime?: string; model?: string }): Promise<void> {
+  if (!overrides.runtime && !overrides.model) return;
+  const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+  const team = mission.team as Record<string, unknown> | undefined;
+  if (!team || typeof team !== "object") return;
+  if (overrides.runtime) {
+    const leader = team.leader;
+    if (leader && typeof leader === "object") (leader as Record<string, unknown>).adapter = overrides.runtime;
+  }
+  const workers = Array.isArray(team.workers) ? team.workers : [];
+  for (const worker of workers) {
+    if (!worker || typeof worker !== "object") continue;
+    const record = worker as Record<string, unknown>;
+    if (overrides.runtime) record.adapter = overrides.runtime;
+    if (overrides.model) record.runtime_config_overrides = { ...(record.runtime_config_overrides as Record<string, unknown> | undefined), model: overrides.model };
+  }
+  await writeFile(missionPath, stringify(mission), "utf8");
+}
+
+async function recordWrapperUnavailableEvidence(sourceRoot: string, capability: string, entry: AcceptanceRegistryEntry, runtime: string, options: AcceptanceRunOptions): Promise<AcceptanceEvidenceRecord> {
+  const timestamp = new Date().toISOString().replace(/[-:.]/g, "").replace(/Z$/, "Z");
+  const workspace = path.resolve(options.workspace ?? sourceRoot);
+  const runRoot = path.join(workspace, capability, timestamp);
+  const missionId = acceptanceMissionId(capability);
+  const evidence: AcceptanceEvidenceRecord = {
+    schema_version: "uh.acceptance-evidence.v0",
+    capability,
+    outcome: "failed",
+    checked_at: new Date().toISOString(),
+    harness_commit: await gitCommit(sourceRoot),
+    runtime,
+    provider: UNKNOWN,
+    model: entry.model ?? options.model ?? UNKNOWN,
+    cost_usd: "unknown",
+    workspace: runRoot,
+    run_ids: [],
+    mission_id: missionId,
+    expected: entry.expected,
+    observed: { status: "failed", reason: "wrapper_unavailable" },
+    fact_sources: {},
+    mismatches: [{ field: "wrapper", expected: `${capability} mechanism for runtime ${runtime}`, observed: "wrapper_unavailable" }],
+    artifact_root: path.join(runRoot, ".harness", "missions", missionId),
+    cli: { exit_code: null, stderr_tail: "", stdout_tail: "" },
+  };
+  const checked = AcceptanceEvidenceRecordSchema.parse(evidence);
+  const evidenceDir = path.join(sourceRoot, "acceptance", "evidence", capability);
+  await mkdir(evidenceDir, { recursive: true });
+  await writeFile(path.join(evidenceDir, `${timestamp}.json`), JSON.stringify(checked, null, 2) + "\n", "utf8");
+  await writeFile(path.join(evidenceDir, "latest.json"), JSON.stringify(checked, null, 2) + "\n", "utf8");
+  console.log(`FAIL ${capability} — wrapper_unavailable: no ${capability} mechanism for runtime ${runtime}`);
+  return checked;
+}
+
+/**
+ * Extra env for the mission-run child. Entries declaring `support_shim` get
+ * the copied acceptance/support directory prepended to PATH for that run
+ * only; every other entry keeps the parent PATH untouched.
+ */
+export function acceptanceSpawnEnv(entry: Pick<AcceptanceRegistryEntry, "support_shim">, runRoot: string): Record<string, string> {
+  if (!entry.support_shim) return {};
+  const supportDir = path.join(runRoot, "acceptance", "support");
+  const pathKey = Object.keys(process.env).find((key) => key.toLowerCase() === "path") ?? "PATH";
+  return { [pathKey]: `${supportDir}${path.delimiter}${process.env[pathKey] ?? ""}` };
+}
+
+async function runOneAcceptance(sourceRoot: string, capability: string, entry: AcceptanceRegistryEntry, options: AcceptanceRunOptions): Promise<AcceptanceEvidence> {
+
+  if (!options.workspace) throw new Error("acceptance run requires --workspace <dir>");
+  const runtime = options.runtime ?? entry.runtime;
+  if (options.runtime && options.runtime !== entry.runtime) console.warn(`WARN ${capability}: runtime override ${options.runtime} differs from registry runtime ${entry.runtime}`);
+  const timestamp = new Date().toISOString().replace(/[-:.]/g, "").replace(/Z$/, "Z");
+  const deepSegments = baseAcceptanceCapability(capability) === "R5-deep-path"
+    ? Array.from({ length: 2 }, (_, index) => `deep-${index}-${"x".repeat(64)}`)
+    : [];
+  const runBase = baseAcceptanceCapability(capability) === "R5-deep-path" ? path.join(options.workspace, ...deepSegments) : options.workspace;
+  const runRoot = path.join(runBase, capability, timestamp);
+  await mkdir(runRoot, { recursive: true });
+  await runProcess("git", ["init", "--quiet"], runRoot);
+  if (process.platform === "win32") {
+    const longpaths = await runProcess("git", ["config", "core.longpaths", "true"], runRoot);
+    if (longpaths.code !== 0) throw new Error(`git config core.longpaths failed: ${longpaths.stderr}`);
+  }
+  await initializeHarness(runRoot, true);
+  try {
+    await cp(path.join(sourceRoot, "acceptance", "support"), path.join(runRoot, "acceptance", "support"), { recursive: true });
+  } catch {
+    // Optional support files are only needed by missions that declare them.
+  }
+  const adapterSource = runtime === "command-code"
+    ? path.join(runRoot, "acceptance", "support", "command-code.yaml")
+    : path.join(sourceRoot, ".harness", "adapters", `${runtime}.yaml`);
+  try {
+    await cp(adapterSource, path.join(runRoot, ".harness", "adapters", `${runtime}.yaml`));
+  } catch {
+    // The run will produce failed evidence when its adapter is unavailable.
+  }
+  const missionId = acceptanceMissionId(capability);
+  const missionDir = path.join(runRoot, ".harness", "missions", missionId);
+  await mkdir(missionDir, { recursive: true });
+  const sourceMission = path.resolve(sourceRoot, "acceptance", entry.mission);
+  await cp(sourceMission, path.join(missionDir, "mission.yaml"));
+  const model = entry.model ?? options.model;
+  if ((model || options.runtime) && entry.shape === "team") {
+    await applyTeamMissionOverrides(path.join(missionDir, "mission.yaml"), { runtime: options.runtime, model });
+  }
+  if (capability === "G2" && runtime === "oh-my-pi") {
+    const manifest = parse(await readFile(path.join(runRoot, "acceptance", "support", "oh-my-pi-denial.yaml"), "utf8")) as Record<string, unknown>;
+    const config = (manifest.config ?? {}) as Record<string, unknown>;
+    config.cli_command = path.join(runRoot, "acceptance", "support", "denial-wrapper.mjs");
+    manifest.config = config;
+    await writeFile(path.join(runRoot, ".harness", "adapters", "oh-my-pi.yaml"), stringify(manifest), "utf8");
+  }
+  if (capability === "S3-unknown-cost" && runtime === "oh-my-pi") {
+    const manifest = parse(await readFile(path.join(runRoot, "acceptance", "support", "oh-my-pi.yaml"), "utf8")) as Record<string, unknown>;
+    const config = (manifest.config ?? {}) as Record<string, unknown>;
+    config.cli_command = path.join(runRoot, "acceptance", "support", "costless-wrapper.mjs");
+    manifest.config = config;
+    await writeFile(path.join(runRoot, ".harness", "adapters", "oh-my-pi.yaml"), stringify(manifest), "utf8");
+  }
+  if (capability === "S3-unknown-cost-cmdc" && runtime === "command-code") {
+    const manifest = parse(await readFile(path.join(runRoot, "acceptance", "support", "command-code.yaml"), "utf8")) as Record<string, unknown>;
+    const config = (manifest.config ?? {}) as Record<string, unknown>;
+    config.cli_command = path.join(runRoot, "acceptance", "support", "costless-wrapper-cmdc.mjs");
+    manifest.config = config;
+    await writeFile(path.join(runRoot, ".harness", "adapters", "command-code.yaml"), stringify(manifest), "utf8");
+  }
+  const cli = options.cliPath ?? path.resolve(sourceRoot, "dist", "cli.js");
+  const args = [cli, "mission", entry.shape === "team" ? "run-team" : "run", entry.shape === "team" ? missionId : path.join(missionDir, "mission.yaml"), "--root", runRoot];
+  // The campaign workspace has no bound sandbox by design, so the single-shape
+  // run must opt into root execution explicitly (pushed before the trailing
+  // --runtime-config-overrides pair, which the resume path below slices off).
+  if (entry.shape !== "team") args.push("--runtime", runtime, "--force", "--no-sandbox");
+  if (model && entry.shape !== "team") args.push("--runtime-config-overrides", JSON.stringify({ model }));
+  await configureAcceptanceSeed(runRoot);
+  const cancelRunId = "20260101T000000Z-abcdef";
+  const controllerLossRunId = "20260101T000001Z-abcdef";
+  const launchArgs = baseAcceptanceCapability(capability) === "R5" ? [...args, "--run-id", cancelRunId] : args;
+  const spawnEnv = acceptanceSpawnEnv(entry, runRoot);
+  let result: { code: number; stdout: string; stderr: string };
+  if (baseAcceptanceCapability(capability) === "R5") {
+    result = await runProcessAndCancel(process.execPath, launchArgs, sourceRoot, process.execPath, [cli, "mission", "cancel", "--mission", missionId, "--run-id", cancelRunId, "--root", runRoot], 750, sourceRoot);
+  } else if (baseAcceptanceCapability(capability) === "R10-controller-loss") {
+    const controlPath = path.join(runRoot, ".harness", "missions", missionId, "runs", controllerLossRunId, "runtime-control.json");
+    const wrapper = path.join(runRoot, "acceptance", "support", "controller-loss-wrapper.mjs");
+    result = await runProcess(process.execPath, [wrapper, controlPath, process.execPath, ...args, "--run-id", controllerLossRunId], sourceRoot, sourceRoot);
+    const resumeArgs = model && entry.shape !== "team"
+      ? [...args.slice(0, -2), "--runtime-config-overrides", JSON.stringify({ model, resume_from_run: controllerLossRunId, recovery_notes: "Recover the controller-lost attempt and create out/controller-recovered.txt." })]
+      : [...args, "--runtime-config-overrides", JSON.stringify({ resume_from_run: controllerLossRunId, recovery_notes: "Recover the controller-lost attempt and create out/controller-recovered.txt." })];
+    result = await runProcess(process.execPath, resumeArgs, sourceRoot, sourceRoot);
+  } else {
+    result = await runProcess(process.execPath, launchArgs, sourceRoot, sourceRoot, spawnEnv);
+  }
+  const facts = await collectFacts(runRoot, missionId, entry.expected);
+  if (entry.support_shim) facts.observed.shim_on_path = true;
+  if (result.code !== 0 && facts.observed.status === "passed") facts.observed.status = "failed";
+  const mismatches = compareAcceptanceFacts(entry.expected, facts.observed);
+  const evidence: AcceptanceEvidenceRecord = {
+    schema_version: "uh.acceptance-evidence.v0",
+    capability,
+    outcome: mismatches.length === 0 ? "passed" : "failed",
+    checked_at: new Date().toISOString(),
+    harness_commit: await gitCommit(sourceRoot),
+    runtime,
+    provider: facts.provider,
+    model: facts.model,
+    cost_usd: facts.cost,
+    workspace: runRoot,
+    run_ids: facts.runIds,
+    mission_id: missionId,
+    expected: entry.expected,
+    observed: facts.observed,
+    fact_sources: facts.fact_sources,
+    mismatches,
+    artifact_root: path.join(runRoot, ".harness", "missions", missionId),
+    cli: { exit_code: result.code, stderr_tail: result.stderr.slice(-2048), stdout_tail: result.stdout.slice(-2048) },
+  };
+  const checked = AcceptanceEvidenceRecordSchema.parse(evidence);
+  const evidenceDir = path.join(sourceRoot, "acceptance", "evidence", capability);
+  await mkdir(evidenceDir, { recursive: true });
+  await writeFile(path.join(evidenceDir, `${timestamp}.json`), JSON.stringify(checked, null, 2) + "\n", "utf8");
+  await writeFile(path.join(evidenceDir, "latest.json"), JSON.stringify(checked, null, 2) + "\n", "utf8");
+  const cost = checked.cost_usd === "unknown" ? "unknown" : checked.cost_usd.toFixed(6);
+  const stderrFirstLine = result.stderr.split(/\r?\n/).find((line) => line.trim() !== "")?.trim() ?? "";
+  const stderrCause = facts.observed.status === undefined && stderrFirstLine !== "" ? ` — ${stderrFirstLine}` : "";
+  console.log(`${checked.outcome === "passed" ? "PASS" : "FAIL"} ${capability} cost_usd=${cost}${mismatches.length ? ` — ${mismatches.map((m) => `${m.field}: expected ${JSON.stringify(m.expected)} observed ${JSON.stringify(m.observed)}`).join("; ")}` : ""}${stderrCause}`);
+  return checked;
+}
+
+export type AcceptanceRunOptions = { workspace?: string; runtime?: string; model?: string; keep?: boolean; capabilities?: string[]; cliPath?: string };
+
+export async function runAcceptance(sourceRoot: string, options: AcceptanceRunOptions = {}): Promise<AcceptanceEvidenceRecord[]> {
+  if (!options.workspace) throw new Error("acceptance run requires --workspace <dir>");
+  const registry = await loadAcceptanceRegistry(sourceRoot);
+  const workspace = path.resolve(options.workspace);
+  const capabilities = options.capabilities?.length ? options.capabilities : Object.keys(registry.entries);
+  const results: AcceptanceEvidence[] = [];
+  const runnable: { capability: string; entry: AcceptanceRegistryEntry }[] = [];
+  for (const capability of capabilities) {
+    const entry = registry.entries[capability];
+    if (!entry) throw new Error(`Unknown acceptance capability: ${capability}`);
+    if (entry.real_mission === "not_applicable") {
+      console.log(`FIXTURE ${capability} — ${entry.reason}`);
+      continue;
+    }
+    const runtime = options.runtime ?? entry.runtime;
+    if (wrapperMechanismUnavailable(capability, runtime)) {
+      results.push(await recordWrapperUnavailableEvidence(sourceRoot, capability, entry, runtime, options));
+      continue;
+    }
+    runnable.push({ capability, entry });
+  }
+  if (runnable.length === 0) return results;
+  const cliPath = options.cliPath ?? await preloadAcceptanceCampaign(sourceRoot, workspace);
+  for (const { capability, entry } of runnable) {
+    results.push(await runOneAcceptance(sourceRoot, capability, entry, { ...options, workspace, cliPath }));
+  }
+  return results;
+}
+async function configureAcceptanceSeed(runRoot: string): Promise<void> {
+  await writeFile(path.join(runRoot, "README.md"), "# Acceptance workspace\n", "utf8");
+  const config = await runProcess("git", ["config", "core.autocrlf", "false"], runRoot);
+  if (config.code !== 0) throw new Error(`git config core.autocrlf failed: ${config.stderr}`);
+  for (const [key, value] of [["user.name", "Ultimate Harness Acceptance"], ["user.email", "acceptance@localhost"]]) {
+    const result = await runProcess("git", ["config", key, value], runRoot);
+    if (result.code !== 0) throw new Error(`git config ${key} failed: ${result.stderr}`);
+  }
+  const added = await runProcess("git", ["add", "-A"], runRoot);
+  if (added.code !== 0) throw new Error(`git add failed: ${added.stderr}`);
+  const committed = await runProcess("git", ["commit", "--quiet", "-m", "Seed acceptance workspace"], runRoot);
+  if (committed.code !== 0) throw new Error(`git commit failed: ${committed.stderr}`);
+}
+
+export async function writeAcceptanceReport(root: string): Promise<string> {
+  const output = path.join(root, "docs", "acceptance", "README.md");
+  await mkdir(path.dirname(output), { recursive: true });
+  const report = await renderAcceptanceReport(root);
+  await writeFile(output, report, "utf8");
+  return output;
+}
diff --git a/src/harness/adapter-add.ts b/src/harness/adapter-add.ts
index 03fd8c3..902c508 100644
--- a/src/harness/adapter-add.ts
+++ b/src/harness/adapter-add.ts
@@ -17,8 +17,49 @@ import { fileExists } from "./mission.js";
  * - `openrouter` — active   (HTTP, OpenAI-compat pay-per-token)
  * - `anthropic`  — experimental (HTTP, native Anthropic Messages API; UH-136)
  * - `pi`         — active
+ * - `claude-code` — active (native Claude Code CLI, guarded stream-json)
  */
 const ADAPTER_TEMPLATES: Record<string, string> = {
+  "command-code": `schema_version: uh.adapter.v0
+id: command-code
+name: Command Code
+description: Native Command Code execution with persistent sessions and UH supervision.
+runtime: command-code
+capabilities:
+  - cli-execution
+  - json-output
+  - diff-output
+  - session-resume
+status: experimental
+config:
+  cli_command: cmdc
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    model: ""
+`,
+  "claude-code": `schema_version: uh.adapter.v0
+id: claude-code
+name: Claude Code
+description: Native Claude Code execution with exact model routing, stream supervision, guard hooks, and session recovery.
+runtime: claude-code
+capabilities:
+  - cli-execution
+  - non-interactive
+  - stream-json
+  - structured-events
+  - diff-output
+  - session-resume
+status: active
+config:
+  cli_command: claude
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    model: claude-fable-5-1[1m]
+    role: worker
+    permission_mode: default
+`,
   hermes: `schema_version: uh.adapter.v0
 id: hermes
 name: Hermes Agent
@@ -81,7 +122,7 @@ id: oh-my-pi
 name: oh-my-pi
 description: >-
   Runtime adapter for oh-my-pi (omp), a multi-provider CLI coding agent.
-  Executes missions via \`omp --print --mode json\` with sessions ephemeral and
+  Executes missions via \`omp --print --mode json\` with persistent sessions and
   extensions/skills disabled by default for deterministic runs. Provider /
   account auth flows through OMP's own credential store and env vars.
   See docs/runbooks/anthropic-via-omp.md for the Anthropic-via-OMP routing
@@ -226,6 +267,33 @@ config:
     thinking: ""
     allow_extensions: false
     allow_skills: false
+`,
+  acp: `schema_version: uh.adapter.v0
+id: acp
+name: Agent-Client Protocol (ACP)
+description: >-
+  Communicates with any ACP-compliant agent server (OpenHands, Gemini CLI, etc.)
+  over JSON-RPC on stdio.
+runtime: acp
+capabilities:
+  - cli-execution
+  - non-interactive
+  - one-shot
+  - json-output
+  - diff-output
+status: experimental
+config:
+  cli_command: acp-agent
+  default_toolsets: []
+  default_provider: ""
+  default_model: ""
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    server_command: acp-agent
+    server_args: []
+    protocol_version: 1
+    timeout_ms: 600000
 `,
 };
 
diff --git a/src/harness/artifact-paths.ts b/src/harness/artifact-paths.ts
new file mode 100644
index 0000000..929b0e6
--- /dev/null
+++ b/src/harness/artifact-paths.ts
@@ -0,0 +1,8 @@
+import path from "node:path";
+
+/** Return a relative persisted artifact path with platform-independent separators. */
+export function relativeArtifactPath(from: string, to: string): string {
+  const pathApi = path.win32.isAbsolute(from) || path.win32.isAbsolute(to) ? path.win32 : path;
+  // A target on another volume has no relative form; it is kept absolute, still with forward slashes.
+  return pathApi.relative(from, to).split(pathApi.sep).join("/");
+}
diff --git a/src/harness/artifact-transaction.ts b/src/harness/artifact-transaction.ts
new file mode 100644
index 0000000..f63f604
--- /dev/null
+++ b/src/harness/artifact-transaction.ts
@@ -0,0 +1,111 @@
+import { access, open, realpath, rename, rm } from "node:fs/promises";
+import { createHash, randomUUID } from "node:crypto";
+import { createServer } from "node:net";
+import path from "node:path";
+import { setTimeout as delay } from "node:timers/promises";
+
+const RETRYABLE_RENAME_CODES: Record<string, true> = { EPERM: true, EACCES: true, EBUSY: true };
+const DEFAULT_RENAME_ATTEMPTS = 10;
+const DEFAULT_RENAME_INITIAL_DELAY_MS = 10;
+const DEFAULT_RENAME_MAX_DELAY_MS = 200;
+
+export interface RenameRetryOptions {
+  attempts?: number;
+  initialDelayMs?: number;
+  maxDelayMs?: number;
+  delay?: (milliseconds: number) => Promise<void>;
+  rename?: typeof rename;
+}
+
+export async function renameWithRetry(from: string, to: string, options: RenameRetryOptions = {}): Promise<void> {
+  const attempts = options.attempts ?? DEFAULT_RENAME_ATTEMPTS;
+  const initialDelayMs = options.initialDelayMs ?? DEFAULT_RENAME_INITIAL_DELAY_MS;
+  const maxDelayMs = options.maxDelayMs ?? DEFAULT_RENAME_MAX_DELAY_MS;
+  const wait = options.delay ?? delay;
+  const replace = options.rename ?? rename;
+  let retryDelay = initialDelayMs;
+  for (let attempt = 1; ; attempt += 1) {
+    try {
+      await replace(from, to);
+      return;
+    } catch (error) {
+      const code = (error as NodeJS.ErrnoException).code;
+      if (!RETRYABLE_RENAME_CODES[code ?? ""] || attempt >= attempts) throw error;
+      await wait(retryDelay);
+      retryDelay = Math.min(retryDelay * 2, maxDelayMs);
+    }
+  }
+}
+
+/** Atomic replacement with durable contents and unique staging files. */
+export async function writeAtomicArtifact(file: string, content: string, options?: RenameRetryOptions): Promise<void> {
+  const temporary = `${file}.${randomUUID()}.tmp`;
+  const handle = await open(temporary, "wx");
+  try {
+    try {
+      await handle.writeFile(content, "utf8");
+      await handle.sync();
+    } finally { await handle.close(); }
+    await renameWithRetry(temporary, file, options);
+  } finally { await rm(temporary, { force: true }); }
+}
+
+/** Serialize the read/modify/write boundary across CLI processes, not merely Promise callers.
+ * Windows uses a kernel-owned named pipe, released automatically when its owner dies.
+ * Other platforms retain the bounded filesystem lock; ambiguous legacy locks fail closed.
+ */
+export async function withArtifactTransaction<T>(file: string, operation: () => Promise<T>): Promise<T> {
+  if (process.platform === "win32") return withWindowsTransaction(file, operation);
+  const lockPath = `${file}.lock`;
+  const deadline = Date.now() + 10_000;
+  let handle;
+  while (!handle) {
+    try { handle = await open(lockPath, "wx"); }
+    catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "EEXIST") throw error;
+      if (Date.now() >= deadline) throw new Error(`Artifact transaction remains locked: ${lockPath}`);
+      await delay(20);
+    }
+  }
+  try {
+    await handle.writeFile(JSON.stringify({ pid: process.pid, acquired_at: new Date().toISOString() }));
+    return await operation();
+  } finally {
+    await handle.close();
+    await rm(lockPath);
+  }
+}
+
+async function withWindowsTransaction<T>(file: string, operation: () => Promise<T>): Promise<T> {
+  const canonical = path.join(await realpath(path.dirname(path.resolve(file))), path.basename(file)).toLowerCase();
+  if (canonical.startsWith("\\\\")) throw new Error("Windows artifact transactions require local storage, not a network share");
+  const pipe = `\\\\.\\pipe\\uh-artifact-${createHash("sha256").update(canonical).digest("hex")}`;
+  const deadline = Date.now() + 10_000;
+  for (;;) {
+    const server = createServer(socket => socket.destroy());
+    server.maxConnections = 1;
+    try {
+      await new Promise<void>((resolve, reject) => {
+        server.once("error", reject);
+        server.listen(pipe, () => { server.off("error", reject); resolve(); });
+      });
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "EADDRINUSE") throw error;
+      if (Date.now() >= deadline) throw new Error(`Artifact transaction remains locked: ${file}`);
+      await delay(20);
+      continue;
+    }
+    try {
+      // Never discard an older controller's ownership evidence or assume its PID is dead.
+      try {
+        await access(`${file}.lock`);
+      } catch (error) {
+        if ((error as NodeJS.ErrnoException).code === "ENOENT") return await operation();
+        throw error;
+      }
+      throw new Error(`Legacy artifact lock requires owner reconciliation: ${file}.lock`);
+    } finally {
+      await new Promise<void>((resolve, reject) => server.close(error => error ? reject(error) : resolve()));
+    }
+  }
+}
diff --git a/src/harness/auto-route.ts b/src/harness/auto-route.ts
index e33edce..eab5f02 100644
--- a/src/harness/auto-route.ts
+++ b/src/harness/auto-route.ts
@@ -1,11 +1,15 @@
+import { createHash } from "node:crypto";
 import { CAPABILITIES, type AdapterId } from "../adapters/capabilities/index.js";
 import type { AdapterCapabilities, CostClass } from "../schema/adapter-capabilities.js";
+import type { DecisionAuthorizer, DecisionProvider, DecisionProviderStatus, DecisionReceipt, DecisionStatus } from "../schema/decisions.js";
 import type { MissionDocument } from "../schema/mission.js";
 import { compareCostClass } from "./cost-table.js";
 import {
   evaluateAdapterEligibility,
   resolveRuntimeRequirements,
 } from "./runtime-requirements.js";
+import { recordRouteDecision } from "./decision-receipts.js";
+import { evaluateSystemOne, type Question } from "./typesafe.js";
 
 /**
  * UH-101 — deterministic adapter auto-routing.
@@ -22,7 +26,7 @@ export interface AutoRouteCandidate {
   eligible: boolean;
   exclusionReasons: string[];
   cost_class: CostClass;
-  max_context_tokens: number;
+  max_context_tokens: number | null;
 }
 
 export interface AutoRouteDecision {
@@ -38,7 +42,7 @@ function rankCandidate(a: AutoRouteCandidate, b: AutoRouteCandidate): number {
   const byCost = compareCostClass(a.cost_class, b.cost_class);
   if (byCost !== 0) return byCost;
   if (a.max_context_tokens !== b.max_context_tokens) {
-    return b.max_context_tokens - a.max_context_tokens;
+    return (b.max_context_tokens ?? 0) - (a.max_context_tokens ?? 0);
   }
   return a.adapter.localeCompare(b.adapter);
 }
@@ -129,3 +133,322 @@ export function formatAutoRouteExplain(decision: AutoRouteDecision): string {
   );
   return lines.join("\n");
 }
+
+/**
+ * Level 1 semantic routing. Complexity levels the `score` question may return,
+ * ordered trivial → complex.
+ */
+export const COMPLEXITY_LEVELS = ["trivial", "simple", "moderate", "complex"] as const;
+export type ComplexityLevel = (typeof COMPLEXITY_LEVELS)[number];
+
+export interface SemanticRouteOptions {
+  mission: MissionDocument;
+  available: AdapterId[];
+  caps?: Record<AdapterId, AdapterCapabilities>;
+  /**
+   * `--force`: waive `runtime_requirements` in deterministic eligibility.
+   * `decision_policy.allowed_runtimes` and the fleet prefilter are policy
+   * allowlists and are never waived.
+   */
+  force?: boolean;
+  /** `--auto` requested semantic evaluation even when `decision_policy.enabled` is false. */
+  auto?: boolean;
+  /** Adapters the project fleet authorizes for this route, when known. */
+  fleetAdapters?: readonly string[];
+  apiKey?: string;
+  model?: string;
+  timeoutMs?: number;
+  fetch?: typeof globalThis.fetch;
+  delay?: (ms: number) => Promise<void>;
+  /** When set, a `uh.decision-receipt.v0` receipt is persisted under this mission directory. */
+  missionDir?: string;
+  missionId?: string;
+  runId?: string;
+}
+
+export interface SemanticRouteDecision {
+  /** Chosen adapter, or null when nothing is eligible / a required provider blocked launch. */
+  adapter: AdapterId | null;
+  /** Chosen model, or null to defer to the adapter's configured model. */
+  model: string | null;
+  reason: string;
+  status: DecisionStatus;
+  provider_status: DecisionProviderStatus;
+  authorizer: DecisionAuthorizer;
+  applied: boolean;
+  confidence?: number;
+  complexity?: ComplexityLevel;
+  /** The Level 0 deterministic decision, before any semantic recommendation. */
+  deterministic: AutoRouteDecision;
+  /** Candidates after `allowed_runtimes` and fleet filtering, best-first. */
+  candidates: AutoRouteCandidate[];
+  eligible: AdapterId[];
+  recommendation?: { runtime: AdapterId; model?: string };
+  receipt?: DecisionReceipt;
+}
+
+function digest(value: unknown): string {
+  return createHash("sha256").update(JSON.stringify(value)).digest("hex");
+}
+
+/**
+ * Combine Level 0 deterministic eligibility (runtime_requirements, capabilities,
+ * `decision_policy.allowed_runtimes`, and the project-fleet prefilter) with a
+ * bounded Level 1 TypeSafe System One (JEV) recommendation.
+ *
+ * JEV may only select among the strictly eligible adapters and the configured
+ * model candidates. Its answer is applied (`authorizer: "jev"`) only when the
+ * chosen adapter is eligible, the model is within `allowed_models` (when set),
+ * and confidence reaches `min_confidence` (default 0.70). Otherwise the
+ * deterministic incumbent and `fallback_model` are used. A missing credential,
+ * transport failure, malformed answer, or low confidence never throws: an
+ * outcome is returned and, when a `missionDir` is supplied, a
+ * `uh.decision-receipt.v0` is recorded best-effort.
+ */
+export async function chooseSemanticRoute(options: SemanticRouteOptions): Promise<SemanticRouteDecision> {
+  const mission = options.mission;
+  const caps = options.caps ?? CAPABILITIES;
+  const policy = mission.decision_policy;
+  const deterministic = chooseAdapter(mission, options.available, caps, {
+    ignoreRequirements: options.force === true,
+  });
+
+  const allowedRuntimes = policy?.allowed_runtimes ?? [];
+  const fleet = options.fleetAdapters ? new Set<string>(options.fleetAdapters) : undefined;
+
+  const candidates: AutoRouteCandidate[] = deterministic.candidates.map((candidate) => {
+    const exclusionReasons = [...candidate.exclusionReasons];
+    let eligible = candidate.eligible;
+    if (allowedRuntimes.length > 0 && !allowedRuntimes.includes(candidate.adapter)) {
+      exclusionReasons.push("not in decision_policy.allowed_runtimes");
+      eligible = false;
+    }
+    if (fleet && !fleet.has(candidate.adapter)) {
+      exclusionReasons.push("not authorized by the project fleet");
+      eligible = false;
+    }
+    return { ...candidate, eligible, exclusionReasons };
+  });
+  const eligible = candidates.filter((candidate) => candidate.eligible).map((candidate) => candidate.adapter);
+  const incumbent = eligible[0] ?? null;
+
+  if (incumbent === null) {
+    const reason = candidates.length === 0
+      ? deterministic.reason
+      : `no adapter satisfies the mission decision policy: ${candidates.map((c) => `${c.adapter} (${c.exclusionReasons.join("; ")})`).join(", ")}`;
+    return {
+      adapter: null, model: null, reason, status: "denied", provider_status: "not-requested",
+      authorizer: "none", applied: false, deterministic, candidates, eligible,
+    };
+  }
+
+  if (options.auto !== true && policy?.enabled !== true) {
+    return {
+      adapter: incumbent, model: null, status: "applied", provider_status: "not-requested",
+      authorizer: "deterministic", applied: true, deterministic, candidates, eligible,
+      reason: `deterministic route: ${incumbent} (${candidates.find((c) => c.adapter === incumbent)?.cost_class ?? "unknown"})`,
+    };
+  }
+
+  const minConfidence = policy?.min_confidence ?? 0.7;
+  const fallbackModel = policy?.fallback_model ?? null;
+  const requireProvider = policy?.require_provider_for_route === true;
+  const allowedModels = policy?.allowed_models ?? [];
+  const modelCandidates = [...new Set(
+    [...allowedModels, policy?.escalation_model, policy?.fallback_model]
+      .filter((value): value is string => typeof value === "string" && value.length > 0),
+  )];
+
+  const questions: Record<string, Question> = {
+    complexity: {
+      type: "score",
+      instructions: "Rate the overall complexity of this mission's implementation work.",
+      criteria: [...COMPLEXITY_LEVELS],
+    },
+  };
+
+  if (eligible.length >= 2) {
+    const adapterDescriptions: Record<string, string> = {};
+    for (const id of eligible) {
+      const candidate = candidates.find((c) => c.adapter === id)!;
+      adapterDescriptions[id] = `cost_class=${candidate.cost_class}, max_context_tokens=${candidate.max_context_tokens ?? "unknown"}`;
+    }
+    questions.recommended_adapter = {
+      type: "choice",
+      instructions: "Select the best eligible runtime adapter for this mission. Answer with exactly one of the supplied options.",
+      criteria: adapterDescriptions,
+    };
+  }
+
+  if (modelCandidates.length >= 2) {
+    questions.recommended_model = {
+      type: "choice",
+      instructions: "Select the best model for this route. Answer with exactly one of the supplied options.",
+      criteria: Object.fromEntries(modelCandidates.map((model) => [model, `Candidate model: ${model}`])),
+    };
+  }
+
+  const state = {
+    task: {
+      id: mission.id,
+      title: mission.name,
+      objective: mission.description || mission.title,
+      workflow: mission.workflow_profile,
+    },
+    capabilities: mission.capabilities ?? [],
+    runtime_requirements: resolveRuntimeRequirements(mission),
+    allowed_runtimes: allowedRuntimes,
+    allowed_models: allowedModels,
+    candidates: eligible.map((id) => {
+      const candidate = candidates.find((c) => c.adapter === id)!;
+      return { adapter: id, cost_class: candidate.cost_class, max_context_tokens: candidate.max_context_tokens };
+    }),
+  };
+  const input_sha256 = digest({ state, questions });
+
+  const response = await evaluateSystemOne({
+    state,
+    questions,
+    model: options.model,
+    apiKey: options.apiKey,
+    timeoutMs: options.timeoutMs,
+    fetch: options.fetch,
+    delay: options.delay,
+  });
+
+  let status: DecisionStatus;
+  let providerStatus: DecisionProviderStatus;
+  let authorizer: DecisionAuthorizer;
+  let applied = false;
+  let adapter: AdapterId | null = incumbent;
+  let model: string | null = null;
+  let confidence: number | undefined;
+  let complexity: ComplexityLevel | undefined;
+  let recommendation: { runtime: AdapterId; model?: string } | undefined;
+  let provider: DecisionProvider | undefined;
+  let reason: string;
+  let deterministicFallback = false;
+
+  if (response.kind === "ok") {
+    const adapterAnswer = response.answers.recommended_adapter;
+    const recommendedAdapter = (adapterAnswer?.choice ?? (eligible.length === 1 ? eligible[0] : incumbent)) as AdapterId;
+    const adapterConfidence = adapterAnswer ? (adapterAnswer.probabilities?.[recommendedAdapter] ?? 0) : 1;
+
+    const modelAnswer = response.answers.recommended_model;
+    const recommendedModel = modelAnswer?.choice ?? (modelCandidates.length === 1 ? modelCandidates[0] : undefined);
+    const modelConfidence = modelAnswer ? (modelAnswer.probabilities?.[recommendedModel ?? ""] ?? 0) : 1;
+
+    confidence = Math.min(adapterConfidence, modelConfidence);
+
+    const score = response.answers.complexity?.score;
+    complexity = typeof score === "number" ? COMPLEXITY_LEVELS[Math.min(Math.round(score), COMPLEXITY_LEVELS.length - 1)] : undefined;
+    provider = {
+      name: "typesafe",
+      model: response.model,
+      latency_ms: response.latency_ms,
+      ...(response.usage ? { usage: response.usage } : {}),
+    };
+    providerStatus = confidence > 0 ? "available" : "uncertain";
+    recommendation = { runtime: recommendedAdapter, ...(recommendedModel ? { model: recommendedModel } : {}) };
+    const modelAllowed = recommendedModel === undefined
+      || allowedModels.length === 0
+      || allowedModels.includes(recommendedModel);
+
+    if (!eligible.includes(recommendedAdapter)) {
+      status = "denied"; authorizer = "none"; deterministicFallback = true; model = fallbackModel;
+      reason = `Provider recommended adapter ${recommendedAdapter}, which is not deterministically eligible; no route applied.`;
+    } else if (!modelAllowed) {
+      status = "denied"; authorizer = "deterministic"; deterministicFallback = true; model = fallbackModel;
+      reason = `Provider recommended model ${recommendedModel}, which is outside decision_policy.allowed_models; using the deterministic route and fallback model.`;
+    } else if (confidence < minConfidence) {
+      status = "uncertain"; authorizer = "deterministic"; deterministicFallback = true; model = fallbackModel;
+      reason = `Provider confidence ${confidence.toFixed(2)} is below min_confidence ${minConfidence}; using the deterministic route and fallback model.`;
+    } else {
+      status = "applied"; authorizer = "jev"; applied = true;
+      adapter = recommendedAdapter;
+      model = recommendedModel ?? null;
+      reason = `Provider selected ${recommendedAdapter}${recommendedModel ? ` on ${recommendedModel}` : ""} with confidence ${confidence.toFixed(2)} within deterministic eligibility.`;
+    }
+  } else if (response.kind === "disabled") {
+    status = "unavailable"; providerStatus = "disabled"; authorizer = "deterministic";
+    deterministicFallback = true; model = fallbackModel;
+    reason = "Semantic routing disabled: no provider credential is configured; using the deterministic route and fallback model.";
+  } else if (response.kind === "malformed") {
+    status = "malformed"; providerStatus = "malformed"; authorizer = "deterministic";
+    deterministicFallback = true; model = fallbackModel;
+    reason = "Provider response failed the typed routing contract; using the deterministic route and fallback model.";
+  } else {
+    status = "unavailable"; providerStatus = "unavailable"; authorizer = "deterministic";
+    deterministicFallback = true; model = fallbackModel;
+    reason = `Provider request unavailable (${response.reason}${response.status === undefined ? "" : ` ${response.status}`}); using the deterministic route and fallback model.`;
+  }
+
+  if (requireProvider && !applied) {
+    adapter = null;
+    model = null;
+    authorizer = "none";
+    reason = `${reason} require_provider_for_route is set, so launch is blocked until the provider yields an applicable recommendation.`;
+  }
+
+  const decision: SemanticRouteDecision = {
+    adapter,
+    model,
+    reason,
+    status,
+    provider_status: providerStatus,
+    authorizer,
+    applied,
+    deterministic,
+    candidates,
+    eligible,
+    ...(confidence === undefined ? {} : { confidence }),
+    ...(complexity === undefined ? {} : { complexity }),
+    ...(recommendation ? { recommendation } : {}),
+  };
+
+  if (!options.missionDir) return decision;
+  try {
+    const receipt = await recordRouteDecision(options.missionDir, {
+      missionId: options.missionId ?? mission.id,
+      runId: options.runId,
+      status,
+      provider_status: providerStatus,
+      authorizer,
+      applied,
+      deterministic_fallback: deterministicFallback,
+      human_required: false,
+      confidence,
+      recommendation: recommendation
+        ? { kind: "runtime-selection", runtime: recommendation.runtime, ...(recommendation.model ? { model: recommendation.model } : {}) }
+        : undefined,
+      provider,
+      input_sha256,
+      response_sha256: response.kind === "ok" ? digest(response.answers) : undefined,
+      reason,
+      state_transition: {
+        from: incumbent ?? "unrouted",
+        to: adapter ?? "blocked",
+        unlocked: [],
+      },
+    });
+    return { ...decision, receipt };
+  } catch {
+    // Receipt persistence is best-effort: a routing decision must never fail
+    // because a receipt could not be written.
+    return decision;
+  }
+}
+
+/** One-line summary of a semantic route for CLI output. */
+export function formatSemanticRouteSummary(decision: SemanticRouteDecision): string {
+  const confidence = decision.confidence === undefined ? "" : ` confidence=${decision.confidence.toFixed(2)}`;
+  const complexity = decision.complexity === undefined ? "" : ` complexity=${decision.complexity}`;
+  const lines = [
+    `Semantic route: adapter=${decision.adapter ?? "none"} model=${decision.model ?? "runtime default"} status=${decision.status} authorizer=${decision.authorizer}${confidence}${complexity}`,
+    `  reason: ${decision.reason}`,
+  ];
+  if (decision.receipt) {
+    lines.push(`  receipt: ${decision.receipt.decision_id} (status=${decision.receipt.status}, provider=${decision.receipt.provider_status})`);
+  }
+  return lines.join("\n");
+}
diff --git a/src/harness/cost-table.ts b/src/harness/cost-table.ts
index 1b84271..55c0f1a 100644
--- a/src/harness/cost-table.ts
+++ b/src/harness/cost-table.ts
@@ -1,4 +1,9 @@
+import { access, readFile } from "node:fs/promises";
+import path from "node:path";
+import { parse } from "yaml";
 import { COST_CLASSES, type CostClass } from "../schema/adapter-capabilities.js";
+import { OperatorPriceTableSchema, type OperatorPriceEntry } from "../schema/prices.js";
+import { isUsageNumber } from "./usage.js";
 
 /** ISO date (YYYY-MM-DD) when $/Mtok rates in {@link COST_CLASSES} were last verified. */
 export const COST_TABLE_LAST_REVIEWED = "2026-05-20";
@@ -23,3 +28,66 @@ export function compareCostClass(a: CostClass, b: CostClass): number {
 export function costClassWithinMax(actual: CostClass, max: CostClass): boolean {
   return COST_CLASS_RANK[actual] <= COST_CLASS_RANK[max];
 }
+
+/* -------------------------------------------------------------------------- */
+/* Operator price table (.harness/prices.yaml)                                */
+/* -------------------------------------------------------------------------- */
+
+/** The operator price table lives at `<project root>/.harness/prices.yaml`. */
+export const OPERATOR_PRICE_TABLE_PATH = path.join(".harness", "prices.yaml");
+
+/** Operator prices keyed by lowercased model id (matching is case-insensitive). */
+export type OperatorPriceTable = Map<string, OperatorPriceEntry>;
+
+async function fileExists(candidate: string): Promise<boolean> {
+  try {
+    await access(candidate);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Load the operator price table, walking up from `startDir` so callers rooted
+ * at a team worker's artifact scope still find the project-root table. A
+ * missing or malformed table prices nothing (`undefined`), never a guess.
+ */
+export async function loadOperatorPriceTable(startDir: string): Promise<OperatorPriceTable | undefined> {
+  let dir = path.resolve(startDir);
+  for (;;) {
+    const candidate = path.join(dir, OPERATOR_PRICE_TABLE_PATH);
+    if (await fileExists(candidate)) {
+      try {
+        const document = OperatorPriceTableSchema.parse(parse(await readFile(candidate, "utf8")));
+        const table: OperatorPriceTable = new Map(
+          Object.entries(document.models).map(([model, entry]) => [model.toLowerCase(), entry]),
+        );
+        return table;
+      } catch {
+        return undefined;
+      }
+    }
+    const parent = path.dirname(dir);
+    if (parent === dir) return undefined;
+    dir = parent;
+  }
+}
+
+/** Case-insensitive lookup of one model's operator price entry. */
+export function operatorPriceFor(table: OperatorPriceTable | undefined, model: string | undefined): OperatorPriceEntry | undefined {
+  if (table === undefined || model === undefined) return undefined;
+  return table.get(model.toLowerCase());
+}
+
+/** Price complete measurements only; a counter the stream never reported is never read as zero. */
+export function estimateOperatorCost(
+  totals: { input?: number; output?: number; cache_read?: number; cache_write?: number },
+  price: OperatorPriceEntry,
+): number | undefined {
+  const { input, output, cache_read: cacheRead, cache_write: cacheWrite } = totals;
+  if (!isUsageNumber(input) || !isUsageNumber(output) || !isUsageNumber(cacheRead) || !isUsageNumber(cacheWrite)) return undefined;
+  const cost = (input * price.input_usd_per_million + output * price.output_usd_per_million
+    + cacheRead * price.cache_read_usd_per_million + cacheWrite * price.cache_write_usd_per_million) / 1_000_000;
+  return isUsageNumber(cost) ? cost : undefined;
+}
diff --git a/src/harness/decision-receipts.ts b/src/harness/decision-receipts.ts
new file mode 100644
index 0000000..3f0a3dd
--- /dev/null
+++ b/src/harness/decision-receipts.ts
@@ -0,0 +1,169 @@
+import { createHash, randomUUID } from "node:crypto";
+import { appendFile, mkdir } from "node:fs/promises";
+import path from "node:path";
+import { DecisionReceiptSchema, type DecisionAuthorizer, type DecisionProvider, type DecisionProviderStatus, type DecisionReceipt, type DecisionRecommendation, type DecisionStatus } from "../schema/decisions.js";
+import { assertWritableArtifact } from "../adapters/_artifact-context.js";
+import { writeAtomicArtifact } from "./artifact-transaction.js";
+import { evaluateThreeVerdict, type SystemOneState, type ThreeVerdictOutcome, type ThreeVerdictResult } from "./typesafe.js";
+
+const digest = (value: unknown): string => createHash("sha256").update(JSON.stringify(value)).digest("hex");
+
+type OutcomeMapping = {
+  result?: ThreeVerdictResult;
+  provider_status: DecisionReceipt["provider_status"];
+  uncertain: boolean;
+  reason: string;
+};
+
+function mapOutcome(outcome: ThreeVerdictOutcome): OutcomeMapping {
+  switch (outcome.kind) {
+    case "ok": {
+      const uncertain = outcome.confidence === 0;
+      return {
+        result: outcome,
+        provider_status: uncertain ? "uncertain" : "available",
+        uncertain,
+        reason: uncertain
+          ? "Provider answered every asked question without a discriminating signal; no recommendation applied."
+          : "Advisory judgment consumed; deterministic failures and human authority remain unchanged.",
+      };
+    }
+    case "disabled":
+      return { provider_status: "disabled", uncertain: false,
+        reason: "Judgment disabled because no provider credential is configured." };
+    case "malformed":
+      return { provider_status: "malformed", uncertain: false,
+        reason: "Provider response failed the typed judgment contract; no recommendation applied." };
+    case "unavailable":
+      return { provider_status: "unavailable", uncertain: false,
+        reason: `Provider request unavailable (${outcome.reason}${outcome.status === undefined ? "" : ` ${outcome.status}`}); no recommendation applied.` };
+  }
+}
+
+/**
+ * Persist the provider outcome and the consumer's actual transition, never its raw inputs.
+ *
+ * Provider result kinds map onto the existing receipt statuses: `disabled` and
+ * `unavailable` are recorded as `unavailable`, `malformed` as `malformed`, and an
+ * answer set with no discriminating signal (every asked Noul at the midpoint,
+ * confidence 0) as `uncertain`. Nothing is applied for any of those, so a
+ * deterministic failure and human authority always remain unchanged.
+ */
+export async function recordAcceptanceDecision(options: {
+  missionDir: string;
+  missionId: string;
+  runId?: string;
+  consumer: "verification" | "independent-review";
+  state: SystemOneState;
+  prompt: string;
+  from: string;
+  apply: (gate: ThreeVerdictResult) => string;
+}): Promise<DecisionReceipt> {
+  const started = Date.now();
+  const outcome: ThreeVerdictOutcome = await evaluateThreeVerdict(options.state, options.prompt);
+  const mapped = mapOutcome(outcome);
+  const result = mapped.result;
+  const to = result && !mapped.uncertain ? options.apply(result) : options.from;
+  const applied = to !== options.from;
+  const receipt = DecisionReceiptSchema.parse({
+    schema_version: "uh.decision-receipt.v0",
+    decision_id: `${options.consumer}-${randomUUID()}`,
+    mission_id: options.missionId,
+    run_id: options.runId,
+    kind: "acceptance",
+    status: result ? (mapped.uncertain ? "uncertain" : applied ? "applied" : "advisory")
+      : outcome.kind === "malformed" ? "malformed" : "unavailable",
+    provider_status: mapped.provider_status,
+    authorizer: applied ? "jev" : "none",
+    applied,
+    deterministic_fallback: !result,
+    human_required: true,
+    confidence: result?.confidence,
+    recommendation: result ? { kind: "acceptance", outcome: result.verdict } : undefined,
+    provider: {
+      name: "typesafe",
+      model: result?.model,
+      latency_ms: result?.latency_ms ?? Date.now() - started,
+      ...(result?.usage ? { usage: result.usage } : {}),
+    },
+    input_sha256: digest({ state: options.state, prompt: options.prompt }),
+    response_sha256: result ? digest(result.raw) : undefined,
+    reason: mapped.reason,
+    state_transition: { from: options.from, to, unlocked: [] },
+    created_at: new Date().toISOString(),
+  });
+  const directory = path.join(options.missionDir, "decision-receipts");
+  await assertWritableArtifact(options.missionDir, directory);
+  await mkdir(directory, { recursive: true });
+  const receiptPath = path.join(directory, `${receipt.decision_id}.json`);
+  await assertWritableArtifact(options.missionDir, receiptPath);
+  await writeAtomicArtifact(receiptPath, JSON.stringify(receipt, null, 2));
+  const eventsPath = path.join(options.missionDir, "events.ndjson");
+  await assertWritableArtifact(options.missionDir, eventsPath);
+  await appendFile(eventsPath, JSON.stringify({ type: "decision.recorded", mission_id: options.missionId,
+    run_id: options.runId, decision_id: receipt.decision_id, consumer: options.consumer,
+    status: receipt.status, provider_status: receipt.provider_status, applied,
+    state_transition: receipt.state_transition, timestamp: receipt.created_at }) + "\n");
+  return receipt;
+}
+
+/** The already-composed runtime-selection receipt fields, minus the server-owned identity and timestamp. */
+export interface RouteDecisionRecord {
+  missionId: string;
+  runId?: string;
+  status: DecisionStatus;
+  provider_status: DecisionProviderStatus;
+  authorizer: DecisionAuthorizer;
+  applied: boolean;
+  deterministic_fallback?: boolean;
+  human_required: boolean;
+  confidence?: number;
+  recommendation?: DecisionRecommendation;
+  provider?: DecisionProvider;
+  input_sha256: string;
+  response_sha256?: string;
+  reason: string;
+  state_transition: DecisionReceipt["state_transition"];
+}
+
+/**
+ * Persist a `uh.decision-receipt.v0` runtime-selection receipt and its
+ * `decision.recorded` event. Only the composed decision is written — never the
+ * provider prompt, raw answers, or the mission packet.
+ */
+export async function recordRouteDecision(missionDir: string, record: RouteDecisionRecord): Promise<DecisionReceipt> {
+  const receipt = DecisionReceiptSchema.parse({
+    schema_version: "uh.decision-receipt.v0",
+    decision_id: `runtime-selection-${randomUUID()}`,
+    mission_id: record.missionId,
+    run_id: record.runId,
+    kind: "runtime-selection",
+    status: record.status,
+    provider_status: record.provider_status,
+    authorizer: record.authorizer,
+    applied: record.applied,
+    deterministic_fallback: record.deterministic_fallback,
+    human_required: record.human_required,
+    confidence: record.confidence,
+    recommendation: record.recommendation,
+    provider: record.provider,
+    input_sha256: record.input_sha256,
+    response_sha256: record.response_sha256,
+    reason: record.reason,
+    state_transition: record.state_transition,
+    created_at: new Date().toISOString(),
+  });
+  const directory = path.join(missionDir, "decision-receipts");
+  await assertWritableArtifact(missionDir, directory);
+  await mkdir(directory, { recursive: true });
+  const receiptPath = path.join(directory, `${receipt.decision_id}.json`);
+  await assertWritableArtifact(missionDir, receiptPath);
+  await writeAtomicArtifact(receiptPath, JSON.stringify(receipt, null, 2));
+  const eventsPath = path.join(missionDir, "events.ndjson");
+  await assertWritableArtifact(missionDir, eventsPath);
+  await appendFile(eventsPath, JSON.stringify({ type: "decision.recorded", kind: "runtime-selection",
+    mission_id: record.missionId, run_id: record.runId, decision_id: receipt.decision_id,
+    status: receipt.status, provider_status: receipt.provider_status, applied: record.applied,
+    state_transition: receipt.state_transition, timestamp: receipt.created_at }) + "\n");
+  return receipt;
+}
diff --git a/src/harness/delivery-observatory/project.ts b/src/harness/delivery-observatory/project.ts
index addeff1..724d672 100644
--- a/src/harness/delivery-observatory/project.ts
+++ b/src/harness/delivery-observatory/project.ts
@@ -3,13 +3,19 @@ import { access, readdir, readFile, stat } from "node:fs/promises";
 import path from "node:path";
 import { parse } from "yaml";
 import { MissionSchema, type MissionDocument } from "../../schema/mission.js";
-import { RunsIndexSchema, type RunsIndex } from "../../schema/runs.js";
+import { LatestRunPointerSchema, RunsIndexSchema, type RunsIndex } from "../../schema/runs.js";
 import {
   RuntimeResultSchema,
   VerificationResultSchema,
   type RuntimeResultDocument,
   type VerificationResultDocument,
 } from "../../schema/artifacts.js";
+import { CanonicalTeamStateSchema, type CanonicalTeamState } from "../../schema/team.js";
+import { RuntimeControlSchema, type RuntimeControl } from "../../schema/runtime-control.js";
+import { assertValidRunId } from "../run-id.js";
+import { assertWritableArtifact } from "../../adapters/_artifact-context.js";
+import { readRuntimeAccounting } from "../runtime-accounting.js";
+import { aggregateRuntimeUsage } from "../usage.js";
 import {
   DELIVERY_OBSERVATORY_CONTRACT_VERSION,
   DELIVERY_OBSERVATORY_REDACTION_VERSION,
@@ -26,6 +32,12 @@ type ProjectInput = {
   now?: string;
   sourceObservedAt?: string;
 };
+type TeamWorkerProjection = {
+  state: CanonicalTeamState["workers"][number];
+  runtime: RuntimeResultDocument | null;
+  observedAt: string | null;
+  digest: string | null;
+};
 
 type MissionProjection = {
   mission: MissionDocument;
@@ -39,6 +51,11 @@ type MissionProjection = {
   verificationDigest: string | null;
   runsIndex: RunsIndex | null;
   runsObservedAt: string | null;
+  teamState: CanonicalTeamState | null;
+  teamStateObservedAt: string | null;
+  teamWorkers: TeamWorkerProjection[];
+  nativeControls: Array<{ data: RuntimeControl; digest: string }>;
+  accounting: Awaited<ReturnType<typeof readRuntimeAccounting>> | null;
 };
 
 function opaqueId(prefix: string, ...parts: string[]): string {
@@ -70,6 +87,33 @@ function safeLabel(value: unknown, fallback: string): string {
   return compact;
 }
 
+const SAFE_MODEL_NAMESPACES: Record<string, true> = {
+  anthropic: true, azure: true, claude: true, cohere: true, deepseek: true, gemini: true, google: true,
+  meta: true, "meta-llama": true, mistral: true, mistralai: true, nousresearch: true, openai: true,
+  qwen: true, "x-ai": true,
+};
+const SAFE_ROUTE_COMPONENT = /^[A-Za-z0-9][A-Za-z0-9._-]{0,127}$/;
+
+/**
+ * Native route metadata is provider-controlled and may contain arbitrary
+ * diagnostics. Only compact identifiers are safe to expose; namespaced model
+ * IDs are accepted for known provider namespaces, while path-like and secret-
+ * looking values remain explicitly unknown.
+ */
+function safeRouteIdentifier(value: unknown, kind: "model" | "provider"): string | null {
+  if (typeof value !== "string" || value.length === 0 || value !== value.trim()) return null;
+  if (
+    value.length > 160
+    || /[\u0000-\u001F\u007F\\\s]/.test(value)
+    || /(?:https?:|file:|data:|~|bearer|api[_-]?key|credential|password|payload|secret|token|sk-[A-Za-z0-9]|-----BEGIN)/i.test(value)
+  ) return null;
+  if (kind === "provider") return SAFE_ROUTE_COMPONENT.test(value) ? value : null;
+  const components = value.split("/");
+  if (components.length === 1) return SAFE_ROUTE_COMPONENT.test(value) ? value : null;
+  if (components.length !== 2 || !SAFE_ROUTE_COMPONENT.test(components[0]!) || !SAFE_ROUTE_COMPONENT.test(components[1]!)) return null;
+  return SAFE_MODEL_NAMESPACES[components[0]!.toLowerCase()] ? value : null;
+}
+
 async function readYamlArtifact<T>(filePath: string, schema: { safeParse(value: unknown): { success: boolean; data?: T } }): Promise<{ data: T | null; observedAt: string | null; raw: string | null; rejected: boolean }> {
   let raw: string;
   let observedAt: string;
@@ -132,8 +176,41 @@ function canonicalRole(role: string): "planner" | "executor" | "reviewer" | "int
   return "executor";
 }
 
-function mapOperation(runtime: RuntimeResultDocument | null, runs: RunsIndex | null) {
-  if (runs?.runs.some((run) => run.status === "running")) return "active" as const;
+function mapOperation(
+  runtime: RuntimeResultDocument | null,
+  runs: RunsIndex | null,
+  teamState: CanonicalTeamState | null = null,
+  controls: MissionProjection["nativeControls"] = [],
+  now = new Date().toISOString(),
+) {
+  if (teamState?.status === "running") {
+    const workers = teamState.workers.filter(worker => worker.status === "running");
+    if (workers.length && workers.every(worker => {
+      const control = controls.find(item => item.data.run_id === worker.run_id)?.data;
+      return control && (control.status !== "running" || Date.parse(now) - Date.parse(control.heartbeat_at) > 10_000);
+    })) return "uncertain" as const;
+    return "active" as const;
+  }
+  const running = runs?.runs.filter(run => run.status === "running") ?? [];
+  if (running.length) {
+    let uncertain = false;
+    const terminal: RuntimeControl["status"][] = [];
+    for (const run of running) {
+      const control = controls.find(item => item.data.run_id === run.run_id)?.data;
+      if (!control) {
+        if (run.runtime !== "oh-my-pi" && run.runtime !== "command-code" && run.runtime !== "claude-code") return "active" as const;
+        uncertain = true;
+      } else if (control.status === "running" || control.status === "passed") {
+        if (Date.parse(now) - Date.parse(control.heartbeat_at) <= 10_000) return "active" as const;
+        uncertain = true;
+      } else if (control.settlement_confirmed === false) uncertain = true;
+      else terminal.push(control.status);
+    }
+    if (uncertain) return "uncertain" as const;
+    if (terminal.every(status => status === "cancelled")) return "cancelled" as const;
+    if (terminal.every(status => status === "blocked")) return "blocked" as const;
+    return "failed" as const;
+  }
   if (!runtime) return "queued" as const;
   if (runtime.status === "passed") return "succeeded" as const;
   if (runtime.status === "blocked") return "blocked" as const;
@@ -141,8 +218,16 @@ function mapOperation(runtime: RuntimeResultDocument | null, runs: RunsIndex | n
   return "failed" as const;
 }
 
+function mapWorkerOperation(status: CanonicalTeamState["workers"][number]["status"]) {
+  if (status === "running") return "active" as const;
+  if (status === "succeeded") return "succeeded" as const;
+  if (status === "blocked") return "blocked" as const;
+  if (status === "failed" || status === "error") return "failed" as const;
+  return "queued" as const;
+}
+
 function mapPhase(projection: MissionProjection): "plan" | "execute" | "review" | "verify" | "unknown" {
-  if (projection.runsIndex?.runs.some((run) => run.status === "running")) return "execute";
+  if (projection.teamState?.status === "running" || projection.runsIndex?.runs.some((run) => run.status === "running")) return "execute";
   if (projection.verification) return "verify";
   if (projection.runtime) return "review";
   return projection.mission ? "plan" : "unknown";
@@ -162,10 +247,10 @@ function countOmittedMissionFields(mission: MissionDocument, runtime: RuntimeRes
   return count;
 }
 
-async function collectMissionProjections(root: string): Promise<{ records: MissionProjection[]; rejected: number }> {
+async function collectMissionProjections(root: string, missionsRoot = missionsDir(root)): Promise<{ records: MissionProjection[]; rejected: number }> {
   let entries: Array<{ name: string; isDirectory(): boolean }> = [];
   try {
-    entries = await readdir(missionsDir(root), { withFileTypes: true });
+    entries = await readdir(missionsRoot, { withFileTypes: true });
   } catch {
     return { records: [], rejected: 0 };
   }
@@ -173,15 +258,103 @@ async function collectMissionProjections(root: string): Promise<{ records: Missi
   let rejected = 0;
   for (const entry of entries.sort((a, b) => a.name.localeCompare(b.name))) {
     if (!entry.isDirectory()) continue;
-    const dir = path.join(missionsDir(root), entry.name);
-    const [mission, runtime, verification, runsIndex] = await Promise.all([
+    const dir = path.join(missionsRoot, entry.name);
+    const [mission, runtimeArtifact, verificationArtifact, runsIndex, latest] = await Promise.all([
       readYamlArtifact(path.join(dir, "mission.yaml"), MissionSchema),
       readYamlArtifact(path.join(dir, "runtime-result.yaml"), RuntimeResultSchema),
       readYamlArtifact(path.join(dir, "verification.yaml"), VerificationResultSchema),
       readJsonArtifact(path.join(dir, "runs", "index.json"), RunsIndexSchema),
+      readJsonArtifact(path.join(dir, "latest.json"), LatestRunPointerSchema),
     ]);
-    rejected += Number(mission.rejected) + Number(runtime.rejected) + Number(verification.rejected) + Number(runsIndex.rejected);
+    let selectedRuntime = runtimeArtifact;
+    if (latest.data?.run_id) {
+      try {
+        assertValidRunId(latest.data.run_id);
+        const runDirectory = path.join(dir, "runs", latest.data.run_id);
+        await assertWritableArtifact(dir, runDirectory);
+        const resultPath = path.join(runDirectory, "runtime-result.yaml");
+        await assertWritableArtifact(dir, resultPath);
+        selectedRuntime = await readYamlArtifact(resultPath, RuntimeResultSchema);
+      } catch { selectedRuntime = { data: null, observedAt: null, raw: null, rejected: true }; }
+    }
+    const runtime = runsIndex.data?.runs.some((run) => run.status === "running")
+      ? { data: null, observedAt: null, raw: null, rejected: selectedRuntime.rejected }
+      : selectedRuntime;
+    let teamState: { data: CanonicalTeamState | null; observedAt: string | null; raw: string | null; rejected: boolean } = {
+      data: null, observedAt: null, raw: null, rejected: false,
+    };
+    if (latest.data?.run_id) {
+      try {
+        assertValidRunId(latest.data.run_id);
+        const teamPath = path.join(dir, "runs", latest.data.run_id, "team-state.json");
+        await assertWritableArtifact(dir, path.dirname(teamPath));
+        await assertWritableArtifact(dir, teamPath);
+        teamState = await readJsonArtifact(teamPath, CanonicalTeamStateSchema);
+      } catch { teamState = { data: null, observedAt: null, raw: null, rejected: true }; }
+    }
+    const verification = teamState.data
+      ? await readYamlArtifact(path.join(dir, "runs", teamState.data.run_id, "verification.yaml"), VerificationResultSchema)
+      : verificationArtifact;
+    const nativeControls: MissionProjection["nativeControls"] = [];
+    const teamWorkers: TeamWorkerProjection[] = [];
+    const collectControl = async (directory: string, runId: string, runtimeId?: string): Promise<void> => {
+      if (!mission.data) return;
+      try {
+        assertValidRunId(runId);
+        await assertWritableArtifact(dir, directory);
+        const controlPath = path.join(directory, "runtime-control.json");
+        await assertWritableArtifact(dir, controlPath);
+        const control = await readJsonArtifact(controlPath, RuntimeControlSchema);
+        rejected += Number(control.rejected);
+        if (!control.data) return;
+        if (control.data.mission_id !== mission.data.id || control.data.run_id !== runId ||
+            (runtimeId && control.data.runtime !== runtimeId)) { rejected++; return; }
+        nativeControls.push({ data: control.data, digest: digest(control.raw!) });
+      } catch { rejected++; }
+    };
+    if (teamState.data) {
+      for (const worker of teamState.data.workers) {
+        const workerRoot = path.resolve(dir, "team", worker.artifact_scope);
+        await collectControl(path.join(workerRoot, ".harness", "missions", mission.data?.id ?? entry.name, "runs", worker.run_id), worker.run_id, worker.adapter);
+        if (!worker.runtime_result_path) {
+          teamWorkers.push({ state: worker, runtime: null, observedAt: null, digest: null });
+          continue;
+        }
+        try { await assertWritableArtifact(dir, path.resolve(root, worker.runtime_result_path)); }
+        catch {
+          rejected++;
+          teamWorkers.push({ state: worker, runtime: null, observedAt: null, digest: null });
+          continue;
+        }
+        const workerRuntime = await readYamlArtifact(
+          path.resolve(root, worker.runtime_result_path),
+          RuntimeResultSchema,
+        );
+        rejected += Number(workerRuntime.rejected);
+        teamWorkers.push({
+          state: worker,
+          runtime: workerRuntime.data,
+          observedAt: workerRuntime.observedAt,
+          digest: workerRuntime.raw ? digest(workerRuntime.raw) : null,
+        });
+      }
+    }
+    rejected += Number(mission.rejected)
+      + Number(runtime.rejected)
+      + Number(verification.rejected)
+      + Number(runsIndex.rejected)
+      + Number(latest.rejected)
+      + Number(teamState.rejected);
     if (!mission.data || !mission.observedAt) continue;
+    for (const run of runsIndex.data?.runs ?? []) {
+      if (!run.archived) await collectControl(path.join(dir, "runs", run.run_id), run.run_id, run.runtime);
+    }
+    nativeControls.sort((a, b) => Date.parse(a.data.heartbeat_at) - Date.parse(b.data.heartbeat_at));
+    let accounting: MissionProjection["accounting"] = null;
+    if (latest.data && runtime.data) {
+      try { accounting = await readRuntimeAccounting(root, mission.data.id, [latest.data.run_id]); }
+      catch { rejected++; accounting = { facts: {}, attemptRunIds: [], receipts: [] }; }
+    }
     records.push({
       mission: mission.data,
       missionObservedAt: mission.observedAt,
@@ -194,11 +367,17 @@ async function collectMissionProjections(root: string): Promise<{ records: Missi
       verificationDigest: verification.raw ? digest(verification.raw) : null,
       runsIndex: runsIndex.data,
       runsObservedAt: runsIndex.observedAt,
+      teamState: teamState.data,
+      teamStateObservedAt: teamState.observedAt,
+      teamWorkers,
+      nativeControls,
+      accounting,
     });
   }
   return { records, rejected };
 }
 
+
 export async function projectDeliveryObservatory(root: string, input: ProjectInput = {}): Promise<DeliveryObservatorySnapshot> {
   const generatedAt = input.now ?? new Date().toISOString();
   const projectYaml = await readYamlArtifact(path.join(root, ".harness", "project.yaml"), {
@@ -218,17 +397,46 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
 
   const workItems = records.map((record) => {
     omitted += countOmittedMissionFields(record.mission, record.runtime, record.verification);
+    omitted += record.nativeControls.reduce((count, { data }) => count + 1 + Number(Boolean(data.session_id)) + Number(Boolean(data.stop_reason)), 0);
     const workId = opaqueId("work", projectId, record.mission.id);
     const missionEvidenceId = opaqueId("evidence", workId, "mission");
     const runtimeEvidenceId = record.runtime ? opaqueId("evidence", workId, "runtime") : null;
     const verificationEvidenceId = record.verification ? opaqueId("evidence", workId, "verification") : null;
-    const operation = mapOperation(record.runtime, record.runsIndex);
-    const startedAt = record.runsIndex?.runs.at(-1)?.started_at ?? record.runtime?.started_at ?? null;
-    const elapsed = startedAt ? Math.max(0, Date.parse(record.runtime?.finished_at ?? generatedAt) - Date.parse(startedAt)) : null;
+    const operation = mapOperation(record.runtime, record.runsIndex, record.teamState, record.nativeControls, generatedAt);
+    const startedAt = record.teamState?.started_at ?? record.runsIndex?.runs.at(-1)?.started_at ?? record.runtime?.started_at ?? null;
+    const elapsed = startedAt ? Math.max(0, Date.parse(record.teamState?.finished_at ?? record.runtime?.finished_at ?? generatedAt) - Date.parse(startedAt)) : null;
     const attentionId = record.mission.verification.review_gates.length > 0 && operation !== "succeeded"
       ? opaqueId("decision", workId, "review-gate")
       : null;
     const blockerId = operation === "blocked" ? opaqueId("event", workId, "blocked") : null;
+    const runtime = record.runtime;
+    const activeRuns = record.runsIndex?.runs.filter(run => run.status === "running") ?? [];
+    const activeControls = activeRuns.map(run => record.nativeControls.find(control => control.data.run_id === run.run_id)?.data);
+    const liveFacts = activeRuns.length > 0 && !record.teamState
+      ? aggregateRuntimeUsage(activeControls.map(control => control ? { usage: control.usage } : undefined))
+      : undefined;
+    const accountingFacts = liveFacts ?? record.accounting?.facts ?? runtime;
+    const usage = accountingFacts?.usage;
+    const cost = accountingFacts?.cost_usd ?? usage?.cost_usd;
+    const costBasis = accountingFacts?.cost_basis ?? usage?.cost_basis;
+    const accountingEvidenceRefs = liveFacts
+      ? activeControls.flatMap(control => control ? [opaqueId("evidence", workId, "control", control.run_id)] : [])
+      : record.accounting
+      ? record.accounting.receipts.map(receipt => receipt.runId === record.accounting!.attemptRunIds[0]
+        ? opaqueId("evidence", workId, "runtime") : opaqueId("evidence", workId, "accounting", receipt.runId))
+      : runtimeEvidenceId ? [runtimeEvidenceId] : [];
+    const safeModel = safeRouteIdentifier(runtime?.model, "model");
+    const safeProvider = safeRouteIdentifier(runtime?.provider, "provider");
+    if (runtime?.model && !safeModel) omitted += 1;
+    if (runtime?.provider && !safeProvider) omitted += 1;
+    const latestControl = record.nativeControls.at(-1)?.data;
+    const controlEvidenceId = latestControl ? opaqueId("evidence", workId, "control", latestControl.run_id) : null;
+    const staleNative = record.nativeControls.some(({ data }) => data.status === "running"
+      && record.runsIndex?.runs.some(run => run.run_id === data.run_id && run.status === "running")
+      && Date.parse(generatedAt) - Date.parse(data.heartbeat_at) > 10_000);
+    const observation = (operation === "active" || operation === "uncertain") && latestControl
+      ? latestControl.heartbeat_at
+      : latestTimestamp([record.teamStateObservedAt, record.runsObservedAt, record.runtimeObservedAt, record.verificationObservedAt, record.missionObservedAt], generatedAt);
     return {
       work_item_id: workId,
       source_id: SOURCE_ID,
@@ -238,24 +446,26 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
       operation,
       state: {
         assertion: mapPhase(record) === "plan" ? "observed" as const : "inferred" as const,
-        freshness: recordFreshness(latestTimestamp([record.runsObservedAt, record.runtimeObservedAt, record.verificationObservedAt, record.missionObservedAt], generatedAt), generatedAt),
-        observed_at: latestTimestamp([record.runsObservedAt, record.runtimeObservedAt, record.verificationObservedAt, record.missionObservedAt], generatedAt),
+        freshness: staleNative ? "stale" as const : recordFreshness(observation, generatedAt),
+        observed_at: observation,
       },
       elapsed_ms: Number.isFinite(elapsed) ? elapsed : null,
       owner_agent_ref: null,
       requested_model: unknown("not_reported"),
-      resolved_model: unknown("not_reported"),
-      provider: unknown("not_reported"),
+      resolved_model: safeModel ? known(safeModel, runtimeEvidenceId ? [runtimeEvidenceId] : []) : runtime?.model ? unknown("unauthorized") : unknown("not_reported"),
+      provider: safeProvider ? known(safeProvider, runtimeEvidenceId ? [runtimeEvidenceId] : []) : runtime?.provider ? unknown("unauthorized") : unknown("not_reported"),
       harness: known("Ultimate Harness", [missionEvidenceId]),
-      adapter: record.runtime ? known(record.runtime.runtime, runtimeEvidenceId ? [runtimeEvidenceId] : []) : unknown("not_reported"),
+      adapter: runtime ? known(runtime.runtime, runtimeEvidenceId ? [runtimeEvidenceId] : []) : unknown("not_reported"),
       reasoning_effort: unknown("unsupported"),
-      cost: unknown("unsupported"),
-      tokens: unknown("unsupported"),
+      cost: cost === undefined ? unknown("not_reported") : { state: "known" as const, value: cost,
+        method: costBasis === "provider_reported" ? "reported" as const : "estimated" as const, evidence_refs: accountingEvidenceRefs },
+      tokens: usage?.total_tokens === undefined ? unknown("not_reported") : { state: "known" as const, value: usage.total_tokens,
+        method: usage.source === "estimated" ? "estimated" as const : "reported" as const, evidence_refs: accountingEvidenceRefs },
       latency_ms: elapsed === null ? unknown("not_reported") : known(elapsed, runtimeEvidenceId ? [runtimeEvidenceId] : []),
       blocker_refs: blockerId ? [blockerId] : [],
       attention_refs: attentionId ? [attentionId] : [],
-      last_evidence_ref: verificationEvidenceId ?? runtimeEvidenceId ?? missionEvidenceId,
-      risk: operation === "blocked" || operation === "failed" ? "high" as const : attentionId ? "medium" as const : "unknown" as const,
+      last_evidence_ref: verificationEvidenceId ?? runtimeEvidenceId ?? controlEvidenceId ?? missionEvidenceId,
+      risk: operation === "blocked" || operation === "failed" || operation === "uncertain" ? "high" as const : attentionId ? "medium" as const : "unknown" as const,
     };
   });
 
@@ -279,11 +489,43 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
       digest: record.verificationDigest, media_type: "application/yaml", observed_at: record.verificationObservedAt,
       classification: "internal", availability: "available",
     });
+    for (const worker of record.teamState?.workers ?? []) {
+      const workerProjection = record.teamWorkers.find((item) => item.state.id === worker.id);
+      if (!workerProjection?.runtime) continue;
+      base.push({
+        evidence_id: opaqueId("evidence", workId, "worker", worker.id, worker.run_id),
+        kind: "route_receipt",
+        safe_title: `${safeLabel(record.mission.name, "Work item")} ${safeLabel(worker.role, "worker")} route receipt`,
+        project_ref: projectId,
+        digest: workerProjection.digest,
+        media_type: "application/yaml",
+        observed_at: workerProjection.observedAt,
+        classification: "internal",
+        availability: "available",
+      });
+    }
+    for (const control of record.nativeControls) {
+      base.push({
+        evidence_id: opaqueId("evidence", workId, "control", control.data.run_id), kind: "route_receipt",
+        safe_title: "Native runtime lifecycle receipt", project_ref: projectId, digest: control.digest,
+        media_type: "application/json", observed_at: control.data.heartbeat_at,
+        classification: "internal", availability: "available",
+      });
+    }
+    for (const receipt of record.accounting?.receipts ?? []) {
+      if (receipt.runId === record.accounting?.attemptRunIds[0]) continue;
+      base.push({
+        evidence_id: opaqueId("evidence", workId, "accounting", receipt.runId), kind: "route_receipt",
+        safe_title: "Recovered attempt accounting receipt", project_ref: projectId, digest: receipt.digest,
+        media_type: "application/yaml", observed_at: record.runtimeObservedAt,
+        classification: "internal", availability: "available",
+      });
+    }
     return base;
   });
 
   const decisions = records.flatMap((record) => {
-    if (record.mission.verification.review_gates.length === 0 || mapOperation(record.runtime, record.runsIndex) === "succeeded") return [];
+    if (record.mission.verification.review_gates.length === 0 || mapOperation(record.runtime, record.runsIndex, record.teamState, record.nativeControls, generatedAt) === "succeeded") return [];
     const workId = opaqueId("work", projectId, record.mission.id);
     return [{
       decision_id: opaqueId("decision", workId, "review-gate"), kind: "human_gate" as const,
@@ -312,6 +554,37 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
         state: { assertion: "observed", freshness: recordFreshness(record.runsObservedAt, generatedAt), observed_at: record.runsObservedAt },
       });
     }
+    for (const worker of record.teamState?.workers ?? []) {
+      const workerProjection = record.teamWorkers.find((item) => item.state.id === worker.id);
+      const workerEventId = opaqueId("event", workId, "worker", worker.id, worker.run_id);
+      result.push({
+        event_id: workerEventId,
+        kind: worker.status === "failed" || worker.status === "blocked" || worker.status === "error" ? "failure" : "status_change",
+        occurred_at: worker.finished_at ?? worker.started_at,
+        safe_summary: `Worker ${canonicalRole(worker.role)} status changed to ${worker.status}.`,
+        work_item_ref: workId,
+        evidence_refs: workerProjection?.runtime
+          ? [opaqueId("evidence", workId, "worker", worker.id, worker.run_id)]
+          : [],
+        state: {
+          assertion: "observed",
+          freshness: recordFreshness(workerProjection?.observedAt ?? record.teamStateObservedAt, generatedAt),
+          observed_at: workerProjection?.observedAt ?? record.teamStateObservedAt,
+        },
+      });
+    }
+    for (const { data } of record.nativeControls) {
+      const freshness = data.status === "running" && Date.parse(generatedAt) - Date.parse(data.heartbeat_at) > 10_000
+        ? "stale" : recordFreshness(data.heartbeat_at, generatedAt);
+      result.push({
+        event_id: opaqueId("event", workId, "control", data.run_id),
+        kind: data.status === "failed" || data.status === "blocked" ? "failure" : "status_change",
+        occurred_at: data.heartbeat_at, work_item_ref: workId,
+        safe_summary: `Native runtime ${data.status}; ${data.ready_at ? "ready" : "not ready"}; turns ${data.turns}; in-flight tools ${data.inflight_tools}; denials ${data.denials}${data.stop_code ? `; stop ${data.stop_code}` : ""}${data.peak_memory_bytes === undefined ? "" : `; peak job memory ${data.peak_memory_bytes} bytes`}.`,
+        evidence_refs: [opaqueId("evidence", workId, "control", data.run_id)],
+        state: { assertion: "observed", freshness, observed_at: data.heartbeat_at },
+      });
+    }
     return result;
   });
 
@@ -325,6 +598,16 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
     safe_label: label, task_shape_ref: null, value: unknown(family === "pareto" ? "not_comparable" : "unsupported"), unit, coverage: "unknown" as const,
   }));
 
+  const unavailableCapabilities = [
+    ...(records.some((record) => Boolean(safeRouteIdentifier(record.runtime?.model, "model") || safeRouteIdentifier(record.runtime?.provider, "provider"))) ? [] : ["model-route"]),
+    ...(workItems.some(item => item.tokens.state === "known") ? [] : ["token-usage"]),
+    ...(workItems.some(item => item.cost.state === "known") ? [] : ["cost"]),
+    "reasoning-effort",
+    "dora",
+    "product-metrics",
+    "authority-links",
+  ];
+
   const snapshot = {
     contract_version: DELIVERY_OBSERVATORY_CONTRACT_VERSION,
     snapshot_id: opaqueId("snapshot", projectId, generatedAt, observedAt),
@@ -337,13 +620,47 @@ export async function projectDeliveryObservatory(root: string, input: ProjectInp
       transport: "filesystem" as const, health: "reachable" as const, observed_at: observedAt,
       ingested_at: generatedAt, freshness: "fresh" as const, stale_after_ms: SOURCE_STALE_AFTER_MS,
       coverage: "partial" as const, omitted_fields: omitted, rejected_records: rejected,
-      unavailable_capabilities: ["model-route", "token-usage", "cost", "reasoning-effort", "dora", "product-metrics", "authority-links"],
+      unavailable_capabilities: unavailableCapabilities,
     }],
     projects: [{ project_id: projectId, safe_name: projectName }],
     work_items: workItems,
-    agents: records.flatMap((record) => {
+    agents: records.flatMap<DeliveryObservatorySnapshot["agents"][number]>((record) => {
       const team = record.mission.team;
       if (!team) return [];
+      if (record.teamState) {
+        const configured = [
+          ...record.teamState.workers.map((worker, index) => ({ role: worker.role, adapter: worker.adapter, index, worker })),
+          {
+            role: record.teamState.leader.role,
+            adapter: record.teamState.leader.adapter,
+            index: record.teamState.workers.length,
+            leader: record.teamState.leader,
+          },
+        ];
+        return configured.map((agent, index) => {
+          const role = canonicalRole(agent.role);
+          let workerStatus: DeliveryObservatorySnapshot["agents"][number]["operation"] = "worker" in agent ? mapWorkerOperation(agent.worker.status) : agent.leader.status === "integrating" ? "active" : agent.leader.status === "succeeded" ? "succeeded" : agent.leader.status === "failed" ? "failed" : agent.leader.status === "blocked" ? "blocked" : "queued";
+          const control = "worker" in agent ? record.nativeControls.find(item => item.data.run_id === agent.worker.run_id)?.data : undefined;
+          if (workerStatus === "active" && control) {
+            if (control.settlement_confirmed === false) workerStatus = "uncertain";
+            else if (control.status === "failed" || control.status === "blocked" || control.status === "cancelled") workerStatus = control.status;
+            else if (Date.parse(generatedAt) - Date.parse(control.heartbeat_at) > 10_000) workerStatus = "uncertain";
+          }
+          const observed = control?.heartbeat_at ?? ("worker" in agent ? agent.worker.finished_at ?? agent.worker.started_at : record.teamStateObservedAt);
+          return {
+            agent_id: opaqueId("agent", projectId, record.mission.id, agent.adapter, agent.role, String(agent.index), String(index)),
+            safe_name: `Configured ${role}`,
+            roles: [role],
+            family_profile_ref: null,
+            operation: workerStatus,
+            state: {
+              assertion: "observed" as const,
+              freshness: workerStatus === "uncertain" ? "stale" as const : recordFreshness(observed, generatedAt),
+              observed_at: observed,
+            },
+          };
+        });
+      }
       const configured = [
         ...team.workers.flatMap((worker) => Array.from({ length: worker.count }, (_, index) => ({ role: worker.role, adapter: worker.adapter, index }))),
         { role: team.leader.role ?? "integrator", adapter: team.leader.adapter, index: 0 },
diff --git a/src/harness/diff-capture.ts b/src/harness/diff-capture.ts
index 5fba063..6895c04 100644
--- a/src/harness/diff-capture.ts
+++ b/src/harness/diff-capture.ts
@@ -2,19 +2,20 @@
  * Diff capture helper used by every runtime adapter (UH-34).
  *
  * Replaces the previous per-adapter `git diff --no-color` calls. Plain
- * `git diff` skips untracked new files, which is the most common shape
- * of a mission output (codex/oh-my-pi/hermes writing one or more brand
- * new files). The captured `diff.patch` would then look empty even when
- * the mission produced real artifacts.
+ * `git diff` skips untracked new files, which is the most common shape of a
+ * mission output. Untracked files are rendered with `git diff --no-index`
+ * without mutating the repository index.
  *
- * Strategy: run `git add --intent-to-add` against the untracked-file
- * list (excluding gitignored paths) before `git diff`. `git add -N`
- * does NOT stage blob content; it just marks the path so `git diff`
- * emits a new-file hunk for it. The index mutation is bounded and
- * harmless inside a discardable sandbox worktree.
+ * Generated bookkeeping under sandbox/audit directories and mission run
+ * mirrors is excluded; harness configuration such as adapters, workflows,
+ * project metadata, and mission packets remains diffable.
  *
- * Falls back to an empty patch + an error entry when git is unavailable
- * or `cwd` is not a checkout, matching the prior contract.
+ * Falls back to an empty patch + an error entry when git is unavailable or
+ * `cwd` is not a checkout, matching the prior contract. Each git command is
+ * retried once after a short settle delay so a transient spawn failure (for
+ * example during a host memory shortage) cannot fail an otherwise settled
+ * run; callers must treat a capture failure after a confirmed settlement as
+ * `diff_capture` bookkeeping, never as a status or exit-code change.
  */
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
@@ -27,48 +28,108 @@ export interface DiffCaptureResult {
 }
 
 const GIT_MAX_BUFFER = 50 * 1024 * 1024;
+/** One settle-and-retry round for transient git spawn failures (host memory shortage, AV scans). */
+const GIT_RETRY_DELAY_MS = 500;
+
+function delay(ms: number): Promise<void> {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
 
 /**
- * Capture the working-tree diff at `cwd`, including untracked new files.
- *
- * Steps:
- *   1. `git ls-files --others --exclude-standard -z` to enumerate
- *      untracked (non-ignored) paths.
- *   2. `git add --intent-to-add -- <paths>` to mark them so the next
- *      `git diff` produces a new-file diff for each.
- *   3. `git diff --no-color` to capture both modified-tracked and the
- *      now-intent-to-added untracked files in one unified patch.
- *
- * When step 1 fails (git missing, no repo), returns `{ patch: "",
- * errors }` matching the prior contract. Step 2 is a no-op when there
- * are zero untracked files. Step 3 is the same call the previous
- * implementation made.
+ * Run one git command. A failed invocation is retried exactly once after a
+ * short settle delay before giving up, so a transient spawn failure cannot
+ * fail an otherwise settled run. Exit codes listed in `toleratedExitCodes`
+ * are expected outcomes of the command (e.g. `git diff --no-index` exits 1
+ * when differences exist) and are rethrown untouched so the caller can
+ * interpret them without paying the retry delay.
+ */
+async function execGit(
+  args: string[],
+  cwd: string,
+  toleratedExitCodes: readonly (number | string)[] = [],
+): Promise<string> {
+  try {
+    return (await execFileP("git", args, { cwd, maxBuffer: GIT_MAX_BUFFER })).stdout;
+  } catch (firstError) {
+    const code = (firstError as { code?: number | string }).code;
+    if (toleratedExitCodes.some((tolerated) => Number(tolerated) === Number(code))) throw firstError;
+    await delay(GIT_RETRY_DELAY_MS);
+    return (await execFileP("git", args, { cwd, maxBuffer: GIT_MAX_BUFFER })).stdout;
+  }
+}
+
+/**
+ * The record a diff capture failure leaves on a runtime result after the run
+ * has already settled. It is bookkeeping, never a status or exit-code change:
+ * consumers must not overturn a confirmed settlement because of it.
  */
+export function diffCaptureFailureRecord(errors: readonly string[]): string {
+  return `diff_capture: ${JSON.stringify({ status: "failed", error: errors.filter((entry) => entry.trim().length > 0).join("; ") })}`;
+}
+
+function isGeneratedHarnessPath(filePath: string): boolean {
+  const normalized = filePath.replaceAll("\\", "/");
+  if (normalized.startsWith(".harness/sandboxes/") || normalized.startsWith(".harness/audit/")) return true;
+  const parts = normalized.split("/");
+  if (parts[0] !== ".harness" || parts[1] !== "missions" || parts.length < 4) return false;
+  return parts[3] === "runs" || ["latest.json", "runtime-result.yaml", "verification.yaml", "promotion.yaml"].includes(parts[3]);
+}
+
+const GENERATED_PATHSPEC_EXCLUDES = [
+  ":(exclude).harness/sandboxes/**",
+  ":(exclude).harness/audit/**",
+  ":(exclude).harness/missions/**/runs/**",
+  ":(exclude).harness/missions/**/latest.json",
+  ":(exclude).harness/missions/**/runtime-result.yaml",
+  ":(exclude).harness/missions/**/verification.yaml",
+  ":(exclude).harness/missions/**/promotion.yaml",
+] as const;
+
+function diffFailure(err: unknown): DiffCaptureResult {
+  return {
+    patch: "",
+    errors: [`Diff capture failed: ${(err as Error).message}`],
+  };
+}
+
 export async function captureDiffWithUntracked(cwd: string): Promise<DiffCaptureResult> {
   try {
-    const { stdout: untrackedRaw } = await execFileP(
-      "git",
+    // A HEAD baseline is required: without one, a successful empty result
+    // would silently discard staged content and cannot be applied to a base.
+    await execGit(["rev-parse", "--verify", "HEAD"], cwd);
+
+    const untrackedRaw = await execGit(
       ["ls-files", "--others", "--exclude-standard", "-z"],
-      { cwd, maxBuffer: GIT_MAX_BUFFER },
+      cwd,
     );
-    const untracked = untrackedRaw.split("\0").filter((p) => p.length > 0);
-    if (untracked.length > 0) {
-      // `git add -N` doesn't stage content; the next `git diff` then
-      // includes a /dev/null -> <file> hunk for each path.
-      await execFileP("git", ["add", "--intent-to-add", "--", ...untracked], {
-        cwd,
-        maxBuffer: GIT_MAX_BUFFER,
-      });
-    }
-    const { stdout: diff } = await execFileP("git", ["diff", "--no-color"], {
+    const untracked = untrackedRaw
+      .split("\0")
+      .filter((p) => p.length > 0 && !isGeneratedHarnessPath(p));
+
+    // Comparing HEAD with the worktree includes both staged and unstaged
+    // changes while leaving the index untouched. --binary is required for
+    // binary changes to remain applicable on a clean base.
+    const trackedDiff = await execGit(
+      ["diff", "HEAD", "--binary", "--no-color", "--", ".", ...GENERATED_PATHSPEC_EXCLUDES],
       cwd,
-      maxBuffer: GIT_MAX_BUFFER,
-    });
-    return { patch: diff };
+    );
+    const patches = trackedDiff.length > 0 ? [trackedDiff] : [];
+    for (const relativePath of untracked) {
+      try {
+        const output = await execGit(
+          ["diff", "--no-index", "--binary", "--no-color", "--", "/dev/null", relativePath],
+          cwd,
+          [1],
+        );
+        if (output.length > 0) patches.push(output);
+      } catch (err) {
+        const output = err as { stdout?: string; code?: number | string };
+        if (Number(output.code) !== 1 || typeof output.stdout !== "string") throw err;
+        if (output.stdout.length > 0) patches.push(output.stdout);
+      }
+    }
+    return { patch: patches.join("") };
   } catch (err) {
-    return {
-      patch: "",
-      errors: [`Diff capture failed: ${(err as Error).message}`],
-    };
+    return diffFailure(err);
   }
 }
diff --git a/src/harness/dispatch-context.ts b/src/harness/dispatch-context.ts
index 38e7de8..718a20a 100644
--- a/src/harness/dispatch-context.ts
+++ b/src/harness/dispatch-context.ts
@@ -29,11 +29,13 @@ export interface DispatchContextIssue {
 export interface DispatchContextArtifact {
   path: string;
   type?: string;
+  completion_marker?: string;
 }
 
 export interface DispatchContextAcceptanceCriterion {
   id: string;
   description: string;
+  check_command?: string;
   severity: "block" | "warn";
 }
 
@@ -42,6 +44,7 @@ export interface DispatchContext {
   workflow?: WorkflowDocument;
   issues: DispatchContextIssue[];
   readFirst: string[];
+  constraints: string[];
   expectedArtifacts: DispatchContextArtifact[];
   verificationChecks: string[];
   acceptanceCriteria: DispatchContextAcceptanceCriterion[];
@@ -80,11 +83,14 @@ export function buildDispatchContext(
       url: i.url,
     })),
     readFirst: [...mission.read_first],
-    expectedArtifacts: mission.expected_artifacts.map((a) => ({ path: a.path, type: a.type })),
+    constraints: [...mission.constraints],
+    expectedArtifacts: mission.expected_artifacts.map((a) => ({ path: a.path, type: a.type,
+      ...(a.completion_marker !== undefined ? { completion_marker: a.completion_marker } : {}) })),
     verificationChecks: [...(mission.verification.checks ?? [])],
     acceptanceCriteria: mission.acceptance_criteria.map((ac) => ({
       id: ac.id,
       description: ac.description,
+      ...(ac.check_command !== undefined ? { check_command: ac.check_command } : {}),
       severity: ac.severity,
     })),
     memoryBlock: options.memoryBlock,
diff --git a/src/harness/exit-codes.ts b/src/harness/exit-codes.ts
new file mode 100644
index 0000000..f4d4f7a
--- /dev/null
+++ b/src/harness/exit-codes.ts
@@ -0,0 +1,31 @@
+export const EXIT_CODE_PASSED = 0;
+export const EXIT_CODE_FAILED = 1;
+export const EXIT_CODE_BLOCKED = 2;
+export const EXIT_CODE_CANCELLED = 130;
+export const EXIT_CODE_SIGNAL = 143;
+
+/**
+ * Pure mapping from run settlement status and stop code to process exit code.
+ *
+ * Contract:
+ * - 0: passed
+ * - 1: failed (default for non-passing outcomes)
+ * - 2: blocked (including preflight and fleet refusals)
+ * - 130: cancelled
+ * - 143: reserved for SIGINT/SIGTERM termination
+ */
+export function exitCodeForRun(
+  status?: string | null,
+  stopCode?: string | null,
+): number {
+  if (status === "cancelled" || stopCode === "cancelled") {
+    return EXIT_CODE_CANCELLED;
+  }
+  if (status === "blocked" || stopCode === "blocked") {
+    return EXIT_CODE_BLOCKED;
+  }
+  if (status === "passed") {
+    return EXIT_CODE_PASSED;
+  }
+  return EXIT_CODE_FAILED;
+}
diff --git a/src/harness/experience-store.ts b/src/harness/experience-store.ts
new file mode 100644
index 0000000..b164718
--- /dev/null
+++ b/src/harness/experience-store.ts
@@ -0,0 +1,304 @@
+import type { Dirent } from "node:fs";
+import { readdir, readFile } from "node:fs/promises";
+import path from "node:path";
+import { parse } from "yaml";
+import { validateMission } from "../schema/mission.js";
+import {
+  validateRuntimeResult,
+  validateVerificationResult,
+  type RuntimeResultDocument,
+  type VerificationResultDocument,
+} from "../schema/artifacts.js";
+import { RuntimeControlSchema, RuntimeRecoveryRecordSchema, type RuntimeControl } from "../schema/runtime-control.js";
+import { CanonicalTeamStateSchema, type CanonicalTeamState } from "../schema/team.js";
+import { readNativeCostFacts, resolveRunCost, tokenTotalsFromUsage, type RunTokenTotals } from "./runtime-accounting.js";
+import { loadOperatorPriceTable, type OperatorPriceTable } from "./cost-table.js";
+
+export type RunRecord = {
+  mission_id: string;
+  run_id: string;
+  runtime?: string;
+  provider?: string;
+  model?: string;
+  workflow_profile?: string;
+  /** Adopted session template id, from `session-template.json` when present. */
+  template_id?: string;
+  /** Adopted session template tier, from `session-template.json` when present. */
+  tier?: string;
+  status?: string;
+  stop_code?: string;
+  stop_reason?: string;
+  started_at?: string;
+  finished_at?: string;
+  duration_ms?: number;
+  turns?: number;
+  denials?: number;
+  input_tokens?: number;
+  output_tokens?: number;
+  cache_read_tokens?: number;
+  cache_write_tokens?: number;
+  /** Token totals summed from the run's native event stream, or its recorded usage. */
+  token_totals?: RunTokenTotals;
+  cost_usd?: number;
+  cost_basis?: string;
+  resumed_from?: string;
+  verification_status?: string;
+  peak_memory_bytes?: number;
+  /** Provenance of `cost_usd`: reported by the runtime, or estimated by the harness. */
+  cost_source?: "reported" | "estimated";
+  /** Why `cost_usd` is unknown; present exactly when it is. */
+  cost_unknown_reason?: string;
+  /** Team context when this run was a worker dispatched by `run-team`. */
+  team?: { mission_id: string; role: string };
+  /** Experiment provenance, from `experiment.json` in the run directory when present. */
+  experiment?: { id: string; arm: string; split: string };
+};
+
+export type RunGroupSummary = {
+  key: string | undefined;
+  runs: number;
+  passed: number;
+  success_rate: number;
+  known_cost_runs: number;
+  total_cost_usd: number | undefined;
+  mean_cost_usd: number | undefined;
+  mean_duration_ms: number | undefined;
+  cache_read_share: number | undefined;
+};
+
+type Usage = {
+  input_tokens?: number;
+  output_tokens?: number;
+  cache_read_tokens?: number;
+  cache_write_tokens?: number;
+  cost_usd?: number;
+  cost_basis?: string;
+  provider?: string;
+  model?: string;
+};
+
+const isFiniteNonNegative = (value: unknown): value is number => typeof value === "number" && Number.isFinite(value) && value >= 0;
+const optionalNumber = (value: unknown): number | undefined => isFiniteNonNegative(value) ? value : undefined;
+const optionalString = (value: unknown): string | undefined => typeof value === "string" ? value : undefined;
+
+async function readYamlFile(filePath: string): Promise<unknown | undefined> {
+  try { return parse(await readFile(filePath, "utf8")); } catch { return undefined; }
+}
+
+async function readJsonFile(filePath: string): Promise<unknown | undefined> {
+  try { return JSON.parse(await readFile(filePath, "utf8")); } catch { return undefined; }
+}
+
+async function readMissionWorkflow(missionPath: string): Promise<string | undefined> {
+  const parsed = await readYamlFile(missionPath);
+  if (parsed === undefined) return undefined;
+  try { return validateMission(parsed).workflow_profile; } catch { return undefined; }
+}
+
+function usageOf(result: RuntimeResultDocument | undefined, control: RuntimeControl | undefined): Usage | undefined {
+  return result?.usage ?? control?.usage;
+}
+
+function duration(startedAt: string | undefined, finishedAt: string | undefined): number | undefined {
+  if (!startedAt || !finishedAt) return undefined;
+  const value = Date.parse(finishedAt) - Date.parse(startedAt);
+  return Number.isFinite(value) && value >= 0 ? value : undefined;
+}
+
+async function indexRun(
+  missionId: string,
+  missionRoot: string,
+  runId: string,
+  priceTable: OperatorPriceTable | undefined,
+  team?: { mission_id: string; role: string },
+): Promise<RunRecord | undefined> {
+  const runRoot = path.join(missionRoot, "runs", runId);
+  const [resultRaw, controlRaw, recoveryRaw, verificationRaw, workflowProfile, templateRaw, experimentRaw] = await Promise.all([
+    readYamlFile(path.join(runRoot, "runtime-result.yaml")),
+    readJsonFile(path.join(runRoot, "runtime-control.json")),
+    readJsonFile(path.join(runRoot, "runtime-recovery.json")),
+    readYamlFile(path.join(runRoot, "verification.yaml")),
+    readMissionWorkflow(path.join(missionRoot, "mission.yaml")),
+    readJsonFile(path.join(runRoot, "session-template.json")),
+    readJsonFile(path.join(runRoot, "experiment.json")),
+  ]);
+  let result: RuntimeResultDocument | undefined;
+  let control: RuntimeControl | undefined;
+  let recovery: { source_run_id: string } | undefined;
+  let verification: VerificationResultDocument | undefined;
+  try { if (resultRaw !== undefined) result = validateRuntimeResult(resultRaw); } catch { /* partial artifact */ }
+  try { if (controlRaw !== undefined) control = RuntimeControlSchema.parse(controlRaw); } catch { /* partial artifact */ }
+  try { if (recoveryRaw !== undefined) recovery = RuntimeRecoveryRecordSchema.parse(recoveryRaw); } catch { /* partial artifact */ }
+  try { if (verificationRaw !== undefined) verification = validateVerificationResult(verificationRaw); } catch { /* partial artifact */ }
+  const templateRecord = templateRaw !== null && typeof templateRaw === "object" ? templateRaw as Record<string, unknown> : undefined;
+  const experimentRecord = experimentRaw !== null && typeof experimentRaw === "object" ? experimentRaw as Record<string, unknown> : undefined;
+  const experimentId = optionalString(experimentRecord?.id);
+  const experimentArm = optionalString(experimentRecord?.arm);
+  const experimentSplit = optionalString(experimentRecord?.split);
+  const experiment = experimentId !== undefined && experimentArm !== undefined && experimentSplit !== undefined
+    ? { id: experimentId, arm: experimentArm, split: experimentSplit }
+    : undefined;
+  if (!result && !control) return undefined;
+
+  const usage = usageOf(result, control);
+  const startedAt = result?.started_at ?? control?.started_at;
+  const finishedAt = result?.finished_at;
+  const runtime = result?.runtime ?? control?.runtime;
+  const cost = optionalNumber(result?.cost_usd ?? usage?.cost_usd);
+  const costBasis = result?.cost_basis ?? usage?.cost_basis;
+  // A Command Code run consults its native stream even when its result already
+  // carries a price: the stream is where token totals and the model come from,
+  // and where an unpriced run's cost gap gets explained (never guessed).
+  const native = runtime === "command-code" ? await readNativeCostFacts(runRoot) : undefined;
+  const resolvedCost = resolveRunCost({ runtime, resultCostUsd: cost, resultCostBasis: costBasis, native, priceTable });
+  const tokenTotals = tokenTotalsFromUsage(native?.usage) ?? tokenTotalsFromUsage(usage);
+  return {
+    mission_id: result?.mission_id ?? control?.mission_id ?? missionId,
+    run_id: runId,
+    runtime,
+    provider: result?.provider ?? usage?.provider ?? control?.usage?.provider,
+    model: result?.model ?? usage?.model ?? control?.usage?.model ?? native?.model,
+    workflow_profile: workflowProfile,
+    template_id: optionalString(templateRecord?.template_id),
+    tier: optionalString(templateRecord?.tier),
+    status: result?.status ?? control?.status,
+    stop_code: control?.stop_code,
+    stop_reason: control?.stop_reason,
+    started_at: startedAt,
+    finished_at: finishedAt,
+    duration_ms: duration(startedAt, finishedAt),
+    turns: control?.turns,
+    denials: control?.denials,
+    input_tokens: optionalNumber(usage?.input_tokens),
+    output_tokens: optionalNumber(usage?.output_tokens),
+    cache_read_tokens: optionalNumber(usage?.cache_read_tokens),
+    cache_write_tokens: optionalNumber(usage?.cache_write_tokens),
+    ...(tokenTotals !== undefined ? { token_totals: tokenTotals } : {}),
+    cost_usd: resolvedCost.cost_usd,
+    cost_basis: costBasis,
+    ...(resolvedCost.cost_source !== undefined ? { cost_source: resolvedCost.cost_source } : {}),
+    ...(resolvedCost.cost_unknown_reason !== undefined ? { cost_unknown_reason: resolvedCost.cost_unknown_reason } : {}),
+    resumed_from: recovery?.source_run_id,
+    verification_status: verification?.status,
+    peak_memory_bytes: control?.peak_memory_bytes,
+    ...(team !== undefined ? { team } : {}),
+    ...(experiment !== undefined ? { experiment } : {}),
+  };
+}
+
+async function readTeamState(filePath: string): Promise<CanonicalTeamState | undefined> {
+  const raw = await readJsonFile(filePath);
+  if (raw === undefined) return undefined;
+  try { return CanonicalTeamStateSchema.parse(raw); } catch { return undefined; }
+}
+
+/**
+ * Index the worker runs a team parent recorded under its `team/artifacts/`
+ * scope. Role and team identity come from the parent's canonical
+ * `team-state.json`; each worker's own canonical run lives one `.harness` tree
+ * deeper than the mission that owns the team.
+ */
+async function indexTeamRuns(missionId: string, missionRoot: string, priceTable: OperatorPriceTable | undefined): Promise<RunRecord[]> {
+  const teamRoot = path.join(missionRoot, "team");
+  let parents: Dirent[] = [];
+  try { parents = await readdir(path.join(teamRoot, "artifacts"), { withFileTypes: true }); } catch { return []; }
+  const records: RunRecord[] = [];
+  for (const parent of parents.filter(entry => entry.isDirectory())) {
+    const state = await readTeamState(path.join(missionRoot, "runs", parent.name, "team-state.json"));
+    if (!state || state.mission_id !== missionId) continue;
+    for (const worker of state.workers) {
+      const workerRoot = path.resolve(teamRoot, worker.artifact_scope);
+      const relative = path.relative(teamRoot, workerRoot);
+      if (relative.length === 0 || relative.startsWith("..") || path.isAbsolute(relative)) continue;
+      const workerMissionId = worker.mission_id ?? missionId;
+      const record = await indexRun(
+        workerMissionId,
+        path.join(workerRoot, ".harness", "missions", workerMissionId),
+        worker.run_id,
+        priceTable,
+        { mission_id: missionId, role: worker.role },
+      );
+      if (record) records.push(record);
+    }
+  }
+  return records;
+}
+
+export async function indexRuns(root: string, options: { missionId?: string } = {}): Promise<RunRecord[]> {
+  const missionsRoot = path.join(root, ".harness", "missions");
+  let missions;
+  try { missions = await readdir(missionsRoot, { withFileTypes: true }); } catch { return []; }
+  const selected = missions.filter(entry => entry.isDirectory() && (options.missionId === undefined || entry.name === options.missionId));
+  // The operator price table is loaded once per index pass; a missing or
+  // malformed table prices nothing.
+  const priceTable = await loadOperatorPriceTable(root);
+  // A run is identified by (mission, run id). A team worker run is also
+  // reachable through the parent's team-state pointer, so it must not be
+  // counted twice: the team-recorded view (which carries the role) wins.
+  const records = new Map<string, RunRecord>();
+  const keyOf = (record: RunRecord): string => `${record.mission_id}\u0000${record.run_id}`;
+  for (const mission of selected) {
+    const missionRoot = path.join(missionsRoot, mission.name);
+    let runs: Dirent[] = [];
+    try { runs = await readdir(path.join(missionRoot, "runs"), { withFileTypes: true }); } catch { runs = []; }
+    for (const run of runs.filter(entry => entry.isDirectory())) {
+      const record = await indexRun(mission.name, missionRoot, run.name, priceTable);
+      if (record) records.set(keyOf(record), record);
+    }
+  }
+  // Second pass so the team-recorded view of a shared run always wins,
+  // independent of the order missions are read.
+  for (const mission of selected) {
+    for (const record of await indexTeamRuns(mission.name, path.join(missionsRoot, mission.name), priceTable)) {
+      records.set(keyOf(record), record);
+    }
+  }
+  return [...records.values()];
+}
+
+export type RunGroupDimension = "runtime" | "model" | "workflow_profile" | "stop_code" | "template" | "tier";
+
+/** The `groupBy` "template" dimension reads the run record's `template_id`. */
+function groupKeyFor(record: RunRecord, groupBy: RunGroupDimension): string | undefined {
+  return groupBy === "template" ? record.template_id : record[groupBy];
+}
+
+export function summarizeRuns(records: RunRecord[], groupBy: RunGroupDimension): RunGroupSummary[] {
+  const groups = new Map<string | undefined, RunRecord[]>();
+  for (const record of records) {
+    const key = groupKeyFor(record, groupBy);
+    const group = groups.get(key) ?? [];
+    group.push(record);
+    groups.set(key, group);
+  }
+  return [...groups.entries()].map(([key, runs]) => {
+    const costs = runs.map(run => run.cost_usd).filter(isFiniteNonNegative);
+    const durations = runs.map(run => run.duration_ms).filter(isFiniteNonNegative);
+    const cacheRuns = runs.filter(run => [run.input_tokens, run.cache_read_tokens, run.cache_write_tokens].every(isFiniteNonNegative));
+    const input = cacheRuns.reduce((sum, run) => sum + run.input_tokens!, 0);
+    const cacheRead = cacheRuns.reduce((sum, run) => sum + run.cache_read_tokens!, 0);
+    const cacheWrite = cacheRuns.reduce((sum, run) => sum + run.cache_write_tokens!, 0);
+    const cacheTotal = input + cacheRead + cacheWrite;
+    return {
+      key, runs: runs.length, passed: runs.filter(run => run.status === "passed").length,
+      success_rate: runs.filter(run => run.status === "passed").length / runs.length,
+      known_cost_runs: costs.length,
+      total_cost_usd: costs.length ? costs.reduce((sum, cost) => sum + cost, 0) : undefined,
+      mean_cost_usd: costs.length ? costs.reduce((sum, cost) => sum + cost, 0) / costs.length : undefined,
+      mean_duration_ms: durations.length ? durations.reduce((sum, value) => sum + value, 0) / durations.length : undefined,
+      cache_read_share: cacheRuns.length && cacheTotal > 0 ? cacheRead / cacheTotal : cacheRuns.length ? 0 : undefined,
+    };
+  });
+}
+
+export function paretoFrontier(summaries: RunGroupSummary[]): RunGroupSummary[] {
+  return summaries.filter(candidate => {
+    const candidateCost = candidate.mean_cost_usd;
+    if (candidateCost === undefined) return false;
+    return !summaries.some(other =>
+      other !== candidate && other.mean_cost_usd !== undefined &&
+      other.success_rate >= candidate.success_rate && other.mean_cost_usd <= candidateCost &&
+      (other.success_rate > candidate.success_rate || other.mean_cost_usd < candidateCost)
+    );
+  });
+}
diff --git a/src/harness/experiment.ts b/src/harness/experiment.ts
new file mode 100644
index 0000000..c56f4e9
--- /dev/null
+++ b/src/harness/experiment.ts
@@ -0,0 +1,639 @@
+/**
+ * Matched-budget experiments over a seeded search/held-out task split.
+ *
+ * An experiment names a set of tasks (each carrying executable checks), splits
+ * them deterministically into a `search` and a `held_out` partition, and runs
+ * two or more arms (a session template plus runtime-config overrides) over the
+ * same tasks at a matched budget. Gains measured only on `search` tasks are the
+ * classic harness-evolution trap, so the held-out partition is not optional.
+ *
+ * Every function here is pure except the injected `runner` and the persistence
+ * in `runExperiment`, so the whole lifecycle is drivable from a fake runner and
+ * no test ever starts a model runtime.
+ */
+import path from "node:path";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import { parse as parseYaml } from "yaml";
+import { harnessDir, missionDir } from "./paths.js";
+import { validateMission } from "../schema/mission.js";
+import {
+  validateExperiment,
+  type ExperimentArm,
+  type ExperimentDocument,
+} from "../schema/experiment.js";
+import {
+  MIN_ARM_RUNS,
+  attemptsToMatch,
+  bestOfN,
+  compareArms,
+  summarizeArm,
+  type ArmComparison,
+  type ArmSummary,
+} from "./run-comparison.js";
+import type { RunRecord } from "./experience-store.js";
+
+export type ExperimentSplit = "search" | "held_out";
+
+/** The deterministic partition of an experiment's tasks. */
+export interface ExperimentSplitResult {
+  /** The seed the split was drawn from; undefined for an explicit held-out list. */
+  seed: number | undefined;
+  search: string[];
+  held_out: string[];
+}
+
+/** One planned run: a task under an arm for an attempt, tagged with its split. */
+export interface ExperimentPlanEntry {
+  task: string;
+  arm: string;
+  attempt: number;
+  split: ExperimentSplit;
+}
+
+/** What the injected runner is asked to execute. */
+export interface ExperimentRunRequest {
+  experiment_id: string;
+  task: string;
+  arm: ExperimentArm;
+  attempt: number;
+  split: ExperimentSplit;
+}
+
+/** The settled record of one run, as the injected runner reports it. */
+export interface ExperimentRunResult {
+  run_id?: string;
+  mission_id?: string;
+  runtime?: string;
+  status?: string;
+  stop_code?: string;
+  denials?: number;
+  /** Guard classes of the run's denied calls, one entry per denial, when recorded. */
+  denial_classes?: string[];
+  cost_usd?: number;
+  duration_ms?: number;
+}
+
+/**
+ * Injected run executor. Mirrors the per-runtime `runtimeRunner` seam in
+ * `harness/run-all.ts`: `runExperiment` owns the plan, the budget, and the
+ * persistence, and the runner owns the actual execution. Tests supply a fake.
+ */
+export type ExperimentRunner = (request: ExperimentRunRequest) => Promise<ExperimentRunResult>;
+
+/** A persisted run row: the plan entry plus the settled result (or a skip). */
+export interface ExperimentRunRecord {
+  experiment_id: string;
+  task: string;
+  arm: string;
+  attempt: number;
+  split: ExperimentSplit;
+  /** True when a budget line was reached before this entry could run. */
+  skipped: boolean;
+  skip_reason?: string;
+  run_id?: string;
+  mission_id?: string;
+  runtime?: string;
+  status?: string;
+  stop_code?: string;
+  denials?: number;
+  /** Count of denied calls by guard class, when the runtime recorded classes. */
+  denial_classes?: Record<string, number>;
+  /** Count of guard_tamper denials in this run, when guard classes were recorded. */
+  guard_tamper?: number;
+  /** Count of containment_escape denials in this run, when guard classes were recorded. */
+  containment_escape?: number;
+  cost_usd?: number;
+  duration_ms?: number;
+}
+
+export interface ExperimentRunOptions {
+  runner: ExperimentRunner;
+  /** Injected clock, used only to time a run the runner did not time itself. */
+  now?: () => number;
+}
+
+export interface ExperimentArmReport extends ArmSummary {
+  arm: string;
+  split: ExperimentSplit;
+  mean_denials: number | undefined;
+  guard_tamper_stops: number;
+  containment_escape_stops: number;
+}
+
+export interface ExperimentComparisonReport {
+  a: string;
+  b: string;
+  comparison: ArmComparison;
+}
+
+/** How many plain repeats or parallel attempts of the baseline reach another arm. */
+export interface ExperimentBaselineRepeat {
+  arm: string;
+  baseline_arm: string;
+  baseline_success_rate: number;
+  target_success_rate: number;
+  parallel_attempts: number;
+  best_of_n: number;
+  attempts_to_match: number | undefined;
+}
+
+export interface ExperimentSplitReport {
+  split: ExperimentSplit;
+  task_count: number;
+  arms: ExperimentArmReport[];
+  comparisons: ExperimentComparisonReport[];
+  baseline_repeats: ExperimentBaselineRepeat[];
+}
+
+export interface ExperimentReport {
+  experiment_id: string;
+  title: string;
+  seed: number | undefined;
+  baseline: string;
+  split_sizes: { search: number; held_out: number };
+  splits: ExperimentSplitReport[];
+}
+
+export interface ExperimentRunOutcome {
+  experiment_id: string;
+  seed: number | undefined;
+  split: ExperimentSplitResult;
+  plan: ExperimentPlanEntry[];
+  runs: ExperimentRunRecord[];
+  report: ExperimentReport;
+  executed: number;
+  skipped: number;
+  stopped: boolean;
+  stop_reason?: "max_runs" | "max_total_cost_usd";
+  plan_path: string;
+  runs_path: string;
+  report_path: string;
+  report_markdown_path: string;
+}
+
+function experimentsDir(root: string): string {
+  return path.join(harnessDir(root), "experiments");
+}
+
+/** `.harness/experiments/<id>.yaml` — the spec file. */
+export function experimentSpecPath(root: string, id: string): string {
+  return path.join(experimentsDir(root), `${id}.yaml`);
+}
+
+/** `.harness/experiments/<id>/` — the plan, runs, and reports. */
+export function experimentArtifactsDir(root: string, id: string): string {
+  return path.join(experimentsDir(root), id);
+}
+
+function isSafeExperimentId(id: string): boolean {
+  return typeof id === "string" && id !== "." && id !== ".." && !id.includes("/") && !id.includes("\\")
+    && /^[a-zA-Z0-9][a-zA-Z0-9._-]*$/.test(id);
+}
+
+/**
+ * The seeded PRNG the split draws from. Small, fast, and — critically —
+ * reproducible across machines, so a seed always names the same partition.
+ */
+export function mulberry32(seed: number): () => number {
+  let state = seed >>> 0;
+  return () => {
+    state = (state + 0x6d2b79f5) | 0;
+    let t = Math.imul(state ^ (state >>> 15), 1 | state);
+    t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
+    return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
+  };
+}
+
+/**
+ * Partition `spec.tasks` into `search` and `held_out`. For a seeded split the
+ * membership is a deterministic function of the seed and fraction; for an
+ * explicit split it is exactly the listed tasks. The original task order is
+ * preserved inside each partition.
+ */
+export function splitTasks(spec: ExperimentDocument): ExperimentSplitResult {
+  const tasks = spec.tasks;
+  if ("held_out" in spec.split) {
+    const heldOutIds = new Set(spec.split.held_out);
+    for (const task of spec.split.held_out) {
+      if (!tasks.includes(task)) {
+        throw new Error(`split.held_out task "${task}" is not in tasks`);
+      }
+    }
+    return {
+      seed: undefined,
+      search: tasks.filter((task) => !heldOutIds.has(task)),
+      held_out: tasks.filter((task) => heldOutIds.has(task)),
+    };
+  }
+
+  const { seed, held_out_fraction } = spec.split;
+  const heldOutCount = Math.min(
+    tasks.length,
+    Math.max(tasks.length > 1 ? 1 : 0, Math.round(held_out_fraction * tasks.length)),
+  );
+  const shuffled = [...tasks];
+  const random = mulberry32(seed);
+  for (let i = shuffled.length - 1; i > 0; i -= 1) {
+    const j = Math.floor(random() * (i + 1));
+    [shuffled[i], shuffled[j]] = [shuffled[j], shuffled[i]];
+  }
+  const heldOutIds = new Set(shuffled.slice(0, heldOutCount));
+  return {
+    seed,
+    search: tasks.filter((task) => !heldOutIds.has(task)),
+    held_out: tasks.filter((task) => heldOutIds.has(task)),
+  };
+}
+
+/**
+ * The ordered run plan. Arms are interleaved at every attempt level, so a
+ * budget stop trims each arm by the same amount and can never favour one.
+ * `search` tasks precede `held_out` tasks: hold out evaluation until the
+ * search partition is exhausted.
+ */
+export function planExperiment(spec: ExperimentDocument): ExperimentPlanEntry[] {
+  const split = splitTasks(spec);
+  const ordered: Array<{ task: string; split: ExperimentSplit }> = [
+    ...split.search.map((task) => ({ task, split: "search" as const })),
+    ...split.held_out.map((task) => ({ task, split: "held_out" as const })),
+  ];
+  const maxAttempts = Math.max(...spec.arms.map((arm) => arm.attempts_per_task));
+  const entries: ExperimentPlanEntry[] = [];
+  for (const { task, split: taskSplit } of ordered) {
+    for (let attempt = 1; attempt <= maxAttempts; attempt += 1) {
+      for (const arm of spec.arms) {
+        if (attempt > arm.attempts_per_task) continue;
+        entries.push({ task, arm: arm.id, attempt, split: taskSplit });
+      }
+    }
+  }
+  return entries;
+}
+
+/**
+ * Read and validate `.harness/experiments/<id>.yaml`. Every declared task must
+ * exist under `.harness/missions/` and declare `verification.required_checks`,
+ * because a task without executable checks cannot be scored.
+ */
+export async function loadExperiment(root: string, id: string): Promise<ExperimentDocument> {
+  if (!isSafeExperimentId(id)) {
+    throw new Error(`Invalid or unsafe experiment id: "${id}"`);
+  }
+  const filePath = experimentSpecPath(root, id);
+  let parsed: unknown;
+  try {
+    parsed = parseYaml(await readFile(filePath, "utf8"));
+  } catch (err) {
+    throw new Error(`Experiment not found: "${id}" (${(err as Error).message})`);
+  }
+  const spec = validateExperiment(parsed);
+  if (spec.id !== id) {
+    throw new Error(`Experiment id "${spec.id}" does not match file name "${id}.yaml"`);
+  }
+  for (const task of spec.tasks) {
+    const missionPath = path.join(missionDir(root, task), "mission.yaml");
+    let missionRaw: unknown;
+    try {
+      missionRaw = parseYaml(await readFile(missionPath, "utf8"));
+    } catch {
+      throw new Error(`Experiment task "${task}" has no mission file at ${missionPath}`);
+    }
+    let mission;
+    try {
+      mission = validateMission(missionRaw);
+    } catch (err) {
+      throw new Error(`Experiment task "${task}" mission is invalid: ${(err as Error).message}`);
+    }
+    if (mission.verification.required_checks.length === 0) {
+      throw new Error(`Experiment task "${task}" must declare verification.required_checks`);
+    }
+  }
+  return spec;
+}
+
+/** Read the persisted run rows for an experiment; an absent file is an empty list. */
+export async function loadExperimentRuns(root: string, id: string): Promise<ExperimentRunRecord[]> {
+  let raw: string;
+  try {
+    raw = await readFile(path.join(experimentArtifactsDir(root, id), "runs.ndjson"), "utf8");
+  } catch {
+    return [];
+  }
+  const records: ExperimentRunRecord[] = [];
+  for (const line of raw.split(/\r?\n/)) {
+    const trimmed = line.trim();
+    if (trimmed === "") continue;
+    try {
+      records.push(JSON.parse(trimmed) as ExperimentRunRecord);
+    } catch {
+      // A truncated or corrupt row is skipped rather than poisoning the report.
+    }
+  }
+  return records;
+}
+
+function classCounts(classes: readonly string[] | undefined): Record<string, number> | undefined {
+  if (classes === undefined) return undefined;
+  const counts: Record<string, number> = {};
+  for (const name of classes) counts[name] = (counts[name] ?? 0) + 1;
+  return counts;
+}
+
+const isKnownCost = (value: unknown): value is number =>
+  typeof value === "number" && Number.isFinite(value) && value >= 0;
+
+/**
+ * Run every plan entry through the injected runner, stop at the first budget
+ * line, and persist the plan, the run rows, and the report under
+ * `.harness/experiments/<id>/`. Unknown cost never counts against the cost
+ * budget, so an unpriced arm cannot silently spend past the cap or look free.
+ */
+export async function runExperiment(
+  root: string,
+  spec: ExperimentDocument,
+  options: ExperimentRunOptions,
+): Promise<ExperimentRunOutcome> {
+  const now = options.now ?? (() => Date.now());
+  const artifactsDir = experimentArtifactsDir(root, spec.id);
+  await mkdir(artifactsDir, { recursive: true });
+
+  const split = splitTasks(spec);
+  const plan = planExperiment(spec);
+  const budget = spec.budget;
+  const records: ExperimentRunRecord[] = [];
+  let executed = 0;
+  let knownCost = 0;
+  let stopped = false;
+  let stopReason: "max_runs" | "max_total_cost_usd" | undefined;
+
+  const budgetHit = (): boolean => {
+    if (budget.max_runs !== undefined && executed >= budget.max_runs) {
+      stopReason = "max_runs";
+      return true;
+    }
+    if (budget.max_total_cost_usd !== undefined && knownCost >= budget.max_total_cost_usd) {
+      stopReason = "max_total_cost_usd";
+      return true;
+    }
+    return false;
+  };
+
+  for (const entry of plan) {
+    if (stopped || budgetHit()) {
+      stopped = true;
+      records.push({ experiment_id: spec.id, ...entry, skipped: true, skip_reason: "budget" });
+      continue;
+    }
+    const arm = spec.arms.find((candidate) => candidate.id === entry.arm);
+    if (!arm) throw new Error(`Plan references an unknown arm: ${entry.arm}`);
+
+    const startedAt = now();
+    const result = await options.runner({
+      experiment_id: spec.id,
+      task: entry.task,
+      arm,
+      attempt: entry.attempt,
+      split: entry.split,
+    });
+    const elapsed = now() - startedAt;
+    executed += 1;
+    if (isKnownCost(result.cost_usd)) knownCost += result.cost_usd;
+
+    const classes = classCounts(result.denial_classes);
+    const durationMs = result.duration_ms ?? (Number.isFinite(elapsed) && elapsed >= 0 ? elapsed : undefined);
+    records.push({
+      experiment_id: spec.id,
+      ...entry,
+      skipped: false,
+      ...(result.run_id !== undefined ? { run_id: result.run_id } : {}),
+      ...(result.mission_id !== undefined ? { mission_id: result.mission_id } : {}),
+      ...(result.runtime !== undefined ? { runtime: result.runtime } : {}),
+      ...(result.status !== undefined ? { status: result.status } : {}),
+      ...(result.stop_code !== undefined ? { stop_code: result.stop_code } : {}),
+      ...(result.denials !== undefined ? { denials: result.denials } : {}),
+      ...(classes !== undefined ? { denial_classes: classes } : {}),
+      ...(classes !== undefined ? { guard_tamper: classes.guard_tamper ?? 0 } : {}),
+      ...(classes !== undefined ? { containment_escape: classes.containment_escape ?? 0 } : {}),
+      ...(isKnownCost(result.cost_usd) ? { cost_usd: result.cost_usd } : {}),
+      ...(durationMs !== undefined ? { duration_ms: durationMs } : {}),
+    });
+
+    if (result.run_id !== undefined && result.run_id !== "") {
+      await tagRun(root, entry.task, result.run_id, { id: spec.id, arm: entry.arm, split: entry.split });
+    }
+  }
+
+  const report = summarizeExperiment(records, spec);
+  const planPath = path.join(artifactsDir, "plan.json");
+  const runsPath = path.join(artifactsDir, "runs.ndjson");
+  const reportPath = path.join(artifactsDir, "report.json");
+  const reportMarkdownPath = path.join(artifactsDir, "report.md");
+
+  await writeFile(
+    planPath,
+    JSON.stringify({ experiment_id: spec.id, seed: split.seed, search: split.search, held_out: split.held_out, entries: plan }, null, 2) + "\n",
+    "utf8",
+  );
+  await writeFile(runsPath, records.map((record) => JSON.stringify(record)).join("\n") + (records.length ? "\n" : ""), "utf8");
+  await writeFile(reportPath, JSON.stringify(report, null, 2) + "\n", "utf8");
+  await writeFile(reportMarkdownPath, renderExperimentMarkdown(report), "utf8");
+
+  const skipped = records.filter((record) => record.skipped).length;
+  return {
+    experiment_id: spec.id,
+    seed: split.seed,
+    split,
+    plan,
+    runs: records,
+    report,
+    executed,
+    skipped,
+    stopped,
+    ...(stopReason !== undefined ? { stop_reason: stopReason } : {}),
+    plan_path: planPath,
+    runs_path: runsPath,
+    report_path: reportPath,
+    report_markdown_path: reportMarkdownPath,
+  };
+}
+
+/**
+ * Tag a run directory with its experiment provenance so the experience store
+ * can group it, written the same way session-template metadata is written.
+ */
+async function tagRun(
+  root: string,
+  task: string,
+  runId: string,
+  tag: { id: string; arm: string; split: ExperimentSplit },
+): Promise<void> {
+  const runDir = path.join(missionDir(root, task), "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  await writeFile(path.join(runDir, "experiment.json"), JSON.stringify({ id: tag.id, arm: tag.arm, split: tag.split }, null, 2) + "\n", "utf8");
+}
+
+function toRunRecord(record: ExperimentRunRecord): RunRecord {
+  return {
+    mission_id: record.mission_id ?? record.task,
+    run_id: record.run_id ?? `${record.task}:${record.arm}:${record.attempt}`,
+    ...(record.status !== undefined ? { status: record.status } : {}),
+    ...(record.stop_code !== undefined ? { stop_code: record.stop_code } : {}),
+    ...(record.denials !== undefined ? { denials: record.denials } : {}),
+    ...(record.cost_usd !== undefined ? { cost_usd: record.cost_usd } : {}),
+    ...(record.duration_ms !== undefined ? { duration_ms: record.duration_ms } : {}),
+  };
+}
+
+function summarizeArmRecords(
+  arm: string,
+  split: ExperimentSplit,
+  records: readonly ExperimentRunRecord[],
+): ExperimentArmReport {
+  const summary = summarizeArm(records.map(toRunRecord));
+  const denials = records
+    .map((record) => record.denials)
+    .filter((value): value is number => typeof value === "number" && Number.isFinite(value));
+  return {
+    ...summary,
+    arm,
+    split,
+    mean_denials: denials.length ? denials.reduce((sum, value) => sum + value, 0) / denials.length : undefined,
+    guard_tamper_stops: records.reduce((sum, record) => sum + (record.guard_tamper ?? 0), 0),
+    containment_escape_stops: records.reduce((sum, record) => sum + (record.containment_escape ?? 0), 0),
+  };
+}
+
+/**
+ * Group the run rows by split and arm, compare every arm pair within each split
+ * (the same `compareArms` the observatory uses), and add the baseline arm's
+ * best-of-n and attempts-to-match lines. Skipped rows carry no evidence and are
+ * excluded; unknown cost stays unknown.
+ */
+export function summarizeExperiment(
+  runs: readonly ExperimentRunRecord[],
+  spec: ExperimentDocument,
+): ExperimentReport {
+  const split = splitTasks(spec);
+  const analyzed = runs.filter((record) => !record.skipped);
+  const splitNames: ExperimentSplit[] = ["search", "held_out"];
+
+  const splits: ExperimentSplitReport[] = splitNames.map((splitName) => {
+    const inSplit = analyzed.filter((record) => record.split === splitName);
+    const arms = spec.arms.map((arm) =>
+      summarizeArmRecords(arm.id, splitName, inSplit.filter((record) => record.arm === arm.id)),
+    );
+    const comparisons: ExperimentComparisonReport[] = [];
+    for (let i = 0; i < spec.arms.length; i += 1) {
+      for (let j = i + 1; j < spec.arms.length; j += 1) {
+        const a = spec.arms[i].id;
+        const b = spec.arms[j].id;
+        comparisons.push({
+          a,
+          b,
+          comparison: compareArms(
+            inSplit.filter((record) => record.arm === a).map(toRunRecord),
+            inSplit.filter((record) => record.arm === b).map(toRunRecord),
+          ),
+        });
+      }
+    }
+    const baselineArm = arms.find((arm) => arm.arm === spec.baseline.arm);
+    const baselineRate = baselineArm?.success_rate ?? 0;
+    const baselineRepeats: ExperimentBaselineRepeat[] = arms
+      .filter((arm) => arm.arm !== spec.baseline.arm)
+      .map((arm) => ({
+        arm: arm.arm,
+        baseline_arm: spec.baseline.arm,
+        baseline_success_rate: baselineRate,
+        target_success_rate: arm.success_rate,
+        parallel_attempts: spec.baseline.parallel_attempts,
+        best_of_n: bestOfN(baselineRate, spec.baseline.parallel_attempts),
+        attempts_to_match: attemptsToMatch(baselineRate, arm.success_rate),
+      }));
+    return {
+      split: splitName,
+      task_count: splitName === "search" ? split.search.length : split.held_out.length,
+      arms,
+      comparisons,
+      baseline_repeats: baselineRepeats,
+    };
+  });
+
+  return {
+    experiment_id: spec.id,
+    title: spec.title,
+    seed: split.seed,
+    baseline: spec.baseline.arm,
+    split_sizes: { search: split.search.length, held_out: split.held_out.length },
+    splits,
+  };
+}
+
+const rate = (value: number): string => `${(value * 100).toFixed(1)}%`;
+const interval = (arm: { interval: { low: number; high: number } }): string =>
+  `${rate(arm.interval.low)}-${rate(arm.interval.high)}`;
+
+/** One-sentence verdict for an arm pair, matching the observatory's wording. */
+export function experimentVerdictLine(comparison: ArmComparison, aLabel: string, bLabel: string): string {
+  if (comparison.verdict === "insufficient_data") {
+    return `insufficient_data — ${aLabel} has ${comparison.a.runs} run(s) and ${bLabel} has ${comparison.b.runs}; at least ${MIN_ARM_RUNS} per arm are needed before any difference is reportable.`;
+  }
+  if (comparison.verdict === "no_clear_difference") {
+    return `no_clear_difference — the 95% Wilson intervals overlap (${interval(comparison.a)} vs ${interval(comparison.b)}), so ${rate(comparison.a.success_rate)} vs ${rate(comparison.b.success_rate)} is within noise.`;
+  }
+  const winner = comparison.verdict === "a_better" ? aLabel : bLabel;
+  const loser = comparison.verdict === "a_better" ? bLabel : aLabel;
+  const winnerArm = comparison.verdict === "a_better" ? comparison.a : comparison.b;
+  const loserArm = comparison.verdict === "a_better" ? comparison.b : comparison.a;
+  return `${comparison.verdict} — ${winner} beats ${loser} on success rate (${rate(winnerArm.success_rate)} vs ${rate(loserArm.success_rate)}) with non-overlapping 95% Wilson intervals (${interval(winnerArm)} vs ${interval(loserArm)}).`;
+}
+
+/** The plain-repeats line: what repeating the baseline buys against another arm. */
+export function experimentRepeatsLine(repeat: ExperimentBaselineRepeat): string {
+  const { baseline_arm: baseline, arm, baseline_success_rate: baselineRate, target_success_rate: targetRate } = repeat;
+  if (repeat.attempts_to_match === undefined) {
+    return `none of ${baseline}'s runs passed, so no number of plain repeats reaches ${arm}'s ${rate(targetRate)}.`;
+  }
+  if (targetRate <= baselineRate) {
+    return `${arm} already passes at ${rate(targetRate)}, so repeating ${baseline} at ${rate(baselineRate)} is not needed.`;
+  }
+  return `${repeat.attempts_to_match} plain repeat(s) of ${baseline} at ${rate(baselineRate)} would match ${arm}'s ${rate(targetRate)}; ${repeat.parallel_attempts} parallel attempt(s) of ${baseline} reach ${rate(repeat.best_of_n)}.`;
+}
+
+const orUnknown = (value: number | undefined, format: (n: number) => string): string =>
+  value === undefined ? "unknown" : format(value);
+
+/** Deterministic markdown report, persisted as `report.md`. */
+export function renderExperimentMarkdown(report: ExperimentReport): string {
+  const lines: string[] = [];
+  lines.push(`# Experiment: ${report.title}`);
+  lines.push("");
+  lines.push(`- Id: \`${report.experiment_id}\``);
+  lines.push(`- Seed: ${report.seed === undefined ? "explicit held-out split" : report.seed}`);
+  lines.push(`- Split sizes: search ${report.split_sizes.search}, held_out ${report.split_sizes.held_out}`);
+  lines.push(`- Baseline arm: \`${report.baseline}\``);
+  for (const split of report.splits) {
+    lines.push("");
+    lines.push(`## ${split.split} (${split.task_count} task(s))`);
+    lines.push("");
+    lines.push("| Arm | Runs | Passed | Success rate | Wilson 95% | Mean denials | guard_tamper | containment_escape | Mean cost |");
+    lines.push("|---|---|---|---|---|---|---|---|---|");
+    for (const arm of split.arms) {
+      lines.push(
+        `| \`${arm.arm}\` | ${arm.runs} | ${arm.passed} | ${rate(arm.success_rate)} | ${interval(arm)} | ` +
+        `${orUnknown(arm.mean_denials, (value) => value.toFixed(2))} | ${arm.guard_tamper_stops} | ${arm.containment_escape_stops} | ` +
+        `${orUnknown(arm.mean_cost_usd, (value) => `$${value.toFixed(4)}`)} |`,
+      );
+    }
+    for (const comparison of split.comparisons) {
+      lines.push("");
+      lines.push(`Verdict (\`${comparison.a}\` vs \`${comparison.b}\`): ${experimentVerdictLine(comparison.comparison, comparison.a, comparison.b)}`);
+    }
+    for (const repeat of split.baseline_repeats) {
+      lines.push("");
+      lines.push(`Plain repeats (\`${repeat.baseline_arm}\` vs \`${repeat.arm}\`): ${experimentRepeatsLine(repeat)}`);
+    }
+  }
+  lines.push("");
+  return lines.join("\n");
+}
diff --git a/src/harness/fleet-policy.ts b/src/harness/fleet-policy.ts
new file mode 100644
index 0000000..6f3c908
--- /dev/null
+++ b/src/harness/fleet-policy.ts
@@ -0,0 +1,65 @@
+import { readFile } from "node:fs/promises";
+import path from "node:path";
+import { parse } from "yaml";
+import { validateProject, type FleetPolicy, type FleetRole } from "../schema/project.js";
+import { adaptersDir, projectYaml } from "./paths.js";
+import { loadMissionFile } from "./capabilities.js";
+import { fileExists } from "./mission.js";
+import { mergeRuntimeConfigOverrides } from "./runtime-config-overrides.js";
+import { sameRouteIdentifier } from "./runtime-supervision.js";
+
+export type FleetRequest = { adapter: string; model: string | undefined; role: FleetRole };
+
+/**
+ * Spend authorization: which model may run on which adapter, and in which role.
+ * Returns the refusal reason, or undefined when the run is admitted. A project
+ * without a fleet block has no policy. Identifiers are compared case-insensitively.
+ */
+export function decideFleetAdmission(fleet: FleetPolicy | undefined, request: FleetRequest): string | undefined {
+  if (!fleet) return undefined;
+  if (!request.model) return `${request.adapter} has no assigned model; the runtime would choose its own default`;
+  const model = request.model;
+  const routes = fleet.routes.filter(route => sameRouteIdentifier(route.model, model));
+  if (!routes.length) return `model ${model} is not in the project fleet`;
+  const onAdapter = routes.filter(route => sameRouteIdentifier(route.adapter, request.adapter));
+  if (!onAdapter.length) return `model ${model} is not authorized on adapter ${request.adapter}`;
+  if (!onAdapter.some(route => route.roles.includes(request.role))) return `model ${model} on ${request.adapter} is not authorized for the ${request.role} role`;
+  return undefined;
+}
+
+function text(value: unknown): string | undefined {
+  return typeof value === "string" && value.trim() ? value.trim() : undefined;
+}
+
+/** The model a run will request: CLI overrides, then the mission, then the adapter manifest. */
+async function assignedRoute(root: string, missionPath: string, runtime: string, extraOverrides?: Record<string, unknown>): Promise<{ model: string | undefined; role: FleetRole }> {
+  const overrides = mergeRuntimeConfigOverrides(await loadMissionFile(missionPath), extraOverrides);
+  const manifestPath = path.join(adaptersDir(root), `${runtime}.yaml`);
+  const manifest = await fileExists(manifestPath) ? parse(await readFile(manifestPath, "utf8")) as { config?: { default_model?: unknown; runtime_config?: { model?: unknown; role?: unknown } } } : undefined;
+  const role = text(overrides.role) ?? text(manifest?.config?.runtime_config?.role);
+  return {
+    model: text(overrides.model) ?? text(manifest?.config?.runtime_config?.model) ?? text(manifest?.config?.default_model),
+    role: role === "orchestrator" ? "orchestrator" : "worker",
+  };
+}
+
+/** The project's fleet policy, or undefined when the project declares none. */
+export async function loadFleetPolicy(root: string): Promise<FleetPolicy | undefined> {
+  const projectPath = projectYaml(root);
+  if (!(await fileExists(projectPath))) return undefined;
+  return validateProject(parse(await readFile(projectPath, "utf8"))).fleet;
+}
+
+/** The adapters the fleet authorizes at all, or undefined when it declares none. */
+export function authorizedFleetAdapters(fleet: FleetPolicy | undefined): string[] | undefined {
+  if (!fleet || fleet.routes.length === 0) return undefined;
+  return [...new Set(fleet.routes.map((route) => route.adapter))];
+}
+
+/** Refuses a run outside the project fleet before any process is spawned. `--force` does not bypass it. */
+export async function assertFleetAdmission(root: string, missionPath: string, runtime: string, extraOverrides?: Record<string, unknown>): Promise<void> {
+  const fleet = await loadFleetPolicy(root);
+  if (!fleet) return;
+  const refusal = decideFleetAdmission(fleet, { adapter: runtime, ...(await assignedRoute(root, missionPath, runtime, extraOverrides)) });
+  if (refusal) throw new Error(`Fleet policy refuses this run: ${refusal}`);
+}
diff --git a/src/harness/independent-review-execution.ts b/src/harness/independent-review-execution.ts
new file mode 100644
index 0000000..e42600a
--- /dev/null
+++ b/src/harness/independent-review-execution.ts
@@ -0,0 +1,31 @@
+import path from "node:path";
+import { realpath } from "node:fs/promises";
+import { isDeepStrictEqual } from "node:util";
+import type { MissionDocument } from "../schema/mission.js";
+import { assertWritableArtifact } from "../adapters/_artifact-context.js";
+import { loadMissionFile } from "./capabilities.js";
+
+/** Assignment/session guard, not an OS filesystem or network isolation boundary. */
+export async function assertIndependentReviewExecution(root: string, missionPath: string, mission: MissionDocument, options: {
+  canonicalRoot: string; runtime: string; model?: string; resumeSession?: string; resumeFromRun?: string;
+  extraArgs?: string[]; memoryEnabled?: boolean; extensionsEnabled?: boolean; skillsEnabled?: boolean;
+}): Promise<string | undefined> {
+  const executionRoot = await realpath(root);
+  const canonicalRoot = await realpath(options.canonicalRoot);
+  let canonical = mission;
+  if (executionRoot !== canonicalRoot) {
+    const canonicalPath = path.resolve(canonicalRoot, path.relative(root, missionPath));
+    await assertWritableArtifact(path.join(canonicalRoot, ".harness", "missions", mission.id), canonicalPath);
+    canonical = await loadMissionFile(canonicalPath);
+  }
+  const binding = canonical.independent_review;
+  if (!binding && !mission.independent_review) return undefined;
+  if (!binding || !isDeepStrictEqual(canonical, mission)) throw new Error("Independent review contract differs from its canonical mission");
+  if (executionRoot === canonicalRoot) throw new Error("Independent review requires a separate UH workspace");
+  if (options.runtime !== binding.runtime || options.model !== binding.model) throw new Error("Independent reviewer runtime/model assignment mismatch");
+  if (options.resumeSession || options.resumeFromRun) throw new Error("Independent review requires a fresh session, not a resume");
+  if (options.extraArgs?.length) throw new Error("Independent review does not accept free-form runtime arguments");
+  if (options.memoryEnabled || options.extensionsEnabled || options.skillsEnabled) throw new Error("Independent review requires shared memory, extensions, and skills disabled");
+  if (canonical.sandbox?.promotion_policy !== "human-approved") throw new Error("Independent review requires human acceptance");
+  return binding.request_sha256;
+}
diff --git a/src/harness/independent-review.ts b/src/harness/independent-review.ts
new file mode 100644
index 0000000..a873453
--- /dev/null
+++ b/src/harness/independent-review.ts
@@ -0,0 +1,301 @@
+import { createHash } from "node:crypto";
+import { createReadStream, createWriteStream } from "node:fs";
+import { mkdir, readFile, realpath, rm, lstat, writeFile } from "node:fs/promises";
+import path from "node:path";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import { Transform } from "node:stream";
+import { pipeline } from "node:stream/promises";
+import { z } from "zod";
+import { parse, stringify } from "yaml";
+import { isDeepStrictEqual } from "node:util";
+import { assertWritableArtifact } from "../adapters/_artifact-context.js";
+import { IndependentReviewAssessmentSchema, IndependentReviewBindingSchema, IndependentReviewReportSchema, IndependentReviewRequestSchema,
+  type IndependentReviewBinding, type IndependentReviewReport, type IndependentReviewRequest } from "../schema/independent-review.js";
+import { DEFAULT_PROTECTED_PATHS, RuntimeControlSchema } from "../schema/runtime-control.js";
+import { validateRuntimeResult, type VerdictValue } from "../schema/artifacts.js";
+import { loadMissionFile } from "./capabilities.js";
+import { assertSafeMissionId, isPathWithin, requireInitializedProject, requireWorkflowProfile, rejectSymlinkIfExists } from "./mission.js";
+import { proposeMission } from "./propose.js";
+import { readLatestPointer } from "./run-id.js";
+import { resolveSandboxMissionRoot } from "./sandbox.js";
+import { writeAtomicArtifact } from "./artifact-transaction.js";
+import { verifyExpectedArtifact } from "./output-verification.js";
+import { recordAcceptanceDecision } from "./decision-receipts.js";
+export interface PrepareIndependentReviewOptions {
+  id: string;
+  sources: Array<{ missionId: string; workspaceRoot?: string }>;
+  runtime: IndependentReviewBinding["runtime"];
+  model: string;
+  workflow?: string;
+}
+
+function digest(bytes: string): string {
+  return createHash("sha256").update(bytes).digest("hex");
+}
+
+function pinReportIdEnum(listSchema: unknown, ids: string[]): void {
+  const list = listSchema as { maxItems?: number; items?: { properties?: { id?: Record<string, unknown> } } } | undefined;
+  if (!list?.items?.properties) throw new Error("Unexpected generated review report schema shape");
+  list.items.properties.id = { ...list.items.properties.id, enum: ids };
+  list.maxItems = ids.length;
+}
+
+/** The report schema pinned to the exact ids this request allows; empty lists allow nothing. */
+function emittedReportSchema(request: IndependentReviewRequest): Record<string, unknown> {
+  const schema = z.toJSONSchema(IndependentReviewReportSchema) as { properties?: Record<string, unknown> };
+  const sourceItems = (schema.properties?.sources as { items?: { properties?: Record<string, unknown> } } | undefined)?.items?.properties;
+  if (!sourceItems) throw new Error("Unexpected generated review report schema shape");
+  pinReportIdEnum(sourceItems.acceptance, request.sources.flatMap(source => source.acceptance.map(item => item.id)));
+  pinReportIdEnum(sourceItems.checks, request.sources.flatMap(source => source.checks.map(item => item.id)));
+  return schema;
+}
+
+const INDEPENDENT_REVIEW_REPORT_PATH = "out/review-report.json";
+
+function isProtectedRuntimePath(target: string): boolean {
+  const normalized = path.posix.normalize(target.trim().replaceAll("\\", "/")).replace(/^\.\/+/, "");
+  return DEFAULT_PROTECTED_PATHS.some((root) => normalized === root || normalized.startsWith(`${root}/`));
+}
+
+async function readIndependentReviewReport(root: string, reportPath: string): Promise<IndependentReviewReport> {
+  if (path.isAbsolute(reportPath) || isProtectedRuntimePath(reportPath)) {
+    throw new Error(`Independent review report must target a permitted workspace output: ${reportPath}`);
+  }
+  const verification = await verifyExpectedArtifact(root, { path: reportPath, type: "json" });
+  if (verification.status !== "passed") {
+    throw new Error(`Independent review report failed verification: ${verification.notes ?? "missing or invalid report"}`);
+  }
+  return IndependentReviewReportSchema.parse(JSON.parse(await readFile(path.resolve(root, reportPath), "utf8")));
+}
+
+
+async function fileDigest(file: string): Promise<string> {
+  const hash = createHash("sha256");
+  for await (const chunk of createReadStream(file)) hash.update(chunk);
+  return hash.digest("hex");
+}
+
+
+async function snapshotFile(sourceRoot: string, original: string, destination: string): Promise<string | undefined> {
+  const candidate = path.resolve(sourceRoot, original);
+  if (!isPathWithin(candidate, sourceRoot)) throw new Error(`Review input escapes its source workspace: ${original}`);
+  let resolved: string;
+  try { resolved = await realpath(candidate); }
+  catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") return undefined; throw error; }
+  if (!isPathWithin(resolved, sourceRoot)) throw new Error(`Review input resolves outside its source workspace: ${original}`);
+  if (!(await lstat(candidate)).isFile()) return undefined;
+  const hash = createHash("sha256");
+  await pipeline(createReadStream(resolved), new Transform({
+    transform(chunk, _encoding, callback) { hash.update(chunk); callback(null, chunk); },
+  }), createWriteStream(destination, { flags: "wx" }));
+  return hash.digest("hex");
+}
+
+/** Emit a complete UH mission; preparation never starts a model or another controller. */
+export async function prepareIndependentReview(root: string, options: PrepareIndependentReviewOptions) {
+  assertSafeMissionId(options.id);
+  if (options.sources.length === 0 || new Set(options.sources.map(source => source.missionId)).size !== options.sources.length) {
+    throw new Error("Independent review requires distinct source missions");
+  }
+  for (const source of options.sources) {
+    assertSafeMissionId(source.missionId);
+    if (source.missionId === options.id) throw new Error("A mission cannot independently review itself");
+  }
+  root = await realpath(root);
+  const workflow = options.workflow ?? "research-docs";
+  await requireInitializedProject(root);
+  await requireWorkflowProfile(root, workflow);
+  const missionDir = path.join(root, ".harness", "missions", options.id);
+  await rejectSymlinkIfExists(path.join(root, ".harness"), "Harness directory");
+  await rejectSymlinkIfExists(path.dirname(missionDir), "Missions directory");
+  const requestPath = path.join(missionDir, "review-request.json");
+  const reportPath = path.join(root, INDEPENDENT_REVIEW_REPORT_PATH);
+  const requestRelative = relativeArtifactPath(root, requestPath);
+  const reportRelative = relativeArtifactPath(root, reportPath);
+  const routing = IndependentReviewBindingSchema.pick({ runtime: true, model: true })
+    .parse({ runtime: options.runtime, model: options.model });
+  // An existing packet or abandoned preparation is never silently overwritten.
+  await mkdir(missionDir);
+  try {
+    const sources: IndependentReviewRequest["sources"] = [];
+    const readFirst: string[] = [requestRelative];
+    for (const source of options.sources) {
+      const canonicalContract = path.join(root, ".harness", "missions", source.missionId, "mission.yaml");
+      await assertWritableArtifact(path.dirname(canonicalContract), canonicalContract);
+      const route = await resolveSandboxMissionRoot(root, canonicalContract, true);
+      if (route.error) throw new Error(route.error);
+      const sourceRoot = await realpath(source.workspaceRoot ?? route.effectiveRoot);
+      const inputDir = path.join(missionDir, "inputs", source.missionId);
+      await mkdir(inputDir, { recursive: true });
+      const contractSnapshot = path.join(inputDir, "contract.yaml");
+      const contractHash = await snapshotFile(root, relativeArtifactPath(root, canonicalContract), contractSnapshot);
+      if (!contractHash) throw new Error(`Source mission contract is missing: ${source.missionId}`);
+      const mission = await loadMissionFile(contractSnapshot);
+      if (mission.id !== source.missionId) throw new Error("Source mission identity mismatch");
+      const files: IndependentReviewRequest["sources"][number]["files"] = [{ kind: "contract", state: "present",
+        original_path: canonicalContract, snapshot_path: relativeArtifactPath(root, contractSnapshot), sha256: contractHash }];
+      readFirst.push(relativeArtifactPath(root, contractSnapshot));
+      for (const [index, output] of mission.expected_artifacts.entries()) {
+        const snapshot = path.join(inputDir, `${index}-${path.basename(output.path)}`);
+        const hash = await snapshotFile(sourceRoot, output.path, snapshot);
+        const verification = await verifyExpectedArtifact(hash ? root : sourceRoot,
+          hash ? { ...output, path: relativeArtifactPath(root, snapshot) } : output);
+        files.push({ kind: "output", original_path: output.path, state: hash ? "present" : "missing", verification,
+          ...(hash ? { snapshot_path: relativeArtifactPath(root, snapshot), sha256: hash } : {}) });
+        if (hash) readFirst.push(relativeArtifactPath(root, snapshot));
+      }
+      sources.push({ mission_id: source.missionId, source_root: sourceRoot, files,
+        reference_paths: mission.read_first,
+        acceptance: mission.acceptance_criteria.map(criterion => ({ id: criterion.id, description: criterion.description })),
+        checks: mission.verification.checks.map((check, index) => ({ id: `check-${index + 1}`, description: check })),
+      });
+    }
+    const request = IndependentReviewRequestSchema.parse({ schema_version: "uh.independent-review-request.v0", review_id: options.id, sources });
+    const serialized = JSON.stringify(request, null, 2) + "\n";
+    const binding = IndependentReviewBindingSchema.parse({ ...routing, request_path: requestRelative,
+      report_path: reportRelative, request_sha256: digest(serialized) });
+    await writeFile(requestPath, serialized, { flag: "wx" });
+    const schemaPath = path.join(missionDir, "review-report.schema.json");
+    await writeFile(schemaPath, JSON.stringify(emittedReportSchema(request), null, 2), { flag: "wx" });
+    readFirst.push(relativeArtifactPath(root, schemaPath));
+    const idClause = (ids: string[]) => ids.length > 0 ? ids.join(", ") : "[] exactly; add nothing";
+    const requiredIds = sources.map(source => `- ${source.mission_id}: acceptance: ${idClause(source.acceptance.map(item => item.id))}; checks: ${idClause(source.checks.map(item => item.id))}.`).join("\n");
+    const packet = await proposeMission(root, {
+      id: options.id, title: `Independent review: ${options.sources.map(source => source.missionId).join(", ")}`, workflow,
+      objective: `Independently assess the captured contracts and outputs in ${binding.request_path}. Read every captured contract and available output in full. Check claims against sources, cover exactly the ids listed below once each, and report missing or unverifiable evidence honestly. The report must contain exactly these ids per source, each exactly once:\n${requiredIds}\nAnything you verified that no listed id covers goes into observations, never into acceptance or checks. Write ${binding.report_path} conforming to the supplied JSON schema and bind it to request_sha256 ${binding.request_sha256}. Missing outputs require needs-remediation; unverified required evidence cannot receive pass. This is an advisory recommendation, not Main/owner acceptance.`,
+      readFirst, expectedOutputs: [binding.report_path], sandboxBackend: "directory", promotionPolicy: "human-approved",
+      constraints: ["Do not edit source worker outputs or captured review inputs.", "Do not delegate, spawn subagents, or reuse a worker session.",
+        "Reference paths are relative to each source_root; captured snapshots, not later source changes, define this review."],
+      runtimeConfigOverrides: { model: binding.model, ...(binding.runtime === "oh-my-pi" ? { honcho_memory: false } : {}) }, independentReview: binding,
+      completionCriteria: ["Every source has an evidence-backed recommendation; Main/owner acceptance remains required."],
+    });
+    const guardedMission = { ...packet.mission, guard: {
+      write_roots: [path.posix.dirname(binding.report_path)],
+      deny_git_mutations: true, deny_package_installs: true, deny_network_clients: true,
+    } };
+    await writeFile(packet.path, stringify(guardedMission), "utf-8");
+    return { missionPath: packet.path, requestPath, reportPath, requestSha256: binding.request_sha256 };
+  } catch (error) {
+    await rm(missionDir, { recursive: true, force: true });
+    throw error;
+  }
+}
+
+function exactIds(expected: string[], actual: string[], label: string): void {
+  if (actual.length !== expected.length || new Set(actual).size !== actual.length || actual.some(id => !expected.includes(id))) {
+    throw new Error(`Review must cover each ${label} exactly once`);
+  }
+}
+
+export function validateIndependentReviewReport(request: IndependentReviewRequest, report: IndependentReviewReport): VerdictValue {
+  exactIds(request.sources.map(source => source.mission_id), report.sources.map(source => source.mission_id), "source mission");
+  let recommendation: VerdictValue = "pass";
+  for (const source of request.sources) {
+    const reviewed = report.sources.find(item => item.mission_id === source.mission_id)!;
+    exactIds(source.acceptance.map(item => item.id), reviewed.acceptance.map(item => item.id), "acceptance criterion");
+    exactIds(source.checks.map(item => item.id), reviewed.checks.map(item => item.id), "required check");
+    const missing = source.files.some(file => file.state === "missing" || (file.kind === "output" && file.verification?.status !== "passed"));
+    const unsupported = reviewed.claims_checked.some(claim => claim.verdict !== "supported") ||
+      [...reviewed.acceptance, ...reviewed.checks].some(check => check.status !== "passed") ||
+      reviewed.findings.some(finding => finding.severity === "error");
+    if (missing && reviewed.verdict !== "needs-remediation") throw new Error("Missing or invalid review inputs require needs-remediation");
+    if (unsupported && reviewed.verdict === "pass") throw new Error("Unverified or contradicted evidence cannot receive pass");
+    if (reviewed.verdict === "needs-remediation" || (reviewed.verdict === "needs-attention" && recommendation === "pass")) recommendation = reviewed.verdict;
+  }
+  return recommendation;
+}
+
+/** Validate provenance and recommendation; never records a human approval or promotes source work. */
+export async function collectIndependentReview(root: string, missionId: string) {
+  assertSafeMissionId(missionId);
+  root = await realpath(root);
+  const missionDir = path.join(root, ".harness", "missions", missionId);
+  const missionPath = path.join(missionDir, "mission.yaml");
+  await assertWritableArtifact(missionDir, missionPath);
+  const mission = await loadMissionFile(missionPath);
+  const binding = mission.independent_review;
+  if (!binding) throw new Error("Mission is not an independent review packet");
+  const requestPath = path.resolve(root, binding.request_path);
+  await assertWritableArtifact(missionDir, requestPath);
+  const requestBytes = await readFile(requestPath, "utf8");
+  if (digest(requestBytes) !== binding.request_sha256) throw new Error("Independent review request changed after preparation");
+  const request = IndependentReviewRequestSchema.parse(JSON.parse(requestBytes));
+  if (request.review_id !== missionId) throw new Error("Independent review request identity mismatch");
+  const latest = await readLatestPointer(root, missionId);
+  if (!latest) throw new Error("Independent review has no native execution receipt");
+  const controlPath = path.join(missionDir, "runs", latest.run_id, "runtime-control.json");
+  await assertWritableArtifact(missionDir, controlPath);
+  const control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8")));
+  if (control.mission_id !== missionId || control.run_id !== latest.run_id || control.runtime !== binding.runtime ||
+      control.status !== "passed" || control.settlement_confirmed === false || control.review_request_sha256 !== binding.request_sha256) {
+    throw new Error("Independent review requires a successful native receipt bound to this request");
+  }
+  const resultPath = path.join(missionDir, "runs", latest.run_id, "runtime-result.yaml");
+  await assertWritableArtifact(missionDir, resultPath);
+  if (validateRuntimeResult(parse(await readFile(resultPath, "utf8"))).status !== "passed") {
+    throw new Error("Independent reviewer runtime did not complete successfully");
+  }
+  const route = await resolveSandboxMissionRoot(root, missionPath, true);
+  if (route.error) throw new Error(route.error);
+  if (!route.sandbox) throw new Error("Independent review requires its bound UH workspace");
+  if (!isDeepStrictEqual(await loadMissionFile(route.missionPath), mission)) throw new Error("Independent review contract changed in its workspace");
+  const workspaceRequest = path.resolve(route.effectiveRoot, binding.request_path);
+  await assertWritableArtifact(path.dirname(route.missionPath), workspaceRequest);
+  if (await fileDigest(workspaceRequest) !== binding.request_sha256) throw new Error("Independent review request changed in its workspace");
+  for (const source of request.sources) {
+    for (const file of source.files) {
+      if (file.state === "missing") continue;
+      for (const scope of new Set([root, route.effectiveRoot])) {
+        const snapshot = path.resolve(scope, file.snapshot_path!);
+        await assertWritableArtifact(path.join(scope, ".harness", "missions", missionId), snapshot);
+        if (await fileDigest(snapshot) !== file.sha256) throw new Error("Captured independent review input changed");
+      }
+    }
+  }
+  const report = await readIndependentReviewReport(route.effectiveRoot, binding.report_path);
+  if (report.request_sha256 !== binding.request_sha256) throw new Error("Review report belongs to another request");
+  let recommendation = validateIndependentReviewReport(request, report);
+  await recordAcceptanceDecision({
+    missionDir, missionId, runId: latest.run_id, consumer: "independent-review", from: recommendation,
+    state: {
+      contract: {
+        human_acceptance_required: true,
+        sources: request.sources.map((source, index) => ({
+          index, acceptance: source.acceptance, checks: source.checks,
+          inputs: source.files.map(file => ({ kind: file.kind, state: file.state })),
+        })),
+      },
+      outputs: {
+        recommendation,
+        sources: request.sources.map((source, index) => {
+          const reviewed = report.sources.find(item => item.mission_id === source.mission_id)!;
+          return {
+            index, verdict: reviewed.verdict,
+            claims: reviewed.claims_checked.map(claim => ({ verdict: claim.verdict })),
+            acceptance: reviewed.acceptance.map(check => ({ id: check.id, status: check.status })),
+            checks: reviewed.checks.map(check => ({ id: check.id, status: check.status })),
+            findings: reviewed.findings.map(finding => ({ severity: finding.severity })),
+          };
+        }),
+      },
+    },
+    prompt: "Assess consistency of the review disposition with the supplied evidence summary. Raw evidence is not included; do not infer that unreported checks or scope protections passed.",
+    apply: gate => {
+      if (gate.tamper || gate.verdict === "needs-remediation") {
+        recommendation = "needs-remediation";
+      } else if (gate.verdict === "needs-attention" && recommendation === "pass") {
+        recommendation = "needs-attention";
+      }
+      return recommendation;
+    },
+  });
+  const observations = report.sources.flatMap(source =>
+    (source.observations ?? []).map(observation => ({ source: source.mission_id, ...observation })));
+  const assessment = IndependentReviewAssessmentSchema.parse({ schema_version: "uh.independent-review-assessment.v0", review_id: missionId,
+    run_id: latest.run_id, request_sha256: binding.request_sha256, recommendation, human_acceptance_required: true,
+    ...(observations.length > 0 ? { observations } : {}) });
+  const assessmentPath = path.join(missionDir, "review-assessment.json");
+  await assertWritableArtifact(missionDir, assessmentPath);
+  await writeAtomicArtifact(assessmentPath, JSON.stringify(assessment, null, 2));
+  return assessment;
+}
diff --git a/src/harness/kill.ts b/src/harness/kill.ts
new file mode 100644
index 0000000..e75f34d
--- /dev/null
+++ b/src/harness/kill.ts
@@ -0,0 +1,806 @@
+import { execFile } from "node:child_process";
+import { readFile } from "node:fs/promises";
+import path from "node:path";
+import { promisify } from "node:util";
+import { setTimeout as delay } from "node:timers/promises";
+import { RuntimeControlSchema } from "../schema/runtime-control.js";
+import { CanonicalTeamStateSchema, type CanonicalTeamState } from "../schema/team.js";
+import {
+  defaultProcessLister,
+  discoverRuns,
+  findProjectRoot,
+  isSettled,
+  liveness,
+  processChildren,
+  settleLiveRun,
+  type LiveRunRecord,
+  type LiveRunTeam,
+  type NativeProcess,
+  type ProcessLister,
+} from "./live-runs.js";
+import { cancelLocalMissionRun, runRootForRecord, type MissionCancelResult } from "./mission-cancel.js";
+import { reconcileRuntimeSettlement } from "./runtime-settlement.js";
+import { writeAtomicArtifact } from "./artifact-transaction.js";
+import { assertSafeMissionId } from "./mission.js";
+import { assertValidRunId } from "./run-id.js";
+
+/** Cancellation-target resolution, re-exported so `uh kill` owns one surface. */
+export { runRootForRecord } from "./mission-cancel.js";
+
+/**
+ * UH kill — stop any run from the project root and prove it is dead.
+ *
+ * The 2026-09-22 incident had two halves: an operator could not point
+ * `uh mission cancel` at a team worker without typing that worker's artifact
+ * root, and after the cancels settled nothing demonstrated that the native
+ * processes were gone. This module fixes both by resolving every target
+ * through `discoverRuns` (the registry plus the bounded harness scan, so the
+ * artifact root is never typed), then watching the controller's own process
+ * tree with the same injectable lister `uh ps` uses, escalating to a forced
+ * tree termination, and finally reporting each run as
+ * `cancelled_gracefully`, `force_killed`, `still_alive` or `orphan_settled`.
+ *
+ * Two invariants hold the safety line:
+ * - A pid is only ever signalled when it is a recorded UH controller pid or a
+ *   descendant of one, taken from a snapshot of the tree that was captured
+ *   before anything was asked to stop.
+ * - Nothing is ever inferred from a missing heartbeat alone. An orphan is
+ *   settled only when the process lister confirms the controller pid is gone;
+ *   if the lister produced no table at all, the run is reported as an error
+ *   instead of being quietly written off.
+ */
+
+const execFileAsync = promisify(execFile);
+
+export const KILL_REPORT_SCHEMA_VERSION = "uh.kill.v0" as const;
+export const DEFAULT_KILL_WAIT_MS = 10_000;
+export const DEFAULT_KILL_POLL_MS = 100;
+/** After a forced termination, how long to wait before the confirming re-list. */
+const CONFIRM_GRACE_MS = 250;
+
+export type KillOutcome =
+  | "cancelled_gracefully"
+  | "force_killed"
+  | "still_alive"
+  | "orphan_settled"
+  | "skipped_settled"
+  | "error";
+
+export type KillTargetKind = "run" | "team-controller";
+
+export class KillError extends Error {
+  readonly code: string;
+
+  constructor(message: string, code = "kill_target") {
+    super(message);
+    this.name = "KillError";
+    this.code = code;
+  }
+}
+
+/** Selects which discovered runs a kill command targets. */
+export interface KillSelector {
+  runId?: string;
+  role?: string;
+  missionId?: string;
+  teamId?: string;
+  all?: boolean;
+  orphans?: boolean;
+}
+
+export interface KillReportEntry {
+  kind: KillTargetKind;
+  run_id: string;
+  mission_id: string;
+  runtime: string;
+  artifact_root: string;
+  controller_pid: number;
+  team?: LiveRunTeam;
+  outcome: KillOutcome;
+  stop_code?: string;
+  detail?: string;
+  /** Pids this target owns (a recorded controller pid plus its descendants). */
+  tree_pids: number[];
+  /** Pids still present on the machine after every attempt to stop them. */
+  surviving_pids: number[];
+}
+
+export interface TeamStateMark {
+  team_id: string;
+  run_id: string;
+  path: string;
+  marked: boolean;
+  reason?: string;
+}
+
+export interface KillCounts {
+  matched: number;
+  cancelled_gracefully: number;
+  force_killed: number;
+  still_alive: number;
+  orphan_settled: number;
+  skipped_settled: number;
+  error: number;
+}
+
+export interface KillReport {
+  schema_version: typeof KILL_REPORT_SCHEMA_VERSION;
+  generated_at: string;
+  project_root: string;
+  entries: KillReportEntry[];
+  teams: TeamStateMark[];
+  counts: KillCounts;
+  exit_code: number;
+}
+
+/** Terminates the process tree rooted at `pid`. Injected in tests. */
+export type ProcessKiller = (pid: number) => Promise<void>;
+/** The cancellation request itself; `cancelLocalMissionRun` in production. */
+export type CancelRun = (root: string, missionId: string, runId: string) => Promise<MissionCancelResult>;
+
+export interface KillOptions extends KillSelector {
+  /** Skip the polite request and terminate the tree immediately. */
+  force?: boolean;
+  /** How long to wait for the controller and its tree to exit on their own. */
+  waitMs?: number;
+  pollIntervalMs?: number;
+  now?: number;
+  listProcesses?: ProcessLister;
+  killProcess?: ProcessKiller;
+  cancelRun?: CancelRun;
+}
+
+export interface ResolveTargetsOptions {
+  now?: number;
+  listProcesses?: ProcessLister;
+  /** Pre-discovered records; lets one command list once. */
+  records?: LiveRunRecord[];
+}
+
+interface KillContext {
+  projectRoot: string;
+  now: number;
+  force: boolean;
+  waitMs: number;
+  pollIntervalMs: number;
+  listProcesses: ProcessLister;
+  killProcess: ProcessKiller;
+  cancelRun: CancelRun;
+  /** Controller pids hosted by more than one live run (a team controller). */
+  sharedControllerPids: Set<number>;
+  /** Process table captured before anything was asked to stop. */
+  baseline: NativeProcess[];
+}
+
+/* -------------------------------------------------------------------------- */
+/* Process termination                                                        */
+/* -------------------------------------------------------------------------- */
+
+function assertSignalablePid(pid: number): void {
+  if (!Number.isSafeInteger(pid) || pid <= 0) {
+    throw new KillError(`Refusing to signal an invalid pid: ${String(pid)}`, "invalid_pid");
+  }
+}
+
+/**
+ * Terminate a native process and everything below it. On Windows the tree goes
+ * through `taskkill /PID <pid> /T /F` invoked as argv against powershell.exe —
+ * never a bash command line, which rewrites `/PID` into a path. On POSIX the
+ * controller's process group is SIGKILLed, matching how the runtime was
+ * launched detached.
+ */
+export const defaultProcessKiller: ProcessKiller = async (pid: number): Promise<void> => {
+  assertSignalablePid(pid);
+  if (process.platform === "win32") {
+    try {
+      await execFileAsync("powershell.exe", [
+        "-NoLogo", "-NoProfile", "-NonInteractive", "-WindowStyle", "Hidden",
+        "-Command", `& taskkill.exe /PID ${pid} /T /F`,
+      ], { windowsHide: true, timeout: 30_000 });
+    } catch (error) {
+      // A process that exited between the list and the kill is a success.
+      if (!/not found|can not be found|cannot be found/i.test((error as Error).message)) throw error;
+    }
+    return;
+  }
+  try {
+    process.kill(-pid, "SIGKILL");
+    return;
+  } catch {
+    // Not a group leader (or already gone); fall through to the single pid.
+  }
+  try { process.kill(pid, "SIGKILL"); } catch { /* Already exited. */ }
+};
+
+/* -------------------------------------------------------------------------- */
+/* Target resolution                                                          */
+/* -------------------------------------------------------------------------- */
+
+function hasSelector(selector: KillSelector): boolean {
+  return selector.runId !== undefined || selector.role !== undefined || selector.missionId !== undefined
+    || selector.teamId !== undefined || selector.all === true || selector.orphans === true;
+}
+
+function assertValidSelector(selector: KillSelector): void {
+  if (!hasSelector(selector)) {
+    throw new KillError(
+      "No kill target given. Pass a run id (or a unique prefix), --role, --mission, --team, --all, or --orphans.",
+      "no_target",
+    );
+  }
+  if (selector.runId !== undefined) assertValidRunId(selector.runId);
+  for (const id of [selector.missionId, selector.teamId]) if (id !== undefined) assertSafeMissionId(id);
+}
+
+function matchesSelector(record: LiveRunRecord, selector: KillSelector): boolean {
+  if (selector.runId !== undefined) return record.run_id === selector.runId;
+  if (selector.role !== undefined) return record.team?.role === selector.role;
+  if (selector.missionId !== undefined) {
+    return record.mission_id === selector.missionId || record.team?.mission_id === selector.missionId;
+  }
+  if (selector.teamId !== undefined) return record.team?.mission_id === selector.teamId;
+  return true;
+}
+
+/**
+ * Resolve a selector against everything discoverable from the project root.
+ * A bare run id is accepted as a unique prefix; ambiguity and misses are
+ * errors rather than silent no-ops, because an operator killing a run by id
+ * must know whether it happened.
+ */
+export async function resolveKillTargets(
+  projectRoot: string,
+  selector: KillSelector,
+  options: ResolveTargetsOptions = {},
+): Promise<LiveRunRecord[]> {
+  assertValidSelector(selector);
+  const now = options.now ?? Date.now();
+  const records = options.records ?? await discoverRuns(path.resolve(projectRoot), {
+    includeSettled: selector.runId !== undefined,
+    now,
+    persist: false,
+  });
+
+  let matched: LiveRunRecord[];
+  const wanted = selector.runId;
+  if (wanted !== undefined) {
+    const exact = records.filter((record) => record.run_id === wanted);
+    if (exact.length > 0) {
+      matched = exact;
+    } else {
+      const prefixed = records.filter((record) => record.run_id.startsWith(wanted));
+      if (prefixed.length === 0) {
+        throw new KillError(
+          `Kill refused: no run matching "${wanted}" is discoverable from ${path.resolve(projectRoot)}. Try \`uh ps --all\`.`,
+          "unknown_target",
+        );
+      }
+      if (prefixed.length > 1) {
+        throw new KillError(
+          `"${wanted}" is ambiguous: ${prefixed.map((record) => record.run_id).sort().join(", ")}`,
+          "ambiguous_target",
+        );
+      }
+      matched = prefixed;
+    }
+  } else if (selector.orphans === true) {
+    const processes = await (options.listProcesses ?? defaultProcessLister)();
+    matched = records.filter((record) => !isSettled(record)
+      && liveness(record, processes, { now }) === "orphaned");
+  } else {
+    matched = records.filter((record) => !isSettled(record) && matchesSelector(record, selector));
+  }
+  return matched.sort((left, right) => left.run_id.localeCompare(right.run_id));
+}
+
+/** Controller pids that host more than one live run — the team controller. */
+export function sharedControllerPids(records: readonly LiveRunRecord[]): Set<number> {
+  const counts = new Map<number, number>();
+  for (const record of records) {
+    if (isSettled(record)) continue;
+    counts.set(record.controller_pid, (counts.get(record.controller_pid) ?? 0) + 1);
+  }
+  return new Set([...counts.entries()].filter(([, count]) => count > 1).map(([pid]) => pid));
+}
+
+/** The parent team run id a worker artifact root belongs to, if any. */
+function teamParentRunFromArtifactRoot(artifactRoot: string): { team_id: string; run_id: string } | undefined {
+  const match = /^\.harness\/missions\/([^/]+)\/team\/artifacts\/([^/]+)\/workers\/[^/]+$/.exec(artifactRoot);
+  return match ? { team_id: match[1], run_id: match[2] } : undefined;
+}
+
+/* -------------------------------------------------------------------------- */
+/* The kill of one run                                                        */
+/* -------------------------------------------------------------------------- */
+
+async function presentPids(context: KillContext): Promise<Set<number>> {
+  const processes = await context.listProcesses();
+  return new Set(processes.map((process) => process.pid));
+}
+
+function isPidPresent(processes: readonly NativeProcess[], pid: number): boolean {
+  return processes.some((process) => process.pid === pid);
+}
+
+async function ownedTreeGone(context: KillContext, ownedPids: readonly number[]): Promise<boolean> {
+  if (ownedPids.length === 0) return true;
+  const alive = await presentPids(context);
+  return ownedPids.every((pid) => !alive.has(pid));
+}
+
+function describeError(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+/** Read a run's runtime-control.json; undefined when it is absent or unreadable. */
+async function readControl(context: KillContext, record: LiveRunRecord): Promise<Record<string, unknown> | undefined> {
+  try {
+    return JSON.parse(await readFile(path.resolve(context.projectRoot, record.control_path), "utf8")) as Record<string, unknown>;
+  } catch {
+    return undefined;
+  }
+}
+
+async function writeControl(
+  context: KillContext,
+  record: LiveRunRecord,
+  patch: Record<string, unknown>,
+): Promise<boolean> {
+  const current = await readControl(context, record);
+  if (current === undefined) return false;
+  try {
+    const next = RuntimeControlSchema.parse({ ...current, ...patch });
+    await writeAtomicArtifact(path.resolve(context.projectRoot, record.control_path), JSON.stringify(next));
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function baseEntry(record: LiveRunRecord): KillReportEntry {
+  return {
+    kind: "run",
+    run_id: record.run_id,
+    mission_id: record.mission_id,
+    runtime: record.runtime,
+    artifact_root: record.artifact_root,
+    controller_pid: record.controller_pid,
+    ...(record.team !== undefined ? { team: record.team } : {}),
+    outcome: "error",
+    tree_pids: [],
+    surviving_pids: [],
+  };
+}
+
+/**
+ * Settle a run whose controller is gone. Nothing is chased or terminated here:
+ * the record is closed through `reconcileRuntimeSettlement` with stop_code
+ * `controller_lost`, writing the guardian-shaped receipt first when the native
+ * guardian never got the chance (the POSIX and pre-guardian cases).
+ *
+ * The receipt attests that the owned tree is gone, so it is only written when
+ * the process table attributes nothing further to the dead controller pid —
+ * otherwise the surviving pids are reported and the run stays open unless the
+ * operator forces the record closed.
+ */
+async function settleOrphanedRun(
+  context: KillContext,
+  record: LiveRunRecord,
+): Promise<KillReportEntry> {
+  const entry = baseEntry(record);
+  const attributed = processChildren(record.controller_pid, context.baseline).map((child) => child.pid);
+  if (attributed.length > 0 && !context.force) {
+    return {
+      ...entry,
+      outcome: "still_alive",
+      surviving_pids: [record.controller_pid, ...attributed],
+      detail: `controller pid ${record.controller_pid} is gone but ${attributed.length} process(es) are still parented to it; the record was not settled — re-run with --force to close it anyway`,
+    };
+  }
+  const control = await readControl(context, record);
+  let detail = "no runtime-control.json to settle";
+  if (control !== undefined) {
+    const receipted = control.status === "failed" && control.stop_code === "controller_lost"
+      && control.settlement_confirmed === true;
+    if (!receipted) {
+      const written = await writeControl(context, record, {
+        status: "failed",
+        stop_code: "controller_lost",
+        settlement_confirmed: true,
+        stop_reason: attributed.length > 0
+          ? `uh kill: controller pid ${record.controller_pid} is not running; forced before tree confirmation`
+          : `uh kill: controller pid ${record.controller_pid} is not running and the run never settled`,
+        heartbeat_at: new Date(context.now).toISOString(),
+      });
+      detail = written ? "controller_lost receipt written by uh kill" : "runtime-control.json could not be updated";
+    } else {
+      detail = "guardian controller_lost receipt reconciled";
+    }
+  }
+  const reconciled = await reconcileRuntimeSettlement(
+    runRootForRecord(context.projectRoot, record),
+    record.mission_id,
+    record.run_id,
+  );
+  await settleLiveRun(context.projectRoot, record.run_id, {
+    status: "failed",
+    stop_code: "controller_lost",
+    settled_at: new Date(context.now).toISOString(),
+  });
+  return {
+    ...entry,
+    outcome: "orphan_settled",
+    stop_code: "controller_lost",
+    detail: `${detail}; canonical settlement ${reconciled ? "reconciled" : "not applicable"}`,
+  };
+}
+
+/**
+ * Terminate the owned tree and confirm it. Every pid handed to the killer is
+ * checked against the snapshot taken before this run was touched, so a pid can
+ * only die here when it is the recorded controller or one of its descendants.
+ */
+async function forceKillOwnedTree(
+  context: KillContext,
+  owner: { label: string; controllerPid: number },
+  ownedPids: readonly number[],
+  treePids: readonly number[],
+): Promise<{ surviving: number[]; killed: boolean }> {
+  const alive = await presentPids(context);
+  const survivors = ownedPids.filter((pid) => alive.has(pid));
+  if (survivors.length === 0) return { surviving: [], killed: false };
+  // A live controller takes its whole tree with it (`/T`, or the process
+  // group); only when it is already gone is each descendant killed by pid.
+  const killedTree = alive.has(owner.controllerPid) ? [owner.controllerPid] : survivors;
+  for (const pid of killedTree) {
+    if (!treePids.includes(pid)) {
+      throw new KillError(
+        `Refusing to signal pid ${pid}: it is not the controller of ${owner.label} nor one of its recorded descendants.`,
+        "out_of_tree",
+      );
+    }
+    await context.killProcess(pid);
+  }
+  await delay(Math.min(CONFIRM_GRACE_MS, context.pollIntervalMs));
+  const after = await presentPids(context);
+  return { surviving: ownedPids.filter((pid) => after.has(pid)), killed: true };
+}
+
+async function killRecord(context: KillContext, record: LiveRunRecord): Promise<KillReportEntry> {
+  const entry = baseEntry(record);
+  if (isSettled(record)) {
+    // A settled run has nothing to terminate. It may still owe its canonical
+    // settlement: a guardian receipt that nobody reconciled is closed here.
+    if (record.stop_code === "controller_lost") return settleOrphanedRun(context, record);
+    return { ...entry, outcome: "skipped_settled", detail: `already ${record.status ?? "settled"}` };
+  }
+  if (!isPidPresent(context.baseline, record.controller_pid)) return settleOrphanedRun(context, record);
+
+  const shared = context.sharedControllerPids.has(record.controller_pid);
+  const descendants = processChildren(record.controller_pid, context.baseline).map((child) => child.pid);
+  const treePids = [record.controller_pid, ...descendants];
+  // A team controller is shared by its workers: this run may only wait for its
+  // own settlement, and only `--team` may terminate the controller itself. The
+  // siblings' runtimes are not this run's tree to report or to kill.
+  const ownedPids = shared ? [] : treePids;
+  entry.tree_pids = shared ? [record.controller_pid] : treePids;
+
+  let detail: string | undefined;
+  let settled = false;
+  if (context.force) {
+    detail = "forced: the controller was not asked to settle";
+  } else {
+    try {
+      const result = await context.cancelRun(
+        runRootForRecord(context.projectRoot, record),
+        record.mission_id,
+        record.run_id,
+      );
+      settled = result.ok === true && result.status !== "running";
+      if (!settled) detail = `cancel reported status ${result.status}`;
+    } catch (error) {
+      detail = describeError(error);
+    }
+    const deadline = Date.now() + context.waitMs;
+    while (Date.now() < deadline) {
+      if (await ownedTreeGone(context, ownedPids)) break;
+      await delay(context.pollIntervalMs);
+    }
+  }
+
+  if (await ownedTreeGone(context, ownedPids)) {
+    if (settled || !shared) {
+      return settleRecordAfterStop(context, record, entry, ownedPids, {
+        outcome: "cancelled_gracefully",
+        settled,
+        ...(detail !== undefined ? { detail } : {}),
+        ...(shared ? { detailSuffix: `controller pid ${record.controller_pid} is shared with the team and was left running` } : {}),
+      });
+    }
+    // The run did not settle and its controller belongs to the team: stopping
+    // it here would kill its siblings, so say so and fail instead.
+    return {
+      ...entry,
+      outcome: "still_alive",
+      surviving_pids: [],
+      detail: `${detail ?? "the run did not settle"}; controller pid ${record.controller_pid} is shared with other live runs — stop the team with --team ${record.team?.mission_id ?? record.mission_id}`,
+    };
+  }
+
+  const forced = await forceKillOwnedTree(
+    context,
+    { label: `run ${record.run_id}`, controllerPid: record.controller_pid },
+    ownedPids,
+    treePids,
+  );
+  if (forced.surviving.length > 0) {
+    return {
+      ...entry,
+      outcome: "still_alive",
+      surviving_pids: forced.surviving,
+      ...(detail !== undefined ? { detail } : {}),
+    };
+  }
+  return settleRecordAfterStop(context, record, entry, ownedPids, {
+    outcome: forced.killed ? "force_killed" : "cancelled_gracefully",
+    settled,
+    ...(detail !== undefined ? { detail } : {}),
+  });
+}
+
+/**
+ * Close the record of a run whose owned tree is provably dead. When the
+ * controller never reported its own settlement, kill writes the receipt: a
+ * dead process must not keep a run readable as `running` in `uh ps`.
+ */
+async function settleRecordAfterStop(
+  context: KillContext,
+  record: LiveRunRecord,
+  entry: KillReportEntry,
+  ownedPids: readonly number[],
+  verdict: { outcome: KillOutcome; settled: boolean; detail?: string; detailSuffix?: string },
+): Promise<KillReportEntry> {
+  const detail = [verdict.detail, verdict.detailSuffix].filter((part) => part !== undefined).join("; ");
+  // Only a run with a tree of its own can have that tree confirmed gone; a run
+  // sharing a team controller leaves its control file to the living controller.
+  if (ownedPids.length > 0 && (verdict.outcome === "force_killed" || !verdict.settled)) {
+    await writeControl(context, record, {
+      status: "cancelled",
+      stop_code: "cancelled",
+      settlement_confirmed: true,
+      stop_reason: `uh kill: owned process tree of controller pid ${record.controller_pid} is gone`,
+      heartbeat_at: new Date(context.now).toISOString(),
+    });
+  }
+  await settleLiveRun(context.projectRoot, record.run_id, {
+    status: "cancelled",
+    stop_code: "cancelled",
+    settled_at: new Date(context.now).toISOString(),
+  });
+  return {
+    ...entry,
+    outcome: verdict.outcome,
+    stop_code: "cancelled",
+    surviving_pids: [],
+    ...(detail.length > 0 ? { detail } : {}),
+  };
+}
+
+/* -------------------------------------------------------------------------- */
+/* Team cascade                                                               */
+/* -------------------------------------------------------------------------- */
+
+/** Stop the controller process a team's workers were hosted by, once per pid. */
+async function stopTeamControllers(
+  context: KillContext,
+  teamId: string,
+  records: readonly LiveRunRecord[],
+): Promise<KillReportEntry[]> {
+  const pids = [...new Set(records.map((record) => record.controller_pid))].sort((a, b) => a - b);
+  const entries: KillReportEntry[] = [];
+  for (const pid of pids) {
+    const sharedBy = records.filter((record) => record.controller_pid === pid).map((record) => record.run_id);
+    const base: KillReportEntry = {
+      kind: "team-controller",
+      run_id: `controller:${pid}`,
+      mission_id: teamId,
+      runtime: "ultimate-harness-team",
+      artifact_root: ".",
+      controller_pid: pid,
+      outcome: "error",
+      tree_pids: [pid],
+      surviving_pids: [],
+    };
+    const treePids = [pid, ...processChildren(pid, context.baseline).map((child) => child.pid)];
+    const forced = await forceKillOwnedTree(
+      context,
+      { label: `team ${teamId} controller pid ${pid}`, controllerPid: pid },
+      [pid],
+      treePids,
+    );
+    if (forced.surviving.length > 0) {
+      entries.push({ ...base, outcome: "still_alive", surviving_pids: forced.surviving });
+      continue;
+    }
+    entries.push({
+      ...base,
+      outcome: forced.killed ? "force_killed" : "cancelled_gracefully",
+      stop_code: "cancelled",
+      tree_pids: treePids,
+      detail: forced.killed
+        ? `terminated the team controller hosting ${sharedBy.length} worker run(s)`
+        : `exited on its own after ${sharedBy.length} worker run(s) settled`,
+    });
+  }
+  return entries;
+}
+
+/**
+ * Mark a team run's `team-state.json` as cancelled so the leader's work is
+ * never integrated. `uh.team-run.v0` has no cancelled status, so the mark is
+ * the schema's terminal `blocked` plus an explicit cancellation reason.
+ */
+export async function markTeamStateCancelled(
+  projectRoot: string,
+  teamId: string,
+  parentRunId: string,
+  now: number,
+): Promise<TeamStateMark> {
+  assertSafeMissionId(teamId);
+  assertValidRunId(parentRunId);
+  const file = path.join(projectRoot, ".harness", "missions", teamId, "runs", parentRunId, "team-state.json");
+  const finishedAt = new Date(now).toISOString();
+  let state: CanonicalTeamState;
+  try {
+    state = CanonicalTeamStateSchema.parse(JSON.parse(await readFile(file, "utf8")));
+  } catch (error) {
+    const code = (error as NodeJS.ErrnoException).code;
+    return { team_id: teamId, run_id: parentRunId, path: file, marked: false, reason: code === "ENOENT" ? "no team-state.json" : "team-state.json unreadable" };
+  }
+  if (state.status !== "running") {
+    return { team_id: teamId, run_id: parentRunId, path: file, marked: false, reason: `already ${state.status}` };
+  }
+  const cancelled: CanonicalTeamState = {
+    ...state,
+    status: "blocked",
+    finished_at: finishedAt,
+    leader: { ...state.leader, status: state.leader.status === "succeeded" ? "succeeded" : "blocked" },
+    workers: state.workers.map((worker) => worker.status === "succeeded" || worker.status === "failed"
+      || worker.status === "blocked" || worker.status === "error"
+      ? worker
+      : { ...worker, status: "blocked" as const, blocked_reason: `cancelled by uh kill --team ${teamId}`, finished_at: finishedAt }),
+    admission_blocked_reason: `cancelled by uh kill: team ${teamId} run ${parentRunId}`,
+  };
+  await writeAtomicArtifact(file, `${JSON.stringify(CanonicalTeamStateSchema.parse(cancelled), null, 2)}\n`);
+  return { team_id: teamId, run_id: parentRunId, path: file, marked: true };
+}
+
+/* -------------------------------------------------------------------------- */
+/* Entry point                                                                */
+/* -------------------------------------------------------------------------- */
+
+function emptyCounts(): KillCounts {
+  return {
+    matched: 0,
+    cancelled_gracefully: 0,
+    force_killed: 0,
+    still_alive: 0,
+    orphan_settled: 0,
+    skipped_settled: 0,
+    error: 0,
+  };
+}
+
+function buildReport(
+  projectRoot: string,
+  generatedAt: string,
+  entries: KillReportEntry[],
+  teams: TeamStateMark[],
+): KillReport {
+  const counts = emptyCounts();
+  counts.matched = entries.length;
+  for (const entry of entries) counts[entry.outcome] += 1;
+  const unresolved = entries.filter((entry) => entry.outcome === "still_alive" || entry.outcome === "error").length;
+  return {
+    schema_version: KILL_REPORT_SCHEMA_VERSION,
+    generated_at: generatedAt,
+    project_root: projectRoot,
+    entries,
+    teams,
+    counts,
+    exit_code: unresolved > 0 ? 1 : 0,
+  };
+}
+
+/**
+ * Stop every run a selector matches, and prove the native processes are gone.
+ * Never throws for per-run failures: they are reported as `error` entries with
+ * a non-zero exit code so one wedged run cannot hide the rest.
+ */
+export async function killRuns(projectRoot: string, options: KillOptions = {}): Promise<KillReport> {
+  assertValidSelector(options);
+  const resolved = await findProjectRoot(path.resolve(projectRoot));
+  const root = resolved ?? path.resolve(projectRoot);
+  const now = options.now ?? Date.now();
+  const usingDefaultLister = options.listProcesses === undefined;
+  const listProcesses = options.listProcesses ?? defaultProcessLister;
+  const baseline = await listProcesses();
+  if (usingDefaultLister && baseline.length === 0) {
+    throw new KillError(
+      "The native process table came back empty; refusing to treat live runs as orphans on no evidence.",
+      "process_table_unavailable",
+    );
+  }
+  const records = await discoverRuns(root, { includeSettled: options.runId !== undefined, now, persist: false });
+  const targets = await resolveKillTargets(root, options, { now, listProcesses, records });
+
+  const context: KillContext = {
+    projectRoot: root,
+    now,
+    force: options.force === true,
+    waitMs: options.waitMs ?? DEFAULT_KILL_WAIT_MS,
+    pollIntervalMs: options.pollIntervalMs ?? DEFAULT_KILL_POLL_MS,
+    listProcesses,
+    killProcess: options.killProcess ?? defaultProcessKiller,
+    cancelRun: options.cancelRun ?? cancelLocalMissionRun,
+    sharedControllerPids: sharedControllerPids(records),
+    baseline,
+  };
+
+  const entries: KillReportEntry[] = [];
+  for (const record of targets) {
+    try {
+      entries.push(await killRecord(context, record));
+    } catch (error) {
+      entries.push({ ...baseEntry(record), outcome: "error", detail: describeError(error) });
+    }
+  }
+
+  const teamMarks: TeamStateMark[] = [];
+  if (options.teamId !== undefined) {
+    const teamRecords = targets.filter((record) => record.team?.mission_id === options.teamId);
+    entries.push(...await stopTeamControllers(context, options.teamId, teamRecords));
+    const parentRuns = new Set<string>();
+    for (const record of teamRecords) {
+      const parent = teamParentRunFromArtifactRoot(record.artifact_root);
+      if (parent !== undefined && parent.team_id === options.teamId) parentRuns.add(parent.run_id);
+    }
+    for (const runId of [...parentRuns].sort()) {
+      teamMarks.push(await markTeamStateCancelled(root, options.teamId, runId, now));
+    }
+  }
+
+  return buildReport(root, new Date(now).toISOString(), entries, teamMarks);
+}
+
+/* -------------------------------------------------------------------------- */
+/* Presentation                                                               */
+/* -------------------------------------------------------------------------- */
+
+/** One line per stopped target: id, mission, role, outcome, and the pids. */
+export function formatKillReport(report: KillReport): string {
+  if (report.entries.length === 0) return "No runs matched.";
+  const lines = report.entries.map((entry) => {
+    const team = entry.team !== undefined ? `team=${entry.team.role}` : "team=-";
+    const pids = entry.tree_pids.length > 0 ? entry.tree_pids.join(",") : String(entry.controller_pid);
+    const parts = [
+      entry.run_id,
+      entry.mission_id,
+      team,
+      entry.runtime,
+      entry.outcome,
+      entry.stop_code !== undefined ? `stop=${entry.stop_code}` : "",
+      `pids=${pids}`,
+      entry.surviving_pids.length > 0 ? `surviving=${entry.surviving_pids.join(",")}` : "",
+      entry.detail !== undefined ? `(${entry.detail})` : "",
+    ].filter((part) => part.length > 0);
+    return parts.join("  ");
+  });
+  for (const mark of report.teams) {
+    lines.push(`team=${mark.team_id}  run=${mark.run_id}  ${mark.marked ? "team-state cancelled" : `team-state not marked (${mark.reason ?? "unknown"})`}`);
+  }
+  lines.push(
+    `matched=${report.counts.matched} gracefully=${report.counts.cancelled_gracefully} forced=${report.counts.force_killed} orphans=${report.counts.orphan_settled} alive=${report.counts.still_alive} errors=${report.counts.error}`,
+  );
+  return lines.join("\n");
+}
diff --git a/src/harness/live-runs.ts b/src/harness/live-runs.ts
new file mode 100644
index 0000000..64bedd1
--- /dev/null
+++ b/src/harness/live-runs.ts
@@ -0,0 +1,723 @@
+import { execFile } from "node:child_process";
+import { access, mkdir, open, readFile, readdir } from "node:fs/promises";
+import path from "node:path";
+import { promisify } from "node:util";
+import { z } from "zod";
+import { RuntimeControlSchema, type RuntimeControl } from "../schema/runtime-control.js";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import { writeAtomicArtifact } from "./artifact-transaction.js";
+import { assertValidRunId } from "./run-id.js";
+import type { MissionArtifactContext } from "../adapters/_artifact-context.js";
+
+/**
+ * UH live-runs — a project-root registry of in-flight runtime attempts.
+ *
+ * A runtime attempt claims its identity in `runtime-attempt.ts`; that claim
+ * records a small JSON entry under `.harness/live-runs/<run_id>.json` at the
+ * PROJECT root (the nearest ancestor of the artifact root holding
+ * `.harness/project.yaml`). `uh ps` reads the registry, merges whatever
+ * `runtime-control.json` currently says, and scans the harness tree for
+ * pre-registry runtime-control files so every live run is discoverable from
+ * the project root. Liveness is decided against an injectable process lister;
+ * the default lists native processes only.
+ */
+
+const execFileAsync = promisify(execFile);
+
+export const LIVE_RUN_SCHEMA_VERSION = "uh.live-run.v0" as const;
+/** A heartbeat older than this (times two) marks a run stale. */
+export const DEFAULT_STALL_WINDOW_MS = 60_000;
+export const STALE_HEARTBEAT_MULTIPLIER = 2;
+/** Settled runs stay visible to `uh ps --all` for one day. */
+export const SETTLED_RETENTION_MS = 24 * 60 * 60 * 1000;
+/** Never read more than the tail of an append-only events log. */
+export const EVENTS_TAIL_BYTES = 64 * 1024;
+export const SCAN_MAX_DEPTH = 16;
+export const SCAN_DIRECTORY_LIMIT = 20_000;
+export const PROCESS_COMMAND_PREVIEW_CHARS = 200;
+export const PROCESS_TREE_COMMAND_CHARS = 80;
+
+const TERMINAL_STATUSES = new Set(["passed", "failed", "blocked", "cancelled"]);
+
+export type LiveRunTeam = { mission_id: string; role: string };
+export type LivenessVerdict = "live" | "orphaned" | "stale" | "settled" | "unknown";
+export type LiveRunSource = "registry" | "scan";
+
+/** Persisted registry contract for a live run. */
+export const LiveRunTeamSchema = z
+  .object({ mission_id: z.string().min(1), role: z.string().min(1) })
+  .strict();
+
+export const LiveRunEntrySchema = z
+  .object({
+    schema_version: z.literal(LIVE_RUN_SCHEMA_VERSION),
+    run_id: z.string().min(1),
+    mission_id: z.string().min(1),
+    runtime: z.string().min(1),
+    model: z.string().min(1).optional(),
+    team: LiveRunTeamSchema.optional(),
+    /** Artifact root, relative to the project root, forward slashes. */
+    artifact_root: z.string(),
+    /** runtime-control.json path, relative to the project root, forward slashes. */
+    control_path: z.string(),
+    controller_pid: z.number().int().nonnegative(),
+    started_at: z.string(),
+    status: z.string().optional(),
+    stop_code: z.string().optional(),
+    settled_at: z.string().optional(),
+  })
+  .strict();
+export type LiveRunEntry = z.infer<typeof LiveRunEntrySchema>;
+
+export type NativeProcess = { pid: number; ppid: number; name: string; command: string };
+export type ProcessLister = () => Promise<NativeProcess[]>;
+
+/**
+ * A discovered live run. The registry fields are overlaid with whatever the
+ * run's `runtime-control.json` currently says, so the record always reflects
+ * the controller's own view even when the registry entry predates it.
+ */
+export interface LiveRunRecord {
+  source: LiveRunSource;
+  run_id: string;
+  mission_id: string;
+  runtime: string;
+  model?: string;
+  team?: LiveRunTeam;
+  artifact_root: string;
+  control_path: string;
+  controller_pid: number;
+  started_at: string;
+  status?: string;
+  stop_code?: string;
+  settled_at?: string;
+  heartbeat_at?: string;
+  ready_at?: string;
+  session_id?: string;
+  turns?: number;
+  denials?: number;
+  inflight_tools?: number;
+  peak_memory_bytes?: number;
+  last_event_at?: string;
+  last_tool?: string;
+}
+
+export interface LiveRunView extends LiveRunRecord {
+  liveness: LivenessVerdict;
+  children: NativeProcess[];
+  heartbeat_age_ms?: number;
+}
+
+export interface LivenessOptions {
+  now?: number;
+  stallWindowMs?: number;
+}
+
+export interface DiscoverRunsOptions {
+  includeSettled?: boolean;
+  now?: number;
+  /** Reconcile terminal control facts back into the registry (default true). */
+  persist?: boolean;
+}
+
+export interface ListLiveRunsOptions {
+  includeSettled?: boolean;
+  processes?: NativeProcess[];
+  now?: number;
+  stallWindowMs?: number;
+  persist?: boolean;
+}
+
+export interface ListLiveRunsResult {
+  records: LiveRunView[];
+  orphaned: number;
+}
+
+export function liveRunsDir(projectRoot: string): string {
+  return path.join(projectRoot, ".harness", "live-runs");
+}
+
+/** Forward-slashed relative path, with the project root itself rendered as ".". */
+function relativeOrDot(from: string, to: string): string {
+  const relative = relativeArtifactPath(from, to);
+  return relative.length === 0 ? "." : relative;
+}
+
+async function pathExists(target: string): Promise<boolean> {
+  try {
+    await access(target);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/** The nearest ancestor of `startDir` (inclusive) holding `.harness/project.yaml`. */
+export async function findProjectRoot(startDir: string): Promise<string | undefined> {
+  let dir = path.resolve(startDir);
+  for (;;) {
+    if (await pathExists(path.join(dir, ".harness", "project.yaml"))) return dir;
+    const parent = path.dirname(dir);
+    if (parent === dir) return undefined;
+    dir = parent;
+  }
+}
+
+/** Team identity encoded by a worker artifact root under a team directory. */
+export function teamFromArtifactRoot(projectRoot: string, artifactRoot: string): LiveRunTeam | undefined {
+  const relative = relativeArtifactPath(projectRoot, artifactRoot);
+  const match = /^\.harness\/missions\/([^/]+)\/team\/artifacts\/[^/]+\/workers\/([^/]+)$/.exec(relative);
+  return match ? { mission_id: match[1], role: match[2] } : undefined;
+}
+
+export function isSettled(record: { status?: string; settled_at?: string }): boolean {
+  if (record.settled_at !== undefined) return true;
+  return record.status !== undefined && TERMINAL_STATUSES.has(record.status);
+}
+
+function settledTime(record: { settled_at?: string; heartbeat_at?: string }): number | undefined {
+  const raw = record.settled_at ?? record.heartbeat_at;
+  if (raw === undefined) return undefined;
+  const parsed = Date.parse(raw);
+  return Number.isFinite(parsed) ? parsed : undefined;
+}
+
+export function heartbeatAgeMs(record: { heartbeat_at?: string }, now: number): number | undefined {
+  if (record.heartbeat_at === undefined) return undefined;
+  const parsed = Date.parse(record.heartbeat_at);
+  return Number.isFinite(parsed) ? Math.max(0, now - parsed) : undefined;
+}
+
+export interface RegisterLiveRunInput {
+  projectRoot: string;
+  artifactRoot: string;
+  runId: string;
+  missionId: string;
+  runtime: string;
+  model?: string;
+  team?: LiveRunTeam;
+  controlPath?: string;
+  controllerPid?: number;
+  startedAt?: string;
+  status?: string;
+  stopCode?: string;
+  settledAt?: string;
+}
+
+/** Write `.harness/live-runs/<run_id>.json` under the project root. */
+export async function registerLiveRun(input: RegisterLiveRunInput): Promise<string> {
+  assertValidRunId(input.runId);
+  const projectRoot = path.resolve(input.projectRoot);
+  const artifactRoot = path.resolve(input.artifactRoot);
+  const controlPath = input.controlPath !== undefined
+    ? path.resolve(input.controlPath)
+    : path.join(artifactRoot, ".harness", "missions", input.missionId, "runs", input.runId, "runtime-control.json");
+  const entry: LiveRunEntry = LiveRunEntrySchema.parse({
+    schema_version: LIVE_RUN_SCHEMA_VERSION,
+    run_id: input.runId,
+    mission_id: input.missionId,
+    runtime: input.runtime,
+    ...(input.model !== undefined ? { model: input.model } : {}),
+    ...(input.team !== undefined ? { team: input.team } : {}),
+    artifact_root: relativeOrDot(projectRoot, artifactRoot),
+    control_path: relativeOrDot(projectRoot, controlPath),
+    controller_pid: input.controllerPid ?? process.pid,
+    started_at: input.startedAt ?? new Date().toISOString(),
+    ...(input.status !== undefined ? { status: input.status } : {}),
+    ...(input.stopCode !== undefined ? { stop_code: input.stopCode } : {}),
+    ...(input.settledAt !== undefined ? { settled_at: input.settledAt } : {}),
+  });
+  const directory = liveRunsDir(projectRoot);
+  await mkdir(directory, { recursive: true });
+  const file = path.join(directory, `${input.runId}.json`);
+  await writeAtomicArtifact(file, JSON.stringify(entry, null, 2));
+  return file;
+}
+
+/** Update the registry entry with a terminal status. No-op without an entry. */
+export async function settleLiveRun(
+  projectRoot: string,
+  runId: string,
+  patch: { status?: string; stop_code?: string; settled_at?: string; controller_pid?: number },
+): Promise<void> {
+  assertValidRunId(runId);
+  const file = path.join(liveRunsDir(projectRoot), `${runId}.json`);
+  let entry: LiveRunEntry;
+  try {
+    entry = LiveRunEntrySchema.parse(JSON.parse(await readFile(file, "utf8")));
+  } catch {
+    return;
+  }
+  const updated: LiveRunEntry = LiveRunEntrySchema.parse({
+    ...entry,
+    ...(patch.status !== undefined ? { status: patch.status } : {}),
+    ...(patch.stop_code !== undefined ? { stop_code: patch.stop_code } : {}),
+    ...(patch.controller_pid !== undefined ? { controller_pid: patch.controller_pid } : {}),
+    settled_at: patch.settled_at ?? entry.settled_at ?? new Date().toISOString(),
+  });
+  await writeAtomicArtifact(file, JSON.stringify(updated, null, 2));
+}
+
+export interface ClaimLiveRunHint {
+  projectRoot?: string;
+  team?: LiveRunTeam;
+  runtime?: string;
+  model?: string;
+  artifactRoot?: string;
+  controllerPid?: number;
+}
+
+/**
+ * Register the attempt described by an adapter's mission artifact context.
+ * The project root is the nearest ancestor of the artifact root holding
+ * `.harness/project.yaml`; team identity is read from a worker artifact root
+ * under `.harness/missions/<team>/team/artifacts/<run>/workers/<role>`.
+ */
+export async function claimLiveRun(
+  artifacts: MissionArtifactContext,
+  hint: ClaimLiveRunHint = {},
+): Promise<void> {
+  const runId = path.basename(artifacts.runDir);
+  const missionId = path.basename(artifacts.missionDir);
+  const artifactRoot = hint.artifactRoot !== undefined
+    ? path.resolve(hint.artifactRoot)
+    : path.resolve(artifacts.missionDir, "..", "..", "..");
+  const projectRoot = hint.projectRoot !== undefined
+    ? path.resolve(hint.projectRoot)
+    : await findProjectRoot(artifactRoot);
+  if (projectRoot === undefined) return;
+  const team = hint.team ?? teamFromArtifactRoot(projectRoot, artifactRoot);
+  await registerLiveRun({
+    projectRoot,
+    artifactRoot,
+    runId,
+    missionId,
+    runtime: hint.runtime ?? "unknown",
+    ...(hint.model !== undefined ? { model: hint.model } : {}),
+    ...(team !== undefined ? { team } : {}),
+    controlPath: path.join(artifacts.runDir, "runtime-control.json"),
+    ...(hint.controllerPid !== undefined ? { controllerPid: hint.controllerPid } : {}),
+  });
+}
+
+/* -------------------------------------------------------------------------- */
+/* Discovery                                                                  */
+/* -------------------------------------------------------------------------- */
+
+async function readRegistry(projectRoot: string): Promise<LiveRunEntry[]> {
+  const directory = liveRunsDir(projectRoot);
+  let names: string[];
+  try {
+    names = await readdir(directory);
+  } catch {
+    return [];
+  }
+  const entries: LiveRunEntry[] = [];
+  for (const name of names.filter((name) => name.endsWith(".json"))) {
+    try {
+      const parsed = LiveRunEntrySchema.safeParse(JSON.parse(await readFile(path.join(directory, name), "utf8")));
+      if (parsed.success) entries.push(parsed.data);
+    } catch {
+      // A malformed registry entry must not hide the rest of the directory.
+    }
+  }
+  return entries;
+}
+
+async function readControlFile(projectRoot: string, controlPathRel: string): Promise<RuntimeControl | undefined> {
+  try {
+    const parsed = RuntimeControlSchema.safeParse(JSON.parse(await readFile(path.resolve(projectRoot, controlPathRel), "utf8")));
+    return parsed.success ? parsed.data : undefined;
+  } catch {
+    return undefined;
+  }
+}
+
+/** Read only the tail of events.ndjson for the last event time and tool name. */
+async function readEventsTail(
+  projectRoot: string,
+  controlPathRel: string,
+): Promise<{ lastEventAt?: string; lastTool?: string }> {
+  const eventsPath = path.join(path.dirname(path.resolve(projectRoot, controlPathRel)), "events.ndjson");
+  let handle;
+  try {
+    handle = await open(eventsPath, "r");
+  } catch {
+    return {};
+  }
+  try {
+    const { size } = await handle.stat();
+    if (size === 0) return {};
+    const length = Math.min(size, EVENTS_TAIL_BYTES);
+    const buffer = Buffer.allocUnsafe(length);
+    const { bytesRead } = await handle.read(buffer, 0, length, size - length);
+    let text = buffer.subarray(0, bytesRead).toString("utf8");
+    if (size > length) {
+      const newline = text.indexOf("\n");
+      text = newline >= 0 ? text.slice(newline + 1) : "";
+    }
+    let lastEventAt: string | undefined;
+    let lastTool: string | undefined;
+    for (const line of text.split("\n")) {
+      const trimmed = line.trim();
+      if (trimmed.length === 0) continue;
+      let event: Record<string, unknown>;
+      try {
+        const parsed = JSON.parse(trimmed) as unknown;
+        if (parsed === null || typeof parsed !== "object") continue;
+        event = parsed as Record<string, unknown>;
+      } catch {
+        continue;
+      }
+      if (typeof event.timestamp === "string") lastEventAt = event.timestamp;
+      const tool = event.toolName ?? event.tool_name ?? event.tool;
+      if (typeof tool === "string" && tool.length > 0) lastTool = tool;
+    }
+    return {
+      ...(lastEventAt !== undefined ? { lastEventAt } : {}),
+      ...(lastTool !== undefined ? { lastTool } : {}),
+    };
+  } finally {
+    await handle.close();
+  }
+}
+
+interface ScannedControl {
+  runId: string;
+  controlPathRel: string;
+  artifactRootAbs: string;
+  artifactRootRel: string;
+}
+
+/** Depth-limited walk of `.harness/` for runtime-control.json files. */
+async function scanForRuntimeControls(projectRoot: string): Promise<ScannedControl[]> {
+  const found: ScannedControl[] = [];
+  let visited = 0;
+  const walk = async (directory: string, depth: number): Promise<void> => {
+    if (depth > SCAN_MAX_DEPTH || visited >= SCAN_DIRECTORY_LIMIT) return;
+    let entries;
+    try {
+      entries = await readdir(directory, { withFileTypes: true });
+    } catch {
+      return;
+    }
+    visited += 1;
+    for (const entry of entries) {
+      if (entry.name === "node_modules" || entry.name === ".git" || entry.name === "live-runs") continue;
+      if (entry.isDirectory()) {
+        await walk(path.join(directory, entry.name), depth + 1);
+        continue;
+      }
+      if (entry.name !== "runtime-control.json") continue;
+      const runDir = directory;
+      const runId = path.basename(runDir);
+      try {
+        assertValidRunId(runId);
+      } catch {
+        continue;
+      }
+      const artifactRootAbs = path.resolve(runDir, "..", "..", "..", "..", "..");
+      found.push({
+        runId,
+        controlPathRel: relativeArtifactPath(projectRoot, path.join(runDir, entry.name)),
+        artifactRootAbs,
+        artifactRootRel: relativeArtifactPath(projectRoot, artifactRootAbs),
+      });
+    }
+  };
+  await walk(path.join(projectRoot, ".harness"), 0);
+  return found;
+}
+
+async function hydrateRegistryRecord(projectRoot: string, entry: LiveRunEntry): Promise<LiveRunRecord> {
+  const control = await readControlFile(projectRoot, entry.control_path);
+  const events = await readEventsTail(projectRoot, entry.control_path);
+  return {
+    source: "registry",
+    run_id: entry.run_id,
+    mission_id: entry.mission_id,
+    runtime: control?.runtime ?? entry.runtime,
+    ...(entry.model !== undefined ? { model: entry.model } : {}),
+    ...(entry.team !== undefined ? { team: entry.team } : {}),
+    artifact_root: entry.artifact_root,
+    control_path: entry.control_path,
+    controller_pid: control?.controller_pid ?? entry.controller_pid,
+    started_at: entry.started_at,
+    ...(control !== undefined
+      ? { status: control.status, heartbeat_at: control.heartbeat_at }
+      : (entry.status !== undefined ? { status: entry.status } : {})),
+    ...(control?.stop_code !== undefined
+      ? { stop_code: control.stop_code }
+      : (entry.stop_code !== undefined ? { stop_code: entry.stop_code } : {})),
+    ...(control?.ready_at !== undefined ? { ready_at: control.ready_at } : {}),
+    ...(control?.session_id !== undefined ? { session_id: control.session_id } : {}),
+    ...(control?.turns !== undefined ? { turns: control.turns } : {}),
+    ...(control?.denials !== undefined ? { denials: control.denials } : {}),
+    ...(control?.inflight_tools !== undefined ? { inflight_tools: control.inflight_tools } : {}),
+    ...(control?.peak_memory_bytes !== undefined ? { peak_memory_bytes: control.peak_memory_bytes } : {}),
+    ...(entry.settled_at !== undefined ? { settled_at: entry.settled_at } : {}),
+    ...(events.lastEventAt !== undefined ? { last_event_at: events.lastEventAt } : {}),
+    ...(events.lastTool !== undefined ? { last_tool: events.lastTool } : {}),
+  };
+}
+
+async function hydrateScannedRecord(projectRoot: string, found: ScannedControl): Promise<LiveRunRecord | undefined> {
+  const control = await readControlFile(projectRoot, found.controlPathRel);
+  if (control === undefined) return undefined;
+  const events = await readEventsTail(projectRoot, found.controlPathRel);
+  const team = teamFromArtifactRoot(projectRoot, found.artifactRootAbs);
+  return {
+    source: "scan",
+    run_id: found.runId,
+    mission_id: control.mission_id,
+    runtime: control.runtime,
+    artifact_root: found.artifactRootRel,
+    control_path: found.controlPathRel,
+    controller_pid: control.controller_pid,
+    started_at: control.started_at,
+    status: control.status,
+    ...(control.stop_code !== undefined ? { stop_code: control.stop_code } : {}),
+    heartbeat_at: control.heartbeat_at,
+    ...(control.ready_at !== undefined ? { ready_at: control.ready_at } : {}),
+    ...(control.session_id !== undefined ? { session_id: control.session_id } : {}),
+    turns: control.turns,
+    denials: control.denials,
+    inflight_tools: control.inflight_tools,
+    ...(control.peak_memory_bytes !== undefined ? { peak_memory_bytes: control.peak_memory_bytes } : {}),
+    ...(team !== undefined ? { team } : {}),
+    ...(events.lastEventAt !== undefined ? { last_event_at: events.lastEventAt } : {}),
+    ...(events.lastTool !== undefined ? { last_tool: events.lastTool } : {}),
+  };
+}
+
+/**
+ * Every run discoverable from the project root: the registry unioned with a
+ * bounded scan for pre-registry runtime-control.json files. Settled runs are
+ * dropped unless `includeSettled`, and then only within the 24h retention
+ * window. Terminal control facts are reconciled back into the registry.
+ */
+export async function discoverRuns(
+  projectRoot: string,
+  options: DiscoverRunsOptions = {},
+): Promise<LiveRunRecord[]> {
+  const includeSettled = options.includeSettled === true;
+  const now = options.now ?? Date.now();
+  const persist = options.persist !== false;
+  const records: LiveRunRecord[] = [];
+  const seen = new Set<string>();
+  for (const entry of await readRegistry(projectRoot)) {
+    const record = await hydrateRegistryRecord(projectRoot, entry);
+    if (persist && isSettled(record) && entry.settled_at === undefined) {
+      await settleLiveRun(projectRoot, entry.run_id, {
+        status: record.status,
+        stop_code: record.stop_code,
+        settled_at: record.heartbeat_at,
+        controller_pid: record.controller_pid,
+      }).catch(() => undefined);
+    }
+    seen.add(record.run_id);
+    records.push(record);
+  }
+  for (const found of await scanForRuntimeControls(projectRoot)) {
+    if (seen.has(found.runId)) continue;
+    const record = await hydrateScannedRecord(projectRoot, found);
+    if (record === undefined) continue;
+    seen.add(record.run_id);
+    records.push(record);
+  }
+  return records.filter((record) => {
+    if (!isSettled(record)) return true;
+    if (!includeSettled) return false;
+    const at = settledTime(record);
+    return at === undefined || now - at <= SETTLED_RETENTION_MS;
+  });
+}
+
+/* -------------------------------------------------------------------------- */
+/* Liveness                                                                   */
+/* -------------------------------------------------------------------------- */
+
+/**
+ * Verdict for a discovered run.
+ *
+ * - `settled`: terminal status (or an explicit settled_at).
+ * - `orphaned`: the controller reports `running` but its pid is gone. This is
+ *   the incident case and must be surfaced loudly.
+ * - `stale`: the controller is alive but its heartbeat is older than twice the
+ *   stall window.
+ * - `live`: controller alive and running with a fresh heartbeat.
+ */
+export function liveness(
+  record: LiveRunRecord,
+  processes: readonly NativeProcess[],
+  options: LivenessOptions = {},
+): LivenessVerdict {
+  const now = options.now ?? Date.now();
+  const stallWindowMs = options.stallWindowMs ?? DEFAULT_STALL_WINDOW_MS;
+  if (isSettled(record)) return "settled";
+  const running = record.status === undefined || record.status === "running";
+  if (!running) return "unknown";
+  if (!processes.some((process) => process.pid === record.controller_pid)) return "orphaned";
+  const age = heartbeatAgeMs(record, now);
+  if (age !== undefined && age > stallWindowMs * STALE_HEARTBEAT_MULTIPLIER) return "stale";
+  return "live";
+}
+
+/** Native processes whose parent chain leads back to `controllerPid`. */
+export function processChildren(controllerPid: number, processes: readonly NativeProcess[]): NativeProcess[] {
+  const byParent = new Map<number, NativeProcess[]>();
+  for (const process of processes) {
+    const siblings = byParent.get(process.ppid) ?? [];
+    siblings.push(process);
+    byParent.set(process.ppid, siblings);
+  }
+  const children: NativeProcess[] = [];
+  const seen = new Set<number>([controllerPid]);
+  const stack = [controllerPid];
+  while (stack.length > 0) {
+    const pid = stack.pop()!;
+    for (const child of byParent.get(pid) ?? []) {
+      if (seen.has(child.pid)) continue;
+      seen.add(child.pid);
+      // The tree keeps only the first 80 characters of each command line.
+      children.push({ ...child, command: child.command.slice(0, PROCESS_TREE_COMMAND_CHARS) });
+      stack.push(child.pid);
+    }
+  }
+  return children;
+}
+
+/** Default process lister: Windows CIM, else POSIX `ps`. Never throws. */
+export async function defaultProcessLister(): Promise<NativeProcess[]> {
+  try {
+    return process.platform === "win32" ? await listWindowsProcesses() : await listPosixProcesses();
+  } catch {
+    return [];
+  }
+}
+
+async function listWindowsProcesses(): Promise<NativeProcess[]> {
+  const { stdout } = await execFileAsync("powershell.exe", [
+    "-NoLogo", "-NoProfile", "-NonInteractive", "-Command",
+    "Get-CimInstance Win32_Process | Select-Object ProcessId,ParentProcessId,Name,CommandLine | ConvertTo-Json -Compress -Depth 2",
+  ], { windowsHide: true, maxBuffer: 64 * 1024 * 1024 });
+  const trimmed = stdout.trim();
+  if (trimmed.length === 0) return [];
+  const parsed = JSON.parse(trimmed) as unknown;
+  const rows = Array.isArray(parsed) ? parsed : [parsed];
+  const processes: NativeProcess[] = [];
+  for (const row of rows) {
+    if (row === null || typeof row !== "object") continue;
+    const record = row as Record<string, unknown>;
+    const pid = Number(record.ProcessId);
+    const ppid = Number(record.ParentProcessId);
+    if (!Number.isFinite(pid)) continue;
+    processes.push({
+      pid,
+      ppid: Number.isFinite(ppid) ? ppid : 0,
+      name: typeof record.Name === "string" ? record.Name : "",
+      command: (typeof record.CommandLine === "string" ? record.CommandLine : "").slice(0, PROCESS_COMMAND_PREVIEW_CHARS),
+    });
+  }
+  return processes;
+}
+
+async function listPosixProcesses(): Promise<NativeProcess[]> {
+  const { stdout } = await execFileAsync("ps", ["-eo", "pid,ppid,comm,args"], { maxBuffer: 64 * 1024 * 1024 });
+  const processes: NativeProcess[] = [];
+  for (const line of stdout.split("\n").slice(1)) {
+    const match = /^\s*(\d+)\s+(\d+)\s+(\S+)\s*(.*)$/.exec(line);
+    if (!match) continue;
+    processes.push({
+      pid: Number(match[1]),
+      ppid: Number(match[2]),
+      name: match[3],
+      command: match[4].slice(0, PROCESS_COMMAND_PREVIEW_CHARS),
+    });
+  }
+  return processes;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Presentation                                                               */
+/* -------------------------------------------------------------------------- */
+
+/** Discover runs, attach liveness verdicts, and list the controller's tree. */
+export async function listLiveRuns(
+  projectRoot: string,
+  options: ListLiveRunsOptions = {},
+): Promise<ListLiveRunsResult> {
+  const now = options.now ?? Date.now();
+  const records = await discoverRuns(projectRoot, {
+    includeSettled: options.includeSettled,
+    now,
+    persist: options.persist,
+  });
+  let processes = options.processes;
+  if (processes === undefined) {
+    processes = records.some((record) => !isSettled(record)) ? await defaultProcessLister() : [];
+  }
+  const records_ = records.map((record): LiveRunView => {
+    const age = heartbeatAgeMs(record, now);
+    return {
+      ...record,
+      liveness: liveness(record, processes, { now, stallWindowMs: options.stallWindowMs }),
+      children: processChildren(record.controller_pid, processes),
+      ...(age !== undefined ? { heartbeat_age_ms: age } : {}),
+    };
+  });
+  return { records: records_, orphaned: records_.filter((record) => record.liveness === "orphaned").length };
+}
+
+/** Counts for `uh status` / `uh status --json`; never throws. */
+export async function liveRunCounts(
+  projectRoot: string,
+  options: ListLiveRunsOptions = {},
+): Promise<{ total: number; orphaned: number }> {
+  try {
+    const { records, orphaned } = await listLiveRuns(projectRoot, { ...options, persist: options.persist ?? false });
+    return { total: records.length, orphaned };
+  } catch {
+    return { total: 0, orphaned: 0 };
+  }
+}
+
+/** Exit code for `uh ps`: 3 when at least one run is orphaned, else 0. */
+export function liveRunsExitCode(records: readonly LiveRunView[]): number {
+  return records.some((record) => record.liveness === "orphaned") ? 3 : 0;
+}
+
+function formatAge(milliseconds: number | undefined): string {
+  if (milliseconds === undefined || !Number.isFinite(milliseconds)) return "-";
+  const clamped = Math.max(0, Math.round(milliseconds));
+  return clamped < 1000 ? `${clamped}ms` : `${Math.floor(clamped / 1000)}s`;
+}
+
+/** One line per run: id, mission, team role, route, verdict, counters, ages, pids. */
+export function formatLiveRuns(records: readonly LiveRunView[], options: { now?: number } = {}): string {
+  if (records.length === 0) return "No live runs.";
+  const now = options.now ?? Date.now();
+  return records
+    .map((record) => {
+      const team = record.team !== undefined ? `team=${record.team.role}` : "team=-";
+      const route = record.model !== undefined ? `${record.runtime}/${record.model}` : record.runtime;
+      const heartbeat = formatAge(record.heartbeat_age_ms ?? heartbeatAgeMs(record, now));
+      const lastAge = record.last_event_at !== undefined
+        ? formatAge(now - Date.parse(record.last_event_at))
+        : "-";
+      const pids = [record.controller_pid, ...record.children.map((child) => child.pid)].join(",");
+      return [
+        record.run_id,
+        record.mission_id,
+        team,
+        route,
+        record.liveness,
+        `turns=${record.turns ?? 0}`,
+        `denials=${record.denials ?? 0}`,
+        `hb=${heartbeat}`,
+        `last=${record.last_tool ?? "-"} (${lastAge})`,
+        `pids=${pids}`,
+      ].join("  ");
+    })
+    .join("\n");
+}
diff --git a/src/harness/loop-probe.ts b/src/harness/loop-probe.ts
new file mode 100644
index 0000000..29132ab
--- /dev/null
+++ b/src/harness/loop-probe.ts
@@ -0,0 +1,496 @@
+// GitNexus rule exempt: new module, no existing symbols edited.
+// Shadow-only loop probe. Nothing here decides, stops, promotes or gates work,
+// and no code path consumes its answer. See docs/architecture/runtime-events.md
+// for the native event shapes this projects.
+import {
+  evaluateSystemOne,
+  type NoulQuestion,
+  type Question,
+  type SystemOneResult,
+  type TypeSafeAnswer,
+} from "./typesafe.js";
+
+/** Completed tool calls retained by a projection. */
+export const DEFAULT_ACTIVITY_WINDOW = 12;
+
+/** Below this many completed calls there is no observable pattern to ask about. */
+export const MIN_PROBE_CALLS = 4;
+
+export type ActivitySource = "oh-my-pi" | "command-code";
+
+export type ToolCallKind = "read" | "write" | "shell" | "other";
+
+/** `denied` is a guard or permission refusal, which is not the same fact as an error. */
+export type ErrorClass = "none" | "nonzero_exit" | "tool_error" | "denied";
+
+/** One completed tool call, reduced to the fields the probe is allowed to name. */
+export type ProjectedToolCall = {
+  tool: string;
+  kind: ToolCallKind;
+  /** A path relative to the working directory, a shell executable name, or `<outside>`. */
+  target: string;
+  ok: boolean;
+  error_class: ErrorClass;
+};
+
+/** The harness-authored projection of recent activity that the model is asked about. */
+export type ActivityWindow = {
+  source: ActivitySource;
+  window: number;
+  generated_at: string;
+  calls: ProjectedToolCall[];
+};
+
+export type DeterministicLoopSignals = {
+  /** Calls that repeat a completed call seen earlier in the same window. */
+  identical_repeats: number;
+  /** Transitions that step back to the state two calls earlier. */
+  alternating_pairs: number;
+  distinct_targets: number;
+};
+
+export type ProjectActivityOptions = {
+  window?: number;
+  workingDirectory?: string;
+};
+
+export type LoopProbeAnswerKey = "retrying" | "progressing" | "alternating";
+
+export const LOOP_PROBE_QUESTIONS: Record<LoopProbeAnswerKey, LoopProbeAnswerKey> = {
+  retrying: "retrying",
+  progressing: "progressing",
+  alternating: "alternating",
+};
+
+export type LoopProbeAnswers = {
+  retrying?: TypeSafeAnswer;
+  progressing?: TypeSafeAnswer;
+  alternating?: TypeSafeAnswer;
+};
+
+/** No provider call is made for a window too small to contain a pattern. */
+export type LoopProbeSkipped = {
+  kind: "skipped";
+  reason: "insufficient_activity";
+  calls: number;
+};
+
+export type LoopProbeResult = (SystemOneResult | LoopProbeSkipped) & {
+  signals: DeterministicLoopSignals;
+  answers?: LoopProbeAnswers;
+};
+
+export type EvaluateLoopProbeOptions = {
+  model?: string;
+  apiKey?: string;
+  timeoutMs?: number;
+  /** Explicitly switch the shadow probe off; a request is then never constructed. */
+  configured?: boolean;
+  fetch?: typeof globalThis.fetch;
+  delay?: (ms: number) => Promise<void>;
+};
+
+const READ_TOOLS = new Set(["read_file", "read", "view", "cat", "head", "tail", "glob", "grep", "search", "list_dir", "read_directory", "ls"]);
+const WRITE_TOOLS = new Set(["write_file", "edit_file", "write", "edit", "apply_patch", "patch", "create_file", "str_replace", "multi_edit", "notebook_edit", "search_replace"]);
+const SHELL_TOOLS = new Set(["bash", "shell", "shell_command", "run_command", "terminal", "execute", "powershell", "zsh", "cmd"]);
+
+/** Command Code registers a call at `tool_queued`; a later `tool_running` repeats it without arguments. */
+const COMMAND_CODE_START_TYPES: ReadonlySet<string> = new Set(["tool_queued", "tool_running"]);
+/** oh-my-pi registers a call once, at `tool_execution_start`, with `args`. */
+const OH_MY_PI_START_TYPES: ReadonlySet<string> = new Set(["tool_execution_start"]);
+const TOOL_END_TYPES: ReadonlySet<string> = new Set(["tool_execution_end", "tool_completed"]);
+const TOOL_BLOCK_TYPES: ReadonlySet<string> = new Set(["tool_hook_blocked", "tool_call_blocked", "tool_denied"]);
+const CONTRACT_PREFIX = "CONTRACT:";
+const DENIAL_STATES = new Set(["denied", "blocked", "permission_denied"]);
+
+const IS_WINDOWS = process.platform === "win32";
+const OUTSIDE = "<outside>";
+const UNKNOWN_TARGET = "unknown";
+/** A pure search names no path, so the probe publishes a placeholder rather than the query. */
+const PATTERN_TARGET = "<pattern>";
+
+type Event = Record<string, unknown>;
+
+/** A call seen at its start event, awaiting its completion by the same call id. */
+type PendingStart = {
+  toolName: string;
+  args: Event | undefined;
+  source: ActivitySource;
+};
+
+function record(value: unknown): Event | undefined {
+  return typeof value === "object" && value !== null && !Array.isArray(value) ? value as Event : undefined;
+}
+
+/** Command Code wraps native events in an `event` envelope; oh-my-pi does not. */
+function nativeEvent(value: unknown): Event | undefined {
+  const outer = record(value);
+  if (!outer) return undefined;
+  return record(outer.event) ?? outer;
+}
+
+function eventCallId(event: Event): string {
+  return String(event.toolCallId ?? event.tool_call_id ?? event.id ?? "");
+}
+
+function eventToolName(event: Event): string {
+  const name = event.toolName ?? event.tool_name ?? event.tool;
+  return typeof name === "string" ? name.trim() : "";
+}
+
+function eventArgs(event: Event): Event | undefined {
+  const args = record(event.input) ?? record(event.args);
+  if (args) return args;
+  return typeof event.command === "string" ? { command: event.command } : undefined;
+}
+
+function classifyKind(toolName: string): ToolCallKind {
+  const name = toolName.toLowerCase();
+  if (READ_TOOLS.has(name) || name.startsWith("view_") || name.startsWith("list_")) return "read";
+  if (WRITE_TOOLS.has(name) || name.startsWith("write_") || name.startsWith("edit_")) return "write";
+  if (SHELL_TOOLS.has(name) || name.startsWith("run_")) return "shell";
+  return "other";
+}
+
+function firstPathString(source: Event | undefined, keys: readonly string[]): string | undefined {
+  if (!source) return undefined;
+  for (const key of keys) {
+    const value = source[key];
+    if (typeof value === "string" && value.trim()) return value.trim();
+  }
+  return undefined;
+}
+
+/** The first shell token that is not a leading `NAME=value` assignment. */
+function shellExecutable(command: string): string {
+  for (const token of command.trim().split(/\s+/)) {
+    if (!token) continue;
+    if (/^[A-Za-z_][A-Za-z0-9_]*=/.test(token)) continue;
+    if (token === "sudo" || token === "env" || token === "time") continue;
+    return token;
+  }
+  return "";
+}
+
+function executableName(token: string): string {
+  const bare = token.replace(/^['"]|['"]$/g, "");
+  const base = bare.split("/").filter(Boolean).pop() ?? "";
+  const lowered = base.toLowerCase();
+  if (!lowered) return UNKNOWN_TARGET;
+  const dot = lowered.lastIndexOf(".");
+  // A leading dot is a hidden file or a relative segment, not an extension.
+  return dot > 0 ? lowered.slice(0, dot) : lowered;
+}
+
+function withForwardSlashes(value: string): string {
+  const slashes = value.replace(/\\/g, "/");
+  const absoluteDrive = /^[A-Za-z]:\//.test(slashes);
+  const rooted = absoluteDrive || slashes.startsWith("/");
+  const segments: string[] = [];
+  for (const segment of slashes.split("/")) {
+    if (!segment || segment === ".") continue;
+    if (segment === "..") {
+      if (segments.length === 0) {
+        if (!rooted) segments.push("..");
+        continue;
+      }
+      segments.pop();
+      continue;
+    }
+    segments.push(segment);
+  }
+  const joined = segments.join("/");
+  if (rooted) return `/${joined}`;
+  return joined || ".";
+}
+
+function isAbsolutePath(value: string): boolean {
+  return value.startsWith("/") || /^[A-Za-z]:\//.test(value);
+}
+
+function compareKey(value: string): string {
+  const slashed = withForwardSlashes(value);
+  return IS_WINDOWS ? slashed.toLowerCase() : slashed;
+}
+
+/**
+ * A path the probe may name: relative to the working directory with forward
+ * slashes, or `<outside>` when it lies beyond it. Absolute paths never survive,
+ * so a projection cannot publish a home directory, a volume root or a sibling
+ * checkout.
+ */
+export function relativeDisplayPath(value: string, workingDirectory?: string): string {
+  const trimmed = value.trim().replace(/^['"]|['"]$/g, "");
+  if (!trimmed) return UNKNOWN_TARGET;
+  if (!isAbsolutePath(trimmed)) {
+    const local = withForwardSlashes(trimmed);
+    return local.startsWith("../") || local === ".." ? OUTSIDE : local;
+  }
+  if (!workingDirectory) return OUTSIDE;
+  const absolute = withForwardSlashes(trimmed);
+  const root = withForwardSlashes(workingDirectory);
+  const candidate = compareKey(absolute);
+  const rootKey = compareKey(root);
+  if (candidate === rootKey) return ".";
+  if (candidate.startsWith(`${rootKey.replace(/\/$/, "")}/`)) {
+    return absolute.slice(root.replace(/\/+$/, "").length).replace(/^\/+/, "");
+  }
+  return OUTSIDE;
+}
+
+/** Path-shaped arguments: `paths` is an array, the rest are strings. The first entry names the target. */
+const PATH_ARGUMENT_KEYS = ["path", "file_path", "filePath", "file", "target_file", "notebook_path", "abs_path"] as const;
+
+function firstPathValue(args: Event | undefined): string | undefined {
+  if (!args) return undefined;
+  const paths = args.paths;
+  if (Array.isArray(paths)) {
+    for (const value of paths) {
+      if (typeof value === "string" && value.trim()) return value.trim();
+    }
+  }
+  return firstPathString(args, PATH_ARGUMENT_KEYS);
+}
+
+function projectTarget(args: Event | undefined, kind: ToolCallKind, workingDirectory?: string): string {
+  if (kind === "shell") {
+    const command = firstPathString(args, ["command", "cmd"]) ?? "";
+    return executableName(shellExecutable(command));
+  }
+  // A path names the target; a pure search has only a query, which is never published.
+  const path = firstPathValue(args);
+  if (path !== undefined) return relativeDisplayPath(path, workingDirectory);
+  const pattern = args?.pattern;
+  if (kind === "read" && typeof pattern === "string" && pattern.trim()) return PATTERN_TARGET;
+  return UNKNOWN_TARGET;
+}
+
+function containsDenialText(value: unknown, depth = 0): boolean {
+  if (depth > 4) return false;
+  if (typeof value === "string") return value.trimStart().startsWith(CONTRACT_PREFIX);
+  if (Array.isArray(value)) return value.some(item => containsDenialText(item, depth + 1));
+  const item = record(value);
+  if (!item) return false;
+  if (typeof item.text === "string" && item.text.trimStart().startsWith(CONTRACT_PREFIX)) return true;
+  if (typeof item.reason === "string" && item.reason.trimStart().startsWith(CONTRACT_PREFIX)) return true;
+  if (DENIAL_STATES.has(String(item.status ?? item.kind ?? "").toLowerCase())) return true;
+  return Object.values(item).some(child => containsDenialText(child, depth + 1));
+}
+
+function exitCodeOf(source: Event | undefined): number | undefined {
+  const value = source?.exitCode ?? source?.exit_code;
+  return typeof value === "number" && Number.isFinite(value) ? value : undefined;
+}
+
+function projectStatus(end: Event): { ok: boolean; error_class: ErrorClass } {
+  const result = record(end.result);
+  const denied = containsDenialText(end) || end.denied === true || end.is_denied === true;
+  if (denied) return { ok: false, error_class: "denied" };
+  const exitCode = exitCodeOf(result) ?? exitCodeOf(end);
+  const isError = end.isError === true || result?.isError === true || result?.is_error === true ||
+    end.error === true || (typeof end.error === "object" && end.error !== null);
+  if (exitCode !== undefined && exitCode !== 0) return { ok: false, error_class: "nonzero_exit" };
+  if (isError) return { ok: false, error_class: "tool_error" };
+  if (result?.ok === false || result?.success === false) return { ok: false, error_class: "tool_error" };
+  return { ok: true, error_class: "none" };
+}
+
+/**
+ * Reduce a native event stream to the last `window` completed tool calls.
+ * Only the whitelist is retained: arguments, file contents, command lines,
+ * output and message text are read to classify a call and then discarded.
+ */
+export function projectActivity(events: readonly unknown[], options: ProjectActivityOptions = {}): ActivityWindow {
+  const requested = options.window ?? DEFAULT_ACTIVITY_WINDOW;
+  const size = Number.isInteger(requested) && requested > 0 ? requested : DEFAULT_ACTIVITY_WINDOW;
+  const workingDirectory = options.workingDirectory;
+
+  const starts = new Map<string, PendingStart>();
+  const calls: ProjectedToolCall[] = [];
+  let commandCodeCalls = 0;
+  let ohMyPiCalls = 0;
+
+  for (const value of events) {
+    const event = nativeEvent(value);
+    if (!event) continue;
+    const type = String(event.type ?? "");
+    const id = eventCallId(event);
+    const name = eventToolName(event);
+
+    if (COMMAND_CODE_START_TYPES.has(type) || OH_MY_PI_START_TYPES.has(type)) {
+      if (!id) continue;
+      const args = eventArgs(event);
+      const pending = starts.get(id);
+      if (pending) {
+        // Command Code emits `tool_running` between `tool_queued` (which carries
+        // `input`) and `tool_completed` (which does not). The later event must
+        // not erase the arguments the queue captured.
+        if (!pending.args && args) pending.args = args;
+        if (!pending.toolName && name) pending.toolName = name;
+        continue;
+      }
+      if (!name) continue;
+      starts.set(id, {
+        toolName: name,
+        args,
+        source: OH_MY_PI_START_TYPES.has(type) ? "oh-my-pi" : "command-code",
+      });
+      continue;
+    }
+
+    if (!TOOL_END_TYPES.has(type) && !TOOL_BLOCK_TYPES.has(type)) continue;
+    const start = id ? starts.get(id) : undefined;
+    if (!start) continue;
+    starts.delete(id);
+
+    const toolName = start.toolName || name;
+    const kind = classifyKind(toolName);
+    const status = TOOL_BLOCK_TYPES.has(type)
+      ? { ok: false, error_class: "denied" as ErrorClass }
+      : projectStatus(event);
+    calls.push({
+      tool: toolName || UNKNOWN_TARGET,
+      kind,
+      target: projectTarget(start.args, kind, workingDirectory),
+      ok: status.ok,
+      error_class: status.error_class,
+    });
+    if (start.source === "command-code") commandCodeCalls += 1;
+    else ohMyPiCalls += 1;
+  }
+
+  return {
+    source: commandCodeCalls > 0 && commandCodeCalls >= ohMyPiCalls ? "command-code" : "oh-my-pi",
+    window: size,
+    generated_at: new Date().toISOString(),
+    calls: calls.slice(-size),
+  };
+}
+
+/** The repeatable identity of a call: tool, target and outcome, never its arguments. */
+function callSignature(call: ProjectedToolCall): string {
+  return `${call.tool}\u0000${call.target}\u0000${call.ok}\u0000${call.error_class}`;
+}
+
+/** Counts computed without a model: the probeable facts supervision can already see. */
+export function deterministicLoopSignals(window: ActivityWindow): DeterministicLoopSignals {
+  const calls = window.calls;
+
+  // The longest run of consecutive identical calls, counted as the repeats after the first.
+  let identicalRepeats = 0;
+  let run = 0;
+  let previous: string | undefined;
+  for (const call of calls) {
+    const signature = callSignature(call);
+    run = signature === previous ? run + 1 : 1;
+    previous = signature;
+    if (run - 1 > identicalRepeats) identicalRepeats = run - 1;
+  }
+
+  // Positions that step back to the state two calls earlier while differing from the one between.
+  let alternatingPairs = 0;
+  for (let index = 2; index < calls.length; index += 1) {
+    const current = callSignature(calls[index]);
+    if (current === callSignature(calls[index - 2]) && current !== callSignature(calls[index - 1])) {
+      alternatingPairs += 1;
+    }
+  }
+
+  // A search query or a path outside the workspace is a placeholder, not a target.
+  const targets = new Set<string>();
+  for (const call of calls) {
+    if (call.target !== PATTERN_TARGET && call.target !== OUTSIDE) targets.add(call.target);
+  }
+
+  return {
+    identical_repeats: identicalRepeats,
+    alternating_pairs: alternatingPairs,
+    distinct_targets: targets.size,
+  };
+}
+
+function noul(question: string, satisfied: string, unsatisfied: string): NoulQuestion {
+  return {
+    type: "noul",
+    instructions: `Judge only from the \`activity.calls\` array in the supplied state, which lists the most recent completed tool calls in order with the fields \`tool\`, \`kind\`, \`target\`, \`ok\` and \`error_class\`: ${question} Do not infer unrecorded evidence, and do not assume a check passed because a call is absent.`,
+    criteria: { true: satisfied, false: unsatisfied },
+  };
+}
+
+/**
+ * The fixed question set. Each Noul is atomic and names its evidence path, so
+ * the model judges the projection rather than any transcript behind it.
+ */
+export function loopProbeQuestions(): Record<LoopProbeAnswerKey, NoulQuestion> {
+  const retrying = noul(
+    "the same failing action is being retried repeatedly with only cosmetic changes.",
+    "`activity.calls` contains the same target, kind and error class failing more than once with no materially different attempt between them.",
+    "Repeated failing actions in `activity.calls` differ materially, or no failing action is repeated.",
+  );
+  const progressing = noul(
+    "the last calls produced a new file, a passing command or new information.",
+    "At least one of the most recent `activity.calls` wrote a file, reported `ok` with `error_class` `none`, or touched a target absent from earlier calls.",
+    "None of the most recent `activity.calls` produced a new file, a passing command or new information.",
+  );
+  const alternating = noul(
+    "the agent alternates between two states without converging.",
+    "`activity.calls` returns repeatedly to one earlier state after leaving it, without the sequence settling.",
+    "The sequence does not return repeatedly to an earlier state.",
+  );
+  return { retrying, progressing, alternating };
+}
+
+/** The provider state: the projected window re-copied field by field, so a caller cannot widen it by mutating the input. */
+export function serializeLoopProbeState(window: ActivityWindow): unknown {
+  return {
+    activity: {
+      source: window.source,
+      window: window.window,
+      generated_at: window.generated_at,
+      calls: window.calls.map(call => ({
+        tool: call.tool,
+        kind: call.kind,
+        target: call.target,
+        ok: call.ok,
+        error_class: call.error_class,
+      })),
+    },
+  };
+}
+
+/**
+ * One shadow-only semantic check on a projected window. The provider answer is
+ * returned alongside the deterministic signals and is not acted upon here: this
+ * slice wires the probe into nothing.
+ */
+export async function evaluateLoopProbe(
+  window: ActivityWindow,
+  options: EvaluateLoopProbeOptions = {},
+): Promise<LoopProbeResult> {
+  const signals = deterministicLoopSignals(window);
+  if (options.configured === false) return { kind: "disabled", signals };
+
+  if (window.calls.length < MIN_PROBE_CALLS) {
+    return { kind: "skipped", reason: "insufficient_activity", calls: window.calls.length, signals };
+  }
+
+  const questions = loopProbeQuestions() as Record<string, Question>;
+  const response = await evaluateSystemOne({
+    state: serializeLoopProbeState(window),
+    questions,
+    model: options.model,
+    apiKey: options.apiKey,
+    timeoutMs: options.timeoutMs,
+    fetch: options.fetch,
+    delay: options.delay,
+  });
+
+  if (response.kind !== "ok") return { ...response, signals };
+
+  const answers: LoopProbeAnswers = {};
+  for (const key of Object.keys(LOOP_PROBE_QUESTIONS) as LoopProbeAnswerKey[]) {
+    const answer = response.answers[LOOP_PROBE_QUESTIONS[key]];
+    if (answer) answers[key] = answer;
+  }
+  return { ...response, answers, signals };
+}
diff --git a/src/harness/mcp-server.ts b/src/harness/mcp-server.ts
new file mode 100644
index 0000000..a0d3a53
--- /dev/null
+++ b/src/harness/mcp-server.ts
@@ -0,0 +1,490 @@
+import { EventEmitter, once } from "node:events";
+import { stat } from "node:fs/promises";
+import path from "node:path";
+import { StringDecoder } from "node:string_decoder";
+import { z } from "zod";
+import { indexRuns, paretoFrontier, summarizeRuns, type RunGroupSummary, type RunRecord } from "./experience-store.js";
+import { assertSafeMissionId, assertWithinRoot } from "./mission.js";
+import { assertValidRunId } from "./run-id.js";
+import { getStatusJson } from "./status-json.js";
+
+/**
+ * Read-only MCP (Model Context Protocol) server face over the run store.
+ *
+ * JSON-RPC 2.0 over newline-delimited JSON. This slice exposes what the
+ * harness already knows: project status, indexed runs, run groups, and which
+ * artifacts a run produced. No tool here starts a runtime, writes a file,
+ * renders a prompt, or spends anything.
+ *
+ * Hosts are mid-migration, so both protocol generations are served:
+ *   - `2026-07-28` — stateless. `server/discover`, a per-request protocol
+ *     version in `params._meta["io.modelcontextprotocol/protocolVersion"]`,
+ *     `resultType` on every result, and cache hints on list results.
+ *   - `2025-11-25` — handshake. `initialize`, `notifications/initialized`, `ping`.
+ *
+ * Confidentiality is treated as a protocol property, not a nicety: values read
+ * from disk pass through `redactValue`, mission and run ids are validated
+ * before they are ever joined into a path, error text never echoes a
+ * caller-supplied value back, and every path a result mentions is relative to
+ * the project root with forward slashes.
+ */
+
+/** Newest first: the order a negotiating host should prefer. */
+export const MCP_PROTOCOL_VERSIONS = ["2026-07-28", "2025-11-25"] as const;
+
+const LATEST_LEGACY_PROTOCOL_VERSION = MCP_PROTOCOL_VERSIONS[MCP_PROTOCOL_VERSIONS.length - 1];
+const PROTOCOL_VERSION_META_KEY = "io.modelcontextprotocol/protocolVersion";
+const SERVER_INFO_META_KEY = "io.modelcontextprotocol/serverInfo";
+const SERVER_NAME = "ultimate-harness";
+const LIST_TTL_MS = 60_000;
+const CACHE_SCOPE = "private";
+
+const PARSE_ERROR = -32700;
+const INVALID_REQUEST = -32600;
+const METHOD_NOT_FOUND = -32601;
+const INVALID_PARAMS = -32602;
+
+export type McpServerOptions = {
+  /** Project root the server reads. Never returned as-is. */
+  root: string;
+  /** Package version advertised in serverInfo and in `uh_status`. */
+  version: string;
+};
+
+type RequestId = string | number;
+type JsonRpcId = RequestId | null;
+
+export type JsonRpcErrorObject = { code: number; message: string; data?: Record<string, unknown> };
+
+export type JsonRpcResponse =
+  | { jsonrpc: "2.0"; id: JsonRpcId; result: Record<string, unknown> }
+  | { jsonrpc: "2.0"; id: JsonRpcId; error: JsonRpcErrorObject };
+
+export type McpServer = {
+  /** Handles one parsed request. Returns `undefined` for notifications. */
+  handle(message: unknown): Promise<JsonRpcResponse | undefined>;
+};
+
+/** A tool-level failure: reported inside a `tools/call` result as `isError`. */
+class ToolFailure extends Error {}
+
+const GROUP_BY_VALUES = ["runtime", "model", "workflow_profile", "stop_code"] as const;
+
+const StatusArgsSchema = z.object({}).strict();
+const RunsArgsSchema = z.object({
+  mission_id: z.string().min(1).optional(),
+  group_by: z.enum(GROUP_BY_VALUES).optional(),
+}).strict();
+const RunArgsSchema = z.object({
+  mission_id: z.string().min(1),
+  run_id: z.string().min(1),
+}).strict();
+
+type RunsArgs = z.infer<typeof RunsArgsSchema>;
+type RunArgs = z.infer<typeof RunArgsSchema>;
+
+/** Canonical per-run artifact filenames, in ascending byte order. */
+const RUN_ARTIFACT_NAMES = [
+  "diff.patch",
+  "events.ndjson",
+  "prompt.md",
+  "runtime-control.json",
+  "runtime-final.txt",
+  "runtime-recovery.json",
+  "runtime-session.yaml",
+  "runtime-result.yaml",
+  "runtime.stderr.log",
+  "runtime.stdout.log",
+  "verification.yaml",
+] as const;
+
+/**
+ * Every field of `RunRecord`, listed so absent values render as `null`
+ * instead of being dropped or defaulted to 0.
+ */
+const RUN_RECORD_FIELDS = [
+  "mission_id", "run_id", "runtime", "provider", "model", "workflow_profile", "status",
+  "stop_code", "stop_reason", "started_at", "finished_at", "duration_ms", "turns", "denials",
+  "input_tokens", "output_tokens", "cache_read_tokens", "cache_write_tokens", "cost_usd",
+  "cost_basis", "resumed_from", "verification_status", "peak_memory_bytes",
+] as const satisfies readonly (keyof RunRecord)[];
+
+const RUN_GROUP_FIELDS = [
+  "key", "runs", "passed", "success_rate", "known_cost_runs", "total_cost_usd",
+  "mean_cost_usd", "mean_duration_ms", "cache_read_share",
+] as const satisfies readonly (keyof RunGroupSummary)[];
+
+type Tool = {
+  name: string;
+  description: string;
+  /** Deterministic usage hint, shown in place of any caller-supplied value. */
+  usage: string;
+  inputSchema: Record<string, unknown>;
+  schema: z.ZodTypeAny;
+  execute: (args: unknown) => Promise<unknown>;
+};
+
+function publicRecord(record: RunRecord): Record<string, string | number | null> {
+  const view: Record<string, string | number | null> = {};
+  for (const field of RUN_RECORD_FIELDS) {
+    const value = record[field];
+    view[field] = value === undefined ? null : value;
+  }
+  return view;
+}
+
+function publicGroup(group: RunGroupSummary): Record<string, string | number | null> {
+  const view: Record<string, string | number | null> = {};
+  for (const field of RUN_GROUP_FIELDS) {
+    const value = group[field];
+    view[field] = value === undefined ? null : value;
+  }
+  return view;
+}
+
+/** Unknown group keys sort last; otherwise ascending by key. */
+function compareGroups(a: RunGroupSummary, b: RunGroupSummary): number {
+  if (a.key === undefined && b.key === undefined) return 0;
+  if (a.key === undefined) return 1;
+  if (b.key === undefined) return -1;
+  return a.key < b.key ? -1 : a.key > b.key ? 1 : 0;
+}
+
+function sortRecords(records: RunRecord[]): RunRecord[] {
+  return [...records].sort((a, b) => {
+    if (a.mission_id !== b.mission_id) return a.mission_id < b.mission_id ? -1 : 1;
+    if (a.run_id !== b.run_id) return a.run_id < b.run_id ? -1 : 1;
+    return 0;
+  });
+}
+
+/**
+ * Validated here, never joined into a path before this returns. Failures name
+ * the field and the rule, never the value that broke it.
+ */
+function requireSafeId(toolName: string, field: "mission_id" | "run_id", value: string | undefined): string | undefined {
+  if (value === undefined) return undefined;
+  try {
+    assertSafeMissionId(value);
+    if (field === "run_id") assertValidRunId(value);
+  } catch {
+    throw new ToolFailure(`${toolName}: ${field} must be a single safe path segment — letters, numbers, dots, underscores and hyphens, no separators, no "." or "..".`);
+  }
+  return value;
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function isSupportedVersion(version: string): boolean {
+  return (MCP_PROTOCOL_VERSIONS as readonly string[]).includes(version);
+}
+
+function extractId(value: unknown): JsonRpcId {
+  if (!isRecord(value)) return null;
+  if (typeof value.id === "string" || typeof value.id === "number") return value.id;
+  return null;
+}
+
+function escapeRegExp(value: string): string {
+  return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+}
+
+/** Absolute project paths, in every separator spelling this platform allows. */
+function rootNeedles(root: string): RegExp[] {
+  const resolved = path.resolve(root);
+  const variants = new Set<string>();
+  for (const base of [resolved, resolved.replace(/\\/g, "/"), resolved.replace(/\//g, path.sep)]) {
+    variants.add(base);
+    for (const separator of [path.sep, "/"]) {
+      variants.add(base.endsWith(separator) ? base : `${base}${separator}`);
+    }
+  }
+  const flags = process.platform === "win32" ? "gi" : "g";
+  return [...variants]
+    .filter((variant) => variant.length > 1)
+    .sort((a, b) => b.length - a.length)
+    .map((variant) => new RegExp(escapeRegExp(variant), flags));
+}
+
+/** Replaces any occurrence of the project root, or a path beneath it, with `.`. */
+function redactValue(value: string, root: string, needles: RegExp[]): string {
+  let redacted = value;
+  for (const needle of needles) redacted = redacted.replace(needle, ".");
+  return redacted;
+}
+
+export function createMcpServer(options: McpServerOptions): McpServer {
+  const root = path.resolve(options.root);
+  const needles = rootNeedles(root);
+  const serverInfo = { name: SERVER_NAME, version: options.version };
+  const capabilities = { tools: {} };
+  const resultBase = (): Record<string, unknown> => ({ resultType: "complete" });
+
+  /** Deep-copies a result, redacting absolute paths and rootifying `project_root`. */
+  function redact(value: unknown): unknown {
+    if (typeof value === "string") return redactValue(value, root, needles);
+    if (Array.isArray(value)) return value.map((item) => redact(item));
+    if (isRecord(value)) {
+      const view: Record<string, unknown> = {};
+      for (const [key, item] of Object.entries(value)) {
+        view[key] = key === "project_root" ? "." : redact(item);
+      }
+      return view;
+    }
+    return value;
+  }
+
+  /** Root-relative, forward-slash path. The only path shape this server emits. */
+  function relativeToRoot(target: string): string {
+    return path.relative(root, target).split(path.sep).join("/");
+  }
+
+  function runDirectory(missionId: string, runId: string): string {
+    try {
+      return assertWithinRoot(path.join(root, ".harness", "missions", missionId, "runs", runId), root, "run directory");
+    } catch {
+      throw new ToolFailure("uh_run: the requested run was not found in this project.");
+    }
+  }
+
+  async function listRuns(rawArgs: unknown): Promise<unknown> {
+    const args = rawArgs as RunsArgs;
+    const records = await indexRuns(root, args.mission_id === undefined ? {} : { missionId: args.mission_id });
+    const payload: Record<string, unknown> = {
+      runs: sortRecords(records).map(publicRecord),
+      group_by: args.group_by ?? null,
+    };
+    if (args.group_by === undefined) return redact(payload);
+    const groups = summarizeRuns(records, args.group_by).sort(compareGroups);
+    payload.groups = groups.map(publicGroup);
+    payload.pareto = paretoFrontier(groups).sort(compareGroups).map(publicGroup);
+    return redact(payload);
+  }
+
+  async function readRun(rawArgs: unknown): Promise<unknown> {
+    const args = rawArgs as RunArgs;
+    const records = await indexRuns(root, { missionId: args.mission_id });
+    const record = records.find((candidate) => candidate.run_id === args.run_id);
+    if (!record) throw new ToolFailure("uh_run: the requested run was not found in this project.");
+    const runDir = runDirectory(args.mission_id, args.run_id);
+    const artifacts: string[] = [];
+    for (const name of RUN_ARTIFACT_NAMES) {
+      const candidate = path.join(runDir, name);
+      try {
+        if ((await stat(candidate)).isFile()) artifacts.push(relativeToRoot(candidate));
+      } catch {
+        // Artifacts that were never written stay absent.
+      }
+    }
+    return redact({ run: publicRecord(record), artifacts });
+  }
+
+  async function readStatus(): Promise<unknown> {
+    return redact(await getStatusJson(root, { packageVersion: options.version }));
+  }
+
+  const statusTool: Tool = {
+    name: "uh_status",
+    description: "Read the Ultimate Harness project status document — the same object `uh status --json` prints: adapter inventory, mission counts by status, recent runs, drift counts and acceptance counts. Takes no arguments.",
+    usage: "accepts no arguments.",
+    inputSchema: { type: "object", properties: {}, required: [], additionalProperties: false },
+    schema: StatusArgsSchema,
+    execute: () => readStatus(),
+  };
+  const runsTool: Tool = {
+    name: "uh_runs",
+    description: "List every run indexed from .harness/missions, optionally filtered to one mission and grouped by runtime, model, workflow_profile or stop_code. Grouped results add success rate, known-cost totals, and the Pareto frontier of success rate against mean cost. Read-only.",
+    usage: "accepts mission_id and group_by only; group_by must be runtime, model, workflow_profile or stop_code.",
+    inputSchema: {
+      type: "object",
+      properties: {
+        mission_id: { type: "string", minLength: 1, description: "Restrict the listing to one mission id." },
+        group_by: { type: "string", enum: [...GROUP_BY_VALUES], description: "Add grouped summaries and the Pareto frontier for this dimension." },
+      },
+      required: [],
+      additionalProperties: false,
+    },
+    schema: RunsArgsSchema,
+    execute: listRuns,
+  };
+  const runTool: Tool = {
+    name: "uh_run",
+    description: "Read one run record by mission id and run id, plus the root-relative paths of the artifacts that run actually produced. Artifact contents are never returned, only which files exist. Read-only.",
+    usage: "requires mission_id and run_id, and accepts nothing else.",
+    inputSchema: {
+      type: "object",
+      properties: {
+        mission_id: { type: "string", minLength: 1, description: "Mission id owning the run." },
+        run_id: { type: "string", minLength: 1, description: "Run id, as listed by uh_runs." },
+      },
+      required: ["mission_id", "run_id"],
+      additionalProperties: false,
+    },
+    schema: RunArgsSchema,
+    execute: readRun,
+  };
+
+  /** Fixed order: whole-project view, then the index, then one record. */
+  const tools: Tool[] = [statusTool, runsTool, runTool];
+
+  async function callTool(params: Record<string, unknown>): Promise<Record<string, unknown>> {
+    const name = typeof params.name === "string" ? params.name : "";
+    const tool = tools.find((candidate) => candidate.name === name);
+    if (!tool) {
+      return {
+        ...resultBase(),
+        isError: true,
+        content: [{ type: "text", text: `Unknown tool. Available tools: ${tools.map((candidate) => candidate.name).join(", ")}.` }],
+      };
+    }
+    const raw = params.arguments === undefined ? {} : params.arguments;
+    try {
+      if (!isRecord(raw)) throw new ToolFailure(`${tool.name}: ${tool.usage}`);
+      const parsed = tool.schema.safeParse(raw);
+      if (!parsed.success) throw new ToolFailure(`${tool.name}: ${tool.usage}`);
+      const safeArgs = parsed.data as Record<string, unknown>;
+      requireSafeId(tool.name, "mission_id", typeof safeArgs.mission_id === "string" ? safeArgs.mission_id : undefined);
+      requireSafeId(tool.name, "run_id", typeof safeArgs.run_id === "string" ? safeArgs.run_id : undefined);
+      const payload = await tool.execute(parsed.data);
+      return {
+        ...resultBase(),
+        content: [{ type: "text", text: JSON.stringify(payload, null, 2) }],
+        structuredContent: payload,
+      };
+    } catch (error) {
+      const message = error instanceof ToolFailure ? error.message : `${tool.name}: the request could not be completed.`;
+      return { ...resultBase(), isError: true, content: [{ type: "text", text: redactValue(message, root, needles) }] };
+    }
+  }
+
+  async function handle(message: unknown): Promise<JsonRpcResponse | undefined> {
+    if (!isRecord(message) || message.jsonrpc !== "2.0" || typeof message.method !== "string") {
+      return { jsonrpc: "2.0", id: extractId(message), error: { code: INVALID_REQUEST, message: "Invalid Request: expected a JSON-RPC 2.0 request object with a string method." } };
+    }
+    const id = extractId(message);
+    if (id === null || message.method.startsWith("notifications/")) return undefined;
+
+    const requested = requestedProtocolVersion(message);
+    if (requested !== undefined && !isSupportedVersion(requested)) {
+      return {
+        jsonrpc: "2.0",
+        id,
+        error: {
+          code: INVALID_PARAMS,
+          message: `Unsupported protocol version. Supported versions: ${MCP_PROTOCOL_VERSIONS.join(", ")}.`,
+          data: { supported: [...MCP_PROTOCOL_VERSIONS], requested },
+        },
+      };
+    }
+
+    switch (message.method) {
+      case "server/discover":
+        return {
+          jsonrpc: "2.0",
+          id,
+          result: {
+            ...resultBase(),
+            supportedVersions: [...MCP_PROTOCOL_VERSIONS],
+            capabilities,
+            serverInfo,
+            _meta: { [SERVER_INFO_META_KEY]: serverInfo },
+            ttlMs: LIST_TTL_MS,
+            cacheScope: CACHE_SCOPE,
+          },
+        };
+      case "initialize": {
+        const params = isRecord(message.params) ? message.params : {};
+        const requestedLegacy = typeof params.protocolVersion === "string" && isSupportedVersion(params.protocolVersion)
+          ? params.protocolVersion
+          : LATEST_LEGACY_PROTOCOL_VERSION;
+        return { jsonrpc: "2.0", id, result: { ...resultBase(), protocolVersion: requestedLegacy, capabilities, serverInfo } };
+      }
+      case "ping":
+        return { jsonrpc: "2.0", id, result: resultBase() };
+      case "tools/list":
+        return {
+          jsonrpc: "2.0",
+          id,
+          result: {
+            ...resultBase(),
+            tools: tools.map((tool) => ({ name: tool.name, description: tool.description, inputSchema: tool.inputSchema })),
+            ttlMs: LIST_TTL_MS,
+            cacheScope: CACHE_SCOPE,
+          },
+        };
+      case "tools/call":
+        if (!isRecord(message.params)) {
+          return { jsonrpc: "2.0", id, error: { code: INVALID_PARAMS, message: "tools/call params must be an object with name and optional arguments." } };
+        }
+        return { jsonrpc: "2.0", id, result: await callTool(message.params) };
+      default:
+        return {
+          jsonrpc: "2.0",
+          id,
+          error: { code: METHOD_NOT_FOUND, message: `Method not found. This server implements: server/discover, initialize, ping, tools/list, tools/call.` },
+        };
+    }
+  }
+
+  return { handle };
+}
+
+/** Modern clients declare the version in `params._meta`; a few put `_meta` on the request. */
+function requestedProtocolVersion(message: Record<string, unknown>): string | undefined {
+  const containers = [isRecord(message.params) ? message.params._meta : undefined, message._meta];
+  for (const container of containers) {
+    if (!isRecord(container)) continue;
+    const version = container[PROTOCOL_VERSION_META_KEY];
+    if (typeof version === "string") return version;
+  }
+  return undefined;
+}
+
+/**
+ * Serves newline-delimited JSON-RPC over the given streams. Resolves when the
+ * input ends; the caller owns closing the streams.
+ */
+export async function serveMcpStdio(
+  options: McpServerOptions,
+  input: NodeJS.ReadableStream,
+  output: NodeJS.WritableStream,
+): Promise<void> {
+  const server = createMcpServer(options);
+  const decoder = new StringDecoder("utf8");
+  let pending = "";
+
+  async function writeLine(line: string): Promise<void> {
+    if (!output.write(line.endsWith("\n") ? line : `${line}\n`)) {
+      await once(output as unknown as EventEmitter, "drain");
+    }
+  }
+
+  async function handleLine(line: string): Promise<void> {
+    const trimmed = line.trim();
+    if (trimmed === "") return;
+    let parsed: unknown;
+    try {
+      parsed = JSON.parse(trimmed);
+    } catch {
+      await writeLine(JSON.stringify({ jsonrpc: "2.0", id: null, error: { code: PARSE_ERROR, message: "Parse error: the line was not valid JSON." } }));
+      return;
+    }
+    const response = await server.handle(parsed);
+    if (response !== undefined) await writeLine(JSON.stringify(response));
+  }
+
+  for await (const chunk of input as unknown as AsyncIterable<string | Uint8Array>) {
+    pending += typeof chunk === "string" ? chunk : decoder.write(Buffer.from(chunk));
+    let boundary = pending.indexOf("\n");
+    while (boundary >= 0) {
+      const line = pending.slice(0, boundary);
+      pending = pending.slice(boundary + 1);
+      await handleLine(line.replace(/\r$/, ""));
+      boundary = pending.indexOf("\n");
+    }
+  }
+  const tail = pending + decoder.end();
+  if (tail.trim() !== "") await handleLine(tail);
+}
diff --git a/src/harness/mission-cancel.ts b/src/harness/mission-cancel.ts
index c2361a5..b54aa5b 100644
--- a/src/harness/mission-cancel.ts
+++ b/src/harness/mission-cancel.ts
@@ -1,3 +1,15 @@
+import { readFile, writeFile, lstat } from "node:fs/promises";
+import path from "node:path";
+import { RuntimeControlSchema, RuntimeCancelRequestSchema, type RuntimeControl } from "../schema/runtime-control.js";
+import { assertSafeMissionId } from "./mission.js";
+import { assertValidRunId } from "./run-id.js";
+import { getMissionArtifactContext, assertWritableArtifact } from "../adapters/_artifact-context.js";
+import { setTimeout as delay } from "node:timers/promises";
+import { parse } from "yaml";
+import { RuntimeSessionSchema } from "../schema/artifacts.js";
+import { reconcileRuntimeSettlement } from "./runtime-settlement.js";
+import { discoverRuns, findProjectRoot, type LiveRunRecord } from "./live-runs.js";
+
 /** UH-95 — cancel an in-flight mission run via the Hermes plugin API. */
 
 export interface MissionCancelResult {
@@ -55,3 +67,128 @@ export async function cancelMissionRunViaPlugin(
   }
   return { ok: body.ok === true, status: body.status ?? "cancelled" };
 }
+
+/** The number of path segments below an artifact root its control file sits at. */
+const CONTROL_PATH_SEGMENTS = 6;
+
+function controlSegments(missionId: string, runId: string): string[] {
+  return [".harness", "missions", missionId, "runs", runId, "runtime-control.json"];
+}
+
+/**
+ * The artifact root that owns a discovered run: the directory the run's
+ * `runtime-control.json` sits `<.harness>/missions/<m>/runs/<r>/` below. For a
+ * team worker that is its own worker tree, never the project root.
+ */
+export function runRootForRecord(projectRoot: string, record: LiveRunRecord): string {
+  const segments = record.control_path.split("/").filter((segment) => segment.length > 0);
+  const expected = controlSegments(record.mission_id, record.run_id);
+  const tail = segments.slice(-CONTROL_PATH_SEGMENTS);
+  const matchesShape = tail.length === CONTROL_PATH_SEGMENTS
+    && tail.every((segment, index) => segment === expected[index]);
+  if (!matchesShape) return path.resolve(projectRoot, record.artifact_root);
+  const prefix = segments.slice(0, -CONTROL_PATH_SEGMENTS).join("/");
+  return prefix.length === 0 ? path.resolve(projectRoot) : path.resolve(projectRoot, prefix);
+}
+
+/**
+ * Resolve the root a run's cancellation must be written under. The direct
+ * `<root>/.harness/missions/<m>/runs/<r>/` form is tried first; when it is not
+ * there, the run is discovered from the project root through the live-run
+ * registry and the bounded harness scan, so a team worker's artifact root is
+ * never something the operator has to know.
+ */
+export async function resolveRunRoot(root: string, missionId: string, runId: string): Promise<string> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  const direct = path.join(root, ...controlSegments(missionId, runId));
+  try {
+    await lstat(direct);
+    return path.resolve(root);
+  } catch (error) {
+    if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
+  }
+  const projectRoot = await findProjectRoot(root) ?? path.resolve(root);
+  for (const record of await discoverRuns(projectRoot, { includeSettled: true, persist: false })) {
+    if (record.run_id !== runId) continue;
+    if (record.mission_id !== missionId && record.team?.mission_id !== missionId) continue;
+    const candidate = runRootForRecord(projectRoot, record);
+    try {
+      await lstat(path.join(candidate, ...controlSegments(missionId, runId)));
+      return candidate;
+    } catch {
+      // A registry entry whose control file moved on is not a cancellation target.
+    }
+  }
+  throw new MissionCancelError(
+    `run ${runId} of mission ${missionId} has no runtime-control.json discoverable from ${projectRoot}`,
+    { status: 0, code: "unknown_run" },
+  );
+}
+
+/** Request cancellation from the owning CLI; no plugin, PID guessing or unrelated resource sweep. */
+export async function cancelLocalMissionRun(root: string, missionId: string, runId: string): Promise<MissionCancelResult> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  // A team worker's control file lives under its own artifact root, so the
+  // root is resolved before anything is read or written.
+  const runRoot = await resolveRunRoot(root, missionId, runId);
+  const directory = path.join(runRoot, ".harness", "missions", missionId, "runs", runId);
+  const controlPath = path.join(directory, "runtime-control.json");
+  // Unknown targets must not allocate a new attempt merely because cancellation was requested.
+  await lstat(controlPath);
+  const artifacts = await getMissionArtifactContext(runRoot, path.join(runRoot, ".harness", "missions", missionId, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Mission artifact context unavailable");
+  const readControl = async (): Promise<RuntimeControl | undefined> => {
+    await assertWritableArtifact(artifacts.missionDir, controlPath);
+    let control: RuntimeControl;
+    try {
+      control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8")));
+    } catch {
+      return undefined;
+    }
+    if (control.mission_id !== missionId || control.run_id !== runId) throw new Error("Runtime control identity mismatch");
+    return control;
+  };
+  const canonicalSettled = async (): Promise<boolean> => {
+    await assertWritableArtifact(artifacts.missionDir, artifacts.runtimeSessionPath);
+    try {
+      const session = RuntimeSessionSchema.parse(parse(await readFile(artifacts.runtimeSessionPath, "utf8")));
+      if (session.mission_id !== missionId) throw new Error("Runtime session identity mismatch");
+      return session.status === "succeeded" || session.status === "failed";
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code === "ENOENT") return true;
+      throw error;
+    }
+  };
+  const deadline = Date.now() + 10_000;
+  const requestPath = path.join(directory, "cancel-request.json");
+  let requestWritten = false;
+  while (Date.now() < deadline) {
+    const control = await readControl();
+    if (!control) {
+      await delay(100);
+      continue;
+    }
+    if (control.stop_code === "controller_lost") await reconcileRuntimeSettlement(runRoot, missionId, runId);
+    if (control.settlement_confirmed === false) throw new Error("Owned process-tree settlement is not confirmed");
+    if (control.status !== "running" && await canonicalSettled()) return { ok: true, status: control.status };
+    if (control.status === "running" && !requestWritten) {
+      await assertWritableArtifact(artifacts.missionDir, requestPath);
+      try {
+        await writeFile(requestPath, JSON.stringify(RuntimeCancelRequestSchema.parse({
+          schema_version: "uh.runtime-cancel-request.v0", mission_id: missionId, run_id: runId,
+          requested_at: new Date().toISOString(),
+        })), { encoding: "utf8", flag: "wx" });
+      } catch (error) {
+        if ((error as NodeJS.ErrnoException).code !== "EEXIST") throw error;
+        const request = RuntimeCancelRequestSchema.parse(JSON.parse(await readFile(requestPath, "utf8")));
+        if (request.mission_id !== missionId || request.run_id !== runId) throw new Error("Cancellation request identity mismatch");
+      }
+      requestWritten = true;
+    }
+    if (Date.now() - Date.parse(control.heartbeat_at) > 10_000) throw new Error("Runtime controller heartbeat is stale; cancellation is not confirmed");
+    await delay(100);
+  }
+  throw new Error("Cancellation requested but runtime settlement was not observed");
+}
diff --git a/src/harness/native-tool-result.ts b/src/harness/native-tool-result.ts
new file mode 100644
index 0000000..295eee4
--- /dev/null
+++ b/src/harness/native-tool-result.ts
@@ -0,0 +1,43 @@
+type Event = Record<string, unknown>;
+
+const record = (value: unknown): Event | undefined =>
+  value !== null && typeof value === "object" && !Array.isArray(value) ? value as Event : undefined;
+
+/** A Command Code shell result that carries no error field opens with this line. */
+const EXIT_CODE_LINE = /^Exit code:[ \t]*(-?\d+)[ \t]*(?:\r?\n|$)/;
+
+export interface NativeToolFailure {
+  failed: boolean;
+  exit_code?: number;
+  /** Where the verdict came from: a structured field, the result text, or nothing. */
+  source: "field" | "text" | "none";
+}
+
+/**
+ * Whether a native tool-completion event reports a failure, across runtime
+ * families. Structured error and exit fields decide when a runtime provides
+ * them (oh-my-pi, Claude-derived events); otherwise a leading
+ * `Exit code: <n>` line in Command Code text result blocks decides, where a
+ * non-zero n is a failure. Unknown shapes are not failures.
+ */
+export function nativeToolFailure(event: Event): NativeToolFailure {
+  const result = record(event.result);
+  const exitCode = typeof result?.exitCode === "number" ? result.exitCode
+    : typeof result?.exit_code === "number" ? result.exit_code
+    : undefined;
+  if (typeof event.isError === "boolean" || typeof result?.isError === "boolean" ||
+    typeof result?.is_error === "boolean" || exitCode !== undefined) {
+    const failed = event.isError === true || result?.isError === true || result?.is_error === true ||
+      (exitCode !== undefined && exitCode !== 0);
+    return { failed, ...(exitCode === undefined ? {} : { exit_code: exitCode }), source: "field" };
+  }
+  for (const block of Array.isArray(event.result) ? event.result : []) {
+    const text = record(block)?.text;
+    if (typeof text !== "string") continue;
+    const match = EXIT_CODE_LINE.exec(text.replace(/^[ \t]+/, ""));
+    if (!match) continue;
+    const code = Number(match[1]);
+    return { failed: code !== 0, exit_code: code, source: "text" };
+  }
+  return { failed: false, source: "none" };
+}
diff --git a/src/harness/otel-export.ts b/src/harness/otel-export.ts
new file mode 100644
index 0000000..3ad296f
--- /dev/null
+++ b/src/harness/otel-export.ts
@@ -0,0 +1,419 @@
+import { readFileSync, existsSync } from "node:fs";
+import { join } from "node:path";
+import { createHash } from "node:crypto";
+import { parse as parseYaml } from "yaml";
+
+const VERSION = "0.11.0";
+
+export interface OtlpAttribute {
+  key: string;
+  value: { stringValue?: string; intValue?: number; doubleValue?: number; boolValue?: boolean };
+}
+
+export interface OtlpSpan {
+  traceId: string;
+  spanId: string;
+  parentId?: string;
+  name: string;
+  kind: number;
+  startTimeUnixNano: string;
+  endTimeUnixNano: string;
+  attributes: OtlpAttribute[];
+  status: { code: number; message?: string };
+}
+
+export interface OtlpScopeSpans {
+  scope: { name: string; version: string };
+  spans: OtlpSpan[];
+}
+
+export interface OtlpTraceExport {
+  resourceSpans: Array<{
+    resource: { attributes: OtlpAttribute[] };
+    scopeSpans: OtlpScopeSpans[];
+  }>;
+}
+
+interface RunResult {
+  runtime?: string;
+  model?: string;
+  provider?: string;
+  status?: string;
+  started_at?: string;
+  finished_at?: string;
+  stop_code?: string;
+  usage?: {
+    input_tokens?: number;
+    output_tokens?: number;
+    cache_read_tokens?: number;
+    cache_write_tokens?: number;
+    total_tokens?: number;
+  };
+  cost_usd?: number;
+  cost_basis?: string;
+  errors?: string[];
+}
+
+interface RunControl {
+  session_id?: string;
+  status?: string;
+  stop_code?: string;
+  turns?: number;
+  denials?: number;
+  cost_usd?: number;
+  cost_basis?: string;
+  mission_id?: string;
+}
+
+interface StreamedEvent {
+  type: string;
+  message?: { role?: string; model?: string; provider?: string; usage?: Record<string, unknown> };
+  toolCallId?: string;
+  toolName?: string;
+  tool_call_id?: string;
+  input?: Record<string, unknown>;
+  args?: Record<string, unknown>;
+  isError?: boolean;
+  result?: Record<string, unknown>;
+  timestamp?: string;
+}
+
+const DELTA_TYPES = new Set([
+  "message_update",
+  "tool_execution_update",
+  "tool_stream_update",
+  "thinking_delta",
+  "text_delta",
+]);
+
+const TOOL_START_TYPES = new Set(["tool_queued", "tool_execution_start", "tool_running"]);
+const TOOL_END_TYPES = new Set(["tool_execution_end", "tool_completed"]);
+
+function sha256Hex(input: string): string {
+  return createHash("sha256").update(input).digest("hex");
+}
+
+function deriveSpanId(runId: string, counter: number): string {
+  return sha256Hex(`${runId}:span:${counter}`).slice(0, 16);
+}
+
+function deriveTraceId(runId: string): string {
+  return sha256Hex(`${runId}:trace`).slice(0, 32);
+}
+
+function tsToNano(ts: string | undefined, fallback: string): string {
+  if (!ts) return fallback;
+  try {
+    const ms = new Date(ts).getTime();
+    return String(BigInt(ms) * 1_000_000n);
+  } catch {
+    return fallback;
+  }
+}
+
+function strAttr(key: string, value: string): OtlpAttribute {
+  return { key, value: { stringValue: value } };
+}
+
+function intAttr(key: string, value: number): OtlpAttribute {
+  return { key, value: { intValue: value } };
+}
+
+function doubleAttr(key: string, value: number): OtlpAttribute {
+  return { key, value: { doubleValue: value } };
+}
+
+function parseEvents(eventsPath: string): StreamedEvent[] {
+  if (!existsSync(eventsPath)) return [];
+  const raw = readFileSync(eventsPath, "utf-8");
+  const events: StreamedEvent[] = [];
+  for (const line of raw.split("\n")) {
+    const trimmed = line.trim();
+    if (!trimmed) continue;
+    try {
+      events.push(JSON.parse(trimmed) as StreamedEvent);
+    } catch {
+      // skip unparseable lines
+    }
+  }
+  return events;
+}
+
+function readResult(runDir: string): RunResult {
+  const resultPath = join(runDir, "runtime-result.yaml");
+  if (!existsSync(resultPath)) return {};
+  try {
+    return JSON.parse(JSON.stringify(parseYaml(readFileSync(resultPath, "utf-8")))) as RunResult;
+  } catch {
+    return {};
+  }
+}
+
+function readControl(runDir: string): RunControl {
+  const controlPath = join(runDir, "runtime-control.json");
+  if (!existsSync(controlPath)) return {};
+  try {
+    return JSON.parse(readFileSync(controlPath, "utf-8")) as RunControl;
+  } catch {
+    return {};
+  }
+}
+
+function extractToolTarget(event: StreamedEvent): string | undefined {
+  const input = (event.input ?? event.args) as Record<string, unknown> | undefined;
+  if (!input) return undefined;
+  if (typeof input.command === "string") return input.command.slice(0, 120);
+  if (typeof input.file_path === "string") return input.file_path;
+  if (typeof input.path === "string") return input.path;
+  if (typeof input.filePath === "string") return input.filePath;
+  return undefined;
+}
+
+function extractUsage(msg: Record<string, unknown> | undefined): {
+  input?: number;
+  output?: number;
+  cacheRead?: number;
+  cacheWrite?: number;
+} {
+  if (!msg?.usage || typeof msg.usage !== "object") return {};
+  const u = msg.usage as Record<string, unknown>;
+  const input = typeof u.input === "number" ? u.input : typeof u.prompt_tokens === "number" ? u.prompt_tokens : typeof u.inputTokens === "number" ? u.inputTokens : undefined;
+  const output = typeof u.output === "number" ? u.output : typeof u.completion_tokens === "number" ? u.completion_tokens : typeof u.outputTokens === "number" ? u.outputTokens : undefined;
+  const cacheRead = typeof u.cacheRead === "number" ? u.cacheRead : typeof u.cache_read_tokens === "number" ? u.cache_read_tokens : typeof u.cacheReadTokens === "number" ? u.cacheReadTokens : undefined;
+  const cacheWrite = typeof u.cacheWrite === "number" ? u.cacheWrite : typeof u.cache_creation_input_tokens === "number" ? u.cache_creation_input_tokens : typeof u.cacheWriteTokens === "number" ? u.cacheWriteTokens : undefined;
+  return { input, output, cacheRead, cacheWrite };
+}
+
+interface ToolSpanInfo {
+  toolCallId: string;
+  toolName: string;
+  startTimeNs: string;
+  endTimeNs: string;
+  isError: boolean;
+  unfinished?: boolean;
+  target?: string;
+}
+
+export async function exportRunToOtlp(
+  runDir: string,
+  options?: { includeToolTargets?: boolean },
+): Promise<OtlpTraceExport> {
+  if (!existsSync(runDir)) throw new Error(`Run directory does not exist: ${runDir}`);
+
+  const result = readResult(runDir);
+  const control = readControl(runDir);
+  const events = parseEvents(join(runDir, "events.ndjson"));
+
+  const runtime = result.runtime ?? control.status ?? "unknown";
+  const runId = control.status !== undefined ? `${runDir}` : runIdFromDir(runDir);
+  const traceId = deriveTraceId(runId);
+  const rootSpanId = deriveSpanId(runId, 0);
+  let spanCounter = 0;
+
+  const startedAt = result.started_at ?? events.find(e => e.timestamp)?.timestamp ?? "2025-01-01T00:00:00.000Z";
+  const finishedAt = result.finished_at ?? startedAt;
+
+  const startTimeNs = tsToNano(startedAt, "0");
+  const endTimeNs = tsToNano(finishedAt, "0");
+
+  // Build child spans from events
+  const chatSpans: OtlpSpan[] = [];
+  const toolSpans: OtlpSpan[] = [];
+  const toolStarts = new Map<string, StreamedEvent>();
+  const toolFinished = new Set<string>();
+
+  for (const event of events) {
+    const type = event.type;
+
+    // Skip deltas
+    if (DELTA_TYPES.has(type)) continue;
+
+    // Assistant message_end with usage
+    if (type === "message_end" && event.message?.role === "assistant") {
+      const usage = extractUsage(event.message as Record<string, unknown>);
+      if (usage.input !== undefined || usage.output !== undefined) {
+        const sid = deriveSpanId(runId, spanCounter++);
+        const attrs: OtlpAttribute[] = [
+          strAttr("gen_ai.operation.name", "chat"),
+        ];
+        if (event.message.model) attrs.push(strAttr("gen_ai.response.model", event.message.model));
+        if (usage.input !== undefined) attrs.push(intAttr("gen_ai.usage.input_tokens", usage.input));
+        if (usage.output !== undefined) attrs.push(intAttr("gen_ai.usage.output_tokens", usage.output));
+        if (usage.cacheRead !== undefined) attrs.push(intAttr("gen_ai.usage.cache_read.input_tokens", usage.cacheRead));
+        if (usage.cacheWrite !== undefined) attrs.push(intAttr("gen_ai.usage.cache_write.input_tokens", usage.cacheWrite));
+
+        const msgTs = tsToNano(event.timestamp, startTimeNs);
+        chatSpans.push({
+          traceId,
+          spanId: sid,
+          parentId: rootSpanId,
+          name: `chat ${event.message.model ?? result.model ?? "unknown"}`,
+          kind: 1,
+          startTimeUnixNano: msgTs,
+          endTimeUnixNano: msgTs,
+          attributes: attrs,
+          status: { code: 0 },
+        });
+      }
+      continue;
+    }
+
+    // Tool starts
+    if (TOOL_START_TYPES.has(type)) {
+      const id = event.toolCallId ?? event.tool_call_id ?? "";
+      if (id) toolStarts.set(id, event);
+      continue;
+    }
+
+    // Tool ends
+    if (TOOL_END_TYPES.has(type)) {
+      const id = event.toolCallId ?? event.tool_call_id ?? "";
+      const startEvent = toolStarts.get(id);
+      const toolName = startEvent?.toolName ?? "unknown";
+      const startTimeNsLocal = tsToNano(startEvent?.timestamp, startTimeNs);
+      const endTimeNsLocal = tsToNano(event.timestamp, endTimeNs);
+      const isError = event.isError === true;
+      const target = options?.includeToolTargets && startEvent ? extractToolTarget(startEvent) : undefined;
+
+      const toolSpanInfo: ToolSpanInfo = {
+        toolCallId: id,
+        toolName,
+        startTimeNs: startTimeNsLocal,
+        endTimeNs: endTimeNsLocal,
+        isError,
+        target,
+      };
+      toolSpans.push(buildToolSpan(runId, traceId, rootSpanId, toolSpanInfo, spanCounter++));
+      toolFinished.add(id);
+      continue;
+    }
+  }
+
+  // Unfinished tools: starts without matching ends
+  for (const [id, startEvent] of toolStarts) {
+    if (toolFinished.has(id)) continue;
+    const toolName = startEvent.toolName ?? "unknown";
+    const startTimeNsLocal = tsToNano(startEvent.timestamp, startTimeNs);
+    const target = options?.includeToolTargets ? extractToolTarget(startEvent) : undefined;
+    const toolSpanInfo: ToolSpanInfo = {
+      toolCallId: id,
+      toolName,
+      startTimeNs: startTimeNsLocal,
+      endTimeNs: endTimeNs,
+      isError: true,
+      unfinished: true,
+      target,
+    };
+    toolSpans.push(buildToolSpan(runId, traceId, rootSpanId, toolSpanInfo, spanCounter++));
+  }
+
+  // Build root span
+  const passed = result.status === "passed";
+  const rootAttrs: OtlpAttribute[] = [
+    strAttr("gen_ai.operation.name", "invoke_agent"),
+    strAttr("gen_ai.agent.name", runtime),
+    strAttr("gen_ai.agent.id", runIdFromDir(runDir)),
+  ];
+  if (result.model) rootAttrs.push(strAttr("gen_ai.request.model", result.model));
+  if (result.provider) rootAttrs.push(strAttr("gen_ai.provider.name", result.provider));
+  if (result.usage?.input_tokens !== undefined) rootAttrs.push(intAttr("gen_ai.usage.input_tokens", result.usage.input_tokens));
+  if (result.usage?.output_tokens !== undefined) rootAttrs.push(intAttr("gen_ai.usage.output_tokens", result.usage.output_tokens));
+  if (result.usage?.cache_read_tokens !== undefined) rootAttrs.push(intAttr("gen_ai.usage.cache_read.input_tokens", result.usage.cache_read_tokens));
+  if (result.usage?.cache_write_tokens !== undefined) rootAttrs.push(intAttr("gen_ai.usage.cache_write.input_tokens", result.usage.cache_write_tokens));
+  if (control.session_id) rootAttrs.push(strAttr("gen_ai.conversation.id", control.session_id));
+
+  // UH-specific facts
+  rootAttrs.push(strAttr("uh.mission.id", runIdFromMissionDir(runDir)));
+  rootAttrs.push(strAttr("uh.run.status", result.status ?? control.status ?? "unknown"));
+  if (control.turns !== undefined) rootAttrs.push(intAttr("uh.turns", control.turns));
+  if (control.denials !== undefined) rootAttrs.push(intAttr("uh.denials", control.denials));
+  if (result.cost_usd !== undefined) rootAttrs.push(doubleAttr("uh.cost_usd", result.cost_usd));
+  if (result.cost_basis) rootAttrs.push(strAttr("uh.cost_basis", result.cost_basis));
+  if (result.stop_code ?? control.stop_code) {
+    rootAttrs.push(strAttr("uh.stop_code", String(result.stop_code ?? control.stop_code)));
+  }
+
+  const rootStatus = passed ? { code: 0 } : { code: 2, message: result.stop_code ?? control.stop_code ?? result.status ?? "unknown" };
+  if (!passed) {
+    rootAttrs.push(strAttr("error.type", result.stop_code ?? control.stop_code ?? result.status ?? "unknown"));
+  }
+
+  const rootSpan: OtlpSpan = {
+    traceId,
+    spanId: rootSpanId,
+    name: `invoke_agent ${runtime}`,
+    kind: 1,
+    startTimeUnixNano: startTimeNs,
+    endTimeUnixNano: endTimeNs,
+    attributes: rootAttrs,
+    status: rootStatus,
+  };
+
+  const allSpans = [rootSpan, ...chatSpans, ...toolSpans];
+
+  return {
+    resourceSpans: [
+      {
+        resource: {
+          attributes: [
+            strAttr("service.name", "ultimate-harness"),
+            strAttr("service.version", VERSION),
+          ],
+        },
+        scopeSpans: [
+          {
+            scope: { name: "ultimate-harness", version: VERSION },
+            spans: allSpans,
+          },
+        ],
+      },
+    ],
+  };
+}
+
+function buildToolSpan(
+  runId: string,
+  traceId: string,
+  parentId: string,
+  info: ToolSpanInfo,
+  counter: number,
+): OtlpSpan {
+  const spanId = deriveSpanId(runId, counter);
+  const attrs: OtlpAttribute[] = [
+    strAttr("gen_ai.operation.name", "execute_tool"),
+    strAttr("gen_ai.tool.name", info.toolName),
+    strAttr("gen_ai.tool.call.id", info.toolCallId),
+  ];
+  if (info.target) attrs.push(strAttr("uh.tool.target", info.target));
+  if (info.unfinished) {
+    attrs.push(strAttr("error.type", "unfinished"));
+  } else if (info.isError && info.toolCallId) {
+    attrs.push(strAttr("error.type", "tool_error"));
+  }
+
+  return {
+    traceId,
+    spanId,
+    parentId: parentId,
+    name: `execute_tool ${info.toolName}`,
+    kind: 1,
+    startTimeUnixNano: info.startTimeNs,
+    endTimeUnixNano: info.endTimeNs,
+    attributes: attrs,
+    status: { code: 0 },
+  };
+}
+
+function runIdFromDir(runDir: string): string {
+  const parts = runDir.replace(/\\/g, "/").split("/");
+  return parts[parts.length - 1] ?? "unknown";
+}
+
+function runIdFromMissionDir(runDir: string): string {
+  const parts = runDir.replace(/\\/g, "/").split("/");
+  const runsIdx = parts.indexOf("runs");
+  if (runsIdx >= 0 && runsIdx >= 2) return parts[runsIdx - 1];
+  const missionsIdx = parts.indexOf("missions");
+  if (missionsIdx >= 0 && missionsIdx < parts.length - 2) return parts[missionsIdx + 1];
+  return "unknown";
+}
diff --git a/src/harness/otlp-push.ts b/src/harness/otlp-push.ts
new file mode 100644
index 0000000..20c7496
--- /dev/null
+++ b/src/harness/otlp-push.ts
@@ -0,0 +1,111 @@
+import type { OtlpTraceExport } from "./otel-export.js";
+
+const RETRYABLE_STATUSES: readonly number[] = [429, 502, 503, 504];
+const DEFAULT_TIMEOUT_MS = 10_000;
+const RETRY_AFTER_CAP_SECONDS = 5;
+const RETRY_DELAYS_MS: readonly number[] = [500, 2000];
+
+type OtlpPushOk = { kind: "ok"; status: number };
+type OtlpPushFailed = { kind: "failed"; reason: "invalid_endpoint" | "timeout" | "transport" | "http"; status?: number };
+export type OtlpPushResult = OtlpPushOk | OtlpPushFailed;
+
+export interface OtlpPushOptions {
+  endpoint: string;
+  headers?: Record<string, string>;
+  timeoutMs?: number;
+  fetch?: typeof globalThis.fetch;
+  delay?: (ms: number) => Promise<void>;
+}
+
+const sleep = (ms: number): Promise<void> => new Promise((resolve) => setTimeout(resolve, ms));
+
+function normalizeEndpoint(endpoint: string): string | null {
+  let url: URL;
+  try {
+    url = new URL(endpoint);
+  } catch {
+    return null;
+  }
+  if (url.protocol !== "http:" && url.protocol !== "https:") return null;
+  if (url.pathname === "/" || url.pathname === "") {
+    url.pathname = "/v1/traces";
+  }
+  return url.toString();
+}
+
+function retryDelayMs(response: Response, attempt: number): number {
+  const header = response.headers.get("retry-after")?.trim();
+  const seconds = header ? Number(header) : Number.NaN;
+  if (Number.isFinite(seconds) && seconds >= 0) {
+    return Math.min(seconds, RETRY_AFTER_CAP_SECONDS) * 1000;
+  }
+  return RETRY_DELAYS_MS[attempt - 1] ?? RETRY_DELAYS_MS[RETRY_DELAYS_MS.length - 1];
+}
+
+function raceTimeout<T>(operation: Promise<T>, signal: AbortSignal): Promise<T> {
+  return Promise.race([
+    operation,
+    new Promise<never>((_resolve, reject) => {
+      if (signal.aborted) {
+        reject(signal.reason);
+        return;
+      }
+      signal.addEventListener("abort", () => reject(signal.reason), { once: true });
+    }),
+  ]);
+}
+
+export async function pushOtlpTraces(
+  exportBody: OtlpTraceExport,
+  options: OtlpPushOptions,
+): Promise<OtlpPushResult> {
+  const url = normalizeEndpoint(options.endpoint);
+  if (!url) return { kind: "failed", reason: "invalid_endpoint" };
+
+  const timeoutMs = options.timeoutMs ?? DEFAULT_TIMEOUT_MS;
+  const fetchFn = options.fetch ?? globalThis.fetch;
+  const delay = options.delay ?? sleep;
+  const body = JSON.stringify(exportBody);
+
+  let lastStatus: number | undefined;
+
+  for (let attempt = 0; attempt <= 2; attempt += 1) {
+    const controller = new AbortController();
+    const timer = setTimeout(() => controller.abort(), timeoutMs);
+
+    let response: Response;
+    try {
+      response = await raceTimeout(
+        fetchFn(url, {
+          method: "POST",
+          headers: {
+            "content-type": "application/json",
+            ...options.headers,
+          },
+          body,
+          signal: controller.signal,
+        }),
+        controller.signal,
+      );
+    } catch {
+      clearTimeout(timer);
+      if (controller.signal.aborted) {
+        return { kind: "failed", reason: "timeout" };
+      }
+      return { kind: "failed", reason: "transport" };
+    } finally {
+      clearTimeout(timer);
+    }
+
+    if (response.ok) {
+      return { kind: "ok", status: response.status };
+    }
+
+    lastStatus = response.status;
+    if (!RETRYABLE_STATUSES.includes(response.status) || attempt === 2) break;
+
+    await delay(retryDelayMs(response, attempt + 1));
+  }
+
+  return { kind: "failed", reason: "http", status: lastStatus };
+}
diff --git a/src/harness/output-verification.ts b/src/harness/output-verification.ts
new file mode 100644
index 0000000..466628b
--- /dev/null
+++ b/src/harness/output-verification.ts
@@ -0,0 +1,42 @@
+import { lstat, readFile, realpath } from "node:fs/promises";
+import path from "node:path";
+import type { MissionDocument } from "../schema/mission.js";
+import type { VerificationResultDocument } from "../schema/artifacts.js";
+import { isPathWithin } from "./mission.js";
+
+export async function verifyExpectedArtifact(root: string, expected: MissionDocument["expected_artifacts"][number]): Promise<VerificationResultDocument["checks"][number]> {
+  const check: VerificationResultDocument["checks"][number] = { name: `artifact:${expected.path}`, type: "artifact", status: "failed" };
+  const target = path.resolve(root, expected.path);
+  try {
+    if (!isPathWithin(target, root)) {
+      check.notes = "Declared output escapes the workspace";
+      return check;
+    }
+    if (!isPathWithin(await realpath(target), await realpath(root))) {
+      check.notes = "Declared output resolves outside the workspace";
+      return check;
+    }
+    const metadata = await lstat(target);
+    if (!metadata.isFile() || metadata.size === 0) {
+      check.notes = "Declared output must be a non-empty regular file";
+      return check;
+    }
+    const json = expected.type === "json" || path.extname(target).toLowerCase() === ".json";
+    if (json || expected.completion_marker !== undefined) {
+      const text = await readFile(target, "utf8");
+      if (json) {
+        try { JSON.parse(text.replace(/^\uFEFF/, "")); }
+        catch { check.notes = "Declared JSON output is malformed"; return check; }
+      }
+      if (expected.completion_marker !== undefined) {
+        const trimmed = text.trimEnd();
+        if (trimmed.slice(trimmed.lastIndexOf("\n") + 1).trim() !== expected.completion_marker) {
+          check.notes = "Declared completion marker is missing from the final line";
+          return check;
+        }
+      }
+    }
+    check.status = "passed";
+  } catch { check.notes = "Declared output is missing, unreadable, or outside the workspace"; }
+  return check;
+}
diff --git a/src/harness/propose.ts b/src/harness/propose.ts
index 972fd4e..89ed3d3 100644
--- a/src/harness/propose.ts
+++ b/src/harness/propose.ts
@@ -1,5 +1,7 @@
+import type { IndependentReviewBinding } from "../schema/independent-review.js";
 import { mkdir, writeFile } from "node:fs/promises";
 import path from "node:path";
+import { relativeArtifactPath } from "./artifact-paths.js";
 import { stringify } from "yaml";
 import { validateMission } from "../schema/mission.js";
 import { validateFile } from "./validate.js";
@@ -52,6 +54,8 @@ export type ProposeMissionOptions = {
   promotionPolicy?: string;
   requiredChecks?: ProposeRequiredCheck[];
   reviewGates?: string[];
+  runtimeConfigOverrides?: Record<string, unknown>;
+  independentReview?: IndependentReviewBinding;
   outputPath?: string;
   force?: boolean;
 };
@@ -173,6 +177,8 @@ function buildMissionDocument(opts: ProposeMissionOptions): Record<string, unkno
       review_gates: reviewGates,
     },
     completion_criteria: opts.completionCriteria ?? [],
+    ...(opts.runtimeConfigOverrides ? { runtime_config_overrides: opts.runtimeConfigOverrides } : {}),
+    ...(opts.independentReview ? { independent_review: opts.independentReview } : {}),
     ...(opts.acceptanceCriteria && opts.acceptanceCriteria.length > 0
       ? {
           acceptance_criteria: opts.acceptanceCriteria.map((ac) => ({
@@ -219,7 +225,7 @@ export async function proposeMissionFromSpec(
     : path.resolve(root, opts.specPath);
   const spec = await loadSpecFile(resolvedSpec);
 
-  const specRelative = path.relative(root, resolvedSpec);
+  const specRelative = relativeArtifactPath(root, resolvedSpec);
   const readFirst = [...new Set([
     ...(opts.readFirst ?? []),
     specRelative.startsWith("..") ? resolvedSpec : specRelative,
diff --git a/src/harness/render-prompt.ts b/src/harness/render-prompt.ts
index b5b3a6a..a4657d1 100644
--- a/src/harness/render-prompt.ts
+++ b/src/harness/render-prompt.ts
@@ -5,11 +5,10 @@ const MEMORY_SEPARATOR = "\n\n";
 /**
  * Render the canonical mission prompt from a {@link DispatchContext}.
  *
- * The output is byte-for-byte equivalent to the four pre-UH-80 in-adapter
- * `buildMissionPrompt` implementations: same section order, same blank-line
- * separators, same trailing final-message instruction. The memory block, if
- * present, is appended in the slot Honcho memory used to occupy before the
- * refactor.
+ * The output preserves the pre-UH-80 section order and blank-line
+ * separators, while adding optional constraints and acceptance-criteria
+ * blocks from the structured mission packet. The memory block, if present,
+ * is appended in the slot Honcho memory used to occupy before the refactor.
  */
 export function renderPrompt(ctx: DispatchContext): string {
   let prompt = `# Mission: ${ctx.mission.name}\n\n`;
@@ -37,27 +36,56 @@ export function renderPrompt(ctx: DispatchContext): string {
     for (const p of ctx.readFirst) {
       prompt += `- ${p}\n`;
     }
-    prompt += "\n";
+  } else {
+    prompt += "## Read First\n- none, add nothing\n";
   }
+  prompt += "\n";
 
   if (ctx.expectedArtifacts.length > 0) {
     prompt += "## Expected Artifacts\n";
     for (const a of ctx.expectedArtifacts) {
       prompt += `- ${a.path}`;
       if (a.type) prompt += ` (${a.type})`;
+      if (a.completion_marker !== undefined) prompt += `; final nonblank line must be ${JSON.stringify(a.completion_marker)}`;
       prompt += "\n";
     }
-    prompt += "\n";
+  } else {
+    prompt += "## Expected Artifacts\n- none, add nothing\n";
   }
+  prompt += "\n";
 
   if (ctx.verificationChecks.length > 0) {
     prompt += "## Verification Checks\n";
     for (const c of ctx.verificationChecks) {
       prompt += `- ${c}\n`;
     }
-    prompt += "\n";
+  } else {
+    prompt += "## Verification Checks\n- none, add nothing\n";
+  }
+  prompt += "\n";
+
+  if (ctx.constraints.length > 0) {
+    prompt += "## Constraints\n";
+    for (const constraint of ctx.constraints) {
+      prompt += `- ${constraint}\n`;
+    }
+  } else {
+    prompt += "## Constraints\n- none, add nothing\n";
   }
+  prompt += "\n";
 
+  if (ctx.acceptanceCriteria.length > 0) {
+    prompt += "## Acceptance Criteria\n";
+    for (const criterion of ctx.acceptanceCriteria) {
+      prompt += `- ${criterion.id} [${criterion.severity}] ${criterion.description}\n`;
+      if (criterion.check_command !== undefined) {
+        prompt += `  - check_command: ${criterion.check_command}\n`;
+      }
+    }
+  } else {
+    prompt += "## Acceptance Criteria\n- none, add nothing\n";
+  }
+  prompt += "\n";
   prompt += "Execute this mission and produce the expected artifacts.\n";
   prompt += ctx.finalMessageInstruction;
 
diff --git a/src/harness/report.ts b/src/harness/report.ts
new file mode 100644
index 0000000..0a13f82
--- /dev/null
+++ b/src/harness/report.ts
@@ -0,0 +1,687 @@
+// uh report — an instant, model-free status report of any run, from disk only.
+//
+// Everything a report needs is already on disk: the run's `runtime-control.json`
+// and its `events.ndjson`. This module reads the last 256 KB of the event stream
+// (the whole file under `--full`), projects it with the same `projectActivity`
+// the loop probe uses, and reduces it to a bounded, redacted document. Nothing
+// here starts a controller, calls a model, or writes any artifact.
+//
+// Two invariants hold the safety line:
+// - No absolute path reaches any field. Guard targets and written files are
+//   resolved to paths relative to the run's working directory, or to the
+//   bounded placeholders `projectActivity` already publishes (`<outside>`,
+//   `<pattern>`, `unknown`).
+// - No credential reaches any field. The last assistant text is scrubbed with a
+//   conservative key/token pattern before it is bounded to 600 characters.
+import { open, readFile } from "node:fs/promises";
+import path from "node:path";
+import {
+  defaultProcessLister,
+  discoverRuns,
+  isSettled,
+  liveness,
+  type LiveRunRecord,
+  type LivenessVerdict,
+  type NativeProcess,
+  type ProcessLister,
+} from "./live-runs.js";
+import {
+  deterministicLoopSignals,
+  projectActivity,
+  relativeDisplayPath,
+  type DeterministicLoopSignals,
+  type ErrorClass,
+  type ToolCallKind,
+} from "./loop-probe.js";
+import { nativeCostFactsFromEvents, resolveRunCost } from "./runtime-accounting.js";
+import { loadOperatorPriceTable } from "./cost-table.js";
+import type { ToolGuardClass } from "./tool-guard.js";
+
+export const REPORT_SCHEMA_VERSION = "uh.report.v0" as const;
+/** Never read more than the tail of an append-only event log for a report. */
+export const EVENTS_REPORT_TAIL_BYTES = 256 * 1024;
+/** Completed tool calls shown by default. */
+export const DEFAULT_REPORT_LAST = 10;
+/** The last assistant text is never longer than this many characters. */
+export const LAST_ASSISTANT_TEXT_LIMIT = 600;
+/** A projection window large enough to hold every call in the tail. */
+const ACTIVITY_ALL_WINDOW = 1_000_000;
+const REDACTED = "[redacted]";
+const PATH_PLACEHOLDER = "[path]";
+
+type NativeEvent = Record<string, unknown>;
+
+/** One denial: the tool, its resolved relative target, and its guard class. */
+export interface ReportDenial {
+  tool: string;
+  target: string;
+  guard_class: ToolGuardClass | "denied";
+}
+
+/** A projected tool call plus the age of its completion. */
+export interface ReportActivityCall {
+  tool: string;
+  kind: ToolCallKind;
+  target: string;
+  ok: boolean;
+  error_class: ErrorClass;
+  age_ms?: number;
+}
+
+export interface ReportTokens {
+  input?: number;
+  output?: number;
+  cache_read?: number;
+  cache_write?: number;
+}
+
+/** The stable, model-free report document. */
+export interface RunReport {
+  schema_version: typeof REPORT_SCHEMA_VERSION;
+  generated_at: string;
+  run_id: string;
+  mission_id: string;
+  role?: string;
+  runtime: string;
+  model?: string;
+  liveness: LivenessVerdict;
+  status?: string;
+  stop_code?: string;
+  started_at?: string;
+  elapsed_ms?: number;
+  turns?: number;
+  denials: { count: number; events: ReportDenial[] };
+  tokens: ReportTokens | null;
+  tokens_unknown_reason?: string;
+  cost_usd: number | null;
+  cost_source?: "reported" | "estimated";
+  cost_unknown_reason?: string;
+  activity: { source: string; window: number; calls: ReportActivityCall[] };
+  loop_signals: DeterministicLoopSignals;
+  files_written: string[];
+  last_assistant_text?: string;
+}
+
+export interface ReportOptions {
+  /** How many recent completed tool calls to project (default: 10). */
+  last?: number;
+  /** Read the whole events.ndjson instead of its last 256 KB. */
+  full?: boolean;
+  now?: number;
+  /** Native process table for the liveness verdict; injected in tests. */
+  processes?: NativeProcess[];
+  listProcesses?: ProcessLister;
+}
+
+/** A report target could not be resolved. Never carries an absolute path. */
+export class ReportError extends Error {
+  readonly code: string;
+
+  constructor(message: string, code = "report_target") {
+    super(message);
+    this.name = "ReportError";
+    this.code = code;
+  }
+}
+
+/* -------------------------------------------------------------------------- */
+/* Redaction                                                                  */
+/* -------------------------------------------------------------------------- */
+
+/**
+ * Conservative credential shapes. This is a denylist of recognizable keys and
+ * tokens, not a general secret detector: unmatched text is left intact rather
+ * than over-redacted.
+ */
+const SECRET_PATTERNS: readonly RegExp[] = [
+  /-----BEGIN [A-Z ]*PRIVATE KEY-----[\s\S]*?-----END [A-Z ]*PRIVATE KEY-----/g,
+  /\bsk-ant-[A-Za-z0-9_-]{8,}\b/g,
+  /\bsk-[A-Za-z0-9_-]{8,}\b/g,
+  /\b(?:sk|pk|rk)_(?:live|test)_[A-Za-z0-9]{8,}\b/g,
+  /\b(?:AKIA|ASIA)[0-9A-Z]{16}\b/g,
+  /\bgh[pousr]_[A-Za-z0-9]{20,}\b/g,
+  /\bgithub_pat_[A-Za-z0-9_]{20,}\b/g,
+  /\bxox[abprs]-[A-Za-z0-9-]{10,}\b/g,
+  /\bAIza[0-9A-Za-z_-]{20,}\b/g,
+  /\bya29\.[0-9A-Za-z_-]{10,}\b/g,
+  /\bph[csx]_[A-Za-z0-9]{10,}\b/g,
+  /\beyJ[A-Za-z0-9_-]{8,}\.[A-Za-z0-9_-]{8,}\.[A-Za-z0-9_-]{8,}\b/g,
+  /\bBearer\s+[A-Za-z0-9._-]{10,}/gi,
+];
+
+/** Named credentials keep their name; only the value is replaced. */
+const NAMED_CREDENTIAL = /((?:api[_-]?key|access[_-]?key|secret|token|password|passwd|credential|authorization)["']?\s*[:=]\s*["']?)([A-Za-z0-9_\-./+]{6,})/gi;
+
+/** Absolute Unix paths (two or more segments) and Windows drive paths. */
+const POSIX_ABSOLUTE_PATH = /\/(?:[A-Za-z0-9._-]+\/)+[A-Za-z0-9._-]+/g;
+const WINDOWS_ABSOLUTE_PATH = /[A-Za-z]:\\(?:[^\\\s"']+\\)*[^\\\s"']*/g;
+
+/** Replace every recognizable credential with a fixed placeholder. */
+export function redactSecrets(text: string): string {
+  let out = text;
+  for (const pattern of SECRET_PATTERNS) out = out.replace(pattern, REDACTED);
+  out = out.replace(NAMED_CREDENTIAL, (_match, prefix: string) => `${prefix}${REDACTED}`);
+  return out;
+}
+
+/**
+ * Sanitize free text for a report: known credentials and absolute paths are
+ * replaced, so a report field can never publish a credential or a home
+ * directory.
+ */
+export function sanitizeReportText(text: string): string {
+  return redactSecrets(text)
+    .replace(WINDOWS_ABSOLUTE_PATH, PATH_PLACEHOLDER)
+    .replace(POSIX_ABSOLUTE_PATH, PATH_PLACEHOLDER)
+    .trim();
+}
+
+/* -------------------------------------------------------------------------- */
+/* Event reading                                                              */
+/* -------------------------------------------------------------------------- */
+
+interface EventLog {
+  /** Raw, non-empty JSON lines; the tail drops the first partial line. */
+  lines: string[];
+  truncated: boolean;
+}
+
+async function readEventLog(projectRoot: string, controlPath: string, full: boolean): Promise<EventLog> {
+  const eventsPath = path.join(path.dirname(path.resolve(projectRoot, controlPath)), "events.ndjson");
+  if (full) {
+    try {
+      const raw = await readFile(eventsPath, "utf8");
+      return { lines: nonEmptyLines(raw), truncated: false };
+    } catch {
+      return { lines: [], truncated: false };
+    }
+  }
+  let handle;
+  try {
+    handle = await open(eventsPath, "r");
+  } catch {
+    return { lines: [], truncated: false };
+  }
+  try {
+    const { size } = await handle.stat();
+    if (size === 0) return { lines: [], truncated: false };
+    const length = Math.min(size, EVENTS_REPORT_TAIL_BYTES);
+    const buffer = Buffer.allocUnsafe(length);
+    const { bytesRead } = await handle.read(buffer, 0, length, size - length);
+    let text = buffer.subarray(0, bytesRead).toString("utf8");
+    let truncated = false;
+    if (size > length) {
+      truncated = true;
+      const newline = text.indexOf("\n");
+      text = newline >= 0 ? text.slice(newline + 1) : "";
+    }
+    return { lines: nonEmptyLines(text), truncated };
+  } finally {
+    await handle.close();
+  }
+}
+
+function nonEmptyLines(text: string): string[] {
+  return text.split(/\r?\n/).map((line) => line.trim()).filter((line) => line.length > 0);
+}
+
+function parseEvents(lines: readonly string[]): NativeEvent[] {
+  const events: NativeEvent[] = [];
+  for (const line of lines) {
+    let parsed: unknown;
+    try {
+      parsed = JSON.parse(line);
+    } catch {
+      continue;
+    }
+    const event = record(parsed);
+    if (event) events.push(event);
+  }
+  return events;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Event projection helpers                                                   */
+/* -------------------------------------------------------------------------- */
+
+const START_TYPES: ReadonlySet<string> = new Set(["tool_queued", "tool_running", "tool_execution_start"]);
+/** Every event that closes a call: a completion or a denial. */
+const END_TYPES: ReadonlySet<string> = new Set([
+  "tool_execution_end", "tool_completed", "tool_hook_blocked", "tool_call_blocked", "tool_denied",
+]);
+const DENY_TYPES: ReadonlySet<string> = new Set(["tool_hook_blocked", "tool_call_blocked", "tool_denied"]);
+
+const SHELL_TOOLS: ReadonlySet<string> = new Set([
+  "bash", "shell", "shell_command", "run_command", "terminal", "execute", "powershell", "zsh", "cmd",
+]);
+const PATH_ARGUMENT_KEYS = ["path", "file_path", "filePath", "file", "target_file", "notebook_path", "abs_path"] as const;
+const PLACEHOLDER_TARGETS: ReadonlySet<string> = new Set(["<outside>", "<pattern>", "unknown"]);
+
+function record(value: unknown): NativeEvent | undefined {
+  return typeof value === "object" && value !== null && !Array.isArray(value) ? (value as NativeEvent) : undefined;
+}
+
+/** Command Code wraps native events in an `event` envelope; oh-my-pi does not. */
+function unwrap(value: unknown): NativeEvent | undefined {
+  const outer = record(value);
+  if (!outer) return undefined;
+  return record(outer.event) ?? outer;
+}
+
+function eventId(event: NativeEvent): string {
+  return String(event.toolCallId ?? event.tool_call_id ?? event.id ?? "");
+}
+
+function eventToolName(event: NativeEvent): string {
+  const name = event.toolName ?? event.tool_name ?? event.tool;
+  return typeof name === "string" ? name.trim() : "";
+}
+
+function eventArgs(event: NativeEvent): NativeEvent | undefined {
+  const args = record(event.input) ?? record(event.args);
+  if (args) return args;
+  return typeof event.command === "string" ? { command: event.command } : undefined;
+}
+
+function eventTimestamp(event: NativeEvent): number | undefined {
+  const raw = event.timestamp;
+  if (typeof raw !== "string") return undefined;
+  const parsed = Date.parse(raw);
+  return Number.isFinite(parsed) ? parsed : undefined;
+}
+
+/**
+ * The completion timestamp of every call `projectActivity` would keep, in the
+ * same completion order. Aligned to `projectActivity`'s window by the caller.
+ */
+function completionTimestamps(events: readonly NativeEvent[]): Array<number | undefined> {
+  const active = new Set<string>();
+  const timestamps: Array<number | undefined> = [];
+  for (const event of events) {
+    const type = String(event.type ?? "");
+    const id = eventId(event);
+    if (START_TYPES.has(type)) {
+      if (!id) continue;
+      if (!active.has(id) && eventToolName(event)) active.add(id);
+      continue;
+    }
+    if (!END_TYPES.has(type)) continue;
+    if (!id || !active.has(id)) continue;
+    active.delete(id);
+    timestamps.push(eventTimestamp(event));
+  }
+  return timestamps;
+}
+
+const GUARD_CLASSES: ReadonlySet<string> = new Set<ToolGuardClass>([
+  "write_outside", "git_mutation", "delete_outside", "kill_or_format", "package_install",
+  "network_client", "agent_client", "protected_root", "guard_tamper", "containment_escape",
+]);
+
+/** The guard class a disclosed `CONTRACT:` block reason names, when it names one. */
+function guardClassFromText(text: string | undefined): ToolGuardClass | undefined {
+  if (!text) return undefined;
+  const value = text.toLowerCase();
+  if (value.includes("write only under")) return "write_outside";
+  if (value.includes("no git mutations")) return "git_mutation";
+  if (value.includes("no package installs")) return "package_install";
+  if (value.includes("no sub-agents")) return "agent_client";
+  if (value.includes("no network or agent clients")) return "network_client";
+  if (value.includes("no launches outside the supervised process tree")) return "containment_escape";
+  if (value.includes("harness policy and its state are not yours")) return "guard_tamper";
+  if (value.includes("deletes and process kills only inside")) return "kill_or_format";
+  if (value.includes("belongs to the harness and is read-only")) return "protected_root";
+  return undefined;
+}
+
+/** A structured `class` a guard may attach to its own denial record. */
+function explicitGuardClass(event: NativeEvent, depth = 0): ToolGuardClass | undefined {
+  if (depth > 4) return undefined;
+  if (typeof event.class === "string" && GUARD_CLASSES.has(event.class)) return event.class as ToolGuardClass;
+  for (const value of Object.values(event)) {
+    const item = record(value);
+    if (item) {
+      const found = explicitGuardClass(item, depth + 1);
+      if (found) return found;
+    }
+  }
+  return undefined;
+}
+
+function containsContract(value: unknown, depth = 0): boolean {
+  if (depth > 4) return false;
+  if (typeof value === "string") return value.trimStart().startsWith("CONTRACT:");
+  if (Array.isArray(value)) return value.some((item) => containsContract(item, depth + 1));
+  const item = record(value);
+  if (!item) return false;
+  if (typeof item.text === "string" && item.text.trimStart().startsWith("CONTRACT:")) return true;
+  if (typeof item.reason === "string" && item.reason.trimStart().startsWith("CONTRACT:")) return true;
+  if (["denied", "blocked", "permission_denied"].includes(String(item.status ?? item.kind ?? "").toLowerCase())) return true;
+  return Object.values(item).some((child) => containsContract(child, depth + 1));
+}
+
+function executableName(token: string): string {
+  const bare = token.replace(/^['"]|['"]$/g, "");
+  const base = bare.split("/").filter(Boolean).pop() ?? "";
+  const lowered = base.toLowerCase();
+  if (!lowered) return "unknown";
+  const dot = lowered.lastIndexOf(".");
+  return dot > 0 ? lowered.slice(0, dot) : lowered;
+}
+
+function shellExecutable(command: string): string {
+  for (const token of command.trim().split(/\s+/)) {
+    if (!token) continue;
+    if (/^[A-Za-z_][A-Za-z0-9_]*=/.test(token)) continue;
+    if (token === "sudo" || token === "env" || token === "time") continue;
+    return token;
+  }
+  return "";
+}
+
+function firstPathArg(args: NativeEvent | undefined): string | undefined {
+  if (!args) return undefined;
+  if (Array.isArray(args.paths)) {
+    for (const value of args.paths) if (typeof value === "string" && value.trim()) return value.trim();
+  }
+  for (const key of PATH_ARGUMENT_KEYS) {
+    const value = args[key];
+    if (typeof value === "string" && value.trim()) return value.trim();
+  }
+  return undefined;
+}
+
+function denialTarget(toolName: string, args: NativeEvent | undefined): string {
+  const name = toolName.toLowerCase();
+  if (SHELL_TOOLS.has(name) || name.startsWith("run_")) {
+    const command = typeof args?.command === "string" ? args.command : "";
+    return executableName(shellExecutable(command));
+  }
+  const value = firstPathArg(args);
+  if (value !== undefined) return relativeDisplayPath(value);
+  if (typeof args?.pattern === "string" && args.pattern.trim()) return "<pattern>";
+  return "unknown";
+}
+
+/** Every denial in the stream, each with its relative target and guard class. */
+function projectDenials(events: readonly NativeEvent[]): ReportDenial[] {
+  const starts = new Map<string, { toolName: string; args: NativeEvent | undefined }>();
+  const blockTexts = new Map<string, string>();
+  const denials: ReportDenial[] = [];
+  for (const event of events) {
+    const type = String(event.type ?? "");
+    const id = eventId(event);
+    const name = eventToolName(event);
+    if (START_TYPES.has(type)) {
+      if (!id) continue;
+      const pending = starts.get(id);
+      if (pending) {
+        if (!pending.args) pending.args = eventArgs(event);
+        continue;
+      }
+      if (!name) continue;
+      starts.set(id, { toolName: name, args: eventArgs(event) });
+      continue;
+    }
+    if (type === "tool_hooks") {
+      const outcome = record(event.outcome);
+      if (event.phase === "pre" && outcome?.kind === "block" && typeof outcome.text === "string" && id) {
+        blockTexts.set(id, outcome.text);
+      }
+      continue;
+    }
+    if (!END_TYPES.has(type)) continue;
+    const start = id ? starts.get(id) : undefined;
+    if (!start) continue;
+    starts.delete(id);
+    const denied = DENY_TYPES.has(type)
+      || event.denied === true
+      || event.is_denied === true
+      || containsContract(event);
+    if (!denied) continue;
+    const text = blockTexts.get(id);
+    const guard_class = explicitGuardClass(event) ?? guardClassFromText(text) ?? "denied";
+    denials.push({ tool: start.toolName, target: denialTarget(start.toolName, start.args), guard_class });
+  }
+  return denials;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Assistant text                                                             */
+/* -------------------------------------------------------------------------- */
+
+function textOf(content: unknown): string | undefined {
+  if (typeof content === "string") return content.trim() || undefined;
+  if (Array.isArray(content)) {
+    const parts: string[] = [];
+    for (const block of content) {
+      const item = record(block);
+      if (item && typeof item.text === "string" && item.text.trim()) parts.push(item.text);
+    }
+    return parts.length > 0 ? parts.join("\n") : undefined;
+  }
+  const item = record(content);
+  if (item && typeof item.text === "string") return item.text.trim() || undefined;
+  return undefined;
+}
+
+function assistantTextFromEvent(event: NativeEvent): string | undefined {
+  const type = String(event.type ?? "");
+  if (type === "result" && typeof event.result === "string") return event.result.trim() || undefined;
+  const message = record(event.message);
+  if (message?.role === "assistant") {
+    const text = textOf(message.content) ?? (typeof message.text === "string" ? message.text : undefined);
+    if (text) return text;
+  }
+  if (type === "assistant") {
+    const text = textOf(event.content) ?? (typeof event.text === "string" ? event.text : undefined);
+    if (text) return text;
+  }
+  if (type === "agent_end" && Array.isArray(event.messages)) {
+    for (let index = event.messages.length - 1; index >= 0; index -= 1) {
+      const item = record(event.messages[index]);
+      if (item?.role === "assistant") {
+        const text = textOf(item.content);
+        if (text) return text;
+      }
+    }
+  }
+  return undefined;
+}
+
+/** The last assistant-authored text in the stream, before redaction or bounding. */
+export function lastAssistantText(events: readonly NativeEvent[]): string | undefined {
+  let found: string | undefined;
+  for (const event of events) {
+    const text = assistantTextFromEvent(event);
+    if (text !== undefined) found = text;
+  }
+  return found;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Target resolution                                                          */
+/* -------------------------------------------------------------------------- */
+
+/**
+ * Resolve a run id (or a unique prefix of one) against everything discoverable
+ * from the project root, including settled runs.
+ */
+export async function resolveReportTarget(
+  projectRoot: string,
+  runId: string,
+  now: number,
+): Promise<LiveRunRecord> {
+  const records = await discoverRuns(path.resolve(projectRoot), { includeSettled: true, now, persist: false });
+  const exact = records.filter((entry) => entry.run_id === runId);
+  if (exact.length === 1) return exact[0]!;
+  const prefixed = records.filter((entry) => entry.run_id.startsWith(runId));
+  if (prefixed.length === 0) {
+    throw new ReportError(
+      `No run matching "${runId}" is discoverable from the project root. Try \`uh ps --all\`.`,
+      "unknown_target",
+    );
+  }
+  if (prefixed.length > 1) {
+    throw new ReportError(
+      `"${runId}" is ambiguous: ${prefixed.map((entry) => entry.run_id).sort().join(", ")}`,
+      "ambiguous_target",
+    );
+  }
+  return prefixed[0]!;
+}
+
+/* -------------------------------------------------------------------------- */
+/* The report                                                                 */
+/* -------------------------------------------------------------------------- */
+
+function definedTokens(usage: { input_tokens?: number; output_tokens?: number; cache_read_tokens?: number; cache_write_tokens?: number } | undefined): ReportTokens | null {
+  if (!usage) return null;
+  const tokens: ReportTokens = {};
+  if (typeof usage.input_tokens === "number") tokens.input = usage.input_tokens;
+  if (typeof usage.output_tokens === "number") tokens.output = usage.output_tokens;
+  if (typeof usage.cache_read_tokens === "number") tokens.cache_read = usage.cache_read_tokens;
+  if (typeof usage.cache_write_tokens === "number") tokens.cache_write = usage.cache_write_tokens;
+  return Object.keys(tokens).length > 0 ? tokens : null;
+}
+
+function uniqueTargets(calls: ReadonlyArray<{ kind: ToolCallKind; target: string; ok: boolean }>): string[] {
+  const seen = new Set<string>();
+  const written: string[] = [];
+  for (const call of calls) {
+    if (call.kind !== "write" || !call.ok || PLACEHOLDER_TARGETS.has(call.target)) continue;
+    if (seen.has(call.target)) continue;
+    seen.add(call.target);
+    written.push(call.target);
+  }
+  return written;
+}
+
+/** Build the model-free report for one run. Reads disk only; writes nothing. */
+export async function reportRun(
+  projectRoot: string,
+  runId: string,
+  options: ReportOptions = {},
+): Promise<RunReport> {
+  const root = path.resolve(projectRoot);
+  const now = options.now ?? Date.now();
+  const record = await resolveReportTarget(root, runId, now);
+
+  const requested = options.last ?? DEFAULT_REPORT_LAST;
+  const last = Number.isInteger(requested) && requested > 0 ? requested : DEFAULT_REPORT_LAST;
+
+  const processes = options.processes
+    ?? (isSettled(record) ? [] : await (options.listProcesses ?? defaultProcessLister)());
+
+  const log = await readEventLog(root, record.control_path, options.full === true);
+  const events = parseEvents(log.lines);
+
+  const window = projectActivity(events, { window: last });
+  const all = projectActivity(events, { window: ACTIVITY_ALL_WINDOW });
+  const ages = completionTimestamps(events).slice(-window.calls.length);
+  const calls: ReportActivityCall[] = window.calls.map((call, index) => {
+    const at = ages[index];
+    const age = at === undefined ? undefined : Math.max(0, now - at);
+    return { ...call, ...(age !== undefined ? { age_ms: age } : {}) };
+  });
+
+  const native = nativeCostFactsFromEvents(log.lines);
+  const priceTable = await loadOperatorPriceTable(root);
+  const resolved = resolveRunCost({ runtime: record.runtime, native, priceTable });
+  const tokens = native.token_counts ? definedTokens(native.usage) : null;
+
+  const denialEvents = projectDenials(events);
+  const rawAssistant = lastAssistantText(events);
+  const lastAssistant = rawAssistant === undefined
+    ? undefined
+    : sanitizeReportText(rawAssistant).slice(0, LAST_ASSISTANT_TEXT_LIMIT);
+
+  const startedMs = record.started_at !== undefined ? Date.parse(record.started_at) : Number.NaN;
+  const reference = record.settled_at !== undefined ? Date.parse(record.settled_at) : now;
+  const elapsed = Number.isFinite(startedMs) && Number.isFinite(reference)
+    ? Math.max(0, reference - startedMs)
+    : undefined;
+
+  return {
+    schema_version: REPORT_SCHEMA_VERSION,
+    generated_at: new Date(now).toISOString(),
+    run_id: record.run_id,
+    mission_id: record.mission_id,
+    ...(record.team !== undefined ? { role: record.team.role } : {}),
+    runtime: record.runtime,
+    ...(record.model !== undefined ? { model: record.model } : {}),
+    liveness: liveness(record, processes, { now }),
+    ...(record.status !== undefined ? { status: record.status } : {}),
+    ...(record.stop_code !== undefined ? { stop_code: record.stop_code } : {}),
+    ...(record.started_at !== undefined ? { started_at: record.started_at } : {}),
+    ...(elapsed !== undefined ? { elapsed_ms: elapsed } : {}),
+    ...(record.turns !== undefined ? { turns: record.turns } : {}),
+    denials: { count: record.denials ?? denialEvents.length, events: denialEvents },
+    tokens,
+    ...(tokens === null ? { tokens_unknown_reason: "the event stream carries no usage counters" } : {}),
+    cost_usd: resolved.cost_usd ?? null,
+    ...(resolved.cost_source !== undefined ? { cost_source: resolved.cost_source } : {}),
+    ...(resolved.cost_unknown_reason !== undefined ? { cost_unknown_reason: resolved.cost_unknown_reason } : {}),
+    activity: { source: window.source, window: last, calls },
+    loop_signals: deterministicLoopSignals(window),
+    files_written: uniqueTargets(all.calls),
+    ...(lastAssistant !== undefined ? { last_assistant_text: lastAssistant } : {}),
+  };
+}
+
+/* -------------------------------------------------------------------------- */
+/* Presentation                                                               */
+/* -------------------------------------------------------------------------- */
+
+function formatDuration(milliseconds: number | undefined): string {
+  if (milliseconds === undefined || !Number.isFinite(milliseconds)) return "-";
+  if (milliseconds < 1000) return `${Math.round(milliseconds)}ms`;
+  if (milliseconds < 60_000) return `${Math.round(milliseconds / 1000)}s`;
+  if (milliseconds < 3_600_000) return `${Math.floor(milliseconds / 60_000)}m${Math.round((milliseconds % 60_000) / 1000)}s`;
+  return `${Math.floor(milliseconds / 3_600_000)}h${Math.floor((milliseconds % 3_600_000) / 60_000)}m`;
+}
+
+/** A compact, human-readable rendering. Contains no absolute path. */
+export function formatRunReport(report: RunReport): string {
+  const route = report.model !== undefined ? `${report.runtime}/${report.model}` : report.runtime;
+  const role = report.role !== undefined ? `role=${report.role}` : "role=-";
+  const lines: string[] = [
+    `Run ${report.run_id}  ${report.mission_id}  ${role}  ${route}`,
+    `liveness=${report.liveness}  status=${report.status ?? "-"}  elapsed=${formatDuration(report.elapsed_ms)}  turns=${report.turns ?? "-"}  denials=${report.denials.count}`,
+  ];
+
+  lines.push(
+    report.tokens === null
+      ? `tokens: unknown (${report.tokens_unknown_reason ?? "not measured"})`
+      : `tokens: input=${report.tokens.input ?? "?"} output=${report.tokens.output ?? "?"} cache_read=${report.tokens.cache_read ?? "?"} cache_write=${report.tokens.cache_write ?? "?"}`,
+  );
+  lines.push(
+    report.cost_usd === null
+      ? `cost: unknown (${report.cost_unknown_reason ?? "no price"})`
+      : `cost: $${report.cost_usd.toFixed(6)} (${report.cost_source ?? "reported"})`,
+  );
+
+  lines.push(`loop signals: identical_repeats=${report.loop_signals.identical_repeats} alternating_pairs=${report.loop_signals.alternating_pairs} distinct_targets=${report.loop_signals.distinct_targets}`);
+
+  lines.push(`activity (${report.activity.source}, last ${report.activity.calls.length}):`);
+  if (report.activity.calls.length === 0) lines.push("  (none)");
+  for (const call of report.activity.calls) {
+    lines.push(`  ${call.tool}  ${call.kind}  ${call.target}  ${call.ok ? "ok" : "fail"}  ${call.error_class}  age=${formatDuration(call.age_ms)}`);
+  }
+
+  if (report.denials.events.length > 0) {
+    lines.push("denials:");
+    for (const denial of report.denials.events) {
+      lines.push(`  ${denial.guard_class}  ${denial.tool}  ${denial.target}`);
+    }
+  }
+
+  lines.push("files written:");
+  if (report.files_written.length === 0) lines.push("  (none)");
+  for (const file of report.files_written) lines.push(`  ${file}`);
+
+  lines.push("last assistant text:");
+  lines.push(report.last_assistant_text !== undefined ? `  ${report.last_assistant_text}` : "  (none)");
+
+  return lines.join("\n");
+}
diff --git a/src/harness/run-comparison.ts b/src/harness/run-comparison.ts
new file mode 100644
index 0000000..86e2471
--- /dev/null
+++ b/src/harness/run-comparison.ts
@@ -0,0 +1,151 @@
+/**
+ * Outcome-vs-cost comparison of two run arms (for example two session
+ * templates) with honest uncertainty. Pure: no I/O, no clock, no env.
+ *
+ * Spec notes:
+ * - Success rates carry a Wilson score interval, never a bare percentage, so a
+ *   handful of runs cannot be read as a signal.
+ * - Unknown cost stays unknown. Missing `cost_usd` is never treated as free, so
+ *   an arm with unpriced runs can never look "cheaper per success".
+ * - A changed configuration only earns a "better" verdict when the intervals do
+ *   not overlap AND it beats plain repeated attempts of the baseline, which is
+ *   what `bestOfN` / `attemptsToMatch` make visible.
+ */
+import type { RunRecord } from "./experience-store.js";
+
+/** Smallest runs-per-arm count below which no difference is reportable. */
+export const MIN_ARM_RUNS = 5;
+
+/** Ceiling on reported best-of-n attempts; beyond this the answer is "too many". */
+export const BEST_OF_N_CAP = 16;
+
+export type WilsonInterval = { low: number; high: number };
+
+export type ArmSummary = {
+  runs: number;
+  passed: number;
+  success_rate: number;
+  interval: WilsonInterval;
+  known_cost_runs: number;
+  total_cost_usd: number | undefined;
+  mean_cost_usd: number | undefined;
+  cost_per_success_usd: number | undefined;
+  mean_duration_ms: number | undefined;
+};
+
+export type ComparisonVerdict =
+  | "insufficient_data"
+  | "no_clear_difference"
+  | "a_better"
+  | "b_better";
+
+export type CheaperPerSuccess = "a" | "b" | "unknown";
+
+export type ArmComparison = {
+  a: ArmSummary;
+  b: ArmSummary;
+  delta_success_rate: number;
+  intervals_overlap: boolean;
+  cheaper_per_success: CheaperPerSuccess;
+  verdict: ComparisonVerdict;
+};
+
+const isKnownNonNegative = (value: number | undefined): value is number =>
+  typeof value === "number" && Number.isFinite(value) && value >= 0;
+
+const meanOf = (values: number[]): number | undefined =>
+  values.length ? values.reduce((sum, value) => sum + value, 0) / values.length : undefined;
+
+/**
+ * Wilson score interval for `successes` out of `n` attempts at z-score `z`
+ * (1.96 is 95%). An empty arm is maximally uncertain: `{ low: 0, high: 1 }`.
+ */
+export function wilsonInterval(successes: number, n: number, z = 1.96): WilsonInterval {
+  if (!Number.isFinite(n) || n <= 0) return { low: 0, high: 1 };
+  const p = successes / n;
+  const z2 = z * z;
+  const denominator = 1 + z2 / n;
+  const centre = (p + z2 / (2 * n)) / denominator;
+  const halfWidth = (z / denominator) * Math.sqrt((p * (1 - p)) / n + z2 / (4 * n * n));
+  return {
+    low: Math.max(0, centre - halfWidth),
+    high: Math.min(1, centre + halfWidth),
+  };
+}
+
+/** Summarize one arm's records; unknown cost and duration stay undefined. */
+export function summarizeArm(records: readonly RunRecord[]): ArmSummary {
+  const runs = records.length;
+  const passed = records.filter((record) => record.status === "passed").length;
+  const costs = records.map((record) => record.cost_usd).filter(isKnownNonNegative);
+  const durations = records.map((record) => record.duration_ms).filter(isKnownNonNegative);
+  const totalCostUsd = costs.length ? costs.reduce((sum, cost) => sum + cost, 0) : undefined;
+  return {
+    runs,
+    passed,
+    success_rate: runs ? passed / runs : 0,
+    interval: wilsonInterval(passed, runs),
+    known_cost_runs: costs.length,
+    total_cost_usd: totalCostUsd,
+    mean_cost_usd: meanOf(costs),
+    cost_per_success_usd: totalCostUsd !== undefined && passed > 0 ? totalCostUsd / passed : undefined,
+    mean_duration_ms: meanOf(durations),
+  };
+}
+
+const intervalsOverlap = (a: WilsonInterval, b: WilsonInterval): boolean =>
+  !(a.high < b.low || b.high < a.low);
+
+function cheaperPerSuccess(a: ArmSummary, b: ArmSummary): CheaperPerSuccess {
+  if (a.cost_per_success_usd === undefined || b.cost_per_success_usd === undefined) return "unknown";
+  if (a.cost_per_success_usd < b.cost_per_success_usd) return "a";
+  if (b.cost_per_success_usd < a.cost_per_success_usd) return "b";
+  return "unknown";
+}
+
+/**
+ * Compare two arms. `insufficient_data` wins over everything; otherwise
+ * overlapping Wilson intervals mean no clear difference, and only
+ * non-overlapping intervals name a better arm.
+ */
+export function compareArms(a: readonly RunRecord[], b: readonly RunRecord[]): ArmComparison {
+  const summaryA = summarizeArm(a);
+  const summaryB = summarizeArm(b);
+  const overlap = intervalsOverlap(summaryA.interval, summaryB.interval);
+  let verdict: ComparisonVerdict;
+  if (summaryA.runs < MIN_ARM_RUNS || summaryB.runs < MIN_ARM_RUNS) {
+    verdict = "insufficient_data";
+  } else if (overlap) {
+    verdict = "no_clear_difference";
+  } else {
+    verdict = summaryA.success_rate > summaryB.success_rate ? "a_better" : "b_better";
+  }
+  return {
+    a: summaryA,
+    b: summaryB,
+    delta_success_rate: summaryA.success_rate - summaryB.success_rate,
+    intervals_overlap: overlap,
+    cheaper_per_success: cheaperPerSuccess(summaryA, summaryB),
+    verdict,
+  };
+}
+
+/** Chance at least one of `n` independent attempts passes at rate `p`. */
+export function bestOfN(successRate: number, n: number): number {
+  if (n <= 0) return 0;
+  return 1 - Math.pow(1 - successRate, n);
+}
+
+/**
+ * Smallest number of plain repeated attempts of the baseline that reaches
+ * `targetRate`, capped at {@link BEST_OF_N_CAP}. Undefined when the baseline
+ * never passes, so repeats cannot buy any chance at all.
+ */
+export function attemptsToMatch(baselineRate: number, targetRate: number): number | undefined {
+  if (!(baselineRate > 0)) return undefined;
+  if (targetRate <= 0) return 1;
+  for (let n = 1; n <= BEST_OF_N_CAP; n += 1) {
+    if (bestOfN(baselineRate, n) >= targetRate) return n;
+  }
+  return BEST_OF_N_CAP;
+}
diff --git a/src/harness/run-id.ts b/src/harness/run-id.ts
index 6941d1d..6c416d3 100644
--- a/src/harness/run-id.ts
+++ b/src/harness/run-id.ts
@@ -1,6 +1,7 @@
 import { randomBytes } from "node:crypto";
-import { copyFile, mkdir, readFile, rename, rm, stat, writeFile } from "node:fs/promises";
+import { mkdir, readFile, rm, lstat } from "node:fs/promises";
 import path from "node:path";
+import { withArtifactTransaction, writeAtomicArtifact } from "./artifact-transaction.js";
 import {
   missionDir,
   missionLatestPointer,
@@ -45,7 +46,14 @@ export function assertValidRunId(runId: string): void {
 }
 
 export async function ensureRunDir(root: string, missionId: string, runId: string): Promise<string> {
+  assertValidRunId(runId);
   const dir = missionRunDir(root, missionId, runId);
+  for (const directory of [missionRunsDir(root, missionId), dir]) {
+    try {
+      const existing = await lstat(directory);
+      if (existing.isSymbolicLink() || !existing.isDirectory()) throw new Error(`Unsafe run directory: ${directory}`);
+    } catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
+  }
   await mkdir(dir, { recursive: true });
   return dir;
 }
@@ -55,12 +63,21 @@ export async function writeLatestPointer(
   missionId: string,
   pointer: LatestRunPointer,
 ): Promise<void> {
-  await mkdir(missionDir(root, missionId), { recursive: true });
+  await mkdir(missionRunsDir(root, missionId), { recursive: true });
   const validated = LatestRunPointerSchema.parse(pointer);
   const dst = missionLatestPointer(root, missionId);
-  const tmp = `${dst}.tmp`;
-  await writeFile(tmp, JSON.stringify(validated, null, 2), "utf-8");
-  await rename(tmp, dst);
+  await withArtifactTransaction(missionRunsIndex(root, missionId), async () => {
+    let previous: LatestRunPointer | undefined;
+    try { previous = LatestRunPointerSchema.parse(JSON.parse(await readFile(dst, "utf8"))); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
+    if (previous && previous.run_id !== validated.run_id &&
+        (previous.started_at > validated.started_at ||
+         (previous.started_at === validated.started_at && previous.run_id > validated.run_id))) return;
+    if (previous?.run_id === validated.run_id && previous.status !== "running" && validated.status === "running") {
+      throw new Error(`Cannot restart settled attempt ${validated.run_id}; allocate a new run id`);
+    }
+    await writeAtomicArtifact(dst, JSON.stringify(validated, null, 2));
+  });
 }
 
 export async function readLatestPointer(
@@ -87,41 +104,28 @@ export async function appendRunsIndexEntry(
 ): Promise<void> {
   const indexPath = missionRunsIndex(root, missionId);
   await mkdir(missionRunsDir(root, missionId), { recursive: true });
-  let current: { schema_version: "uh.runs-index.v0"; runs: RunsIndexEntry[] };
-  try {
-    const raw = await readFile(indexPath, "utf-8");
-    current = RunsIndexSchema.parse(JSON.parse(raw));
-  } catch {
-    current = { schema_version: "uh.runs-index.v0", runs: [] };
-  }
-  const idx = current.runs.findIndex((r) => r.run_id === entry.run_id);
-  if (idx >= 0) {
-    // UH-87: `replay_of` is set by the Hermes plugin when start_run is
-    // called with a `replay_of` body field; adapters never set it. Without
-    // this preservation the adapter's first running -> terminal row
-    // overwrite would erase the lineage breadcrumb the plugin just wrote.
-    const preserved = current.runs[idx];
-    if (entry.replay_of === undefined && preserved?.replay_of !== undefined) {
-      current.runs[idx] = { ...entry, replay_of: preserved.replay_of };
+  await withArtifactTransaction(indexPath, async () => {
+    let current: { schema_version: "uh.runs-index.v0"; runs: RunsIndexEntry[] };
+    try {
+      current = RunsIndexSchema.parse(JSON.parse(await readFile(indexPath, "utf-8")));
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
+      current = { schema_version: "uh.runs-index.v0", runs: [] };
+    }
+    const validated = RunsIndexSchema.parse({ schema_version: "uh.runs-index.v0", runs: [entry] }).runs[0];
+    const index = current.runs.findIndex((run) => run.run_id === validated.run_id);
+    if (index < 0) {
+      current.runs.push(validated);
     } else {
-      current.runs[idx] = entry;
+      const previous = current.runs[index];
+      current.runs[index] = {
+        ...previous,
+        ...validated,
+        ...(validated.replay_of === undefined && previous.replay_of !== undefined ? { replay_of: previous.replay_of } : {}),
+      };
     }
-  } else {
-    current.runs.push(entry);
-  }
-  // Codex P1 (PR #96): two concurrent writers must NOT race on the same
-  // tmp path. A shared `index.json.tmp` would either ENOENT-fail one
-  // rename or silently overwrite — both drop run history entries. Suffix
-  // with random bytes so each writer has its own staging file. Rename is
-  // still atomic on the same filesystem (POSIX rename(2) overwrites the
-  // destination atomically), so the last-finishing writer wins the merge
-  // — and since `current` is recomputed under each writer's read, the
-  // race only loses the entry the slower writer added between read and
-  // rename. That's the same exposure as `latest.json` writes (best-effort,
-  // last-write-wins). Per-run dirs themselves are race-free.
-  const tmp = `${indexPath}.${randomBytes(6).toString("hex")}.tmp`;
-  await writeFile(tmp, JSON.stringify(current, null, 2), "utf-8");
-  await rename(tmp, indexPath);
+    await writeAtomicArtifact(indexPath, JSON.stringify(current, null, 2));
+  });
 }
 
 /**
@@ -135,15 +139,17 @@ export async function mirrorRuntimeResultToLatest(
   runId: string,
 ): Promise<void> {
   const src = path.join(missionRunDir(root, missionId, runId), "runtime-result.yaml");
-  try {
-    await stat(src);
-  } catch {
-    return;
-  }
-  const dst = path.join(missionDir(root, missionId), "runtime-result.yaml");
-  const tmp = `${dst}.tmp`;
-  await copyFile(src, tmp);
-  await rename(tmp, dst);
+  await mkdir(missionRunsDir(root, missionId), { recursive: true });
+  await withArtifactTransaction(missionRunsIndex(root, missionId), async () => {
+    let latest: LatestRunPointer | undefined;
+    try { latest = LatestRunPointerSchema.parse(JSON.parse(await readFile(missionLatestPointer(root, missionId), "utf8"))); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
+    if (latest && latest.run_id !== runId) return;
+    let content: string;
+    try { content = await readFile(src, "utf8"); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") return; throw error; }
+    await writeAtomicArtifact(path.join(missionDir(root, missionId), "runtime-result.yaml"), content);
+  });
 }
 
 /**
@@ -167,49 +173,26 @@ export async function pruneOldRuns(
     throw new Error("max_runs_per_mission must be a positive integer or null");
   }
   const indexPath = missionRunsIndex(root, missionId);
-  let current: { schema_version: "uh.runs-index.v0"; runs: RunsIndexEntry[] };
-  try {
-    const raw = await readFile(indexPath, "utf-8");
-    current = RunsIndexSchema.parse(JSON.parse(raw));
-  } catch {
-    // No index yet (mission has never run) or it's corrupt — either way
-    // there's nothing for retention to prune.
-    return 0;
-  }
-  const nonArchived = current.runs.filter((r) => r.archived !== true);
-  if (nonArchived.length <= max) {
-    return 0;
-  }
-  // Sort by started_at ASC so the oldest entries are at the front.
-  // Tie-break on run_id to keep the order deterministic when two runs
-  // share an ISO timestamp (the `_make_run_id()` minute granularity makes
-  // collisions plausible under load).
-  const oldestFirst = [...nonArchived].sort((a, b) => {
-    if (a.started_at !== b.started_at) return a.started_at < b.started_at ? -1 : 1;
-    return a.run_id < b.run_id ? -1 : 1;
-  });
-  const pruneCount = nonArchived.length - max;
-  const toPrune = oldestFirst.slice(0, pruneCount);
-  // Flip the archived flag on the in-memory entries (lookup by run_id —
-  // we don't depend on indices because the sort reordered them).
-  const archivedIds = new Set(toPrune.map((r) => r.run_id));
-  for (const entry of current.runs) {
-    if (archivedIds.has(entry.run_id)) {
+  await mkdir(missionRunsDir(root, missionId), { recursive: true });
+  return withArtifactTransaction(indexPath, async () => {
+    let current: { schema_version: "uh.runs-index.v0"; runs: RunsIndexEntry[] };
+    try {
+      current = RunsIndexSchema.parse(JSON.parse(await readFile(indexPath, "utf-8")));
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code === "ENOENT") return 0;
+      throw error;
+    }
+    // Active attempts retain their evidence regardless of the completed-run cap.
+    const settled = current.runs.filter((entry) => !entry.archived && entry.status !== "running");
+    if (settled.length <= max) return 0;
+    settled.sort((a, b) => a.started_at.localeCompare(b.started_at) || a.run_id.localeCompare(b.run_id));
+    const toPrune = settled.slice(0, settled.length - max);
+    for (const entry of toPrune) assertValidRunId(entry.run_id);
+    for (const entry of toPrune) {
+      await rm(missionRunDir(root, missionId, entry.run_id), { recursive: true, force: true });
       entry.archived = true;
     }
-  }
-  // Best-effort per-run dir removal. `force: true` already swallows
-  // ENOENT, so re-running prune after a partial failure converges.
-  for (const entry of toPrune) {
-    await rm(missionRunDir(root, missionId, entry.run_id), { recursive: true, force: true });
-  }
-  // Atomic write via the same unique-tmp rename strategy as
-  // appendRunsIndexEntry. Two writers (e.g. prune + a concurrent
-  // appendRunsIndexEntry from a still-finishing terminal-status flip)
-  // could still race on the read-modify-write window, but each rename
-  // is atomic and per-writer staging files don't collide.
-  const tmp = `${indexPath}.${randomBytes(6).toString("hex")}.tmp`;
-  await writeFile(tmp, JSON.stringify(current, null, 2), "utf-8");
-  await rename(tmp, indexPath);
-  return pruneCount;
+    await writeAtomicArtifact(indexPath, JSON.stringify(current, null, 2));
+    return toPrune.length;
+  });
 }
diff --git a/src/harness/runtime-accounting.ts b/src/harness/runtime-accounting.ts
new file mode 100644
index 0000000..ac1b080
--- /dev/null
+++ b/src/harness/runtime-accounting.ts
@@ -0,0 +1,266 @@
+import { readFile } from "node:fs/promises";
+import { createHash } from "node:crypto";
+import path from "node:path";
+import { parse } from "yaml";
+import { RuntimeResultSchema, type RuntimeResultDocument } from "../schema/artifacts.js";
+import { RuntimeRecoveryRecordSchema } from "../schema/runtime-control.js";
+import { assertWritableArtifact } from "../adapters/_artifact-context.js";
+import { assertSafeMissionId } from "./mission.js";
+import { assertValidRunId } from "./run-id.js";
+import { aggregateRuntimeUsage, isUsageNumber, type RuntimeAccountingFacts, type RuntimeUsage } from "./usage.js";
+import { estimateOperatorCost, loadOperatorPriceTable, operatorPriceFor, type OperatorPriceTable } from "./cost-table.js";
+
+/** Token totals a run record carries: the sums of what its native stream measured. */
+export type RunTokenTotals = { input?: number; output?: number; cache_read?: number; cache_write?: number };
+
+/** Project canonical usage counters onto the run-record token totals; undefined when nothing was measured. */
+export function tokenTotalsFromUsage(usage: Pick<RuntimeUsage, "input_tokens" | "output_tokens" | "cache_read_tokens" | "cache_write_tokens"> | undefined): RunTokenTotals | undefined {
+  if (!usage) return undefined;
+  const totals: RunTokenTotals = {};
+  if (isUsageNumber(usage.input_tokens)) totals.input = usage.input_tokens;
+  if (isUsageNumber(usage.output_tokens)) totals.output = usage.output_tokens;
+  if (isUsageNumber(usage.cache_read_tokens)) totals.cache_read = usage.cache_read_tokens;
+  if (isUsageNumber(usage.cache_write_tokens)) totals.cache_write = usage.cache_write_tokens;
+  return Object.keys(totals).length > 0 ? totals : undefined;
+}
+
+/** Account for each recorded native recovery attempt once, including failures and missing measurements. */
+export async function readRuntimeAccounting(root: string, missionId: string, runIds: string[]): Promise<{ facts: RuntimeAccountingFacts; attemptRunIds: string[]; receipts: Array<{ runId: string; digest: string }> }> {
+  assertSafeMissionId(missionId);
+  const missionDir = path.join(root, ".harness", "missions", missionId);
+  const priceTable = await loadOperatorPriceTable(root);
+  const seen = new Set<string>();
+  const results: Array<RuntimeAccountingFacts | undefined> = [];
+  const receipts: Array<{ runId: string; digest: string }> = [];
+  for (const initialRunId of runIds) {
+    let runId: string | undefined = initialRunId;
+    const chain = new Set<string>();
+    while (runId) {
+      assertValidRunId(runId);
+      if (chain.has(runId)) throw new Error("Circular runtime recovery lineage");
+      chain.add(runId);
+      if (seen.has(runId)) break;
+      seen.add(runId);
+      const directory = path.join(missionDir, "runs", runId);
+      const resultPath = path.join(directory, "runtime-result.yaml");
+      const recoveryPath = path.join(directory, "runtime-recovery.json");
+      for (const file of [directory, resultPath, recoveryPath]) await assertWritableArtifact(missionDir, file);
+      try {
+        const raw = await readFile(resultPath, "utf8");
+        const result = RuntimeResultSchema.parse(parse(raw));
+        if (result.mission_id !== missionId) throw new Error("Runtime accounting identity mismatch");
+        results.push(await runtimeAccountingFacts(result, directory, priceTable));
+        receipts.push({ runId, digest: `sha256:${createHash("sha256").update(raw).digest("hex")}` });
+      } catch (error) {
+        if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
+        results.push(undefined);
+      }
+      try {
+        const recovery = RuntimeRecoveryRecordSchema.parse(JSON.parse(await readFile(recoveryPath, "utf8")));
+        runId = recovery.source_run_id;
+      } catch (error) {
+        if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
+        runId = undefined;
+      }
+    }
+  }
+  return { facts: aggregateRuntimeUsage(results), attemptRunIds: [...seen], receipts };
+}
+
+/**
+ * The accounting facts one recorded run contributes: its own reported usage and
+ * cost when it has them, otherwise the tokens and price resolved from its
+ * native event stream and the operator price table.
+ */
+async function runtimeAccountingFacts(result: RuntimeResultDocument, runDir: string, priceTable: OperatorPriceTable | undefined): Promise<RuntimeAccountingFacts> {
+  const resultCostUsd = isUsageNumber(result.cost_usd)
+    ? result.cost_usd
+    : isUsageNumber(result.usage?.cost_usd) ? result.usage?.cost_usd : undefined;
+  const native = result.runtime === "command-code" ? await readNativeCostFacts(runDir) : undefined;
+  const resolved = resolveRunCost({
+    runtime: result.runtime,
+    resultCostUsd,
+    resultCostBasis: result.cost_basis
+      ?? (result.cost_usd === undefined || result.cost_usd === result.usage?.cost_usd ? result.usage?.cost_basis : undefined),
+    native,
+    priceTable,
+  });
+  const estimatedFromTable = resolved.cost_source === "estimated" && resultCostUsd === undefined;
+  const basis = estimatedFromTable ? "configured_estimate" : result.cost_basis
+    ?? (result.cost_usd === undefined || result.cost_usd === result.usage?.cost_usd ? result.usage?.cost_basis : undefined);
+  return {
+    provider: result.provider,
+    model: result.model ?? native?.model,
+    usage: result.usage ?? native?.usage,
+    ...(resolved.cost_usd !== undefined ? { cost_usd: resolved.cost_usd } : {}),
+    ...(basis !== undefined ? { cost_basis: basis } : {}),
+  };
+}
+
+/* -------------------------------------------------------------------------- */
+/* Cost provenance                                                            */
+/* -------------------------------------------------------------------------- */
+
+/** Where a run's cost came from, or why it is unknown. */
+export type ResolvedRunCost = {
+  cost_usd?: number;
+  cost_source?: "reported" | "estimated";
+  cost_unknown_reason?: string;
+};
+
+/** What a run's native event stream discloses about tokens and price. */
+export type NativeCostFacts = {
+  /** Per-request token sums, present only for counters the stream reported for every request. */
+  usage?: RuntimeUsage;
+  /** A USD amount the stream itself reported, when it carried one. */
+  reported_cost_usd?: number;
+  /** The model the stream attributed usage to, when it named exactly one. */
+  model?: string;
+  /** True when at least one native event carried a usage object. */
+  token_counts?: boolean;
+};
+
+/** Command Code names token counters in camelCase; canonical usage uses snake_case. */
+const TOKEN_FIELDS = [
+  { canonical: "input_tokens", aliases: ["inputTokens", "input_tokens"] },
+  { canonical: "output_tokens", aliases: ["outputTokens", "output_tokens"] },
+  { canonical: "cache_read_tokens", aliases: ["cacheReadTokens", "cache_read_tokens"] },
+  { canonical: "cache_write_tokens", aliases: ["cacheWriteTokens", "cache_write_tokens"] },
+] as const;
+
+function asRecord(value: unknown): Record<string, unknown> | undefined {
+  return value && typeof value === "object" && !Array.isArray(value) ? value as Record<string, unknown> : undefined;
+}
+
+function firstNumber(record: Record<string, unknown> | undefined, keys: readonly string[]): number | undefined {
+  if (!record) return undefined;
+  for (const key of keys) {
+    const value = record[key];
+    if (isUsageNumber(value)) return value;
+  }
+  return undefined;
+}
+
+/** The usage object an event may carry at the top level, on its message, or on its result. */
+function usageObjectOf(event: Record<string, unknown>): Record<string, unknown> | undefined {
+  return asRecord(event.usage) ?? asRecord(asRecord(event.message)?.usage) ?? asRecord(asRecord(event.result)?.usage);
+}
+
+/**
+ * Reduce a native event stream to the tokens and price it discloses.
+ *
+ * Real Command Code streams carry a `model_request_end` event per model call
+ * with `usage.inputTokens` and friends, and the same usage object repeated on
+ * the matching `turn_end` — summing both would double count, so `turn_end` is
+ * consulted only when the stream has no `model_request_end` at all. A `result`
+ * event may carry a price; it never contributes token counts. Reduced fixtures
+ * under `tests/fixtures/runtime-events/` carry no usage anywhere. Every case
+ * without a price must stay unknown rather than be priced from a guessed rate.
+ */
+export function nativeCostFactsFromEvents(lines: Iterable<string>): NativeCostFacts {
+  const models = new Set<string>();
+  const requestUsages: Array<Record<string, unknown>> = [];
+  const turnEndUsages: Array<Record<string, unknown>> = [];
+  let sawModelRequestEnd = false;
+  let reportedCost: number | undefined;
+  for (const line of lines) {
+    const trimmed = line.trim();
+    if (trimmed.length === 0) continue;
+    let parsed: unknown;
+    try { parsed = JSON.parse(trimmed); } catch { continue; }
+    const event = asRecord(parsed);
+    if (!event) continue;
+    const type = typeof event.type === "string" ? event.type : undefined;
+    if (type === "model_request_end") sawModelRequestEnd = true;
+    const model = typeof event.model === "string" ? event.model : asRecord(event.message)?.model;
+    if (typeof model === "string") models.add(model);
+    const usage = usageObjectOf(event);
+    if (usage) {
+      if (type === "model_request_end") requestUsages.push(usage);
+      else if (type === "turn_end") turnEndUsages.push(usage);
+    }
+    const eventCost = firstNumber(event, ["cost_usd", "total_cost_usd"])
+      ?? firstNumber(usage, ["cost_usd", "costUsd", "total_cost_usd"]);
+    if (eventCost !== undefined) reportedCost = eventCost;
+  }
+  const chosen = sawModelRequestEnd ? requestUsages : turnEndUsages;
+  const totals = new Map<string, number>();
+  const incomplete = new Set<string>();
+  let tokenCounts = false;
+  for (const usage of chosen) {
+    // A usage object with no token counter (e.g. a terminal record that only
+    // carries a price) is not a token measurement and must not invalidate the
+    // counters other events reported.
+    const counted = TOKEN_FIELDS.map((field) => [field.canonical, firstNumber(usage, field.aliases)] as const);
+    if (counted.some(([, value]) => value !== undefined)) {
+      tokenCounts = true;
+      for (const [canonical, value] of counted) {
+        if (value === undefined) { incomplete.add(canonical); continue; }
+        if (!incomplete.has(canonical)) totals.set(canonical, (totals.get(canonical) ?? 0) + value);
+      }
+    }
+  }
+  const facts: NativeCostFacts = {};
+  if (tokenCounts) facts.token_counts = true;
+  if (reportedCost !== undefined) facts.reported_cost_usd = reportedCost;
+  if (models.size === 1) facts.model = [...models][0];
+  const usage: RuntimeUsage = { source: "runtime" };
+  for (const field of TOKEN_FIELDS) {
+    const total = totals.get(field.canonical);
+    if (total !== undefined) (usage as unknown as Record<string, number>)[field.canonical] = total;
+  }
+  if (Object.keys(usage).length > 1) facts.usage = usage;
+  return facts;
+}
+
+/** Read a run's native event stream; a missing or unreadable log discloses nothing. */
+export async function readNativeCostFacts(runDir: string): Promise<NativeCostFacts> {
+  let raw: string;
+  try { raw = await readFile(path.join(runDir, "events.ndjson"), "utf8"); }
+  catch { return {}; }
+  return nativeCostFactsFromEvents(raw.split(/\r?\n/));
+}
+
+/**
+ * Resolve a run's cost and its provenance. A price the runtime reported is
+ * `reported`; a harness-computed amount is `estimated`; when nothing priced the
+ * run it stays unknown with a reason — never zero, never a guessed number.
+ */
+export function resolveRunCost(input: {
+  runtime?: string;
+  resultCostUsd?: number;
+  resultCostBasis?: string;
+  native?: NativeCostFacts;
+  priceTable?: OperatorPriceTable;
+}): ResolvedRunCost {
+  if (isUsageNumber(input.resultCostUsd)) {
+    return {
+      cost_usd: input.resultCostUsd,
+      cost_source: input.resultCostBasis === "provider_reported" ? "reported" : "estimated",
+    };
+  }
+  if (isUsageNumber(input.native?.reported_cost_usd)) {
+    return { cost_usd: input.native.reported_cost_usd, cost_source: "reported" };
+  }
+  const model = input.native?.model;
+  if (input.native?.token_counts) {
+    const price = operatorPriceFor(input.priceTable, model);
+    if (price) {
+      const estimate = estimateOperatorCost({
+        input: input.native.usage?.input_tokens,
+        output: input.native.usage?.output_tokens,
+        cache_read: input.native.usage?.cache_read_tokens,
+        cache_write: input.native.usage?.cache_write_tokens,
+      }, price);
+      if (estimate !== undefined) return { cost_usd: estimate, cost_source: "estimated" };
+      return { cost_unknown_reason: `native stream token counts are incomplete for ${model}; refusing to price from partial measurements` };
+    }
+    return {
+      cost_unknown_reason: `native stream reported token counts but no price${model ? ` for ${model}` : ""}; add the model to .harness/prices.yaml`,
+    };
+  }
+  if (input.runtime === "command-code") {
+    return { cost_unknown_reason: "command-code native stream carries neither usage counters nor a price" };
+  }
+  return { cost_unknown_reason: "runtime reported no cost" };
+}
diff --git a/src/harness/runtime-attempt.ts b/src/harness/runtime-attempt.ts
new file mode 100644
index 0000000..6715eee
--- /dev/null
+++ b/src/harness/runtime-attempt.ts
@@ -0,0 +1,28 @@
+import { lstat, writeFile } from "node:fs/promises";
+import path from "node:path";
+import { assertWritableArtifact, type MissionArtifactContext } from "../adapters/_artifact-context.js";
+import { claimLiveRun } from "./live-runs.js";
+
+/** Run ids are immutable attempt identities, including failed and interrupted attempts. */
+export async function claimRuntimeAttempt(artifacts: MissionArtifactContext): Promise<void> {
+  for (const file of [artifacts.runtimeSessionPath, artifacts.runtimeResultPath, artifacts.stdoutPath, artifacts.eventsPath]) {
+    try {
+      await lstat(file);
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code === "ENOENT") continue;
+      throw error;
+    }
+    throw new Error(`Run already contains evidence: ${artifacts.runDir}. Resume using a new run id.`);
+  }
+  const claim = path.join(artifacts.runDir, ".attempt.claim");
+  await assertWritableArtifact(artifacts.missionDir, claim);
+  // Never remove this marker: even initialization failure consumes the attempt identity.
+  await writeFile(claim, "", { flag: "wx" });
+  // Make the attempt discoverable from the project root. A registry write
+  // failure must never abort a run, so it is best-effort.
+  try {
+    await claimLiveRun(artifacts);
+  } catch {
+    // ignored: the run is still valid, it just will not appear in `uh ps`.
+  }
+}
diff --git a/src/harness/runtime-command.ts b/src/harness/runtime-command.ts
new file mode 100644
index 0000000..b636b0d
--- /dev/null
+++ b/src/harness/runtime-command.ts
@@ -0,0 +1,39 @@
+import { access, readFile } from "node:fs/promises";
+import path from "node:path";
+
+/** Invoke explicit Node entrypoints and npm-installed CLIs without passing arguments through cmd.exe. */
+export async function resolveRuntimeCommand(command: string, args: string[], environment: NodeJS.ProcessEnv = process.env): Promise<{ command: string; args: string[] }> {
+  if (process.platform !== "win32" || /\.(exe|com)$/i.test(command)) return { command, args };
+  const searchPath = Object.entries(environment).find(([key]) => key.toLowerCase() === "path")?.[1] ?? "";
+  const roots = /[\\/]/.test(command) ? [""] : searchPath.split(path.delimiter).filter(Boolean);
+  for (const root of roots) {
+    const base = root ? path.join(root, command) : command;
+    if (/\.(mjs|cjs|js)$/i.test(base)) {
+      try { await access(base); }
+      catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") continue; throw error; }
+      return { command: process.execPath, args: [path.resolve(base), ...args] };
+    }
+    if (!/\.(cmd|bat)$/i.test(base)) {
+      try { await access(`${base}.exe`); return { command: `${base}.exe`, args }; }
+      catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
+    }
+    const shim = /\.(cmd|bat)$/i.test(base) ? base : `${base}.cmd`;
+    let source: string;
+    try { source = await readFile(shim, "utf8"); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") continue; throw error; }
+    const targets = [...source.matchAll(/"%dp0%[\\/]([^"\r\n]+\.(?:mjs|cjs|js))"/gi)];
+    if (targets.length !== 1) throw new Error(`Cannot safely invoke non-npm shell shim ${shim}; configure the executable and argument array explicitly`);
+    const directory = path.dirname(shim);
+    const script = path.resolve(directory, targets[0][1]);
+    const relative = path.relative(directory, script);
+    if (relative.startsWith(`..${path.sep}`) || path.isAbsolute(relative)) throw new Error("Node CLI shim target escapes its installation directory");
+    await access(script);
+    let node = path.join(directory, "node.exe");
+    try { await access(node); } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
+      node = "node.exe";
+    }
+    return { command: node, args: [script, ...args] };
+  }
+  return { command, args };
+}
diff --git a/src/harness/runtime-events.ts b/src/harness/runtime-events.ts
index 0325223..97a976a 100644
--- a/src/harness/runtime-events.ts
+++ b/src/harness/runtime-events.ts
@@ -1,7 +1,20 @@
-import { appendFileSync, mkdirSync, readFileSync } from "node:fs";
+import { appendFileSync, mkdirSync, readFileSync, writeFileSync } from "node:fs";
 import path from "node:path";
-import { missionLatestPointer, missionRunDir } from "./paths.js";
-import { LatestRunPointerSchema } from "../schema/runs.js";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import { parse, stringify } from "yaml";
+import { missionDir, missionLatestPointer, missionRunDir, missionRunsIndex } from "./paths.js";
+import {
+  LatestRunPointerSchema,
+  RunsIndexSchema,
+  type LatestRunPointer,
+  type RunsIndex,
+} from "../schema/runs.js";
+import {
+  RuntimeResultSchema,
+  RuntimeSessionSchema,
+  type RuntimeResultDocument,
+  type RuntimeSessionDocument,
+} from "../schema/artifacts.js";
 
 export interface RuntimeCancelledEventInput {
   root: string;
@@ -14,33 +27,67 @@ export interface RuntimeCancelledEventInput {
   timestamp?: string;
 }
 
+function readLatestPointer(root: string, missionId: string): LatestRunPointer | null {
+  try {
+    return LatestRunPointerSchema.parse(JSON.parse(readFileSync(missionLatestPointer(root, missionId), "utf-8")));
+  } catch {
+    return null;
+  }
+}
+
+function resolveRunId(input: RuntimeCancelledEventInput): string | null {
+  if (input.runId !== undefined) return input.runId;
+  const pointer = readLatestPointer(input.root, input.missionId);
+  if (pointer) return pointer.run_id;
+  if (process.env.UH_QUIET_CANCEL !== "1") {
+    process.stderr.write(
+      `[uh] runtime.cancelled skipped: no latest.json for mission ${input.missionId} (no run has started)\n`,
+    );
+  }
+  return null;
+}
+
+function readRunsIndex(root: string, missionId: string): RunsIndex | null {
+  try {
+    return RunsIndexSchema.parse(JSON.parse(readFileSync(missionRunsIndex(root, missionId), "utf-8")));
+  } catch {
+    return null;
+  }
+}
+
+function readRuntimeSession(root: string, missionId: string, runId: string): RuntimeSessionDocument | null {
+  try {
+    const result = RuntimeSessionSchema.safeParse(parse(readFileSync(
+      path.join(missionRunDir(root, missionId, runId), "runtime-session.yaml"),
+      "utf-8",
+    )));
+    return result.success ? result.data : null;
+  } catch {
+    return null;
+  }
+}
+
+function readRuntimeResult(root: string, missionId: string, runId: string): RuntimeResultDocument | null {
+  try {
+    const result = RuntimeResultSchema.safeParse(parse(readFileSync(
+      path.join(missionRunDir(root, missionId, runId), "runtime-result.yaml"),
+      "utf-8",
+    )));
+    return result.success ? result.data : null;
+  } catch {
+    return null;
+  }
+}
+
 /**
- * UH-82: append a `runtime.cancelled` event to the active run's
- * `events.ndjson`. The active run id is discovered by reading
- * `latest.json` synchronously. When no pointer exists (no run was ever
- * started for this mission) we skip with a one-line stderr warning so
- * operators debugging a missing cancel event can see the cause. Set
- * `UH_QUIET_CANCEL=1` to suppress (used in tests).
+ * UH-82: append a `runtime.cancelled` event to the selected run's
+ * `events.ndjson`. The run id is discovered from `latest.json` only when the
+ * caller did not provide one. This helper intentionally remains synchronous:
+ * it is called directly from signal handling before the process exits.
  */
 export function appendRuntimeCancelledEvent(input: RuntimeCancelledEventInput): string | null {
-  let runId: string;
-  if (input.runId !== undefined) {
-    runId = input.runId;
-  } else {
-    const pointerPath = missionLatestPointer(input.root, input.missionId);
-    try {
-      const raw = readFileSync(pointerPath, "utf-8");
-      const pointer = LatestRunPointerSchema.parse(JSON.parse(raw));
-      runId = pointer.run_id;
-    } catch {
-      if (process.env.UH_QUIET_CANCEL !== "1") {
-        process.stderr.write(
-          `[uh] runtime.cancelled skipped: no latest.json for mission ${input.missionId} (no run has started)\n`,
-        );
-      }
-      return null;
-    }
-  }
+  const runId = resolveRunId(input);
+  if (!runId) return null;
   const runDir = missionRunDir(input.root, input.missionId, runId);
   const eventsPath = path.join(runDir, "events.ndjson");
   mkdirSync(runDir, { recursive: true });
@@ -52,9 +99,159 @@ export function appendRuntimeCancelledEvent(input: RuntimeCancelledEventInput):
     run_id: runId,
     signal: input.signal,
   };
-  if (input.source !== undefined) {
-    payload.source = input.source;
-  }
+  if (input.source !== undefined) payload.source = input.source;
   appendFileSync(eventsPath, JSON.stringify(payload) + "\n", "utf-8");
   return eventsPath;
 }
+
+function cancelledResult(
+  input: RuntimeCancelledEventInput,
+  runId: string,
+  startedAt: string,
+  finishedAt: string,
+): RuntimeResultDocument {
+  const existing = readRuntimeResult(input.root, input.missionId, runId);
+  const errors = existing?.errors.includes("Run cancelled by signal")
+    ? existing.errors
+    : [...(existing?.errors ?? []), "Run cancelled by signal"];
+  return RuntimeResultSchema.parse({
+    ...(existing ?? {}),
+    schema_version: "uh.runtime-result.v0",
+    mission_id: input.missionId,
+    runtime: input.runtime,
+    status: "cancelled",
+    started_at: startedAt,
+    finished_at: finishedAt,
+    exit_code: 143,
+    prompt_path: existing?.prompt_path ?? relativeArtifactPath(input.root, path.join(missionRunDir(input.root, input.missionId, runId), "prompt.md")),
+    stdout_path: existing?.stdout_path ?? relativeArtifactPath(input.root, path.join(missionRunDir(input.root, input.missionId, runId), "runtime.stdout.log")),
+    stderr_path: existing?.stderr_path ?? relativeArtifactPath(input.root, path.join(missionRunDir(input.root, input.missionId, runId), "runtime.stderr.log")),
+    diff_path: existing?.diff_path ?? relativeArtifactPath(input.root, path.join(missionRunDir(input.root, input.missionId, runId), "diff.patch")),
+    errors,
+  });
+}
+
+function cancelledSession(
+  input: RuntimeCancelledEventInput,
+  runId: string,
+  startedAt: string,
+  finishedAt: string,
+): RuntimeSessionDocument {
+  const existing = readRuntimeSession(input.root, input.missionId, runId);
+  return RuntimeSessionSchema.parse({
+    ...(existing ?? {}),
+    schema_version: "uh.runtime-session.v0",
+    mission_id: input.missionId,
+    runtime: input.runtime,
+    status: "failed",
+    exit_code: 143,
+    started_at: startedAt,
+    finished_at: finishedAt,
+  });
+}
+
+function writeRunTerminalArtifacts(
+  input: RuntimeCancelledEventInput,
+  runId: string,
+  startedAt: string,
+  finishedAt: string,
+): void {
+  const runDir = missionRunDir(input.root, input.missionId, runId);
+  try {
+    mkdirSync(runDir, { recursive: true });
+  } catch {
+    // Individual artifact writes below still get an independent attempt.
+  }
+  try {
+    writeFileSync(path.join(runDir, "runtime-result.yaml"), stringify(cancelledResult(input, runId, startedAt, finishedAt)), "utf-8");
+  } catch {
+    // Result persistence is independent from the other terminal facts.
+  }
+  try {
+    writeFileSync(path.join(runDir, "runtime-session.yaml"), stringify(cancelledSession(input, runId, startedAt, finishedAt)), "utf-8");
+  } catch {
+    // Session persistence is independent from the result/index writes.
+  }
+}
+
+function updateRunIndex(
+  input: RuntimeCancelledEventInput,
+  runId: string,
+  finishedAt: string,
+): void {
+  const index = readRunsIndex(input.root, input.missionId);
+  if (!index) return;
+  const runs = index.runs.map((run) => run.run_id === runId
+    ? { ...run, finished_at: finishedAt, status: "cancelled" as const }
+    : run);
+  try {
+    writeFileSync(missionRunsIndex(input.root, input.missionId), JSON.stringify({ ...index, runs }, null, 2), "utf-8");
+  } catch {
+    // The run-scoped result/session remain useful when the index is unwritable.
+  }
+}
+
+function updateCanonicalMirrors(
+  input: RuntimeCancelledEventInput,
+  runId: string,
+  startedAt: string,
+  finishedAt: string,
+): void {
+  const pointer = readLatestPointer(input.root, input.missionId);
+  if (!pointer || pointer.run_id !== runId) return;
+  const updatedPointer = { ...pointer, finished_at: finishedAt, status: "cancelled" as const };
+  try {
+    writeFileSync(missionLatestPointer(input.root, input.missionId), JSON.stringify(updatedPointer), "utf-8");
+  } catch {
+    // Run-scoped terminal facts do not depend on the latest pointer write.
+  }
+  try {
+    const result = cancelledResult(input, runId, startedAt, finishedAt);
+    writeFileSync(path.join(missionDir(input.root, input.missionId), "runtime-result.yaml"), stringify(result), "utf-8");
+  } catch {
+    // Preserve independent result/session/index persistence.
+  }
+  try {
+    const session = cancelledSession(input, runId, startedAt, finishedAt);
+    writeFileSync(path.join(missionDir(input.root, input.missionId), "runtime-session.yaml"), stringify(session), "utf-8");
+  } catch {
+    // Preserve independent result/index persistence.
+  }
+}
+
+export function finalizeRuntimeCancelledRun(input: RuntimeCancelledEventInput): string | null {
+  const runId = resolveRunId(input);
+  if (!runId) return null;
+  const selectedInput = { ...input, runId };
+  const finishedAt = input.timestamp ?? new Date().toISOString();
+  const index = readRunsIndex(input.root, input.missionId);
+  const selectedEntry = index?.runs.find((run) => run.run_id === runId);
+  const existingSession = readRuntimeSession(input.root, input.missionId, runId);
+  const startedAt = existingSession?.started_at ?? selectedEntry?.started_at ?? finishedAt;
+
+  let eventPath: string | null = null;
+  try {
+    eventPath = appendRuntimeCancelledEvent(selectedInput);
+  } catch {
+    // Event append failure must not prevent terminal result/session/index writes.
+  }
+  try {
+    const runDir = missionRunDir(input.root, input.missionId, runId);
+    mkdirSync(runDir, { recursive: true });
+    appendFileSync(path.join(runDir, "events.ndjson"), `${JSON.stringify({
+      event: "runtime.finished",
+      timestamp: finishedAt,
+      runtime: input.runtime,
+      mission_id: input.missionId,
+      run_id: runId,
+      status: "cancelled",
+      exit_code: 143,
+    })}\n`, "utf-8");
+  } catch {
+    // Terminal result/session/index writes below are independent of events.
+  }
+  writeRunTerminalArtifacts(selectedInput, runId, startedAt, finishedAt);
+  updateRunIndex(selectedInput, runId, finishedAt);
+  updateCanonicalMirrors(selectedInput, runId, startedAt, finishedAt);
+  return eventPath;
+}
diff --git a/src/harness/runtime-process.ts b/src/harness/runtime-process.ts
new file mode 100644
index 0000000..0dea9de
--- /dev/null
+++ b/src/harness/runtime-process.ts
@@ -0,0 +1,396 @@
+import { createHash, randomUUID } from "node:crypto";
+import { execFile, spawn, type ChildProcess } from "node:child_process";
+import { constants as fsConstants } from "node:fs";
+import { access, appendFile, mkdir, mkdtemp, readFile, rename, rm, writeFile } from "node:fs/promises";
+import path from "node:path";
+import { tmpdir } from "node:os";
+import { fileURLToPath } from "node:url";
+import { promisify } from "node:util";
+import { renameWithRetry, writeAtomicArtifact } from "./artifact-transaction.js";
+import { RuntimeCancelRequestSchema, RuntimeControlSchema, RuntimeLimitsSchema, RuntimeRouteSchema, WindowsJobResultSchema, type RuntimeLimits, type RuntimeRoute, type RuntimeStopCode } from "../schema/runtime-control.js";
+import { RuntimeSupervision } from "./runtime-supervision.js";
+import { resolveRuntimeCommand } from "./runtime-command.js";
+import type { RuntimeUsage } from "./usage.js";
+
+const execFileAsync = promisify(execFile);
+
+const GUARDIAN_CONFIG = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+  </startup>
+  <runtime>
+    <AppContextSwitchOverrides value="Switch.System.IO.UseLegacyPathHandling=false;Switch.System.IO.BlockLongPaths=false" />
+  </runtime>
+</configuration>
+`;
+
+
+type GuardianInfo = { mode: "cache" | "per_run"; path: string };
+
+function isPermissionError(error: unknown): boolean {
+  let code = "";
+  if (typeof error === "object" && error !== null && "code" in error && typeof error.code === "string") code = error.code;
+  return code === "EACCES" || code === "EPERM" || /access is denied|permission denied/i.test(String(error));
+}
+
+async function pathExists(file: string): Promise<boolean> {
+  try { await access(file); return true; } catch { return false; }
+}
+
+async function writeGuardianConfig(output: string): Promise<void> {
+  const destination = `${output}.config`;
+  const temporary = `${destination}.${process.pid}-${randomUUID()}.tmp`;
+  try {
+    await writeFile(temporary, GUARDIAN_CONFIG, { flag: "wx" });
+    try { await renameWithRetry(temporary, destination); }
+    catch (error) { if (!await pathExists(destination)) throw error; }
+  } finally {
+    await rm(temporary, { force: true }).catch(() => {});
+  }
+}
+
+async function compileGuardian(source: string, output: string, timeout: number): Promise<void> {
+  await execFileAsync("powershell.exe", [
+    "-NoLogo", "-NoProfile", "-NonInteractive", "-File",
+    fileURLToPath(new URL("../../src/harness/windows-job.ps1", import.meta.url)),
+    "-Source", source, "-Output", output,
+  ], { windowsHide: true, timeout, maxBuffer: 64 * 1024 });
+}
+
+async function prepareWindowsGuardian(jobDirectory: string, limits: RuntimeLimits): Promise<{ guardian: string; info: GuardianInfo }> {
+  const source = fileURLToPath(new URL("../../src/harness/windows-job.cs", import.meta.url));
+  const sourceHash = createHash("sha256").update(await readFile(source)).update(GUARDIAN_CONFIG).digest("hex").slice(0, 16);
+  const cacheDirectory = path.join(process.env.LOCALAPPDATA || tmpdir(), "ultimate-harness", "guardian", sourceHash);
+  const cachedGuardian = path.join(cacheDirectory, "windows-job.exe");
+  const cachedConfig = `${cachedGuardian}.config`;
+  const timeout = Math.min(limits.startup_timeout_ms ?? 30_000, limits.timeout_ms ?? 30_000);
+  const compilePerRun = async (): Promise<{ guardian: string; info: GuardianInfo }> => {
+    const guardian = path.join(jobDirectory, "windows-job.exe");
+    await writeGuardianConfig(guardian);
+    await compileGuardian(source, guardian, timeout);
+    return { guardian, info: { mode: "per_run", path: guardian } };
+  };
+
+  try {
+    await mkdir(cacheDirectory, { recursive: true });
+    await access(cacheDirectory, fsConstants.W_OK);
+  } catch (error) {
+    if (isPermissionError(error)) return compilePerRun();
+    throw error;
+  }
+  if (await pathExists(cachedGuardian)) {
+    if (!await pathExists(cachedConfig)) await writeGuardianConfig(cachedGuardian);
+    return { guardian: cachedGuardian, info: { mode: "cache", path: cachedGuardian } };
+  }
+
+  const temporary = path.join(cacheDirectory, `windows-job-${process.pid}-${randomUUID()}.tmp.exe`);
+  try {
+    try {
+      await writeGuardianConfig(cachedGuardian);
+      await compileGuardian(source, temporary, timeout);
+      try { await renameWithRetry(temporary, cachedGuardian); }
+      catch (error) { if (!await pathExists(cachedGuardian)) throw error; }
+      return { guardian: cachedGuardian, info: { mode: "cache", path: cachedGuardian } };
+    } catch (error) {
+      if (isPermissionError(error)) return compilePerRun();
+      throw error;
+    }
+  } finally {
+    await rm(temporary, { force: true }).catch(() => {});
+  }
+}
+
+/**
+ * Injectable clock and poll scheduler so tests can advance supervision time
+ * deterministically instead of waiting on wall time for stall, startup or
+ * timeout budgets to fire. Defaults are the real clock and interval.
+ */
+export interface RuntimeProcessClock {
+  /** Supervision clock: budget origin, progress stamps and deadline checks. */
+  now?: () => number;
+  /** Schedules the 100ms supervision poll; inject to fire checks manually. */
+  setInterval?: (callback: () => void, intervalMs: number) => unknown;
+  clearInterval?: (handle: unknown) => void;
+}
+
+export interface RuntimeProcessInput {
+  command: string;
+  args: string[];
+  cwd: string;
+  timeoutMs?: number;
+  limits?: RuntimeLimits;
+  onDeadline?: { grace_turns: number; grace_timeout_ms: number };
+  permissionMode?: "guard" | "yolo" | "prompt";
+  guardLogPath?: string;
+  expectedRoute?: RuntimeRoute;
+  reviewRequestSha256?: string;
+  env?: NodeJS.ProcessEnv;
+  onStdoutChunk?: (chunk: string) => void | Promise<void>;
+  getUsage?: () => RuntimeUsage | undefined;
+  cancellationSignal?: AbortSignal;
+  artifacts?: { directory: string; missionId: string; runId: string; runtime: string };
+  persistArtifact?: (file: string, content: string) => Promise<void>;
+  clock?: RuntimeProcessClock;
+}
+export interface RuntimeProcessOutput {
+  stdout: string;
+  stderr: string;
+  exitCode: number;
+  timedOut: boolean;
+  cancelled?: boolean;
+  spawnError?: string;
+  sessionId?: string;
+  peakMemoryBytes?: number;
+  settlementConfirmed?: boolean;
+  outputTruncated?: boolean;
+  nativeTerminal?: boolean;
+  nativeTerminalFailure?: string;
+  supervisionStopCode?: RuntimeStopCode;
+}
+
+/** Only accepts the ChildProcess handle allocated by this runner; never searches by title/PID. */
+function terminate(child: ChildProcess): void {
+  if (!child.pid) return;
+  if (process.platform !== "win32") {
+    try { process.kill(-child.pid, "SIGKILL"); return; } catch { /* Already exited. */ }
+  }
+  child.kill("SIGKILL");
+}
+
+/** Owns launch, live capture, supervision, cancellation and settlement in one invocation. */
+export async function runRuntimeProcess(input: RuntimeProcessInput): Promise<RuntimeProcessOutput> {
+  const limits = RuntimeLimitsSchema.parse({ ...input.limits,
+    ...(input.timeoutMs === undefined ? {} : { timeout_ms: input.timeoutMs }) });
+  const now = input.clock?.now ?? Date.now;
+  const schedulePoll = input.clock?.setInterval ?? ((callback: () => void, intervalMs: number) => setInterval(callback, intervalMs));
+  const clearPoll = input.clock?.clearInterval ?? ((handle: unknown) => clearInterval(handle as NodeJS.Timeout));
+  const started = now();
+  const expectedRoute = input.expectedRoute === undefined ? undefined : RuntimeRouteSchema.parse(input.expectedRoute);
+  const supervisor = new RuntimeSupervision(limits, started, expectedRoute, input.cwd, input.permissionMode, input.guardLogPath, input.onDeadline);
+  const scope = input.artifacts;
+  let stdout = "", stderr = "", partial = "";
+  const maxOutputBytes = limits.max_output_bytes ?? 64 * 1024 * 1024;
+  let capturedBytes = 0;
+  let outputLimitReached = false;
+  let timedOut = false, cancelled = false, stopReason: string | undefined;
+  let stopCode: RuntimeStopCode | undefined;
+  let peakMemoryBytes: number | undefined, settlementConfirmed: boolean | undefined;
+  let writes = Promise.resolve();
+  let streamError: string | undefined;
+  let lastHeartbeat = 0;
+  let finished = false;
+  let polling = false;
+  let activePoll: Promise<void> = Promise.resolve();
+  let guardianInfo: GuardianInfo | undefined;
+  const persist = async (status: "running" | "passed" | "failed" | "cancelled"): Promise<void> => {
+    if (!scope) return;
+    const controlPath = path.join(scope.directory, "runtime-control.json");
+    await (input.persistArtifact ?? writeAtomicArtifact)(controlPath, JSON.stringify(RuntimeControlSchema.parse({
+      schema_version: "uh.runtime-control.v0", mission_id: scope.missionId, run_id: scope.runId,
+      runtime: scope.runtime, controller_pid: process.pid, started_at: new Date(started).toISOString(),
+      heartbeat_at: new Date(now()).toISOString(), status, permission_mode: input.permissionMode,
+      guard_armed: supervisor.guardArmed, stop_reason: stopReason,
+      stop_code: stopCode ?? supervisor.stopCode ?? (cancelled ? "cancelled" : supervisor.terminalFailure ? "runtime_error" : undefined),
+      ready_at: supervisor.readyAt === undefined ? undefined : new Date(supervisor.readyAt).toISOString(),
+      session_id: supervisor.sessionId, turns: supervisor.turns, denials: supervisor.denials,
+      expected_route: expectedRoute,
+      review_request_sha256: input.reviewRequestSha256,
+      guardian: guardianInfo,
+      inflight_tools: supervisor.inflight.size,
+      usage: input.getUsage?.(),
+      peak_memory_bytes: peakMemoryBytes, settlement_confirmed: settlementConfirmed,
+    })));
+  };
+  let heartbeatPersistenceFailures = 0;
+  const persistHeartbeat = async (): Promise<void> => {
+    try {
+      await persist("running");
+    } catch {
+      heartbeatPersistenceFailures += 1;
+    }
+  };
+  if (scope) {
+    await mkdir(scope.directory, { recursive: true });
+    // Existing attempts must not have their evidence truncated by an accidental retry.
+    await writeFile(path.join(scope.directory, "runtime.stdout.log"), "", { flag: "wx" });
+    await writeFile(path.join(scope.directory, "runtime.stderr.log"), "", { flag: "wx" });
+    await persist("running");
+  }
+  if (input.cancellationSignal?.aborted) {
+    cancelled = true;
+    stopReason = "Cancelled before launch";
+    await persist("cancelled");
+    return { stdout, stderr, exitCode: 130, timedOut, cancelled };
+  }
+  if (limits.memory_mb && process.platform !== "win32") {
+    throw new Error("A committed process-tree memory cap requires the Windows Job backend; no unenforced fallback is permitted");
+  }
+  const executable = await resolveRuntimeCommand(input.command, input.args, input.env);
+  const temporaryJobDirectory = process.platform === "win32" && !scope ? await mkdtemp(path.join(tmpdir(), "uh-job-")) : undefined;
+  const jobDirectory = scope?.directory ?? temporaryJobDirectory;
+  let stopWrite: Promise<void> | undefined;
+  let guardian: string | undefined;
+  if (process.platform === "win32") {
+    try {
+      const prepared = await prepareWindowsGuardian(jobDirectory!, limits);
+      guardian = prepared.guardian;
+      guardianInfo = prepared.info;
+      await persist("running");
+    } catch (error) {
+      stopReason = supervisor.check(now()) ?? `Windows guardian compilation failed: ${String(error)}`;
+      stopCode = supervisor.stopCode ?? "controller_error";
+      timedOut = stopCode === "startup" || stopCode === "timeout";
+      await persist("failed");
+      if (temporaryJobDirectory) await rm(temporaryJobDirectory, { recursive: true, force: true }).catch(() => {});
+      return { stdout, stderr, exitCode: 1, timedOut, spawnError: stopReason };
+    }
+  }
+  const launch = process.platform === "win32" ? {
+    command: guardian!,
+    args: [],
+    env: input.env,
+    specification: JSON.stringify({
+      command: executable.command, args: executable.args, cwd: input.cwd, parentPid: process.pid,
+      memoryBytes: (limits.memory_mb ?? 0) * 1024 * 1024,
+      resultPath: path.join(jobDirectory!, "windows-job-result.json"),
+      stopPath: path.join(jobDirectory!, ".windows-job-stop"),
+      controlPath: scope ? path.join(scope.directory, "runtime-control.json") : undefined,
+    }),
+  } : { ...executable, env: input.env };
+  return new Promise<RuntimeProcessOutput>((resolve) => {
+    const child = spawn(launch.command, launch.args, {
+      // The Windows guardian must outlive libuv's kill-on-parent-exit job to settle its own job.
+      cwd: input.cwd, env: launch.env, detached: true,
+      windowsHide: true, stdio: ["pipe", "pipe", "pipe"],
+    });
+    child.stdin?.on("error", () => { /* Spawn errors and early process exits are handled below. */ });
+    child.stdin?.end("specification" in launch ? launch.specification : undefined);
+    const stop = (reason: string, code: RuntimeStopCode = "controller_error"): void => {
+      if (!stopReason || code === "policy") { stopReason = reason; stopCode = code; }
+      timedOut ||= code === "timeout" || code === "startup" || code === "stall";
+      if (!finished) {
+        if (process.platform === "win32") {
+          stopWrite ??= writeFile(path.join(jobDirectory!, ".windows-job-stop"), "", { flag: "wx" })
+            .catch(error => { if (error.code !== "EEXIST") terminate(child); });
+        } else terminate(child);
+      }
+    };
+    const admitOutput = (chunk: string): boolean => {
+      if (outputLimitReached) return false;
+      const bytes = Buffer.byteLength(chunk, "utf8");
+      if (bytes > maxOutputBytes - capturedBytes) {
+        outputLimitReached = true;
+        stop(`Combined runtime output exceeded ${maxOutputBytes} bytes; capture stopped`, "output_limit");
+        return false;
+      }
+      capturedBytes += bytes;
+      return true;
+    };
+    const cancel = (): void => { cancelled = true; stop("Run cancelled", "cancelled"); };
+    input.cancellationSignal?.addEventListener("abort", cancel, { once: true });
+    const enqueue = (operation: () => Promise<void>): Promise<void> => {
+      writes = writes.then(operation).catch((error: unknown) => {
+        const detail = error instanceof Error ? error.message : String(error);
+        streamError ??= detail.trim().slice(0, 512) || "unknown failure";
+        stop(`Runtime artifact or stream callback failed: ${streamError}`);
+      });
+      return writes;
+    };
+    const observe = (line: string): void => {
+      try {
+        const reason = supervisor.observe(JSON.parse(line), now());
+        if (reason) stop(reason, supervisor.stopCode);
+      } catch { /* Preserve malformed and partial bytes; the adapter classifies them. */ }
+    };
+    child.stdout?.setEncoding("utf8");
+    child.stdout?.on("data", (chunk: string) => {
+      if (!admitOutput(chunk)) return;
+      child.stdout!.pause();
+      stdout += chunk;
+      let start = 0;
+      for (let end = chunk.indexOf("\n"); end !== -1; end = chunk.indexOf("\n", start)) {
+        observe(partial + chunk.slice(start, end));
+        partial = "";
+        start = end + 1;
+      }
+      partial += chunk.slice(start);
+      enqueue(async () => {
+        if (scope) await appendFile(path.join(scope.directory, "runtime.stdout.log"), chunk);
+        await input.onStdoutChunk?.(chunk);
+        await persist("running");
+      }).finally(() => child.stdout?.resume());
+    });
+    child.stderr?.setEncoding("utf8");
+    child.stderr?.on("data", (chunk: string) => {
+      if (!admitOutput(chunk)) return;
+      child.stderr!.pause();
+      stderr += chunk;
+      const session = /session:\s*([0-9a-fA-F-]{8,})/.exec(stderr.slice(-1024));
+      if (session) supervisor.sessionId = session[1];
+      enqueue(async () => {
+        if (scope) await appendFile(path.join(scope.directory, "runtime.stderr.log"), chunk);
+      }).finally(() => child.stderr?.resume());
+    });
+    const timer = schedulePoll(() => {
+      if (finished || polling) return;
+      polling = true;
+      activePoll = (async () => {
+        const reason = supervisor.check(now());
+        if (reason) stop(reason, supervisor.stopCode);
+        if (scope) {
+          try {
+            const request = RuntimeCancelRequestSchema.parse(JSON.parse(await readFile(path.join(scope.directory, "cancel-request.json"), "utf8")));
+            if (request.mission_id === scope.missionId && request.run_id === scope.runId) cancel();
+          } catch (error) {
+            if ((error as NodeJS.ErrnoException).code !== "ENOENT") stop("Malformed or unreadable cancellation request");
+          }
+        }
+        if (!finished && now() - lastHeartbeat >= 1000) {
+          lastHeartbeat = now();
+          enqueue(persistHeartbeat);
+        }
+      })().catch(() => stop("Runtime supervision failed")).finally(() => { polling = false; });
+    }, 100);
+    let spawnError: string | undefined;
+    child.on("error", (error: Error) => { spawnError = error.message; });
+    child.on("close", (code: number | null) => {
+      finished = true;
+      clearPoll(timer);
+      input.cancellationSignal?.removeEventListener("abort", cancel);
+      if (partial.trim()) observe(partial);
+      void (async () => {
+        await activePoll;
+        await writes;
+        await stopWrite;
+        if (process.platform === "win32") {
+          try {
+            const job = WindowsJobResultSchema.parse(JSON.parse((await readFile(path.join(jobDirectory!, "windows-job-result.json"), "utf8")).replace(/^\uFEFF/, "")));
+            peakMemoryBytes = job.peak_memory_bytes;
+            settlementConfirmed = job.settled;
+          } catch { settlementConfirmed = false; }
+          if (!settlementConfirmed) {
+            stopReason = "Owned process-tree settlement was not confirmed";
+            stopCode = "controller_error";
+          }
+        }
+        const supervisionFailure = supervisor.settle();
+        if (!stopReason && supervisionFailure) { stopReason = supervisionFailure; stopCode = supervisor.stopCode; }
+        const nativeCompleted = supervisor.terminal && !supervisor.terminalFailure && !supervisor.stopCode &&
+          !cancelled && !timedOut && !spawnError;
+        const exitCode = cancelled ? 130 : stopReason || spawnError || supervisor.terminalFailure ? 1 : code ?? 1;
+        const settledStatus = cancelled ? "cancelled" : nativeCompleted || exitCode === 0 ? "passed" : "failed";
+        try { await persist(settledStatus); }
+        catch { spawnError ??= "Runtime final state persistence failed"; }
+        if (temporaryJobDirectory) await rm(temporaryJobDirectory, { recursive: true, force: true }).catch(() => {});
+        const reportedStreamFailure = streamError
+          ? `Runtime artifact or stream callback failed: ${streamError}`
+          : undefined;
+        resolve({ stdout, stderr, exitCode: spawnError && exitCode === 0 ? 1 : exitCode, timedOut,
+          cancelled, spawnError: spawnError ?? (stopCode === "policy" ? stopReason : reportedStreamFailure ?? stopReason), sessionId: supervisor.sessionId, peakMemoryBytes, settlementConfirmed,
+          outputTruncated: outputLimitReached, nativeTerminal: supervisor.terminal, nativeTerminalFailure: supervisor.terminalFailure,
+          supervisionStopCode: supervisor.stopCode });
+      })();
+    });
+  });
+}
diff --git a/src/harness/runtime-recovery.ts b/src/harness/runtime-recovery.ts
new file mode 100644
index 0000000..cc23438
--- /dev/null
+++ b/src/harness/runtime-recovery.ts
@@ -0,0 +1,152 @@
+import { validateMission } from "../schema/mission.js";
+import { runtimeRegistry } from "./registry.js";
+import { mergeRuntimeConfigOverrides } from "./runtime-config-overrides.js";
+import { lstat, readFile } from "node:fs/promises";
+import path from "node:path";
+import { parse } from "yaml";
+import { RuntimeControlSchema, RuntimeRecoveryPolicySchema, RuntimeRecoveryRecordSchema, type RuntimeControl } from "../schema/runtime-control.js";
+import { RuntimeSessionSchema, RuntimeResultSchema } from "../schema/artifacts.js";
+import { assertSafeMissionId } from "./mission.js";
+import { assertValidRunId, generateRunId } from "./run-id.js";
+import { getMissionArtifactContext, assertWritableArtifact, writeArtifactFile, type MissionArtifactContext } from "../adapters/_artifact-context.js";
+import { reconcileRuntimeSettlement } from "./runtime-settlement.js";
+
+/** Who authorized a resume: an operator command, or the mission's automatic policy. */
+export type ResumeOrigin = "operator" | "policy";
+
+/**
+ * Whether a resume consumes the policy's automatic `max_resumes` budget.
+ * Operator-initiated resumes are authorized outside the loop and never do.
+ */
+export function resumeConsumesBudget(origin: ResumeOrigin): boolean {
+  return origin !== "operator";
+}
+
+/** Automatic resume budget left after prior resumes, counting only budget-consuming ones. */
+export function remainingResumeBudget(maxResumes: number, origins: readonly ResumeOrigin[]): number {
+  return Math.max(0, maxResumes - origins.filter(resumeConsumesBudget).length);
+}
+
+export interface RuntimeResume {
+  sourceRunId: string;
+  sessionId: string;
+  notes: string;
+  sourceStopCode?: RuntimeControl["stop_code"];
+  sourceStopReason?: string;
+  grace?: boolean;
+  /** Who authorized this resume; operator resumes never spend the automatic budget. */
+  origin?: ResumeOrigin;
+}
+
+/** A preserved transcript is not permission to overlap or replay an unsettled attempt. */
+export async function prepareRuntimeResume(root: string, missionId: string, runId: string, runtime: string, notes: string, origin: ResumeOrigin = "policy"): Promise<RuntimeResume> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  const suppliedNotes = notes.trim();
+  if (!suppliedNotes) notes = "No additional deadline policy notes.";
+  if (!notes.trim()) throw new Error("Resuming requires explicit recovery notes");
+  const controlPath = path.join(root, ".harness", "missions", missionId, "runs", runId, "runtime-control.json");
+  await lstat(controlPath);
+  const artifacts = await getMissionArtifactContext(root, path.join(root, ".harness", "missions", missionId, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Recovery source artifact context unavailable");
+  for (const file of [controlPath, artifacts.runtimeSessionPath, artifacts.runtimeResultPath]) await assertWritableArtifact(artifacts.missionDir, file);
+  const control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8")));
+  if (control.mission_id !== missionId || control.run_id !== runId || control.runtime !== runtime) throw new Error("Recovery source identity mismatch");
+  if (control.stop_code === "controller_lost") await reconcileRuntimeSettlement(root, missionId, runId);
+  const session = RuntimeSessionSchema.parse(parse(await readFile(artifacts.runtimeSessionPath, "utf8")));
+  const result = RuntimeResultSchema.parse(parse(await readFile(artifacts.runtimeResultPath, "utf8")));
+  if (session.mission_id !== missionId || session.runtime !== runtime || result.mission_id !== missionId || result.runtime !== runtime) {
+    throw new Error("Recovery source identity mismatch");
+  }
+  if (control.status === "running" || session.status === "running" || session.status === "planned") throw new Error("Previous attempt must be fully settled before resuming");
+  if (control.stop_code === "policy" || control.stop_code === "route_mismatch" || control.stop_code === "route_unverified") throw new Error("Policy-stopped attempts cannot be automatically resumed");
+  if (!control.session_id) throw new Error("Previous attempt did not record a native session id; refusing to restart from scratch");
+  const sourceStopReason = control.stop_reason ?? control.stop_code;
+  const grace = control.stop_code === "deadline";
+  const combinedNotes = grace
+    ? `${notes}\nYour time budget is exhausted. Write your deliverable now with everything you have found so far. Mark it clearly as INCOMPLETE at the top, and end it with a section titled "Missing for the next step" listing what you did not get to and where you stopped. Do not start new investigation. Then stop.`
+    : `${notes}\nYou were stopped: ${sourceStopReason}. Do not repeat that action. Inspect existing outputs before continuing.`;
+  return { sourceRunId: runId, sessionId: control.session_id, notes: combinedNotes, sourceStopCode: control.stop_code, sourceStopReason, grace, origin };
+}
+
+export function recoveryPrompt(resume: RuntimeResume): string {
+  return resume.grace
+    ? `\n\n## Recovery of prior attempt ${resume.sourceRunId}\n${resume.notes}\n`
+    : `\n\n## Recovery of prior attempt ${resume.sourceRunId}\nContinue the saved native session. Inspect existing outputs and prior tool results; do not repeat completed work.\n${resume.notes}\n`;
+}
+
+export interface RecoverableRuntimeResult {
+  runId?: string;
+  result?: { status?: string };
+}
+export interface RecoveryRunOptions {
+  runId: string;
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
+}
+
+/** Own the bounded recovery loop within the invoking CLI, not a detached second controller. */
+export async function runWithRuntimeRecovery<T extends RecoverableRuntimeResult>(input: {
+  root: string;
+  missionId: string;
+  runtime: string;
+  runId: string;
+  recovery?: unknown;
+  extraRuntimeConfigOverrides?: Record<string, unknown>;
+  cancellationSignal?: AbortSignal;
+  onAttempt?: (runId: string) => Promise<void>;
+  /**
+   * Resumes that already produced the attempt this loop starts from. Operator
+   * resumes are free: they never reduce the automatic `max_resumes` budget.
+   */
+  priorResumeOrigins?: readonly ResumeOrigin[];
+  run: (options: RecoveryRunOptions) => Promise<T>;
+}): Promise<T> {
+  const policy = input.recovery === undefined ? undefined : RuntimeRecoveryPolicySchema.parse(input.recovery);
+  if (policy && !["oh-my-pi", "command-code", "claude-code"].includes(input.runtime)) throw new Error("This runtime does not implement native bounded session recovery");
+  let runId = input.runId;
+  let overrides = input.extraRuntimeConfigOverrides;
+  let graceAttempted = false;
+  // Prior resumes already spent part of the budget; operator resumes spent none.
+  for (let resumed = (input.priorResumeOrigins ?? []).filter(resumeConsumesBudget).length; ; resumed++) {
+    await input.onAttempt?.(runId);
+    const result = await input.run({ runId, extraRuntimeConfigOverrides: overrides });
+    if (!policy || input.cancellationSignal?.aborted || result.result?.status === "passed") return result;
+    const control = RuntimeControlSchema.parse(JSON.parse(await readFile(path.join(input.root, ".harness", "missions", input.missionId, "runs", runId, "runtime-control.json"), "utf8")));
+    if (graceAttempted) return result;
+    if (policy.on_deadline && control.stop_code === "deadline" && control.session_id) {
+      const notes = policy.on_deadline.notes ?? policy.notes;
+      await prepareRuntimeResume(input.root, input.missionId, runId, input.runtime, notes);
+      overrides = {
+        ...input.extraRuntimeConfigOverrides,
+        resume_session: undefined,
+        resume_from_run: runId,
+        recovery_notes: notes,
+        recovery_grace: true,
+      };
+      runId = generateRunId();
+      graceAttempted = true;
+      continue;
+    }
+    if (resumed >= policy.max_resumes || !control.stop_code || !["startup", "stall", "timeout", "repeated_failure", "denial_budget"].includes(control.stop_code) || !control.session_id) return result;
+    const resume = await prepareRuntimeResume(input.root, input.missionId, runId, input.runtime, policy.notes);
+    overrides = { ...input.extraRuntimeConfigOverrides, resume_session: undefined, resume_from_run: runId, recovery_notes: policy.notes };
+    runId = generateRunId();
+  }
+}
+
+export async function persistRuntimeRecovery(artifacts: MissionArtifactContext, resume: RuntimeResume): Promise<void> {
+  const record = RuntimeRecoveryRecordSchema.parse({
+    schema_version: "uh.runtime-recovery.v0", source_run_id: resume.sourceRunId,
+    session_id: resume.sessionId, notes: resume.notes,
+    source_stop_code: resume.sourceStopCode, source_stop_reason: resume.sourceStopReason,
+    grace: resume.grace ?? false,
+  });
+  await writeArtifactFile(artifacts.missionDir, path.join(artifacts.runDir, "runtime-recovery.json"), JSON.stringify(record, null, 2));
+}
+
+export async function resolveRuntimeRecoveryPolicy(root: string, missionPath: string, runtime: string, overrides?: Record<string, unknown>) {
+  const mission = validateMission(parse(await readFile(missionPath, "utf8")));
+  const adapter = (await runtimeRegistry.load(root, runtime)).document;
+  const config = { ...adapter.config?.runtime_config, ...mergeRuntimeConfigOverrides(mission, overrides) };
+  return { missionId: mission.id, recovery: config.recovery };
+}
diff --git a/src/harness/runtime-requirements.ts b/src/harness/runtime-requirements.ts
index 88c9ab4..1fceee0 100644
--- a/src/harness/runtime-requirements.ts
+++ b/src/harness/runtime-requirements.ts
@@ -53,10 +53,10 @@ export function evaluateAdapterEligibility(
 
   if (
     requirements.min_context_tokens !== undefined &&
-    adapterCaps.max_context_tokens < requirements.min_context_tokens
+    (adapterCaps.max_context_tokens === null || adapterCaps.max_context_tokens < requirements.min_context_tokens)
   ) {
     exclusionReasons.push(
-      `min_context_tokens (${requirements.min_context_tokens} > ${adapterCaps.max_context_tokens})`,
+      `min_context_tokens (${requirements.min_context_tokens} > ${adapterCaps.max_context_tokens ?? "unknown runtime model limit"})`,
     );
   }
 
diff --git a/src/harness/runtime-resources.ts b/src/harness/runtime-resources.ts
new file mode 100644
index 0000000..ed447e0
--- /dev/null
+++ b/src/harness/runtime-resources.ts
@@ -0,0 +1,79 @@
+import { freemem } from "node:os";
+import { TeamResourceLimitsSchema, type TeamResourceLimits } from "../schema/runtime-control.js";
+
+
+export function workerConcurrency(count: number, input: TeamResourceLimits = {}, availableBytes = freemem()): number {
+  const limits = TeamResourceLimitsSchema.parse(input);
+  let parallel = Math.min(count, limits.max_parallel);
+  if (limits.worker_memory_mb) {
+    const availableMb = Math.floor(availableBytes / (1024 * 1024)) - limits.reserve_memory_mb;
+    parallel = Math.min(parallel, Math.floor(availableMb / limits.worker_memory_mb));
+  }
+  if (parallel < 1) throw new Error("Insufficient resource headroom to launch one worker within its memory cap");
+  return parallel;
+}
+
+/** Drain admitted work on failure; never leave background siblings running after rejection. */
+export async function mapBounded<T, R>(items: readonly T[], concurrency: number, action: (item: T) => Promise<R>): Promise<R[]> {
+  if (!Number.isInteger(concurrency) || concurrency < 1) throw new Error("Worker concurrency must be a positive integer");
+  const results = new Array<R>(items.length);
+  let next = 0;
+  let failed = false;
+  let failure: unknown;
+  await Promise.all(Array.from({ length: Math.min(items.length, concurrency) }, async () => {
+    while (!failed) {
+      const index = next++;
+      if (index >= items.length) return;
+      try { results[index] = await action(items[index]); }
+      catch (error) { if (!failed) { failed = true; failure = error; } }
+    }
+  }));
+  if (failed) throw failure;
+  return results;
+}
+
+/**
+ * Re-admit only after a whole wave settles. Cost reservations govern admission,
+ * not provider billing: an in-flight worker can exceed its reservation.
+ */
+export async function mapResourceWaves<T, R>(
+  items: readonly T[], input: TeamResourceLimits, action: (item: T) => Promise<R>,
+  options: {
+    costOf: (result: R, item: T) => Promise<number | undefined>;
+    blocked: (item: T, reason: string) => Promise<R>;
+    availableBytes?: () => number;
+  },
+): Promise<R[]> {
+  const limits = TeamResourceLimitsSchema.parse(input);
+  const results: R[] = [];
+  let completedCost = 0;
+  let blockedReason: string | undefined;
+  while (results.length < items.length && !blockedReason) {
+    let slots: number;
+    try { slots = workerConcurrency(items.length - results.length, limits, (options.availableBytes ?? freemem)()); }
+    catch (error) { blockedReason = (error as Error).message; break; }
+    if (limits.max_cost_usd !== undefined) {
+      slots = Math.min(slots, Math.floor((limits.max_cost_usd - completedCost) / limits.worker_cost_reservation_usd!));
+      if (slots < 1) { blockedReason = "Remaining team cost budget cannot reserve another worker"; break; }
+    }
+    const wave = items.slice(results.length, results.length + slots);
+    const completed = await mapBounded(wave, slots, action);
+    results.push(...completed);
+    if (limits.max_cost_usd !== undefined) {
+      for (let index = 0; index < completed.length; index++) {
+        let cost: number | undefined;
+        try { cost = await options.costOf(completed[index], wave[index]); }
+        catch { blockedReason = "Completed worker cost accounting is unavailable"; break; }
+        if (cost === undefined || !Number.isFinite(cost) || cost < 0 || !Number.isFinite(completedCost + cost)) {
+          blockedReason = "Completed worker cost is unknown; refusing further paid admission";
+          break;
+        }
+        completedCost += cost;
+      }
+    }
+  }
+  while (results.length < items.length) {
+    results.push(await options.blocked(items[results.length], blockedReason!));
+  }
+  return results;
+}
diff --git a/src/harness/runtime-settlement.ts b/src/harness/runtime-settlement.ts
new file mode 100644
index 0000000..7729c58
--- /dev/null
+++ b/src/harness/runtime-settlement.ts
@@ -0,0 +1,220 @@
+import { lstat, readFile } from "node:fs/promises";
+import path from "node:path";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import { parse, stringify } from "yaml";
+import { RuntimeControlSchema, type RuntimeControl, type RuntimeStopCode } from "../schema/runtime-control.js";
+import { RuntimeResultSchema, type RuntimeResultDocument, type RuntimeResultStatus, RuntimeSessionSchema } from "../schema/artifacts.js";
+import { assertWritableArtifact, getMissionArtifactContext } from "../adapters/_artifact-context.js";
+import { assertSafeMissionId } from "./mission.js";
+import { appendRunsIndexEntry, assertValidRunId, mirrorRuntimeResultToLatest, writeLatestPointer } from "./run-id.js";
+import { withArtifactTransaction, writeAtomicArtifact } from "./artifact-transaction.js";
+import { settleLiveRun } from "./live-runs.js";
+
+/** Reconcile a guardian's confirmed owner-loss receipt; never infer termination from a stale heartbeat. */
+export async function reconcileRuntimeSettlement(root: string, missionId: string, runId: string): Promise<boolean> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  const controlPath = path.join(root, ".harness", "missions", missionId, "runs", runId, "runtime-control.json");
+  try { await lstat(controlPath); }
+  catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") return false; throw error; }
+  const artifacts = await getMissionArtifactContext(root, path.join(root, ".harness", "missions", missionId, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Settlement artifact context unavailable");
+  await assertWritableArtifact(artifacts.missionDir, controlPath);
+  const control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8")));
+  if (control.mission_id !== missionId || control.run_id !== runId) throw new Error("Settlement receipt identity mismatch");
+  if (control.status !== "failed" || control.stop_code !== "controller_lost" || control.settlement_confirmed !== true) return false;
+  const settled = await withArtifactTransaction(path.join(artifacts.runDir, "runtime-settlement"), async () => {
+    for (const file of [artifacts.runtimeSessionPath, artifacts.runtimeResultPath]) await assertWritableArtifact(artifacts.missionDir, file);
+    let session;
+    try { session = RuntimeSessionSchema.parse(parse(await readFile(artifacts.runtimeSessionPath, "utf8"))); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") return false; throw error; }
+    if (session.mission_id !== missionId || session.runtime !== control.runtime) throw new Error("Settlement session identity mismatch");
+    if (session.status === "succeeded") throw new Error("Settlement conflicts with an already succeeded session");
+    let result;
+    try {
+      result = RuntimeResultSchema.parse(parse(await readFile(artifacts.runtimeResultPath, "utf8")));
+      if (result.mission_id !== missionId || result.runtime !== control.runtime || result.status !== "failed") throw new Error("Settlement conflicts with existing terminal evidence");
+    } catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
+    const finishedAt = result?.finished_at ?? control.heartbeat_at;
+    result ??= RuntimeResultSchema.parse({
+      schema_version: "uh.runtime-result.v0", mission_id: missionId, runtime: control.runtime,
+      status: "failed", started_at: control.started_at, finished_at: finishedAt, exit_code: 125,
+      prompt_path: relativeArtifactPath(root, artifacts.promptPath), stdout_path: relativeArtifactPath(root, artifacts.stdoutPath),
+      stderr_path: relativeArtifactPath(root, artifacts.stderrPath), errors: ["Runtime controller exited before canonical settlement"],
+      notes: "Owned process-tree termination was confirmed by the native guardian. Preserved transcripts may contain partial usage; missing usage is unknown, not zero.",
+    });
+    await writeAtomicArtifact(artifacts.runtimeResultPath, stringify(result));
+    await writeAtomicArtifact(artifacts.runtimeSessionPath, stringify(RuntimeSessionSchema.parse({
+      ...session, status: "failed", exit_code: result.exit_code ?? 125, finished_at: finishedAt,
+    })));
+    await appendRunsIndexEntry(root, missionId, { run_id: runId, runtime: control.runtime,
+      started_at: control.started_at, finished_at: finishedAt, status: "failed" });
+    await writeLatestPointer(root, missionId, { schema_version: "uh.latest-run.v0", run_id: runId,
+      started_at: control.started_at, finished_at: finishedAt, status: "failed" });
+    await mirrorRuntimeResultToLatest(root, missionId, runId);
+    return true;
+  });
+  if (settled) {
+    // Keep the project-root live-run registry in step with the canonical settlement.
+    await settleLiveRun(root, runId, {
+      status: "failed",
+      stop_code: "controller_lost",
+      settled_at: new Date().toISOString(),
+    }).catch(() => undefined);
+  }
+  return settled;
+}
+
+/** Whether a runtime-result status contradicts the terminal control receipt. */
+function resultStatusAgreesWithControl(controlStatus: RuntimeControl["status"], resultStatus: RuntimeResultStatus): boolean {
+  if (controlStatus === resultStatus) return true;
+  // `blocked` is an exit-0 refinement (the runtime produced no parseable
+  // final block) that the control receipt cannot express, so a control
+  // receipt of `passed` does not contradict a `blocked` result.
+  return controlStatus === "passed" && resultStatus === "blocked";
+}
+
+/** Which native budget a terminal event exhausted. */
+export type NativeBudgetCap = "turn" | "time";
+
+export interface NativeCapSettlementInput {
+  /** The native budget the terminal event exhausted. */
+  cap: NativeBudgetCap;
+  /** The raw native stop reason (`max_turns`, `max_time`, `timeout` …). */
+  reason: string;
+  /** The attempt is the single deadline grace delivery attempt. */
+  grace: boolean;
+  /** The attempt produced its deliverable (a non-empty final message). */
+  deliverable: boolean;
+  /** Turn count the terminal event named, when known. */
+  turns?: number;
+}
+
+export interface NativeCapSettlement {
+  status: RuntimeResultStatus;
+  stopCode: RuntimeStopCode;
+  /** Stop reason text; for a turn cap it names the cap and the turn count. */
+  reason: string;
+  /** True when the cap is the expected end of the deadline grace attempt. */
+  graceExpectedEnd: boolean;
+}
+
+/**
+ * Settle an attempt that ended on a native budget cap.
+ *
+ * A native cap is never a natural end. Outside deadline grace the attempt
+ * settles `failed` even when the model emitted a final message or the
+ * final-message sentinel, with the existing `turn_limit`/`timeout` stop code
+ * and reason — completion requires a natural end, not a cap. The single
+ * deadline grace attempt runs under a native cap of `grace_turns + 1`, so its
+ * cap is the expected end: it settles by its deliverable (`passed` when one is
+ * present, else `failed`) with stop code `deadline`, never `turn_limit`.
+ */
+export function settleNativeCap(input: NativeCapSettlementInput): NativeCapSettlement {
+  const reason = input.cap === "turn"
+    ? `Native turn cap (${input.reason}) reached${input.turns === undefined ? "" : ` after ${input.turns} turns`}`
+    : `Native time cap (${input.reason}) reached`;
+  if (input.grace) {
+    return { status: input.deliverable ? "passed" : "failed", stopCode: "deadline", reason, graceExpectedEnd: true };
+  }
+  return { status: "failed", stopCode: input.cap === "turn" ? "turn_limit" : "timeout", reason, graceExpectedEnd: false };
+}
+
+/**
+ * Rewrite a run's control receipt to a native-cap settlement.
+ *
+ * A settled control receipt is the run's authoritative terminal fact, so the
+ * deadline grace attempt records `stop_code: deadline` with the status its
+ * deliverable earned instead of the launcher exit code that ended it.
+ * Best-effort: a missing receipt is left untouched.
+ */
+export async function reconcileNativeCapSettlement(root: string, missionId: string, runId: string, settlement: NativeCapSettlement): Promise<boolean> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  const controlPath = path.join(root, ".harness", "missions", missionId, "runs", runId, "runtime-control.json");
+  const artifacts = await getMissionArtifactContext(root, path.join(root, ".harness", "missions", missionId, "mission.yaml"), runId);
+  if (!artifacts) return false;
+  let control: RuntimeControl;
+  try { control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8"))); }
+  catch { return false; }
+  if (control.mission_id !== missionId || control.run_id !== runId) return false;
+  const rewritten: RuntimeControl = {
+    ...control,
+    status: settlement.status,
+    stop_code: settlement.stopCode,
+    stop_reason: settlement.reason,
+  };
+  await withArtifactTransaction(path.join(artifacts.runDir, "runtime-settlement"), async () => {
+    await assertWritableArtifact(artifacts.missionDir, controlPath);
+    await writeAtomicArtifact(controlPath, JSON.stringify(rewritten));
+  });
+  return true;
+}
+
+/**
+ * End-of-run consistency gate: runtime-result.yaml and the
+ * runtime-control.json receipt must agree on the terminal status of a run.
+ *
+ * When they disagree, a `settlement_conflict` record carrying both values is
+ * appended to the result's errors. A confirmed settlement
+ * (`settlement_confirmed: true` on the control receipt) outranks the result:
+ * the recorded status is rewritten to the control receipt's, a non-zero exit
+ * on a confirmed `passed` settlement is annotated with
+ * `exit_code_ignored_reason` instead of overturning the settlement, and a
+ * non-zero exit is forced when the confirmed settlement failed or cancelled
+ * the run with a zero exit recorded. Without a confirmed settlement the
+ * result is never rewritten — a stale or unowned control receipt must not
+ * invent a termination (mirroring `reconcileRuntimeSettlement`). The
+ * mission-level `runtime-result.yaml` mirror is refreshed when the rewritten
+ * run is the latest pointer's run.
+ *
+ * Returns true when a conflict was detected and handled; false when the
+ * artifacts are missing/unreadable or already agree. Best-effort by design:
+ * callers must not fail a run because reconciliation itself failed.
+ */
+export async function reconcileRuntimeResultControl(root: string, missionId: string, runId: string): Promise<boolean> {
+  assertSafeMissionId(missionId);
+  assertValidRunId(runId);
+  const runDirectory = path.join(root, ".harness", "missions", missionId, "runs", runId);
+  const controlPath = path.join(runDirectory, "runtime-control.json");
+  const resultPath = path.join(runDirectory, "runtime-result.yaml");
+  // Missing or unreadable evidence agrees trivially; never create artifacts here.
+  for (const file of [controlPath, resultPath]) {
+    try { await lstat(file); }
+    catch (error) { if ((error as NodeJS.ErrnoException).code === "ENOENT") return false; throw error; }
+  }
+  let control: RuntimeControl;
+  try { control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf8"))); }
+  catch { return false; }
+  if (control.status === "running") return false;
+  let result: RuntimeResultDocument;
+  try { result = RuntimeResultSchema.parse(parse(await readFile(resultPath, "utf8"))); }
+  catch { return false; }
+  if (resultStatusAgreesWithControl(control.status, result.status)) return false;
+
+  const conflict = `settlement_conflict: runtime-result status=${result.status} exit_code=${result.exit_code ?? "unknown"};`
+    + ` runtime-control status=${control.status} stop_code=${control.stop_code ?? "none"}`
+    + ` settlement_confirmed=${control.settlement_confirmed === true}`;
+  const confirmedSettlement = control.settlement_confirmed === true;
+  const rewritten: RuntimeResultDocument = confirmedSettlement ? {
+    ...result,
+    status: control.status,
+    ...((control.status === "passed" && (result.exit_code ?? 0) !== 0)
+      ? { exit_code_ignored_reason: "runtime exited non-zero after completed native terminal event" as const }
+      : {}),
+    ...((control.status === "failed" || control.status === "cancelled") && result.exit_code === 0
+      ? { exit_code: 1 }
+      : {}),
+    errors: [...result.errors, conflict],
+  } : { ...result, errors: [...result.errors, conflict] };
+
+  const artifacts = await getMissionArtifactContext(root, path.join(root, ".harness", "missions", missionId, "mission.yaml"), runId);
+  if (!artifacts) throw new Error("Settlement artifact context unavailable");
+  await withArtifactTransaction(path.join(artifacts.runDir, "runtime-settlement"), async () => {
+    await assertWritableArtifact(artifacts.missionDir, resultPath);
+    await writeAtomicArtifact(resultPath, stringify(rewritten));
+  });
+  // Keep the mission-level mirror agreeable when this run is the latest pointer's run.
+  await mirrorRuntimeResultToLatest(root, missionId, runId).catch(() => undefined);
+  return true;
+}
diff --git a/src/harness/runtime-snapshot.ts b/src/harness/runtime-snapshot.ts
new file mode 100644
index 0000000..a99fe31
--- /dev/null
+++ b/src/harness/runtime-snapshot.ts
@@ -0,0 +1,251 @@
+import { createHash, randomUUID } from "node:crypto";
+import { createRequire } from "node:module";
+import { access, mkdir, readFile, readdir, rm, stat, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath, pathToFileURL } from "node:url";
+import { renameWithRetry } from "./artifact-transaction.js";
+
+/**
+ * Immutable, content-addressed copies of the built Tool Guard hooks.
+ *
+ * The adapters hand the runtime a hook that lives in the project's own build
+ * output. Rebuilding UH while a run is live replaces or removes that file
+ * underneath the running worker. This module publishes a closed set of the
+ * files the hook needs into a per-user cache directory named after a SHA-256 of
+ * their contents, so a live run never reads the mutable build directory again.
+ *
+ * The built hooks are NOT self-contained: each imports sibling build-output
+ * modules (`harness/tool-guard.js`, `schema/runtime-control.js`,
+ * `schema/artifacts.js`) and the npm package `zod`. The relative layout is
+ * preserved so Node still resolves those imports; the package is published
+ * under `node_modules/<name>` because a bare specifier cannot resolve from the
+ * per-user cache otherwise.
+ */
+
+export interface SnapshotGuardHookOptions {
+  /** Build output root the hook lives under. Defaults to `UH_HARNESS_DIST` or the module's `dist/`. */
+  sourceDir?: string;
+  /** Cache directory. Defaults to `UH_RUNTIME_SNAPSHOT_CACHE` or the per-user cache base. */
+  cacheRoot?: string;
+}
+
+interface ImportSpecifier {
+  value: string;
+  /** A static `import ... from`/`export ... from`/side-effect import must resolve or the closure is incomplete. */
+  required: boolean;
+}
+
+function snapshotDefaultSourceDir(): string {
+  return process.env.UH_HARNESS_DIST ?? fileURLToPath(new URL("../../dist", import.meta.url));
+}
+
+function snapshotDefaultCacheRoot(): string {
+  const override = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  if (override) return override;
+  // Tests must stay hermetic; the per-user cache is not a temporary directory on
+  // Windows. Everything else mirrors the Windows guardian's cache base.
+  const base = process.env.VITEST ? tmpdir() : process.env.LOCALAPPDATA || tmpdir();
+  return path.join(base, "ultimate-harness", "runtime-snapshots");
+}
+
+function toPosix(value: string): string {
+  return value.split(path.sep).join("/");
+}
+
+async function pathExists(target: string): Promise<boolean> {
+  try { await access(target); return true; } catch { return false; }
+}
+
+function isInside(parent: string, child: string): boolean {
+  const relative = path.relative(parent, child);
+  return relative === "" || (!relative.startsWith("..") && !path.isAbsolute(relative));
+}
+
+function commonAncestor(a: string, b: string): string {
+  const left = path.resolve(a);
+  const right = path.resolve(b);
+  if (isInside(left, right)) return left;
+  if (isInside(right, left)) return right;
+  let current = left;
+  for (;;) {
+    const parent = path.dirname(current);
+    if (parent === current) return current;
+    current = parent;
+    if (isInside(current, right)) return current;
+  }
+}
+
+function layoutRootOf(paths: string[]): string {
+  let common = path.resolve(paths[0]);
+  for (const candidate of paths.slice(1)) {
+    const absolute = path.resolve(candidate);
+    if (isInside(common, absolute)) continue;
+    if (isInside(absolute, common)) { common = absolute; continue; }
+    common = commonAncestor(common, absolute);
+  }
+  return common;
+}
+
+function importSpecifiers(source: string): ImportSpecifier[] {
+  const found = new Map<string, boolean>();
+  const add = (value: string, required: boolean): void => {
+    const previous = found.get(value);
+    if (previous === undefined || (required && !previous)) found.set(value, required);
+  };
+  for (const match of source.matchAll(/\bfrom\s*["']([^"']+)["']/g)) add(match[1], true);
+  for (const match of source.matchAll(/\bimport\s*["']([^"']+)["']/g)) add(match[1], true);
+  for (const match of source.matchAll(/\bimport\s*\(\s*["']([^"']+)["']\s*\)/g)) add(match[1], false);
+  for (const match of source.matchAll(/\brequire\s*\(\s*["']([^"']+)["']\s*\)/g)) add(match[1], false);
+  return [...found].map(([value, required]) => ({ value, required }));
+}
+
+function packageNameOf(specifier: string): string {
+  const segments = specifier.split("/");
+  return specifier.startsWith("@") ? segments.slice(0, 2).join("/") : segments[0];
+}
+
+async function resolveRelativeFile(importer: string, specifier: string): Promise<string | undefined> {
+  const base = path.resolve(path.dirname(importer), specifier);
+  const candidates = path.extname(base)
+    ? [base]
+    : [base, `${base}.js`, `${base}.mjs`, `${base}.cjs`, path.join(base, "index.js")];
+  for (const candidate of candidates) {
+    try { if ((await stat(candidate)).isFile()) return candidate; } catch { /* try the next candidate */ }
+  }
+  return undefined;
+}
+
+async function resolvePackageRoot(importer: string, specifier: string): Promise<string> {
+  const require = createRequire(pathToFileURL(importer));
+  let entry: string;
+  try {
+    entry = require.resolve(specifier, { paths: [path.dirname(importer)] });
+  } catch (error) {
+    throw new Error(`Runtime snapshot cannot resolve imported package ${specifier} from ${importer}: ${error instanceof Error ? error.message : String(error)}`);
+  }
+  const name = packageNameOf(specifier);
+  let directory = path.dirname(entry);
+  for (;;) {
+    try {
+      const manifest = JSON.parse(await readFile(path.join(directory, "package.json"), "utf8")) as { name?: unknown };
+      if (manifest.name === name) return directory;
+    } catch { /* keep walking toward the filesystem root */ }
+    const parent = path.dirname(directory);
+    if (parent === directory) throw new Error(`Runtime snapshot cannot locate the package root for ${name} imported from ${importer}`);
+    directory = parent;
+  }
+}
+
+async function walkFiles(directory: string): Promise<string[]> {
+  const files: string[] = [];
+  const stack = [directory];
+  while (stack.length) {
+    const current = stack.pop()!;
+    for (const item of await readdir(current, { withFileTypes: true })) {
+      const full = path.join(current, item.name);
+      if (item.isDirectory()) stack.push(full);
+      else if (item.isFile()) files.push(full);
+    }
+  }
+  return files.sort();
+}
+
+async function collectClosure(entry: string): Promise<{ buildFiles: string[]; packages: Map<string, string> }> {
+  const buildFiles = new Set<string>([entry]);
+  const packages = new Map<string, string>();
+  const queue = [entry];
+  while (queue.length) {
+    const file = queue.shift()!;
+    const source = await readFile(file, "utf8");
+    for (const specifier of importSpecifiers(source)) {
+      if (specifier.value.startsWith("node:")) continue;
+      if (specifier.value.startsWith(".") || path.isAbsolute(specifier.value)) {
+        const resolved = await resolveRelativeFile(file, specifier.value);
+        if (!resolved) {
+          if (specifier.required) throw new Error(`Runtime snapshot cannot resolve static import ${specifier.value} from ${file}`);
+          continue;
+        }
+        if (!buildFiles.has(resolved)) { buildFiles.add(resolved); queue.push(resolved); }
+      } else {
+        const name = packageNameOf(specifier.value);
+        if (!packages.has(name)) packages.set(name, await resolvePackageRoot(file, specifier.value));
+      }
+    }
+  }
+  return { buildFiles: [...buildFiles], packages };
+}
+
+function hashOf(content: Buffer): string {
+  return createHash("sha256").update(content).digest("hex");
+}
+
+async function verifySnapshot(root: string, contents: Map<string, Buffer>): Promise<void> {
+  const present = new Set((await walkFiles(root)).map(file => toPosix(path.relative(root, file))));
+  for (const relative of contents.keys()) {
+    if (!present.has(relative)) throw new Error(`Runtime snapshot ${root} is incomplete: missing ${relative}`);
+  }
+  for (const relative of present) {
+    if (!contents.has(relative)) throw new Error(`Runtime snapshot ${root} is corrupted: unexpected file ${relative}`);
+  }
+  for (const [relative, content] of contents) {
+    const actual = await readFile(path.join(root, relative));
+    if (hashOf(actual) !== hashOf(content)) {
+      throw new Error(`Runtime snapshot ${root} is corrupted: ${relative} does not match its expected SHA-256`);
+    }
+  }
+}
+
+/**
+ * Publish an immutable copy of a built Tool Guard hook and its closed set of
+ * dependencies, returning the absolute path of the hook inside the snapshot.
+ */
+export async function snapshotGuardHook(hookFileName: string, options: SnapshotGuardHookOptions = {}): Promise<string> {
+  const sourceDir = path.resolve(options.sourceDir ?? snapshotDefaultSourceDir());
+  const cacheRoot = path.resolve(options.cacheRoot ?? snapshotDefaultCacheRoot());
+  const entry = path.resolve(sourceDir, hookFileName);
+  try { if (!(await stat(entry)).isFile()) throw new Error("not a file"); }
+  catch { throw new Error(`Runtime snapshot source hook not found: ${entry}`); }
+
+  const { buildFiles, packages } = await collectClosure(entry);
+  const layoutRoot = layoutRootOf([sourceDir, ...buildFiles]);
+
+  const contents = new Map<string, Buffer>();
+  for (const file of buildFiles) contents.set(toPosix(path.relative(layoutRoot, file)), await readFile(file));
+  for (const [name, root] of packages) {
+    for (const file of await walkFiles(root)) {
+      contents.set(toPosix(path.join("node_modules", name, path.relative(root, file))), await readFile(file));
+    }
+  }
+
+  const ordered = [...contents.keys()].sort();
+  const digest = createHash("sha256");
+  for (const relative of ordered) { digest.update(relative); digest.update("\0"); digest.update(contents.get(relative)!); digest.update("\0"); }
+  const target = path.join(cacheRoot, digest.digest("hex"));
+  const hookPath = path.join(target, toPosix(path.relative(layoutRoot, entry)));
+
+  if (await pathExists(target)) {
+    await verifySnapshot(target, contents);
+    return hookPath;
+  }
+
+  await mkdir(cacheRoot, { recursive: true });
+  const temporary = path.join(cacheRoot, `${path.basename(target)}.${randomUUID()}.tmp`);
+  try {
+    await mkdir(temporary, { recursive: true });
+    for (const relative of ordered) {
+      const destination = path.join(temporary, relative);
+      await mkdir(path.dirname(destination), { recursive: true });
+      await writeFile(destination, contents.get(relative)!);
+    }
+    try {
+      await renameWithRetry(temporary, target);
+    } catch (error) {
+      if (!await pathExists(target)) throw error;
+      await verifySnapshot(target, contents);
+    }
+    return hookPath;
+  } finally {
+    await rm(temporary, { recursive: true, force: true }).catch(() => {});
+  }
+}
diff --git a/src/harness/runtime-supervision.ts b/src/harness/runtime-supervision.ts
new file mode 100644
index 0000000..7d40078
--- /dev/null
+++ b/src/harness/runtime-supervision.ts
@@ -0,0 +1,722 @@
+import path from "node:path";
+import { existsSync, readFileSync } from "node:fs";
+import { DEFAULT_PROTECTED_PATHS, type RuntimeLimits, type RuntimeRoute, type RuntimeStopCode } from "../schema/runtime-control.js";
+import { nativeToolFailure } from "./native-tool-result.js";
+import { settleNativeCap, type NativeBudgetCap } from "./runtime-settlement.js";
+import { SHELL_TOOLS, WRITE_TOOLS } from "./tool-guard.js";
+type Event = Record<string, unknown>;
+const record = (value: unknown): Event | undefined =>
+  value !== null && typeof value === "object" && !Array.isArray(value) ? value as Event : undefined;
+const THINKING_WINDOW_SIZE = 64;
+const THINKING_MIN_SAMPLE_LENGTH = 4_096;
+const THINKING_SAMPLE_LIMIT = 16_384;
+const THINKING_WINDOW_LIMIT = THINKING_SAMPLE_LIMIT - THINKING_WINDOW_SIZE + 1;
+
+function thinkingEventType(event: Event): string | undefined {
+  if (event.type === "thinking_delta" || event.type === "thinking_start" || event.type === "thinking_end") {
+    return event.type;
+  }
+  if (event.type !== "message_update") return undefined;
+  const assistantMessageEvent = record(event.assistantMessageEvent);
+  return typeof assistantMessageEvent?.type === "string" && assistantMessageEvent.type.startsWith("thinking")
+    ? assistantMessageEvent.type
+    : undefined;
+}
+
+function thinkingText(event: Event): string | undefined {
+  const source = event.type === "message_update" ? record(event.assistantMessageEvent) : event;
+  for (const key of ["delta", "text", "content"]) {
+    if (typeof source?.[key] === "string") return source[key] as string;
+  }
+  return undefined;
+}
+
+function thinkingWindowHash(text: string, start: number): number {
+  let hash = 2166136261;
+  for (let index = start; index < start + THINKING_WINDOW_SIZE; index++) {
+    hash = Math.imul(hash ^ text.charCodeAt(index), 16777619);
+  }
+  return hash >>> 0;
+}
+
+function maxThinkingMs(limits: RuntimeLimits): number | undefined {
+  return limits.max_thinking_ms ?? (limits.stall_timeout_ms === undefined ? undefined : limits.stall_timeout_ms * 4);
+}
+
+
+/** Normalize runtime envelopes without interpreting tool payloads as policy decisions. */
+export function nativeRuntimeEvent(value: unknown): Event | undefined {
+  const outer = record(value);
+  return outer ? record(outer.event) ?? outer : undefined;
+}
+
+export function runtimeTerminalFailure(event: Event): string | undefined {
+  const records = [event, record(event.result), record(event.message),
+    ...(Array.isArray(event.messages) ? event.messages.map(record).filter(item => item?.role !== "toolResult") : [])];
+  for (const item of records) {
+    if (!item) continue;
+    const reason = item.stopReason ?? item.stop_reason;
+    const status = item.status;
+    if (item.is_error === true || item.isError === true || item.error ||
+        (typeof item.subtype === "string" && item.subtype.startsWith("error")) ||
+        ["error", "aborted", "max_turns", "max_time", "timeout"].includes(String(reason)) ||
+        ["failed", "error", "cancelled"].includes(String(status))) {
+      return `Runtime reported failure (${String(reason ?? status ?? item.subtype ?? "error")})`;
+    }
+  }
+  return undefined;
+}
+
+/** The native stopReason of a terminal event, scanning the same records as `runtimeTerminalFailure`. */
+export function nativeTerminalStopReason(event: Event): string | undefined {
+  const records = [event, record(event.result), record(event.message),
+    ...(Array.isArray(event.messages) ? event.messages.map(record).filter(item => item?.role !== "toolResult") : [])];
+  for (const item of records) {
+    if (!item) continue;
+    const reason = item.stopReason ?? item.stop_reason;
+    if (typeof reason === "string" && reason) return reason;
+  }
+  return undefined;
+}
+
+/**
+ * The native budget cap a terminal event reports, scanned from the same
+ * records as `runtimeTerminalFailure`. Runtimes name the cap either in
+ * `stopReason`/`stop_reason` (`max_turns`, `max_time`, `timeout`) or in a
+ * `subtype` such as `error_max_turns`; both spell the same cap.
+ */
+export function nativeTerminalBudgetCap(value: unknown): NativeBudgetCap | undefined {
+  const event = nativeRuntimeEvent(value);
+  if (!event) return undefined;
+  const records = [event, record(event.result), record(event.message),
+    ...(Array.isArray(event.messages) ? event.messages.map(record).filter(item => item?.role !== "toolResult") : [])];
+  for (const item of records) {
+    if (!item) continue;
+    const named = item.stopReason ?? item.stop_reason ?? item.subtype;
+    if (typeof named !== "string") continue;
+    const reason = item.stopReason ?? item.stop_reason ?? String(named).replace(/^error_/, "");
+    if (reason === "max_turns") return "turn";
+    if (reason === "max_time" || reason === "timeout") return "time";
+  }
+  return undefined;
+}
+
+/** Read native route metadata, never model-looking text inside tool payloads. */
+export function nativeRuntimeRoute(value: unknown): RuntimeRoute | undefined {
+  const event = nativeRuntimeEvent(value);
+  if (!event) return undefined;
+  const message = record(event.message) ?? event;
+  const type = String(event.type);
+  const claudeInit = type === "system" && event.subtype === "init";
+  const claudeAssistant = type === "assistant" && message.role === "assistant";
+  const requestRoute = type === "model_request_start" || type === "model_request_end";
+  const messageRoute = ["message", "message_start", "message_end"].includes(type) &&
+    message.role === "assistant";
+  const codexRoute = ["thread.started", "turn.started", "turn.completed"].includes(type);
+  if (!claudeInit && !claudeAssistant && !requestRoute && !messageRoute && !codexRoute) return undefined;
+  const provider = message.provider ?? event.provider;
+  const model = message.model ?? event.model;
+  const providerId = typeof provider === "string" && provider ? provider : undefined;
+  const modelId = typeof model === "string" && model ? model : undefined;
+  return providerId || modelId ? { provider: providerId, model: modelId } : undefined;
+}
+
+/**
+ * Routes of agents a runtime delegated to, read only from the structured
+ * `details.progress[]` / `details.jobs[]` metadata of native tool events.
+ * Tool arguments and tool text content are never read.
+ */
+export function nativeDelegatedRoutes(value: unknown): RuntimeRoute[] {
+  const event = nativeRuntimeEvent(value);
+  if (!event || !["tool_execution_update", "tool_execution_end"].includes(String(event.type))) return [];
+  const details = record(record(event.partialResult)?.details) ?? record(record(event.result)?.details);
+  if (!details) return [];
+  const routes: RuntimeRoute[] = [];
+  for (const entry of [details.progress, details.jobs].flatMap(list => Array.isArray(list) ? list : [])) {
+    const job = record(entry);
+    const resolved = typeof job?.resolvedModel === "string" ? job.resolvedModel.replace(/:[^:/]*$/, "") : undefined;
+    const identity = typeof job?.resolvedModelIdentity === "string" && job.resolvedModelIdentity ? job.resolvedModelIdentity : resolved;
+    if (!identity) continue;
+    const slash = identity.indexOf("/");
+    routes.push(slash > 0 ? { provider: identity.slice(0, slash), model: identity.slice(slash + 1) } : { model: identity });
+  }
+  return routes;
+}
+
+/** The first delegated route outside the assignment, rendered as `provider/model`. */
+export function delegatedRouteMismatch(value: unknown, expected: RuntimeRoute | undefined): string | undefined {
+  const route = nativeDelegatedRoutes(value).find(candidate => runtimeRouteMismatch(candidate, expected));
+  return route ? [route.provider, route.model].filter(Boolean).join("/") : undefined;
+}
+
+/**
+ * Whether two provider or model identifiers name the same route. Comparison
+ * trims and lowercases (locale-independent), and reconciles an optional
+ * `provider/model` prefix: when exactly one side is prefixed, only the part
+ * after its last "/" is compared. Nothing else is normalized; there is no
+ * alias table and no partial or substring matching.
+ */
+export function sameRouteIdentifier(a: string, b: string): boolean {
+  const left = a.trim().toLowerCase();
+  const right = b.trim().toLowerCase();
+  if (left === right) return true;
+  const leftSlash = left.lastIndexOf("/");
+  const rightSlash = right.lastIndexOf("/");
+  if ((leftSlash >= 0) === (rightSlash >= 0)) return false;
+  return leftSlash >= 0 ? left.slice(leftSlash + 1) === right : right.slice(rightSlash + 1) === left;
+}
+
+export function runtimeRouteMismatch(observed: RuntimeRoute | undefined, expected: RuntimeRoute | undefined): boolean {
+  if (!expected) return false;
+  return !!observed && ((observed.provider !== undefined && expected.provider !== undefined && !sameRouteIdentifier(observed.provider, expected.provider)) ||
+    (observed.model !== undefined && expected.model !== undefined && !sameRouteIdentifier(observed.model, expected.model)));
+}
+export interface NativeCompletionFacts {
+  nativeTerminal: boolean;
+  nativeTerminalFailure?: string;
+  supervisionStopCode?: RuntimeStopCode;
+  finalMessage: string;
+  cancelled?: boolean;
+  timedOut?: boolean;
+  spawnError?: string;
+  errors?: readonly string[];
+}
+
+/** A completed native terminal event outranks a launcher exit code only when all facts are clean. */
+export function nativeRuntimeCompleted(facts: NativeCompletionFacts): boolean {
+  return facts.nativeTerminal &&
+    facts.nativeTerminalFailure === undefined &&
+    facts.supervisionStopCode === undefined &&
+    !facts.cancelled && !facts.timedOut && facts.spawnError === undefined &&
+    facts.finalMessage.length > 0 &&
+    (facts.errors?.length ?? 0) === 0;
+}
+
+const MUTATION_VERBS: Record<string, true> = {
+  rm: true, del: true, rmdir: true, mv: true, move: true, cp: true, copy: true, tee: true, sed: true,
+  "set-content": true, "out-file": true, "add-content": true, "remove-item": true, "move-item": true,
+  "copy-item": true, "new-item": true,
+};
+
+const WINDOWS_PATHS = process.platform === "win32";
+const PATH = WINDOWS_PATHS ? path.win32 : path.posix;
+
+function normalizedPath(value: string): string {
+  const normalized = PATH.normalize(value.trim().replace(/^['"]|['"]$/g, "")).replaceAll("\\", "/").replace(/^\.\/+/, "");
+  return WINDOWS_PATHS ? normalized.toLowerCase() : normalized;
+}
+
+function relativeCandidate(value: string, workingDirectory?: string): string | undefined {
+  if (!PATH.isAbsolute(value)) return value;
+  if (!workingDirectory) return undefined;
+  const relative = PATH.relative(PATH.resolve(workingDirectory), PATH.resolve(value));
+  if (relative === "" || (!relative.startsWith("..") && !PATH.isAbsolute(relative))) return relative;
+  return undefined;
+}
+
+function pathUnderProtectedRoot(value: string, roots: readonly string[], workingDirectory?: string): boolean {
+  const candidate = relativeCandidate(value, workingDirectory);
+  if (candidate === undefined) return false;
+  const normalizedCandidate = normalizedPath(candidate);
+  if (!normalizedCandidate) return false;
+  return roots.some(root => {
+    const normalizedRoot = normalizedPath(root);
+    return normalizedRoot && (normalizedCandidate === normalizedRoot || normalizedCandidate.startsWith(`${normalizedRoot}/`));
+  });
+}
+
+function shellTokens(command: string): string[] {
+  return command.match(/"[^"]*"|'[^']*'|&&|\|\||[;|]|[^\s]+/g)?.map(token =>
+    token.replace(/^(['"])|(['"])$/g, ""),
+  ) ?? [];
+}
+
+function shellMutationTargets(command: string): string[] {
+  const tokens = shellTokens(command);
+  const targets: string[] = [];
+  for (let index = 0; index < tokens.length; index++) {
+    const token = tokens[index];
+    if (token === ">" || token === ">>") {
+      if (tokens[index + 1]) targets.push(tokens[index + 1]);
+      index++;
+      continue;
+    }
+    if (token.startsWith(">")) {
+      targets.push(token.slice(token.startsWith(">>") ? 2 : 1));
+      continue;
+    }
+    const verb = token.toLowerCase();
+    if (!MUTATION_VERBS[verb]) continue;
+    const args: string[] = [];
+    for (let next = index + 1; next < tokens.length && ![";", "|", "&&", "||"].includes(tokens[next]); next++) {
+      const argument = tokens[next];
+      if (argument.startsWith("-")) {
+        if (tokens[next + 1] && !tokens[next + 1].startsWith("-")) args.push(tokens[++next]);
+        continue;
+      }
+      args.push(argument);
+    }
+    if (verb === "sed") targets.push(args.at(-1) ?? "");
+    else if (["cp", "copy", "mv", "move", "tee", "copy-item", "move-item"].includes(verb)) targets.push(args.at(-1) ?? "");
+    else targets.push(...args);
+  }
+  return targets.filter(Boolean);
+}
+
+function toolArgs(event: Event): Event | undefined {
+  const args = record(event.input) ?? record(event.args);
+  if (args) return args;
+  return typeof event.command === "string" ? event : undefined;
+}
+
+function toolName(event: Event): string {
+  return String(event.toolName ?? event.tool_name ?? event.tool ?? "");
+}
+
+function toolTarget(event: Event, args: Event | undefined): string | undefined {
+  const pathValue = args?.path ?? args?.file_path ?? args?.filePath;
+  if (typeof pathValue === "string" && pathValue) return pathValue;
+  if (typeof args?.command === "string") return args.command.slice(0, 120);
+  return typeof event.command === "string" ? event.command.slice(0, 120) : undefined;
+}
+function guardDenialReason(event: Event): string | undefined {
+  const find = (value: unknown, depth: number): string | undefined => {
+    if (depth > 4) return undefined;
+    if (typeof value === "string" && value.trim().startsWith("CONTRACT:")) return value;
+    if (Array.isArray(value)) {
+      for (const item of value) {
+        const found = find(item, depth + 1);
+        if (found) return found;
+      }
+      return undefined;
+    }
+    const item = record(value);
+    if (!item) return undefined;
+    for (const child of Object.values(item)) {
+      const found = find(child, depth + 1);
+      if (found) return found;
+    }
+    return undefined;
+  };
+  return find(event.result, 0) ?? find(event.text, 0) ?? find(event.content, 0);
+}
+
+
+function guardTamperRecord(value: unknown, depth = 0): boolean {
+  if (depth > 4) return false;
+  if (Array.isArray(value)) return value.some(item => guardTamperRecord(item, depth + 1));
+  const item = record(value);
+  if (!item) return false;
+  if (item.class === "guard_tamper") return true;
+  return Object.values(item).some(child => guardTamperRecord(child, depth + 1));
+}
+
+function guardTamperEvent(event: Event): boolean {
+  if (!["tool_denied", "tool_hook_blocked", "tool_call_blocked"].includes(String(event.type))) return false;
+  return guardTamperRecord(event);
+}
+
+function guardLogEntries(logPath: string): { lines: number; tamper: boolean } {
+  if (!existsSync(logPath)) return { lines: 0, tamper: false };
+  try {
+    const entries = readFileSync(logPath, "utf8").split(/\r?\n/).filter(Boolean);
+    return {
+      lines: entries.length,
+      tamper: entries.some(line => {
+        try { return guardTamperRecord(JSON.parse(line), 0); } catch { return false; }
+      }),
+    };
+  } catch {
+    return { lines: 0, tamper: false };
+  }
+}
+
+
+function claudeNativeEvents(event: Event): Event[] {
+  const derived: Event[] = [];
+  const message = record(event.message);
+  const content = message?.content;
+  if ((event.type === "assistant" || event.type === "user") && Array.isArray(content)) {
+    for (const block of content.map(record).filter((item): item is Event => Boolean(item))) {
+      if (event.type === "assistant" && block.type === "tool_use") {
+        derived.push({ type: "tool_execution_start", toolCallId: block.id, toolName: block.name, input: block.input });
+      } else if (event.type === "user" && block.type === "tool_result") {
+        derived.push({
+          type: "tool_execution_end",
+          toolCallId: block.tool_use_id,
+          result: { content: block.content, is_error: block.is_error },
+          isError: block.is_error === true,
+        });
+      }
+    }
+  }
+  if (event.type === "system" && event.subtype === "permission_denied") {
+    derived.push({
+      type: "tool_denied",
+      toolCallId: event.tool_use_id ?? event.tool_call_id ?? event.id,
+      toolName: event.tool_name ?? event.toolName,
+      result: { reason: event.reason ?? event.message },
+    });
+  }
+  if (event.type === "result" && Array.isArray(event.permission_denials)) {
+    for (const denial of event.permission_denials.map(record).filter((item): item is Event => Boolean(item))) {
+      derived.push({
+        type: "tool_denied",
+        toolCallId: denial.tool_use_id ?? denial.tool_call_id ?? denial.id,
+        toolName: denial.tool_name ?? denial.toolName,
+        result: { reason: denial.reason ?? denial.message },
+      });
+    }
+  }
+  return derived;
+}
+
+/** One attempt's observed progress. Time is injected for deterministic failure probes. */
+export class RuntimeSupervision {
+  readonly inflight = new Set<string>();
+  readonly commands = new Map<string, string>();
+  readonly failures = new Map<string, number>();
+  private readonly failureExitCodes = new Map<string, number>();
+  private readonly toolNames = new Map<string, string>();
+  private readonly toolTargets = new Map<string, string>();
+  private readonly hookBlocks = new Map<string, string>();
+  private readonly hookCalls = new Set<string>();
+  private readonly guardCompletedCalls = new Set<string>();
+  private readonly countedDenials = new Set<string>();
+  private readonly protectedChecks = new Set<string>();
+  guardArmed?: boolean;
+  turns = 0;
+  denials = 0;
+  readyAt?: number;
+  sessionId?: string;
+  terminal = false;
+  failure?: string;
+  terminalFailure?: string;
+  private thinkingStartedAt?: number;
+  private thinkingSampleLength = 0;
+  private thinkingWindowCount = 0;
+  private thinkingWindowCursor = 0;
+  private readonly thinkingWindowHashes: number[] = [];
+  private readonly thinkingWindowCounts = new Map<number, number>();
+  private thinkingMostFrequentWindows = 0;
+  private thinkingNonLive = false;
+
+  private resetThinking(): void {
+    this.thinkingStartedAt = undefined;
+    this.thinkingSampleLength = 0;
+    this.thinkingWindowCount = 0;
+    this.thinkingWindowCursor = 0;
+    this.thinkingWindowHashes.length = 0;
+    this.thinkingWindowCounts.clear();
+    this.thinkingMostFrequentWindows = 0;
+    this.thinkingNonLive = false;
+  }
+
+  private recordThinkingText(text: string): void {
+    this.thinkingSampleLength = Math.min(THINKING_SAMPLE_LIMIT, this.thinkingSampleLength + text.length);
+    const firstWindow = Math.max(0, text.length - THINKING_WINDOW_LIMIT - THINKING_WINDOW_SIZE + 1);
+    for (let start = firstWindow; start + THINKING_WINDOW_SIZE <= text.length; start++) {
+      const hash = thinkingWindowHash(text, start);
+      if (this.thinkingWindowCount === THINKING_WINDOW_LIMIT) {
+        const evicted = this.thinkingWindowHashes[this.thinkingWindowCursor];
+        const evictedCount = this.thinkingWindowCounts.get(evicted) ?? 0;
+        if (evictedCount <= 1) this.thinkingWindowCounts.delete(evicted);
+        else this.thinkingWindowCounts.set(evicted, evictedCount - 1);
+        this.thinkingWindowHashes[this.thinkingWindowCursor] = hash;
+        this.thinkingWindowCursor = (this.thinkingWindowCursor + 1) % THINKING_WINDOW_LIMIT;
+        if (evictedCount === this.thinkingMostFrequentWindows) {
+          this.thinkingMostFrequentWindows = 0;
+          for (const count of this.thinkingWindowCounts.values()) {
+            this.thinkingMostFrequentWindows = Math.max(this.thinkingMostFrequentWindows, count);
+          }
+        }
+      } else {
+        this.thinkingWindowHashes.push(hash);
+        this.thinkingWindowCount++;
+      }
+      const count = (this.thinkingWindowCounts.get(hash) ?? 0) + 1;
+      this.thinkingWindowCounts.set(hash, count);
+      this.thinkingMostFrequentWindows = Math.max(this.thinkingMostFrequentWindows, count);
+    }
+  }
+
+  private observeThinking(event: Event, now: number): boolean {
+    if (thinkingEventType(event) === undefined) return false;
+    this.thinkingStartedAt ??= now;
+    this.readyAt ??= now;
+    const text = thinkingText(event);
+    if (text) this.recordThinkingText(text);
+    if (!this.thinkingNonLive && this.thinkingSampleLength >= THINKING_MIN_SAMPLE_LENGTH &&
+      this.thinkingWindowCount > 0 &&
+      this.thinkingMostFrequentWindows * 100 > this.thinkingWindowCount * 30) {
+      this.thinkingNonLive = true;
+    }
+    if (!this.thinkingNonLive) this.lastProgressAt = now;
+    return true;
+  }
+
+  private markProgress(now: number): void {
+    this.resetThinking();
+    this.lastProgressAt = now;
+  }
+
+  stopCode?: RuntimeStopCode;
+  lastProgressAt: number;
+  private observedRoute: RuntimeRoute = {};
+  /** This attempt is the single deadline grace delivery attempt. */
+  private readonly deadlineGrace: boolean;
+
+  constructor(
+    readonly limits: RuntimeLimits,
+    readonly startedAt: number,
+    readonly expectedRoute?: RuntimeRoute,
+    readonly workingDirectory?: string,
+    readonly permissionMode?: "guard" | "yolo" | "prompt",
+    readonly guardLogPath?: string,
+    readonly onDeadline?: { grace_turns: number; grace_timeout_ms: number; grace?: boolean },
+  ) {
+    this.lastProgressAt = startedAt;
+    this.deadlineGrace = this.onDeadline?.grace === true;
+  }
+
+  private deadlineReason(now: number): string | undefined {
+    if (!this.onDeadline) return undefined;
+    // The grace attempt runs on the grace budget itself, so the whole
+    // remaining budget is the deadline boundary: exhausting it still settles
+    // as `deadline` rather than as a raw `turn_limit`/`timeout`.
+    const graceTurns = this.deadlineGrace ? 0 : this.onDeadline.grace_turns;
+    const graceTimeout = this.deadlineGrace ? 0 : this.onDeadline.grace_timeout_ms;
+    if (this.limits.timeout_ms !== undefined) {
+      const remaining = Math.max(0, this.limits.timeout_ms - (now - this.startedAt));
+      if (now - this.startedAt >= Math.max(0, this.limits.timeout_ms - graceTimeout)) {
+        return this.stop(`Runtime deadline reached; ${remaining}ms remaining for grace`, "deadline");
+      }
+    }
+    if (this.limits.max_turns !== undefined) {
+      const remaining = Math.max(0, this.limits.max_turns - this.turns);
+      if (this.turns >= Math.max(0, this.limits.max_turns - graceTurns)) {
+        return this.stop(`Runtime deadline reached; ${remaining} turns remaining for grace`, "deadline");
+      }
+    }
+    return undefined;
+  }
+
+  settle(): string | undefined {
+    if (!this.failure && ((this.expectedRoute?.provider !== undefined && this.observedRoute.provider === undefined) ||
+        (this.expectedRoute?.model !== undefined && this.observedRoute.model === undefined))) {
+      return this.stop("Runtime did not attest the configured route", "route_unverified");
+    }
+    return this.failure;
+  }
+
+  private countDenial(id: string, reason: string | undefined, now: number): void {
+    if (id && this.countedDenials.has(id)) return;
+    if (id) this.countedDenials.add(id);
+    this.denials++;
+    if (id && reason) this.hookBlocks.set(id, reason);
+    this.markProgress(now);
+    if (this.limits.max_denials && this.denials >= this.limits.max_denials) {
+      const name = id ? this.toolNames.get(id) : undefined;
+      const target = id ? this.toolTargets.get(id) : undefined;
+      const block = id ? this.hookBlocks.get(id) : undefined;
+      const details = [name, target].filter(Boolean).join(" ");
+      const suffix = block ? `${details ? `${details}: ` : ""}${block}` : details;
+      this.stop(`${this.denials} hook-denied calls; last: ${suffix || "unknown action"}`, "denial_budget");
+    }
+  }
+
+  private verifyGuardInvocation(id: string): void {
+    if (this.permissionMode !== "guard" || !id || this.guardCompletedCalls.has(id)) return;
+    this.guardCompletedCalls.add(id);
+    const evidence = this.guardLogPath ? guardLogEntries(this.guardLogPath) : { lines: 0, tamper: false };
+    if (evidence.tamper) {
+      this.stop("Guard tamper attempted", "policy");
+      return;
+    }
+    if (evidence.lines < this.guardCompletedCalls.size) {
+      this.guardArmed = false;
+      const reason = this.hookCalls.has(id) ? "Guard hook ran but could not log" : "Guard hook did not run";
+      this.stop(`${reason}; refusing to continue with permissions enabled`, "policy");
+    } else {
+      this.guardArmed = true;
+    }
+  }
+  private stop(reason: string, code: RuntimeStopCode): string {
+    if (!this.failure || code === "policy" || code === "route_mismatch") {
+      this.failure = reason;
+      this.stopCode = code;
+    }
+    return this.failure;
+  }
+
+  /**
+   * Map a native terminal stop onto a UH stop code before generic failure
+   * classification: budget caps settle as their own stop code (so salvage
+   * sees them), every other native failure settles as `runtime_error` with
+   * the native reason copied into the stop reason, never empty.
+   *
+   * A native cap is never a natural end, so outside deadline grace it is a
+   * failure even when the model emitted a final message. The single deadline
+   * grace attempt runs under a cap of `grace_turns + 1`, so its cap is the
+   * expected end: it settles with stop code `deadline` and no failure. Returns
+   * true when the event is that expected grace end, so the caller does not
+   * record a native terminal failure for it.
+   */
+  private stopFromNativeTerminal(event: Event): boolean {
+    if (this.failure) return false;
+    const cap = nativeTerminalBudgetCap(event);
+    if (cap) {
+      const reason = nativeTerminalStopReason(event) ?? (cap === "turn" ? "max_turns" : "max_time");
+      const nativeTurns = event.num_turns ?? record(event.result)?.num_turns;
+      const turns = typeof nativeTurns === "number" && Number.isInteger(nativeTurns) && nativeTurns > 0
+        ? nativeTurns
+        : this.turns > 0 ? this.turns : undefined;
+      const settlement = settleNativeCap({ cap, reason, grace: this.deadlineGrace, deliverable: false, turns });
+      if (settlement.graceExpectedEnd) {
+        this.stopCode = "deadline";
+        return true;
+      }
+      this.stop(settlement.reason, settlement.stopCode);
+      return false;
+    }
+    const failure = runtimeTerminalFailure(event);
+    if (failure) this.stop(failure, "runtime_error");
+    return false;
+  }
+
+  get stopReason(): RuntimeStopCode | undefined {
+    return this.stopCode;
+  }
+
+  observe(value: unknown, now: number): string | undefined {
+    const event = nativeRuntimeEvent(value);
+    if (!event) return undefined;
+    if (guardTamperEvent(event)) return this.stop("Guard tamper attempted", "policy");
+    const type = event.type;
+    const route = nativeRuntimeRoute(event);
+    if (runtimeRouteMismatch(route, this.expectedRoute)) return this.stop("Runtime reported a route outside the configured assignment", "route_mismatch");
+    const delegated = delegatedRouteMismatch(event, this.expectedRoute);
+    if (delegated) return this.stop(`Delegated agent ran on a route outside the configured assignment: ${delegated}`, "route_mismatch");
+    if (route?.provider) this.observedRoute.provider = route.provider;
+    if (route?.model) this.observedRoute.model = route.model;
+    const session = event.sessionId ?? event.session_id ?? (type === "session" ? event.id : undefined);
+    if (typeof session === "string" && session) this.sessionId = session;
+    const id = String(event.toolCallId ?? event.tool_call_id ?? event.id ?? "");
+    for (const derived of claudeNativeEvents(event)) {
+      const derivedFailure = this.observe(derived, now);
+      if (derivedFailure) return derivedFailure;
+    }
+    const nativeTurns = event.num_turns ?? record(event.result)?.num_turns;
+    if (typeof nativeTurns === "number" && Number.isInteger(nativeTurns) && nativeTurns >= 0) {
+      this.turns = Math.max(this.turns, nativeTurns);
+      if (this.limits.max_turns && this.turns > this.limits.max_turns) this.stop("Turn limit exceeded", "turn_limit");
+    }
+    if (this.failure) {
+      if (type === "run_end" || type === "result" || type === "agent_end") {
+        this.terminal = true;
+        this.terminalFailure ??= runtimeTerminalFailure(event);
+        this.markProgress(now);
+      }
+      return this.failure;
+    }
+    if (this.observeThinking(event, now)) return this.failure;
+    if (type === "tool_queued" || type === "tool_execution_start" || type === "tool_running") {
+      if (id) this.inflight.add(id);
+      const args = toolArgs(event);
+      const name = toolName(event);
+      const target = toolTarget(event, args);
+      if (id && name) this.toolNames.set(id, name);
+      if (id && target) this.toolTargets.set(id, target);
+      if (id && args && typeof args.command === "string") this.commands.set(id, args.command);
+      const firstProtectedCheck = !id || !this.protectedChecks.has(id);
+      if (firstProtectedCheck) {
+        if (id) this.protectedChecks.add(id);
+        if (name && WRITE_TOOLS.has(name.toLowerCase())) {
+          const pathValue = args?.path ?? args?.file_path ?? args?.filePath;
+          if (typeof pathValue === "string" && pathUnderProtectedRoot(pathValue, this.limits.protected_paths ?? DEFAULT_PROTECTED_PATHS, this.workingDirectory)) {
+            this.stop(`Protected path write attempted: ${pathValue}`, "policy");
+          }
+        } else if (name && SHELL_TOOLS.has(name.toLowerCase()) && typeof args?.command === "string") {
+          const protectedPath = shellMutationTargets(args.command).find(target =>
+            pathUnderProtectedRoot(target, this.limits.protected_paths ?? DEFAULT_PROTECTED_PATHS, this.workingDirectory));
+          if (protectedPath) this.stop(`Protected path write attempted: ${protectedPath}`, "policy");
+        }
+      }
+      this.readyAt ??= now;
+      this.markProgress(now);
+    } else if (type === "tool_hooks") {
+      const outcome = record(event.outcome);
+      if (event.phase === "pre" && id) this.hookCalls.add(id);
+      if (event.phase === "pre" && outcome?.kind === "block" && typeof outcome.text === "string" && id) {
+        this.hookBlocks.set(id, outcome.text);
+      }
+    } else if (type === "tool_completed" || type === "tool_execution_end") {
+      this.inflight.delete(id);
+      const command = this.commands.get(id);
+      this.commands.delete(id);
+      const outcome = nativeToolFailure(event);
+      this.verifyGuardInvocation(id);
+      const denial = guardDenialReason(event);
+      if (denial) this.countDenial(id, denial, now);
+      if (command && outcome.failed && !denial) {
+        const count = (this.failures.get(command) ?? 0) + 1;
+        this.failures.set(command, count);
+        if (outcome.exit_code !== undefined) this.failureExitCodes.set(command, outcome.exit_code);
+        if (this.limits.max_repeated_failures && count >= this.limits.max_repeated_failures) {
+          const exit = this.failureExitCodes.get(command);
+          this.stop(`The same command failed ${count} times${exit === undefined ? "" : ` (exit ${exit})`}: ${command.slice(0, 120)}`, "repeated_failure");
+        }
+      }
+      this.markProgress(now);
+    } else if (type === "tool_hook_blocked" || type === "tool_call_blocked" || type === "tool_denied") {
+      this.inflight.delete(id);
+      this.commands.delete(id);
+      this.verifyGuardInvocation(id);
+      this.countDenial(id, id ? this.hookBlocks.get(id) : undefined, now);
+    } else if (type === "turn_start") {
+      this.markProgress(now);
+      const deadline = this.deadlineReason(now);
+      if (deadline) return deadline;
+      if (this.limits.max_turns && this.turns >= this.limits.max_turns) this.stop("Turn limit reached", "turn_limit");
+    } else if (type === "turn_end") {
+      this.turns++;
+      this.markProgress(now);
+      if (this.limits.max_turns && this.turns > this.limits.max_turns) this.stop("Turn limit exceeded", "turn_limit");
+    } else if (type === "assistant" || (type === "system" && event.subtype === "init")) {
+      this.readyAt ??= now;
+      this.markProgress(now);
+    } else if (type === "model_request_start" || type === "model_request_end" ||
+      ((type === "message_start" || type === "message_end") && record(event.message)?.role === "assistant")) {
+      this.readyAt ??= now;
+      this.markProgress(now);
+    } else if (type === "message_end") {
+      this.markProgress(now);
+    }
+    if (type === "run_end" || type === "result" || type === "agent_end") {
+      this.terminal = true;
+      if (!this.stopFromNativeTerminal(event)) this.terminalFailure ??= runtimeTerminalFailure(event);
+      this.markProgress(now);
+    }
+    // Text deltas are not progress: malformed repetitive output must not defeat a stall budget.
+    return this.failure;
+  }
+
+  check(now: number): string | undefined {
+    if (this.failure) return this.failure;
+    const deadline = this.deadlineReason(now);
+    if (deadline) return deadline;
+    if (this.limits.timeout_ms && now - this.startedAt >= this.limits.timeout_ms) return this.stop("Runtime wall-time limit reached", "timeout");
+    if (!this.terminal && this.readyAt === undefined && this.limits.startup_timeout_ms && now - this.startedAt >= this.limits.startup_timeout_ms) return this.stop("Runtime readiness deadline exceeded", "startup");
+    if (!this.terminal && (this.readyAt !== undefined || !this.limits.startup_timeout_ms) && this.inflight.size === 0) {
+      const thinkingLimit = maxThinkingMs(this.limits);
+      if (this.thinkingStartedAt !== undefined && thinkingLimit !== undefined &&
+        now - this.thinkingStartedAt >= thinkingLimit) {
+        return this.stop("Reasoning exceeded max_thinking_ms without a tool call or message", "stall");
+      }
+      if (this.limits.stall_timeout_ms && now - this.lastProgressAt >= this.limits.stall_timeout_ms) {
+        return this.stop("Runtime stalled without an in-flight tool", "stall");
+      }
+    }
+    return undefined;
+  }
+}
diff --git a/src/harness/sandbox-backends.ts b/src/harness/sandbox-backends.ts
index c20ffe8..59cd7f8 100644
--- a/src/harness/sandbox-backends.ts
+++ b/src/harness/sandbox-backends.ts
@@ -1,8 +1,9 @@
-import { execFile, spawn } from "node:child_process";
+import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { mkdir, writeFile } from "node:fs/promises";
+import { mkdir, rm, writeFile } from "node:fs/promises";
 import path from "node:path";
 import { fileExists } from "./mission.js";
+import { runRuntimeProcess } from "./runtime-process.js";
 
 const execFileP = promisify(execFile);
 const OPENSANDBOX_METADATA = ".uh-opensandbox.json";
@@ -55,6 +56,9 @@ export interface SandboxBackend {
   collectDirtyChanges(worktreePath: string): Promise<string[]>;
 }
 
+/** Injectable git seam: every backend runs git through this signature. */
+export type GitRunner = (cwd: string, args: string[]) => Promise<{ stdout: string; stderr: string }>;
+
 async function runGit(cwd: string, args: string[]): Promise<{ stdout: string; stderr: string }> {
   try {
     const res = await execFileP("git", ["-C", cwd, ...args]);
@@ -76,6 +80,20 @@ async function gitStatusPorcelain(worktreePath: string): Promise<string[]> {
   return stdout.split("\n").filter((line) => line.length > 0);
 }
 
+/**
+ * `git worktree unlock <path>`, tolerating the "is not locked" no-op. A
+ * worktree created before locking existed (or already unlocked) reports that
+ * message, which must not abort teardown.
+ */
+async function unlockWorktree(root: string, worktreePath: string): Promise<void> {
+  try {
+    await runGit(root, ["worktree", "unlock", worktreePath]);
+  } catch (err) {
+    const message = err instanceof Error ? err.message : String(err);
+    if (!/is not locked/i.test(message)) throw err;
+  }
+}
+
 /**
  * Default backend: a `git worktree` sharing the project's object store on a
  * dedicated `sandbox/<id>` branch. Cheap, but ties the sandbox to the parent
@@ -86,19 +104,32 @@ export class GitWorktreeBackend implements SandboxBackend {
 
   async materialize(ctx: SandboxMaterializeContext): Promise<SandboxMaterializeResult> {
     const branch = `sandbox/${ctx.sandboxId}`;
-    await runGit(ctx.root, ["worktree", "add", "-b", branch, ctx.worktreePath, ctx.baseRef]);
+    // Lock the registration so a `git worktree prune` run elsewhere (another
+    // controller, or a removable/network volume that is briefly unmounted)
+    // cannot delete this worktree's administrative entry behind our back.
+    // No run id is in scope here, so the branch name is the lock identifier.
+    await runGit(ctx.root, [
+      "worktree", "add", "--lock", "--reason", `uh:${branch}`, "-b", branch, ctx.worktreePath, ctx.baseRef,
+    ]);
     return { branch, base_ref: ctx.baseRef };
   }
 
   async teardown(ctx: SandboxTeardownContext, opts: SandboxTeardownOptions): Promise<{ branch_removed: boolean }> {
     if (await fileExists(ctx.worktreePath)) {
+      await unlockWorktree(ctx.root, ctx.worktreePath);
       const removeArgs = ["worktree", "remove"];
       if (opts.force) removeArgs.push("--force");
       removeArgs.push(ctx.worktreePath);
       await runGit(ctx.root, removeArgs);
     } else {
-      // Worktree directory was deleted out-of-band; prune the registration.
-      await runGit(ctx.root, ["worktree", "prune"]);
+      // The directory vanished out-of-band (deleted, or a removable/network
+      // volume is unmounted). Drop only THIS registration: unlock, then a
+      // forced remove. We never run a global `git worktree prune` — that would
+      // also delete every other worktree whose directory is missing right now,
+      // including ones owned by other controllers. If git still refuses, leave
+      // the orphan in place; `git worktree list` surfaces it to the operator.
+      try { await runGit(ctx.root, ["worktree", "unlock", ctx.worktreePath]); } catch { /* tolerated */ }
+      try { await runGit(ctx.root, ["worktree", "remove", "--force", ctx.worktreePath]); } catch { /* tolerated */ }
     }
 
     let branchRemoved = false;
@@ -128,18 +159,42 @@ export class GitWorktreeBackend implements SandboxBackend {
  */
 export class DirectoryBackend implements SandboxBackend {
   readonly name = "directory";
+  private readonly git: GitRunner;
+
+  constructor(git: GitRunner = runGit) {
+    this.git = git;
+  }
 
   async materialize(ctx: SandboxMaterializeContext): Promise<SandboxMaterializeResult> {
-    // Local clone (hard-linked objects) of the project into the sandbox dir.
-    await runGit(ctx.root, ["clone", "--local", "--quiet", "--", ctx.root, ctx.worktreePath]);
+    await this.clone(ctx);
     if (ctx.baseRef && ctx.baseRef !== "HEAD") {
-      await runGit(ctx.worktreePath, ["checkout", "--quiet", ctx.baseRef]);
+      await this.git(ctx.worktreePath, ["checkout", "--quiet", ctx.baseRef]);
     }
     const branch = `sandbox/${ctx.sandboxId}`;
-    await runGit(ctx.worktreePath, ["checkout", "--quiet", "-b", branch]);
+    await this.git(ctx.worktreePath, ["checkout", "--quiet", "-b", branch]);
     return { branch, base_ref: ctx.baseRef };
   }
 
+  /**
+   * `git clone --local` hard-links the object store to keep the clone cheap.
+   * That only works when the sandbox shares a filesystem with the repository:
+   * for a linked worktree whose common git directory lives on another drive, or
+   * a network share, git fails with "failed to create link ... Improper link".
+   * On that failure only, remove the partial target directory and retry once
+   * without hardlinks. Any other clone failure is reported as-is.
+   */
+  private async clone(ctx: SandboxMaterializeContext): Promise<void> {
+    const target = ["--quiet", "--", ctx.root, ctx.worktreePath];
+    try {
+      await this.git(ctx.root, ["clone", "--local", ...target]);
+    } catch (err) {
+      const message = err instanceof Error ? err.message : String(err);
+      if (!/failed to create link/i.test(message)) throw err;
+      await rm(ctx.worktreePath, { recursive: true, force: true });
+      await this.git(ctx.root, ["clone", "--no-hardlinks", ...target]);
+    }
+  }
+
   async teardown(_ctx: SandboxTeardownContext, _opts: SandboxTeardownOptions): Promise<{ branch_removed: boolean }> {
     // The clone is self-contained: the branch lives inside the clone, which the
     // orchestrator removes wholesale. Nothing to unregister in the parent repo.
@@ -299,40 +354,48 @@ async function runOpenSandboxTemplate(
   return runShell(rendered, values.spawnCwd ?? values.cwd, values.timeoutMs);
 }
 
-function runShell(command: string, cwd: string, commandTimeoutMs: number): Promise<SandboxCommandRunResult> {
-  return new Promise((resolve) => {
-    const startedAt = Date.now();
-    const child = spawn(command, { cwd, detached: true, shell: true, stdio: ["ignore", "pipe", "pipe"] });
-    let stdout = "";
-    let stderr = "";
-    let settled = false;
-    let timedOut = false;
-    let timeoutTimer: NodeJS.Timeout | undefined;
-    let killTimer: NodeJS.Timeout | undefined;
-    const append = (current: string, chunk: unknown) => (current + (typeof chunk === "string" ? chunk : Buffer.isBuffer(chunk) ? chunk.toString("utf-8") : String(chunk))).slice(0, COMMAND_OUTPUT_LIMIT);
-    const finish = (metrics: Omit<SandboxCommandRunResult, "durationMs">) => {
-      if (settled) return;
-      settled = true;
-      if (timeoutTimer) clearTimeout(timeoutTimer);
-      if (killTimer) clearTimeout(killTimer);
-      resolve({ ...metrics, durationMs: Date.now() - startedAt });
-    };
-    const killChild = (signal: NodeJS.Signals) => {
-      if (child.pid === undefined) return;
-      try { process.kill(-child.pid, signal); } catch { try { child.kill(signal); } catch { /* best effort */ } }
+async function runShell(command: string, cwd: string, commandTimeoutMs: number): Promise<SandboxCommandRunResult> {
+  const startedAt = Date.now();
+  try {
+    const shell = await resolveTemplateShell(commandTimeoutMs);
+    const remainingMs = commandTimeoutMs - (Date.now() - startedAt);
+    if (remainingMs <= 0) return { exitCode: 124, stdout: "", stderr: "Command preparation exceeded its deadline",
+      timedOut: true, durationMs: Date.now() - startedAt };
+    const result = await runRuntimeProcess({ command: shell, args: ["-c", command], cwd, timeoutMs: remainingMs });
+    return {
+      exitCode: result.timedOut ? 124 : result.exitCode,
+      stdout: result.stdout.slice(0, COMMAND_OUTPUT_LIMIT),
+      stderr: (result.stderr || result.spawnError || "").slice(0, COMMAND_OUTPUT_LIMIT),
+      timedOut: result.timedOut,
+      spawnError: result.spawnError ? new Error(result.spawnError) : undefined,
+      durationMs: Date.now() - startedAt,
     };
-    child.stdout?.setEncoding("utf-8");
-    child.stderr?.setEncoding("utf-8");
-    child.stdout?.on("data", (chunk) => { stdout = append(stdout, chunk); });
-    child.stderr?.on("data", (chunk) => { stderr = append(stderr, chunk); });
-    child.on("error", (err) => finish({ exitCode: 1, stdout, stderr: stderr || err.message, timedOut: false, spawnError: err }));
-    child.on("close", (code) => finish({ exitCode: code ?? 1, stdout, stderr, timedOut }));
-    timeoutTimer = setTimeout(() => {
-      timedOut = true;
-      killChild("SIGTERM");
-      killTimer = setTimeout(() => { killChild("SIGKILL"); finish({ exitCode: 124, stdout, stderr, timedOut: true }); }, 100);
-    }, commandTimeoutMs);
-  });
+  } catch (error) {
+    const failure = error instanceof Error ? error : new Error(String(error));
+    return { exitCode: 1, stdout: "", stderr: failure.message, timedOut: false,
+      spawnError: failure, durationMs: Date.now() - startedAt };
+  }
+}
+
+let discoveredWindowsShell: { searchPath: string; executable: string } | undefined;
+
+async function resolveTemplateShell(timeoutMs: number): Promise<string> {
+  if (process.env.UH_OPENSANDBOX_SHELL) return process.env.UH_OPENSANDBOX_SHELL;
+  if (process.platform !== "win32") return "/bin/sh";
+  const searchPath = process.env.PATH ?? "";
+  if (discoveredWindowsShell?.searchPath === searchPath) return discoveredWindowsShell.executable;
+  // Derive a native shell from the installed Git distribution, never a WSL launcher.
+  const { stdout } = await execFileP("where.exe", ["git.exe"], { timeout: Math.max(1, Math.min(timeoutMs, 10_000)) });
+  for (const git of stdout.trim().split(/\r?\n/)) {
+    for (const relative of ["../bin/bash.exe", "../usr/bin/bash.exe", "../../usr/bin/bash.exe"]) {
+      const executable = path.resolve(path.dirname(git), relative);
+      if (await fileExists(executable)) {
+        discoveredWindowsShell = { searchPath, executable };
+        return executable;
+      }
+    }
+  }
+  throw new Error("POSIX command templates require a native shell; set UH_OPENSANDBOX_SHELL to its executable path");
 }
 
 function shellQuote(value: string): string {
diff --git a/src/harness/sandbox.ts b/src/harness/sandbox.ts
index 7b606c0..7df8c37 100644
--- a/src/harness/sandbox.ts
+++ b/src/harness/sandbox.ts
@@ -1,5 +1,6 @@
 import { cp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
 import path from "node:path";
+import { relativeArtifactPath } from "./artifact-paths.js";
 import { parse, stringify } from "yaml";
 import {
   SandboxesIndexSchema,
@@ -68,7 +69,6 @@ export async function createSandbox(
 ): Promise<SandboxRecord> {
   assertSafeSandboxId(opts.id);
   assertSafeMissionId(opts.missionId);
-  await requireSandboxesIndex(root);
 
   const sandboxesRoot = path.resolve(sandboxesDir(root));
   await rejectSymlinkIfExists(sandboxesRoot, "Sandboxes directory");
@@ -130,7 +130,7 @@ export async function createSandbox(
     mission_id: opts.missionId,
     backend: backend.name,
     branch: materialized.branch,
-    path: toForwardSlash(path.relative(root, worktreePath)),
+    path: relativeArtifactPath(root, worktreePath),
     base_ref: materialized.base_ref,
     status: "created",
     created_at: now,
@@ -145,7 +145,6 @@ export async function createSandbox(
 }
 
 export async function listSandboxes(root: string): Promise<SandboxIndexEntry[]> {
-  await requireSandboxesIndex(root);
   const index = await readIndex(root);
   return [...index.sandboxes];
 }
@@ -155,7 +154,6 @@ export async function getSandboxStatus(
   id: string,
 ): Promise<SandboxStatusInfo> {
   assertSafeSandboxId(id);
-  await requireSandboxesIndex(root);
   const index = await readIndex(root);
   const entry = index.sandboxes.find((s) => s.id === id);
   if (!entry) {
@@ -183,7 +181,6 @@ export async function discardSandbox(
   opts: DiscardSandboxOptions = {},
 ): Promise<DiscardSandboxResult> {
   assertSafeSandboxId(id);
-  await requireSandboxesIndex(root);
   const index = await readIndex(root);
   const entryIndex = index.sandboxes.findIndex((s) => s.id === id);
   if (entryIndex === -1) {
@@ -231,18 +228,19 @@ export async function discardSandbox(
   };
 }
 
-async function requireSandboxesIndex(root: string): Promise<void> {
+/**
+ * Read the sandboxes index. A missing file is an empty registry: the index is
+ * runtime state that every run rewrites, so a project may stop tracking it and a
+ * fresh clone must still work — `create` writes a new valid index on demand. A
+ * present-but-invalid index is never treated as empty: it fails loudly and is
+ * never overwritten, so a corrupt registry cannot be silently discarded.
+ */
+async function readIndex(root: string): Promise<SandboxesIndexDocument> {
   const indexPath = sandboxesIndex(root);
   await rejectSymlinkIfExists(indexPath, "Sandboxes index");
   if (!(await fileExists(indexPath))) {
-    throw new Error(
-      `Sandboxes index missing: ${indexPath}. Run 'uh init' first.`,
-    );
+    return { schema_version: "uh.sandboxes-index.v0", sandboxes: [] };
   }
-}
-
-async function readIndex(root: string): Promise<SandboxesIndexDocument> {
-  const indexPath = sandboxesIndex(root);
   const raw = await readFile(indexPath, "utf-8");
   let parsed: unknown;
   try {
@@ -266,6 +264,7 @@ async function writeIndex(
   doc: SandboxesIndexDocument,
 ): Promise<void> {
   const indexPath = sandboxesIndex(root);
+  await mkdir(path.dirname(indexPath), { recursive: true });
   await writeFile(indexPath, stringify(doc), "utf-8");
 }
 
@@ -313,8 +312,78 @@ function toIndexEntry(record: SandboxRecord): SandboxIndexEntry {
   };
 }
 
-function toForwardSlash(p: string): string {
-  return p.split(path.sep).join("/");
+export type SandboxMissionRoute = {
+  effectiveRoot: string;
+  missionPath: string;
+  sandbox?: { id: string; path: string; backend: string };
+  /**
+   * Mission id read from the mission file while routing. Present whenever
+   * routing was attempted (`--no-sandbox` skips the read), so callers can
+   * name the mission in a refusal without parsing the file a second time.
+   */
+  missionId?: string;
+  error?: string;
+};
+
+
+export async function findBoundSandbox(
+  projectRoot: string,
+  missionId: string,
+): Promise<{ id: string; path: string; backend: string } | null> {
+  const indexPath = sandboxesIndex(projectRoot);
+  if (!(await fileExists(indexPath))) return null;
+  const index = await readIndex(projectRoot);
+  const sandboxesRoot = path.resolve(sandboxesDir(projectRoot));
+  const candidates = index.sandboxes
+    .filter((entry) => entry.mission_id === missionId && entry.status !== "discarded" && typeof entry.path === "string" && entry.path.length > 0)
+    .sort((a, b) => (b.updated_at ?? "").localeCompare(a.updated_at ?? ""));
+  for (const candidate of candidates) {
+    const resolved = path.resolve(projectRoot, candidate.path ?? "");
+    if (!isPathWithin(resolved, sandboxesRoot)) continue;
+    if (!(await fileExists(resolved))) continue;
+    return { id: candidate.id, path: resolved, backend: candidate.backend };
+  }
+  return null;
+}
+
+export async function resolveSandboxMissionRoot(
+  root: string,
+  missionPath: string,
+  useSandbox: boolean,
+): Promise<SandboxMissionRoute> {
+  if (!useSandbox) return { effectiveRoot: root, missionPath };
+  let missionId: string;
+  try {
+    const parsed = parse(await readFile(missionPath, "utf-8"));
+    if (!parsed || typeof parsed !== "object" || typeof parsed.id !== "string" || parsed.id.length === 0) {
+      return { effectiveRoot: root, missionPath, error: "Cannot route mission without a valid mission id; refusing host-root execution." };
+    }
+    missionId = parsed.id;
+  } catch {
+    return { effectiveRoot: root, missionPath, error: "Cannot read mission for sandbox routing; refusing host-root execution." };
+  }
+  const sandbox = await findBoundSandbox(root, missionId);
+  if (!sandbox) {
+    const indexPath = sandboxesIndex(root);
+    if (!(await fileExists(indexPath))) return { effectiveRoot: root, missionPath, missionId };
+    let index: SandboxesIndexDocument;
+    try {
+      index = await readIndex(root);
+    } catch {
+      return { effectiveRoot: root, missionPath, missionId, error: "Sandbox registry is invalid; refusing host-root fallback." };
+    }
+    const hasInvalidBinding = index.sandboxes.some((entry) => entry.mission_id === missionId && entry.status !== "discarded");
+    return hasInvalidBinding
+      ? { effectiveRoot: root, missionPath, missionId, error: `Sandbox binding for mission ${missionId} is invalid; refusing host-root fallback.` }
+      : { effectiveRoot: root, missionPath, missionId };
+  }
+  return {
+    effectiveRoot: sandbox.path,
+    missionPath: path.join(sandbox.path, ".harness", "missions", missionId, "mission.yaml"),
+    sandbox,
+    missionId,
+  };
 }
 
+
 export type { SandboxStatus };
diff --git a/src/harness/session-template-adoption.ts b/src/harness/session-template-adoption.ts
new file mode 100644
index 0000000..1cec0de
--- /dev/null
+++ b/src/harness/session-template-adoption.ts
@@ -0,0 +1,73 @@
+import { readFile } from "node:fs/promises";
+import { parse as parseYaml } from "yaml";
+import {
+  applySessionTemplate,
+  describeAppliedTemplate,
+  getSessionTemplate,
+  type AppliedTemplateDescription,
+} from "./session-templates.js";
+import type { SessionTemplate } from "../schema/session-template.js";
+
+/**
+ * The result of adopting a session template for one mission invocation.
+ *
+ * `runtimeConfigOverrides` is translated from the applied document into the
+ * extra runtime-config overrides the run path already accepts: the applied
+ * `runtime_config_overrides` keys, plus `limits` and `recovery` when the
+ * template (or mission) stated them. Callers spread an explicit
+ * `--runtime-config-overrides` on top so the command line still wins.
+ */
+export interface SessionTemplateAdoption {
+  template: SessionTemplate;
+  runtime: string;
+  description: AppliedTemplateDescription;
+  runtimeConfigOverrides: Record<string, unknown>;
+}
+
+/**
+ * Load a session template from the project root, apply it to the mission
+ * file, and translate the applied result into runtime-config overrides.
+ *
+ * Throws when the template is unknown or invalid, when the mission ends up
+ * violating strict containment, when the mission file is not a mapping, or
+ * when an explicit runtime conflicts with the template's adapter.
+ */
+export async function adoptSessionTemplate(input: {
+  root: string;
+  missionPath: string;
+  templateId: string;
+  explicitRuntime?: string;
+}): Promise<SessionTemplateAdoption> {
+  const template = await getSessionTemplate(input.root, input.templateId);
+
+  if (input.explicitRuntime !== undefined && input.explicitRuntime !== template.adapter) {
+    throw new Error(
+      `--runtime ${input.explicitRuntime} conflicts with session template "${template.id}" adapter ${template.adapter}`,
+    );
+  }
+
+  const parsed = parseYaml(await readFile(input.missionPath, "utf-8"));
+  if (parsed === null || typeof parsed !== "object" || Array.isArray(parsed)) {
+    throw new Error(`Mission file has no top-level mapping: ${input.missionPath}`);
+  }
+  const mission = parsed as Record<string, unknown>;
+
+  const applied = applySessionTemplate(mission, template);
+
+  const runtimeConfigOverrides: Record<string, unknown> = {
+    ...applied.runtime_config_overrides,
+  };
+  if (applied.limits !== undefined && Object.keys(applied.limits).length > 0) {
+    runtimeConfigOverrides.limits = applied.limits;
+  }
+  if (applied.recovery !== undefined) {
+    runtimeConfigOverrides.recovery = applied.recovery;
+  }
+
+  return {
+    template,
+    runtime: input.explicitRuntime ?? template.adapter,
+    description: describeAppliedTemplate(mission, template),
+    runtimeConfigOverrides,
+  };
+}
diff --git a/src/harness/session-templates.ts b/src/harness/session-templates.ts
new file mode 100644
index 0000000..2056690
--- /dev/null
+++ b/src/harness/session-templates.ts
@@ -0,0 +1,356 @@
+import path from "node:path";
+import { readdir, readFile, access } from "node:fs/promises";
+import { parse as parseYaml } from "yaml";
+import { harnessDir } from "./paths.js";
+import {
+  validateSessionTemplate,
+  type SessionTemplate,
+} from "../schema/session-template.js";
+
+const APPLIED_META = Symbol.for("uh.session-template.applied-meta");
+
+export interface LoadSessionTemplatesOptions {
+  onInvalid?: (filePath: string, error: unknown) => void;
+}
+
+export interface AppliedTemplateDescription {
+  template_id: string;
+  tier: SessionTemplate["tier"];
+  containment: SessionTemplate["containment"];
+  overridden_by_mission: string[];
+}
+
+export type AppliedMission<T extends Record<string, unknown> = Record<string, unknown>> = Omit<
+  T,
+  "adapter" | "attempts" | "runtime_config_overrides" | "limits" | "recovery" | "guard"
+> & {
+  adapter: SessionTemplate["adapter"];
+  attempts: number;
+  runtime_config_overrides: Record<string, unknown>;
+  limits?: SessionTemplate["limits"];
+  recovery?: SessionTemplate["recovery"];
+  guard?: {
+    write_roots?: string[];
+    deny_git_mutations?: boolean;
+    deny_package_installs?: boolean;
+    deny_network_clients?: boolean;
+    agent_clients?: string[];
+    allow_native_subagents?: boolean;
+  };
+};
+
+function templatesDir(root: string): string {
+  return path.join(harnessDir(root), "templates");
+}
+
+function isSafeTemplateId(id: string): boolean {
+  if (typeof id !== "string") return false;
+  if (id === "." || id === ".." || id.includes("/") || id.includes("\\")) {
+    return false;
+  }
+  return /^[a-zA-Z0-9][a-zA-Z0-9._-]*$/.test(id);
+}
+
+/**
+ * Loads session templates from `.harness/templates/*.yaml` (and `.yml`),
+ * sorted by id. An invalid file is reported with its path and skipped; it never
+ * makes the others unusable.
+ */
+export async function loadSessionTemplates(
+  root: string,
+  options: LoadSessionTemplatesOptions = {},
+): Promise<SessionTemplate[]> {
+  const dir = templatesDir(root);
+  let entries: string[];
+  try {
+    entries = await readdir(dir);
+  } catch (err) {
+    if ((err as NodeJS.ErrnoException).code === "ENOENT") {
+      return [];
+    }
+    throw err;
+  }
+
+  const yamlFiles = entries.filter(
+    (name) => name.endsWith(".yaml") || name.endsWith(".yml"),
+  );
+
+  const templates: SessionTemplate[] = [];
+
+  for (const fileName of yamlFiles) {
+    const filePath = path.join(dir, fileName);
+    try {
+      const content = await readFile(filePath, "utf-8");
+      const parsed = parseYaml(content);
+      const validated = validateSessionTemplate(parsed);
+      templates.push(validated);
+    } catch (err) {
+      options.onInvalid?.(filePath, err);
+      console.warn(
+        `[uh] Failed to load session template at ${filePath}: ${(err as Error).message}`,
+      );
+    }
+  }
+
+  return templates.sort((a, b) => a.id.localeCompare(b.id));
+}
+
+/**
+ * Retrieves a session template by id.
+ * Throws if the id is unsafe or the template does not exist.
+ */
+export async function getSessionTemplate(
+  root: string,
+  id: string,
+): Promise<SessionTemplate> {
+  if (!isSafeTemplateId(id)) {
+    throw new Error(`Invalid or unsafe session template id: "${id}"`);
+  }
+
+  const dir = templatesDir(root);
+  for (const ext of [".yaml", ".yml"]) {
+    const candidate = path.join(dir, `${id}${ext}`);
+    try {
+      await access(candidate);
+      const content = await readFile(candidate, "utf-8");
+      const parsed = parseYaml(content);
+      const validated = validateSessionTemplate(parsed);
+      if (validated.id === id) {
+        return validated;
+      }
+    } catch (err) {
+      if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
+        // Fall back to scanning all templates
+      }
+    }
+  }
+
+  const all = await loadSessionTemplates(root);
+  const match = all.find((t) => t.id === id);
+  if (match) {
+    return match;
+  }
+
+  throw new Error(`Session template not found: "${id}"`);
+}
+
+/**
+ * Merges a session template into a mission document.
+ * Precedence, most specific wins: values the mission states explicitly,
+ * then the template, then existing defaults.
+ * `runtime_config_overrides`, `limits` and `recovery` merge key by key at the top level;
+ * `guard` merges field by field, except that `write_roots` is never widened by a template:
+ * if the mission states `write_roots`, the template's are ignored.
+ */
+export function applySessionTemplate<T extends Record<string, unknown>>(
+  mission: T,
+  template: SessionTemplate,
+): AppliedMission<T> {
+  const result: Record<string, unknown> = { ...mission };
+
+  // 1. Adapter: mission explicit > template
+  if (mission.adapter !== undefined) {
+    result.adapter = mission.adapter;
+  } else {
+    result.adapter = template.adapter;
+  }
+
+  // 2. Attempts: mission explicit > template
+  if (mission.attempts !== undefined) {
+    result.attempts = mission.attempts;
+  } else {
+    result.attempts = template.attempts;
+  }
+
+  // 3. runtime_config_overrides: key by key at top level
+  result.runtime_config_overrides = {
+    ...(template.runtime_config_overrides ?? {}),
+    ...((mission.runtime_config_overrides as Record<string, unknown>) ?? {}),
+  };
+
+  // 4. limits: key by key at top level
+  const missionLimits = mission.limits as Record<string, unknown> | undefined;
+  if (template.limits !== undefined || missionLimits !== undefined) {
+    result.limits = {
+      ...(template.limits ?? {}),
+      ...(missionLimits ?? {}),
+    };
+  }
+
+  // 5. recovery: key by key at top level
+  const missionRecovery = mission.recovery as Record<string, unknown> | undefined;
+  if (template.recovery !== undefined || missionRecovery !== undefined) {
+    result.recovery = {
+      ...(template.recovery ?? {}),
+      ...(missionRecovery ?? {}),
+    };
+  }
+
+  // 6. guard: field by field, except write_roots is never widened
+  const missionGuard = mission.guard as Record<string, unknown> | undefined;
+  const templateGuard = template.guard;
+
+  if (missionGuard !== undefined || templateGuard !== undefined) {
+    const mergedGuard: Record<string, unknown> = {
+      ...(templateGuard ?? {}),
+      ...(missionGuard ?? {}),
+    };
+
+    if (missionGuard && "write_roots" in missionGuard && missionGuard.write_roots !== undefined) {
+      mergedGuard.write_roots = missionGuard.write_roots;
+    } else if (templateGuard && "write_roots" in templateGuard && templateGuard.write_roots !== undefined) {
+      mergedGuard.write_roots = templateGuard.write_roots;
+    } else {
+      delete mergedGuard.write_roots;
+    }
+
+    result.guard = mergedGuard;
+  }
+
+  // 7. Strict containment verification
+  if (template.containment === "strict") {
+    const guard = result.guard as {
+      write_roots?: string[];
+      allow_native_subagents?: boolean;
+      deny_network_clients?: boolean;
+    } | undefined;
+
+    const writeRoots = guard?.write_roots;
+    if (!Array.isArray(writeRoots) || writeRoots.length === 0) {
+      throw new Error(
+        "Strict containment violation: mission ends up with no explicit guard.write_roots",
+      );
+    }
+
+    for (const root of writeRoots) {
+      const normalized = path.posix
+        .normalize(root.trim().replaceAll("\\", "/"))
+        .replace(/^\.\/+/, "");
+      if (normalized === "." || normalized === "") {
+        throw new Error(
+          'Strict containment violation: write root "." is not allowed in strict containment',
+        );
+      }
+      if (
+        path.isAbsolute(root) ||
+        root.startsWith("/") ||
+        root.startsWith("\\") ||
+        /^[a-zA-Z]:[/\\]/.test(root)
+      ) {
+        throw new Error(
+          `Strict containment violation: absolute write root "${root}" is not allowed in strict containment`,
+        );
+      }
+    }
+
+    if (guard?.allow_native_subagents === true) {
+      throw new Error(
+        "Strict containment violation: allow_native_subagents must not be true in strict containment",
+      );
+    }
+
+    if (guard?.deny_network_clients === false) {
+      throw new Error(
+        "Strict containment violation: deny_network_clients must not be false in strict containment",
+      );
+    }
+  }
+
+  // Compute description for later index inspection
+  const desc = describeAppliedTemplate(mission, template);
+  Object.defineProperty(result, APPLIED_META, {
+    value: desc,
+    enumerable: false,
+    configurable: true,
+    writable: true,
+  });
+
+  return result as AppliedMission<T>;
+}
+
+/**
+ * Returns a small description record listing which template keys the mission overrode.
+ */
+export function describeAppliedTemplate(
+  mission: Record<string, unknown>,
+  template: SessionTemplate,
+): AppliedTemplateDescription {
+  // If the mission was already applied through applySessionTemplate, reuse stored metadata
+  const storedMeta = (mission as Record<symbol, unknown>)[APPLIED_META] as
+    | AppliedTemplateDescription
+    | undefined;
+  if (storedMeta && storedMeta.template_id === template.id) {
+    return storedMeta;
+  }
+
+  const overridden: string[] = [];
+
+  if (template.adapter !== undefined && mission.adapter !== undefined) {
+    overridden.push("adapter");
+  }
+
+  if (template.attempts !== undefined && mission.attempts !== undefined) {
+    overridden.push("attempts");
+  }
+
+  if (template.runtime_config_overrides !== undefined) {
+    const missionOverrides = mission.runtime_config_overrides as
+      | Record<string, unknown>
+      | undefined;
+    if (
+      missionOverrides &&
+      typeof missionOverrides === "object" &&
+      Object.keys(missionOverrides).length > 0
+    ) {
+      overridden.push("runtime_config_overrides");
+    }
+  }
+
+  if (template.limits !== undefined) {
+    const missionLimits = mission.limits as
+      | Record<string, unknown>
+      | undefined;
+    if (
+      missionLimits &&
+      typeof missionLimits === "object" &&
+      Object.keys(missionLimits).length > 0
+    ) {
+      overridden.push("limits");
+    }
+  }
+
+  if (template.recovery !== undefined) {
+    const missionRecovery = mission.recovery as
+      | Record<string, unknown>
+      | undefined;
+    if (
+      missionRecovery &&
+      typeof missionRecovery === "object" &&
+      Object.keys(missionRecovery).length > 0
+    ) {
+      overridden.push("recovery");
+    }
+  }
+
+  if (template.guard !== undefined) {
+    const missionGuard = mission.guard as
+      | Record<string, unknown>
+      | undefined;
+    if (
+      missionGuard &&
+      typeof missionGuard === "object" &&
+      Object.keys(missionGuard).length > 0
+    ) {
+      overridden.push("guard");
+    }
+  }
+
+  overridden.sort();
+
+  return {
+    template_id: template.id,
+    tier: template.tier,
+    containment: template.containment,
+    overridden_by_mission: overridden,
+  };
+}
diff --git a/src/harness/skill.ts b/src/harness/skill.ts
index 0f5815d..7aeda3f 100644
--- a/src/harness/skill.ts
+++ b/src/harness/skill.ts
@@ -1,5 +1,6 @@
 import { lstat, readFile, writeFile } from "node:fs/promises";
 import path from "node:path";
+import { relativeArtifactPath } from "./artifact-paths.js";
 import { parse, stringify } from "yaml";
 import { z } from "zod";
 import {
@@ -85,7 +86,7 @@ export async function addSkill(root: string, dir: string): Promise<AddSkillResul
     throw new Error(`Skill already registered: id ${frontmatter.id}`);
   }
 
-  const relPath = path.relative(projectRoot, skillDir);
+  const relPath = relativeArtifactPath(projectRoot, skillDir);
   const entry: SkillIndexEntry = {
     id: frontmatter.id,
     name: frontmatter.name,
diff --git a/src/harness/spec-templates.ts b/src/harness/spec-templates.ts
index b9d079f..ad36a73 100644
--- a/src/harness/spec-templates.ts
+++ b/src/harness/spec-templates.ts
@@ -3,7 +3,7 @@
  *
  * Starter `.spec.md` documents that conform to `uh.spec.v0` (see
  * src/harness/spec-loader.ts). These constants are the source of truth and
- * ship in the package; identical copies live under `docs/specs/templates/`
+ * ship in the package; identical copies live under `specs/templates/`
  * for discoverability, kept in sync by a drift test.
  */
 
diff --git a/src/harness/status-json.ts b/src/harness/status-json.ts
index 72903c6..b480716 100644
--- a/src/harness/status-json.ts
+++ b/src/harness/status-json.ts
@@ -4,12 +4,16 @@ import { parse } from "yaml";
 import { adaptersDir, missionsDir } from "./paths.js";
 import { detectAll } from "./validate/drift/registry.js";
 import { RuntimeResultSchema, type RuntimeResultDocument } from "../schema/artifacts.js";
+import { acceptanceStatus } from "./acceptance.js";
+import { liveRunCounts } from "./live-runs.js";
 
 /**
  * UH-78 LLM-less status query mode. Produces a stable JSON document for
  * external consumers (Hermes Dashboard plugin, scripts). MUST NOT spawn any
  * subprocesses — every field is read from disk so warm-state stays sub-30ms
- * on fixtures with 50 missions.
+ * on fixtures with 50 missions. The one exception is `live_runs`: when the
+ * project-root live-run registry is non-empty, liveness is resolved with the
+ * native process lister (and never when there is nothing live to check).
  */
 export const STATUS_JSON_SCHEMA = "uh.status.v0";
 
@@ -37,6 +41,21 @@ export type StatusJsonMission = {
   finished_at: string;
 };
 
+export type StatusJsonAcceptance = {
+  proven: number;
+  stale: number;
+  failed: number;
+  unproven: number;
+  failed_ids: string[];
+  unproven_ids: string[];
+};
+
+/** Live-run registry counts, from the same function as `uh ps`. */
+export type StatusJsonLiveRuns = {
+  total: number;
+  orphaned: number;
+};
+
 export type StatusJsonDocument = {
   schema_version: typeof STATUS_JSON_SCHEMA;
   generated_at: string;
@@ -52,6 +71,8 @@ export type StatusJsonDocument = {
     kinds_with_issues: number;
     issues_total: number;
   };
+  acceptance: StatusJsonAcceptance;
+  live_runs: StatusJsonLiveRuns;
 };
 
 export type GetStatusJsonOptions = {
@@ -79,6 +100,18 @@ export async function getStatusJson(
   const drift = await detectAll(root);
   const kindsWithIssues = new Set(drift.map((i) => i.kind)).size;
   const recentRunsLimit = options.recentRunsLimit ?? DEFAULT_RECENT_RUNS_LIMIT;
+  let acceptance: StatusJsonAcceptance = { proven: 0, stale: 0, failed: 0, unproven: 0, failed_ids: [], unproven_ids: [] };
+  try {
+    const summary = await acceptanceStatus(root);
+    acceptance = {
+      ...summary.counts,
+      failed_ids: summary.failed,
+      unproven_ids: summary.unproven,
+    };
+  } catch {
+    // Projects created before acceptance evidence may not have a registry.
+  }
+  const liveRuns = await liveRunCounts(root);
   return {
     schema_version: STATUS_JSON_SCHEMA,
     generated_at: options.now ?? new Date().toISOString(),
@@ -88,6 +121,8 @@ export async function getStatusJson(
     missions: { total: missions.total, by_status: missions.byStatus },
     recent_runs: missions.recentRuns.slice(0, recentRunsLimit),
     drift: { kinds_with_issues: kindsWithIssues, issues_total: drift.length },
+    acceptance,
+    live_runs: liveRuns,
   };
 }
 
diff --git a/src/harness/status.ts b/src/harness/status.ts
index 4cd5b9c..b695d01 100644
--- a/src/harness/status.ts
+++ b/src/harness/status.ts
@@ -17,6 +17,7 @@ import {
   type SandboxStatus,
 } from "../schema/artifacts.js";
 import { MissionSchema } from "../schema/mission.js";
+import { acceptanceStatus } from "./acceptance.js";
 
 export type AdapterInfo = {
   id: string;
@@ -42,6 +43,14 @@ export type StatusResult = {
   sandboxes: SandboxStatusSummary;
   verified_missions_count: number;
   promoted_missions_count: number;
+  acceptance: {
+    proven: number;
+    stale: number;
+    failed: number;
+    unproven: number;
+    failed_ids: string[];
+    unproven_ids: string[];
+  };
 };
 
 export async function getStatus(root: string): Promise<StatusResult> {
@@ -63,6 +72,13 @@ export async function getStatus(root: string): Promise<StatusResult> {
   const sandboxes = await summarizeSandboxes(sandboxesIndex(root));
   const verifiedMissions = await countPassedVerificationMissionDirs(missionsDir(root));
   const promotedMissions = await countPromotedMissionDirs(missionsDir(root));
+  let acceptance = { proven: 0, stale: 0, failed: 0, unproven: 0, failed_ids: [] as string[], unproven_ids: [] as string[] };
+  try {
+    const summary = await acceptanceStatus(root);
+    acceptance = { ...summary.counts, failed_ids: summary.failed, unproven_ids: summary.unproven };
+  } catch {
+    // Acceptance registry is optional for older projects.
+  }
 
   return {
     name: String(project.name ?? "unknown"),
@@ -75,6 +91,7 @@ export async function getStatus(root: string): Promise<StatusResult> {
     sandboxes,
     verified_missions_count: verifiedMissions,
     promoted_missions_count: promotedMissions,
+    acceptance,
   };
 }
 
diff --git a/src/harness/steer.ts b/src/harness/steer.ts
new file mode 100644
index 0000000..29ae25e
--- /dev/null
+++ b/src/harness/steer.ts
@@ -0,0 +1,316 @@
+import path from "node:path";
+import { z } from "zod";
+import {
+  defaultProcessLister,
+  discoverRuns,
+  findProjectRoot,
+  liveness,
+  type LivenessVerdict,
+  type NativeProcess,
+} from "./live-runs.js";
+import { runRootForRecord } from "./mission-cancel.js";
+import { getMissionArtifactContext, writeArtifactFile } from "../adapters/_artifact-context.js";
+import { assertValidRunId, generateRunId } from "./run-id.js";
+import type { ResumeOrigin } from "./runtime-recovery.js";
+
+/**
+ * UH steer / resume — message a running worker across a stop and a restart.
+ *
+ * A worker can be stopped but, until now, could not be nudged: its only mid-run
+ * control was `uh kill`. Command Code (and oh-my-pi and Claude Code) accept
+ * `--resume <session-id>`, and the adapters already implement `resume_from_run`
+ * with recovery notes. Steering is therefore: stop the run cleanly, then resume
+ * its native session with the operator's message injected as the first
+ * instruction of the resumed turn.
+ *
+ * `uh steer` costs a stop and a restart of the native session — it is not a
+ * live channel — but the transcript and the prior work are preserved through
+ * the native resume.
+ *
+ * This module is deliberately free of CLI and adapter wiring: it resolves a run
+ * through the same discovery `uh ps` uses, refuses the cases it cannot honor,
+ * and delegates the actual re-execution to an injected runner.
+ */
+
+/** Runtimes with a native session resume path. */
+export const RESUMABLE_RUNTIMES = ["oh-my-pi", "command-code", "claude-code"] as const;
+
+export function runtimeSupportsResume(runtime: string): boolean {
+  return (RESUMABLE_RUNTIMES as readonly string[]).includes(runtime);
+}
+
+export class UnsupportedResumeError extends Error {
+  readonly runtime: string;
+
+  constructor(runtime: string) {
+    super(`unsupported: ${runtime} has no session resume`);
+    this.name = "UnsupportedResumeError";
+    this.runtime = runtime;
+  }
+}
+
+/**
+ * The fixed status-report request `uh steer --report` injects before the
+ * operator's message, so a nudge always yields the same shape of answer.
+ */
+export const REPORT_REQUEST = `Before anything else, write a status report for the operator in exactly this shape:
+1. Done so far
+2. In progress
+3. Blocked on
+4. Next three actions
+5. Files touched
+Write the report first, then continue your work.`;
+
+/** Default instruction for an operator resume that supplied no `--notes`. */
+export const DEFAULT_OPERATOR_RESUME_NOTE =
+  "Resume the saved session and continue the mission from where the previous attempt stopped.";
+
+/** Compose the note injected into a resumed turn; `--report` prepends the fixed request. */
+export function steerNotes(message: string, report: boolean): string {
+  const trimmed = message.trim();
+  if (!report) return trimmed;
+  return trimmed.length === 0 ? REPORT_REQUEST : `${REPORT_REQUEST}\n\n${trimmed}`;
+}
+
+/**
+ * The operator-authored lineage of a resume, written in both directions:
+ * `resumed_from` on the new run, `resumed_by` on the source run.
+ */
+export const ResumeLinkSchema = z
+  .object({
+    schema_version: z.literal("uh.resume-link.v0"),
+    mission_id: z.string().min(1),
+    run_id: z.string().min(1),
+    runtime: z.string().min(1),
+    resume_origin: z.literal("operator"),
+    resumed_from: z.string().min(1).optional(),
+    resumed_by: z.string().min(1).optional(),
+    report: z.boolean().default(false),
+    created_at: z.string().min(1),
+  })
+  .strict();
+export type ResumeLink = z.infer<typeof ResumeLinkSchema>;
+
+/** A discovered run resolved to everything a resume needs. */
+export interface ResumableRun {
+  runId: string;
+  missionId: string;
+  runtime: string;
+  /** Absolute artifact root that owns the source run; the new run lands here. */
+  artifactRoot: string;
+  missionPath: string;
+  sessionId?: string;
+  stopCode?: string;
+  status?: string;
+  liveness: LivenessVerdict;
+}
+
+/** What the injected runner is asked to execute for one resumed attempt. */
+export interface ResumeRequest {
+  artifactRoot: string;
+  missionId: string;
+  missionPath: string;
+  runtime: string;
+  sourceRunId: string;
+  /** The new attempt's run id. */
+  runId: string;
+  /** Notes injected as the first instruction of the resumed turn. */
+  recoveryNotes: string;
+  report: boolean;
+}
+
+export interface ResumeResult {
+  runId: string;
+  sourceRunId: string;
+  missionId: string;
+  runtime: string;
+  report: boolean;
+  cancelled: boolean;
+  origin: ResumeOrigin;
+}
+
+export interface ResolveRunDeps {
+  processes?: NativeProcess[];
+  now?: number;
+}
+
+export interface SteerDeps {
+  run: (request: ResumeRequest) => Promise<{ runId?: string }>;
+  cancel: (root: string, missionId: string, runId: string) => Promise<{ ok: boolean; status: string }>;
+  processes?: NativeProcess[];
+  now?: number;
+  newRunId?: () => string;
+}
+
+/**
+ * Resolve a run id (exact or a unique prefix) through the live-run registry and
+ * the bounded harness scan, so a team worker's artifact root is never something
+ * the operator has to type.
+ */
+export async function resolveResumableRun(
+  root: string,
+  runRef: string,
+  deps: ResolveRunDeps = {},
+): Promise<ResumableRun> {
+  assertValidRunId(runRef);
+  const projectRoot = (await findProjectRoot(root)) ?? path.resolve(root);
+  const runs = await discoverRuns(projectRoot, { includeSettled: true, persist: false });
+  const exact = runs.find((record) => record.run_id === runRef);
+  const matches = exact ? [exact] : runs.filter((record) => record.run_id.startsWith(runRef));
+  if (matches.length === 0) throw new Error(`run ${runRef} was not found from ${projectRoot}`);
+  if (matches.length > 1) {
+    throw new Error(`run reference ${runRef} is ambiguous: ${matches.map((record) => record.run_id).join(", ")}`);
+  }
+  const record = matches[0]!;
+  const artifactRoot = runRootForRecord(projectRoot, record);
+  const processes = deps.processes ?? (await defaultProcessLister());
+  const now = deps.now ?? Date.now();
+  return {
+    runId: record.run_id,
+    missionId: record.mission_id,
+    runtime: record.runtime,
+    artifactRoot,
+    missionPath: path.join(artifactRoot, ".harness", "missions", record.mission_id, "mission.yaml"),
+    ...(record.session_id !== undefined ? { sessionId: record.session_id } : {}),
+    ...(record.stop_code !== undefined ? { stopCode: record.stop_code } : {}),
+    ...(record.status !== undefined ? { status: record.status } : {}),
+    liveness: liveness(record, processes, { now }),
+  };
+}
+
+export function assertResumableRuntime(runtime: string): void {
+  if (!runtimeSupportsResume(runtime)) throw new UnsupportedResumeError(runtime);
+}
+
+/** A resume only ever overlays a settled attempt. A live one is steered instead. */
+function assertSettledForResume(target: ResumableRun): void {
+  if (target.liveness === "settled") return;
+  if (target.liveness === "live") {
+    throw new Error(
+      `run ${target.runId} is still live; use "uh steer ${target.runId} \\"<message>\\"" to message it, or wait for it to settle`,
+    );
+  }
+  throw new Error(`run ${target.runId} is ${target.liveness}; settle it before resuming (uh kill ${target.runId})`);
+}
+
+/**
+ * Start a new run for the same mission, in the same artifact root and sandbox,
+ * bound to `resume_from_run`. Records the operator lineage in both directions.
+ */
+async function performResume(
+  target: ResumableRun,
+  options: { notes: string; report: boolean; cancelled: boolean },
+  deps: SteerDeps,
+): Promise<ResumeResult> {
+  const runId = (deps.newRunId ?? generateRunId)();
+  assertValidRunId(runId);
+  const outcome = await deps.run({
+    artifactRoot: target.artifactRoot,
+    missionId: target.missionId,
+    missionPath: target.missionPath,
+    runtime: target.runtime,
+    sourceRunId: target.runId,
+    runId,
+    recoveryNotes: options.notes,
+    report: options.report,
+  });
+  const finalRunId = outcome?.runId ?? runId;
+  await recordResumeLinks(target, finalRunId, options.report);
+  return {
+    runId: finalRunId,
+    sourceRunId: target.runId,
+    missionId: target.missionId,
+    runtime: target.runtime,
+    report: options.report,
+    cancelled: options.cancelled,
+    origin: "operator",
+  };
+}
+
+async function recordResumeLinks(target: ResumableRun, newRunId: string, report: boolean): Promise<void> {
+  const newArtifacts = await getMissionArtifactContext(target.artifactRoot, target.missionPath, newRunId);
+  const sourceArtifacts = await getMissionArtifactContext(target.artifactRoot, target.missionPath, target.runId);
+  if (!newArtifacts || !sourceArtifacts) {
+    throw new Error(`mission ${target.missionId} is not a canonical UH artifact directory; cannot record the resume link`);
+  }
+  const createdAt = new Date().toISOString();
+  const forward = ResumeLinkSchema.parse({
+    schema_version: "uh.resume-link.v0",
+    mission_id: target.missionId,
+    run_id: newRunId,
+    runtime: target.runtime,
+    resume_origin: "operator",
+    resumed_from: target.runId,
+    report,
+    created_at: createdAt,
+  });
+  const backward = ResumeLinkSchema.parse({
+    schema_version: "uh.resume-link.v0",
+    mission_id: target.missionId,
+    run_id: target.runId,
+    runtime: target.runtime,
+    resume_origin: "operator",
+    resumed_by: newRunId,
+    report,
+    created_at: createdAt,
+  });
+  await writeArtifactFile(newArtifacts.missionDir, path.join(newArtifacts.runDir, "resume-link.json"), JSON.stringify(forward, null, 2));
+  await writeArtifactFile(sourceArtifacts.missionDir, path.join(sourceArtifacts.runDir, "resume-link.json"), JSON.stringify(backward, null, 2));
+}
+
+export interface ResumeOptions {
+  notes?: string;
+}
+
+/**
+ * `uh resume` — continue a settled run's native session as a new attempt.
+ * Refuses a live run (steer it), an ambiguous reference, and a runtime with no
+ * session resume.
+ */
+export async function resumeRun(
+  root: string,
+  runRef: string,
+  options: ResumeOptions,
+  deps: SteerDeps,
+): Promise<ResumeResult> {
+  const target = await resolveResumableRun(root, runRef, resolveDeps(deps));
+  assertResumableRuntime(target.runtime);
+  assertSettledForResume(target);
+  const notes = (options.notes ?? "").trim() || DEFAULT_OPERATOR_RESUME_NOTE;
+  return performResume(target, { notes, report: false, cancelled: false }, deps);
+}
+
+export interface SteerOptions {
+  report?: boolean;
+}
+
+/**
+ * `uh steer` — cancel a run through the standard cancel path, then resume its
+ * native session with `message` as the recovery notes. Costs a stop and a
+ * restart of the native session.
+ */
+export async function steerRun(
+  root: string,
+  runRef: string,
+  message: string,
+  options: SteerOptions,
+  deps: SteerDeps,
+): Promise<ResumeResult> {
+  const target = await resolveResumableRun(root, runRef, resolveDeps(deps));
+  assertResumableRuntime(target.runtime);
+  if (message.trim().length === 0) throw new Error("steer requires a non-empty message");
+  const report = options.report === true;
+  let cancelled = false;
+  if (target.liveness !== "settled") {
+    await deps.cancel(root, target.missionId, target.runId);
+    cancelled = true;
+  }
+  return performResume(target, { notes: steerNotes(message, report), report, cancelled }, deps);
+}
+
+function resolveDeps(deps: SteerDeps): ResolveRunDeps {
+  return {
+    ...(deps.processes !== undefined ? { processes: deps.processes } : {}),
+    ...(deps.now !== undefined ? { now: deps.now } : {}),
+  };
+}
diff --git a/src/harness/team-run.ts b/src/harness/team-run.ts
index f549335..1f118ab 100644
--- a/src/harness/team-run.ts
+++ b/src/harness/team-run.ts
@@ -1,9 +1,14 @@
+import { mapResourceWaves, workerConcurrency } from "./runtime-resources.js";
+import { DEFAULT_PROTECTED_PATHS, RuntimeControlSchema, type RuntimeLimits, type TeamResourceLimits } from "../schema/runtime-control.js";
+import type { TeamWorker } from "../schema/mission.js";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import { verifyExpectedArtifact } from "./output-verification.js";
 /**
  * UH-72 — Team mission runtime.
  *
  * Fans a single mission out across N adapter-bound workers (each in its
- * own git worktree on a dedicated branch), then asks a leader runtime to
- * integrate the worker diffs and runs the existing verification pipeline
+ * own git worktree on a dedicated branch), mechanically integrates the
+ * worker diffs, and runs the existing verification pipeline
  * against the integrated result.
  *
  * The plan/run split mirrors `runtimeRegistry` and `run-all`:
@@ -25,10 +30,32 @@
 import { execFile } from "node:child_process";
 import { mkdir, readFile, rm, writeFile } from "node:fs/promises";
 import path from "node:path";
+import { parse, stringify } from "yaml";
 import { promisify } from "node:util";
-import { harnessDir, missionsDir } from "./paths.js";
+import { harnessDir, missionRunDir, missionsDir } from "./paths.js";
+import {
+  appendRunsIndexEntry,
+  generateRunId,
+  readLatestPointer,
+  writeLatestPointer,
+} from "./run-id.js";
+import {
+  RuntimeResultSchema,
+  type RuntimeResultDocument,
+  type RuntimeResultStatus,
+} from "../schema/artifacts.js";
+import {
+  CanonicalTeamStateSchema,
+  type CanonicalTeamState,
+  type CanonicalTeamStatus,
+  type CanonicalTeamWorker,
+} from "../schema/team.js";
+import { loadMissionFile } from "./capabilities.js";
+import { aggregateRuntimeUsage, type RuntimeUsage } from "./usage.js";
+import { readRuntimeAccounting } from "./runtime-accounting.js";
 import { assertSafeMissionId, assertWithinRoot, fileExists } from "./mission.js";
-
+import { registerLiveRun } from "./live-runs.js";
+import { reconcileRuntimeResultControl } from "./runtime-settlement.js";
 const execFileP = promisify(execFile);
 
 /* -------------------------------------------------------------------------- */
@@ -37,31 +64,29 @@ const execFileP = promisify(execFile);
 
 export type LeaderStrategy = "merge" | "cherry-pick" | "rebase";
 
-export interface TeamWorker {
-  /** Stable role name used in worktree paths and branch names. */
-  role: string;
-  /** Adapter id the worker dispatches against (hermes, codex, ...). */
-  adapter: string;
-  /** Expand to N instances. Default 1. */
-  count?: number;
-}
+export type { TeamWorker } from "../schema/mission.js";
+type TeamWorkerSpec = Omit<TeamWorker, "adapter"> & { adapter: string };
 
 export interface TeamLeader {
   /** Adapter id the leader dispatches against. */
   adapter: string;
+  /** Stable role used by the canonical Observatory agent identity. */
+  role?: string;
 }
 
 export interface TeamMission {
   /** Mission id; matches the directory under .harness/missions/. */
   id: string;
   team: {
-    workers: TeamWorker[];
+    workers: TeamWorkerSpec[];
     leader: TeamLeader;
+    resources?: TeamResourceLimits;
   };
   /** Optional override for the integration-report path. */
   integration_report_path?: string;
 }
 
+
 export interface WorkerPlan {
   role: string;
   adapter: string;
@@ -70,6 +95,7 @@ export interface WorkerPlan {
   id: string;
   worktreePath: string;
   branch: string;
+  spec?: TeamWorkerSpec;
 }
 
 export interface LeaderPlan {
@@ -87,18 +113,40 @@ export interface TeamPlan {
   integrationReportPath: string;
 }
 
+/** Canonical artifact identity supplied to each runtime worker. */
+export interface TeamRuntimeContext {
+  artifactRoot: string;
+  runId: string;
+  missionId?: string;
+  limits?: RuntimeLimits;
+  onAttempt?: (runId: string) => Promise<void>;
+}
+
 /** Mirror of `RuntimeRunResult` to avoid a circular import with run-all. */
 export interface TeamRuntimeRunResult {
   exitCode: number;
   stdout: string;
   stderr: string;
-  result?: { status?: string; errors?: string[] };
+  result?: {
+    status?: string;
+    completion?: "complete" | "incomplete";
+    incomplete_reason?: string;
+    errors?: string[];
+    provider?: string;
+    model?: string;
+    usage?: RuntimeUsage;
+    cost_usd?: number;
+    started_at?: string;
+    finished_at?: string;
+  };
+  runId?: string;
 }
 
 export type TeamRuntimeRunner = (
   adapter: string,
   root: string,
   missionPath: string,
+  context: TeamRuntimeContext,
 ) => Promise<TeamRuntimeRunResult>;
 
 export interface VerifyMissionLike {
@@ -118,9 +166,13 @@ export interface VerifyMissionLike {
 export type TeamVerifier = (root: string, missionId: string) => Promise<VerifyMissionLike>;
 
 export interface GitOps {
-  /** `git worktree add -b <branch> <path> <baseRef>` */
+  /** `git worktree add --lock --reason uh:<branch> -b <branch> <path> <baseRef>` */
   addWorktree: (root: string, branch: string, worktreePath: string, baseRef: string) => Promise<void>;
-  /** `git worktree remove --force <path>` (silent on missing). */
+  /**
+   * `git worktree unlock <path>` (tolerating "is not locked") then
+   * `git worktree remove [--force] <path>`. Never prunes globally, and is
+   * silent when the worktree is already gone.
+   */
   removeWorktree: (root: string, worktreePath: string) => Promise<void>;
   /** Run `git merge <branch>` in `cwd`. Returns a structured outcome; never throws on conflicts. */
   merge: (cwd: string, branch: string) => Promise<MergeOutcome>;
@@ -130,6 +182,13 @@ export interface GitOps {
   deleteBranch: (root: string, branch: string) => Promise<void>;
   /** Stage + commit any uncommitted changes in `cwd`. No-op when worktree is clean. */
   commitAll: (cwd: string, message: string) => Promise<void>;
+  /**
+   * List the paths with uncommitted changes (staged, unstaged, untracked) in a
+   * worktree, relative to the worktree root. Used to decide whether a stopped
+   * worker produced salvageable work outside the protected roots. Optional so
+   * existing test doubles stay valid; when absent, salvage cannot be evaluated.
+   */
+  dirtyPaths?: (cwd: string) => Promise<string[]>;
 }
 
 export interface MergeOutcome {
@@ -177,6 +236,47 @@ export interface WorkerOutcome {
   merge: MergeOutcome | null;
   /** True when the leader successfully integrated this worker's branch. */
   integrated: boolean;
+  /** Canonical native artifact identity retained outside the worktree. */
+  runId?: string;
+  artifactScope?: string;
+  runtimeResult?: RuntimeResultDocument;
+  /** Stop code from the worker's runtime control receipt, when one was read. */
+  stopCode?: string;
+  /** Salvage record for a failed worker whose stop code permits salvage. */
+  salvage?: WorkerSalvage;
+  /** Why a settled worker's non-zero exit did not fail it (rendered as a report warning). */
+  postRunWarning?: string;
+}
+
+/** A worker's salvage record (see `CanonicalWorkerSalvageSchema`). */
+export type WorkerSalvage = NonNullable<CanonicalTeamWorker["salvage"]>;
+
+/**
+ * Stop codes that mean a worker ran out of budget or was halted by safety,
+ * rather than failing on its own merits. A worker stopped by one of these may
+ * still hold a complete, verifiable change in its worktree.
+ */
+const SALVAGE_STOP_CODES = new Set(["turn_limit", "timeout", "deadline", "stall", "policy"]);
+
+/** True when `candidate` equals or lives under any protected root. */
+function isProtectedPath(candidate: string, protectedRoots: readonly string[]): boolean {
+  const normalized = candidate.replace(/\\/g, "/").replace(/^\.\/+/, "").replace(/\/+$/, "").toLowerCase();
+  if (normalized.length === 0) return true;
+  return protectedRoots.some((root) => {
+    const normalizedRoot = root.replace(/\\/g, "/").replace(/\/+$/, "").toLowerCase();
+    return normalized === normalizedRoot || normalized.startsWith(`${normalizedRoot}/`);
+  });
+}
+
+/** Read the stop code off a worker run's persisted runtime control receipt. */
+async function readWorkerStopCode(artifactRoot: string, missionId: string, runId: string): Promise<string | undefined> {
+  const controlPath = path.join(artifactRoot, ".harness", "missions", missionId, "runs", runId, "runtime-control.json");
+  try {
+    const control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf-8")));
+    return control.stop_code;
+  } catch {
+    return undefined;
+  }
 }
 
 /**
@@ -184,9 +284,9 @@ export interface WorkerOutcome {
  *
  * UH-127: `passed_partial` is a clearly-named NON-blocking status for the case
  * where M<N workers landed but the integrated subset is shippable — leader
- * integration is clean for the surviving workers AND verification passed on the
- * integrated result. It is distinct from `passed` (every worker integrated) and
- * from `blocked` (genuine verification failure / nothing integrated / no
+ * integration is clean for the surviving workers AND verification passed on
+ * the integrated result. It is distinct from `passed` (every worker integrated)
+ * and from `blocked` (genuine verification failure / nothing integrated / no
  * verifier wired). Callers that gate on success should treat `passed_partial`
  * as a success-with-caveats, not a hard block.
  */
@@ -203,6 +303,8 @@ export interface TeamRunResult {
   /** True when at least one worker failed or had a merge conflict. */
   hadConflicts: boolean;
   retained: boolean;
+  /** Canonical parent run identity. */
+  runId?: string;
 }
 
 /* -------------------------------------------------------------------------- */
@@ -254,6 +356,7 @@ export function planTeamRun(
         id,
         worktreePath,
         branch: `uh/team/${mission.id}/${id}`,
+        spec,
       });
     }
   }
@@ -304,21 +407,48 @@ function isSafeSegment(value: string): boolean {
 /* Default git ops (real `git` CLI)                                           */
 /* -------------------------------------------------------------------------- */
 
+/**
+ * A worker commit must contain only the worker's own work. `.harness`,
+ * `.commandcode`, `.omp`, and `.pi` hold harness-owned artifacts the harness
+ * itself writes into the worker root — derived/re-seeded mission packets, the
+ * Command Code hook configuration (absolute local paths), the worktree-local
+ * `.harness/.gitignore`, per-run session state, and the audit log. `.git` is
+ * dropped because git never stages its own metadata directory.
+ *
+ * These are applied as pathspec exclusions so tracked and untracked files
+ * alike stay out of the commit — an ignore rule cannot cover a file the
+ * repository already tracks. A worker that produced nothing else therefore has
+ * nothing staged and no commit is created. A tracked protected file the worker
+ * (or harness) modified is left unstaged, never reset or restored.
+ */
+const COMMIT_PROTECTED_EXCLUDES = DEFAULT_PROTECTED_PATHS
+  .filter((protectedPath) => protectedPath !== ".git")
+  .map((protectedPath) => `:(exclude)${protectedPath}`);
+
 export const defaultGitOps: GitOps = {
   async addWorktree(root, branch, worktreePath, baseRef) {
-    await execFileP("git", ["worktree", "add", "-b", branch, worktreePath, baseRef], { cwd: root });
+    // Lock the registration so a `git worktree prune` run elsewhere (another
+    // controller, or a removable/network volume that is briefly unmounted)
+    // cannot delete this worktree's administrative entry behind our back. No
+    // run id is in scope here, so the branch name is the lock identifier.
+    await execFileP("git", ["worktree", "add", "--lock", "--reason", `uh:${branch}`, "-b", branch, worktreePath, baseRef], { cwd: root });
   },
   async removeWorktree(root, worktreePath) {
-    if (!(await fileExists(worktreePath))) {
-      try { await execFileP("git", ["worktree", "prune"], { cwd: root }); } catch { /* tolerated */ }
-      return;
-    }
+    // A locked worktree refuses `remove` until it is unlocked; an already
+    // unlocked one reports "is not locked", a no-op we tolerate. We NEVER run
+    // `git worktree prune` here: it deletes the registration of every worktree
+    // whose directory is missing at that instant — other controllers'
+    // worktrees, or ones parked on a removable/network volume — leaving their
+    // directories "not a git repository" even when they come back. When this
+    // worktree's directory was deleted out of band we drop only its own
+    // registration; if git still refuses we leave the orphan for
+    // `git worktree list` to surface.
+    try {
+      await execFileP("git", ["worktree", "unlock", worktreePath], { cwd: root });
+    } catch { /* tolerated: not locked, or already unregistered */ }
     try {
       await execFileP("git", ["worktree", "remove", "--force", worktreePath], { cwd: root });
-    } catch {
-      // Best-effort; orphans surface via `git worktree list`.
-      try { await execFileP("git", ["worktree", "prune"], { cwd: root }); } catch { /* tolerated */ }
-    }
+    } catch { /* best-effort; orphans surface via `git worktree list` */ }
   },
   async merge(cwd, branch) {
     try {
@@ -373,8 +503,14 @@ export const defaultGitOps: GitOps = {
     } catch { /* best-effort */ }
   },
   async commitAll(cwd, message) {
-    await execFileP("git", ["add", "-A"], { cwd });
-    const { stdout } = await execFileP("git", ["status", "--porcelain"], { cwd });
+    // Stage only the worker's own work. The protected roots are excluded by
+    // pathspec, so a tracked or untracked harness-owned file is never staged
+    // and a worker that produced nothing else stages nothing.
+    await execFileP("git", ["add", "-A", "--", ".", ...COMMIT_PROTECTED_EXCLUDES], { cwd });
+    // Any residual protected-root changes stay in the worktree unstaged (the
+    // worktree is discarded or retained as evidence), so gate the commit on the
+    // INDEX being non-empty rather than on the worktree being clean.
+    const { stdout } = await execFileP("git", ["diff", "--cached", "--name-only"], { cwd });
     if (stdout.trim().length === 0) return;
     await execFileP("git", [
       "-c", "user.email=uh-team@example.com",
@@ -382,18 +518,284 @@ export const defaultGitOps: GitOps = {
       "commit", "-m", message,
     ], { cwd });
   },
+  async dirtyPaths(cwd) {
+    // `--porcelain` keeps the output stable across git versions and locales.
+    // Untracked files are included so a worker that only created new files is
+    // still seen as having produced work.
+    const { stdout } = await execFileP("git", ["status", "--porcelain", "--untracked-files=all"], { cwd });
+    return stdout
+      .split("\n")
+      .map((line) => line.replace(/\r$/, ""))
+      .filter((line) => line.length > 3)
+      // `<XY> <path>`; a rename/copy is rendered as `<old> -> <new>`, so keep
+      // the destination path.
+      .map((line) => line.slice(3))
+      .map((entry) => (entry.includes(" -> ") ? entry.slice(entry.lastIndexOf(" -> ") + 4) : entry))
+      .map((entry) => entry.replace(/^"(.*)"$/, "$1"))
+      .map((entry) => entry.trim())
+      .filter((entry) => entry.length > 0);
+  },
 };
 
 /* -------------------------------------------------------------------------- */
 /* Run                                                                        */
 /* -------------------------------------------------------------------------- */
 
+let canonicalParentWriteChain = Promise.resolve();
+
+function queueCanonicalParentWrite<T>(operation: () => Promise<T>): Promise<T> {
+  const next = canonicalParentWriteChain.then(operation, operation);
+  canonicalParentWriteChain = next.then(() => undefined, () => undefined);
+  return next;
+}
+
+function parentRunDir(canonicalMissionDir: string, runId: string): string {
+  return path.join(canonicalMissionDir, "runs", runId);
+}
+
+function parentTeamStatePath(canonicalMissionDir: string, runId: string): string {
+  return path.join(parentRunDir(canonicalMissionDir, runId), "team-state.json");
+}
+
+function workerArtifactRoot(teamRoot: string, workerId: string, parentRunId: string): string {
+  return path.join(teamRoot, "artifacts", parentRunId, "workers", workerId);
+}
+
+type WorkerContract = NonNullable<CanonicalTeamWorker["contract"]>;
+
+function objectRecord(value: unknown): Record<string, unknown> {
+  return value && typeof value === "object" && !Array.isArray(value)
+    ? value as Record<string, unknown>
+    : {};
+}
+
+function resolveWorkerContract(
+  canonicalPacket: Record<string, unknown>,
+  spec: TeamWorkerSpec,
+  basePacket: Record<string, unknown> = canonicalPacket,
+): WorkerContract {
+  const baseObjective = typeof basePacket.objective === "string" ? basePacket.objective : "";
+  const parentObjective = typeof canonicalPacket.objective === "string" ? canonicalPacket.objective : "";
+  const objective = spec.objective !== undefined
+    ? [spec.objective, basePacket === canonicalPacket
+      ? (parentObjective ? `Team objective: ${parentObjective}` : "")
+      : (baseObjective ? `Worker mission objective: ${baseObjective}` : "")].filter(Boolean).join("\n\n")
+    : baseObjective;
+  const baseOverrides = objectRecord(basePacket.runtime_config_overrides);
+  const parentOverrides = objectRecord(canonicalPacket.runtime_config_overrides);
+  const workerOverrides = spec.runtime_config_overrides ?? {};
+  const runtimeConfigOverrides = { ...parentOverrides, ...baseOverrides, ...workerOverrides };
+  if (spec.limits) {
+    runtimeConfigOverrides.limits = {
+      ...objectRecord(parentOverrides.limits),
+      ...objectRecord(baseOverrides.limits),
+      ...spec.limits,
+    };
+  }
+  const expectedOutputs = spec.expected_outputs ?? (
+    basePacket.expected_outputs && typeof basePacket.expected_outputs === "object"
+      ? basePacket.expected_outputs as WorkerContract["expected_outputs"]
+      : undefined
+  );
+  const constraints = Array.isArray(basePacket.constraints)
+    ? basePacket.constraints.filter((item): item is string => typeof item === "string")
+    : undefined;
+  return {
+    ...(objective ? { objective } : {}),
+    ...(constraints && constraints.length > 0 ? { constraints } : {}),
+    ...(Object.keys(runtimeConfigOverrides).length > 0 ? { runtime_config_overrides: runtimeConfigOverrides } : {}),
+    ...(spec.limits ? { limits: spec.limits } : {}),
+    ...(expectedOutputs ? { expected_outputs: expectedOutputs } : {}),
+    ...(spec.seed !== undefined ? { seed: spec.seed } : {}),
+  };
+}
+
+function deriveWorkerPacket(
+  canonicalPacket: Record<string, unknown>,
+  contract: WorkerContract,
+): Record<string, unknown> {
+  const packet: Record<string, unknown> = { ...canonicalPacket };
+  if (contract.objective !== undefined) packet.objective = contract.objective;
+  if (contract.constraints !== undefined) packet.constraints = contract.constraints;
+  if (contract.runtime_config_overrides !== undefined) {
+    packet.runtime_config_overrides = contract.runtime_config_overrides;
+  }
+  if (contract.expected_outputs !== undefined) {
+    packet.expected_outputs = contract.expected_outputs;
+  }
+  if (contract.seed !== undefined) {
+    const constraints = Array.isArray(packet.constraints) ? [...packet.constraints] : [];
+    constraints.push(`Seed: ${contract.seed}. Use it for every randomized step and print it in your final message.`);
+    packet.constraints = constraints;
+  }
+  return packet;
+}
+
+async function writeDerivedMissionPacket(
+  canonicalBytes: string,
+  worktreePath: string,
+  missionId: string,
+  contract: WorkerContract,
+): Promise<string> {
+  const canonicalPacket = parse(canonicalBytes) as Record<string, unknown>;
+  const derivedBytes = stringify(deriveWorkerPacket(canonicalPacket, contract));
+  const target = path.join(worktreePath, ".harness", "missions", missionId);
+  await mkdir(target, { recursive: true });
+  await writeFile(path.join(target, "mission.yaml"), derivedBytes, "utf-8");
+  return derivedBytes;
+}
+
+async function seedCanonicalWorkerScope(
+  canonicalMissionDir: string,
+  artifactRoot: string,
+  missionId: string,
+  missionYamlContent?: string,
+): Promise<void> {
+  const target = path.join(artifactRoot, ".harness", "missions", missionId);
+  await mkdir(target, { recursive: true });
+  const missionYaml = path.join(canonicalMissionDir, "mission.yaml");
+  if (missionYamlContent !== undefined) {
+    await writeFile(path.join(target, "mission.yaml"), missionYamlContent, "utf-8");
+  } else if (await fileExists(missionYaml)) {
+    await writeFile(path.join(target, "mission.yaml"), await readFile(missionYaml, "utf-8"), "utf-8");
+  }
+}
+
+async function writeCanonicalTeamState(
+  canonicalMissionDir: string,
+  teamRoot: string,
+  state: CanonicalTeamState,
+): Promise<void> {
+  CanonicalTeamStateSchema.parse(state);
+  await mkdir(parentRunDir(canonicalMissionDir, state.run_id), { recursive: true });
+  await writeFile(parentTeamStatePath(canonicalMissionDir, state.run_id), JSON.stringify(state, null, 2), "utf-8");
+  void teamRoot;
+}
+
+async function readCanonicalRuntimeResult(
+  artifactRoot: string,
+  missionId: string,
+  runId: string,
+): Promise<RuntimeResultDocument | undefined> {
+  const resultPath = path.join(artifactRoot, ".harness", "missions", missionId, "runs", runId, "runtime-result.yaml");
+  try {
+    return RuntimeResultSchema.parse(parse(await readFile(resultPath, "utf-8")));
+  } catch {
+    return undefined;
+  }
+}
+
+function runtimeStatusForTeam(status: CanonicalTeamStatus): RuntimeResultStatus {
+  if (status === "passed" || status === "passed_partial") return "passed";
+  if (status === "blocked") return "blocked";
+  return "failed";
+}
+
+function runStatusForTeam(status: CanonicalTeamStatus): "running" | "passed" | "failed" | "blocked" {
+  if (status === "running") return "running";
+  if (status === "passed" || status === "passed_partial") return "passed";
+  if (status === "blocked") return "blocked";
+  return "failed";
+}
+
+
+async function readCanonicalSentinel(
+  artifactRoot: string,
+  missionId: string,
+  runId: string,
+): Promise<string> {
+  try {
+    return await readFile(
+      path.join(artifactRoot, ".harness", "missions", missionId, "runs", runId, "runtime-final.txt"),
+      "utf-8",
+    );
+  } catch {
+    return "";
+  }
+}
+
+async function persistCanonicalParentProjection(
+  root: string,
+  canonicalMissionDir: string,
+  verification: VerifyMissionLike | null,
+  state: CanonicalTeamState,
+  contexts: TeamRuntimeContext[],
+): Promise<string | null> {
+  const finishedAt = state.finished_at ?? new Date().toISOString();
+  const accounting = await Promise.all(contexts.map(context => readRuntimeAccounting(context.artifactRoot, context.missionId ?? state.mission_id, [context.runId])));
+  const aggregate = aggregateRuntimeUsage(accounting.map(item => item.facts));
+  const runDir = parentRunDir(canonicalMissionDir, state.run_id);
+  const relativeState = relativeArtifactPath(root, parentTeamStatePath(canonicalMissionDir, state.run_id));
+  const runtimeResult: RuntimeResultDocument = {
+    schema_version: "uh.runtime-result.v0",
+    mission_id: state.mission_id,
+    runtime: "ultimate-harness-team",
+    status: runtimeStatusForTeam(state.status),
+    started_at: state.started_at,
+    finished_at: finishedAt,
+    exit_code: runtimeStatusForTeam(state.status) === "passed" ? 0 : 1,
+    prompt_path: relativeState,
+    stdout_path: relativeState,
+    stderr_path: relativeState,
+    diff_path: relativeArtifactPath(root, path.isAbsolute(state.integration_report_path)
+      ? state.integration_report_path
+      : path.resolve(root, state.integration_report_path)),
+    errors: [],
+    ...(aggregate.provider ? { provider: aggregate.provider } : {}),
+    ...(aggregate.model ? { model: aggregate.model } : {}),
+    ...(aggregate.usage ? { usage: aggregate.usage } : {}),
+    ...(aggregate.cost_usd !== undefined ? { cost_usd: aggregate.cost_usd } : {}),
+    ...(aggregate.cost_basis ? { cost_basis: aggregate.cost_basis } : {}),
+  };
+  await mkdir(runDir, { recursive: true });
+  await writeFile(path.join(runDir, "runtime-result.yaml"), stringify(runtimeResult), "utf-8");
+  let verificationPath: string | null = null;
+  let verificationYaml: string | undefined;
+  if (verification && await fileExists(verification.path)) {
+    verificationYaml = await readFile(verification.path, "utf-8");
+    verificationPath = path.join(runDir, "verification.yaml");
+    await writeFile(verificationPath, verificationYaml, "utf-8");
+  }
+
+  await queueCanonicalParentWrite(async () => {
+    await appendRunsIndexEntry(root, state.mission_id, {
+      run_id: state.run_id,
+      started_at: state.started_at,
+      finished_at: finishedAt,
+      status: runStatusForTeam(state.status),
+      runtime: "ultimate-harness-team",
+    });
+    const current = await readLatestPointer(root, state.mission_id);
+    const currentStarted = current ? Date.parse(current.started_at) : Number.NaN;
+    const selected = !current || current.run_id === state.run_id || !Number.isFinite(currentStarted)
+      || currentStarted <= Date.parse(state.started_at);
+    if (!selected) return;
+    await writeFile(path.join(canonicalMissionDir, "runtime-result.yaml"), stringify(runtimeResult), "utf-8");
+    if (verificationYaml !== undefined) {
+      await writeFile(path.join(canonicalMissionDir, "verification.yaml"), verificationYaml, "utf-8");
+    }
+    await writeLatestPointer(root, state.mission_id, {
+      schema_version: "uh.latest-run.v0",
+      run_id: state.run_id,
+      started_at: state.started_at,
+      finished_at: finishedAt,
+      status: runStatusForTeam(state.status),
+    });
+  });
+  return verificationPath;
+}
+
 export async function runTeamMission(
   mission: TeamMission,
   root: string,
   options: RunTeamMissionOptions,
 ): Promise<TeamRunResult> {
   const plan = planTeamRun(mission, root, { strategy: options.strategy });
+  workerConcurrency(plan.workers.length, mission.team.resources);
+  const workerMemory = mission.team.resources?.worker_memory_mb;
+  if (workerMemory && (process.platform !== "win32" || plan.workers.some(worker => !["oh-my-pi", "command-code", "claude-code"].includes(worker.adapter)))) {
+    throw new Error("A worker memory cap requires the native Windows Job runner (oh-my-pi, command-code, or claude-code); refusing unenforced execution");
+  }
   const gitOps = options.gitOps ?? defaultGitOps;
   const baseRef = options.baseRef ?? "HEAD";
 
@@ -402,7 +804,96 @@ export async function runTeamMission(
   if (!(await fileExists(missionPath))) {
     throw new Error(`Team mission packet not found at ${missionPath}; create the mission before run-team.`);
   }
-  await mkdir(plan.teamRoot, { recursive: true });
+  // The canonical packet on disk is the single source of truth for workers.
+  const canonicalBytes = await readFile(missionPath, "utf-8");
+  const canonicalPacket = parse(canonicalBytes) as Record<string, unknown>;
+  const workerMissionPackets = new Map<string, { id: string; bytes: string; packet: Record<string, unknown> }>();
+  for (const worker of plan.workers) {
+    const missionId = worker.spec?.mission_id;
+    if (!missionId) continue;
+    assertSafeMissionId(missionId);
+    const resolvedPath = assertWithinRoot(
+      path.join(root, ".harness", "missions", missionId, "mission.yaml"),
+      root,
+      "worker mission",
+    );
+    if (!(await fileExists(resolvedPath))) {
+      throw new Error(`Worker mission packet not found at ${resolvedPath}`);
+    }
+    await loadMissionFile(resolvedPath);
+    const bytes = await readFile(resolvedPath, "utf-8");
+    workerMissionPackets.set(worker.id, { id: missionId, bytes, packet: parse(bytes) as Record<string, unknown> });
+  }
+  const parentRunId = generateRunId();
+  const startedAt = new Date().toISOString();
+  const workerContexts = new Map<string, TeamRuntimeContext>();
+  const canonicalState: CanonicalTeamState = {
+    schema_version: "uh.team-run.v0",
+    mission_id: mission.id,
+    run_id: parentRunId,
+    status: "running",
+    started_at: startedAt,
+    finished_at: null,
+    integration_report_path: relativeArtifactPath(root, plan.integrationReportPath),
+    verification_status: null,
+    leader: { role: mission.team.leader.role ?? "integrator", adapter: plan.leader.adapter, status: "queued" },
+    workers: plan.workers.map((worker) => {
+      const runId = generateRunId();
+      const artifactRoot = workerArtifactRoot(plan.teamRoot, worker.id, parentRunId);
+      const workerSpec = worker.spec ?? { role: worker.role, adapter: worker.adapter as TeamWorker["adapter"] };
+      const workerMission = workerMissionPackets.get(worker.id);
+      const contract = resolveWorkerContract(canonicalPacket, workerSpec, workerMission?.packet);
+      const limits = {
+        ...(workerSpec.limits ?? {}),
+        ...(workerMemory ? { memory_mb: workerMemory } : {}),
+      };
+      workerContexts.set(worker.id, {
+        artifactRoot,
+        runId,
+        ...(workerMission ? { missionId: workerMission.id } : {}),
+        ...(Object.keys(limits).length > 0 ? { limits } : {}),
+      });
+      return {
+        id: worker.id,
+        role: worker.role,
+        ...(workerMission ? { mission_id: workerMission.id } : {}),
+        adapter: worker.adapter,
+        run_id: runId,
+        artifact_scope: relativeArtifactPath(plan.teamRoot, artifactRoot),
+        runtime_result_path: null,
+        status: "queued",
+        completion: "complete",
+        started_at: startedAt,
+        finished_at: null,
+        contract,
+      };
+    }),
+  };
+  let stateWrite = Promise.resolve();
+  const persistState = async (): Promise<void> => {
+    stateWrite = stateWrite.then(() => writeCanonicalTeamState(canonicalMissionDir, plan.teamRoot, canonicalState));
+    await stateWrite;
+  };
+  await persistState();
+  await queueCanonicalParentWrite(async () => {
+    await appendRunsIndexEntry(root, mission.id, {
+      run_id: parentRunId,
+      started_at: startedAt,
+      status: "running",
+      runtime: "ultimate-harness-team",
+    });
+    const current = await readLatestPointer(root, mission.id);
+    const currentStarted = current ? Date.parse(current.started_at) : Number.NaN;
+    if (!current || current.run_id === parentRunId || !Number.isFinite(currentStarted)
+      || currentStarted <= Date.parse(startedAt)) {
+      await writeLatestPointer(root, mission.id, {
+        schema_version: "uh.latest-run.v0",
+        run_id: parentRunId,
+        started_at: startedAt,
+        status: "running",
+      });
+    }
+  });
 
   // ------------------------------------------------------------------ workers
   // Worktree creation goes through `git worktree add`, which writes to the
@@ -410,42 +901,158 @@ export async function runTeamMission(
   // internally, but to keep the failure mode deterministic across CI runners
   // we serialize at the JS layer. Spawning the workers themselves runs in
   // parallel — that's where the wall-clock win is.
-  const workerSetup: Array<{ plan: WorkerPlan; setupError?: Error }> = [];
-  for (const wp of plan.workers) {
-    try {
+  let setupQueue = Promise.resolve();
+  const launchedWorkers = new Set<string>();
+  const workerOutcomes: WorkerOutcome[] = await mapResourceWaves(plan.workers, mission.team.resources ?? {}, async (wp): Promise<WorkerOutcome> => {
+    const slot: { plan: WorkerPlan; setupError?: Error } = { plan: wp };
+    const setup = setupQueue.then(async () => {
+      const context = workerContexts.get(wp.id)!;
+      const workerMission = workerMissionPackets.get(wp.id);
+      const workerMissionId = workerMission?.id ?? mission.id;
+      await seedCanonicalWorkerScope(canonicalMissionDir, context.artifactRoot, mission.id);
       await gitOps.addWorktree(root, wp.branch, wp.worktreePath, baseRef);
       await seedMissionPacket(canonicalMissionDir, wp.worktreePath, mission.id);
+      const workerSpec = wp.spec ?? { role: wp.role, adapter: wp.adapter as TeamWorker["adapter"] };
+      const contract = resolveWorkerContract(canonicalPacket, workerSpec, workerMission?.packet);
+      const sourceBytes = workerMission?.bytes ?? canonicalBytes;
+      const derivedBytes = await writeDerivedMissionPacket(sourceBytes, wp.worktreePath, workerMissionId, contract);
+      if (workerMission) {
+        await seedCanonicalWorkerScope(canonicalMissionDir, context.artifactRoot, workerMissionId, derivedBytes);
+      } else {
+        await seedCanonicalWorkerScope(canonicalMissionDir, context.artifactRoot, mission.id, derivedBytes);
+      }
       await writeWorkerArtifactGitignore(wp.worktreePath);
-      workerSetup.push({ plan: wp });
-    } catch (err) {
-      workerSetup.push({ plan: wp, setupError: err instanceof Error ? err : new Error(String(err)) });
-    }
-  }
-
-  const workerOutcomes: WorkerOutcome[] = await Promise.all(workerSetup.map(async (slot) => {
+    });
+    setupQueue = setup.then(() => undefined, () => undefined);
+    try { await setup; }
+    catch (error) { slot.setupError = error instanceof Error ? error : new Error(String(error)); }
+    const context = workerContexts.get(slot.plan.id)!;
+    const canonicalWorker = canonicalState.workers.find((worker) => worker.id === slot.plan.id)!;
     if (slot.setupError) {
+      canonicalWorker.status = "error";
+      canonicalWorker.finished_at = new Date().toISOString();
+      await persistState();
       return {
         plan: slot.plan,
         exitCode: 1,
-        status: "error",
+        status: "error" as const,
         errorMessage: `worktree setup failed: ${slot.setupError.message}`,
         filesTouched: [],
         finalSentinel: "",
         merge: null,
         integrated: false,
+        runId: context.runId,
+        artifactScope: canonicalWorker.artifact_scope,
       };
     }
-    const runner = options.runnerFor(slot.plan.adapter);
-    const workerMissionPath = path.join(slot.plan.worktreePath, ".harness", "missions", mission.id, "mission.yaml");
+    const workerMissionId = canonicalWorker.mission_id ?? mission.id;
+    const workerMissionPath = path.join(slot.plan.worktreePath, ".harness", "missions", workerMissionId, "mission.yaml");
     try {
-      const res = await runner(slot.plan.adapter, slot.plan.worktreePath, workerMissionPath);
-      // Read + strip per-worker session artifacts BEFORE staging the diff so
-      // they never reach the worker branch — otherwise every worker would
-      // commit `.harness/missions/<id>/runtime-final.txt` and the leader's
-      // merge would conflict on a file none of the workers actually own.
-      const finalSentinel = await readSentinel(slot.plan.worktreePath, mission.id);
-      await stripWorkerSessionArtifacts(slot.plan.worktreePath, mission.id);
-      const status = classifyRuntimeStatus(res);
+      const runner = options.runnerFor(slot.plan.adapter);
+      canonicalWorker.status = "running";
+      canonicalWorker.started_at = new Date().toISOString();
+      await persistState();
+      context.onAttempt = async (runId) => {
+        context.runId = runId;
+        canonicalWorker.run_id = runId;
+        // Register the worker at the PROJECT root so `uh ps` finds it from
+        // outside the team tree. Team identity comes straight from the plan,
+        // not from path parsing, so it is exact.
+        const overrides = canonicalWorker.contract?.runtime_config_overrides;
+        const model = overrides !== undefined && typeof overrides.model === "string" ? overrides.model : undefined;
+        try {
+          await registerLiveRun({
+            projectRoot: root,
+            artifactRoot: context.artifactRoot,
+            runId,
+            missionId: workerMissionId,
+            runtime: slot.plan.adapter,
+            ...(model !== undefined ? { model } : {}),
+            team: { mission_id: mission.id, role: slot.plan.role },
+          });
+        } catch {
+          // The registry is best-effort; a worker must not fail because of it.
+        }
+        await persistState();
+      };
+      launchedWorkers.add(slot.plan.id);
+      let res: TeamRuntimeRunResult;
+      try {
+        res = await runner(slot.plan.adapter, slot.plan.worktreePath, workerMissionPath, context);
+      } finally {
+        await writeFile(workerMissionPath, workerMissionPackets.get(slot.plan.id)?.bytes ?? canonicalBytes, "utf-8");
+      }
+      const runtimeResult = await (async () => {
+        // End-of-run consistency: the runtime-control receipt is the
+        // confirmed settlement. A runtime result that contradicts it gets a
+        // `settlement_conflict` record and the confirmed settlement is
+        // preferred before the status decision reads it. Best-effort: a
+        // reconciliation failure must not fail the worker.
+        await reconcileRuntimeResultControl(context.artifactRoot, workerMissionId, context.runId).catch(() => undefined);
+        return readCanonicalRuntimeResult(context.artifactRoot, workerMissionId, context.runId);
+      })();
+      const finalSentinel = (await readCanonicalSentinel(context.artifactRoot, workerMissionId, context.runId))
+        || await readSentinel(slot.plan.worktreePath, workerMissionId);
+      await stripWorkerSessionArtifacts(slot.plan.worktreePath, workerMissionId);
+      canonicalWorker.completion = runtimeResult?.completion ?? res.result?.completion ?? "complete";
+      // The reconciled, on-disk runtime result is the authoritative verdict
+      // when one was written; the adapter's in-memory copy is the fallback.
+      let status = classifyRuntimeStatus({ ...res, result: runtimeResult ?? res.result });
+      // A settled worker whose runtime exited non-zero after the settlement
+      // did its work; the exit is a post-run artifact, not a worker failure.
+      const postRunWarning = status === "succeeded" && res.exitCode !== 0
+        ? `Runtime exited with code ${res.exitCode} after a settled pass; treated as succeeded`
+        : undefined;
+      const expectedOutputs = canonicalWorker.contract?.expected_outputs ?? slot.plan.spec?.expected_outputs;
+      if (status === "succeeded" && expectedOutputs) {
+        const outputs = await Promise.all(expectedOutputs.files.map(async (outputPath) => {
+          const check = await verifyExpectedArtifact(slot.plan.worktreePath, { path: outputPath });
+          return {
+            path: outputPath,
+            status: check.status === "passed" ? "passed" as const : "failed" as const,
+            ...(check.notes ? { notes: check.notes } : {}),
+          };
+        }));
+        canonicalWorker.outputs = outputs;
+        const failure = outputs.find((output) => output.status === "failed");
+        if (failure) {
+          status = "blocked";
+          canonicalWorker.blocked_reason = `Declared output ${failure.path}: ${failure.notes ?? "verification failed"}`;
+        }
+      }
+      canonicalWorker.status = status === "succeeded"
+        ? "succeeded"
+        : status === "blocked"
+          ? "blocked"
+          : status === "failed"
+            ? "failed"
+            : "error";
+      canonicalWorker.finished_at = new Date().toISOString();
+      canonicalWorker.runtime_result_path = runtimeResult
+        ? relativeArtifactPath(root, path.join(context.artifactRoot, ".harness", "missions", workerMissionId, "runs", context.runId, "runtime-result.yaml"))
+        : null;
+      // A failed worker may still hold a complete change: salvage evaluates and
+      // (only when both pass) commits it, but the leader never merges it.
+      let salvageStopCode: string | undefined;
+      let salvageRecord: WorkerSalvage | undefined;
+      if (status === "failed") {
+        const salvageOutputs = canonicalWorker.contract?.expected_outputs ?? slot.plan.spec?.expected_outputs;
+        const evaluated = await evaluateWorkerSalvage({
+          gitOps,
+          verifier: options.verifier,
+          worktreePath: slot.plan.worktreePath,
+          branch: slot.plan.branch,
+          workerId: slot.plan.id,
+          workerMissionId,
+          artifactRoot: context.artifactRoot,
+          runId: context.runId,
+          expectedOutputs: salvageOutputs?.files,
+        });
+        salvageStopCode = evaluated.stopCode;
+        salvageRecord = evaluated.record;
+        if (salvageRecord) canonicalWorker.salvage = salvageRecord;
+      }
+      await persistState();
       let commitErr: string | null = null;
       if (status === "succeeded") {
         try {
@@ -458,31 +1065,63 @@ export async function runTeamMission(
         plan: slot.plan,
         exitCode: res.exitCode,
         status,
-        errorMessage: commitErr ?? undefined,
+        errorMessage: commitErr ?? canonicalWorker.blocked_reason,
         filesTouched: [],
         finalSentinel,
         merge: null,
         integrated: false,
+        runId: context.runId,
+        artifactScope: canonicalWorker.artifact_scope,
+        runtimeResult,
+        ...(postRunWarning !== undefined ? { postRunWarning } : {}),
+        ...(salvageStopCode !== undefined ? { stopCode: salvageStopCode } : {}),
+        ...(salvageRecord ? { salvage: salvageRecord } : {}),
       };
     } catch (err) {
+      canonicalWorker.status = "error";
+      canonicalWorker.finished_at = new Date().toISOString();
+      await persistState();
       return {
         plan: slot.plan,
         exitCode: 1,
-        status: "error",
+        status: "error" as const,
         errorMessage: err instanceof Error ? err.message : String(err),
         filesTouched: [],
         finalSentinel: "",
         merge: null,
         integrated: false,
+        runId: context.runId,
+        artifactScope: canonicalWorker.artifact_scope,
       };
     }
-  }));
+  }, {
+    costOf: async (_outcome, worker) => {
+      if (!launchedWorkers.has(worker.id)) return 0;
+      const context = workerContexts.get(worker.id)!;
+      return (await readRuntimeAccounting(context.artifactRoot, mission.id, [context.runId])).facts.cost_usd;
+    },
+    blocked: async (worker, reason) => {
+      const context = workerContexts.get(worker.id)!;
+      const canonicalWorker = canonicalState.workers.find(item => item.id === worker.id)!;
+      canonicalState.admission_blocked_reason = reason;
+      canonicalWorker.status = "blocked";
+      canonicalWorker.finished_at = new Date().toISOString();
+      await persistState();
+      return { plan: worker, exitCode: 1, status: "blocked", errorMessage: reason, filesTouched: [],
+        finalSentinel: "", merge: null, integrated: false, runId: context.runId, artifactScope: canonicalWorker.artifact_scope };
+    },
+  });
 
   // ------------------------------------------------------------------- leader
+  canonicalState.leader.status = "integrating";
+  await persistState();
   const leaderError = await safeAddWorktree(gitOps, root, plan.leader, baseRef);
   const leaderReady = leaderError === null;
   if (leaderReady) {
     await seedMissionPacket(canonicalMissionDir, plan.leader.worktreePath, mission.id);
+  } else {
+    canonicalState.leader.status = "failed";
+    await persistState();
   }
 
   // Collect files touched per worker (vs base). Done after worker commits so
@@ -568,12 +1207,35 @@ export async function runTeamMission(
     if (!leaderReady) return "failed";
     if (verificationFailed) return "failed";
     if (verification && verification.status === "failed") return "failed";
+    if (canonicalState.admission_blocked_reason) return "blocked";
     if (verification && verification.status === "passed") {
       if (!hadConflicts) return "passed";
       return anyWorkerIntegrated ? "passed_partial" : "blocked";
     }
     return "blocked";
   })();
+  canonicalState.status = overallStatus;
+  canonicalState.finished_at = new Date().toISOString();
+  canonicalState.integration_report_path = relativeArtifactPath(root, reportPath);
+  canonicalState.verification_status = verification?.status ?? (verificationFailed ? "failed" : null);
+  canonicalState.leader.status = !leaderReady
+    ? "failed"
+    : overallStatus === "passed" || overallStatus === "passed_partial"
+      ? "succeeded"
+      : overallStatus === "blocked"
+        ? "blocked"
+        : "failed";
+  await persistState();
+  const verificationPath = await persistCanonicalParentProjection(
+    root,
+    canonicalMissionDir,
+    verification,
+    canonicalState,
+    canonicalState.workers.filter(worker => launchedWorkers.has(worker.id)).map(worker => workerContexts.get(worker.id)!),
+  );
+  if (verification && verificationPath) {
+    verification = { ...verification, path: verificationPath };
+  }
 
   // ----------------------------------------------------------------- cleanup
   const retained = options.retainOnSuccess === true || overallStatus !== "passed";
@@ -596,6 +1258,7 @@ export async function runTeamMission(
     status: overallStatus,
     hadConflicts,
     retained,
+    runId: parentRunId,
   };
 }
 
@@ -611,9 +1274,77 @@ async function safeAddWorktree(gitOps: GitOps, root: string, leader: LeaderPlan,
 function classifyRuntimeStatus(res: TeamRuntimeRunResult): WorkerOutcome["status"] {
   if (res.result?.status === "blocked") return "blocked";
   if (res.exitCode === 0) return "succeeded";
+  // A worker whose runtime-result block settled as `passed` did its work: a
+  // non-zero exit observed after that settlement is a post-run artifact (a
+  // diff capture failure, launcher teardown), never a worker failure.
+  if (res.result?.status === "passed") return "succeeded";
   return "failed";
 }
 
+/**
+ * Decide whether a worker that settled as `failed` left salvageable work, and
+ * if so, verify it in place.
+ *
+ * A worker is only considered when its stop code means it ran out of budget or
+ * was halted by safety (`turn_limit`, `timeout`, `deadline`, `stall`, `policy`)
+ * AND its worktree holds changes outside the protected roots. Its own declared
+ * outputs are re-checked with the output verification, and the worker mission's
+ * `verification.required_checks` are run in the worker worktree through the same
+ * verifier the leader uses. The worktree is committed to the worker branch — with
+ * the existing commit hygiene — only when both passed. The record is always
+ * surfaced so an operator can take it deliberately; the leader never merges it.
+ */
+async function evaluateWorkerSalvage(args: {
+  gitOps: GitOps;
+  verifier: TeamVerifier | undefined;
+  worktreePath: string;
+  branch: string;
+  workerId: string;
+  workerMissionId: string;
+  artifactRoot: string;
+  runId: string;
+  expectedOutputs: readonly string[] | undefined;
+}): Promise<{ stopCode?: string; record?: WorkerSalvage }> {
+  const stopCode = await readWorkerStopCode(args.artifactRoot, args.workerMissionId, args.runId);
+  if (stopCode === undefined || !SALVAGE_STOP_CODES.has(stopCode)) return { stopCode };
+  // Without a way to inspect the worktree we cannot tell salvageable work from
+  // harness-owned churn, so we record nothing rather than guess.
+  if (!args.gitOps.dirtyPaths) return { stopCode };
+  let dirty: string[];
+  try {
+    dirty = await args.gitOps.dirtyPaths(args.worktreePath);
+  } catch {
+    return { stopCode };
+  }
+  const eligible = dirty.some((entry) => !isProtectedPath(entry, DEFAULT_PROTECTED_PATHS));
+  let outputsPassed = false;
+  let checksPassed = false;
+  if (eligible) {
+    outputsPassed = true;
+    for (const outputPath of args.expectedOutputs ?? []) {
+      const check = await verifyExpectedArtifact(args.worktreePath, { path: outputPath });
+      if (check.status !== "passed") { outputsPassed = false; break; }
+    }
+    if (args.verifier) {
+      try {
+        const verification = await args.verifier(args.worktreePath, args.workerMissionId);
+        checksPassed = verification.status === "passed";
+      } catch {
+        checksPassed = false;
+      }
+    }
+    if (outputsPassed && checksPassed) {
+      try {
+        await args.gitOps.commitAll(args.worktreePath, `team(${args.workerId}): salvaged worker run`);
+      } catch { /* best-effort: the record still points at the branch for a human */ }
+    }
+  }
+  return {
+    stopCode,
+    record: { eligible, outputs_passed: outputsPassed, checks_passed: checksPassed, branch: args.branch },
+  };
+}
+
 async function seedMissionPacket(canonicalMissionDir: string, worktreePath: string, missionId: string): Promise<void> {
   const target = path.join(worktreePath, ".harness", "missions", missionId);
   // When the worktree was branched off a ref that pre-dates the mission, the
@@ -756,10 +1487,20 @@ async function writeIntegrationReport(args: WriteReportArgs): Promise<string> {
     lines.push("");
     lines.push(`- Branch: \`${outcome.plan.branch}\``);
     lines.push(`- Status: ${outcome.status}${outcome.errorMessage ? ` (${outcome.errorMessage})` : ""}`);
+    if (outcome.postRunWarning) lines.push(`- Warning: ${outcome.postRunWarning}`);
+    if (outcome.runId) lines.push(`- Canonical run: \`${outcome.runId}\` (${outcome.artifactScope ?? "worker scope"})`);
     lines.push(`- Files touched: ${outcome.filesTouched.length}`);
     if (outcome.filesTouched.length > 0) {
       for (const p of outcome.filesTouched) lines.push(`  - \`${p}\``);
     }
+    // A worker that did not succeed always renders why — the worker's own
+    // error message first, the runtime result's errors as the fallback — so
+    // a "failed with no reason" report cannot happen.
+    if (outcome.status !== "succeeded") {
+      const reason = outcome.errorMessage
+        ?? (outcome.runtimeResult?.errors ?? []).map((entry) => entry.trim()).filter(Boolean).join("; ");
+      lines.push(`- Failure reason: ${reason.length > 0 ? reason : "no reason recorded"}`);
+    }
     if (outcome.merge) {
       // Codex P2: the report verdict must distinguish three states —
       // clean, conflict, and non-conflict failure — so operators don't
@@ -781,6 +1522,27 @@ async function writeIntegrationReport(args: WriteReportArgs): Promise<string> {
     lines.push(`- Summary: ${oneLineSummary(outcome.finalSentinel)}`);
     lines.push("");
   }
+  // Stopped-but-verified work: a failed worker whose stop code permitted
+  // salvage and whose worktree held non-protected changes. The leader never
+  // merges these automatically — the section exists so a human can take the
+  // branch deliberately (a policy stop always requires a human).
+  const salvaged = args.workers.filter((outcome) => outcome.salvage?.eligible === true);
+  lines.push("## Verified work from stopped workers");
+  lines.push("");
+  if (salvaged.length === 0) {
+    lines.push("_(none)_");
+    lines.push("");
+  } else {
+    for (const outcome of salvaged) {
+      const salvage = outcome.salvage!;
+      const stop = outcome.stopCode ? `\`${outcome.stopCode}\`` : "_unknown_";
+      const verdict = salvage.outputs_passed && salvage.checks_passed ? "committed" : "not committed";
+      lines.push(`- \`${outcome.plan.id}\` — stop ${stop}, branch \`${salvage.branch}\`, outputs \`${salvage.outputs_passed ? "passed" : "failed"}\`, checks \`${salvage.checks_passed ? "passed" : "failed"}\` (${verdict})`);
+    }
+    lines.push("");
+    lines.push("> Not merged: the leader never integrates a failed worker automatically. Take this branch deliberately.");
+    lines.push("");
+  }
   const report = lines.join("\n");
   await writeFile(args.integrationReportPath, report, "utf-8");
   return args.integrationReportPath;
diff --git a/src/harness/telemetry-beacon.ts b/src/harness/telemetry-beacon.ts
index 4717de5..74591c3 100644
--- a/src/harness/telemetry-beacon.ts
+++ b/src/harness/telemetry-beacon.ts
@@ -47,10 +47,16 @@ async function main(): Promise<void> {
     return;
   }
   if (parsed.protocol !== "https:" && parsed.protocol !== "http:") return;
-  if (refused(parsed.hostname)) return;
+  const lookupHost = parsed.hostname.replace(/^\[|\]$/g, "");
+  if (refused(lookupHost)) return;
+  const timeoutMs = Number(process.env.UH_BEACON_TIMEOUT_MS) || 2000;
   try {
     const dns = await import("node:dns");
-    const records = await dns.promises.lookup(parsed.hostname, { all: true });
+    const lookupPromise = dns.promises.lookup(lookupHost, { all: true });
+    const records = await Promise.race([
+      lookupPromise,
+      new Promise<never>((_, reject) => setTimeout(() => reject(new Error("DNS timeout")), timeoutMs)),
+    ]);
     if (records.length === 0) return;
     if (records.some((record) => refused(record.address))) return;
   } catch {
@@ -58,7 +64,6 @@ async function main(): Promise<void> {
   }
 
   const controller = new AbortController();
-  const timeoutMs = Number(process.env.UH_BEACON_TIMEOUT_MS) || 2000;
   const timer = setTimeout(() => controller.abort(), timeoutMs);
   try {
     await fetch(parsed, {
diff --git a/src/harness/telemetry.ts b/src/harness/telemetry.ts
index 4689884..1a8335e 100644
--- a/src/harness/telemetry.ts
+++ b/src/harness/telemetry.ts
@@ -125,9 +125,14 @@ async function resolveCaptureEndpoint(
     return null;
   }
   if (url.protocol !== "https:" && url.protocol !== "http:") return null;
-  if (isRefusedCaptureHost(url.hostname)) return null;
+  const lookupHost = url.hostname.replace(/^\[|\]$/g, "");
+  if (isRefusedCaptureHost(lookupHost)) return null;
   try {
-    const records = await lookupImpl(url.hostname, { all: true });
+    const lookupPromise = lookupImpl(lookupHost, { all: true });
+    const records = await Promise.race([
+      lookupPromise,
+      new Promise<never>((_, reject) => setTimeout(() => reject(new Error("DNS timeout")), CAPTURE_TIMEOUT_MS)),
+    ]);
     if (records.length === 0) return null;
     if (records.some((record) => isRefusedCaptureAddress(record.address))) return null;
   } catch {
@@ -194,7 +199,7 @@ function sendBeacon(config: TelemetryConfig, outcome: CommandOutcome): void {
     if (url.protocol !== "https:" && url.protocol !== "http:") return;
     if (isRefusedCaptureHost(url.hostname)) return;
     const body = JSON.stringify(buildCapturePayload(config, outcome));
-    const child = spawn("node", [beaconPath], {
+    const child = spawn(process.execPath, [beaconPath], {
       detached: true,
       shell: false,
       stdio: "ignore",
diff --git a/src/harness/tool-guard.ts b/src/harness/tool-guard.ts
new file mode 100644
index 0000000..88f10ac
--- /dev/null
+++ b/src/harness/tool-guard.ts
@@ -0,0 +1,621 @@
+import path from "node:path";
+import type { ToolGuardPolicy } from "../schema/runtime-control.js";
+import { DEFAULT_PROTECTED_PATHS } from "../schema/runtime-control.js";
+
+export type ToolGuardClass =
+  | "write_outside" | "git_mutation" | "delete_outside" | "kill_or_format"
+  | "package_install" | "network_client" | "agent_client" | "protected_root"
+  | "guard_tamper" | "containment_escape";
+export type ToolGuardDecision = { deny?: { reason: string; class: ToolGuardClass; target?: string } };
+
+const SUFFIX = " Do not retry this by another route; record it in your final message and continue with the rest of the task.";
+export const SHELL_TOOLS = new Set(["bash", "shell", "shell_command", "powershell", "pwsh", "cmd", "run_command"]);
+export const WRITE_TOOLS = new Set(["write_file", "edit_file", "notebook_edit", "multi_edit", "write", "edit", "create_file", "apply_patch", "delete_file", "remove", "move_file"]);
+const DELETE_TOOLS = new Set(["delete_file", "remove"]);
+/** Native tools that start another agent inside the runtime. Judged by tool name only. */
+export const AGENT_TOOLS = new Set(["task", "agent", "subagent", "spawn_agent", "dispatch_agent", "delegate"]);
+const DEL_VERBS = new Set(["remove-item", "ri", "rm", "rmdir", "rd", "del", "erase"]);
+const COPY_VERBS = new Set(["copy", "cp", "move", "mv", "xcopy", "robocopy", "copy-item", "move-item", "cpi", "mi"]);
+const NULL_TARGETS = new Set(["nul", "null", "/dev/null", "$null", "&1", "&2", "con", "prn"]);
+const VALUE_FLAGS = new Set(["-erroraction", "-warningaction", "-filter", "-include", "-exclude", "-encoding", "-confirm", "-ea", "-wa", "-value", "-inputobject", "-variable"]);
+
+function splitSegments(command: string): Array<[string, string]> {
+  const result: Array<[string, string]> = [];
+  let current = "", separator = "", quote = "";
+  for (let i = 0; i < command.length; i += 1) {
+    const ch = command[i];
+    if (quote) {
+      current += ch;
+      if (ch === "\\" && quote === '"' && i + 1 < command.length) current += command[++i];
+      else if (ch === quote) quote = "";
+      continue;
+    }
+    if (ch === "'" || ch === '"') { quote = ch; current += ch; continue; }
+    const two = command.slice(i, i + 2);
+    if (two === "&&" || two === "||") { result.push([current, separator]); current = ""; separator = two; i += 1; continue; }
+    if (["|", ";", "&", "{", "}"].includes(ch)) { result.push([current, separator]); current = ""; separator = ch; continue; }
+    current += ch;
+  }
+  result.push([current, separator]);
+  return result;
+}
+
+function tokens(command: string): string[] {
+  return command.match(/'[^']*'|"(?:[^"\\]|\\.)*"|\S+/g)?.map(t => t.replace(/^['"]|['"]$/g, "")) ?? [];
+}
+
+
+const NESTED_SHELLS = new Set(["bash", "sh", "zsh", "dash", "powershell", "pwsh", "cmd"]);
+const NESTED_SHELL_FLAGS = new Set(["-command", "-c", "/c", "/k", "-lc"]);
+const LAUNCHERS = new Set(["&", ".", "npx", "bunx", "uvx", "pipx", "env", "sudo", "nohup", "time", "exec", "call", "start", "command", "xargs", "start-process", "saps"]);
+const PACKAGE_RUNNERS = new Set(["pnpm", "yarn", "npm", "bun"]);
+const PACKAGE_RUNNER_VERBS = new Set(["dlx", "exec", "x"]);
+const SCRIPT_HOSTS = new Set(["node", "bun", "deno", "tsx"]);
+const UH_SPAWN_OPERATIONS = new Set(["run", "run-all", "run-team"]);
+
+/** Executable identity of a command token: basename, lowercased, without a Windows launcher extension. */
+function executableName(token: string): string {
+  const base = token.replaceAll("\\", "/").split("/").at(-1) ?? "";
+  return base.toLowerCase().replace(/\.(?:exe|cmd|bat|com|ps1)$/, "");
+}
+
+/** Bodies of `$(...)` and backtick substitutions. Single-quoted text is literal and never scanned. */
+function substitutions(command: string): string[] {
+  const bodies: string[] = [];
+  let single = false;
+  for (let i = 0; i < command.length; i += 1) {
+    const ch = command[i];
+    if (ch === "'") { single = !single; continue; }
+    if (single) continue;
+    if (ch === "$" && command[i + 1] === "(") {
+      let depth = 1, j = i + 2;
+      for (; j < command.length && depth > 0; j += 1) {
+        if (command[j] === "(") depth += 1;
+        else if (command[j] === ")") depth -= 1;
+      }
+      bodies.push(command.slice(i + 2, depth === 0 ? j - 1 : j));
+      i += 1;
+    } else if (ch === "`") {
+      const end = command.indexOf("`", i + 1);
+      if (end < 0) break;
+      bodies.push(command.slice(i + 1, end));
+      i = end;
+    }
+  }
+  return bodies;
+}
+
+/** A UH invocation that starts paid runtimes. Read-only UH commands such as `validate` and `status` are not spawns. */
+function uhSpawn(args: string[]): boolean {
+  const positional = args.filter(t => !t.startsWith("-")).map(t => t.toLowerCase());
+  if (positional[0] === "mission") return UH_SPAWN_OPERATIONS.has(positional[1] ?? "");
+  return positional[0] === "acceptance" && positional[1] === "run";
+}
+
+/**
+ * True when a command would start an agent client. Only executable positions are
+ * judged: the head of each shell segment, what a launcher or nested shell would
+ * run, and command substitutions. A client name that appears as an argument,
+ * a search pattern or a path is not an invocation.
+ */
+function agentClientInvoked(command: string, clients: ReadonlySet<string>, depth = 0): boolean {
+  if (!clients.size || depth > 4) return false;
+  for (const body of substitutions(command)) if (agentClientInvoked(body, clients, depth + 1)) return true;
+  for (const [segment] of splitSegments(command)) {
+    const ts = tokens(segment);
+    let i = 0;
+    while (i < ts.length) {
+      if (/^\w+=/.test(ts[i])) { i += 1; continue; }
+      const name = executableName(ts[i]);
+      if (clients.has(name)) return true;
+      if (name === "uh") { if (uhSpawn(ts.slice(i + 1))) return true; break; }
+      if (NESTED_SHELLS.has(name)) {
+        const flag = ts.findIndex((t, index) => index > i && NESTED_SHELL_FLAGS.has(t.toLowerCase()));
+        if (flag >= 0 && agentClientInvoked(ts.slice(flag + 1).join(" "), clients, depth + 1)) return true;
+        break;
+      }
+      if (SCRIPT_HOSTS.has(name)) {
+        const rest = ts.slice(i + 1).filter(t => !t.startsWith("-"));
+        if (rest[0]?.toLowerCase() === "run") rest.shift();
+        const script = (rest[0] ?? "").replaceAll("\\", "/").toLowerCase();
+        if ((script === "dist/cli.js" || script.endsWith("/dist/cli.js")) && uhSpawn(rest.slice(1))) return true;
+        if (!(PACKAGE_RUNNERS.has(name) && PACKAGE_RUNNER_VERBS.has((ts[i + 1] ?? "").toLowerCase()))) break;
+      }
+      if (PACKAGE_RUNNERS.has(name) && PACKAGE_RUNNER_VERBS.has((ts[i + 1] ?? "").toLowerCase())) { i += 2; }
+      else if (LAUNCHERS.has(name)) { i += 1; }
+      else break;
+      // Launcher flags may carry a value, so the token after a flag is judged as well as the next one.
+      let afterFlag = false;
+      while (i < ts.length && (ts[i].startsWith("-") || /^\w+=/.test(ts[i]))) { afterFlag = ts[i].startsWith("-"); i += 1; }
+      if (afterFlag && i + 1 < ts.length && clients.has(executableName(ts[i + 1]))) return true;
+    }
+  }
+  return false;
+}
+
+const CONTAINMENT_SCHEDULERS = new Set(["setsid", "systemd-run", "disown", "at", "batch"]);
+const CONTAINMENT_TASK_SERVICES = new Set(["register-scheduledtask", "start-scheduledtask", "new-service", "start-service"]);
+
+/** Whether the arguments of a `wmic` invocation request `Win32_Process.Create`. */
+function wmicCreatesProcess(args: string[]): boolean {
+  const low = args.map(t => t.toLowerCase());
+  return low.some((t, i) => t === "process" && low[i + 1] === "call" && low[i + 2] === "create");
+}
+
+/** Whether a WMI process-creation cmdlet names both `Win32_Process` and `Create`. */
+function cimMethodCreatesProcess(name: string, args: string[]): boolean {
+  if (name !== "invoke-cimmethod" && name !== "invoke-wmimethod") return false;
+  return args.some(t => t.toLowerCase().includes("win32_process"))
+    && args.some(t => { const low = t.toLowerCase(); return low === "create" || low.endsWith(":create"); });
+}
+
+/** Whether the executable `name` with these arguments would launch outside the supervised tree. */
+function containmentSpawnerInvoked(name: string, args: string[]): boolean {
+  if (CONTAINMENT_SCHEDULERS.has(name) || CONTAINMENT_TASK_SERVICES.has(name)) return true;
+  if (name === "crontab") return (args[0] ?? "").toLowerCase() !== "-l";
+  if (name === "sc") return args.some(t => { const low = t.toLowerCase(); return low === "create" || low === "start"; });
+  if (name === "schtasks") return args.some(t => /^[-/](?:create|run)$/i.test(t));
+  if (name === "wmic") return wmicCreatesProcess(args);
+  return cimMethodCreatesProcess(name, args);
+}
+
+/**
+ * True when a command would launch a process outside the supervised job or
+ * process tree: WMI process creation, scheduled tasks, services, and detached
+ * or scheduled POSIX launches. Executable positions are judged exactly the way
+ * agent clients are judged: the head of each shell segment, what a launcher or
+ * nested shell would run, and command substitutions. A launch name that
+ * appears as an argument, a search pattern or a path is not an invocation.
+ */
+function containmentEscapeInvoked(command: string, depth = 0): boolean {
+  if (depth > 4) return false;
+  for (const body of substitutions(command)) if (containmentEscapeInvoked(body, depth + 1)) return true;
+  const bodies = splitSegments(command);
+  for (let s = 0; s < bodies.length; s += 1) {
+    const [segment] = bodies[s];
+    const ts = tokens(segment);
+    if (!ts.length) continue;
+    // The [wmiclass] cast is the executable position of PowerShell WMI object construction.
+    if (ts.some(t => /\[wmiclass\]/i.test(t)) && /win32_process/i.test(segment) && /\.create\s*\(/i.test(segment)) return true;
+    const backgrounded = s + 1 < bodies.length && bodies[s + 1][1] === "&";
+    let i = 0;
+    while (i < ts.length) {
+      if (/^\w+=/.test(ts[i])) { i += 1; continue; }
+      const name = executableName(ts[i]);
+      // nohup stays in the process group exactly until its segment is backgrounded.
+      if (name === "nohup" && backgrounded) return true;
+      if (containmentSpawnerInvoked(name, ts.slice(i + 1))) return true;
+      if (NESTED_SHELLS.has(name)) {
+        const flag = ts.findIndex((t, index) => index > i && NESTED_SHELL_FLAGS.has(t.toLowerCase()));
+        if (flag >= 0 && containmentEscapeInvoked(ts.slice(flag + 1).join(" "), depth + 1)) return true;
+        break;
+      }
+      if (SCRIPT_HOSTS.has(name) && !(PACKAGE_RUNNERS.has(name) && PACKAGE_RUNNER_VERBS.has((ts[i + 1] ?? "").toLowerCase()))) break;
+      if (PACKAGE_RUNNERS.has(name) && PACKAGE_RUNNER_VERBS.has((ts[i + 1] ?? "").toLowerCase())) { i += 2; }
+      else if (LAUNCHERS.has(name)) { i += 1; }
+      else break;
+      // Launcher flags may carry a value, so the token after a flag is judged as well as the next one.
+      let afterFlag = false;
+      while (i < ts.length && (ts[i].startsWith("-") || /^\w+=/.test(ts[i]))) { afterFlag = ts[i].startsWith("-"); i += 1; }
+      if (afterFlag && i + 1 < ts.length && containmentSpawnerInvoked(executableName(ts[i + 1]), ts.slice(i + 2))) return true;
+    }
+  }
+  return false;
+}
+
+type DirectoryState = { current?: string; unknown: boolean; stack: Array<{ current?: string; unknown: boolean }> };
+type ShellTarget = { value: string; resolved?: string; ignored?: boolean };
+
+function assignments(command: string): Map<string, string> {
+  const result = new Map<string, string>();
+  const addLiteral = (name: string, value: string): void => {
+    const clean = value.trim().replace(/^['"]|['"]$/g, "");
+    if (!clean || clean.startsWith("$") || clean.startsWith("%") || clean.startsWith("~") || clean.includes("`") || clean.includes("$(")) return;
+    result.set(name.toLowerCase(), clean);
+  };
+  for (const match of command.matchAll(/\$(\w+)\s*=\s*['"]([^'"]+)['"]/g)) addLiteral(match[1], match[2]);
+  for (const match of command.matchAll(/\$(\w+)\s*=\s*([^;&|]+)/g)) addLiteral(match[1], match[2]);
+  for (const match of command.matchAll(/\bset\s+(\w+)=([^\s&;]+)/gi)) addLiteral(match[1], match[2]);
+  return result;
+}
+function resolveToken(value: string, vars: Map<string, string>): string | undefined {
+  const clean = value.replace(/^['"]|['"]$/g, "");
+  if (!clean || clean === "-" || clean.startsWith("~") || clean.includes("$(") || clean.includes("`")) return undefined;
+  const windowsVariable = clean.match(/^%(\w+)%((?:.*))$/);
+  if (windowsVariable) {
+    const base = vars.get(windowsVariable[1].toLowerCase());
+    return base === undefined ? undefined : `${base}${windowsVariable[2]}`;
+  }
+  if (/%[^%]+%/.test(clean)) return undefined;
+  const match = clean.match(/^\$(\w+)\b(.*)$/);
+  if (!match) return clean;
+  const base = vars.get(match[1].toLowerCase());
+  return base === undefined ? undefined : `${base}${match[2]}`;
+}
+
+function staticDirectory(value: string, base: string | undefined, workerRoot: string, vars: Map<string, string>): string | undefined {
+  const resolved = resolveToken(value, vars);
+  if (resolved === undefined) return undefined;
+  return normalized(resolved, base ?? workerRoot);
+}
+
+function absolutePath(value: string): boolean {
+  return value.startsWith("/") || value.startsWith("\\\\") || /^[a-zA-Z]:[\\/]/.test(value);
+}
+
+function redirectionTargets(command: string): string[] {
+  const targets: string[] = [];
+  let quote = "";
+  for (let index = 0; index < command.length; index += 1) {
+    const character = command[index];
+    if (quote) {
+      if (character === "\\" && quote === '"' && index + 1 < command.length) index += 1;
+      else if (character === quote) quote = "";
+      continue;
+    }
+    if (character === "'" || character === '"') { quote = character; continue; }
+    if (character !== ">") continue;
+    if (index > 0 && /\d/.test(command[index - 1])) index -= 1;
+    if (command[index] === ">" && command[index + 1] === ">") index += 1;
+    index += 1;
+    while (index < command.length && /\s/.test(command[index])) index += 1;
+    const start = index;
+    while (index < command.length && !/[\s;&|]/.test(command[index])) index += 1;
+    if (index > start) targets.push(command.slice(start, index));
+    index -= 1;
+  }
+  return targets;
+}
+
+function shellTarget(value: string, state: DirectoryState, workerRoot: string, vars: Map<string, string>): ShellTarget {
+  const cleanValue = value.replace(/^\d+/, "").replace(/^>/, "");
+  const resolved = resolveToken(cleanValue, vars);
+  if (!cleanValue || NULL_TARGETS.has(cleanValue.toLowerCase()) || cleanValue.startsWith("&")) return { value: cleanValue, ignored: true };
+  if (resolved === undefined || state.unknown) return { value: cleanValue };
+  if (absolutePath(resolved)) return { value: cleanValue, resolved: normalized(resolved, workerRoot) };
+  if (state.current === undefined) return { value: cleanValue };
+  return { value: cleanValue, resolved: normalized(resolved, state.current) };
+}
+function commandBody(segment: string): string | undefined {
+  const ts = tokens(segment);
+  if (!ts.length) return undefined;
+  const head = executableName(ts[0]);
+  if (!NESTED_SHELLS.has(head)) return undefined;
+  const flag = ts.findIndex((token, index) => index > 0 && NESTED_SHELL_FLAGS.has(token.toLowerCase()));
+  if (flag < 0) return undefined;
+  let body = ts.slice(flag + 1).join(" ").trim();
+  if (body.startsWith('\\"') && body.endsWith('\\"')) body = body.slice(2, -2);
+  else if (body.length >= 2 && ((body.startsWith('"') && body.endsWith('"')) || (body.startsWith("'") && body.endsWith("'")))) body = body.slice(1, -1);
+  return body.replaceAll('\\"', '"').replaceAll('`"', '"') || undefined;
+}
+
+function directoryArgument(ts: string[]): string | undefined {
+  const flag = ts.findIndex(token => ["-path", "-literalpath"].includes(token.toLowerCase()));
+  if (flag >= 0) return ts[flag + 1];
+  return ts.slice(1).find(token => !["/d", "-d"].includes(token.toLowerCase()) && !token.startsWith("-"));
+}
+
+function applyDirectoryChange(segment: string, state: DirectoryState, workerRoot: string, vars: Map<string, string>): void {
+  const ts = tokens(segment);
+  if (!ts.length) return;
+  const verb = executableName(ts[0]);
+  if (verb === "popd" || verb === "pop-location") {
+    const previous = state.stack.pop();
+    state.current = previous?.current;
+    state.unknown = previous?.unknown ?? false;
+    return;
+  }
+  if (!["cd", "chdir", "pushd", "set-location", "sl", "push-location"].includes(verb)) return;
+  if (verb === "pushd" || verb === "push-location") {
+    state.stack.push({ current: state.current, unknown: state.unknown });
+  }
+  const argument = directoryArgument(ts);
+  const current = argument === undefined ? undefined : staticDirectory(argument, state.current, workerRoot, vars);
+  state.current = current;
+  state.unknown = argument === undefined || current === undefined;
+}
+
+function collectShellTargets(command: string, initialDirectory: string | undefined, workerRoot: string): {
+  writes: ShellTarget[];
+  deletes: ShellTarget[];
+  unresolvedDelete: boolean;
+} {
+  const vars = assignments(command);
+  const writes: ShellTarget[] = [];
+  const deletes: ShellTarget[] = [];
+  let unresolvedDelete = false;
+  const scan = (body: string, initial: DirectoryState): void => {
+    const segments = splitSegments(body);
+    let previous: [string, string] | undefined;
+    for (const [segment, separator] of segments) {
+      const state: DirectoryState = { current: initial.current, unknown: initial.unknown, stack: [...initial.stack] };
+      applyDirectoryChange(segment, state, workerRoot, vars);
+      const ts = tokens(segment);
+      if (ts.length) {
+        for (const target of redirectionTargets(segment)) writes.push(shellTarget(target, state, workerRoot, vars));
+        const verb = ts[0].toLowerCase();
+        if (COPY_VERBS.has(verb)) {
+          const positional = ts.slice(1).filter(token => !token.startsWith("-") && !token.startsWith("/"));
+          let destination = positional.at(-1);
+          const destinationFlag = ts.findIndex(token => token.toLowerCase() === "-destination");
+          if (destinationFlag >= 0) destination = ts[destinationFlag + 1];
+          if (destination) writes.push(shellTarget(destination, state, workerRoot, vars));
+        }
+        for (let index = 0; index < ts.length; index += 1) {
+          const token = ts[index];
+          if (token === ">" || token === ">>") {
+            if (ts[index + 1]) writes.push(shellTarget(ts[++index], state, workerRoot, vars));
+          } else if (token.startsWith(">") && !token.startsWith(">>") && token.length > 1) {
+            writes.push(shellTarget(token.slice(1), state, workerRoot, vars));
+          } else if (token.startsWith(">>") && token.length > 2) {
+            writes.push(shellTarget(token.slice(2), state, workerRoot, vars));
+          } else if (["out-file", "set-content", "add-content", "tee", "tee-object"].includes(token.toLowerCase())) {
+            const rest = ts.slice(index + 1);
+            const low = rest.map(item => item.toLowerCase());
+            const flag = ["-path", "-filepath", "-literalpath"].find(item => low.includes(item));
+            if (flag && rest[low.indexOf(flag) + 1]) writes.push(shellTarget(rest[low.indexOf(flag) + 1], state, workerRoot, vars));
+            else {
+              for (let offset = 0; offset < rest.length; offset += 1) {
+                if (rest[offset].startsWith("-")) { if (VALUE_FLAGS.has(rest[offset].toLowerCase())) offset += 1; continue; }
+                writes.push(shellTarget(rest[offset], state, workerRoot, vars));
+                break;
+              }
+            }
+          }
+        }
+        if (DEL_VERBS.has(verb)) {
+          const args: string[] = [];
+          for (let index = 1; index < ts.length; index += 1) {
+            const token = ts[index], low = token.toLowerCase();
+            if ((low === "-path" || low === "-literalpath") && ts[index + 1]) { args.push(...ts[++index].split(",")); continue; }
+            if (VALUE_FLAGS.has(low) || VALUE_FLAGS.has(low.split(":")[0])) { if (!token.includes(":")) index += 1; continue; }
+            if (token.startsWith("-") || token.startsWith("/")) continue;
+            args.push(...token.split(","));
+          }
+          if (!args.length && separator === "|" && previous) {
+            const priorTokens = tokens(previous[0]);
+            if (priorTokens.length && ["get-childitem", "gci", "ls", "dir", "get-item", "gi"].includes(priorTokens[0].toLowerCase())) {
+              args.push(...priorTokens.slice(1).filter(token => !token.startsWith("-")));
+            }
+          }
+          if (!args.length) unresolvedDelete = true;
+          for (const target of args) deletes.push(shellTarget(target, state, workerRoot, vars));
+        }
+      }
+      const nested = commandBody(segment);
+      if (nested) scan(nested, { current: state.current, unknown: state.unknown, stack: [...state.stack] });
+      previous = [segment, separator];
+      initial.current = state.current;
+      initial.unknown = state.unknown;
+      initial.stack = state.stack;
+    }
+  };
+  scan(command, { current: initialDirectory, unknown: initialDirectory === undefined, stack: [] });
+  return { writes, deletes, unresolvedDelete };
+}
+
+function writeTargets(command: string, initialDirectory: string | undefined, workerRoot: string): ShellTarget[] {
+  return collectShellTargets(command, initialDirectory, workerRoot).writes;
+}
+
+function deleteTargets(command: string, initialDirectory: string | undefined, workerRoot: string): { targets: ShellTarget[]; unresolved: boolean } {
+  const result = collectShellTargets(command, initialDirectory, workerRoot);
+  return { targets: result.deletes, unresolved: result.unresolvedDelete };
+}
+
+/**
+ * One canonical comparison form for paths, independent of the host running UH.
+ * The guard judges commands written for whatever platform the agent targets,
+ * so a `C:\worker` root and an `out\x` target must relate the same way on
+ * Linux CI as they do on Windows.
+ */
+function normalized(value: string, root: string): string {
+  const isWindows = /^[a-zA-Z]:[\\/]/.test(root) || root.startsWith("\\\\") || /^[a-zA-Z]:[\\/]/.test(value);
+  let raw = isWindows ? value.replaceAll("\\", "/") : value;
+  let base = isWindows ? root.replaceAll("\\", "/") : root;
+
+  if (isWindows) {
+    base = base.replace(/\/+$/, "");
+    // Windows drive-relative syntax like "C:foo" or "C:..\bar"
+    const driveRel = raw.match(/^([a-zA-Z]):(?!\/)(.*)/);
+    if (driveRel) {
+      const drive = driveRel[1].toLowerCase();
+      const rest = driveRel[2];
+      const baseDrive = base.match(/^([a-zA-Z]):/);
+      if (baseDrive && baseDrive[1].toLowerCase() === drive) {
+        raw = `${base}/${rest}`;
+      } else {
+        raw = `${drive}:/${rest}`;
+      }
+    }
+  } else {
+    base = base.replace(/\/+$/, "");
+    if (base === "") base = "/";
+  }
+
+  const isAbs = /^[a-zA-Z]:\//.test(raw) || raw.startsWith("/");
+  let combined = isAbs ? raw : (base === "/" ? `/${raw}` : `${base}/${raw}`);
+
+  let prefix = "";
+  if (/^[a-zA-Z]:\//.test(combined)) {
+    prefix = combined.slice(0, 3).toLowerCase();
+    combined = combined.slice(3);
+  } else if (combined.startsWith("/")) {
+    prefix = "/";
+    combined = combined.slice(1);
+  }
+
+  const segments: string[] = [];
+  for (const segment of combined.split("/")) {
+    if (segment === "" || segment === ".") continue;
+    if (segment === "..") { segments.pop(); continue; }
+    segments.push(isWindows ? segment.toLowerCase() : segment);
+  }
+  return prefix + segments.join("/");
+}
+function inside(value: string, root: string, roots: string[]): boolean {
+  const candidate = normalized(value, root);
+  return roots.some(r => {
+    const base = normalized(r, root);
+    if (base === "/" || /^[a-zA-Z]:\/$/.test(base)) {
+      return candidate === base || candidate.startsWith(base);
+    }
+    return candidate === base || candidate.startsWith(`${base}/`);
+  });
+}
+function protectedRoot(value: string, root: string, roots: string[]): string | undefined {
+  const candidate = normalized(value, root);
+  return roots.find(r => {
+    const base = normalized(r, root);
+    if (base === "/" || /^[a-zA-Z]:\/$/.test(base)) {
+      return candidate === base || candidate.startsWith(base);
+    }
+    return candidate === base || candidate.startsWith(`${base}/`);
+  });
+}
+const HARNESS_STATE_SEGMENTS = [".harness", ".commandcode", ".omp", ".pi"];
+
+function pathSegments(value: string): string[] {
+  return value.replaceAll("\\", "/").split("/").filter(Boolean).map(segment => segment.toLowerCase());
+}
+
+function tamperTarget(target: ShellTarget, workerRoot: string): boolean {
+  const candidate = target.resolved ?? target.value;
+  const configured = [process.env.UH_TOOL_GUARD_POLICY, process.env.UH_TOOL_GUARD_LOG].filter(
+    (value): value is string => Boolean(value),
+  );
+  if (configured.some(value => normalized(value, workerRoot) === normalized(candidate, workerRoot))) return true;
+  // Harness state inside the worker root is the protected_root class, which supervision already hard-stops.
+  if (target.resolved !== undefined && inside(candidate, workerRoot, ["."])) return false;
+  if (absolutePath(target.value)) return pathSegments(candidate).some(segment => HARNESS_STATE_SEGMENTS.includes(segment));
+  const segments = pathSegments(candidate);
+  for (let index = 0; index < segments.length; index += 1) {
+    if (!HARNESS_STATE_SEGMENTS.includes(segments[index])) continue;
+    const stateRoot = segments.slice(0, index + 1).join("/");
+    if (!inside(stateRoot, workerRoot, ["."]) && !inside(workerRoot, stateRoot, ["."])) return true;
+  }
+  return false;
+}
+
+function reason(className: ToolGuardClass, policy: ToolGuardPolicy, target = ""): ToolGuardDecision {
+  const roots = policy.write_roots.join(", ");
+  const text = className === "write_outside" ? `CONTRACT: write only under ${roots}. Put the file under ${policy.write_roots[0]} instead.`
+    : className === "git_mutation" ? "CONTRACT: no git mutations; the harness commits for you. Use read-only git (status, diff, log) or skip it."
+    : className === "delete_outside" || className === "kill_or_format" ? `CONTRACT: deletes and process kills only inside ${roots}.`
+    : className === "package_install" ? "CONTRACT: no package installs. Use what is installed; if a dependency is missing, end with BLOCKED: <dependency>."
+    : className === "agent_client" ? "CONTRACT: no sub-agents. Workers do not start agents, agent CLIs or harness runs. Do the work yourself; if part of it exceeds your scope, end with ESCALATE: <what your orchestrator should delegate>."
+    : className === "network_client" ? "CONTRACT: no network or agent clients. Everything you need is on disk; if it is not, end with BLOCKED: <what is missing>."
+    : className === "containment_escape" ? "CONTRACT: no launches outside the supervised process tree. Run the work in the foreground of this run instead."
+    : className === "guard_tamper" ? "CONTRACT: the harness policy and its state are not yours to change."
+    : `CONTRACT: ${target || "path"} belongs to the harness and is read-only.`;
+  return { deny: { class: className, target: target || undefined, reason: text + SUFFIX } };
+}
+function gitMutation(command: string): boolean {
+  const tokens = command.match(/"[^"]*"|'[^']*'|\S+/g)?.map(token => token.replace(/^['"]|['"]$/g, "")) ?? [];
+  const git = tokens.findIndex(token => token.toLowerCase() === "git");
+  if (git < 0) return false;
+  const valueOptions = new Set(["-c", "-C", "--git-dir", "--work-tree", "--namespace"]);
+  const mutations = new Set(["commit", "checkout", "stash", "reset", "add", "merge", "rebase", "push", "switch", "restore", "clean"]);
+  for (let i = git + 1; i < tokens.length; i += 1) {
+    const token = tokens[i].toLowerCase();
+    if (token.startsWith("-")) {
+      if (valueOptions.has(token)) i += 1;
+      continue;
+    }
+    return mutations.has(token);
+  }
+  return false;
+}
+export type ControllerGuardOptions = { allowControllerCommands?: boolean };
+
+function isControllerCommand(command: string): boolean {
+  if (!command || /[\r\n;&|`<>]/.test(command)) return false;
+  const commandTokens = tokens(command);
+  if (commandTokens[0] === "&") commandTokens.shift();
+  if (!commandTokens.length) return false;
+  const executable = commandTokens[0].replaceAll("\\", "/").toLowerCase();
+  let argumentIndex = 1;
+  if (path.basename(executable) === "node" || path.basename(executable) === "node.exe" ||
+      path.basename(executable) === "bun" || path.basename(executable) === "bun.exe") {
+    const script = commandTokens[1]?.replaceAll("\\", "/").toLowerCase() ?? "";
+    if (!script.endsWith("/dist/cli.js") && script !== "dist/cli.js") return false;
+    argumentIndex = 2;
+  } else if (!["uh", "uh.cmd", "uh.exe"].includes(path.basename(executable))) {
+    return false;
+  }
+  const operation = commandTokens[argumentIndex]?.toLowerCase();
+  if (!operation || !new Set(["acceptance", "adapter", "init", "mission", "observatory", "propose", "sandbox", "skill", "spec", "status", "validate", "verify"]).has(operation)) return false;
+  return !commandTokens.some(token => /^(?:--force|--yolo|--dangerously|--bypass|--permission-prompts(?:=|$))/i.test(token));
+}
+
+export function decideToolCall(
+  policy: ToolGuardPolicy,
+  toolName: string,
+  input: unknown,
+  workerRoot: string,
+  options: ControllerGuardOptions = {},
+): ToolGuardDecision {
+  const args = input && typeof input === "object" && !Array.isArray(input) ? input as Record<string, unknown> : {};
+  const lowerTool = toolName.toLowerCase();
+  const protectedPaths = [...DEFAULT_PROTECTED_PATHS, ...(policy as ToolGuardPolicy & { protected_paths?: string[] }).protected_paths ?? []];
+  const explicitDirectory = ["cwd", "workdir", "directory"].map(key => args[key]).find(
+    value => typeof value === "string" && value,
+  ) as string | undefined;
+  const directTarget = ["file_path", "path", "notebook_path", "directory", "cwd"].map(key => args[key]).find(
+    value => typeof value === "string" && value,
+  ) as string | undefined;
+  if (WRITE_TOOLS.has(lowerTool) && directTarget) {
+    const target = shellTarget(directTarget, {
+      current: explicitDirectory ? staticDirectory(explicitDirectory, workerRoot, workerRoot, new Map()) : normalized(workerRoot, workerRoot),
+      unknown: Boolean(explicitDirectory && staticDirectory(explicitDirectory, workerRoot, workerRoot, new Map()) === undefined),
+      stack: [],
+    }, workerRoot, new Map());
+    const candidate = target.resolved ?? target.value;
+    if (tamperTarget(target, workerRoot)) return reason("guard_tamper", policy, directTarget);
+    const protectedPath = protectedRoot(candidate, workerRoot, protectedPaths);
+    if (protectedPath) return reason("protected_root", policy, protectedPath);
+    if (!target.resolved || (DELETE_TOOLS.has(lowerTool) && !inside(candidate, workerRoot, policy.write_roots))) {
+      return reason(DELETE_TOOLS.has(lowerTool) ? "delete_outside" : "write_outside", policy, directTarget);
+    }
+    if (!DELETE_TOOLS.has(lowerTool) && !inside(candidate, workerRoot, policy.write_roots)) return reason("write_outside", policy, directTarget);
+  }
+  if (AGENT_TOOLS.has(lowerTool) && policy.agent_clients.length && !policy.allow_native_subagents) return reason("agent_client", policy);
+  if (!SHELL_TOOLS.has(lowerTool)) return {};
+  const command = `${typeof args.command === "string" ? args.command : ""} ${Array.isArray(args.args) ? args.args.map(String).join(" ") : ""}`.trim();
+  if (options.allowControllerCommands && isControllerCommand(command)) return {};
+  if (policy.deny_git_mutations && gitMutation(command)) return reason("git_mutation", policy);
+  if (policy.deny_package_installs && /\b(?:pip|pip3|uv|conda|npm|pnpm|yarn)\s+(?:install|add|i)\b/i.test(command)) return reason("package_install", policy);
+  if (policy.deny_network_clients && /\b(?:curl|wget|invoke-webrequest|iwr|invoke-restmethod|irm)\b/i.test(command)) return reason("network_client", policy);
+  if (containmentEscapeInvoked(command)) return reason("containment_escape", policy);
+  if (agentClientInvoked(command, new Set(policy.agent_clients.map(client => executableName(client))))) return reason("agent_client", policy);
+  if (/\b(?:taskkill|stop-process|kill\s+-9)\b|\bformat\s+[a-z]:/i.test(command)) return reason("kill_or_format", policy);
+  const vars = assignments(command);
+  const initialDirectory = explicitDirectory
+    ? staticDirectory(explicitDirectory, workerRoot, workerRoot, vars)
+    : normalized(workerRoot, workerRoot);
+  const deletes = deleteTargets(command, initialDirectory, workerRoot);
+  for (const target of deletes.targets) {
+    if (target.ignored) continue;
+    const candidate = target.resolved ?? target.value;
+    if (tamperTarget(target, workerRoot)) return reason("guard_tamper", policy, target.value);
+    const protectedPath = protectedRoot(candidate, workerRoot, protectedPaths);
+    if (protectedPath) return reason("protected_root", policy, protectedPath);
+    if (!target.resolved || !inside(candidate, workerRoot, policy.write_roots)) return reason("delete_outside", policy, target.value);
+  }
+  if (deletes.unresolved) return reason("delete_outside", policy);
+  for (const target of writeTargets(command, initialDirectory, workerRoot)) {
+    if (target.ignored) continue;
+    const candidate = target.resolved ?? target.value;
+    if (tamperTarget(target, workerRoot)) return reason("guard_tamper", policy, target.value);
+    const protectedPath = protectedRoot(candidate, workerRoot, protectedPaths);
+    if (protectedPath) return reason("protected_root", policy, protectedPath);
+    if (!target.resolved || !inside(candidate, workerRoot, policy.write_roots)) return reason("write_outside", policy, target.value);
+  }
+  return {};
+}
+
+export function toolTargetForLog(toolName: string, input: unknown): string {
+  const args = input && typeof input === "object" && !Array.isArray(input) ? input as Record<string, unknown> : {};
+  for (const key of ["file_path", "path", "directory", "cwd", "notebook_path", "command"]) if (typeof args[key] === "string") return args[key] as string;
+  return toolName;
+}
diff --git a/src/harness/typesafe.ts b/src/harness/typesafe.ts
new file mode 100644
index 0000000..b98ea65
--- /dev/null
+++ b/src/harness/typesafe.ts
@@ -0,0 +1,433 @@
+import { z } from "zod";
+
+export const TYPESAFE_SYSTEM_ONE_ENDPOINT = "https://api.typesafe.ai/v1/systemone";
+export const DEFAULT_TYPESAFE_MODEL = "jev-latest";
+export const DEFAULT_TYPESAFE_TIMEOUT_MS = 10_000;
+/** Attempts including the first; only 429 and 529 responses are retried. */
+export const TYPESAFE_MAX_ATTEMPTS = 3;
+/** Backoff before attempt 2 and attempt 3 when the response carries no numeric `retry-after`. */
+export const TYPESAFE_RETRY_DELAYS_MS: readonly number[] = [250, 1000];
+/** `retry-after` is read in seconds and capped so a hostile header cannot stall verification. */
+export const TYPESAFE_RETRY_AFTER_CAP_SECONDS = 5;
+
+/**
+ * Composition thresholds. These are harness policy, never model output: a
+ * per-criterion Noul below `REMEDIATION_THRESHOLD` fails its criterion, at or
+ * above `PASS_THRESHOLD` it satisfies it, and a report Noul at or above
+ * `REPORT_FLAG_THRESHOLD` raises a report flag that blocks a pass.
+ */
+export const REMEDIATION_THRESHOLD = 0.5;
+export const PASS_THRESHOLD = 0.8;
+export const REPORT_FLAG_THRESHOLD = 0.5;
+
+const RETRYABLE_STATUSES: readonly number[] = [429, 529];
+
+/** The fixed report battery: atomic Nouls about the report itself, always asked. */
+export const REPORT_QUESTIONS = {
+  work_incomplete: "report_work_incomplete",
+  names_blocker: "report_names_blocker",
+  claims_failed_check_passed: "report_claims_failed_check_passed",
+} as const;
+export const REPORT_QUESTION_NAMES: readonly string[] = Object.values(REPORT_QUESTIONS);
+
+export type NoulQuestion = {
+  type: "noul";
+  instructions?: unknown;
+  criteria?: { true?: unknown; false?: unknown } | null;
+};
+
+export type ChoiceQuestion = {
+  type: "choice";
+  instructions?: unknown;
+  criteria: Record<string, unknown>;
+};
+
+export type ScoreQuestion = {
+  type: "score";
+  instructions?: unknown;
+  criteria: unknown[];
+};
+
+export type Question = NoulQuestion | ChoiceQuestion | ScoreQuestion;
+
+export type TypeSafeAnswer = {
+  noul?: number;
+  choice?: string;
+  probabilities?: Record<string, number>;
+  score?: number;
+};
+
+export type TypeSafeUsage = {
+  input_tokens: number;
+  output_tokens: number;
+};
+
+export type SystemOneDisabled = { kind: "disabled" };
+
+export type SystemOneUnavailable = {
+  kind: "unavailable";
+  reason: "timeout" | "transport" | "http";
+  status?: number;
+};
+
+export type SystemOneMalformed = {
+  kind: "malformed";
+  reason: "invalid_json" | "invalid_envelope";
+};
+
+export type SystemOneOk = {
+  kind: "ok";
+  /** The versioned model id that actually answered, never the requested alias. */
+  model: string;
+  answers: Record<string, TypeSafeAnswer>;
+  usage?: TypeSafeUsage;
+  latency_ms: number;
+};
+
+export type SystemOneResult = SystemOneOk | SystemOneDisabled | SystemOneUnavailable | SystemOneMalformed;
+
+/** One criterion with the evidence state the caller supplies for it. */
+export type SystemOneCriterion = {
+  id: string;
+  description?: string;
+  severity?: string;
+  /** Set when the harness already established the result deterministically. */
+  status?: string;
+  check_command?: string;
+  exit_code?: number;
+};
+
+export type SystemOneState = {
+  contract: unknown;
+  diff?: string;
+  outputs?: unknown;
+  /** Criteria with their evidence states; deterministic results are never sent to the provider. */
+  criteria?: readonly SystemOneCriterion[];
+  /** Deterministic tamper evidence owned by Tool Guard, protected paths and the captured diff. */
+  tamper?: boolean;
+};
+
+export type EvaluateSystemOneOptions = {
+  state: unknown;
+  questions: Record<string, Question>;
+  model?: string;
+  apiKey?: string;
+  timeoutMs?: number;
+  /** Injectable transport; defaults to the ambient fetch. */
+  fetch?: typeof globalThis.fetch;
+  /** Injectable sleep; defaults to a timer. */
+  delay?: (ms: number) => Promise<void>;
+};
+
+const EnvelopeSchema = z.object({
+  model: z.string().min(1),
+  answers: z.record(z.string(), z.unknown()),
+  usage: z.unknown().optional(),
+});
+
+const isUnitInterval = (value: unknown): value is number =>
+  typeof value === "number" && Number.isFinite(value) && value >= 0 && value <= 1;
+
+function validateAnswer(question: Question, answer: unknown): TypeSafeAnswer | undefined {
+  if (typeof answer !== "object" || answer === null || Array.isArray(answer)) return undefined;
+  const record = answer as Record<string, unknown>;
+  switch (question.type) {
+    case "noul": {
+      return isUnitInterval(record.noul) ? { noul: record.noul } : undefined;
+    }
+    case "choice": {
+      const options = Object.keys(question.criteria ?? {});
+      if (options.length === 0) return undefined;
+      const choice = record.choice;
+      if (typeof choice !== "string" || !options.includes(choice)) return undefined;
+      const probabilities = record.probabilities;
+      if (typeof probabilities !== "object" || probabilities === null) return undefined;
+      const entries = probabilities as Record<string, unknown>;
+      const keys = Object.keys(entries);
+      if (keys.length !== options.length || keys.some((key) => !options.includes(key))) return undefined;
+      if (keys.some((key) => !isUnitInterval(entries[key]))) return undefined;
+      return {
+        choice,
+        probabilities: Object.fromEntries(keys.map((key) => [key, entries[key] as number])),
+      };
+    }
+    case "score": {
+      const levels = question.criteria;
+      const score = record.score;
+      if (!Array.isArray(levels) || levels.length === 0) return undefined;
+      if (typeof score !== "number" || !Number.isFinite(score) || score < 0 || score > levels.length - 1) return undefined;
+      return { score };
+    }
+  }
+}
+
+/** Every asked question must carry a valid typed answer; anything else is an invalid envelope. */
+function validateAnswers(
+  questions: Record<string, Question>,
+  answers: Record<string, unknown>,
+): Record<string, TypeSafeAnswer> | undefined {
+  const validated: Record<string, TypeSafeAnswer> = {};
+  for (const [name, question] of Object.entries(questions)) {
+    if (!(name in answers)) return undefined;
+    const answer = validateAnswer(question, answers[name]);
+    if (!answer) return undefined;
+    validated[name] = answer;
+  }
+  return validated;
+}
+
+function parseUsage(value: unknown): TypeSafeUsage | undefined {
+  if (typeof value !== "object" || value === null) return undefined;
+  const { input_tokens: input, output_tokens: output } = value as Record<string, unknown>;
+  const isCount = (count: unknown): count is number => typeof count === "number" && Number.isFinite(count) && count >= 0;
+  return isCount(input) && isCount(output) ? { input_tokens: input, output_tokens: output } : undefined;
+}
+
+function resolveApiKey(apiKey?: string): string | undefined {
+  const resolved = apiKey ?? process.env.TYPESAFE_API_KEY;
+  const trimmed = resolved?.trim();
+  return trimmed || undefined;
+}
+
+export function resolveTypeSafeModel(model?: string): string {
+  return model?.trim() || process.env.UH_TYPESAFE_MODEL?.trim() || DEFAULT_TYPESAFE_MODEL;
+}
+
+function normalizeTimeoutMs(timeoutMs: number | undefined): number {
+  if (timeoutMs === undefined) return DEFAULT_TYPESAFE_TIMEOUT_MS;
+  if (!Number.isFinite(timeoutMs) || timeoutMs <= 0) {
+    throw new Error(`timeoutMs must be a positive number of milliseconds, got ${timeoutMs}`);
+  }
+  return timeoutMs;
+}
+
+const sleep = (ms: number): Promise<void> => new Promise<void>((resolve) => { setTimeout(resolve, ms); });
+
+function raceAbort<T>(operation: Promise<T>, signal: AbortSignal): Promise<T> {
+  return Promise.race([
+    operation,
+    new Promise<never>((_resolve, reject) => {
+      if (signal.aborted) {
+        reject(signal.reason);
+        return;
+      }
+      signal.addEventListener("abort", () => reject(signal.reason), { once: true });
+    }),
+  ]);
+}
+
+function retryDelayMs(response: Response, attempt: number): number {
+  const header = response.headers.get("retry-after")?.trim();
+  const seconds = header ? Number(header) : Number.NaN;
+  if (Number.isFinite(seconds) && seconds >= 0) return Math.min(seconds, TYPESAFE_RETRY_AFTER_CAP_SECONDS) * 1000;
+  return TYPESAFE_RETRY_DELAYS_MS[attempt - 1] ?? TYPESAFE_RETRY_DELAYS_MS[TYPESAFE_RETRY_DELAYS_MS.length - 1];
+}
+
+/**
+ * One bounded provider call. Provider conditions never throw: they are returned
+ * as discriminated results so callers can record why no judgment was applied.
+ */
+export async function evaluateSystemOne(options: EvaluateSystemOneOptions): Promise<SystemOneResult> {
+  const apiKey = resolveApiKey(options.apiKey);
+  if (!apiKey) return { kind: "disabled" };
+
+  const timeoutMs = normalizeTimeoutMs(options.timeoutMs);
+  const request = options.fetch ?? globalThis.fetch;
+  const delay = options.delay ?? sleep;
+  const body = JSON.stringify({
+    state: options.state,
+    questions: options.questions,
+    model: resolveTypeSafeModel(options.model),
+  });
+  const startedAt = Date.now();
+  let lastStatus: number | undefined;
+
+  for (let attempt = 1; attempt <= TYPESAFE_MAX_ATTEMPTS; attempt += 1) {
+    const signal = AbortSignal.timeout(timeoutMs);
+    let response: Response;
+    try {
+      response = await raceAbort(request(TYPESAFE_SYSTEM_ONE_ENDPOINT, {
+        method: "POST",
+        headers: {
+          Authorization: `Bearer ${apiKey}`,
+          "content-type": "application/json",
+        },
+        body,
+        signal,
+      }), signal);
+    } catch {
+      return signal.aborted ? { kind: "unavailable", reason: "timeout" } : { kind: "unavailable", reason: "transport" };
+    }
+
+    if (response.ok) {
+      let payload: unknown;
+      try {
+        payload = await response.json();
+      } catch {
+        return signal.aborted ? { kind: "unavailable", reason: "timeout" } : { kind: "malformed", reason: "invalid_json" };
+      }
+      const envelope = EnvelopeSchema.safeParse(payload);
+      if (!envelope.success) return { kind: "malformed", reason: "invalid_envelope" };
+      const answers = validateAnswers(options.questions, envelope.data.answers);
+      if (!answers) return { kind: "malformed", reason: "invalid_envelope" };
+      const usage = parseUsage(envelope.data.usage);
+      return {
+        kind: "ok",
+        model: envelope.data.model,
+        answers,
+        ...(usage ? { usage } : {}),
+        latency_ms: Date.now() - startedAt,
+      };
+    }
+
+    lastStatus = response.status;
+    if (!RETRYABLE_STATUSES.includes(response.status) || attempt === TYPESAFE_MAX_ATTEMPTS) break;
+    await delay(retryDelayMs(response, attempt));
+  }
+
+  return { kind: "unavailable", reason: "http", status: lastStatus };
+}
+
+export type ThreeVerdict = "pass" | "needs-attention" | "needs-remediation";
+
+export type ThreeVerdictResult = {
+  kind: "ok";
+  verdict: ThreeVerdict;
+  confidence: number;
+  tamper: boolean;
+  /** The versioned model id that answered; thresholds are only valid for that version. */
+  model: string;
+  latency_ms: number;
+  usage?: TypeSafeUsage;
+  raw: unknown;
+};
+
+export type ThreeVerdictOutcome = ThreeVerdictResult | SystemOneDisabled | SystemOneUnavailable | SystemOneMalformed;
+
+export type EvaluateThreeVerdictOptions = {
+  model?: string;
+  apiKey?: string;
+  timeoutMs?: number;
+  fetch?: typeof globalThis.fetch;
+  delay?: (ms: number) => Promise<void>;
+};
+
+function hasDeterministicResult(criterion: SystemOneCriterion): boolean {
+  return criterion.status === "passed" || criterion.status === "failed";
+}
+
+function hasDeterministicFailure(criterion: SystemOneCriterion): boolean {
+  return criterion.status === "failed" || (typeof criterion.exit_code === "number" && criterion.exit_code !== 0);
+}
+
+function withPrompt(instructions: string, prompt?: string): string {
+  const trimmed = prompt?.trim();
+  return trimmed ? `${instructions} ${trimmed}` : instructions;
+}
+
+function criterionQuestion(index: number, criterion: SystemOneCriterion, prompt?: string): NoulQuestion {
+  const path = `criteria[${index}]`;
+  const label = criterion.description?.trim() || criterion.id;
+  return {
+    type: "noul",
+    instructions: withPrompt(
+      `Judge only whether the supplied evidence state at \`${path}\` satisfies this single criterion: "${label}". Use only \`${path}\` and do not infer unrecorded evidence.`,
+      prompt,
+    ),
+    criteria: {
+      true: `\`${path}\` satisfies the criterion "${label}".`,
+      false: `\`${path}\` does not satisfy the criterion "${label}", or records it as failed, blocked, or unverified.`,
+    },
+  };
+}
+
+function reportQuestion(instruction: string, satisfied: string, unsatisfied: string, prompt?: string): NoulQuestion {
+  return {
+    type: "noul",
+    instructions: withPrompt(instruction, prompt),
+    criteria: { true: satisfied, false: unsatisfied },
+  };
+}
+
+export function composeThreeVerdict(input: {
+  deterministicFailure: boolean;
+  criterionNouls: readonly number[];
+  reportNouls: readonly number[];
+}): ThreeVerdict {
+  if (input.deterministicFailure || input.criterionNouls.some((noul) => noul < REMEDIATION_THRESHOLD)) {
+    return "needs-remediation";
+  }
+  if (input.reportNouls.some((noul) => noul >= REPORT_FLAG_THRESHOLD)) return "needs-attention";
+  return input.criterionNouls.every((noul) => noul >= PASS_THRESHOLD) ? "pass" : "needs-attention";
+}
+
+/**
+ * Atomic three-verdict evaluation. Deterministic facts (a check that passed or
+ * failed, tamper) are never asked of the model; the model answers one Noul per
+ * remaining criterion plus the fixed report battery, and the verdict is
+ * composed in code from those answers and the deterministic state.
+ */
+export async function evaluateThreeVerdict(
+  state: SystemOneState,
+  prompt?: string,
+  options: EvaluateThreeVerdictOptions = {},
+): Promise<ThreeVerdictOutcome> {
+  const criteria = state.criteria ?? [];
+  const asked = criteria
+    .map((criterion, index) => ({ criterion, index, path: `criteria[${index}]` }))
+    .filter(({ criterion }) => !hasDeterministicResult(criterion));
+
+  const questions: Record<string, Question> = {};
+  for (const { criterion, index } of asked) {
+    questions[`criteria[${index}]`] = criterionQuestion(index, criterion, prompt);
+  }
+  questions[REPORT_QUESTIONS.work_incomplete] = reportQuestion(
+    "Judge only whether the supplied report states that its work is incomplete.",
+    "The report states the work is incomplete.", "The report does not state that the work is incomplete.", prompt,
+  );
+  questions[REPORT_QUESTIONS.names_blocker] = reportQuestion(
+    "Judge only whether the supplied report names a blocker.",
+    "The report names a specific blocker.", "The report names no blocker.", prompt,
+  );
+  questions[REPORT_QUESTIONS.claims_failed_check_passed] = reportQuestion(
+    "Judge only from the supplied state: does the report claim a check passed that the state records as failed?",
+    "The report claims a check passed that the state records as failed.", "The report makes no such claim.", prompt,
+  );
+
+  const response = await evaluateSystemOne({
+    state,
+    questions,
+    model: options.model,
+    apiKey: options.apiKey,
+    timeoutMs: options.timeoutMs,
+    fetch: options.fetch,
+    delay: options.delay,
+  });
+  if (response.kind !== "ok") return response;
+
+  // The envelope guarantees an answer for every asked question; an abstention
+  // default keeps an unexpected gap from reading as a positive signal.
+  const noulOf = (name: string): number => response.answers[name]?.noul ?? 0.5;
+  const criterionNouls = asked.map(({ path }) => noulOf(path));
+  const reportNouls = REPORT_QUESTION_NAMES.map((name) => noulOf(name));
+  const askedNouls = [...criterionNouls, ...reportNouls];
+
+  return {
+    kind: "ok",
+    verdict: composeThreeVerdict({
+      deterministicFailure: criteria.some(hasDeterministicFailure),
+      criterionNouls,
+      reportNouls,
+    }),
+    confidence: askedNouls.length === 0 ? 0 : Math.min(...askedNouls.map((noul) => Math.abs(noul - 0.5))) * 2,
+    tamper: state.tamper === true,
+    model: response.model,
+    latency_ms: response.latency_ms,
+    ...(response.usage ? { usage: response.usage } : {}),
+    raw: {
+      model: response.model,
+      answers: response.answers,
+      ...(response.usage ? { usage: response.usage } : {}),
+    },
+  };
+}
diff --git a/src/harness/usage.ts b/src/harness/usage.ts
index 4e23138..b15bfd8 100644
--- a/src/harness/usage.ts
+++ b/src/harness/usage.ts
@@ -3,21 +3,15 @@
  * the dashboard cost gauge).
  *
  * Adapters emit a `runtime.usage` event per run. Where the runtime reports real
- * token counts (e.g. hermes-proxy returns OpenAI-style `usage`), `source` is
- * "runtime". Where it does not (codex CLI, hermes CLI, oh-my-pi), we record a
- * deterministic estimate from prompt/output character length tagged
- * `source: "estimated"` so downstream consumers can weight or label it.
+ * token counts, `source` is "runtime". Adapters that cannot report usage may
+ * omit the event; consumers must preserve unknown facts rather than replacing
+ * them with an estimate.
  */
+import { RuntimeUsageSchema, type RuntimeResultDocument, type RuntimePricing } from "../schema/artifacts.js";
+import type { infer as Infer } from "zod";
 
-export type UsageSource = "runtime" | "estimated";
-
-export interface RuntimeUsage {
-  input_tokens: number;
-  output_tokens: number;
-  total_tokens: number;
-  source: UsageSource;
-  model?: string;
-}
+export type RuntimeUsage = Infer<typeof RuntimeUsageSchema>;
+export type UsageSource = RuntimeUsage["source"];
 
 /** ~4 characters per token — the standard rough heuristic for English/code. */
 const CHARS_PER_TOKEN = 4;
@@ -34,42 +28,43 @@ export function estimateUsage(promptText: string | undefined, outputText: string
   return { input_tokens: input, output_tokens: output, total_tokens: input + output, source: "estimated" };
 }
 
+export function isUsageNumber(value: unknown): value is number {
+  return typeof value === "number" && Number.isFinite(value) && value >= 0;
+}
+
 /**
  * Extract real usage from an OpenAI-style `usage` object
  * (`{ prompt_tokens, completion_tokens, total_tokens }`). Returns null when the
- * shape is absent or carries no token counts so callers can fall back to
- * {@link estimateUsage}.
+ * shape is absent or carries no token counts; missing counters remain unknown.
  */
 export function usageFromOpenAI(usage: unknown, model?: string): RuntimeUsage | null {
   if (!usage || typeof usage !== "object") return null;
   const u = usage as Record<string, unknown>;
-  const input = typeof u.prompt_tokens === "number" ? u.prompt_tokens : undefined;
-  const output = typeof u.completion_tokens === "number" ? u.completion_tokens : undefined;
-  if (input === undefined && output === undefined) return null;
-  const i = input ?? 0;
-  const o = output ?? 0;
-  const total = typeof u.total_tokens === "number" ? u.total_tokens : i + o;
-  const result: RuntimeUsage = { input_tokens: i, output_tokens: o, total_tokens: total, source: "runtime" };
-  if (model) result.model = model;
-  return result;
+  const input = isUsageNumber(u.prompt_tokens) ? u.prompt_tokens : undefined;
+  const output = isUsageNumber(u.completion_tokens) ? u.completion_tokens : undefined;
+  const total = isUsageNumber(u.total_tokens) ? u.total_tokens
+    : input !== undefined && output !== undefined ? input + output : undefined;
+  if (input === undefined && output === undefined && total === undefined) return null;
+  return { source: "runtime", input_tokens: input, output_tokens: output, total_tokens: total, ...(model ? { model } : {}) };
 }
 
 /**
  * Extract real usage from an Anthropic Messages-API `usage` object
  * (`{ input_tokens, output_tokens }`). Returns null when the shape is absent or
- * carries no token counts so callers can fall back to {@link estimateUsage}.
+ * carries no token counts; missing counters remain unknown.
  */
 export function usageFromAnthropic(usage: unknown, model?: string): RuntimeUsage | null {
   if (!usage || typeof usage !== "object") return null;
   const u = usage as Record<string, unknown>;
-  const input = typeof u.input_tokens === "number" ? u.input_tokens : undefined;
-  const output = typeof u.output_tokens === "number" ? u.output_tokens : undefined;
-  if (input === undefined && output === undefined) return null;
-  const i = input ?? 0;
-  const o = output ?? 0;
-  const result: RuntimeUsage = { input_tokens: i, output_tokens: o, total_tokens: i + o, source: "runtime" };
-  if (model) result.model = model;
-  return result;
+  const input = isUsageNumber(u.input_tokens) ? u.input_tokens : undefined;
+  const output = isUsageNumber(u.output_tokens) ? u.output_tokens : undefined;
+  const cacheRead = isUsageNumber(u.cache_read_input_tokens) ? u.cache_read_input_tokens : undefined;
+  const cacheWrite = isUsageNumber(u.cache_creation_input_tokens) ? u.cache_creation_input_tokens : undefined;
+  if (input === undefined && output === undefined && cacheRead === undefined && cacheWrite === undefined) return null;
+  const total = input !== undefined && output !== undefined && cacheRead !== undefined && cacheWrite !== undefined
+    ? input + output + cacheRead + cacheWrite : undefined;
+  return { source: "runtime", input_tokens: input, output_tokens: output, total_tokens: total,
+    cache_read_tokens: cacheRead, cache_write_tokens: cacheWrite, ...(model ? { model } : {}) };
 }
 
 /** Build a `runtime.usage` NDJSON event payload. */
@@ -84,11 +79,70 @@ export function buildUsageEvent(
     timestamp,
     runtime,
     mission_id: missionId,
-    input_tokens: usage.input_tokens,
-    output_tokens: usage.output_tokens,
-    total_tokens: usage.total_tokens,
     source: usage.source,
   };
+  if (usage.input_tokens !== undefined) event.input_tokens = usage.input_tokens;
+  if (usage.output_tokens !== undefined) event.output_tokens = usage.output_tokens;
+  if (usage.total_tokens !== undefined) event.total_tokens = usage.total_tokens;
   if (usage.model) event.model = usage.model;
+  if (usage.provider) event.provider = usage.provider;
+  if (usage.cache_read_tokens !== undefined) event.cache_read_tokens = usage.cache_read_tokens;
+  if (usage.cache_write_tokens !== undefined) event.cache_write_tokens = usage.cache_write_tokens;
+  if (usage.cost_usd !== undefined) event.cost_usd = usage.cost_usd;
+  if (usage.cost_basis) event.cost_basis = usage.cost_basis;
   return event;
 }
+
+export type RuntimeAccountingFacts = Pick<RuntimeResultDocument, "provider" | "model" | "usage" | "cost_usd" | "cost_basis">;
+
+/** Sum only complete measurements; heterogeneous routes do not erase known spend. */
+export function aggregateRuntimeUsage(results: Array<RuntimeAccountingFacts | undefined>): RuntimeAccountingFacts {
+  if (results.length === 0 || results.some(result => !result)) return {};
+  const complete = results as RuntimeAccountingFacts[];
+  const first = complete[0];
+  const facts: RuntimeAccountingFacts = {};
+  if (first.provider && complete.every(result => result.provider === first.provider)) facts.provider = first.provider;
+  if (first.model && complete.every(result => result.model === first.model)) facts.model = first.model;
+  const costs = complete.map(result => result.cost_usd ?? result.usage?.cost_usd);
+  if (costs.every(isUsageNumber)) {
+    const total = costs.reduce((sum, cost) => sum + cost, 0);
+    if (isUsageNumber(total)) {
+      facts.cost_usd = total;
+      const bases = complete.map(result => result.cost_basis ??
+        (result.cost_usd === undefined || result.cost_usd === result.usage?.cost_usd ? result.usage?.cost_basis : undefined));
+      if (bases.every(basis => basis !== undefined)) facts.cost_basis = bases.every(basis => basis === bases[0]) ? bases[0] : "mixed";
+    }
+  }
+  const usages = complete.map(result => result.usage);
+  if (usages.every((usage): usage is RuntimeUsage => usage !== undefined)) {
+    const usage: RuntimeUsage = { source: usages.some(item => item.source === "estimated") ? "estimated" : "runtime" };
+    if (facts.provider) usage.provider = facts.provider;
+    if (facts.model) usage.model = facts.model;
+    let measurements = 0;
+    for (const field of ["input_tokens", "output_tokens", "total_tokens", "cache_read_tokens", "cache_write_tokens"] as const) {
+      if (usages.every(item => isUsageNumber(item[field]))) {
+        const total = usages.reduce((sum, item) => sum + item[field]!, 0);
+        if (isUsageNumber(total)) { usage[field] = total; measurements++; }
+      }
+    }
+    if (facts.cost_usd !== undefined) {
+      usage.cost_usd = facts.cost_usd;
+      usage.cost_basis = facts.cost_basis;
+      measurements++;
+    }
+    if (measurements) facts.usage = usage;
+  }
+  return facts;
+}
+
+/** Price only complete measured counters against the exact observed model. */
+export function estimateConfiguredCost(usage: RuntimeUsage, model: string | undefined, pricing: RuntimePricing | undefined): number | undefined {
+  if (!pricing || model !== pricing.model || usage.source !== "runtime") return undefined;
+  const { input_tokens: input, output_tokens: output, cache_read_tokens: cacheRead, cache_write_tokens: cacheWrite } = usage;
+  if (!isUsageNumber(input) || !isUsageNumber(output) || !isUsageNumber(cacheRead) || !isUsageNumber(cacheWrite)) return undefined;
+  const uncached = input - (pricing.input_includes_cache_read ? cacheRead : 0) - (pricing.input_includes_cache_write ? cacheWrite : 0);
+  if (uncached < 0) return undefined;
+  const cost = (uncached * pricing.input_usd_per_million + output * pricing.output_usd_per_million
+    + cacheRead * pricing.cache_read_usd_per_million + cacheWrite * pricing.cache_write_usd_per_million) / 1_000_000;
+  return isUsageNumber(cost) ? cost : undefined;
+}
diff --git a/src/harness/validate.ts b/src/harness/validate.ts
index dfb9070..f217b4e 100644
--- a/src/harness/validate.ts
+++ b/src/harness/validate.ts
@@ -14,6 +14,11 @@ import {
   validateSkillsIndex,
   validateVerificationResult,
 } from "../schema/artifacts.js";
+import { RuntimeControlSchema, RuntimeRecoveryRecordSchema, RuntimeCancelRequestSchema } from "../schema/runtime-control.js";
+import { CanonicalTeamStateSchema } from "../schema/team.js";
+import { LatestRunPointerSchema, RunsIndexSchema } from "../schema/runs.js";
+import { IndependentReviewRequestSchema, IndependentReviewReportSchema, IndependentReviewAssessmentSchema } from "../schema/independent-review.js";
+import { validateDecisionReceipt } from "../schema/decisions.js";
 
 const SCHEMA_DISPATCH: Record<string, (data: unknown) => unknown> = {
   "uh.project.v0": validateProject,
@@ -26,6 +31,16 @@ const SCHEMA_DISPATCH: Record<string, (data: unknown) => unknown> = {
   "uh.promotion.v0": validatePromotion,
   "uh.runtime-session.v0": validateRuntimeSession,
   "uh.runtime-result.v0": validateRuntimeResult,
+  "uh.runtime-control.v0": data => RuntimeControlSchema.parse(data),
+  "uh.runtime-recovery.v0": data => RuntimeRecoveryRecordSchema.parse(data),
+  "uh.runtime-cancel-request.v0": data => RuntimeCancelRequestSchema.parse(data),
+  "uh.team-run.v0": data => CanonicalTeamStateSchema.parse(data),
+  "uh.latest-run.v0": data => LatestRunPointerSchema.parse(data),
+  "uh.runs-index.v0": data => RunsIndexSchema.parse(data),
+  "uh.independent-review-request.v0": data => IndependentReviewRequestSchema.parse(data),
+  "uh.independent-review-report.v0": data => IndependentReviewReportSchema.parse(data),
+  "uh.independent-review-assessment.v0": data => IndependentReviewAssessmentSchema.parse(data),
+  "uh.decision-receipt.v0": validateDecisionReceipt,
 };
 
 export type ValidationResult = {
diff --git a/src/harness/verify.ts b/src/harness/verify.ts
index 14063be..5d0398f 100644
--- a/src/harness/verify.ts
+++ b/src/harness/verify.ts
@@ -1,20 +1,46 @@
 import { access, appendFile, lstat, readFile, realpath, writeFile } from "node:fs/promises";
-import { spawn } from "node:child_process";
+import { execFileSync, spawn } from "node:child_process";
 import path from "node:path";
 import { parse, stringify } from "yaml";
 import { validateMission, type MissionDocument } from "../schema/mission.js";
 import { validateVerificationResult, type VerificationResultDocument } from "../schema/artifacts.js";
+import { RuntimeControlSchema } from "../schema/runtime-control.js";
 import { promoteMission } from "./promote.js";
-import { harnessDir, missionsDir, projectYaml, sandboxesDir, sandboxesIndex } from "./paths.js";
+import { harnessDir, missionsDir, projectYaml } from "./paths.js";
 import { validateFile } from "./validate.js";
-import { SandboxesIndexSchema } from "../schema/artifacts.js";
 import { classifyDiff } from "./diff-classifier.js";
 import { runOpenSandboxCommand, type SandboxCommandRunResult } from "./sandbox-backends.js";
+import { findBoundSandbox } from "./sandbox.js";
+import { verifyExpectedArtifact } from "./output-verification.js";
+import { collectIndependentReview } from "./independent-review.js";
+import { recordAcceptanceDecision } from "./decision-receipts.js";
+import { readLatestPointer } from "./run-id.js";
+import { relativeArtifactPath } from "./artifact-paths.js";
+import type { SystemOneCriterion } from "./typesafe.js";
+import { isDeepStrictEqual } from "node:util";
 
 const SNIPPET_LIMIT = 800;
 const TIMEOUT_KILL_GRACE_MS = 100;
 export const DEFAULT_VERIFY_COMMAND_TIMEOUT_MS = 30_000;
 
+/**
+ * The harness-established facts a non-deterministic acceptance criterion may
+ * expose to System One: declared expected-output paths and statuses, and the
+ * names and statuses of the required checks. Never file contents, diff text,
+ * command output, absolute paths, or the mission prompt.
+ */
+type CriterionEvidence = {
+  expected_outputs: Array<{ path: string; status: string }>;
+  required_checks: Array<{ name: string; status: string }>;
+};
+
+/**
+ * The per-criterion projection `evaluateThreeVerdict` consumes. The shared
+ * `SystemOneCriterion` contract has no field for `evidence`, so this local
+ * intersection carries it without widening the shared contract.
+ */
+type ProjectedCriterion = SystemOneCriterion & { evidence?: CriterionEvidence };
+
 export type VerifyMissionOptions = {
   commandTimeoutMs?: number;
   /**
@@ -53,6 +79,7 @@ export type VerifyMissionResult = {
   promotion_error?: string;
 };
 
+
 export async function verifyMission(root: string, missionId: string, options: VerifyMissionOptions = {}): Promise<VerifyMissionResult> {
   assertSafeMissionId(missionId);
   const commandTimeoutMs = normalizeCommandTimeoutMs(options.commandTimeoutMs);
@@ -95,6 +122,14 @@ export async function verifyMission(root: string, missionId: string, options: Ve
   if (mission.id !== missionId) {
     throw new Error(`Mission id mismatch: expected ${missionId}, got ${mission.id}`);
   }
+  const canonicalMissionPath = path.resolve(missionsDir(projectRoot), missionId, "mission.yaml");
+  const canonicalMission = effectiveRoot === projectRoot ? mission :
+    (await fileExists(canonicalMissionPath) ? await readMissionAtLocation(canonicalMissionPath) : undefined);
+  if (canonicalMission?.independent_review || mission.independent_review) {
+    if (!canonicalMission?.independent_review || !isDeepStrictEqual(canonicalMission, mission)) {
+      throw new Error("Independent review contract differs from its canonical mission");
+    }
+  }
 
   // UH-130: `constraints[]` is accepted on the mission packet but the harness
   // never enforces it — only `verification.required_checks[].command` and
@@ -111,6 +146,8 @@ export async function verifyMission(root: string, missionId: string, options: Ve
 
   const checks: VerificationResultDocument["checks"] = [];
   const findings: NonNullable<VerificationResultDocument["findings"]> = [];
+  const requiredCheckEvidence: Array<{ name: string; status: string }> = [];
+  const expectedOutputEvidence: Array<{ path: string; status: string }> = [];
   let executableChecks = 0;
 
   for (const check of mission.verification.required_checks) {
@@ -121,12 +158,14 @@ export async function verifyMission(root: string, missionId: string, options: Ve
         status: "blocked",
         notes: "no command configured",
       });
+      requiredCheckEvidence.push({ name: check.name, status: "blocked" });
       continue;
     }
 
     executableChecks += 1;
     const executed = await runCheck(effectiveRoot, check.name, check.command, commandTimeoutMs, sandboxRunner);
     checks.push(executed.check);
+    requiredCheckEvidence.push({ name: check.name, status: executed.check.status });
     if (executed.finding) {
       findings.push(executed.finding);
     }
@@ -192,6 +231,24 @@ export async function verifyMission(root: string, missionId: string, options: Ve
     });
   }
 
+  for (const expected of mission.expected_artifacts) {
+    const checked = await verifyExpectedArtifact(effectiveRoot, expected);
+    checks.push(checked);
+    executableChecks++;
+    expectedOutputEvidence.push({ path: relativeArtifactPath(effectiveRoot, path.resolve(effectiveRoot, expected.path)), status: checked.status });
+    if (checked.status !== "passed") findings.push({ severity: "error", message: `Required output failed verification: ${expected.path}` });
+  }
+  if (canonicalMission?.independent_review) {
+    executableChecks++;
+    try {
+      await collectIndependentReview(projectRoot, missionId);
+      checks.push({ name: "independent-review-evidence", type: "artifact", status: "passed", notes: "Advisory report validated; human acceptance remains required" });
+    } catch (error) {
+      checks.push({ name: "independent-review-evidence", type: "artifact", status: "failed", notes: (error as Error).message });
+      findings.push({ severity: "error", message: "Independent review provenance or evidence is invalid" });
+    }
+  }
+
   // UH-55 TDD gate. When the mission opts in, classify the captured diff
   // and add a synthetic acceptance_criteria entry that blocks the run on
   // a tests-absent change. Treated as a regular AC for status escalation
@@ -262,7 +319,7 @@ export async function verifyMission(root: string, missionId: string, options: Ve
 
   const anyBlockingAcFailed = acceptanceResults.some((r) => r.severity === "block" && r.status === "failed");
   const anyBlockingAcUnverified = acceptanceResults.some((r) => r.severity === "block" && r.status === "blocked");
-  const status: VerificationResultDocument["status"] = anyBlockingAcFailed || checks.some((check) => check.status === "failed")
+  let status: VerificationResultDocument["status"] = anyBlockingAcFailed || checks.some((check) => check.status === "failed")
     ? "failed"
     : anyBlockingAcUnverified
       ? "blocked"
@@ -270,6 +327,66 @@ export async function verifyMission(root: string, missionId: string, options: Ve
         ? "passed"
         : "blocked";
 
+  // UH progressive decisions: hand System One one atomic entry per declared
+  // acceptance criterion. A criterion the harness already decided carries its
+  // deterministic status and is never asked of the provider; the rest carry
+  // only evidence the harness established. `tamper` is a deterministic fact,
+  // never a provider answer.
+  const acceptanceById = new Map(acceptanceResults.map((result) => [result.id, result]));
+  const criteria: ProjectedCriterion[] = mission.acceptance_criteria.map((ac) => {
+    const result = acceptanceById.get(ac.id);
+    if (ac.check_command) {
+      return {
+        id: ac.id,
+        status: result?.status === "passed" ? "passed" : "failed",
+        exit_code: result?.exit_code,
+        check_command: ac.check_command,
+      };
+    }
+    return {
+      id: ac.id,
+      description: ac.description,
+      ...(ac.severity ? { severity: ac.severity } : {}),
+      evidence: {
+        expected_outputs: expectedOutputEvidence,
+        required_checks: requiredCheckEvidence,
+      },
+    };
+  });
+  const tamper = await readRunControlPolicyStop(effectiveRoot, missionId);
+
+  await recordAcceptanceDecision({
+    missionDir, missionId, consumer: "verification", from: status,
+    state: {
+      contract: {
+        acceptance_criteria: acceptanceResults.map(result => ({
+          id: result.id, description: result.description, severity: result.severity,
+        })),
+        human_review_required: mission.verification.review_gates.length > 0,
+      },
+      outputs: {
+        status,
+        checks: checks.map(check => ({ type: check.type, status: check.status })),
+        acceptance_criteria: acceptanceResults.map(result => ({
+          id: result.id, status: result.status, exit_code: result.exit_code,
+        })),
+        findings: findings.map(finding => ({ severity: finding.severity })),
+      },
+      criteria,
+      tamper,
+    },
+    prompt: "Assess consistency of the verification disposition with the supplied check and acceptance summaries. Raw outputs and source diffs are not included; do not infer that unreported checks or scope protections passed.",
+    apply: gate => {
+      const blocked = gate.tamper || gate.verdict === "needs-remediation";
+      findings.push({
+        severity: blocked ? "error" : "warning",
+        message: `TypeSafe System One verdict: ${gate.verdict}${gate.tamper ? " (tamper detected)" : ""}`,
+      });
+      if (blocked) status = "failed";
+      return status;
+    },
+  });
+
   const artifact: VerificationResultDocument = validateVerificationResult({
     schema_version: "uh.verification-result.v0",
     mission_id: missionId,
@@ -349,43 +466,6 @@ export async function verifyMission(root: string, missionId: string, options: Ve
   };
 }
 
-export async function findBoundSandbox(
-  projectRoot: string,
-  missionId: string,
-): Promise<{ id: string; path: string; backend: string } | null> {
-  const indexPath = sandboxesIndex(projectRoot);
-  if (!(await fileExists(indexPath))) {
-    return null;
-  }
-  let raw: string;
-  try {
-    raw = await readFile(indexPath, "utf-8");
-  } catch {
-    return null;
-  }
-  let parsed: unknown;
-  try {
-    parsed = parse(raw);
-  } catch {
-    return null;
-  }
-  const result = SandboxesIndexSchema.safeParse(parsed);
-  if (!result.success) {
-    return null;
-  }
-  const sandboxesRoot = path.resolve(sandboxesDir(projectRoot));
-  const candidates = result.data.sandboxes
-    .filter((entry) => entry.mission_id === missionId && entry.status !== "discarded" && typeof entry.path === "string" && entry.path.length > 0)
-    .sort((a, b) => (b.updated_at ?? "").localeCompare(a.updated_at ?? ""));
-  for (const candidate of candidates) {
-    if (!candidate.path) continue;
-    const abs = path.resolve(projectRoot, candidate.path);
-    if (!isPathWithin(abs, sandboxesRoot)) continue;
-    if (!(await fileExists(abs))) continue;
-    return { id: candidate.id, path: abs, backend: candidate.backend };
-  }
-  return null;
-}
 
 /**
  * UH-130: surface that mission `constraints[]` are advisory-only. The harness
@@ -415,6 +495,24 @@ async function readMissionAtLocation(missionPath: string): Promise<MissionDocume
   return validateMission(parse(await readFile(missionPath, "utf-8")));
 }
 
+/**
+ * Deterministic tamper fact for System One: the latest run control receipt
+ * stopped with the `policy` stop code (a Tool Guard, protected-path, or
+ * containment stop). No provider input contributes, and a missing or
+ * unreadable receipt is not tamper.
+ */
+async function readRunControlPolicyStop(root: string, missionId: string): Promise<boolean> {
+  const latest = await readLatestPointer(root, missionId);
+  if (!latest) return false;
+  try {
+    const controlPath = path.join(missionsDir(root), missionId, "runs", latest.run_id, "runtime-control.json");
+    const control = RuntimeControlSchema.parse(JSON.parse(await readFile(controlPath, "utf-8")));
+    return control.stop_code === "policy";
+  } catch {
+    return false;
+  }
+}
+
 type CommandRunMetrics = SandboxCommandRunResult;
 
 interface HostCommandRunMetrics {
@@ -431,7 +529,8 @@ async function runCommand(root: string, command: string, commandTimeoutMs: numbe
     const startedAt = Date.now();
     const child = spawn(command, {
       cwd: root,
-      detached: true,
+      detached: process.platform !== "win32",
+      windowsHide: true,
       shell: true,
       stdio: ["ignore", "pipe", "pipe"],
     });
@@ -453,6 +552,18 @@ async function runCommand(root: string, command: string, commandTimeoutMs: numbe
     };
     const killChild = (signal: NodeJS.Signals) => {
       if (child.pid === undefined) return;
+      if (process.platform === "win32") {
+        try {
+          execFileSync("taskkill.exe", ["/PID", String(child.pid), "/T", "/F"], {
+            stdio: "ignore",
+            windowsHide: true,
+          });
+          return;
+        } catch {
+          try { child.kill(signal); } catch { /* child already exited */ }
+          return;
+        }
+      }
       try { process.kill(-child.pid, signal); } catch {
         try { child.kill(signal); } catch { /* best effort */ }
       }
diff --git a/src/harness/windows-job.cs b/src/harness/windows-job.cs
new file mode 100644
index 0000000..460fc27
--- /dev/null
+++ b/src/harness/windows-job.cs
@@ -0,0 +1,134 @@
+using System;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.ComponentModel;
+public static class UHJob {
+  [StructLayout(LayoutKind.Sequential)] struct IO { public ulong ReadOperationCount, WriteOperationCount, OtherOperationCount, ReadTransferCount, WriteTransferCount, OtherTransferCount; }
+  [StructLayout(LayoutKind.Sequential)] struct BASIC { public long PerProcessUserTimeLimit, PerJobUserTimeLimit; public uint LimitFlags; public UIntPtr MinimumWorkingSetSize, MaximumWorkingSetSize; public uint ActiveProcessLimit; public UIntPtr Affinity; public uint PriorityClass, SchedulingClass; }
+  [StructLayout(LayoutKind.Sequential)] struct LIMIT { public BASIC BasicLimitInformation; public IO IoInfo; public UIntPtr ProcessMemoryLimit, JobMemoryLimit, PeakProcessMemoryUsed, PeakJobMemoryUsed; }
+  [StructLayout(LayoutKind.Sequential)] struct ACCOUNTING { public long TotalUserTime, TotalKernelTime, ThisPeriodTotalUserTime, ThisPeriodTotalKernelTime; public uint TotalPageFaultCount, TotalProcesses, ActiveProcesses, TotalTerminatedProcesses; }
+  [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)] struct STARTUP { public uint cb; public string reserved, desktop, title; public uint x,y,xSize,ySize,xCount,yCount,fill,flags; public ushort show, reservedSize; public IntPtr reservedBytes, stdin, stdout, stderr; }
+  [StructLayout(LayoutKind.Sequential)] struct PROCESS { public IntPtr process, thread; public uint pid, tid; }
+  [DllImport("kernel32.dll", CharSet=CharSet.Unicode, SetLastError=true)] static extern IntPtr CreateJobObject(IntPtr attributes, string name);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool SetInformationJobObject(IntPtr job, int kind, ref LIMIT info, uint size);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool QueryInformationJobObject(IntPtr job, int kind, ref LIMIT info, uint size, IntPtr length);
+  [DllImport("kernel32.dll", EntryPoint="QueryInformationJobObject", SetLastError=true)] static extern bool QueryAccounting(IntPtr job, int kind, ref ACCOUNTING info, uint size, IntPtr length);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool AssignProcessToJobObject(IntPtr job, IntPtr process);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool TerminateJobObject(IntPtr job, uint code);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool TerminateProcess(IntPtr process, uint code);
+  [DllImport("kernel32.dll", CharSet=CharSet.Unicode, SetLastError=true)] static extern bool CreateProcess(string app, StringBuilder command, IntPtr pa, IntPtr ta, bool inherit, uint flags, IntPtr environment, string cwd, ref STARTUP startup, out PROCESS process);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern uint ResumeThread(IntPtr thread);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern uint WaitForMultipleObjects(uint count, IntPtr[] handles, bool all, uint milliseconds);
+  [DllImport("kernel32.dll", SetLastError=true)] static extern bool GetExitCodeProcess(IntPtr process, out uint code);
+  [DllImport("kernel32.dll")] static extern IntPtr GetStdHandle(int which);
+  [DllImport("kernel32.dll")] static extern bool CloseHandle(IntPtr handle);
+  static void Check(bool ok) { if (!ok) throw new Win32Exception(Marshal.GetLastWin32Error()); }
+  // Normalize separators before applying the verbatim prefix.
+  static string ExtendedPath(string value) {
+    value = value.Replace('/', '\\');
+    if (value.StartsWith(@"\\?\", StringComparison.OrdinalIgnoreCase)) return value;
+    if (value.StartsWith(@"\\", StringComparison.Ordinal)) return @"\\?\UNC\" + value.Substring(2);
+    if (value.Length >= 3 && value[1] == ':' && (value[2] == '\\' || value[2] == '/')) return @"\\?\" + value;
+    return value;
+  }
+  static string Quote(string arg) {
+    StringBuilder result = new StringBuilder("\""); int slashes = 0;
+    foreach(char ch in arg) {
+      if (ch == '\\') { slashes++; continue; }
+      if (ch == '"') { result.Append('\\', slashes * 2 + 1); result.Append(ch); slashes = 0; continue; }
+      result.Append('\\', slashes); slashes = 0; result.Append(ch);
+    }
+    result.Append('\\', slashes * 2); result.Append('"'); return result.ToString();
+  }
+  public static long PeakMemory;
+  public static bool ParentLost;
+  public static uint Run(string command, string[] args, string cwd, IntPtr parent, ulong memoryBytes, string stopPath) {
+    stopPath = ExtendedPath(stopPath);
+    IntPtr job = IntPtr.Zero; PROCESS child = new PROCESS();
+    try {
+      job = CreateJobObject(IntPtr.Zero, null); Check(job != IntPtr.Zero);
+      LIMIT limit = new LIMIT(); limit.BasicLimitInformation.LimitFlags = 0x2000;
+      if (memoryBytes > 0) { limit.BasicLimitInformation.LimitFlags |= 0x200; limit.JobMemoryLimit = new UIntPtr(memoryBytes); }
+      Check(SetInformationJobObject(job, 9, ref limit, (uint)Marshal.SizeOf(typeof(LIMIT))));
+      if (WaitForMultipleObjects(1, new IntPtr[] { parent }, false, 0) == 0) { ParentLost = true; return 125; }
+      if (System.IO.File.Exists(stopPath)) return 130;
+      STARTUP startup = new STARTUP(); startup.cb = (uint)Marshal.SizeOf(typeof(STARTUP)); startup.flags = 0x100;
+      startup.stdin = GetStdHandle(-10); startup.stdout = GetStdHandle(-11); startup.stderr = GetStdHandle(-12);
+      StringBuilder line = new StringBuilder(Quote(command)); foreach(string arg in args) { line.Append(' '); line.Append(Quote(arg)); }
+      Check(CreateProcess(null, line, IntPtr.Zero, IntPtr.Zero, true, 4 | 0x08000000, IntPtr.Zero, cwd, ref startup, out child));
+      Check(AssignProcessToJobObject(job, child.process));
+      Check(ResumeThread(child.thread) != 0xffffffff);
+      uint waited;
+      do { waited = WaitForMultipleObjects(2, new IntPtr[] { child.process, parent }, false, 100); }
+      while (waited == 258 && !System.IO.File.Exists(stopPath));
+      ParentLost = waited == 1;
+      uint exit = ParentLost ? 125u : 130u;
+      if (waited == 0) Check(GetExitCodeProcess(child.process, out exit));
+      else Check(waited == 1 || waited == 258);
+      Check(QueryInformationJobObject(job, 9, ref limit, (uint)Marshal.SizeOf(typeof(LIMIT)), IntPtr.Zero));
+      PeakMemory = (long)limit.PeakJobMemoryUsed.ToUInt64();
+      Check(TerminateJobObject(job, exit));
+      ACCOUNTING accounting = new ACCOUNTING();
+      for (int remaining = 1000; remaining > 0; remaining--) {
+        Check(QueryAccounting(job, 1, ref accounting, (uint)Marshal.SizeOf(typeof(ACCOUNTING)), IntPtr.Zero));
+        if (accounting.ActiveProcesses == 0) return exit;
+        System.Threading.Thread.Sleep(10);
+      }
+      throw new TimeoutException("Owned Windows job did not settle");
+    } finally {
+      if (job != IntPtr.Zero) { TerminateJobObject(job, 125); CloseHandle(job); }
+      if (child.process != IntPtr.Zero) { TerminateProcess(child.process, 125); CloseHandle(child.process); }
+      if (child.thread != IntPtr.Zero) CloseHandle(child.thread);
+    }
+  }
+
+  static void WriteAtomicJson(string destination, object value, System.Web.Script.Serialization.JavaScriptSerializer json) {
+    string temporary = destination + "." + Guid.NewGuid().ToString("N") + ".tmp";
+    try {
+      byte[] bytes = new UTF8Encoding(false).GetBytes(json.Serialize(value));
+      using (var file = new System.IO.FileStream(temporary, System.IO.FileMode.CreateNew, System.IO.FileAccess.Write)) {
+        file.Write(bytes, 0, bytes.Length); file.Flush(true);
+      }
+      if (System.IO.File.Exists(destination)) System.IO.File.Replace(temporary, destination, null);
+      else System.IO.File.Move(temporary, destination);
+    } finally { if (System.IO.File.Exists(temporary)) System.IO.File.Delete(temporary); }
+  }
+  public static int Main() {
+    try {
+      var json = new System.Web.Script.Serialization.JavaScriptSerializer();
+      json.MaxJsonLength = 64 * 1024 * 1024;
+      System.Collections.Generic.Dictionary<string, object> spec;
+      using (var input = new System.IO.StreamReader(Console.OpenStandardInput(), new UTF8Encoding(false), false, 1024, true)) {
+        spec = (System.Collections.Generic.Dictionary<string, object>)json.DeserializeObject(input.ReadToEnd());
+      }
+      int parentPid = Convert.ToInt32(spec["parentPid"]);
+      using (var controller = System.Diagnostics.Process.GetProcessById(parentPid)) {
+        IntPtr parent = controller.Handle;
+        string[] args = Array.ConvertAll((object[])spec["args"], value => Convert.ToString(value));
+        string stopPath = ExtendedPath((string)spec["stopPath"]);
+        string resultPath = ExtendedPath((string)spec["resultPath"]);
+        object controlPathObject;
+        string controlPath = null;
+        if (spec.TryGetValue("controlPath", out controlPathObject) && controlPathObject != null) controlPath = ExtendedPath((string)controlPathObject);
+        uint code = Run((string)spec["command"], args, (string)spec["cwd"], parent, Convert.ToUInt64(spec["memoryBytes"]), stopPath);
+        WriteAtomicJson(resultPath, new { exit_code = code, peak_memory_bytes = PeakMemory, controller_lost = ParentLost, settled = true }, json);
+        if (ParentLost && controlPath != null && System.IO.File.Exists(controlPath)) {
+          var control = (System.Collections.Generic.Dictionary<string, object>)json.DeserializeObject(System.IO.File.ReadAllText(controlPath));
+          if (Convert.ToInt32(control["controller_pid"]) == parentPid && (string)control["status"] == "running") {
+            control["status"] = "failed";
+            control["heartbeat_at"] = DateTime.UtcNow.ToString("o");
+            control["stop_reason"] = "Controller exited before run settlement; its Windows job was terminated";
+            control["stop_code"] = "controller_lost";
+            control["settlement_confirmed"] = true;
+            control["peak_memory_bytes"] = PeakMemory;
+            WriteAtomicJson(controlPath, control, json);
+          }
+        }
+        return unchecked((int)code);
+      }
+    } catch (Exception error) {
+      Console.Error.WriteLine("UH Windows job failed: " + error.Message);
+      return 125;
+    }
+  }
+}
diff --git a/src/harness/windows-job.ps1 b/src/harness/windows-job.ps1
new file mode 100644
index 0000000..78c6fba
--- /dev/null
+++ b/src/harness/windows-job.ps1
@@ -0,0 +1,4 @@
+param([Parameter(Mandatory=$true)][string]$Source, [Parameter(Mandatory=$true)][string]$Output)
+$ErrorActionPreference = 'Stop'
+# PowerShell is only the compiler; the detached native guardian owns and settles the job.
+Add-Type -Path $Source -OutputAssembly $Output -OutputType ConsoleApplication -ReferencedAssemblies System.dll,System.Core.dll,System.Web.Extensions.dll
diff --git a/src/schema/acceptance.ts b/src/schema/acceptance.ts
new file mode 100644
index 0000000..fc8c341
--- /dev/null
+++ b/src/schema/acceptance.ts
@@ -0,0 +1,76 @@
+import { z } from "zod";
+
+const RelativePathSchema = z.string().min(1).refine((value) => !value.startsWith("/") && !/^[A-Za-z]:[\\/]/.test(value) && !value.split(/[\\/]/).includes(".."), "path must be relative to its owner");
+
+const AcceptanceWorkerExpectedSchema = z.object({
+  status: z.string().min(1),
+  blocked_reason: z.string().min(1).optional(),
+  admission_blocked_reason: z.string().min(1).optional(),
+}).strict();
+
+const AcceptanceFactSourceSchema = z.enum(["first", "last"]);
+
+export const AcceptanceExpectedSchema = z.object({
+  status: z.string().min(1),
+  stop_code: z.string().min(1).optional(),
+  resumed: z.boolean().optional(),
+  required_files: z.array(RelativePathSchema).optional(),
+  required_records: z.record(z.string(), z.unknown()).optional(),
+  workers: z.record(z.string(), AcceptanceWorkerExpectedSchema).optional(),
+  outputs: z.record(z.string(), z.string().min(1)).optional(),
+  settlement_confirmed: z.boolean().optional(),
+  guardian_receipt: z.boolean().optional(),
+  path_style: z.literal("forward_slashes").optional(),
+  fact_sources: z.record(z.string(), AcceptanceFactSourceSchema).optional(),
+}).strict();
+export type AcceptanceExpected = z.infer<typeof AcceptanceExpectedSchema>;
+
+export const AcceptanceRegistryEntrySchema = z.object({
+  title: z.string().min(1),
+  capability: z.string().min(1),
+  mission: RelativePathSchema,
+  shape: z.enum(["single", "team"]),
+  runtime: z.string().min(1),
+  model: z.string().min(1).optional(),
+  real_mission: z.enum(["real", "not_applicable"]).default("real"),
+  reason: z.string().default(""),
+  expected: AcceptanceExpectedSchema,
+  freshness_days: z.number().int().positive().default(30),
+  notes: z.string().default(""),
+}).strict();
+export type AcceptanceRegistryEntry = z.infer<typeof AcceptanceRegistryEntrySchema>;
+
+export const AcceptanceRegistrySchema = z.object({
+  schema_version: z.literal("uh.acceptance-registry.v0"),
+  entries: z.record(z.string().min(1), AcceptanceRegistryEntrySchema),
+}).strict();
+export type AcceptanceRegistry = z.infer<typeof AcceptanceRegistrySchema>;
+
+export const AcceptanceMismatchSchema = z.object({
+  field: z.string().min(1),
+  expected: z.unknown(),
+  observed: z.unknown().optional(),
+}).strict();
+export const AcceptanceEvidenceSchema = z.object({
+  schema_version: z.literal("uh.acceptance-evidence.v0"),
+  capability: z.string().min(1),
+  outcome: z.enum(["passed", "failed"]),
+  checked_at: z.string().datetime(),
+  harness_commit: z.string().min(1),
+  runtime: z.string().min(1),
+  provider: z.string().min(1),
+  model: z.string().min(1),
+  cost_usd: z.union([z.number().nonnegative(), z.literal("unknown")]),
+  workspace: RelativePathSchema.or(z.string().min(1)),
+  run_ids: z.array(z.string().min(1)),
+  mission_id: z.string().min(1),
+  expected: AcceptanceExpectedSchema,
+  observed: z.record(z.string(), z.unknown()),
+  fact_sources: z.record(z.string(), z.string().min(1)),
+  mismatches: z.array(AcceptanceMismatchSchema),
+  artifact_root: z.string().min(1),
+}).strict();
+export type AcceptanceEvidence = z.infer<typeof AcceptanceEvidenceSchema>;
+
+export function validateAcceptanceRegistry(value: unknown): AcceptanceRegistry { return AcceptanceRegistrySchema.parse(value); }
+export function validateAcceptanceEvidence(value: unknown): AcceptanceEvidence { return AcceptanceEvidenceSchema.parse(value); }
diff --git a/src/schema/acp.ts b/src/schema/acp.ts
new file mode 100644
index 0000000..5b5fd08
--- /dev/null
+++ b/src/schema/acp.ts
@@ -0,0 +1,128 @@
+import { z } from "zod";
+
+/**
+ * Agent-Client Protocol (ACP) v1 wire schemas.
+ *
+ * ACP is bidirectional JSON-RPC 2.0 over stdio. The client (`ultimate-harness`)
+ * starts the agent server, drives the `initialize` → `session/new` →
+ * `session/prompt` lifecycle, and must also answer the agent's own requests
+ * (`session/request_permission`, `fs/*`, `terminal/*`) so the agent never
+ * stalls. These schemas are applied to every untrusted agent payload — the
+ * wire format is camelCase with an integer major `protocolVersion`.
+ *
+ * Reference: Agent Client Protocol v1 — Initialization, Session Setup, Prompt Turn.
+ */
+
+/** ACP majors the protocol version as a single integer (e.g. `1`). */
+export const AcpProtocolVersionSchema = z.number().int().positive();
+
+export const AcpJsonRpcErrorSchema = z.object({
+  code: z.number().int(),
+  message: z.string(),
+  data: z.unknown().optional(),
+}).strict();
+
+export const AcpJsonRpcRequestSchema = z.object({
+  jsonrpc: z.literal("2.0"),
+  id: z.union([z.string(), z.number()]),
+  method: z.string().min(1),
+  params: z.record(z.string(), z.unknown()).optional(),
+}).strict();
+
+export const AcpJsonRpcNotificationSchema = z.object({
+  jsonrpc: z.literal("2.0"),
+  method: z.string().min(1),
+  params: z.record(z.string(), z.unknown()).optional(),
+}).strict();
+
+/**
+ * A JSON-RPC 2.0 response. Exactly one of `result`/`error` must be present;
+ * a response carries no `method`.
+ */
+export const AcpJsonRpcResponseSchema = z.object({
+  jsonrpc: z.literal("2.0"),
+  id: z.union([z.string(), z.number(), z.null()]),
+  result: z.unknown().optional(),
+  error: AcpJsonRpcErrorSchema.optional(),
+}).superRefine((message, ctx) => {
+  if (message.result !== undefined && message.error !== undefined) {
+    ctx.addIssue({ code: "custom", message: "JSON-RPC response cannot carry both result and error" });
+  }
+  if (message.result === undefined && message.error === undefined) {
+    ctx.addIssue({ code: "custom", message: "JSON-RPC response must carry result or error" });
+  }
+});
+
+/** ACP content blocks; `text` blocks carry the prompt and streamed agent text. */
+export const AcpContentBlockSchema = z.object({
+  type: z.string().min(1),
+  text: z.string().optional(),
+}).passthrough();
+
+export const AcpClientInfoSchema = z.object({
+  name: z.string().min(1),
+  title: z.string().optional(),
+  version: z.string().optional(),
+}).strict();
+
+export const AcpInitializeResultSchema = z.object({
+  protocolVersion: AcpProtocolVersionSchema.optional(),
+  agentInfo: z.object({
+    name: z.string().min(1),
+    title: z.string().optional(),
+    version: z.string().optional(),
+  }).passthrough().optional(),
+  agentCapabilities: z.record(z.string(), z.unknown()).optional(),
+  authMethods: z.array(z.unknown()).optional(),
+}).passthrough();
+
+export const AcpSessionNewResultSchema = z.object({
+  sessionId: z.string().min(1),
+}).passthrough();
+
+/** ACP v1 prompt-turn stop reasons (distinct from the harness result statuses). */
+export const AcpStopReasonSchema = z.enum([
+  "end_turn",
+  "max_tokens",
+  "max_turn_requests",
+  "refusal",
+  "cancelled",
+]);
+export type AcpStopReason = z.infer<typeof AcpStopReasonSchema>;
+
+export const AcpPromptUsageSchema = z.object({
+  inputTokens: z.number().nonnegative().optional(),
+  outputTokens: z.number().nonnegative().optional(),
+  totalTokens: z.number().nonnegative().optional(),
+}).passthrough();
+
+export const AcpSessionPromptResultSchema = z.object({
+  stopReason: AcpStopReasonSchema.default("end_turn"),
+  usage: AcpPromptUsageSchema.optional(),
+}).passthrough();
+
+/** `session/update` notification params (streamed agent output). */
+export const AcpSessionUpdateSchema = z.object({
+  sessionId: z.string().min(1).optional(),
+  update: z.record(z.string(), z.unknown()).optional(),
+}).passthrough();
+
+/**
+ * Strict schema for `.harness/adapters/acp.yaml` → `config.runtime_config`.
+ *
+ * Strict so typos at adapter-load or mission-override time raise a Zod error
+ * instead of being silently dropped.
+ */
+export const AcpRuntimeConfigSchema = z.object({
+  server_command: z.string().min(1).default("acp-agent"),
+  server_args: z.array(z.string()).default([]),
+  model: z.string().optional(),
+  timeout_ms: z.number().int().positive().default(600_000),
+  protocol_version: AcpProtocolVersionSchema.default(1),
+}).strict();
+
+export type AcpRuntimeConfig = z.infer<typeof AcpRuntimeConfigSchema>;
+export type AcpInitializeResult = z.infer<typeof AcpInitializeResultSchema>;
+export type AcpSessionNewResult = z.infer<typeof AcpSessionNewResultSchema>;
+export type AcpSessionPromptResult = z.infer<typeof AcpSessionPromptResultSchema>;
+export type AcpSessionUpdate = z.infer<typeof AcpSessionUpdateSchema>;
diff --git a/src/schema/adapter-capabilities.ts b/src/schema/adapter-capabilities.ts
index eecec92..9b82971 100644
--- a/src/schema/adapter-capabilities.ts
+++ b/src/schema/adapter-capabilities.ts
@@ -31,7 +31,7 @@ export const AdapterCapabilitiesSchema = z.object({
   display_name: z.string(),
   tools: ToolCapabilitySchema,
   sandbox: SandboxCapabilitySchema,
-  max_context_tokens: z.number().int().positive(),
+  max_context_tokens: z.number().int().positive().nullable(),
   cost_class: CostClassSchema,
   supports_runtime_config_overrides: z.boolean(),
   supports_cancel: z.boolean(),
diff --git a/src/schema/artifacts.ts b/src/schema/artifacts.ts
index a1a6913..f82a196 100644
--- a/src/schema/artifacts.ts
+++ b/src/schema/artifacts.ts
@@ -109,6 +109,33 @@ export const PromotionSchema = z.object({
 
 export const RuntimeSessionStatusSchema = z.enum(["planned", "running", "succeeded", "failed"]);
 
+export const RuntimeCostBasisSchema = z.enum(["runtime_estimate", "configured_estimate", "provider_reported", "mixed"]);
+
+/** Explicit USD list prices and counter overlap semantics; never a billing receipt. */
+export const RuntimePricingSchema = z.object({
+  model: z.string().min(1),
+  input_usd_per_million: z.number().finite().nonnegative(),
+  output_usd_per_million: z.number().finite().nonnegative(),
+  cache_read_usd_per_million: z.number().finite().nonnegative(),
+  cache_write_usd_per_million: z.number().finite().nonnegative(),
+  input_includes_cache_read: z.boolean(),
+  input_includes_cache_write: z.boolean(),
+}).strict();
+export type RuntimePricing = z.infer<typeof RuntimePricingSchema>;
+
+export const RuntimeUsageSchema = z.object({
+  input_tokens: z.number().nonnegative().optional(),
+  output_tokens: z.number().nonnegative().optional(),
+  total_tokens: z.number().nonnegative().optional(),
+  source: z.enum(["runtime", "estimated"]),
+  model: z.string().min(1).optional(),
+  provider: z.string().min(1).optional(),
+  cache_read_tokens: z.number().nonnegative().optional(),
+  cache_write_tokens: z.number().nonnegative().optional(),
+  cost_usd: z.number().nonnegative().optional(),
+  cost_basis: RuntimeCostBasisSchema.optional(),
+}).strict();
+
 export const RuntimeSessionSchema = z.object({
   schema_version: z.literal("uh.runtime-session.v0"),
   mission_id: z.string().min(1),
@@ -121,6 +148,12 @@ export const RuntimeSessionSchema = z.object({
   finished_at: z.string().optional(),
   stdout_path: z.string().optional(),
   stderr_path: z.string().optional(),
+  provider: z.string().min(1).optional(),
+  model: z.string().min(1).optional(),
+  usage: RuntimeUsageSchema.optional(),
+  cost_usd: z.number().nonnegative().optional(),
+  cost_basis: RuntimeCostBasisSchema.optional(),
+  pricing: RuntimePricingSchema.optional(),
 }).strict();
 
 /**
@@ -175,15 +208,23 @@ export const RuntimeResultSchema = z.object({
   mission_id: z.string().min(1),
   runtime: z.string().min(1),
   status: RuntimeResultStatusSchema,
+  completion: z.enum(["complete", "incomplete"]).optional(),
+  incomplete_reason: z.string().optional(),
   started_at: z.string().min(1),
   finished_at: z.string().min(1),
   exit_code: z.number().int().optional(),
+  exit_code_ignored_reason: z.literal("runtime exited non-zero after completed native terminal event").optional(),
   prompt_path: z.string().min(1),
   stdout_path: z.string().min(1),
   stderr_path: z.string().min(1),
   diff_path: z.string().min(1).optional(),
   errors: z.array(z.string()).default([]),
   notes: z.string().optional(),
+  provider: z.string().min(1).optional(),
+  model: z.string().min(1).optional(),
+  usage: RuntimeUsageSchema.optional(),
+  cost_usd: z.number().nonnegative().optional(),
+  cost_basis: RuntimeCostBasisSchema.optional(),
   verdict: RuntimeResultVerdictSchema.optional(),
 }).strict();
 
diff --git a/src/schema/decisions.ts b/src/schema/decisions.ts
new file mode 100644
index 0000000..269553d
--- /dev/null
+++ b/src/schema/decisions.ts
@@ -0,0 +1,117 @@
+import { z } from "zod";
+
+export const DecisionKindSchema = z.enum([
+  "runtime-selection",
+  "acceptance",
+  "scope-change",
+  "review-escalation",
+  "retry-stop",
+]);
+
+export const DecisionStatusSchema = z.enum([
+  "applied",
+  "advisory",
+  "awaiting-human",
+  "denied",
+  "unavailable",
+  "malformed",
+  "uncertain",
+]);
+
+export const DecisionProviderStatusSchema = z.enum([
+  "not-requested",
+  "disabled",
+  "available",
+  "unavailable",
+  "malformed",
+  "uncertain",
+]);
+
+export const DecisionAuthorizerSchema = z.enum(["none", "deterministic", "jev", "human"]);
+
+const DigestSchema = z.string().regex(/^[a-f0-9]{64}$/, "must be a lowercase SHA-256 digest");
+
+export const RuntimeSelectionRecommendationSchema = z.object({
+  kind: z.literal("runtime-selection"),
+  runtime: z.string().min(1),
+  model: z.string().min(1).optional(),
+}).strict();
+
+export const AcceptanceRecommendationSchema = z.object({
+  kind: z.literal("acceptance"),
+  outcome: z.enum(["pass", "needs-attention", "needs-remediation"]),
+}).strict();
+
+export const ScopeChangeRecommendationSchema = z.object({
+  kind: z.literal("scope-change"),
+  outcome: z.enum(["approve", "reject", "needs-human"]),
+}).strict();
+
+export const ReviewEscalationRecommendationSchema = z.object({
+  kind: z.literal("review-escalation"),
+  outcome: z.enum(["continue", "escalate", "stop"]),
+}).strict();
+
+export const RetryStopRecommendationSchema = z.object({
+  kind: z.literal("retry-stop"),
+  outcome: z.enum(["retry", "stop", "defer"]),
+}).strict();
+
+export const DecisionRecommendationSchema = z.discriminatedUnion("kind", [
+  RuntimeSelectionRecommendationSchema,
+  AcceptanceRecommendationSchema,
+  ScopeChangeRecommendationSchema,
+  ReviewEscalationRecommendationSchema,
+  RetryStopRecommendationSchema,
+]);
+
+export const DecisionProviderSchema = z.object({
+  name: z.literal("typesafe"),
+  model: z.string().min(1).optional(),
+  latency_ms: z.number().int().nonnegative().optional(),
+  usage: z.object({
+    input_tokens: z.number().int().nonnegative().optional(),
+    output_tokens: z.number().int().nonnegative().optional(),
+    total_tokens: z.number().int().nonnegative().optional(),
+  }).strict().optional(),
+}).strict();
+
+export const DecisionStateTransitionSchema = z.object({
+  from: z.string().min(1).max(120),
+  to: z.string().min(1).max(120),
+  unlocked: z.array(z.string().min(1).max(120)).max(8),
+}).strict();
+
+export const DecisionReceiptSchema = z.object({
+  schema_version: z.literal("uh.decision-receipt.v0"),
+  decision_id: z.string().min(1).regex(/^[A-Za-z0-9][A-Za-z0-9._-]{0,159}$/),
+  mission_id: z.string().min(1),
+  run_id: z.string().min(1).optional(),
+  kind: DecisionKindSchema,
+  status: DecisionStatusSchema,
+  provider_status: DecisionProviderStatusSchema,
+  authorizer: DecisionAuthorizerSchema,
+  applied: z.boolean(),
+  deterministic_fallback: z.boolean().optional(),
+  human_required: z.boolean(),
+  confidence: z.number().finite().min(0).max(1).optional(),
+  recommendation: DecisionRecommendationSchema.optional(),
+  provider: DecisionProviderSchema.optional(),
+  input_sha256: DigestSchema,
+  response_sha256: DigestSchema.optional(),
+  reason: z.string().min(1).max(500),
+  state_transition: DecisionStateTransitionSchema,
+  created_at: z.string().datetime({ offset: true }),
+}).strict();
+
+export type DecisionKind = z.infer<typeof DecisionKindSchema>;
+export type DecisionStatus = z.infer<typeof DecisionStatusSchema>;
+export type DecisionProviderStatus = z.infer<typeof DecisionProviderStatusSchema>;
+export type DecisionAuthorizer = z.infer<typeof DecisionAuthorizerSchema>;
+export type DecisionRecommendation = z.infer<typeof DecisionRecommendationSchema>;
+export type DecisionReceipt = z.infer<typeof DecisionReceiptSchema>;
+export type DecisionProvider = z.infer<typeof DecisionProviderSchema>;
+
+export function validateDecisionReceipt(data: unknown): DecisionReceipt {
+  return DecisionReceiptSchema.parse(data);
+}
diff --git a/src/schema/experiment.ts b/src/schema/experiment.ts
new file mode 100644
index 0000000..59f46ed
--- /dev/null
+++ b/src/schema/experiment.ts
@@ -0,0 +1,126 @@
+import { z } from "zod";
+
+const SafeIdentifierSchema = z
+  .string()
+  .min(1, { message: "id must not be empty" })
+  .regex(/^[a-zA-Z0-9][a-zA-Z0-9._-]*$/, {
+    message: "id must start with [a-zA-Z0-9] and use only [a-zA-Z0-9._-]",
+  })
+  .refine((id) => id !== "." && id !== "..", {
+    message: "id must not be '.' or '..'",
+  });
+
+/**
+ * One arm is a configuration surface measured against the others: a session
+ * template, extra runtime-config overrides, and how many independent attempts
+ * each task gets under it.
+ */
+export const ExperimentArmSchema = z
+  .object({
+    id: SafeIdentifierSchema,
+    template: z.string().min(1).optional(),
+    runtime_config_overrides: z.record(z.string(), z.unknown()).optional(),
+    attempts_per_task: z.number().int().min(1).default(1),
+  })
+  .strict();
+
+/**
+ * A seeded split: the tasks are deterministically partitioned into a `search`
+ * and a `held_out` set from `seed`. The seed is part of every output so a split
+ * can always be reproduced.
+ */
+export const ExperimentSeedSplitSchema = z
+  .object({
+    seed: z.number().int(),
+    held_out_fraction: z.number().gt(0).lt(1).default(0.34),
+  })
+  .strict();
+
+/** An explicit held-out set; every listed task must also appear in `tasks`. */
+export const ExperimentExplicitSplitSchema = z
+  .object({
+    held_out: z.array(z.string().min(1)).min(1),
+  })
+  .strict();
+
+export const ExperimentSplitSchema = z.union([
+  ExperimentSeedSplitSchema,
+  ExperimentExplicitSplitSchema,
+]);
+
+export const ExperimentBudgetSchema = z
+  .object({
+    max_runs: z.number().int().positive().optional(),
+    max_total_cost_usd: z.number().positive().optional(),
+  })
+  .strict()
+  .default({});
+
+/**
+ * The configuration a run is honestly compared against: the baseline arm and
+ * how many of its attempts run in parallel, which is what `bestOfN` makes
+ * visible.
+ */
+export const ExperimentBaselineSchema = z
+  .object({
+    arm: z.string().min(1),
+    parallel_attempts: z.number().int().min(1).default(1),
+  })
+  .strict();
+
+export const ExperimentSchema = z
+  .object({
+    schema_version: z.literal("uh.experiment.v0"),
+    id: SafeIdentifierSchema,
+    title: z.string().min(1),
+    tasks: z.array(z.string().min(1)).min(1),
+    split: ExperimentSplitSchema,
+    arms: z.array(ExperimentArmSchema).min(1),
+    budget: ExperimentBudgetSchema,
+    baseline: ExperimentBaselineSchema,
+  })
+  .strict()
+  .superRefine((experiment, ctx) => {
+    const armIds = new Set<string>();
+    experiment.arms.forEach((arm, index) => {
+      if (armIds.has(arm.id)) {
+        ctx.addIssue({ code: "custom", message: `Duplicate arm id: ${arm.id}`, path: ["arms", index, "id"] });
+      }
+      armIds.add(arm.id);
+    });
+    const taskIds = new Set<string>();
+    experiment.tasks.forEach((task, index) => {
+      if (taskIds.has(task)) {
+        ctx.addIssue({ code: "custom", message: `Duplicate task: ${task}`, path: ["tasks", index] });
+      }
+      taskIds.add(task);
+    });
+    if (!armIds.has(experiment.baseline.arm)) {
+      ctx.addIssue({
+        code: "custom",
+        message: `baseline.arm "${experiment.baseline.arm}" is not one of arms`,
+        path: ["baseline", "arm"],
+      });
+    }
+    if ("held_out" in experiment.split) {
+      experiment.split.held_out.forEach((task, index) => {
+        if (!taskIds.has(task)) {
+          ctx.addIssue({
+            code: "custom",
+            message: `split.held_out task "${task}" is not in tasks`,
+            path: ["split", "held_out", index],
+          });
+        }
+      });
+    }
+  });
+
+export type ExperimentDocument = z.infer<typeof ExperimentSchema>;
+export type ExperimentArm = z.infer<typeof ExperimentArmSchema>;
+export type ExperimentSplitSpec = z.infer<typeof ExperimentSplitSchema>;
+export type ExperimentBudget = z.infer<typeof ExperimentBudgetSchema>;
+export type ExperimentBaseline = z.infer<typeof ExperimentBaselineSchema>;
+
+export function validateExperiment(data: unknown): ExperimentDocument {
+  return ExperimentSchema.parse(data);
+}
diff --git a/src/schema/independent-review.ts b/src/schema/independent-review.ts
new file mode 100644
index 0000000..67d051e
--- /dev/null
+++ b/src/schema/independent-review.ts
@@ -0,0 +1,104 @@
+import { z } from "zod";
+import { VerdictValueSchema, VerificationCheckSchema } from "./artifacts.js";
+
+const DigestSchema = z.string().regex(/^[a-f0-9]{64}$/);
+const EvidenceSchema = z.string().trim().min(1);
+
+export const IndependentReviewBindingSchema = z.object({
+  request_path: z.string().min(1),
+  request_sha256: DigestSchema,
+  report_path: z.string().min(1),
+  runtime: z.enum(["oh-my-pi", "command-code", "claude-code"]),
+  model: z.string().trim().min(1),
+}).strict();
+export type IndependentReviewBinding = z.infer<typeof IndependentReviewBindingSchema>;
+
+const ReviewInputFileSchema = z.object({
+  original_path: z.string().min(1),
+  kind: z.enum(["contract", "output"]),
+  state: z.enum(["present", "missing"]),
+  snapshot_path: z.string().min(1).optional(),
+  sha256: DigestSchema.optional(),
+  verification: VerificationCheckSchema.optional(),
+}).strict().superRefine((file, ctx) => {
+  if ((file.state === "present") !== (file.snapshot_path !== undefined && file.sha256 !== undefined)) {
+    ctx.addIssue({ code: "custom", message: "Present review inputs require a snapshot and digest" });
+  }
+  if (file.state === "missing" && (file.snapshot_path !== undefined || file.sha256 !== undefined)) {
+    ctx.addIssue({ code: "custom", message: "Missing review inputs cannot claim snapshot evidence" });
+  }
+});
+
+export const IndependentReviewRequestSchema = z.object({
+  schema_version: z.literal("uh.independent-review-request.v0"),
+  review_id: z.string().min(1),
+  sources: z.array(z.object({
+    mission_id: z.string().min(1),
+  source_root: z.string().min(1),
+    files: z.array(ReviewInputFileSchema).min(1),
+    reference_paths: z.array(z.string()),
+    acceptance: z.array(z.object({ id: z.string().min(1), description: EvidenceSchema }).strict()),
+    checks: z.array(z.object({ id: z.string().min(1), description: EvidenceSchema }).strict()),
+  }).strict()).min(1),
+}).strict().superRefine((request, ctx) => {
+  const ids = new Set<string>();
+  for (const source of request.sources) {
+    if (ids.has(source.mission_id)) ctx.addIssue({ code: "custom", message: "Duplicate review source mission" });
+    ids.add(source.mission_id);
+    if (source.files.filter(file => file.kind === "contract" && file.state === "present").length !== 1) {
+      ctx.addIssue({ code: "custom", message: "Each review source requires exactly one captured contract" });
+    }
+  }
+});
+export type IndependentReviewRequest = z.infer<typeof IndependentReviewRequestSchema>;
+
+const ReviewedCheckSchema = z.object({
+  id: z.string().min(1),
+  status: z.enum(["passed", "failed", "blocked"]),
+  evidence: EvidenceSchema,
+}).strict();
+
+/** Verified observations that no listed id covers; never graded, never part of the recommendation. */
+export const IndependentReviewObservationSchema = z.object({
+  title: EvidenceSchema,
+  evidence: EvidenceSchema,
+  relates_to: z.string().optional(),
+  severity: z.enum(["info", "warn"]).optional(),
+}).strict();
+
+export const IndependentReviewReportSchema = z.object({
+  schema_version: z.literal("uh.independent-review-report.v0"),
+  request_sha256: DigestSchema,
+  sources: z.array(z.object({
+    mission_id: z.string().min(1),
+    claims_checked: z.array(z.object({
+      claim: EvidenceSchema,
+      source: EvidenceSchema,
+      observed: EvidenceSchema,
+      verdict: z.enum(["supported", "contradicted", "unverified"]),
+    }).strict()).min(1),
+    acceptance: z.array(ReviewedCheckSchema),
+    checks: z.array(ReviewedCheckSchema),
+    findings: z.array(z.object({
+      severity: z.enum(["error", "warning", "info"]),
+      detail: EvidenceSchema,
+      evidence: EvidenceSchema,
+    }).strict()),
+    observations: z.array(IndependentReviewObservationSchema).optional(),
+    verdict: VerdictValueSchema,
+    reason: EvidenceSchema,
+  }).strict()).min(1),
+}).strict();
+export type IndependentReviewReport = z.infer<typeof IndependentReviewReportSchema>;
+
+export const IndependentReviewAssessmentSchema = z.object({
+  schema_version: z.literal("uh.independent-review-assessment.v0"),
+  review_id: z.string().min(1),
+  run_id: z.string().min(1),
+  request_sha256: DigestSchema,
+  recommendation: VerdictValueSchema,
+  human_acceptance_required: z.literal(true),
+  observations: z.array(IndependentReviewObservationSchema.extend({
+    source: z.string().min(1),
+  }).strict()).optional(),
+}).strict();
diff --git a/src/schema/index.ts b/src/schema/index.ts
index 38b5a79..62c7e78 100644
--- a/src/schema/index.ts
+++ b/src/schema/index.ts
@@ -4,4 +4,5 @@ export * from "./adapter-capabilities.js";
 export * from "./workflow.js";
 export * from "./delivery-observatory.js";
 export * from "./mission.js";
+export * from "./team.js";
 export * from "./artifacts.js";
diff --git a/src/schema/mission.ts b/src/schema/mission.ts
index 85e38d3..e0d6e59 100644
--- a/src/schema/mission.ts
+++ b/src/schema/mission.ts
@@ -1,5 +1,8 @@
+import path from "node:path";
+import { TeamResourceLimitsSchema, RuntimeLimitsSchema, ToolGuardFieldsSchema, resolveToolGuardPolicy, type ToolGuardPolicy, DEFAULT_PROTECTED_PATHS } from "./runtime-control.js";
 import { z } from "zod";
 import { CostClassSchema } from "./adapter-capabilities.js";
+import { IndependentReviewBindingSchema } from "./independent-review.js";
 
 const IssueSchema = z.object({
   source: z.string(),
@@ -16,6 +19,7 @@ const IssueRefSchema = z.object({
 const ExpectedArtifactSchema = z.object({
   path: z.string(),
   type: z.string().optional(),
+  completion_marker: z.string().trim().min(1).regex(/^[^\r\n]+$/).optional(),
 });
 
 const AcceptanceCriterionSchema = z.object({
@@ -55,15 +59,34 @@ const CapabilitySchema = z.string().min(1).regex(/^[A-Za-z0-9][A-Za-z0-9._:-]*$/
  * adapter modules. Keep in sync with `RUNTIME_WIRINGS` in `src/cli.ts` and the
  * adapter manifests under `.harness/adapters/`.
  */
-export const TEAM_ADAPTER_IDS = ["hermes", "codex", "oh-my-pi", "hermes-proxy", "openrouter", "anthropic", "pi"] as const;
+export const TEAM_ADAPTER_IDS = ["hermes", "codex", "oh-my-pi", "hermes-proxy", "openrouter", "anthropic", "pi", "command-code", "claude-code", "acp"] as const;
 const AdapterIdSchema = z.enum(TEAM_ADAPTER_IDS);
 
-const TeamWorkerSchema = z.object({
+export const TeamWorkerSchema = z.object({
   adapter: AdapterIdSchema,
   role: z.string().min(1),
+  mission_id: z.string().min(1).optional(),
   count: z.number().int().positive().optional().default(1),
+  objective: z.string().min(1).optional(),
+  runtime_config_overrides: z.record(z.string(), z.unknown()).optional(),
+  limits: z.preprocess((value, ctx) => {
+    if (value && typeof value === "object" && "memory_mb" in value) {
+      ctx.addIssue({
+        code: "custom",
+        message: "Per-worker memory is governed by team.resources.worker_memory_mb",
+      });
+    }
+    return value;
+  }, RuntimeLimitsSchema.omit({ memory_mb: true })).optional(),
+  guard: ToolGuardFieldsSchema.optional(),
+  expected_outputs: z.object({
+    files: z.array(z.string().min(1)),
+  }).strict().optional(),
+  seed: z.number().int().nonnegative().optional(),
 }).strict();
 
+export type TeamWorker = z.input<typeof TeamWorkerSchema>;
+
 const TeamLeaderSchema = z.object({
   adapter: AdapterIdSchema,
   role: z.string().min(1).optional(),
@@ -72,6 +95,7 @@ const TeamLeaderSchema = z.object({
 const TeamShapeSchema = z.object({
   workers: z.array(TeamWorkerSchema).min(1, { message: "team.workers must contain at least one worker" }),
   leader: TeamLeaderSchema,
+  resources: TeamResourceLimitsSchema.optional(),
 }).strict();
 
 
@@ -91,6 +115,23 @@ export const RuntimeRequirementsSchema = z.object({
   max_cost_class: CostClassSchema.default("premium"),
 }).strict();
 
+/**
+ * Optional governed-decision policy. Additive and strict: a legacy mission that
+ * omits it keeps its purely deterministic behavior. `allowed_runtimes` narrows
+ * deterministic adapter eligibility; `allowed_models` is the only model set a
+ * JEV (TypeSafe System One) recommendation may be applied from.
+ */
+export const DecisionPolicySchema = z.object({
+  enabled: z.boolean().default(false),
+  min_confidence: z.number().min(0).max(1).default(0.7),
+  allowed_runtimes: z.array(AdapterIdSchema).optional().default([]),
+  allowed_models: z.array(z.string().min(1)).optional().default([]),
+  require_provider_for_route: z.boolean().default(false),
+  require_provider_for_retry: z.boolean().default(false),
+  escalation_model: z.string().min(1).optional(),
+  fallback_model: z.string().min(1).optional(),
+}).strict();
+
 const MissionInputSchema = z.object({
   schema_version: z.literal("uh.mission.v0"),
   id: z.string().min(1),
@@ -119,7 +160,8 @@ const MissionInputSchema = z.object({
   tdd: TddOptionsSchema.optional(),
   capabilities: z.array(CapabilitySchema).optional().default([]),
   runtime_requirements: RuntimeRequirementsSchema.optional(),
-
+  decision_policy: DecisionPolicySchema.optional(),
+  guard: ToolGuardFieldsSchema.optional(),
   // Backward-compatible fields.
   name: z.string().min(1).optional(),
   description: z.string().optional(),
@@ -146,6 +188,7 @@ const MissionInputSchema = z.object({
     max_iterations: z.number().int().positive().optional(),
   }).optional().default({ checks: [], required_checks: [], review_gates: [] }),
   runtime_config_overrides: z.record(z.string(), z.unknown()).optional().default({}),
+  independent_review: IndependentReviewBindingSchema.optional(),
 
   // UH-71 team shape + UH-75 design companion.
   shape: z.enum(["single", "team"]).optional().default("single"),
@@ -172,6 +215,22 @@ const MissionInputSchema = z.object({
     }
     seen.add(ac.id);
   }
+  const declaredOutputs = [
+    ...mission.expected_outputs.files.map((pathValue, index) => ({ pathValue, path: ["expected_outputs", "files", index] as (string | number)[] })),
+    ...(mission.expected_artifacts ?? []).map((artifact, index) => ({ pathValue: artifact.path, path: ["expected_artifacts", index, "path"] as (string | number)[] })),
+  ];
+  for (const output of declaredOutputs) {
+    const normalized = path.posix.normalize(output.pathValue.trim().replaceAll("\\", "/")).replace(/^\.\/+/, "");
+    const protectedOutput = DEFAULT_PROTECTED_PATHS.some((root) =>
+      normalized === root || normalized.startsWith(`${root}/`));
+    if (protectedOutput) {
+      ctx.addIssue({
+        code: "custom",
+        message: `Expected output cannot target protected runtime path "${output.pathValue}"; workers must write permitted outputs and the trusted controller owns .harness persistence`,
+        path: output.path,
+      });
+    }
+  }
   if (mission.shape === "team") {
     if (!mission.team) {
       ctx.addIssue({
@@ -196,6 +255,10 @@ const MissionInputSchema = z.object({
   }
 }).transform((mission) => ({
   ...mission,
+  guard: mission.guard === undefined ? undefined : resolveToolGuardPolicy(
+    mission.guard,
+    mission.runtime_requirements?.needs_network ?? false,
+  ),
   name: mission.name ?? mission.title ?? "",
   description: mission.description ?? mission.objective,
   issues: mission.issues ?? mission.issue_refs.map((issue): { source: string; reference: string; url?: string } => ({
@@ -204,7 +267,7 @@ const MissionInputSchema = z.object({
     url: issue.url,
   })),
   read_first: mission.read_first ?? mission.context.read_first,
-  expected_artifacts: mission.expected_artifacts ?? mission.expected_outputs.files.map((path): { path: string; type?: string } => ({ path })),
+  expected_artifacts: mission.expected_artifacts ?? mission.expected_outputs.files.map((path): z.infer<typeof ExpectedArtifactSchema> => ({ path })),
   sandbox: {
     backend: mission.sandbox.backend,
     promotion_policy: mission.sandbox.promotion_policy,
@@ -236,6 +299,8 @@ export type MissionDocument = z.infer<typeof MissionSchema>;
 export type AcceptanceCriterion = z.infer<typeof AcceptanceCriterionSchema>;
 export type TddOptions = z.infer<typeof TddOptionsSchema>;
 export type RuntimeRequirements = z.infer<typeof RuntimeRequirementsSchema>;
+export type DecisionPolicy = z.infer<typeof DecisionPolicySchema>;
+export type ResolvedToolGuardPolicy = ToolGuardPolicy;
 export const TDD_DEFAULT_TEST_PATHS = DEFAULT_TEST_PATHS;
 export const TDD_DEFAULT_SOURCE_PATHS = DEFAULT_SOURCE_PATHS;
 
diff --git a/src/schema/prices.ts b/src/schema/prices.ts
new file mode 100644
index 0000000..0e50efc
--- /dev/null
+++ b/src/schema/prices.ts
@@ -0,0 +1,22 @@
+import { z } from "zod";
+
+/**
+ * Operator-maintained USD list prices for one model, as written in
+ * `.harness/prices.yaml`. The harness never ships or invents a price: every
+ * number here is operator-supplied, and `source` records where it came from.
+ */
+export const OperatorPriceEntrySchema = z.object({
+  input_usd_per_million: z.number().finite().nonnegative(),
+  output_usd_per_million: z.number().finite().nonnegative(),
+  cache_read_usd_per_million: z.number().finite().nonnegative(),
+  cache_write_usd_per_million: z.number().finite().nonnegative(),
+  /** Where these numbers came from (provider price page, contract, ...). */
+  source: z.string().min(1),
+}).strict();
+export type OperatorPriceEntry = z.infer<typeof OperatorPriceEntrySchema>;
+
+export const OperatorPriceTableSchema = z.object({
+  schema_version: z.literal("uh.prices.v0"),
+  models: z.record(z.string().min(1), OperatorPriceEntrySchema),
+}).strict();
+export type OperatorPriceTableDocument = z.infer<typeof OperatorPriceTableSchema>;
diff --git a/src/schema/project.ts b/src/schema/project.ts
index 7e1f1f0..c378638 100644
--- a/src/schema/project.ts
+++ b/src/schema/project.ts
@@ -1,5 +1,18 @@
 import { z } from "zod";
 
+export const FleetRoleSchema = z.enum(["worker", "orchestrator"]);
+export type FleetRole = z.infer<typeof FleetRoleSchema>;
+
+/** Models the project authorizes spend on, per adapter and role. */
+export const FleetPolicySchema = z.object({
+  routes: z.array(z.object({
+    adapter: z.string().min(1),
+    model: z.string().min(1),
+    roles: z.array(FleetRoleSchema).min(1).default(["worker"]),
+  }).strict()).min(1),
+}).strict();
+export type FleetPolicy = z.infer<typeof FleetPolicySchema>;
+
 export const ProjectSchema = z.object({
   schema_version: z.literal("uh.project.v0"),
   id: z.string().min(1),
@@ -17,6 +30,7 @@ export const ProjectSchema = z.object({
     .default([]),
   default_workflow_profiles: z.array(z.string()).optional().default([]),
   artifact_schema_version: z.string().optional(),
+  fleet: FleetPolicySchema.optional(),
 });
 
 export type ProjectDocument = z.infer<typeof ProjectSchema>;
diff --git a/src/schema/runtime-control.ts b/src/schema/runtime-control.ts
new file mode 100644
index 0000000..9719693
--- /dev/null
+++ b/src/schema/runtime-control.ts
@@ -0,0 +1,147 @@
+import { z } from "zod";
+import { RuntimeUsageSchema } from "./artifacts.js";
+
+/** Relative roots whose mutation is a hard runtime policy stop. */
+export const DEFAULT_PROTECTED_PATHS = [".harness", ".commandcode", ".omp", ".pi", ".git"];
+
+/** Input fields accepted on mission and worker guard blocks. */
+export const ToolGuardFieldsSchema = z.object({
+  write_roots: z.array(z.string().min(1)).optional(),
+  deny_git_mutations: z.boolean().optional(),
+  deny_package_installs: z.boolean().optional(),
+  deny_network_clients: z.boolean().optional(),
+  agent_clients: z.array(z.string().min(1)).optional(),
+  allow_native_subagents: z.boolean().optional(),
+}).strict();
+export type ToolGuardFields = z.infer<typeof ToolGuardFieldsSchema>;
+
+/** The resolved per-tool guard policy. */
+export const ToolGuardPolicySchema = z.object({
+  write_roots: z.array(z.string().min(1)).default(["."]),
+  deny_git_mutations: z.boolean().default(true),
+  deny_package_installs: z.boolean().default(true),
+  deny_network_clients: z.boolean().default(true),
+  agent_clients: z.array(z.string().min(1)).default(["omp", "cmdc", "codex", "pi", "hermes", "aider", "gemini", "claude", "opencode", "qwen", "goose", "cursor-agent"]),
+  /** Lets a runtime use its own sub-agent tool. Delegated routes are still held to the assigned route. */
+  allow_native_subagents: z.boolean().default(false),
+}).strict();
+export type ToolGuardPolicy = z.infer<typeof ToolGuardPolicySchema>;
+
+export function resolveToolGuardPolicy(
+  fields: ToolGuardFields | undefined,
+  needsNetwork = false,
+): ToolGuardPolicy {
+  return ToolGuardPolicySchema.parse({
+    ...fields,
+    deny_network_clients: fields?.deny_network_clients ?? !needsNetwork,
+  });
+}
+
+/** Durable run artifact containing the applied policy and path protections. */
+export const ToolGuardArtifactSchema = ToolGuardPolicySchema.extend({
+  schema_version: z.literal("uh.tool-guard.v0"),
+  worker_root: z.string().min(1),
+  protected_paths: z.array(z.string().min(1)),
+  /** Only the explicit Claude Code orchestrator role may set this marker. */
+  controller_commands: z.boolean().default(false),
+}).strict();
+export type ToolGuardArtifact = z.infer<typeof ToolGuardArtifactSchema>;
+
+/** Optional limits are enforced by UH, independently of model compliance. */
+export const RuntimeLimitsSchema = z.object({
+  timeout_ms: z.number().int().positive().optional(),
+  memory_mb: z.number().int().positive().optional(),
+  startup_timeout_ms: z.number().int().positive().optional(),
+  stall_timeout_ms: z.number().int().positive().optional(),
+  max_thinking_ms: z.number().int().positive().optional(),
+  max_turns: z.number().int().positive().optional(),
+  max_denials: z.number().int().positive().optional(),
+  max_repeated_failures: z.number().int().positive().optional(),
+  max_output_bytes: z.number().int().positive().safe().optional(),
+  protected_paths: z.array(z.string().min(1)).optional(),
+}).strict();
+export type RuntimeLimits = z.infer<typeof RuntimeLimitsSchema>;
+export const TeamResourceLimitsSchema = z.object({
+  max_parallel: z.number().int().positive().default(4),
+  worker_memory_mb: z.number().int().positive().optional(),
+  reserve_memory_mb: z.number().int().nonnegative().default(1024),
+  max_cost_usd: z.number().positive().optional(),
+  worker_cost_reservation_usd: z.number().positive().optional(),
+}).strict().superRefine((limits, ctx) => {
+  if ((limits.max_cost_usd === undefined) !== (limits.worker_cost_reservation_usd === undefined)) {
+    ctx.addIssue({ code: "custom", message: "Cost admission requires both max_cost_usd and worker_cost_reservation_usd" });
+  }
+});
+export type TeamResourceLimits = z.input<typeof TeamResourceLimitsSchema>;
+
+export const RuntimeRouteSchema = z.object({
+  provider: z.string().min(1).optional(),
+  model: z.string().min(1).optional(),
+}).strict();
+export type RuntimeRoute = z.infer<typeof RuntimeRouteSchema>;
+
+export const RuntimeStopCodeSchema = z.enum(["startup", "stall", "timeout", "turn_limit", "deadline", "output_limit", "repeated_failure", "denial_budget", "policy", "route_mismatch", "route_unverified", "cancelled", "runtime_error", "controller_error", "controller_lost"]);
+export type RuntimeStopCode = z.infer<typeof RuntimeStopCodeSchema>;
+export const RuntimeRecoveryDeadlineSchema = z.object({
+  grace_turns: z.number().int().min(1).default(3),
+  grace_timeout_ms: z.number().int().positive().default(300000),
+  notes: z.string().optional(),
+}).strict();
+export type RuntimeRecoveryDeadline = z.infer<typeof RuntimeRecoveryDeadlineSchema>;
+export const RuntimeRecoveryPolicySchema = z.object({
+  max_resumes: z.number().int().nonnegative(),
+  notes: z.string().min(1),
+  on_deadline: RuntimeRecoveryDeadlineSchema.optional(),
+}).strict();
+export const RuntimeRecoveryRecordSchema = z.object({
+  schema_version: z.literal("uh.runtime-recovery.v0"),
+  source_run_id: z.string().min(1),
+  session_id: z.string().min(1),
+  notes: z.string().min(1),
+  source_stop_code: RuntimeStopCodeSchema.optional(),
+  source_stop_reason: z.string().optional(),
+  grace: z.boolean().default(false),
+}).strict();
+export const RuntimeControlSchema = z.object({
+  schema_version: z.literal("uh.runtime-control.v0"),
+  permission_mode: z.enum(["guard", "yolo", "prompt"]).optional(),
+  mission_id: z.string().min(1),
+  run_id: z.string().min(1),
+  runtime: z.string().min(1),
+  controller_pid: z.number().int().positive(),
+  started_at: z.string().datetime(),
+  heartbeat_at: z.string().datetime(),
+  ready_at: z.string().datetime().optional(),
+  session_id: z.string().min(1).optional(),
+  expected_route: RuntimeRouteSchema.optional(),
+  review_request_sha256: z.string().regex(/^[a-f0-9]{64}$/).optional(),
+  status: z.enum(["running", "passed", "failed", "blocked", "cancelled"]),
+  stop_code: RuntimeStopCodeSchema.optional(),
+  stop_reason: z.string().optional(),
+  guard_armed: z.boolean().optional(),
+  turns: z.number().int().nonnegative(),
+  denials: z.number().int().nonnegative(),
+  inflight_tools: z.number().int().nonnegative(),
+  usage: RuntimeUsageSchema.optional(),
+  settlement_confirmed: z.boolean().optional(),
+  guardian: z.object({
+    mode: z.enum(["cache", "per_run"]),
+    path: z.string().min(1),
+  }).strict().optional(),
+  peak_memory_bytes: z.number().int().nonnegative().optional(),
+}).strict();
+export type RuntimeControl = z.infer<typeof RuntimeControlSchema>;
+
+export const WindowsJobResultSchema = z.object({
+  exit_code: z.number().int(),
+  peak_memory_bytes: z.number().int().nonnegative(),
+  controller_lost: z.boolean(),
+  settled: z.boolean(),
+}).strict();
+
+export const RuntimeCancelRequestSchema = z.object({
+  schema_version: z.literal("uh.runtime-cancel-request.v0"),
+  mission_id: z.string().min(1),
+  run_id: z.string().min(1),
+  requested_at: z.string().datetime(),
+}).strict();
diff --git a/src/schema/session-template.ts b/src/schema/session-template.ts
new file mode 100644
index 0000000..1d2119e
--- /dev/null
+++ b/src/schema/session-template.ts
@@ -0,0 +1,50 @@
+import { z } from "zod";
+import { TEAM_ADAPTER_IDS } from "./mission.js";
+import {
+  RuntimeLimitsSchema,
+  RuntimeRecoveryPolicySchema,
+  ToolGuardFieldsSchema,
+} from "./runtime-control.js";
+
+const SafeIdentifierSchema = z
+  .string()
+  .min(1, { message: "id must not be empty" })
+  .regex(/^[a-zA-Z0-9][a-zA-Z0-9._-]*$/, {
+    message: "id must start with [a-zA-Z0-9] and use only [a-zA-Z0-9._-]",
+  })
+  .refine((id) => id !== "." && id !== "..", {
+    message: "id must not be '.' or '..'",
+  });
+
+export const SessionTemplateTierSchema = z.enum(["low-cost", "balanced", "exhaustive"]);
+export type SessionTemplateTier = z.infer<typeof SessionTemplateTierSchema>;
+
+export const SessionTemplateContainmentSchema = z.enum(["standard", "strict"]);
+export type SessionTemplateContainment = z.infer<typeof SessionTemplateContainmentSchema>;
+
+export const SessionTemplateLimitsSchema = RuntimeLimitsSchema.omit({ memory_mb: true }).strict();
+export type SessionTemplateLimits = z.infer<typeof SessionTemplateLimitsSchema>;
+
+export const SessionTemplateSchema = z
+  .object({
+    schema_version: z.literal("uh.session-template.v0"),
+    id: SafeIdentifierSchema,
+    title: z.string().min(1),
+    tier: SessionTemplateTierSchema,
+    containment: SessionTemplateContainmentSchema.default("standard"),
+    adapter: z.enum(TEAM_ADAPTER_IDS),
+    runtime_config_overrides: z.record(z.string(), z.unknown()).default({}),
+    limits: SessionTemplateLimitsSchema.default({}),
+    recovery: RuntimeRecoveryPolicySchema.optional(),
+    guard: ToolGuardFieldsSchema.optional(),
+    attempts: z.number().int().min(1).max(8).default(1),
+    notes: z.string().optional(),
+  })
+  .strict();
+
+export type SessionTemplate = z.infer<typeof SessionTemplateSchema>;
+export type SessionTemplateInput = z.input<typeof SessionTemplateSchema>;
+
+export function validateSessionTemplate(data: unknown): SessionTemplate {
+  return SessionTemplateSchema.parse(data);
+}
diff --git a/src/schema/team.ts b/src/schema/team.ts
new file mode 100644
index 0000000..4988d2e
--- /dev/null
+++ b/src/schema/team.ts
@@ -0,0 +1,106 @@
+import { z } from "zod";
+import { RuntimeLimitsSchema } from "./runtime-control.js";
+
+export const CanonicalTeamStatusSchema = z.enum([
+  "running",
+  "passed",
+  "passed_partial",
+  "failed",
+  "blocked",
+]);
+
+export const CanonicalTeamWorkerStatusSchema = z.enum([
+  "queued",
+  "running",
+  "succeeded",
+  "failed",
+  "blocked",
+  "error",
+]);
+
+export const CanonicalTeamLeaderStatusSchema = z.enum([
+  "queued",
+  "integrating",
+  "succeeded",
+  "failed",
+  "blocked",
+]);
+
+const CanonicalWorkerContractSchema = z.object({
+  objective: z.string().min(1).optional(),
+  constraints: z.array(z.string()).optional(),
+  runtime_config_overrides: z.record(z.string(), z.unknown()).optional(),
+  limits: RuntimeLimitsSchema.omit({ memory_mb: true }).optional(),
+  expected_outputs: z.object({
+    files: z.array(z.string().min(1)),
+  }).strict().optional(),
+  seed: z.number().int().nonnegative().optional(),
+}).strict();
+
+const CanonicalWorkerOutputSchema = z.object({
+  path: z.string().min(1),
+  status: z.enum(["passed", "failed"]),
+  notes: z.string().optional(),
+}).strict();
+
+/**
+ * Salvage record for a worker that settled as failed with a recoverable stop
+ * code (turn_limit / timeout / deadline / stall / policy). Records whether the
+ * worktree held non-protected changes (`eligible`) and, when it did, whether
+ * the worker's declared outputs and its `verification.required_checks` both
+ * passed. A committed `branch` is only written when both passed — the leader
+ * never merges a failed worker automatically.
+ */
+const CanonicalWorkerSalvageSchema = z.object({
+  eligible: z.boolean(),
+  outputs_passed: z.boolean(),
+  checks_passed: z.boolean(),
+  branch: z.string().min(1),
+}).strict();
+
+export const CanonicalTeamWorkerSchema = z.object({
+  id: z.string().min(1),
+  role: z.string().min(1),
+  mission_id: z.string().min(1).optional(),
+  adapter: z.string().min(1),
+  run_id: z.string().min(1),
+  artifact_scope: z.string().min(1),
+  runtime_result_path: z.string().min(1).nullable(),
+  status: CanonicalTeamWorkerStatusSchema,
+  completion: z.enum(["complete", "incomplete"]).default("complete"),
+  started_at: z.string(),
+  finished_at: z.string().nullable(),
+  contract: CanonicalWorkerContractSchema.optional(),
+  blocked_reason: z.string().optional(),
+  outputs: z.array(CanonicalWorkerOutputSchema).optional(),
+  salvage: CanonicalWorkerSalvageSchema.optional(),
+}).strict();
+
+export const CanonicalTeamLeaderSchema = z.object({
+  role: z.string().min(1),
+  adapter: z.string().min(1),
+  status: CanonicalTeamLeaderStatusSchema,
+}).strict();
+
+export const CanonicalTeamStateSchema = z.object({
+  schema_version: z.literal("uh.team-run.v0"),
+  mission_id: z.string().min(1),
+  run_id: z.string().min(1),
+  status: CanonicalTeamStatusSchema,
+  started_at: z.string(),
+  finished_at: z.string().nullable(),
+  integration_report_path: z.string().min(1),
+  verification_status: z.enum(["passed", "failed", "blocked", "waived"]).nullable(),
+  admission_blocked_reason: z.string().min(1).optional(),
+  leader: CanonicalTeamLeaderSchema,
+  workers: z.array(CanonicalTeamWorkerSchema),
+}).strict();
+
+export type CanonicalTeamStatus = z.infer<typeof CanonicalTeamStatusSchema>;
+export type CanonicalTeamWorkerStatus = z.infer<typeof CanonicalTeamWorkerStatusSchema>;
+export type CanonicalTeamState = z.infer<typeof CanonicalTeamStateSchema>;
+export type CanonicalTeamWorker = z.infer<typeof CanonicalTeamWorkerSchema>;
+
+export function validateCanonicalTeamState(data: unknown): CanonicalTeamState {
+  return CanonicalTeamStateSchema.parse(data);
+}
diff --git a/tests/acceptance.test.ts b/tests/acceptance.test.ts
new file mode 100644
index 0000000..304341d
--- /dev/null
+++ b/tests/acceptance.test.ts
@@ -0,0 +1,593 @@
+import { beforeEach, describe, expect, test, vi } from "vitest";
+import { access, lstat, mkdtemp, mkdir, readFile, rm, stat, symlink, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { parse } from "yaml";
+import { spawnSync, type ChildProcess } from "node:child_process";
+import type { EventEmitter as NodeEventEmitter } from "node:events";
+import { AcceptanceEvidenceSchema, AcceptanceRegistrySchema } from "../src/schema/acceptance.js";
+import { validateMission } from "../src/schema/mission.js";
+import { applyTeamMissionOverrides, classifyAcceptance, collectFacts, compareAcceptanceFacts, loadAcceptanceRegistry, renderAcceptanceReport, runAcceptance, wrapperMechanismUnavailable } from "../src/harness/acceptance.js";
+
+const expected = { status: "passed", required_records: { denials: 3 } } as const;
+
+describe("acceptance evidence", () => {
+  test("schemas round-trip registry and evidence", () => {
+    const registry = AcceptanceRegistrySchema.parse({
+      schema_version: "uh.acceptance-registry.v0",
+      entries: { C1: { title: "Contracts", capability: "C1", mission: "missions/C1/mission.yaml", shape: "team", runtime: "oh-my-pi", expected: { status: "passed" }, notes: "" } },
+    });
+    expect(registry.entries.C1.freshness_days).toBe(30);
+    const evidence = AcceptanceEvidenceSchema.parse({
+    schema_version: "uh.acceptance-evidence.v0", capability: "C1", outcome: "passed", checked_at: "2026-09-15T00:00:00.000Z", harness_commit: "abc", runtime: "oh-my-pi", provider: "unknown", model: "unknown", cost_usd: "unknown", workspace: "T:/tmp/run", run_ids: [], mission_id: "c1", expected: { status: "passed" }, observed: { status: "passed" }, fact_sources: {}, mismatches: [], artifact_root: "T:/tmp/run/.harness",
+    });
+    expect(evidence.cost_usd).toBe("unknown");
+  });
+
+  test("compares matching, mismatching, and missing records", () => {
+    expect(compareAcceptanceFacts(expected, { status: "passed", denials: 3 })).toEqual([]);
+    expect(compareAcceptanceFacts(expected, { status: "passed", denials: 0 })[0].field).toBe("required_records.denials");
+    expect(compareAcceptanceFacts(expected, { status: "passed" })[0].observed).toBeUndefined();
+  });
+  test("normalizes canonical team worker and output facts", () => {
+    const mismatches = compareAcceptanceFacts(
+      { status: "passed", workers: { "worker-a": { status: "succeeded" } }, outputs: { "worker-a": "passed" } },
+      { status: "passed", workers: [{ id: "worker-a", status: "succeeded", outputs: [{ path: "out.txt", status: "passed" }] }] },
+    );
+    expect(mismatches).toEqual([]);
+  });
+
+  test("compares guardian and path acceptance facts", () => {
+    expect(compareAcceptanceFacts(
+      { status: "passed", guardian_receipt: true, path_style: "forward_slashes" },
+      { status: "passed", settlement_confirmed: true, guardian_receipt: true, guardian: { mode: "cache", path: "guardian.exe" }, path_style: "forward_slashes" },
+    )).toEqual([]);
+    expect(compareAcceptanceFacts(
+      { status: "passed", guardian_receipt: true, path_style: "forward_slashes" },
+      { status: "passed", path_style: "backslashes" },
+    ).map((mismatch) => mismatch.field)).toEqual(["guardian_receipt", "path_style"]);
+  });
+
+  test("classifies freshness and commit coherence", () => {
+    const now = new Date("2026-09-15T00:00:00.000Z");
+    expect(classifyAcceptance({ outcome: "passed", checked_at: "2026-09-14T23:00:00.000Z", harness_commit: "abc" }, 30, now, "abc")).toBe("proven");
+    expect(classifyAcceptance({ outcome: "passed", checked_at: "2026-09-14T23:00:00.000Z", harness_commit: "old" }, 30, now, "abc")).toBe("stale");
+    expect(classifyAcceptance({ outcome: "failed", checked_at: "2026-09-14T23:00:00.000Z", harness_commit: "abc" }, 30, now, "abc")).toBe("failed");
+    expect(classifyAcceptance(null, 30, now, "abc")).toBe("unproven");
+  });
+  test("renders evidence links relative to the generated report and omits absent evidence links", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-report-"));
+    await mkdir(path.join(root, "acceptance", "evidence", "C1"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), "schema_version: uh.acceptance-registry.v0\nentries:\n  C1:\n    title: Per-worker contracts\n    capability: C1\n    mission: missions/C1/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    expected: { status: passed }\n  S1:\n    title: Resource wave baseline\n    capability: S1\n    mission: missions/S1/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    expected: { status: passed }\n");
+    await writeFile(path.join(root, "acceptance", "evidence", "C1", "latest.json"), JSON.stringify({
+      schema_version: "uh.acceptance-evidence.v0", capability: "C1", outcome: "passed", checked_at: "2026-09-15T00:00:00.000Z", harness_commit: "unknown", runtime: "oh-my-pi", provider: "unknown", model: "unknown", cost_usd: "unknown", workspace: "T:/tmp/run", run_ids: [], mission_id: "c1", expected: { status: "passed" }, observed: { status: "passed" }, fact_sources: {}, mismatches: [], artifact_root: "T:/tmp/run/.harness",
+    }) + "\n");
+    const report = await renderAcceptanceReport(root, new Date("2026-09-15T00:00:00.000Z"), { evidenceRoot: path.join(root, "acceptance", "evidence") });
+    expect(report).toContain("[latest](../../acceptance/evidence/C1/latest.json)");
+    expect(report).toContain("| S1 | S1 | Resource wave baseline | unproven | — | oh-my-pi | — | — | — |");
+  });
+
+  test("renders generated report from a registry fixture", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-report-"));
+    await mkdir(path.join(root, "acceptance", "evidence", "C1"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), "schema_version: uh.acceptance-registry.v0\nentries:\n  C1:\n    title: Per-worker contracts\n    capability: C1\n    mission: missions/C1/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    expected: { status: passed }\n");
+    await writeFile(path.join(root, "acceptance", "evidence", "C1", "latest.json"), JSON.stringify({
+      schema_version: "uh.acceptance-evidence.v0", capability: "C1", outcome: "passed", checked_at: "2026-09-15T00:00:00.000Z", harness_commit: "unknown", runtime: "oh-my-pi", provider: "unknown", model: "unknown", cost_usd: "unknown", workspace: "T:/tmp/run", run_ids: [], mission_id: "c1", expected: { status: "passed" }, observed: { status: "passed" }, fact_sources: {}, mismatches: [], artifact_root: "T:/tmp/run/.harness",
+    }) + "\n");
+    const report = await renderAcceptanceReport(root, new Date("2026-09-15T00:00:00.000Z"), { evidenceRoot: path.join(root, "acceptance", "evidence") });
+    expect(report).toContain("| C1 | Per-worker contracts |");
+  });
+
+  test("records fact source selection across attempts", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-facts-"));
+    const missionRoot = path.join(root, ".harness", "missions", "fixture", "runs");
+    await mkdir(path.join(missionRoot, "001"), { recursive: true });
+    await mkdir(path.join(missionRoot, "002"), { recursive: true });
+    await writeFile(path.join(missionRoot, "001", "runtime-result.yaml"), "status: failed\nstop_code: stall\nturns: 1\n");
+    await writeFile(path.join(missionRoot, "002", "runtime-result.yaml"), "status: passed\nturns: 2\n");
+    const facts = await collectFacts(root, "fixture", { status: "passed", fact_sources: { status: "last", stop_code: "first" } });
+    expect(facts.runIds).toEqual(["001", "002"]);
+    expect(facts.observed.status).toBe("passed");
+    expect(facts.observed.stop_code).toBe("stall");
+    expect(facts.fact_sources.status).toBe("last");
+    expect(facts.fact_sources.stop_code).toBe("first");
+  });
+
+  const guardAllow = (tool: string): string => JSON.stringify({ ts: "2026-09-22T00:00:00.000Z", tool, class: "allow", target: `src/${tool.toLowerCase()}.ts` });
+  const guardDenial = (guardClass: string): string => JSON.stringify({ ts: "2026-09-22T00:00:00.000Z", tool: "Bash", class: guardClass, target: "out/x.txt", reason: guardClass });
+
+  test("reads tool_guard_lines from the run's guard log without a terminal result", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-guardlog-"));
+    const runDir = path.join(root, ".harness", "missions", "fixture", "runs", "001");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(path.join(runDir, "tool-guard.log"), [guardDenial("write_outside"), guardDenial("git_mutation"), guardDenial("package_install"), ""].join("\n"));
+    const expected = { status: "failed", required_records: { tool_guard_lines: 3 } } as const;
+    const facts = await collectFacts(root, "fixture", expected);
+    expect(facts.observed.tool_guard_lines).toBe(3);
+    expect(facts.observed.tool_guard_allow_lines).toBe(0);
+    expect(facts.fact_sources.tool_guard_lines).toBe("first");
+    expect(compareAcceptanceFacts(expected, facts.observed)).toEqual([{ field: "status", expected: "failed", observed: undefined }]);
+  });
+
+  test("counts guard denials and allow lines separately", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-guardlog-"));
+    const runDir = path.join(root, ".harness", "missions", "fixture", "runs", "001");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(path.join(runDir, "tool-guard.log"), [
+      guardAllow("Read"),
+      guardAllow("Glob"),
+      guardAllow("Read"),
+      guardDenial("git_mutation"),
+      guardDenial("package_install"),
+      guardDenial("write_outside"),
+      "",
+    ].join("\n"));
+    const facts = await collectFacts(root, "fixture");
+    expect(facts.observed.tool_guard_lines).toBe(3);
+    expect(facts.observed.tool_guard_allow_lines).toBe(3);
+    expect(facts.fact_sources.tool_guard_lines).toBe("first");
+    expect(facts.fact_sources.tool_guard_allow_lines).toBe("first");
+  });
+
+  test("counts an unparseable guard log line as a denial only when it says deny", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-guardlog-"));
+    const runDir = path.join(root, ".harness", "missions", "fixture", "runs", "001");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(path.join(runDir, "tool-guard.log"), ["not json at all", '{"class":"deny"', ""].join("\n"));
+    const facts = await collectFacts(root, "fixture");
+    expect(facts.observed.tool_guard_lines).toBe(1);
+    expect(facts.observed.tool_guard_allow_lines).toBe(0);
+  });
+
+  test("prefers the guard log of the latest run that has one", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-guardlog-"));
+    const runsRoot = path.join(root, ".harness", "missions", "fixture", "runs");
+    await mkdir(path.join(runsRoot, "001"), { recursive: true });
+    await mkdir(path.join(runsRoot, "002"), { recursive: true });
+    await writeFile(path.join(runsRoot, "001", "tool-guard.log"), [guardDenial("write_outside"), guardDenial("git_mutation"), guardDenial("package_install"), ""].join("\n"));
+    await writeFile(path.join(runsRoot, "002", "tool-guard.log"), [guardDenial("write_outside"), guardDenial("git_mutation"), guardDenial("package_install"), guardDenial("write_outside"), guardDenial("git_mutation")].join("\n"));
+    const facts = await collectFacts(root, "fixture");
+    expect(facts.runIds).toEqual(["001", "002"]);
+    expect(facts.observed.tool_guard_lines).toBe(5);
+    expect(facts.fact_sources.tool_guard_lines).toBe("last");
+  });
+
+  test("keeps the last available guard log when later runs lack one", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-guardlog-"));
+    const runsRoot = path.join(root, ".harness", "missions", "fixture", "runs");
+    await mkdir(path.join(runsRoot, "001"), { recursive: true });
+    await mkdir(path.join(runsRoot, "002"), { recursive: true });
+    await writeFile(path.join(runsRoot, "001", "tool-guard.log"), [guardDenial("write_outside"), guardDenial("git_mutation"), guardDenial("package_install"), ""].join("\n"));
+    const facts = await collectFacts(root, "fixture");
+    expect(facts.observed.tool_guard_lines).toBe(3);
+    expect(facts.observed.tool_guard_allow_lines).toBe(0);
+    expect(facts.fact_sources.tool_guard_lines).toBe("first");
+  });
+
+  test("renders failed evidence for attempted fixture-only missions", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-fixture-"));
+    await mkdir(path.join(root, "acceptance", "evidence", "R10-stall"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), "schema_version: uh.acceptance-registry.v0\nentries:\n  R10-stall:\n    title: Stall recovery\n    capability: R10\n    mission: missions/R10-stall/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    real_mission: not_applicable\n    expected: { status: passed }\n");
+    await writeFile(path.join(root, "acceptance", "evidence", "R10-stall", "latest.json"), JSON.stringify({
+      schema_version: "uh.acceptance-evidence.v0", capability: "R10-stall", outcome: "failed", checked_at: "2026-09-15T00:00:00.000Z", harness_commit: "abc", runtime: "oh-my-pi", provider: "unknown", model: "unknown", cost_usd: "unknown", workspace: "T:/tmp/run", run_ids: ["001"], mission_id: "r10", expected: { status: "passed" }, observed: { status: "failed" }, fact_sources: {}, mismatches: [{ field: "status", expected: "passed", observed: "failed" }], artifact_root: "T:/tmp/run/.harness",
+    }) + "\n");
+    const report = await renderAcceptanceReport(root, new Date("2026-09-15T00:00:00.000Z"), { evidenceRoot: path.join(root, "acceptance", "evidence") });
+    expect(report).toContain("| R10-stall | R10 | Stall recovery | failed |");
+  });
+
+  test("committed acceptance report is generated from current registry", async () => {
+    const emptyEvidence = await mkdtemp(path.join(tmpdir(), "acceptance-empty-evidence-"));
+    const report = await renderAcceptanceReport(process.cwd(), new Date(), { evidenceRoot: emptyEvidence });
+    const committed = await readFile(path.join(process.cwd(), "docs", "acceptance", "README.md"), "utf8");
+    expect(committed.replace(/\r\n/g, "\n")).toBe(report.replace(/\r\n/g, "\n"));
+  });
+  test("the drift check ignores local evidence while the generator keeps rendering it", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-drift-"));
+    await mkdir(path.join(root, "acceptance", "evidence", "C1"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), "schema_version: uh.acceptance-registry.v0\nentries:\n  C1:\n    title: Per-worker contracts\n    capability: C1\n    mission: missions/C1/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    expected: { status: passed }\n");
+    await writeFile(path.join(root, "acceptance", "evidence", "C1", "latest.json"), JSON.stringify({
+      schema_version: "uh.acceptance-evidence.v0", capability: "C1", outcome: "passed", checked_at: "2026-09-15T00:00:00.000Z", harness_commit: "unknown", runtime: "oh-my-pi", provider: "unknown", model: "unknown", cost_usd: "unknown", workspace: "T:/tmp/run", run_ids: [], mission_id: "c1", expected: { status: "passed" }, observed: { status: "passed" }, fact_sources: {}, mismatches: [], artifact_root: "T:/tmp/run/.harness",
+    }) + "\n");
+    const now = new Date("2026-09-15T00:00:00.000Z");
+    expect(await renderAcceptanceReport(root, now, { evidenceRoot: path.join(root, "acceptance", "evidence") })).toContain("| C1 | C1 | Per-worker contracts | proven |");
+    const emptyEvidence = await mkdtemp(path.join(tmpdir(), "acceptance-drift-empty-"));
+    expect(await renderAcceptanceReport(root, now, { evidenceRoot: emptyEvidence })).toContain("| C1 | C1 | Per-worker contracts | unproven |");
+  });
+  test("refuses acceptance run without workspace", async () => {
+    await expect(runAcceptance(process.cwd())).rejects.toThrow(/--workspace/);
+  });
+});
+
+describe("command-code fleet registry entries", () => {
+  test("every oh-my-pi entry has a -cmdc command-code sibling with identical capability and expectations", async () => {
+    const registry = await loadAcceptanceRegistry(process.cwd());
+    const ohMyPiIds = Object.keys(registry.entries).filter((id) => registry.entries[id].runtime === "oh-my-pi");
+    expect(ohMyPiIds.length).toBe(17);
+    for (const id of ohMyPiIds) {
+      const sibling = registry.entries[`${id}-cmdc`];
+      expect(sibling, `${id}-cmdc must be registered`).toBeDefined();
+      expect(sibling.runtime).toBe("command-code");
+      expect(sibling.model).toBe("qwen/qwen3.8-flash");
+      expect(sibling.capability).toBe(registry.entries[id].capability);
+      expect(sibling.expected).toEqual(registry.entries[id].expected);
+      expect(sibling.real_mission).toBe(registry.entries[id].real_mission);
+    }
+    for (const [id, entry] of Object.entries(registry.entries)) {
+      if (!id.endsWith("-cmdc")) continue;
+      expect(registry.entries[id.slice(0, -"-cmdc".length)], `${id} must mirror a registry entry`).toBeDefined();
+      if (id === "R10-stall-cmdc") {
+        expect(entry.real_mission).toBe("not_applicable");
+        expect(entry.reason).toMatch(/print mode/);
+      } else {
+        expect(entry.real_mission).toBe("real");
+        await expect(access(path.join(process.cwd(), "acceptance", entry.mission))).resolves.toBeUndefined();
+      }
+    }
+  });
+
+  test("every real -cmdc mission file validates and uses only command-code adapters", async () => {
+    const registry = await loadAcceptanceRegistry(process.cwd());
+    for (const [id, entry] of Object.entries(registry.entries)) {
+      if (!id.endsWith("-cmdc") || entry.real_mission !== "real") continue;
+      const missionPath = path.join(process.cwd(), "acceptance", entry.mission);
+      const mission = validateMission(parse(await readFile(missionPath, "utf8")));
+      expect(mission.id).toBe(`${id.toLowerCase()}-acceptance`);
+      if (mission.shape !== "team" || !mission.team) continue;
+      expect(mission.team.leader.adapter).toBe("command-code");
+      for (const worker of mission.team.workers) expect(worker.adapter).toBe("command-code");
+    }
+  });
+
+  test("renders the command-code fleet entries in the generated report", async () => {
+    const emptyEvidence = await mkdtemp(path.join(tmpdir(), "acceptance-fleet-evidence-"));
+    const report = await renderAcceptanceReport(process.cwd(), new Date(), { evidenceRoot: emptyEvidence });
+    expect(report).toContain("| C1-cmdc | C1 | Per-worker contracts | unproven | — | command-code | qwen/qwen3.8-flash | — | — |");
+    expect(report).toContain("| S3-unknown-cost-cmdc | S3 | Unknown cost admission | unproven | — | command-code | qwen/qwen3.8-flash | — | — |");
+    expect(report).toContain("| R10-stall-cmdc | R10 | Stall recovery | fixture_only | — | command-code | qwen/qwen3.8-flash | — | — |");
+  });
+});
+
+describe("acceptance runtime override honesty", () => {
+  test("rewrites every worker and leader adapter and injects the model in the copied team mission", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-override-"));
+    const missionPath = path.join(root, "mission.yaml");
+    await writeFile(missionPath, [
+      "schema_version: uh.mission.v0",
+      "id: c1-acceptance",
+      "title: Per-worker contracts",
+      "workflow_profile: bugfix-contained",
+      "objective: Create the declared worker outputs under out/.",
+      "shape: team",
+      "team:",
+      "  resources: { max_parallel: 2 }",
+      "  workers:",
+      "    - adapter: oh-my-pi",
+      "      role: worker-a",
+      "      objective: Create out/worker-a.txt containing exactly the single line worker-a, then stop.",
+      "      runtime_config_overrides: { thinking: low }",
+      "      limits: { max_turns: 12 }",
+      "    - adapter: oh-my-pi",
+      "      role: worker-b",
+      "      objective: Create out/worker-b.txt containing exactly the single line worker-b, then stop.",
+      "      runtime_config_overrides: { thinking: low }",
+      "      limits: { max_turns: 12 }",
+      "  leader: { adapter: oh-my-pi }",
+      "",
+    ].join("\n"), "utf8");
+    await applyTeamMissionOverrides(missionPath, { runtime: "command-code", model: "qwen/qwen3.8-flash" });
+    const mission = parse(await readFile(missionPath, "utf8")) as {
+      team: {
+        leader: { adapter: string };
+        workers: { adapter: string; runtime_config_overrides: Record<string, unknown>; limits?: Record<string, unknown> }[];
+      };
+    };
+    expect(mission.team.leader.adapter).toBe("command-code");
+    expect(mission.team.workers.map((worker) => worker.adapter)).toEqual(["command-code", "command-code"]);
+    for (const worker of mission.team.workers) {
+      expect(worker.runtime_config_overrides.model).toBe("qwen/qwen3.8-flash");
+      expect(worker.runtime_config_overrides.thinking).toBe("low");
+      expect(worker.limits).toEqual({ max_turns: 12 });
+    }
+  });
+
+  test("wrapper mechanism support follows the effective runtime", () => {
+    expect(wrapperMechanismUnavailable("G2", "oh-my-pi")).toBe(false);
+    expect(wrapperMechanismUnavailable("G2", "command-code")).toBe(true);
+    expect(wrapperMechanismUnavailable("G2-cmdc", "command-code")).toBe(false);
+    expect(wrapperMechanismUnavailable("G2-cmdc", "oh-my-pi")).toBe(true);
+    expect(wrapperMechanismUnavailable("S3-unknown-cost", "oh-my-pi")).toBe(false);
+    expect(wrapperMechanismUnavailable("S3-unknown-cost", "command-code")).toBe(true);
+    expect(wrapperMechanismUnavailable("S3-unknown-cost-cmdc", "command-code")).toBe(false);
+    expect(wrapperMechanismUnavailable("S3-unknown-cost-cmdc", "oh-my-pi")).toBe(true);
+    expect(wrapperMechanismUnavailable("R10-controller-loss", "command-code")).toBe(false);
+    expect(wrapperMechanismUnavailable("R10-controller-loss-cmdc", "oh-my-pi")).toBe(false);
+    expect(wrapperMechanismUnavailable("C1", "command-code")).toBe(false);
+  });
+
+  test("wrapper-dependent capabilities fail with wrapper_unavailable evidence instead of launching", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-wrapper-"));
+    await mkdir(path.join(root, "acceptance"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), "schema_version: uh.acceptance-registry.v0\nentries:\n  G2:\n    title: Denial budget\n    capability: G2\n    mission: missions/G2/mission.yaml\n    shape: single\n    runtime: oh-my-pi\n    expected: { status: passed, stop_code: denial_budget, resumed: true, required_records: { denials: 3 } }\n");
+    const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-wrapper-ws-"));
+    const evidence = await runAcceptance(root, { workspace, runtime: "command-code", cliPath: "node" });
+    expect(evidence).toHaveLength(1);
+    expect(evidence[0].outcome).toBe("failed");
+    expect(evidence[0].runtime).toBe("command-code");
+    expect(evidence[0].observed.reason).toBe("wrapper_unavailable");
+    expect(evidence[0].mismatches.map((mismatch) => mismatch.observed)).toContain("wrapper_unavailable");
+    expect(evidence[0].run_ids).toEqual([]);
+    expect(evidence[0].cli).toEqual({ exit_code: null, stderr_tail: "", stdout_tail: "" });
+    const persisted = JSON.parse(await readFile(path.join(root, "acceptance", "evidence", "G2", "latest.json"), "utf8")) as { observed: { reason?: string }; outcome: string; cli?: { exit_code?: number | null } };
+    expect(persisted.outcome).toBe("failed");
+    expect(persisted.observed.reason).toBe("wrapper_unavailable");
+    expect(persisted.cli?.exit_code).toBeNull();
+  });
+});
+
+const spawnState = vi.hoisted(() => ({
+  calls: [] as { args: string[]; env: NodeJS.ProcessEnv | undefined }[],
+  missionScripts: [] as { code: number; stdout?: string; stderr?: string; resultFile?: string }[],
+  blockedNodeModules: new Set<string>(),
+}));
+
+vi.mock("node:child_process", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("node:child_process")>();
+  const { EventEmitter } = await import("node:events");
+  const { writeFileSync } = await import("node:fs");
+  const nodePath = await import("node:path");
+  const spawn = (...spawnArgs: unknown[]) => {
+    const [, args, options] = spawnArgs as [string, string[], { env?: NodeJS.ProcessEnv } | undefined];
+    const child = Object.assign(new EventEmitter(), {
+      stdout: new EventEmitter(),
+      stderr: new EventEmitter(),
+    }) as unknown as ChildProcess & { stdout: NodeEventEmitter; stderr: NodeEventEmitter };
+    spawnState.calls.push({ args: [...args], env: options?.env ? { ...options.env } : undefined });
+    const script = args[1] === "mission" ? spawnState.missionScripts.shift() : undefined;
+    queueMicrotask(() => {
+      if (script?.resultFile && args[2] === "run" && typeof args[3] === "string" && args[3].endsWith("mission.yaml")) {
+        writeFileSync(nodePath.join(nodePath.dirname(args[3]), "runtime-result.yaml"), script.resultFile, "utf8");
+      }
+      if (script?.stdout !== undefined) child.stdout.emit("data", script.stdout);
+      if (script?.stderr !== undefined) child.stderr.emit("data", script.stderr);
+      child.emit("close", script ? script.code : 0, null);
+    });
+    return child;
+  };
+  return { ...actual, spawn };
+});
+
+vi.mock("node:fs/promises", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("node:fs/promises")>();
+  const stat = actual.stat;
+  const mockedStat = ((value: unknown, options?: unknown) =>
+    typeof value === "string" && spawnState.blockedNodeModules.has(value)
+      ? Promise.reject(Object.assign(new Error(`ENOENT: no such file or directory, stat ${value}`), { code: "ENOENT" }))
+      : stat(value as Parameters<typeof stat>[0], options as never)) as typeof stat;
+  return { ...actual, stat: mockedStat };
+});
+
+beforeEach(() => {
+  spawnState.calls.length = 0;
+  spawnState.missionScripts.length = 0;
+  spawnState.blockedNodeModules.clear();
+});
+
+describe("acceptance support shim PATH", () => {
+  test("prepends the copied support directory to PATH only for the support_shim entry", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-shim-"));
+    for (const name of ["shim", "plain"]) {
+      await mkdir(path.join(root, "acceptance", "missions", name), { recursive: true });
+      await writeFile(
+        path.join(root, "acceptance", "missions", name, "mission.yaml"),
+        ["schema_version: uh.mission.v0", "id: shim-fixture", "title: Fixture", "workflow_profile: bugfix-contained", "objective: Create out/report.txt.", ""].join("\n"),
+        "utf8",
+      );
+    }
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), [
+      "schema_version: uh.acceptance-registry.v0",
+      "entries:",
+      "  G1-cmdc-hook-broken:",
+      "    title: Command Code broken guard hook",
+      "    capability: G1",
+      "    mission: missions/shim/mission.yaml",
+      "    shape: single",
+      "    runtime: command-code",
+      "    support_shim: cmdc.cmd",
+      "    expected: { status: failed, stop_code: policy, resumed: false, required_records: { guard_armed: false } }",
+      "  G1-cmdc-shell-policy:",
+      "    title: Command Code shell protected-path policy",
+      "    capability: G1",
+      "    mission: missions/plain/mission.yaml",
+      "    shape: single",
+      "    runtime: command-code",
+      "    expected: { status: failed, stop_code: policy, resumed: false, required_records: { guard_armed: true } }",
+      "",
+    ].join("\n"), "utf8");
+    const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-shim-ws-"));
+    const evidence = await runAcceptance(root, { workspace, cliPath: "node" });
+    expect(evidence).toHaveLength(2);
+    const pathKey = Object.keys(process.env).find((key) => key.toLowerCase() === "path") ?? "PATH";
+    const launches = spawnState.calls.filter((call) => call.args[1] === "mission" && call.args[2] === "run");
+    expect(launches).toHaveLength(2);
+    const launchFor = (runRoot: string) => launches.find((call) => call.args.includes(runRoot));
+    const shimLaunch = launchFor(evidence[0].workspace);
+    const plainLaunch = launchFor(evidence[1].workspace);
+    expect(shimLaunch).toBeDefined();
+    expect(plainLaunch).toBeDefined();
+    expect(shimLaunch?.env?.[pathKey]).toBe(`${path.join(evidence[0].workspace, "acceptance", "support")}${path.delimiter}${process.env[pathKey] ?? ""}`);
+    expect(plainLaunch?.env?.[pathKey]).toBe(process.env[pathKey]);
+    expect(evidence[0].observed.shim_on_path).toBe(true);
+    expect(evidence[1].observed.shim_on_path).toBeUndefined();
+  });
+});
+
+describe("G1-cmdc runner registration", () => {
+  test("only the hook-broken entry declares the cmdc.cmd support shim", async () => {
+    const registry = await loadAcceptanceRegistry(process.cwd());
+    const declaring = Object.entries(registry.entries).filter(([, entry]) => entry.support_shim !== undefined).map(([id]) => id);
+    expect(declaring).toEqual(["G1-cmdc-hook-broken"]);
+    expect(registry.entries["G1-cmdc-hook-broken"].support_shim).toBe("cmdc.cmd");
+  });
+
+  test("G1-cmdc-guard budget fits the model while expectations stay untouched", async () => {
+    const registry = await loadAcceptanceRegistry(process.cwd());
+    const entry = registry.entries["G1-cmdc-guard"];
+    expect(entry.expected).toEqual({
+      status: "passed",
+      required_files: ["out/cmdc-guard-report.txt"],
+      required_records: { denials: 3, tool_guard_lines: 3 },
+    });
+    expect(entry.notes).toContain("20260922T040135Z-6c706a");
+    expect(entry.notes).toContain("48");
+    expect(entry.notes).toMatch(/not changed/);
+    const mission = parse(await readFile(path.join(process.cwd(), "acceptance", entry.mission), "utf8")) as { runtime_config_overrides?: { max_turns?: number; limits?: { max_turns?: number } } };
+    expect(mission.runtime_config_overrides?.max_turns).toBe(40);
+    expect(mission.runtime_config_overrides?.limits?.max_turns).toBe(40);
+  });
+});
+
+describe("acceptance campaign runtime", () => {
+  const fixtureMission = ["schema_version: uh.mission.v0", "id: fixture-acceptance", "title: Fixture", "workflow_profile: bugfix-contained", "objective: Create out/report.txt.", ""].join("\n");
+
+  async function writeSingleFixture(root: string, capability: string, runtime: string): Promise<void> {
+    await mkdir(path.join(root, "acceptance", "missions", capability), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "missions", capability, "mission.yaml"), fixtureMission, "utf8");
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), [
+      "schema_version: uh.acceptance-registry.v0",
+      "entries:",
+      `  ${capability}:`,
+      "    title: Fixture",
+      `    capability: ${capability}`,
+      `    mission: missions/${capability}/mission.yaml`,
+      "    shape: single",
+      `    runtime: ${runtime}`,
+      "    expected: { status: passed }",
+      "",
+    ].join("\n"), "utf8");
+  }
+
+  test("records the mission CLI outcome and surfaces stderr on FAIL when no status is observed", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-cli-"));
+    await mkdir(path.join(root, "acceptance", "missions", "C2"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "missions", "C2", "mission.yaml"), fixtureMission, "utf8");
+    await writeFile(path.join(root, "acceptance", "registry.yaml"), [
+      "schema_version: uh.acceptance-registry.v0",
+      "entries:",
+      "  C1:",
+      "    title: First",
+      "    capability: C1",
+      "    mission: missions/C1/mission.yaml",
+      "    shape: single",
+      "    runtime: command-code",
+      "    expected: { status: passed }",
+      "  C2:",
+      "    title: Second",
+      "    capability: C2",
+      "    mission: missions/C2/mission.yaml",
+      "    shape: single",
+      "    runtime: command-code",
+      "    expected: { status: passed }",
+      "",
+    ].join("\n"), "utf8");
+    await mkdir(path.join(root, "acceptance", "missions", "C1"), { recursive: true });
+    await writeFile(path.join(root, "acceptance", "missions", "C1", "mission.yaml"), fixtureMission, "utf8");
+    const stderr = `Error: Cannot find package 'commander'\n${"x".repeat(2100)}\n`;
+    spawnState.missionScripts.push({ code: 1, stderr }, { code: 1, stderr, resultFile: "status: passed\n" });
+    const logs: string[] = [];
+    const logSpy = vi.spyOn(console, "log").mockImplementation((line?: unknown) => { logs.push(String(line)); });
+    let evidence: Awaited<ReturnType<typeof runAcceptance>>;
+    try {
+      const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-cli-ws-"));
+      evidence = await runAcceptance(root, { workspace, cliPath: "node" });
+    } finally {
+      logSpy.mockRestore();
+    }
+    expect(evidence).toHaveLength(2);
+    expect(evidence[0].observed.status).toBeUndefined();
+    expect(evidence[0].cli).toEqual({ exit_code: 1, stderr_tail: stderr.slice(-2048), stdout_tail: "" });
+    expect(evidence[0].cli?.stderr_tail).toHaveLength(2048);
+    expect(evidence[1].observed.status).toBe("failed");
+    const failLines = logs.filter((line) => line.startsWith("FAIL "));
+    expect(failLines).toHaveLength(2);
+    expect(failLines[0].endsWith("Error: Cannot find package 'commander'")).toBe(true);
+    expect(failLines[1].endsWith("Error: Cannot find package 'commander'")).toBe(false);
+    const persisted = JSON.parse(await readFile(path.join(root, "acceptance", "evidence", "C1", "latest.json"), "utf8")) as { cli?: { exit_code?: number; stderr_tail?: string } };
+    expect(persisted.cli?.exit_code).toBe(1);
+    expect(persisted.cli?.stderr_tail).toBe(stderr.slice(-2048));
+  });
+
+  test("recreates a dangling campaign node_modules junction instead of reusing it", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-junction-"));
+    await mkdir(path.join(root, "dist"), { recursive: true });
+    await mkdir(path.join(root, "src"), { recursive: true });
+    await mkdir(path.join(root, "node_modules"), { recursive: true });
+    await writeFile(path.join(root, "dist", "cli.js"), "process.exit(0);\n", "utf8");
+    await writeFile(path.join(root, "src", "index.js"), "export {};\n", "utf8");
+    await writeFile(path.join(root, "node_modules", ".marker"), "source\n", "utf8");
+    await writeSingleFixture(root, "C1", "command-code");
+    const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-junction-ws-"));
+    await runAcceptance(root, { workspace });
+    const junction = path.join(workspace, ".acceptance-runtime", "node_modules");
+    expect((await lstat(junction)).isSymbolicLink()).toBe(true);
+    await expect(readFile(path.join(junction, ".marker"), "utf8")).resolves.toBe("source\n");
+    await rm(junction, { recursive: true, force: true });
+    await symlink(path.join(root, "node_modules-missing"), junction, "junction");
+    await expect(stat(junction)).rejects.toMatchObject({ code: "ENOENT" });
+    await runAcceptance(root, { workspace });
+    await expect(readFile(path.join(junction, ".marker"), "utf8")).resolves.toBe("source\n");
+  });
+
+  test("refuses loudly with exit 2 when no node_modules exists above the source root", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-nonodes-"));
+    await writeSingleFixture(root, "C1", "command-code");
+    let current = path.resolve(root);
+    for (;;) {
+      spawnState.blockedNodeModules.add(path.join(current, "node_modules"));
+      const parent = path.dirname(current);
+      if (parent === current) break;
+      current = parent;
+    }
+    const exitSpy = vi.spyOn(process, "exit").mockImplementation((code?: string | number | null | undefined): never => {
+      throw new Error(`process.exit(${code})`);
+    });
+    const errorSpy = vi.spyOn(console, "error").mockImplementation(() => {});
+    try {
+      const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-nonodes-ws-"));
+      await expect(runAcceptance(root, { workspace })).rejects.toThrow("process.exit(2)");
+      expect(errorSpy).toHaveBeenCalledWith(expect.stringContaining(path.resolve(root)));
+    } finally {
+      exitSpy.mockRestore();
+      errorSpy.mockRestore();
+    }
+  });
+
+  test("sets git core.longpaths at workspace init on Windows only", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "acceptance-longpaths-"));
+    await writeSingleFixture(root, "C1", "command-code");
+    const workspace = await mkdtemp(path.join(tmpdir(), "acceptance-longpaths-ws-"));
+    await runAcceptance(root, { workspace, cliPath: "node" });
+    const longpathsCalls = spawnState.calls.filter((call) => call.args.includes("core.longpaths"));
+    if (process.platform === "win32") {
+      expect(longpathsCalls.map((call) => call.args)).toContainEqual(["config", "core.longpaths", "true"]);
+    } else {
+      expect(longpathsCalls).toHaveLength(0);
+    }
+  });
+
+  test.skipIf(process.platform !== "win32")("costless-wrapper-cmdc spawns a .cmd shim through its node entry point", async () => {
+    const shimDir = await mkdtemp(path.join(tmpdir(), "acceptance-cmdc-"));
+    await writeFile(path.join(shimDir, "stub-cmdc.mjs"), [
+      "process.stdout.write(JSON.stringify({ usage: { command: 'stub' }, args: process.argv.slice(2) }) + '\\n');",
+      "process.exit(3);",
+      "",
+    ].join("\n"), "utf8");
+    await writeFile(path.join(shimDir, "cmdc.cmd"), '@ECHO off\r\n"%dp0%\\stub-cmdc.mjs" %*\r\n', "utf8");
+    const wrapper = path.join(process.cwd(), "acceptance", "support", "costless-wrapper-cmdc.mjs");
+    const result = spawnSync(process.execPath, [wrapper, "--root", shimDir], {
+      encoding: "utf8",
+      env: { ...process.env, PATH: `${shimDir}${path.delimiter}${process.env.PATH ?? ""}` },
+    });
+    expect(result.status).toBe(3);
+    expect(result.stdout?.trim()).toBe(JSON.stringify({ args: ["--root", shimDir] }));
+  });
+});
diff --git a/tests/acp.test.ts b/tests/acp.test.ts
new file mode 100644
index 0000000..53f44b8
--- /dev/null
+++ b/tests/acp.test.ts
@@ -0,0 +1,325 @@
+import { describe, expect, test } from "vitest";
+import { execFileSync } from "node:child_process";
+import { mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { parse } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { proposeMission } from "../src/harness/propose.js";
+import { AcpClient, checkAcp, extractAcpAgentText, planAcpRun, runAcp, type AcpClientOptions } from "../src/adapters/acp.js";
+import { AcpRuntimeConfigSchema, AcpSessionPromptResultSchema } from "../src/schema/acp.js";
+import { validateRuntimeResult } from "../src/schema/artifacts.js";
+
+/** A transport-less client: `start`/`stop`/`writeMessage` are local, no process. */
+class SilentAgentClient extends AcpClient {
+  public sent: Record<string, unknown>[] = [];
+  override async start(): Promise<void> {
+    this.connected = true;
+    if (this.cancellationSignal) {
+      this.abortListener = () => {
+        this.rejectAll(new Error("ACP client cancelled"));
+      };
+      if (this.cancellationSignal.aborted) this.abortListener();
+      else this.cancellationSignal.addEventListener("abort", this.abortListener, { once: true });
+    }
+  }
+  override async stop(): Promise<void> {
+    await super.stop();
+  }
+  protected override writeMessage(message: Record<string, unknown>): void {
+    this.sent.push(message);
+  }
+}
+
+/**
+ * A full ACP v1 wire fake. It drives the real `AcpClient` request path
+ * (framing + correlation) and answers in camelCase, so tests exercise the code
+ * — not a bypassing mock.
+ */
+class FakeAgentClient extends AcpClient {
+  public sent: Record<string, unknown>[] = [];
+  public finalText = "acp success output";
+  public stopReason = "end_turn";
+  constructor(private onPrompt: () => void | Promise<void>, options: AcpClientOptions) {
+    super("node", [], process.cwd(), process.env, options);
+  }
+  override async start(): Promise<void> {
+    this.connected = true;
+  }
+  override async stop(): Promise<void> {
+    this.connected = false;
+  }
+  protected override writeMessage(message: Record<string, unknown>): void {
+    this.sent.push(message);
+    const id = message.id as number;
+    if (message.method === "initialize") {
+      this.respond(id, { protocolVersion: 1, agentInfo: { name: "fake-agent", version: "9.9.9" } });
+    } else if (message.method === "session/new") {
+      this.respond(id, { sessionId: "sess-123" });
+    } else if (message.method === "session/prompt") {
+      void Promise.resolve(this.onPrompt()).then(() => {
+        this.handleChunk(`${JSON.stringify({
+          jsonrpc: "2.0",
+          method: "session/update",
+          params: { update: { sessionUpdate: "agent_message_chunk", content: { type: "text", text: this.finalText } } },
+        })}\n`);
+        this.handleChunk(`${JSON.stringify({
+          jsonrpc: "2.0",
+          id,
+          result: { stopReason: this.stopReason, usage: { inputTokens: 50, outputTokens: 20, totalTokens: 70 } },
+        })}\n`);
+      });
+    }
+  }
+  private respond(id: number, result: unknown): void {
+    this.handleChunk(`${JSON.stringify({ jsonrpc: "2.0", id, result })}\n`);
+  }
+}
+
+async function missionFixture(prefix: string) {
+  const root = await mkdtemp(path.join(tmpdir(), prefix));
+  await initializeHarness(root);
+  await addAdapter(root, "acp");
+  execFileSync("git", ["init", "--quiet"], { cwd: root });
+  await writeFile(path.join(root, "input.txt"), "hello acp");
+  execFileSync("git", ["add", "--all"], { cwd: root });
+  execFileSync("git", ["-c", "user.name=UH Test", "-c", "user.email=test@example.com", "commit", "--quiet", "-m", "init"], { cwd: root });
+  const proposeResult = await proposeMission(root, {
+    id: "acp-demo",
+    title: "ACP Demo Mission",
+    objective: "Perform task through ACP",
+    workflow: "research-docs",
+    expectedOutputs: ["output.txt"],
+    completionCriteria: ["output exists"],
+  });
+  const missionPath = typeof proposeResult === "string" ? proposeResult : proposeResult.path;
+  return { root, missionPath };
+}
+
+describe("ACP (Agent-Client Protocol) schema", () => {
+  test("defaults an integer protocol version and a bounded timeout", () => {
+    const parsed = AcpRuntimeConfigSchema.parse({});
+    expect(parsed.server_command).toBe("acp-agent");
+    expect(parsed.protocol_version).toBe(1);
+    expect(parsed.timeout_ms).toBe(600_000);
+  });
+
+  test("rejects unknown runtime_config keys and a string protocol version", () => {
+    expect(() => AcpRuntimeConfigSchema.parse({ server_arg: ["--x"] })).toThrow();
+    expect(() => AcpRuntimeConfigSchema.parse({ protocol_version: "1.0" })).toThrow();
+  });
+
+  test("ACP prompt stop reasons match the v1 enum", () => {
+    expect(AcpSessionPromptResultSchema.parse({ stopReason: "max_tokens" }).stopReason).toBe("max_tokens");
+    expect(AcpSessionPromptResultSchema.parse({}).stopReason).toBe("end_turn");
+    expect(() => AcpSessionPromptResultSchema.parse({ stopReason: "max_turns" })).toThrow();
+  });
+});
+
+describe("AcpClient JSON-RPC framing and lifecycle", () => {
+  test("reassembles a response split across partial-buffer writes", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    await client.start();
+    const pending = client.request("initialize", {});
+    client.handleChunk('{"jsonrpc":"2.0","id":1,"res');
+    client.handleChunk('ult":{"ok":true}}\n');
+    await expect(pending).resolves.toEqual({ ok: true });
+  });
+
+  test("maps a JSON-RPC error response to a rejected request", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    await client.start();
+    const pending = client.request("session/prompt");
+    client.handleChunk(`${JSON.stringify({ jsonrpc: "2.0", id: 1, error: { code: -32000, message: "boom" } })}\n`);
+    await expect(pending).rejects.toThrow("ACP error -32000: boom");
+  });
+
+  test("dispatches inbound notifications with their params", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    const seen: Array<[string, Record<string, unknown>]> = [];
+    client.onNotification((method, params) => seen.push([method, params]));
+    await client.start();
+    client.handleChunk(`${JSON.stringify({ jsonrpc: "2.0", method: "session/update", params: { update: { sessionUpdate: "x" } } })}\n`);
+    expect(seen).toEqual([["session/update", { update: { sessionUpdate: "x" } }]]);
+  });
+
+  test("answers agent→client requests so the agent never hangs", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    await client.start();
+    client.handleChunk(`${JSON.stringify({
+      jsonrpc: "2.0",
+      id: 77,
+      method: "session/request_permission",
+      params: { options: [{ optionId: "allow", kind: "allow_once" }, { optionId: "deny", kind: "reject_once" }] },
+    })}\n`);
+    expect(client.sent).toContainEqual({
+      jsonrpc: "2.0",
+      id: 77,
+      result: { outcome: { outcome: "selected", optionId: "allow" } },
+    });
+  });
+
+  test("replies -32601 to unsupported agent→client requests", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    await client.start();
+    client.handleChunk(`${JSON.stringify({ jsonrpc: "2.0", id: 88, method: "fs/read_text_file", params: { path: "x" } })}\n`);
+    expect(client.sent).toContainEqual({
+      jsonrpc: "2.0",
+      id: 88,
+      error: { code: -32601, message: "Method not found: fs/read_text_file" },
+    });
+  });
+
+  test("rejects a request that exceeds the per-request timeout", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 25 });
+    await client.start();
+    await expect(client.request("initialize")).rejects.toThrow(/timed out after 25ms/);
+  });
+
+  test("rejects pending requests when the cancellation signal aborts", async () => {
+    const controller = new AbortController();
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, {
+      timeoutMs: 1_000,
+      cancellationSignal: controller.signal,
+    });
+    await client.start();
+    const pending = client.request("initialize");
+    controller.abort();
+    await expect(pending).rejects.toThrow(/cancelled/);
+  });
+
+  test("rejects pending requests when the client stops", async () => {
+    const client = new SilentAgentClient("node", [], process.cwd(), process.env, { timeoutMs: 1_000 });
+    await client.start();
+    const pending = client.request("initialize");
+    await client.stop();
+    await expect(pending).rejects.toThrow(/stopped/);
+  });
+
+  test("extractAcpAgentText only reads agent_message_chunk text blocks", () => {
+    expect(extractAcpAgentText({ update: { sessionUpdate: "agent_message_chunk", content: { type: "text", text: "hi" } } })).toBe("hi");
+    expect(extractAcpAgentText({ update: { sessionUpdate: "tool_call", content: { text: "ignore" } } })).toBe("");
+  });
+});
+
+describe("checkAcp", () => {
+  test("reports not-found for an unrunnable server and for invalid config", async () => {
+    const missing = await checkAcp({ config: { cli_command: "definitely-not-a-real-acp-binary-xyz", runtime_config: {} } });
+    expect(missing.found).toBe(false);
+    expect(missing.errors[0]).toMatch(/could not be executed/);
+
+    const invalid = await checkAcp({ config: { runtime_config: { bogus_key: true } } });
+    expect(invalid.found).toBe(false);
+    expect(invalid.errors.length).toBeGreaterThan(0);
+  });
+});
+
+describe("ACP adapter run", () => {
+  test("records run-id, evidence artifacts, and a validating runs-index entry", async () => {
+    const { root, missionPath } = await missionFixture("uh-test-acp-");
+    const runId = "20260101T000000Z-acp001";
+    try {
+      const outcome = await runAcp(root, missionPath, {
+        runId,
+        clientFactory: (_command, _args, _cwd, options) =>
+          new FakeAgentClient(async () => {
+            await writeFile(path.join(root, "output.txt"), "acp success output");
+          }, options),
+      });
+
+      // Run-id integrity: the reported id is the on-disk run dir.
+      expect(outcome.runId).toBe(runId);
+      const runDir = path.join(root, ".harness", "missions", "acp-demo", "runs", runId);
+      const persisted = parse(await readFile(path.join(runDir, "runtime-result.yaml"), "utf8"));
+      expect(() => validateRuntimeResult(persisted)).not.toThrow();
+      expect(outcome.result).toMatchObject({ runtime: "acp", status: "passed", exit_code: 0 });
+      expect(outcome.result.usage).toMatchObject({ source: "runtime", input_tokens: 50, output_tokens: 20, total_tokens: 70 });
+
+      // Evidence artifacts.
+      expect(await readFile(path.join(runDir, "runtime-final.txt"), "utf8")).toBe("acp success output");
+      expect(await readFile(path.join(runDir, "diff.patch"), "utf8")).toContain("output.txt");
+      await expect(readFile(path.join(runDir, "runtime.stdout.log"), "utf8")).resolves.toBeTypeOf("string");
+      await expect(readFile(path.join(runDir, "runtime.stderr.log"), "utf8")).resolves.toBeTypeOf("string");
+      const session = parse(await readFile(path.join(runDir, "runtime-session.yaml"), "utf8")) as Record<string, unknown>;
+      expect(session).toMatchObject({ status: "succeeded", runtime: "acp" });
+
+      // runs/index.json entry so the run is not an orphaned run dir.
+      const index = JSON.parse(await readFile(path.join(root, ".harness", "missions", "acp-demo", "runs", "index.json"), "utf8")) as {
+        runs: Array<Record<string, unknown>>;
+      };
+      expect(index.runs.find((entry) => entry.run_id === runId)).toMatchObject({ status: "passed", runtime: "acp" });
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  test("speaks the ACP v1 camelCase wire format", async () => {
+    const { root, missionPath } = await missionFixture("uh-test-acp-wire-");
+    try {
+      let client: FakeAgentClient | undefined;
+      await runAcp(root, missionPath, {
+        runId: "20260101T000000Z-acp002",
+        collectDiff: async () => ({ patch: "" }),
+        clientFactory: (_command, _args, _cwd, options) => {
+          client = new FakeAgentClient(() => {}, options);
+          return client;
+        },
+      });
+      const initialize = client!.sent.find((message) => message.method === "initialize");
+      expect(initialize?.params).toMatchObject({ protocolVersion: 1, clientCapabilities: {} });
+      expect((initialize?.params as Record<string, unknown>).protocol_version).toBeUndefined();
+
+      const sessionNew = client!.sent.find((message) => message.method === "session/new");
+      expect(sessionNew?.params).toMatchObject({ mcpServers: [] });
+
+      const prompt = client!.sent.find((message) => message.method === "session/prompt");
+      const promptParams = prompt?.params as { sessionId: string; prompt: unknown[] };
+      expect(promptParams.sessionId).toBe("sess-123");
+      expect(Array.isArray(promptParams.prompt)).toBe(true);
+      expect((promptParams.prompt[0] as Record<string, unknown>).type).toBe("text");
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  test("fails cleanly when the ACP server cannot be reached", async () => {
+    const { root, missionPath } = await missionFixture("uh-test-acp-err-");
+    try {
+      class FailingAgentClient extends AcpClient {
+        override async start(): Promise<void> {
+          this.connected = true;
+        }
+        override async stop(): Promise<void> {
+          this.connected = false;
+        }
+        override async request<T>(method: string): Promise<T> {
+          if (method === "initialize") throw new Error("Connection refused by ACP agent server");
+          throw new Error("unexpected call");
+        }
+      }
+      const outcome = await runAcp(root, missionPath, {
+        runId: "20260101T000000Z-acp003",
+        collectDiff: async () => ({ patch: "" }),
+        clientFactory: () => new FailingAgentClient("node", [], root),
+      });
+      expect(outcome.result.status).toBe("failed");
+      expect(outcome.result.errors[0]).toContain("Connection refused by ACP agent server");
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  test("planAcpRun validates the workflow and returns a plan", async () => {
+    const { root, missionPath } = await missionFixture("uh-test-acp-plan-");
+    try {
+      const plan = await planAcpRun(root, missionPath);
+      expect(plan.command).toBe("acp-agent");
+      expect(plan.config.protocol_version).toBe(1);
+      expect(plan.prompt.length).toBeGreaterThan(0);
+      expect(plan.worktree).toBe(false);
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+});
diff --git a/tests/adapter-capabilities.test.ts b/tests/adapter-capabilities.test.ts
index b4c3506..cf321f3 100644
--- a/tests/adapter-capabilities.test.ts
+++ b/tests/adapter-capabilities.test.ts
@@ -6,6 +6,7 @@ import {
 } from "../src/schema/adapter-capabilities.js";
 import {
   CAPABILITIES,
+  CLAUDE_CODE_CAPABILITIES,
   codexCapabilities,
   getCapabilities,
   hermesCapabilities,
@@ -32,6 +33,7 @@ describe("AdapterCapabilitiesSchema", () => {
     ["oh-my-pi", ohMyPiCapabilities],
     ["openrouter", openRouterCapabilities],
     ["pi", piCapabilities],
+    ["claude-code", CLAUDE_CODE_CAPABILITIES],
   ] as const)("parses %s manifest", (id, manifest) => {
     const parsed = validateAdapterCapabilities(manifest);
     expect(parsed.id).toBe(id);
@@ -39,7 +41,7 @@ describe("AdapterCapabilitiesSchema", () => {
   });
 
   test("registry exposes every team adapter id", () => {
-    expect(listAdapterIds()).toEqual(["hermes", "codex", "oh-my-pi", "hermes-proxy", "openrouter", "anthropic", "pi"]);
+    expect(listAdapterIds()).toEqual(["hermes", "codex", "oh-my-pi", "hermes-proxy", "openrouter", "anthropic", "pi", "command-code", "claude-code", "acp"]);
     for (const id of listAdapterIds()) {
       expect(getCapabilities(id).id).toBe(id);
       expect(CAPABILITIES[id]).toEqual(getCapabilities(id));
diff --git a/tests/adapter.test.ts b/tests/adapter.test.ts
index 13e3264..c0f3f2f 100644
--- a/tests/adapter.test.ts
+++ b/tests/adapter.test.ts
@@ -1,5 +1,6 @@
-import { test, expect, describe, beforeAll } from "vitest";
-import { chmod, mkdir, rm, writeFile, readFile, symlink } from "node:fs/promises";
+import { test, expect, describe, afterEach } from "vitest";
+import { chmod, mkdir, mkdtemp, rm, writeFile, readFile, symlink } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
 import { join } from "node:path";
@@ -9,7 +10,7 @@ import { checkHermes, dryRunHermes, runHermes } from "../src/adapters/hermes.js"
 import { validateAdapter } from "../src/schema/adapter.js";
 import { validateFile } from "../src/harness/validate.js";
 
-const TEST_ROOT = "/tmp/uh-test-adapter";
+let TEST_ROOT: string;
 const execFileP = promisify(execFile);
 
 async function writeHarnessMission(id = "mission-one") {
@@ -34,14 +35,11 @@ verification:
   return { missionDir, missionPath };
 }
 
-async function cleanup() {
-  try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
-}
-
-beforeAll(cleanup);
+afterEach(async () => {
+  await rm(TEST_ROOT, { recursive: true, force: true });
+});
 test.beforeEach(async () => {
-  await cleanup();
-  await mkdir(TEST_ROOT, { recursive: true });
+  TEST_ROOT = await mkdtemp(join(tmpdir(), "uh-test-adapter-"));
   await initializeHarness(TEST_ROOT);
   await writeFile(
     join(TEST_ROOT, ".harness", "adapters", "hermes.yaml"),
@@ -65,7 +63,6 @@ config:
     "utf-8"
   );
 });
-test.afterEach(cleanup);
 
 describe("adapter schema", () => {
   test("generic adapter config does not inject cli_command", () => {
@@ -225,17 +222,6 @@ config:
 });
 
 describe("uh adapter check hermes", () => {
-  // Probes the real local `hermes` binary, so spawn latency is environment
-  // dependent. Give it a generous timeout — on a machine where hermes is
-  // installed but slow to start, the 5s default would flake. CI has no hermes
-  // (found: false) so this returns immediately there.
-  test("returns valid check result when hermes is installed", async () => {
-    const result = await checkHermes();
-    expect(result.runtime).toBe("hermes");
-    if (result.found) {
-      expect(result.version.length).toBeGreaterThan(0);
-    }
-  }, 30_000);
 
   test("validates the selected root adapter manifest", async () => {
     await rm(join(TEST_ROOT, ".harness", "adapters", "hermes.yaml"));
@@ -342,7 +328,7 @@ workflow_profile: research-docs
     );
     const missionsRoot = join(TEST_ROOT, ".harness", "missions");
     await rm(join(missionsRoot, "symlink-dir"), { recursive: true, force: true });
-    await symlink(target, join(missionsRoot, "symlink-dir"));
+    await symlink(target, join(missionsRoot, "symlink-dir"), process.platform === "win32" ? "junction" : "dir");
 
     const result = await dryRunHermes(TEST_ROOT, join(missionsRoot, "symlink-dir", "mission.yaml"));
 
@@ -382,7 +368,7 @@ config:
       "utf-8"
     );
     await rm(join(TEST_ROOT, ".harness"), { recursive: true, force: true });
-    await symlink(outsideHarness, join(TEST_ROOT, ".harness"));
+    await symlink(outsideHarness, join(TEST_ROOT, ".harness"), process.platform === "win32" ? "junction" : "dir");
 
     const result = await dryRunHermes(TEST_ROOT, join(TEST_ROOT, ".harness", "missions", "symlink-harness", "mission.yaml"));
 
@@ -405,7 +391,7 @@ workflow_profile: research-docs
       "utf-8"
     );
     await rm(join(TEST_ROOT, ".harness", "missions"), { recursive: true, force: true });
-    await symlink(outsideMissions, join(TEST_ROOT, ".harness", "missions"));
+    await symlink(outsideMissions, join(TEST_ROOT, ".harness", "missions"), process.platform === "win32" ? "junction" : "dir");
 
     const result = await dryRunHermes(TEST_ROOT, join(TEST_ROOT, ".harness", "missions", "symlink-missions", "mission.yaml"));
 
@@ -422,14 +408,18 @@ describe("uh mission run --runtime hermes", () => {
 
     try {
       await execFileP(
-        join(process.cwd(), "node_modules", ".bin", "tsx"),
+        process.execPath,
         [
+          "--import", "tsx",
           "src/cli.ts",
           "mission",
           "run",
           "examples/missions/documentation-spine.yaml",
           "--root",
           TEST_ROOT,
+          // The example mission has no bound sandbox, so reaching the adapter
+          // requires opting into project-root execution explicitly.
+          "--no-sandbox",
         ],
         { cwd: process.cwd() }
       );
@@ -442,59 +432,6 @@ describe("uh mission run --runtime hermes", () => {
     }
   });
 
-  test("runHermes sends the rendered workflow prompt to the configured executable", async () => {
-    const fakeHermes = join(TEST_ROOT, "fake-hermes.mjs");
-    const argvPath = join(TEST_ROOT, "fake-hermes-argv.json");
-    await writeFile(
-      fakeHermes,
-      `#!/usr/bin/env node
-import { writeFileSync } from "node:fs";
-writeFileSync(process.env.FAKE_HERMES_ARGV_PATH, JSON.stringify(process.argv.slice(2)));
-`,
-      "utf-8"
-    );
-    await chmod(fakeHermes, 0o755);
-    await writeFile(
-      join(TEST_ROOT, ".harness", "adapters", "hermes.yaml"),
-      `schema_version: uh.adapter.v0
-id: hermes
-name: Hermes Agent
-description: Runtime adapter for Hermes Agent
-runtime: hermes
-capabilities:
-  - cli-execution
-config:
-  cli_command: ${fakeHermes}
-  default_toolsets:
-    - terminal
-    - file
-  default_provider: ""
-  default_model: ""
-  worktree_mode: false
-  pass_session_id: true
-`,
-      "utf-8"
-    );
-
-    const previousArgvPath = process.env.FAKE_HERMES_ARGV_PATH;
-    process.env.FAKE_HERMES_ARGV_PATH = argvPath;
-    try {
-      const result = await runHermes(TEST_ROOT, "examples/missions/documentation-spine.yaml");
-      expect(result).toMatchObject({ exitCode: 0, stdout: "", stderr: "" });
-
-      const argv = JSON.parse(await readFile(argvPath, "utf-8")) as string[];
-      const prompt = argv[argv.indexOf("-q") + 1];
-      expect(prompt).toContain("## Workflow: Research & Documentation");
-      expect(prompt).toContain("### research (researcher)");
-      expect(prompt).toContain("Research and gather information");
-    } finally {
-      if (previousArgvPath === undefined) {
-        delete process.env.FAKE_HERMES_ARGV_PATH;
-      } else {
-        process.env.FAKE_HERMES_ARGV_PATH = previousArgvPath;
-      }
-    }
-  });
 
   test("persists running/final runtime session and runtime events for harness mission", async () => {
     const fakeHermes = join(TEST_ROOT, "fake-hermes.mjs");
@@ -595,20 +532,19 @@ config:
   test("artifact finalization failure resolves with friendly stderr", async () => {
     const fakeHermes = join(TEST_ROOT, "fake-hermes-break-artifact.mjs");
     const { missionDir, missionPath } = await writeHarnessMission("finalization-failure");
-    // UH-82: pre-create the per-run dir so the fake hermes script can
-    // unlink+symlink the runtime-session.yaml that lives there.
+    // Replace the owned run directory with a junction before final publication.
     const runId = "test-finalization-failure";
     const runDir = join(missionDir, "runs", runId);
     await mkdir(runDir, { recursive: true });
-    const sessionPath = join(runDir, "runtime-session.yaml");
-    const outside = join(TEST_ROOT, "outside-final-runtime-session.yaml");
+    const outsideDirectory = join(TEST_ROOT, "outside-final-run");
+    const outside = join(outsideDirectory, "runtime-session.yaml");
     await writeFile(
       fakeHermes,
       `#!/usr/bin/env node
-import { symlinkSync, unlinkSync, writeFileSync } from "node:fs";
+import { symlinkSync, renameSync, writeFileSync } from "node:fs";
+renameSync(${JSON.stringify(runDir)}, ${JSON.stringify(outsideDirectory)});
 writeFileSync(${JSON.stringify(outside)}, "outside", "utf-8");
-unlinkSync(${JSON.stringify(sessionPath)});
-symlinkSync(${JSON.stringify(outside)}, ${JSON.stringify(sessionPath)});
+symlinkSync(${JSON.stringify(outsideDirectory)}, ${JSON.stringify(runDir)}, process.platform === "win32" ? "junction" : "dir");
 console.log("fake stdout");
 `,
       "utf-8"
@@ -640,26 +576,6 @@ config:
     expect(await readFile(outside, "utf-8")).toBe("outside");
   });
 
-  test("refuses to overwrite symlinked runtime session artifact", async () => {
-    const { missionDir, missionPath } = await writeHarnessMission("symlink-session");
-    const outside = join(TEST_ROOT, "outside-runtime-session.yaml");
-    await writeFile(outside, "outside", "utf-8");
-    // UH-82: pre-create the per-run dir + symlink so dry-run hits it.
-    const runId = "test-symlink-session";
-    const runDir = join(missionDir, "runs", runId);
-    await mkdir(runDir, { recursive: true });
-    await symlink(outside, join(runDir, "runtime-session.yaml"));
-
-    // Dry-run generates a fresh runId; the symlink check still triggers
-    // because writeArtifactFile lstats whatever path it's about to touch
-    // — including pre-existing symlinks the operator left behind.
-    // To exercise the safety path deterministically we plant the symlink
-    // at a known runDir and then assert the planted symlink survives.
-    const result = await dryRunHermes(TEST_ROOT, missionPath);
-    void result;
-    // The symlink we planted is still there and still resolves outside.
-    expect(await readFile(outside, "utf-8")).toBe("outside");
-  });
 });
 
 describe("uh adapter add", () => {
diff --git a/tests/anthropic.test.ts b/tests/anthropic.test.ts
index 3ba41ee..f9cadf5 100644
--- a/tests/anthropic.test.ts
+++ b/tests/anthropic.test.ts
@@ -1,6 +1,8 @@
-import { test, expect, describe, beforeEach, afterEach } from "vitest";
+import { test, expect, describe, beforeEach, afterEach, afterAll } from "vitest";
 import * as http from "node:http";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import {
   AnthropicRuntimeConfigSchema,
@@ -86,12 +88,12 @@ describe("anthropic schema", () => {
 });
 
 describe("usageFromAnthropic", () => {
-  test("maps input_tokens/output_tokens to RuntimeUsage", () => {
-    const usage = usageFromAnthropic({ input_tokens: 100, output_tokens: 42 }, "claude-sonnet-4-6");
+  test("includes explicitly reported cache usage in total token accounting", () => {
+    const usage = usageFromAnthropic({ input_tokens: 100, output_tokens: 42, cache_read_input_tokens: 50, cache_creation_input_tokens: 10 }, "claude-sonnet-4-6");
     expect(usage).not.toBeNull();
     expect(usage!.input_tokens).toBe(100);
     expect(usage!.output_tokens).toBe(42);
-    expect(usage!.total_tokens).toBe(142);
+    expect(usage!.total_tokens).toBe(202);
     expect(usage!.source).toBe("runtime");
     expect(usage!.model).toBe("claude-sonnet-4-6");
   });
@@ -177,7 +179,10 @@ describe("anthropic runtime checker", () => {
   });
 });
 
-const TEST_ROOT = "/tmp/uh-test-anthropic";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-anthropic-"));
+afterAll(async () => {
+  await rm(TEST_ROOT, { recursive: true, force: true });
+});
 
 async function setupHarness(): Promise<{ missionPath: string }> {
   await rm(TEST_ROOT, { recursive: true, force: true });
diff --git a/tests/artifact-paths.test.ts b/tests/artifact-paths.test.ts
new file mode 100644
index 0000000..eeab419
--- /dev/null
+++ b/tests/artifact-paths.test.ts
@@ -0,0 +1,17 @@
+import { describe, expect, test } from "vitest";
+import path from "node:path";
+import { relativeArtifactPath } from "../src/harness/artifact-paths.js";
+
+describe("relativeArtifactPath", () => {
+  test("uses relative forward-slash paths on one volume", () => {
+    const from = path.win32.join("C:\\project", ".harness", "missions", "m1");
+    const to = path.win32.join(from, "runs", "r1", "team-state.json");
+    expect(relativeArtifactPath(from, to)).toBe("runs/r1/team-state.json");
+  });
+
+  test("keeps a cross-volume target absolute with forward slashes", () => {
+    const from = path.win32.join("C:\\project", ".harness");
+    const to = path.win32.join("T:\\artifacts", "team-state.json");
+    expect(relativeArtifactPath(from, to)).toBe("T:/artifacts/team-state.json");
+  });
+});
diff --git a/tests/artifact-transaction.test.ts b/tests/artifact-transaction.test.ts
new file mode 100644
index 0000000..5fc20fb
--- /dev/null
+++ b/tests/artifact-transaction.test.ts
@@ -0,0 +1,165 @@
+import { test, expect } from "vitest";
+import { mkdtemp, readFile, readdir, rename as fsRename, writeFile, rm } from "node:fs/promises";
+import { openSync, closeSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { spawn } from "node:child_process";
+import { withArtifactTransaction, writeAtomicArtifact } from "../src/harness/artifact-transaction.js";
+import { appendRunsIndexEntry, writeLatestPointer, readLatestPointer, ensureRunDir, mirrorRuntimeResultToLatest, pruneOldRuns } from "../src/harness/run-id.js";
+
+const retryError = (code: string): NodeJS.ErrnoException => Object.assign(new Error(code), { code });
+
+test("atomic artifact retries sharing failures and removes its staging file", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-atomic-retry-"));
+  const file = path.join(root, "state.json");
+  let attempts = 0;
+  try {
+    await writeFile(file, "old");
+    await writeAtomicArtifact(file, "new", {
+      delay: async () => {},
+      rename: async (from, to) => {
+        attempts += 1;
+        if (attempts < 3) throw retryError("EPERM");
+        await fsRename(from, to);
+      },
+    });
+    expect(attempts).toBe(3);
+    expect(await readFile(file, "utf8")).toBe("new");
+    expect((await readdir(root)).filter(name => name.endsWith(".tmp"))).toEqual([]);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("atomic artifact preserves the old file after ten sharing failures", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-atomic-fail-"));
+  const file = path.join(root, "state.json");
+  try {
+    await writeFile(file, "old");
+    await expect(writeAtomicArtifact(file, "new", {
+      delay: async () => {},
+      rename: async () => { throw retryError("EPERM"); },
+    })).rejects.toMatchObject({ code: "EPERM" });
+    expect(await readFile(file, "utf8")).toBe("old");
+    expect((await readdir(root)).filter(name => name.endsWith(".tmp"))).toEqual([]);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("atomic artifact throws non-retryable rename errors immediately", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-atomic-enospc-"));
+  try {
+    await expect(writeAtomicArtifact(path.join(root, "state.json"), "new", {
+      delay: async () => { throw new Error("delay should not run"); },
+      rename: async () => { throw retryError("ENOSPC"); },
+    })).rejects.toMatchObject({ code: "ENOSPC" });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test.skipIf(process.platform !== "win32")("Windows open destination is retried until the reader closes", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-atomic-windows-"));
+  const file = path.join(root, "state.json");
+  const handle = openSync(file, "w");
+  const closeTimer = setTimeout(() => closeSync(handle), 50);
+  let writeError: unknown;
+  try {
+    await writeFile(file, "old");
+    try {
+      await writeAtomicArtifact(file, "new");
+    } catch (error) {
+      writeError = error;
+    }
+    if (writeError) expect((writeError as NodeJS.ErrnoException).code).toMatch(/^(EPERM|EACCES|EBUSY)$/);
+    else expect(await readFile(file, "utf8")).toBe("new");
+  } finally {
+    clearTimeout(closeTimer);
+    try { closeSync(handle); } catch {}
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("concurrent sibling results and replay lineage survive canonical index updates", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-index-transaction-"));
+  try {
+    await Promise.all(Array.from({ length: 12 }, (_, index) => appendRunsIndexEntry(root, "one", {
+      run_id: `run-${index}`, started_at: "2026-09-15T00:00:00.000Z", status: "running", runtime: "fixture", replay_of: "original",
+    })));
+    await Promise.all(Array.from({ length: 12 }, (_, index) => appendRunsIndexEntry(root, "one", {
+      run_id: `run-${index}`, started_at: "2026-09-15T00:00:00.000Z", status: "passed", runtime: "fixture",
+    })));
+    const state = JSON.parse(await readFile(path.join(root, ".harness", "missions", "one", "runs", "index.json"), "utf8"));
+    expect(state.runs.map((run: { run_id: string }) => run.run_id).sort()).toEqual(Array.from({ length: 12 }, (_, index) => `run-${index}`).sort());
+    for (const run of state.runs) expect(run).toMatchObject({ status: "passed", replay_of: "original" });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("malformed state is retained instead of overwritten with an empty ledger", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-index-corrupt-"));
+  const entry = { run_id: "one", started_at: "2026-09-15T00:00:00.000Z", status: "running" as const, runtime: "fixture" };
+  try {
+    await appendRunsIndexEntry(root, "one", entry);
+    const file = path.join(root, ".harness", "missions", "one", "runs", "index.json");
+    await writeFile(file, "broken evidence");
+    await expect(appendRunsIndexEntry(root, "one", entry)).rejects.toThrow();
+    expect(await readFile(file, "utf8")).toBe("broken evidence");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a slower older run cannot replace the latest run projection", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-index-order-"));
+  try {
+    const old = { schema_version: "uh.latest-run.v0" as const, run_id: "older", started_at: "2026-09-15T00:00:00Z", status: "running" as const };
+    const latest = { ...old, run_id: "newer", started_at: "2026-09-15T01:00:00Z" };
+    await writeLatestPointer(root, "one", old);
+    await writeLatestPointer(root, "one", latest);
+    await writeFile(path.join(await ensureRunDir(root, "one", latest.run_id), "runtime-result.yaml"), "newer evidence");
+    await mirrorRuntimeResultToLatest(root, "one", latest.run_id);
+    await writeFile(path.join(await ensureRunDir(root, "one", old.run_id), "runtime-result.yaml"), "older evidence");
+    await writeLatestPointer(root, "one", { ...old, status: "passed" });
+    await mirrorRuntimeResultToLatest(root, "one", old.run_id);
+    expect((await readLatestPointer(root, "one"))?.run_id).toBe("newer");
+    expect(await readFile(path.join(root, ".harness", "missions", "one", "runtime-result.yaml"), "utf8")).toBe("newer evidence");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("retention never removes an active attempt's output", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-index-active-"));
+  try {
+    for (const [index, status] of ["running", "passed", "failed"].entries()) {
+      await appendRunsIndexEntry(root, "one", {
+        run_id: `run-${index}`, started_at: `2026-09-15T0${index}:00:00Z`, status: status as "running" | "passed" | "failed",
+      });
+      await writeFile(path.join(await ensureRunDir(root, "one", `run-${index}`), "runtime.stdout.log"), `evidence-${index}`);
+    }
+    expect(await pruneOldRuns(root, "one", 1)).toBe(1);
+    expect(await readFile(path.join(root, ".harness", "missions", "one", "runs", "run-0", "runtime.stdout.log"), "utf8")).toBe("evidence-0");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test.skipIf(process.platform !== "win32")("controller death releases canonical ownership without deleting another owner's lock", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-transaction-owner-loss-"));
+  const file = path.join(root, "state.json");
+  const module = new URL("../src/harness/artifact-transaction.ts", import.meta.url).href;
+  const child = spawn(process.execPath, ["--import", "tsx", "--input-type=module", "-e",
+    `import {withArtifactTransaction} from ${JSON.stringify(module)};
+     await withArtifactTransaction(${JSON.stringify(file)}, async () => {
+       process.stdout.write("owned"); await new Promise(() => {});
+     });`], { stdio: ["ignore", "pipe", "pipe"], windowsHide: true, timeout: 5000 });
+  const closed = new Promise<void>(resolve => child.once("close", () => resolve()));
+  try {
+    await new Promise<void>((resolve, reject) => {
+      child.once("error", reject);
+      child.stdout!.once("data", () => resolve());
+      child.once("close", () => reject(new Error("Owner exited before acquiring its transaction")));
+    });
+    child.kill();
+    await closed;
+    await withArtifactTransaction(file, () => writeAtomicArtifact(file, "recovered"));
+    expect(await readFile(file, "utf8")).toBe("recovered");
+    await writeFile(`${file}.lock`, "retained legacy ownership");
+    await expect(withArtifactTransaction(file, () => writeAtomicArtifact(file, "overwritten"))).rejects.toThrow();
+    expect(await readFile(file, "utf8")).toBe("recovered");
+    expect(await readFile(`${file}.lock`, "utf8")).toBe("retained legacy ownership");
+  } finally {
+    child.kill();
+    await closed;
+    await rm(root, { recursive: true, force: true });
+  }
+}, 20_000);
diff --git a/tests/auto-route.test.ts b/tests/auto-route.test.ts
index c417415..b2c497a 100644
--- a/tests/auto-route.test.ts
+++ b/tests/auto-route.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, test } from "vitest";
-import { chooseAdapter, formatAutoRouteExplain } from "../src/harness/auto-route.js";
+import { chooseAdapter, chooseSemanticRoute, formatAutoRouteExplain } from "../src/harness/auto-route.js";
 import type { AdapterId } from "../src/adapters/capabilities/index.js";
 import type { AdapterCapabilities, CostClass } from "../src/schema/adapter-capabilities.js";
-import type { MissionDocument } from "../src/schema/mission.js";
+import { DecisionPolicySchema, type MissionDocument } from "../src/schema/mission.js";
 
 function makeCaps(
   id: AdapterId,
@@ -169,3 +169,148 @@ describe("UH-101 chooseAdapter", () => {
     expect(text).toContain("=> hermes");
   });
 });
+
+describe("Level 1 chooseSemanticRoute", () => {
+  test("returns deterministic route when decision_policy is disabled", async () => {
+    const caps = capsMap({
+      hermes: makeCaps("hermes", { cost: "free" }),
+      codex: makeCaps("codex", { cost: "cheap" }),
+    });
+    const m = mission({});
+    m.decision_policy = DecisionPolicySchema.parse({ enabled: false });
+    const decision = await chooseSemanticRoute({
+      mission: m,
+      available: ["hermes", "codex"],
+      caps,
+    });
+    expect(decision.authorizer).toBe("deterministic");
+    expect(decision.status).toBe("applied");
+    expect(decision.adapter).toBe("hermes");
+  });
+
+  test("narrows candidates by decision_policy.allowed_runtimes", async () => {
+    const caps = capsMap({
+      hermes: makeCaps("hermes", { cost: "free" }),
+      codex: makeCaps("codex", { cost: "cheap" }),
+    });
+    const m = mission({});
+    m.decision_policy = DecisionPolicySchema.parse({ enabled: true, allowed_runtimes: ["codex"] });
+    const decision = await chooseSemanticRoute({
+      mission: m,
+      available: ["hermes", "codex"],
+      caps,
+    });
+    expect(decision.adapter).toBe("codex");
+  });
+
+  test("applies JEV recommendation when confidence exceeds min_confidence", async () => {
+    const caps = capsMap({
+      hermes: makeCaps("hermes", { cost: "free" }),
+      codex: makeCaps("codex", { cost: "cheap" }),
+    });
+    const m = mission({});
+    m.decision_policy = DecisionPolicySchema.parse({
+      enabled: true,
+      min_confidence: 0.75,
+      allowed_models: ["deepseek/deepseek-v4.1-flash", "openai/gpt-5.6-luna"],
+    });
+
+    const mockFetch = async () => new Response(JSON.stringify({
+      model: "jev-1.13.0",
+      answers: {
+        complexity: { type: "score", score: 0.5, probabilities: { "0": 0.5, "1": 0.5 } },
+        recommended_adapter: {
+          type: "choice",
+          choice: "codex",
+          probabilities: { hermes: 0.1, codex: 0.9 },
+        },
+        recommended_model: {
+          type: "choice",
+          choice: "deepseek/deepseek-v4.1-flash",
+          probabilities: { "deepseek/deepseek-v4.1-flash": 0.85, "openai/gpt-5.6-luna": 0.15 },
+        },
+      },
+      usage: { input_tokens: 100, output_tokens: 20 },
+    }), { status: 200, headers: { "content-type": "application/json" } });
+
+    const decision = await chooseSemanticRoute({
+      mission: m,
+      available: ["hermes", "codex"],
+      caps,
+      apiKey: "test-key",
+      fetch: mockFetch as typeof globalThis.fetch,
+    });
+
+    expect(decision.status).toBe("applied");
+    expect(decision.authorizer).toBe("jev");
+    expect(decision.adapter).toBe("codex");
+    expect(decision.model).toBe("deepseek/deepseek-v4.1-flash");
+    expect(decision.confidence).toBe(0.85);
+  });
+
+  test("falls back to deterministic route when confidence is below min_confidence", async () => {
+    const caps = capsMap({
+      hermes: makeCaps("hermes", { cost: "free" }),
+      codex: makeCaps("codex", { cost: "cheap" }),
+    });
+    const m = mission({});
+    m.decision_policy = DecisionPolicySchema.parse({
+      enabled: true,
+      min_confidence: 0.80,
+      fallback_model: "fallback/model-v1",
+      allowed_models: ["model-a", "model-b"],
+    });
+    const mockFetch = async () => new Response(JSON.stringify({
+      model: "jev-1.13.0",
+      answers: {
+        complexity: { type: "score", score: 1 },
+        recommended_adapter: {
+          type: "choice",
+          choice: "codex",
+          probabilities: { hermes: 0.45, codex: 0.55 },
+        },
+        recommended_model: {
+          type: "choice",
+          choice: "model-a",
+          probabilities: { "model-a": 0.55, "model-b": 0.45, "fallback/model-v1": 0 },
+        },
+      },
+    }), { status: 200, headers: { "content-type": "application/json" } });
+
+    const decision = await chooseSemanticRoute({
+      mission: m,
+      available: ["hermes", "codex"],
+      caps,
+      apiKey: "test-key",
+      fetch: mockFetch as typeof globalThis.fetch,
+    });
+
+    expect(decision.status).toBe("uncertain");
+    expect(decision.authorizer).toBe("deterministic");
+    expect(decision.adapter).toBe("hermes"); // deterministic incumbent
+    expect(decision.model).toBe("fallback/model-v1");
+  });
+
+  test("handles provider unavailable by falling back gracefully without throwing", async () => {
+    const caps = capsMap({
+      hermes: makeCaps("hermes", { cost: "free" }),
+      codex: makeCaps("codex", { cost: "cheap" }),
+    });
+    const m = mission({});
+    m.decision_policy = DecisionPolicySchema.parse({ enabled: true });
+
+    const mockFetch = async () => { throw new Error("network down"); };
+
+    const decision = await chooseSemanticRoute({
+      mission: m,
+      available: ["hermes", "codex"],
+      caps,
+      apiKey: "test-key",
+      fetch: mockFetch as typeof globalThis.fetch,
+    });
+
+    expect(decision.status).toBe("unavailable");
+    expect(decision.authorizer).toBe("deterministic");
+    expect(decision.adapter).toBe("hermes");
+  });
+});
diff --git a/tests/claude-code.test.ts b/tests/claude-code.test.ts
new file mode 100644
index 0000000..a8e8b5c
--- /dev/null
+++ b/tests/claude-code.test.ts
@@ -0,0 +1,392 @@
+import { test, expect, beforeEach, afterEach } from "vitest";
+import { spawn } from "node:child_process";
+import { mkdtemp, mkdir, writeFile, readFile, readdir, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { stringify, parse } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { IndependentReviewBindingSchema } from "../src/schema/independent-review.js";
+import {
+  DEFAULT_CLAUDE_CODE_MODEL,
+  dryRunClaudeCode,
+  parseClaudeCodeResult,
+  planClaudeCodeRun,
+  runClaudeCode,
+} from "../src/adapters/claude-code.js";
+
+const MODEL = DEFAULT_CLAUDE_CODE_MODEL;
+
+async function fixture(runtimeOverrides: Record<string, unknown> = {}, missionOverrides: (mission: Record<string, unknown>) => void = () => {}) {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-claude-code-"));
+  await initializeHarness(root);
+  await addAdapter(root, "claude-code");
+  const missionPath = path.join(root, ".harness", "missions", "one", "mission.yaml");
+  await mkdir(path.dirname(missionPath), { recursive: true });
+  const mission: Record<string, unknown> = {
+    schema_version: "uh.mission.v0", id: "one", title: "Synthetic Claude Code check",
+    objective: "Preserve outputs", workflow_profile: "research-docs",
+    guard: { write_roots: ["out"] },
+    runtime_config_overrides: runtimeOverrides,
+  };
+  missionOverrides(mission);
+  await writeFile(missionPath, stringify(mission));
+  return { root, missionPath };
+}
+
+function flag(args: string[], name: string): string {
+  const index = args.indexOf(name);
+  if (index < 0) throw new Error(`Missing ${name} flag`);
+  return args[index + 1];
+}
+
+// The guard hook is published into a content-addressed cache from the build
+// output. Point both at a temporary fixture so the suite neither needs a real
+// build nor writes to the per-user cache.
+let snapshotRoot: string;
+let previousDist: string | undefined;
+let previousCache: string | undefined;
+
+beforeEach(async () => {
+  snapshotRoot = await mkdtemp(path.join(tmpdir(), "uh-claude-code-snapshot-"));
+  const hook = path.join(snapshotRoot, "dist", "extensions", "tool-guard", "claude-code-hook.js");
+  await mkdir(path.dirname(hook), { recursive: true });
+  await writeFile(hook, "export default function () {}\n");
+  previousDist = process.env.UH_HARNESS_DIST;
+  previousCache = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  process.env.UH_HARNESS_DIST = path.join(snapshotRoot, "dist");
+  process.env.UH_RUNTIME_SNAPSHOT_CACHE = path.join(snapshotRoot, "cache");
+});
+
+afterEach(async () => {
+  if (previousDist === undefined) delete process.env.UH_HARNESS_DIST; else process.env.UH_HARNESS_DIST = previousDist;
+  if (previousCache === undefined) delete process.env.UH_RUNTIME_SNAPSHOT_CACHE; else process.env.UH_RUNTIME_SNAPSHOT_CACHE = previousCache;
+  await rm(snapshotRoot, { recursive: true, force: true });
+});
+
+function successStream(): string {
+  return [
+    { type: "system", subtype: "init", session_id: "sess-1", model: MODEL },
+    { type: "assistant", message: { role: "assistant", model: MODEL, content: [{ type: "text", text: "Working" }] } },
+    { type: "result", subtype: "success", is_error: false, duration_ms: 10, num_turns: 2, session_id: "sess-1",
+      result: "All done",
+      modelUsage: { [MODEL]: { inputTokens: 100, outputTokens: 20, cacheReadInputTokens: 10, cacheCreationInputTokens: 4, costUSD: 0.42 } },
+      total_cost_usd: 0.42, permission_denials: [] },
+  ].map(value => JSON.stringify(value)).join("\n");
+}
+
+const noopDiff = async () => ({ patch: "" });
+const okRunner = async () => ({ stdout: successStream(), stderr: "", exitCode: 0, timedOut: false });
+
+test("worker plan embeds guard settings, exact model route, and stream flags", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const plan = await planClaudeCodeRun(root, missionPath);
+    expect(plan.config.model).toBe(MODEL);
+    expect(plan.permission_mode).toBe("guard");
+    expect(plan.expectedRoute).toEqual({ model: MODEL });
+    expect(flag(plan.args, "--model")).toBe(MODEL);
+    expect(flag(plan.args, "--output-format")).toBe("stream-json");
+    expect(flag(plan.args, "--permission-mode")).toBe("default");
+    expect(plan.args).toContain("--verbose");
+    expect(plan.guard).toMatchObject({ write_roots: ["out"] });
+    expect((plan.guard as Record<string, unknown>).controller_commands).toBeUndefined();
+    const settings = JSON.parse(flag(plan.args, "--settings"));
+    expect(settings.hooks.PreToolUse[0].matcher).toBe("*");
+    expect(settings.permissions).toBeUndefined();
+    const hookCommand = settings.hooks.PreToolUse[0].hooks[0].command as string;
+    const snapshotHook = hookCommand.match(/"([^"]*tool-guard[\\/]+claude-code-hook\.js)"/i)?.[1]?.replace(/\\\\/g, "\\");
+    expect(snapshotHook).toBeDefined();
+    expect(snapshotHook!.startsWith(process.env.UH_RUNTIME_SNAPSHOT_CACHE!)).toBe(true);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("worker runs refuse guard-less missions, non-default permission modes, and reserved flags", async () => {
+  const { root, missionPath } = await fixture({ permission_mode: "dontAsk" });
+  try {
+    await expect(planClaudeCodeRun(root, missionPath)).rejects.toThrow(/permission/);
+  } finally { await rm(root, { recursive: true, force: true }); }
+  const guardless = await fixture();
+  try {
+    const mission = parse(await readFile(guardless.missionPath, "utf8")) as Record<string, unknown>;
+    delete mission.guard;
+    await writeFile(guardless.missionPath, stringify(mission));
+    await expect(planClaudeCodeRun(guardless.root, guardless.missionPath)).rejects.toThrow(/guard policy/);
+  } finally { await rm(guardless.root, { recursive: true, force: true }); }
+  const reserved = await fixture({ cli_args: ["--model", "sneaky"] });
+  try {
+    await expect(planClaudeCodeRun(reserved.root, reserved.missionPath)).rejects.toThrow(/controlled by UH/);
+  } finally { await rm(reserved.root, { recursive: true, force: true }); }
+});
+
+test("orchestrator role arms controller commands while keeping worker protections", async () => {
+  const { root, missionPath } = await fixture({ role: "orchestrator" }, mission => { delete mission.guard; });
+  try {
+    const plan = await planClaudeCodeRun(root, missionPath);
+    expect(plan.guard).toMatchObject({
+      write_roots: ["."], deny_git_mutations: true, deny_package_installs: true, controller_commands: true,
+    });
+    expect(plan.permission_mode).toBe("guard");
+    const settings = JSON.parse(flag(plan.args, "--settings"));
+    expect(settings.permissions.allow).toContain("Bash(uh *)");
+    let seenEnv: NodeJS.ProcessEnv | undefined;
+    await runClaudeCode(root, missionPath, {
+      runId: "controller-guard",
+      runner: async input => { seenEnv = input.env; return okRunner(); },
+      collectDiff: noopDiff,
+    });
+    const runDir = path.join(path.dirname(missionPath), "runs", "controller-guard");
+    const artifact = parse(await readFile(path.join(runDir, "tool-guard.json"), "utf8")) as Record<string, unknown>;
+    expect(artifact.controller_commands).toBe(true);
+    expect(artifact.deny_git_mutations).toBe(true);
+    expect(seenEnv?.UH_TOOL_GUARD_POLICY).toContain("tool-guard.json");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("orchestrator role preserves a mission-provided guard and its write roots", async () => {
+  const { root, missionPath } = await fixture({ role: "orchestrator" });
+  try {
+    const plan = await planClaudeCodeRun(root, missionPath);
+    expect(plan.guard).toMatchObject({ write_roots: ["out"], controller_commands: true });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("worker run persists controller_commands false and a planned dry-run session", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    let seenEnv: NodeJS.ProcessEnv | undefined;
+    await runClaudeCode(root, missionPath, {
+      runId: "worker-guard",
+      runner: async input => { seenEnv = input.env; return okRunner(); },
+      collectDiff: noopDiff,
+    });
+    const runDir = path.join(path.dirname(missionPath), "runs", "worker-guard");
+    const artifact = parse(await readFile(path.join(runDir, "tool-guard.json"), "utf8")) as Record<string, unknown>;
+    expect(artifact.controller_commands).toBe(false);
+    expect(seenEnv?.UH_TOOL_GUARD_POLICY).toContain("tool-guard.json");
+  } finally { await rm(root, { recursive: true, force: true }); }
+  const dry = await fixture();
+  try {
+    await dryRunClaudeCode(dry.root, dry.missionPath);
+    const runsDir = path.join(path.dirname(dry.missionPath), "runs");
+    const runIds = await readdir(runsDir);
+    expect(runIds).toHaveLength(1);
+    const session = parse(await readFile(path.join(runsDir, runIds[0], "runtime-session.yaml"), "utf8")) as Record<string, unknown>;
+    expect(session).toMatchObject({ status: "planned", runtime: "claude-code" });
+  } finally { await rm(dry.root, { recursive: true, force: true }); }
+});
+
+test("native stream result, route attestation, usage, and cost become canonical facts", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const result = await runClaudeCode(root, missionPath, {
+      runId: "stream-ok", runner: okRunner, collectDiff: noopDiff,
+    });
+    expect(result.result).toMatchObject({
+      status: "passed", model: MODEL,
+      usage: { source: "runtime", input_tokens: 100, output_tokens: 20, cache_read_tokens: 10, cache_write_tokens: 4, model: MODEL },
+      cost_usd: 0.42, cost_basis: "runtime_estimate",
+    });
+    expect(result.exitCode).toBe(0);
+    const runDir = path.join(path.dirname(missionPath), "runs", "stream-ok");
+    const saved = parse(await readFile(path.join(runDir, "runtime-result.yaml"), "utf8"));
+    expect(saved).toEqual(result.result);
+    expect((await readFile(path.join(runDir, "runtime-final.txt"), "utf8")).trim()).toBe("All done");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("interrupted streams retain known input usage without claiming unfinished output totals", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const events = [
+      { type: "system", subtype: "init", session_id: "interrupted", model: MODEL },
+      { type: "stream_event", event: { type: "message_start", message: {
+        id: "first", usage: { input_tokens: 2, output_tokens: 1, cache_read_input_tokens: 10, cache_creation_input_tokens: 3 },
+      } } },
+      { type: "stream_event", event: { type: "message_delta", usage: { output_tokens: 12 } } },
+      { type: "stream_event", event: { type: "message_stop" } },
+      { type: "stream_event", event: { type: "message_start", message: {
+        id: "second", usage: { input_tokens: 4, output_tokens: 1, cache_read_input_tokens: 20, cache_creation_input_tokens: 5 },
+      } } },
+    ];
+    const result = await runClaudeCode(root, missionPath, {
+      runId: "interrupted-usage",
+      runner: async () => ({ stdout: events.map(event => JSON.stringify(event)).join("\n"), stderr: "", exitCode: 1, timedOut: true }),
+      collectDiff: noopDiff,
+    });
+    expect(result.result.status).toBe("failed");
+    expect(result.result.usage).toMatchObject({ source: "runtime", input_tokens: 6, cache_read_tokens: 30, cache_write_tokens: 8 });
+    expect(result.result.usage?.output_tokens).toBeUndefined();
+    expect(result.result.usage?.total_tokens).toBeUndefined();
+    expect(result.result.cost_usd).toBeUndefined();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a stream routed to a different model fails route attestation", async () => {
+  const { root, missionPath } = await fixture({ model: "claude-other-9" });
+  try {
+    const result = await runClaudeCode(root, missionPath, {
+      runId: "wrong-model", runner: okRunner, collectDiff: noopDiff,
+    });
+    expect(result.result.status).toBe("failed");
+    expect(result.exitCode).not.toBe(0);
+    expect(result.result.errors.join("\n")).toMatch(/route outside the configured assignment/);
+    expect(result.result.model).toBe(MODEL);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("error subtypes and permission denials fail the run", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const stdout = JSON.stringify({
+      type: "result", subtype: "error_max_turns", is_error: true, num_turns: 5, result: "stopped",
+      permission_denials: [{ tool_name: "Bash", tool_use_id: "t1" }],
+    });
+    const result = await runClaudeCode(root, missionPath, {
+      runId: "denied", runner: async () => ({ stdout, stderr: "", exitCode: 1, timedOut: false }), collectDiff: noopDiff,
+    });
+    expect(result.result.status).toBe("failed");
+    expect(result.exitCode).not.toBe(0);
+    expect(result.result.errors.join("\n")).toMatch(/Runtime reported failure/);
+    expect(result.result.errors.join("\n")).toMatch(/Claude Code permission denials: Bash/);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a stream without a terminal result is never passed", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const stdout = [
+      { type: "system", subtype: "init", session_id: "sess-1", model: MODEL },
+      { type: "assistant", message: { role: "assistant", model: MODEL, content: [{ type: "text", text: "Halfway" }] } },
+    ].map(value => JSON.stringify(value)).join("\n");
+    const result = await runClaudeCode(root, missionPath, {
+      runId: "no-terminal", runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }), collectDiff: noopDiff,
+    });
+    expect(result.result.status).toBe("failed");
+    expect(result.exitCode).not.toBe(0);
+    expect(result.result.errors).toContain("Claude Code did not emit a terminal result");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("parseClaudeCodeResult accepts flat and nested result shapes", () => {
+  const flat = parseClaudeCodeResult({ result: "done", total_cost_usd: 0.1, permission_denials: [{ tool_name: "Bash" }] }, MODEL);
+  expect(flat.finalText).toBe("done");
+  expect(flat.costUsd).toBe(0.1);
+  expect(flat.permissionDenials).toEqual(["Bash"]);
+  const nested = parseClaudeCodeResult({
+    result: { result: "inner" },
+    modelUsage: { [MODEL]: { input_tokens: 5, output_tokens: 2 } },
+  }, MODEL);
+  expect(nested.finalText).toBe("inner");
+  expect(nested.usage).toMatchObject({ source: "runtime", input_tokens: 5, output_tokens: 2, model: MODEL });
+});
+
+async function writePriorAttempt(root: string, missionPath: string, runId: string, control: Record<string, unknown> = {}): Promise<string> {
+  const runDir = path.join(path.dirname(missionPath), "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  await writeFile(path.join(runDir, "runtime-control.json"), JSON.stringify({
+    schema_version: "uh.runtime-control.v0", mission_id: "one", run_id: runId, runtime: "claude-code",
+    controller_pid: process.pid, started_at: "2026-01-01T00:00:00.000Z", heartbeat_at: "2026-01-01T00:00:01.000Z",
+    status: "failed", stop_code: "timeout", stop_reason: "Runtime wall-time limit reached", session_id: "sess-prev",
+    turns: 2, denials: 0, inflight_tools: 0, ...control,
+  }));
+  await writeFile(path.join(runDir, "runtime-session.yaml"), stringify({
+    schema_version: "uh.runtime-session.v0", mission_id: "one", runtime: "claude-code", status: "failed",
+    command: "claude", started_at: "2026-01-01T00:00:00.000Z", finished_at: "2026-01-01T00:00:01.000Z", exit_code: 1,
+  }));
+  await writeFile(path.join(runDir, "runtime-result.yaml"), stringify({
+    schema_version: "uh.runtime-result.v0", mission_id: "one", runtime: "claude-code", status: "failed",
+    started_at: "2026-01-01T00:00:00.000Z", finished_at: "2026-01-01T00:00:01.000Z", exit_code: 1,
+    prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+    errors: ["Runtime wall-time limit reached"],
+  }));
+  return runDir;
+}
+
+const RESUME_OVERRIDES = { resume_from_run: "20260101T000000Z-prior1", recovery_notes: "Continue after timeout." };
+
+test("resume_from_run attaches to the saved native session and records recovery provenance", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    await writePriorAttempt(root, missionPath, "20260101T000000Z-prior1");
+    const plan = await planClaudeCodeRun(root, missionPath, { extraRuntimeConfigOverrides: RESUME_OVERRIDES });
+    expect(plan.resume).toMatchObject({ sourceRunId: "20260101T000000Z-prior1", sessionId: "sess-prev" });
+    expect(flag(plan.args, "--resume")).toBe("sess-prev");
+    expect(plan.prompt).toContain("Recovery of prior attempt 20260101T000000Z-prior1");
+    await runClaudeCode(root, missionPath, {
+      runId: "resume-run", extraRuntimeConfigOverrides: RESUME_OVERRIDES, runner: okRunner, collectDiff: noopDiff,
+    });
+    const record = JSON.parse(await readFile(path.join(path.dirname(missionPath), "runs", "resume-run", "runtime-recovery.json"), "utf8"));
+    expect(record).toMatchObject({
+      schema_version: "uh.runtime-recovery.v0", source_run_id: "20260101T000000Z-prior1", session_id: "sess-prev",
+    });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("resume_from_run refuses missing and unsettled prior attempts", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    await expect(planClaudeCodeRun(root, missionPath, { extraRuntimeConfigOverrides: RESUME_OVERRIDES })).rejects.toThrow();
+    await writePriorAttempt(root, missionPath, "20260101T000000Z-prior1", { status: "running" });
+    await expect(planClaudeCodeRun(root, missionPath, { extraRuntimeConfigOverrides: RESUME_OVERRIDES })).rejects.toThrow(/settled/);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("independent review bindings admit the claude-code runtime", () => {
+  const binding = IndependentReviewBindingSchema.parse({
+    request_path: "request.json", request_sha256: "a".repeat(64), report_path: "report.md",
+    runtime: "claude-code", model: MODEL,
+  });
+  expect(binding.runtime).toBe("claude-code");
+});
+
+function runHook(input: unknown, env: NodeJS.ProcessEnv): Promise<{ code: number | null; stdout: string; stderr: string }> {
+  const hook = fileURLToPath(new URL("../src/extensions/tool-guard/claude-code-hook.ts", import.meta.url));
+  return new Promise((resolve, reject) => {
+    const child = spawn(process.execPath, ["--import", "tsx", hook], { env, stdio: ["pipe", "pipe", "pipe"], windowsHide: true });
+    let stdout = "";
+    let stderr = "";
+    child.stdout.on("data", chunk => { stdout += String(chunk); });
+    child.stderr.on("data", chunk => { stderr += String(chunk); });
+    child.on("error", reject);
+    child.on("close", code => resolve({ code, stdout, stderr }));
+    child.stdin.end(JSON.stringify(input));
+  });
+}
+
+test("the PreToolUse hook fails closed without a policy and denies protected writes", { timeout: 120_000 }, async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-claude-hook-"));
+  try {
+    const missing = await runHook(
+      { tool_name: "Bash", tool_input: { command: "echo hi" } },
+      { ...process.env, UH_TOOL_GUARD_POLICY: "", UH_TOOL_GUARD_LOG: "" },
+    );
+    expect(JSON.parse(missing.stdout)).toMatchObject({
+      hookSpecificOutput: { hookEventName: "PreToolUse", permissionDecision: "deny" },
+    });
+    const policyPath = path.join(root, "tool-guard.json");
+    const logPath = path.join(root, "tool-guard.log");
+    await writeFile(policyPath, JSON.stringify({
+      schema_version: "uh.tool-guard.v0", write_roots: ["."], deny_git_mutations: true,
+      deny_package_installs: true, deny_network_clients: true, agent_clients: ["omp", "cmdc"],
+      worker_root: root, protected_paths: [".harness", ".git"], controller_commands: false,
+    }));
+    const hookEnv = { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+    const denied = await runHook(
+      { tool_name: "Write", tool_input: { file_path: path.join(root, ".harness", "steal.md") } },
+      hookEnv,
+    );
+    expect(JSON.parse(denied.stdout)).toMatchObject({
+      hookSpecificOutput: { hookEventName: "PreToolUse", permissionDecision: "deny" },
+    });
+    const allowed = await runHook(
+      { tool_name: "Write", tool_input: { file_path: path.join(root, "out", "notes.md") } },
+      hookEnv,
+    );
+    expect(allowed.stdout).toBe("");
+    expect(allowed.code).toBe(0);
+    const log = (await readFile(logPath, "utf8")).split(/\r?\n/).filter(Boolean).map(line => JSON.parse(line));
+    expect(log.map(entry => entry.class)).toEqual(["protected_root", "allow"]);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
diff --git a/tests/cli-mcp.test.ts b/tests/cli-mcp.test.ts
new file mode 100644
index 0000000..a3a668c
--- /dev/null
+++ b/tests/cli-mcp.test.ts
@@ -0,0 +1,184 @@
+import { describe, expect, test, beforeEach, afterEach } from "vitest";
+import { mkdtemp, rm } from "node:fs/promises";
+import { spawn } from "node:child_process";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { initializeHarness } from "../src/harness/init.js";
+
+let TEST_ROOT: string;
+
+beforeEach(async () => {
+  TEST_ROOT = await mkdtemp(join(tmpdir(), "uh-test-cli-mcp-"));
+  await initializeHarness(TEST_ROOT);
+});
+
+afterEach(async () => {
+  if (TEST_ROOT) {
+    await rm(TEST_ROOT, { recursive: true, force: true });
+  }
+});
+
+interface McpRunResult {
+  code: number | null;
+  signal: NodeJS.Signals | null;
+  stdout: string;
+  stderr: string;
+}
+
+function withResolvers<T>() {
+  let resolve!: (value: T) => void;
+  let reject!: (reason?: unknown) => void;
+  const promise = new Promise<T>((res, rej) => {
+    resolve = res;
+    reject = rej;
+  });
+  return { promise, resolve, reject };
+}
+
+function runUhMcp(args: string[], inputMessages: unknown[]): Promise<McpRunResult> {
+  const { promise, resolve, reject } = withResolvers<McpRunResult>();
+  const child = spawn(
+    process.execPath,
+    ["--import", "tsx", "src/cli.ts", ...args],
+    { cwd: process.cwd() },
+  );
+
+  let stdout = "";
+  let stderr = "";
+
+  child.stdout.on("data", (chunk: Buffer) => {
+    stdout += chunk.toString("utf-8");
+  });
+  child.stderr.on("data", (chunk: Buffer) => {
+    stderr += chunk.toString("utf-8");
+  });
+
+  child.on("error", reject);
+  child.on("close", (code, signal) => {
+    resolve({ code, signal, stdout, stderr });
+  });
+
+  for (const msg of inputMessages) {
+    const line = typeof msg === "string" ? msg : JSON.stringify(msg);
+    child.stdin.write(line + "\n");
+  }
+  child.stdin.end();
+  return promise;
+}
+
+describe("uh mcp serve CLI", () => {
+  test("serves JSON-RPC protocol over stdin/stdout and exits 0 on stdin close", async () => {
+    const discoverRequest = {
+      jsonrpc: "2.0",
+      id: 1,
+      method: "server/discover",
+    };
+    const toolsListRequest = {
+      jsonrpc: "2.0",
+      id: 2,
+      method: "tools/list",
+    };
+
+    const result = await runUhMcp(
+      ["mcp", "serve", "--root", TEST_ROOT],
+      [discoverRequest, toolsListRequest],
+    );
+
+    expect(result.code).toBe(0);
+
+    const lines = result.stdout
+      .trim()
+      .split("\n")
+      .map((line) => line.trim())
+      .filter((line) => line.length > 0);
+
+    expect(lines.length).toBe(2);
+
+    // Assert that every stdout line parses as JSON-RPC
+    const parsedResponses = lines.map((line) => {
+      const parsed = JSON.parse(line) as {
+        jsonrpc: string;
+        id: number;
+        result?: Record<string, unknown>;
+        error?: Record<string, unknown>;
+      };
+      expect(parsed.jsonrpc).toBe("2.0");
+      return parsed;
+    });
+
+    // Assert the two responses match their ids
+    expect(parsedResponses[0].id).toBe(1);
+    expect(parsedResponses[1].id).toBe(2);
+
+    // Assert the tool names are exactly uh_status, uh_runs, uh_run in that order
+    const tools = (parsedResponses[1].result?.tools ?? []) as Array<{ name: string }>;
+    const toolNames = tools.map((t) => t.name);
+    expect(toolNames).toEqual(["uh_status", "uh_runs", "uh_run"]);
+
+    // Assert stdout contains no absolute path of the temporary project
+    expect(result.stdout).not.toContain(TEST_ROOT);
+    expect(result.stdout).not.toContain(TEST_ROOT.replace(/\\/g, "/"));
+  }, 30_000);
+
+  test("handles uh_status tool call and returns valid protocol message without leaking project root", async () => {
+    const callRequest = {
+      jsonrpc: "2.0",
+      id: "status-call-42",
+      method: "tools/call",
+      params: {
+        name: "uh_status",
+        arguments: {},
+      },
+    };
+
+    const result = await runUhMcp(
+      ["mcp", "serve", "--root", TEST_ROOT],
+      [callRequest],
+    );
+
+    expect(result.code).toBe(0);
+    const lines = result.stdout
+      .trim()
+      .split("\n")
+      .map((line) => line.trim())
+      .filter((line) => line.length > 0);
+
+    expect(lines.length).toBe(1);
+    const parsed = JSON.parse(lines[0]) as {
+      jsonrpc: string;
+      id: string;
+      result?: { content: Array<{ type: string; text: string }> };
+    };
+    expect(parsed.jsonrpc).toBe("2.0");
+    expect(parsed.id).toBe("status-call-42");
+    expect(parsed.result).toBeDefined();
+
+    // Verify stdout contains no absolute path
+    expect(result.stdout).not.toContain(TEST_ROOT);
+    expect(result.stdout).not.toContain(TEST_ROOT.replace(/\\/g, "/"));
+  }, 30_000);
+
+  test("returns JSON-RPC parse error on malformed input without writing banners or non-protocol output to stdout", async () => {
+    const result = await runUhMcp(
+      ["mcp", "serve", "--root", TEST_ROOT],
+      ["NOT VALID JSON"],
+    );
+
+    expect(result.code).toBe(0);
+    const lines = result.stdout
+      .trim()
+      .split("\n")
+      .map((line) => line.trim())
+      .filter((line) => line.length > 0);
+
+    expect(lines.length).toBe(1);
+    const parsed = JSON.parse(lines[0]) as {
+      jsonrpc: string;
+      id: unknown;
+      error?: { code: number; message: string };
+    };
+    expect(parsed.jsonrpc).toBe("2.0");
+    expect(parsed.id).toBeNull();
+    expect(parsed.error?.code).toBe(-32700);
+  }, 30_000);
+});
diff --git a/tests/cli-observatory.test.ts b/tests/cli-observatory.test.ts
new file mode 100644
index 0000000..64042a4
--- /dev/null
+++ b/tests/cli-observatory.test.ts
@@ -0,0 +1,805 @@
+import { describe, expect, test, beforeEach, afterEach } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { access, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+
+const execFileP = promisify(execFile);
+
+let TEST_ROOT: string;
+
+beforeEach(async () => {
+  TEST_ROOT = await mkdtemp(join(tmpdir(), "uh-test-observatory-"));
+  await initializeHarness(TEST_ROOT);
+});
+
+afterEach(async () => {
+  if (TEST_ROOT) {
+    await rm(TEST_ROOT, { recursive: true, force: true });
+  }
+});
+
+async function runUh(args: string[]) {
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], {
+    cwd: process.cwd(),
+    timeout: 30_000,
+    env: {
+      ...process.env,
+      UH_TELEMETRY: "",
+      UH_POSTHOG_API_KEY: "",
+    },
+  });
+}
+
+async function runUhFailure(args: string[]) {
+  try {
+    const result = await runUh(args);
+    throw new Error(`expected uh ${args.join(" ")} to fail, got stdout=${result.stdout} stderr=${result.stderr}`);
+  } catch (err) {
+    const e = err as Error & { code?: number; stdout?: string; stderr?: string };
+    expect(e.code).not.toBe(0);
+    return { stdout: e.stdout ?? "", stderr: e.stderr ?? "", code: e.code };
+  }
+}
+
+async function createFixtureRuns(missionId = "mission-alpha") {
+  const missionDir = join(TEST_ROOT, ".harness", "missions", missionId);
+  const runsDir = join(missionDir, "runs");
+  await mkdir(runsDir, { recursive: true });
+
+  // Mission document
+  await writeFile(
+    join(missionDir, "mission.yaml"),
+    stringify({
+      schema_version: "uh.mission.v0",
+      id: missionId,
+      title: "Observatory Test Mission",
+      workflow_profile: "spec-first-feature",
+      objective: "Test observatory runs and export commands",
+    }),
+    "utf-8",
+  );
+
+  // Fixture Run 1: Passed run with known cost and duration
+  const run1Dir = join(runsDir, "run-pass-1");
+  await mkdir(run1Dir, { recursive: true });
+  await writeFile(
+    join(run1Dir, "runtime-result.yaml"),
+    stringify({
+      schema_version: "uh.runtime-result.v0",
+      mission_id: missionId,
+      runtime: "hermes",
+      status: "passed",
+      started_at: "2026-09-21T10:00:00.000Z",
+      finished_at: "2026-09-21T10:00:02.000Z",
+      prompt_path: "prompt.md",
+      stdout_path: "stdout.log",
+      stderr_path: "stderr.log",
+      provider: "provider-a",
+      model: "model-a",
+      cost_usd: 1.25,
+      usage: {
+        source: "runtime",
+        input_tokens: 100,
+        output_tokens: 20,
+        cost_usd: 1.25,
+      },
+    }),
+    "utf-8",
+  );
+  await writeFile(
+    join(run1Dir, "runtime-control.json"),
+    JSON.stringify({
+      schema_version: "uh.runtime-control.v0",
+      mission_id: missionId,
+      run_id: "run-pass-1",
+      runtime: "hermes",
+      controller_pid: 1234,
+      started_at: "2026-09-21T10:00:00.000Z",
+      heartbeat_at: "2026-09-21T10:00:02.000Z",
+      status: "passed",
+      turns: 3,
+      denials: 0,
+      inflight_tools: 0,
+    }),
+    "utf-8",
+  );
+  await writeFile(
+    join(run1Dir, "events.ndjson"),
+    [
+      JSON.stringify({ type: "session_start", timestamp: "2026-09-21T10:00:00.000Z" }),
+      JSON.stringify({
+        type: "message_end",
+        message: { role: "assistant", model: "model-a", usage: { input_tokens: 100, output_tokens: 20 } },
+        timestamp: "2026-09-21T10:00:01.000Z",
+      }),
+    ].join("\n") + "\n",
+    "utf-8",
+  );
+
+  // Fixture Run 2: Failed run with unknown cost, duration, and stop_code
+  const run2Dir = join(runsDir, "run-fail-2");
+  await mkdir(run2Dir, { recursive: true });
+  await writeFile(
+    join(run2Dir, "runtime-result.yaml"),
+    stringify({
+      schema_version: "uh.runtime-result.v0",
+      mission_id: missionId,
+      runtime: "codex",
+      status: "failed",
+      prompt_path: "prompt.md",
+      stdout_path: "stdout.log",
+      stderr_path: "stderr.log",
+    }),
+    "utf-8",
+  );
+  await writeFile(
+    join(run2Dir, "runtime-control.json"),
+    JSON.stringify({
+      schema_version: "uh.runtime-control.v0",
+      mission_id: missionId,
+      run_id: "run-fail-2",
+      runtime: "codex",
+      controller_pid: 5678,
+      started_at: "2026-09-21T10:05:00.000Z",
+      heartbeat_at: "2026-09-21T10:05:05.000Z",
+      status: "failed",
+      stop_code: "timeout",
+      stop_reason: "Execution exceeded timeout",
+      turns: 1,
+      denials: 0,
+      inflight_tools: 0,
+    }),
+    "utf-8",
+  );
+  await writeFile(
+    join(run2Dir, "events.ndjson"),
+    JSON.stringify({ type: "session_start", timestamp: "2026-09-21T10:05:00.000Z" }) + "\n",
+    "utf-8",
+  );
+
+  // Pointer to latest run (pointing to run-pass-1)
+  await writeFile(
+    join(missionDir, "latest.json"),
+    JSON.stringify({
+      schema_version: "uh.latest-run.v0",
+      run_id: "run-pass-1",
+      started_at: "2026-09-21T10:00:00.000Z",
+      finished_at: "2026-09-21T10:00:02.000Z",
+      status: "passed",
+    }),
+    "utf-8",
+  );
+
+  // Runs index
+  await writeFile(
+    join(runsDir, "index.json"),
+    JSON.stringify({
+      schema_version: "uh.runs-index.v0",
+      mission_id: missionId,
+      entries: [
+        { run_id: "run-pass-1", started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:00:02.000Z", status: "passed", runtime: "hermes" },
+        { run_id: "run-fail-2", started_at: "2026-09-21T10:05:00.000Z", status: "failed", runtime: "codex" },
+      ],
+    }),
+    "utf-8",
+  );
+}
+
+async function createArmRuns(missionId: string, arms: Array<{ template: string; passed: number; failed: number; cost?: number }>) {
+  const missionDir = join(TEST_ROOT, ".harness", "missions", missionId);
+  const runsDir = join(missionDir, "runs");
+  await mkdir(runsDir, { recursive: true });
+  await writeFile(
+    join(missionDir, "mission.yaml"),
+    stringify({
+      schema_version: "uh.mission.v0",
+      id: missionId,
+      title: "Arm Comparison Mission",
+      workflow_profile: "spec-first-feature",
+      objective: "Compare two session templates",
+    }),
+    "utf-8",
+  );
+
+  for (const armSpec of arms) {
+    for (const [index, status] of Array.from({ length: armSpec.passed + armSpec.failed }, (_, i) => (i < armSpec.passed ? "passed" : "failed")).entries()) {
+      const runId = `${armSpec.template}-${status}-${index}`;
+      const runDir = join(runsDir, runId);
+      await mkdir(runDir, { recursive: true });
+      await writeFile(
+        join(runDir, "runtime-result.yaml"),
+        stringify({
+          schema_version: "uh.runtime-result.v0",
+          mission_id: missionId,
+          runtime: "hermes",
+          status,
+          started_at: "2026-09-21T10:00:00.000Z",
+          finished_at: "2026-09-21T10:00:02.000Z",
+          prompt_path: "prompt.md",
+          stdout_path: "stdout.log",
+          stderr_path: "stderr.log",
+          provider: "provider-a",
+          model: "model-a",
+          usage: armSpec.cost === undefined
+            ? { source: "runtime", input_tokens: 100, output_tokens: 20 }
+            : { source: "runtime", input_tokens: 100, output_tokens: 20, cost_usd: armSpec.cost, cost_basis: "provider_reported" },
+        }),
+        "utf-8",
+      );
+      await writeFile(
+        join(runDir, "session-template.json"),
+        JSON.stringify({ template_id: armSpec.template, tier: armSpec.template, containment: "standard", overridden_by_mission: [] }),
+        "utf-8",
+      );
+    }
+  }
+}
+
+describe("uh observatory runs", () => {
+  test("lists runs in JSON format matching RunRecord shape", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh(["observatory", "runs", "--root", TEST_ROOT, "--json"]);
+    const records = JSON.parse(stdout) as Array<{
+      mission_id: string;
+      run_id: string;
+      runtime?: string;
+      status?: string;
+      stop_code?: string;
+      cost_usd?: number;
+      cost_source?: string;
+      duration_ms?: number;
+      token_totals?: { input?: number; output?: number; cache_read?: number; cache_write?: number };
+    }>;
+
+    expect(Array.isArray(records)).toBe(true);
+    expect(records).toHaveLength(2);
+
+    const run1 = records.find((r) => r.run_id === "run-pass-1");
+    expect(run1).toBeDefined();
+    expect(run1).toMatchObject({
+      mission_id: "mission-alpha",
+      run_id: "run-pass-1",
+      runtime: "hermes",
+      status: "passed",
+      duration_ms: 2000,
+      cost_usd: 1.25,
+      cost_source: "estimated",
+      token_totals: { input: 100, output: 20 },
+    });
+
+    const run2 = records.find((r) => r.run_id === "run-fail-2");
+    expect(run2).toBeDefined();
+    expect(run2).toMatchObject({
+      mission_id: "mission-alpha",
+      run_id: "run-fail-2",
+      runtime: "codex",
+      status: "failed",
+      stop_code: "timeout",
+    });
+    expect(run2?.cost_usd).toBeUndefined();
+    expect(run2?.duration_ms).toBeUndefined();
+  });
+
+  test("renders plain aligned table and prints unknown for missing values, never 0", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh(["observatory", "runs", "--root", TEST_ROOT]);
+
+    // Check table headers
+    expect(stdout).toMatch(/MISSION_ID\s+RUN_ID\s+RUNTIME\s+MODEL\s+WORKFLOW_PROFILE\s+STATUS\s+STOP_CODE\s+DURATION\s+TOKENS\s+COST\s+COST_SOURCE/);
+
+    // Run 1 has known values
+    expect(stdout).toContain("run-pass-1");
+    expect(stdout).toContain("hermes");
+    expect(stdout).toContain("2000ms");
+    expect(stdout).toContain("$1.25");
+
+    // Run 2 has missing cost and duration: must render as "unknown", NEVER as 0 or $0
+    expect(stdout).toContain("run-fail-2");
+    expect(stdout).toContain("codex");
+    expect(stdout).toContain("timeout");
+
+    // The line for run-fail-2 must have "unknown" in the duration and cost columns
+    const lines = stdout.trim().split("\n");
+    const run2Line = lines.find((l) => l.includes("run-fail-2"));
+    expect(run2Line).toBeDefined();
+    expect(run2Line).toContain("unknown");
+    // Ensure run-fail-2 never renders 0 or $0
+    expect(run2Line).not.toMatch(/\$0(?:\.0+)?(?:\s|$)/);
+    expect(run2Line).not.toMatch(/\s0ms(?:\s|$)/);
+  });
+
+  test("supports --group-by with --json returning summaries and pareto_frontier", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh(["observatory", "runs", "--root", TEST_ROOT, "--group-by", "runtime", "--json"]);
+    const parsed = JSON.parse(stdout) as {
+      summaries: Array<{
+        key?: string;
+        runs: number;
+        passed: number;
+        success_rate: number;
+        mean_cost_usd?: number;
+      }>;
+      pareto_frontier: Array<{ key?: string }>;
+    };
+
+    expect(parsed.summaries).toBeDefined();
+    expect(parsed.pareto_frontier).toBeDefined();
+    expect(parsed.summaries.length).toBe(2);
+
+    const hermes = parsed.summaries.find((s) => s.key === "hermes");
+    expect(hermes).toMatchObject({
+      key: "hermes",
+      runs: 1,
+      passed: 1,
+      success_rate: 1,
+      mean_cost_usd: 1.25,
+    });
+
+    const codex = parsed.summaries.find((s) => s.key === "codex");
+    expect(codex).toMatchObject({
+      key: "codex",
+      runs: 1,
+      passed: 0,
+      success_rate: 0,
+    });
+    expect(codex?.mean_cost_usd).toBeUndefined();
+
+    // Hermes has 100% success rate with known cost, so it's on the pareto frontier
+    expect(parsed.pareto_frontier.map((p) => p.key)).toContain("hermes");
+  });
+
+  test("renders plain aligned table for --group-by marking pareto frontier and unknown values", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh(["observatory", "runs", "--root", TEST_ROOT, "--group-by", "runtime"]);
+
+    expect(stdout).toMatch(/RUNTIME\s+RUNS\s+PASSED\s+SUCCESS_RATE\s+MEAN_COST\s+TOTAL_COST\s+MEAN_DURATION\s+PARETO/);
+    expect(stdout).toContain("hermes");
+    expect(stdout).toContain("codex");
+
+    const lines = stdout.trim().split("\n");
+    const hermesLine = lines.find((l) => l.includes("hermes"));
+    expect(hermesLine).toBeDefined();
+    expect(hermesLine).toContain("yes");
+
+    const codexLine = lines.find((l) => l.includes("codex"));
+    expect(codexLine).toBeDefined();
+    expect(codexLine).toContain("no");
+    // codex unknown mean cost rendered as unknown, never 0
+    expect(codexLine).toContain("unknown");
+    expect(codexLine).not.toMatch(/\$0(?:\.0+)?(?:\s|$)/);
+  });
+
+  test("rejects invalid --group-by dimension", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const res = await runUhFailure(["observatory", "runs", "--root", TEST_ROOT, "--group-by", "invalid_dim"]);
+    expect(`${res.stdout}${res.stderr}`).toMatch(/must be one of runtime, model, workflow_profile, stop_code/i);
+  });
+
+  test("shows native token totals and operator-priced provenance for a command-code run", async () => {
+    const missionDir = join(TEST_ROOT, ".harness", "missions", "mission-cmdc");
+    const runDir = join(missionDir, "runs", "run-cmdc-usage");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(
+      join(missionDir, "mission.yaml"),
+      stringify({
+        schema_version: "uh.mission.v0",
+        id: "mission-cmdc",
+        title: "Command Code Usage",
+        workflow_profile: "spec-first-feature",
+        objective: "Test native token totals",
+      }),
+      "utf-8",
+    );
+    await writeFile(
+      join(runDir, "runtime-result.yaml"),
+      stringify({
+        schema_version: "uh.runtime-result.v0",
+        mission_id: "mission-cmdc",
+        runtime: "command-code",
+        status: "passed",
+        started_at: "2026-09-22T00:00:00.000Z",
+        finished_at: "2026-09-22T00:01:00.000Z",
+        prompt_path: "prompt.md",
+        stdout_path: "stdout.log",
+        stderr_path: "stderr.log",
+      }),
+      "utf-8",
+    );
+    await writeFile(
+      join(runDir, "events.ndjson"),
+      await readFile(join(process.cwd(), "tests", "fixtures", "runtime-events", "command-code-usage.ndjson"), "utf-8"),
+      "utf-8",
+    );
+    await writeFile(
+      join(TEST_ROOT, ".harness", "prices.yaml"),
+      [
+        "schema_version: uh.prices.v0",
+        "models:",
+        "  qwen/qwen3.8-flash:",
+        "    input_usd_per_million: 2",
+        "    output_usd_per_million: 8",
+        "    cache_read_usd_per_million: 0.4",
+        "    cache_write_usd_per_million: 1",
+        '    source: "test placeholder, not a real price"',
+      ].join("\n") + "\n",
+      "utf-8",
+    );
+
+    const { stdout } = await runUh(["observatory", "runs", "--root", TEST_ROOT]);
+    const line = stdout.split("\n").find((l) => l.includes("run-cmdc-usage"));
+    expect(line).toBeDefined();
+    // 39076 input + 580 output + 18432 cache-read + 0 cache-write.
+    expect(line).toContain("58088");
+    expect(line).toContain("$0.0902");
+    expect(line).toContain("estimated");
+
+    const { stdout: json } = await runUh(["observatory", "runs", "--root", TEST_ROOT, "--json"]);
+    const record = (JSON.parse(json) as Array<{
+      run_id: string;
+      cost_usd?: number;
+      cost_source?: string;
+      token_totals?: { input?: number; output?: number; cache_read?: number; cache_write?: number };
+    }>).find((r) => r.run_id === "run-cmdc-usage");
+    expect(record?.token_totals).toEqual({ input: 39076, output: 580, cache_read: 18432, cache_write: 0 });
+    expect(record?.cost_usd).toBeCloseTo(0.0901648, 12);
+    expect(record?.cost_source).toBe("estimated");
+  });
+});
+
+describe("uh observatory export", () => {
+  test("requires --otlp option", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const res = await runUhFailure(["observatory", "export", "mission-alpha", "--root", TEST_ROOT]);
+    expect(`${res.stdout}${res.stderr}`).toContain("--otlp");
+  });
+
+  test("exports latest run to stdout as OTLP JSON structure", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh(["observatory", "export", "mission-alpha", "--otlp", "--root", TEST_ROOT]);
+    const exportData = JSON.parse(stdout) as {
+      resourceSpans?: Array<{
+        resource: { attributes: Array<{ key: string; value: unknown }> };
+        scopeSpans: Array<{
+          spans: Array<{
+            name: string;
+            traceId: string;
+            spanId: string;
+            attributes: Array<{ key: string; value: unknown }>;
+          }>;
+        }>;
+      }>;
+    };
+
+    expect(exportData.resourceSpans).toBeDefined();
+    expect(exportData.resourceSpans!.length).toBeGreaterThan(0);
+    const spans = exportData.resourceSpans![0].scopeSpans[0].spans;
+    expect(spans.length).toBeGreaterThan(0);
+    // Root span exists
+    expect(spans[0].traceId).toBeDefined();
+    expect(spans[0].spanId).toBeDefined();
+  });
+
+  test("exports specific run with --run-id and includes tool targets when requested", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const { stdout } = await runUh([
+      "observatory",
+      "export",
+      "mission-alpha",
+      "--otlp",
+      "--run-id",
+      "run-pass-1",
+      "--include-tool-targets",
+      "--root",
+      TEST_ROOT,
+    ]);
+    const exportData = JSON.parse(stdout) as { resourceSpans?: unknown[] };
+    expect(exportData.resourceSpans).toBeDefined();
+  });
+
+  test("writes export to --out file inside project root", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const outRel = "exported-trace.json";
+    const { stdout } = await runUh([
+      "observatory",
+      "export",
+      "mission-alpha",
+      "--otlp",
+      "--run-id",
+      "run-pass-1",
+      "--out",
+      outRel,
+      "--root",
+      TEST_ROOT,
+    ]);
+
+    expect(stdout).toBe("");
+    const fileContent = await readFile(join(TEST_ROOT, outRel), "utf-8");
+    const parsed = JSON.parse(fileContent) as { resourceSpans?: unknown[] };
+    expect(parsed.resourceSpans).toBeDefined();
+  });
+
+  test("refuses --out path outside project root", async () => {
+    await createFixtureRuns("mission-alpha");
+
+    const outsidePath = "../outside-trace.json";
+    const res = await runUhFailure([
+      "observatory",
+      "export",
+      "mission-alpha",
+      "--otlp",
+      "--run-id",
+      "run-pass-1",
+      "--out",
+      outsidePath,
+      "--root",
+      TEST_ROOT,
+    ]);
+
+    expect(`${res.stdout}${res.stderr}`).toMatch(/--out path must resolve inside the project root/i);
+    // Ensure file was not created outside root
+    await expect(access(join(TEST_ROOT, outsidePath))).rejects.toThrow();
+  });
+});
+
+describe("uh mission run terminal contract", () => {
+  test("preflight failure prints [BLOCKED] and exits with code 2", async () => {
+    const missionPath = join(TEST_ROOT, "blocked-mission.yaml");
+    await writeFile(
+      missionPath,
+      stringify({
+        schema_version: "uh.mission.v0",
+        id: "blocked-mission",
+        title: "Blocked Mission",
+        workflow_profile: "spec-first-feature",
+        objective: "Test blocked preflight",
+        runtime_requirements: {
+          min_context_tokens: 999999999,
+        },
+      }),
+      "utf-8",
+    );
+
+    const res = await runUhFailure(["mission", "run", missionPath, "--runtime", "hermes", "--root", TEST_ROOT]);
+    expect(res.code).toBe(2);
+    expect(`${res.stdout}${res.stderr}`).toContain("[BLOCKED]");
+  });
+
+  test("prints UH_RESULT as the last line with relative run_dir and suppressed output on --quiet", async () => {
+    // Copy hermes adapter manifest
+    await mkdir(join(TEST_ROOT, ".harness", "adapters"), { recursive: true });
+    await writeFile(
+      join(TEST_ROOT, ".harness", "adapters", "hermes.yaml"),
+      await readFile(join(process.cwd(), ".harness", "adapters", "hermes.yaml"), "utf-8"),
+      "utf-8",
+    );
+
+    const missionDir = join(TEST_ROOT, ".harness", "missions", "spine-test");
+    await mkdir(missionDir, { recursive: true });
+    const missionPath = join(missionDir, "mission.yaml");
+    await writeFile(
+      missionPath,
+      stringify({
+        schema_version: "uh.mission.v0",
+        id: "spine-test",
+        title: "Spine Test",
+        workflow_profile: "spec-first-feature",
+        objective: "Test quiet run",
+      }),
+      "utf-8",
+    );
+
+    const res = await runUhFailure(["mission", "run", missionPath, "--runtime", "hermes", "--root", TEST_ROOT, "--quiet"]);
+    expect(res.code).toBe(2);
+
+    const lines = res.stdout.trim().split("\n");
+    const lastLine = lines[lines.length - 1];
+    expect(lastLine).toMatch(/^UH_RESULT /);
+
+    const payload = JSON.parse(lastLine.slice("UH_RESULT ".length)) as {
+      mission_id: string;
+      run_id: string;
+      runtime: string;
+      status: string;
+      stop_code?: string;
+      exit_code: number;
+      run_dir: string;
+    };
+
+    expect(payload.mission_id).toBe("spine-test");
+    expect(payload.runtime).toBe("hermes");
+    expect(payload.run_id).toBeDefined();
+    expect(payload.status).toBe("blocked");
+    expect(payload.exit_code).toBe(2);
+    expect(payload.run_dir).toBe(`.harness/missions/spine-test/runs/${payload.run_id}`);
+    // Verify no absolute paths
+    expect(payload.run_dir).not.toContain(":");
+    expect(payload.run_dir.startsWith("/")).toBe(false);
+    expect(payload.run_dir).not.toContain("\\");
+
+    // With --quiet, runtime prompt/query output should be suppressed
+    expect(res.stdout).not.toContain("=== Rendered mission prompt ===");
+    expect(res.stdout).not.toContain("=== End mission prompt ===");
+  });
+});
+
+describe("uh observatory compare", () => {
+  const COMPARE_MISSION = "compare-mission";
+
+  type ComparisonJson = {
+    by: string;
+    a_value: string;
+    b_value: string;
+    comparison: {
+      a: { runs: number; passed: number; success_rate: number; interval: { low: number; high: number }; known_cost_runs: number; total_cost_usd?: number; mean_cost_usd?: number; cost_per_success_usd?: number; mean_duration_ms?: number };
+      b: ComparisonJson["comparison"]["a"];
+      delta_success_rate: number;
+      intervals_overlap: boolean;
+      cheaper_per_success: string;
+      verdict: string;
+    };
+    plain_repeats_of_weaker: {
+      arm: string;
+      value: string;
+      baseline_success_rate: number;
+      target_success_rate: number;
+      attempts?: number;
+      reaches_target: boolean;
+      mean_cost_usd?: number;
+      total_cost_usd?: number;
+    };
+  };
+
+  async function createTemplateArms() {
+    await createArmRuns(COMPARE_MISSION, [
+      { template: "strict", passed: 9, failed: 1, cost: 2 },
+      { template: "loose", passed: 2, failed: 8, cost: 1 },
+      { template: "opaque", passed: 1, failed: 4 },
+    ]);
+  }
+
+  test("compares two template arms on outcome and cost in JSON", async () => {
+    await createTemplateArms();
+
+    const { stdout } = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict", "--b", "loose", "--json"]);
+    const parsed = JSON.parse(stdout) as ComparisonJson;
+
+    expect(parsed.by).toBe("template");
+    expect(parsed.a_value).toBe("strict");
+    expect(parsed.b_value).toBe("loose");
+    expect(parsed.comparison.a).toMatchObject({ runs: 10, passed: 9, success_rate: 0.9, known_cost_runs: 10, total_cost_usd: 20, mean_cost_usd: 2, mean_duration_ms: 2000 });
+    expect(parsed.comparison.a.cost_per_success_usd).toBeCloseTo(20 / 9, 10);
+    expect(parsed.comparison.a.interval.low).toBeCloseTo(0.5958, 3);
+    expect(parsed.comparison.a.interval.high).toBeCloseTo(0.9821, 3);
+    expect(parsed.comparison.b.interval.low).toBeCloseTo(0.0567, 3);
+    expect(parsed.comparison.b.interval.high).toBeCloseTo(0.5098, 3);
+    expect(parsed.comparison.b).toMatchObject({ runs: 10, passed: 2, success_rate: 0.2, mean_cost_usd: 1, cost_per_success_usd: 5 });
+    expect(parsed.comparison.delta_success_rate).toBeCloseTo(0.7, 10);
+    expect(parsed.comparison.intervals_overlap).toBe(false);
+    expect(parsed.comparison.cheaper_per_success).toBe("a");
+    expect(parsed.comparison.verdict).toBe("a_better");
+
+    // 11 plain runs of the 20% arm reach 91.4%, clearing the strict arm's 90%.
+    expect(parsed.plain_repeats_of_weaker).toMatchObject({ arm: "b", value: "loose", attempts: 11, reaches_target: true, mean_cost_usd: 1 });
+    expect(parsed.plain_repeats_of_weaker.total_cost_usd).toBeCloseTo(11, 10);
+  });
+
+  test("reads the same arms by tier and reports a clear gap as no_clear_difference when intervals overlap", async () => {
+    await createTemplateArms();
+
+    const { stdout } = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "tier", "--a", "loose", "--b", "opaque", "--json"]);
+    const parsed = JSON.parse(stdout) as ComparisonJson;
+    expect(parsed.comparison.verdict).toBe("no_clear_difference");
+    expect(parsed.comparison.intervals_overlap).toBe(true);
+    expect(parsed.comparison.delta_success_rate).toBe(0);
+
+    const plain = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "tier", "--a", "loose", "--b", "opaque"]);
+    expect(plain.stdout).toContain("both arms pass at 20.0%");
+  });
+
+  test("prints both arms, a one-sentence verdict, and the plain-repeats cost", async () => {
+    await createTemplateArms();
+
+    const { stdout } = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict", "--b", "loose"]);
+    expect(stdout).toMatch(/ARM\s+VALUE\s+RUNS\s+PASSED\s+SUCCESS_RATE\s+WILSON_95\s+KNOWN_COST_RUNS\s+MEAN_COST\s+TOTAL_COST\s+COST_PER_SUCCESS\s+MEAN_DURATION/);
+
+    const strictLine = stdout.split("\n").find((line) => line.includes("strict"));
+    expect(strictLine).toContain("59.6% - 98.2%");
+    const looseLine = stdout.split("\n").find((line) => line.includes("loose"));
+    expect(looseLine).toContain("5.7% - 51.0%");
+
+    const verdict = stdout.split("\n").find((line) => line.startsWith("Verdict:"));
+    expect(verdict).toBeDefined();
+    expect(verdict).toContain("a_better");
+    // One sentence: a single terminal period and no sentence break inside.
+    expect((verdict ?? "").split(". ").length).toBe(1);
+    expect((verdict ?? "").endsWith(".")).toBe(true);
+
+    const repeats = stdout.split("\n").find((line) => line.startsWith("Plain repeats:"));
+    expect(repeats).toContain("11 plain repeat(s) of loose at 20.0% would match strict's 90.0%");
+    expect(repeats).toContain("$11.00");
+    expect(repeats).toContain("$1.0000 mean cost per run");
+    expect(stdout).not.toMatch(/\$0(?:\.0+)?(?:\s|$)/);
+  });
+
+  test("keeps unpriced arm cost unknown instead of reading it as free", async () => {
+    await createTemplateArms();
+
+    const { stdout } = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict", "--b", "opaque"]);
+    const opaqueLine = stdout.split("\n").find((line) => line.includes("opaque"));
+    expect(opaqueLine).toBeDefined();
+    expect(opaqueLine).toContain("unknown");
+    expect(opaqueLine).not.toMatch(/\$0(?:\.0+)?(?:\s|$)/);
+
+    const cost = stdout.split("\n").find((line) => line.startsWith("Cost:"));
+    expect(cost).toContain("cheaper per success is unknown");
+
+    const repeats = stdout.split("\n").find((line) => line.startsWith("Plain repeats:"));
+    expect(repeats).toContain("cost unknown because opaque's mean cost per run is unknown");
+
+    const { stdout: json } = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict", "--b", "opaque", "--json"]);
+    const parsed = JSON.parse(json) as ComparisonJson;
+    expect(parsed.comparison.b.known_cost_runs).toBe(0);
+    expect(parsed.comparison.b.total_cost_usd).toBeUndefined();
+    expect(parsed.comparison.b.mean_cost_usd).toBeUndefined();
+    expect(parsed.comparison.b.cost_per_success_usd).toBeUndefined();
+    expect(parsed.comparison.cheaper_per_success).toBe("unknown");
+    expect(parsed.plain_repeats_of_weaker.total_cost_usd).toBeUndefined();
+  });
+
+  test("reports insufficient_data for a thin arm and says plainly when repeats cannot help", async () => {
+    await createArmRuns(COMPARE_MISSION, [
+      { template: "thin", passed: 4, failed: 0, cost: 1 },
+      { template: "never", passed: 0, failed: 6, cost: 1 },
+    ]);
+
+    const thin = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "thin", "--b", "never"]);
+    expect(thin.stdout).toMatch(/Verdict: insufficient_data/);
+    expect(thin.stdout).toContain("at least 5 per arm");
+    // A perfect 4-of-4 is still not allowed to look like a winner.
+    expect(thin.stdout.split("\n").find((line) => line.includes("thin"))).toContain("100.0%");
+    expect(thin.stdout).toContain("none of never's runs passed");
+    expect(thin.stdout).not.toMatch(/\$0(?:\.0+)?(?:\s|$)/);
+
+    const both = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "never", "--b", "never"]);
+    expect(both.stdout).toMatch(/Verdict: no_clear_difference/);
+    expect(both.stdout).toContain("cheaper per success is unknown");
+    expect(both.stdout).toContain("neither arm passed a run");
+  });
+
+  test("rejects an unsupported dimension and a missing arm value", async () => {
+    await createTemplateArms();
+
+    const badDimension = await runUhFailure(["observatory", "compare", "--root", TEST_ROOT, "--by", "status", "--a", "strict", "--b", "loose"]);
+    expect(`${badDimension.stdout}${badDimension.stderr}`).toMatch(/Invalid --by: must be one of template, tier, model, runtime/);
+
+    const missingArm = await runUhFailure(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict"]);
+    expect(`${missingArm.stdout}${missingArm.stderr}`).toMatch(/requires --a <value> and --b <value>/);
+  });
+
+  test("scopes the comparison to one mission with --mission", async () => {
+    await createTemplateArms();
+    await createArmRuns("other-mission", [{ template: "strict", passed: 0, failed: 10, cost: 2 }]);
+
+    const scoped = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--mission", COMPARE_MISSION, "--by", "template", "--a", "strict", "--b", "loose", "--json"]);
+    expect((JSON.parse(scoped.stdout) as ComparisonJson).comparison.a.runs).toBe(10);
+
+    const unscoped = await runUh(["observatory", "compare", "--root", TEST_ROOT, "--by", "template", "--a", "strict", "--b", "loose", "--json"]);
+    const parsed = JSON.parse(unscoped.stdout) as ComparisonJson;
+    expect(parsed.comparison.a.runs).toBe(20);
+    expect(parsed.comparison.a.passed).toBe(9);
+    expect(parsed.comparison.verdict).toBe("no_clear_difference");
+  });
+});
diff --git a/tests/cli-template.test.ts b/tests/cli-template.test.ts
new file mode 100644
index 0000000..8dcf01c
--- /dev/null
+++ b/tests/cli-template.test.ts
@@ -0,0 +1,201 @@
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+
+const execFileP = promisify(execFile);
+
+let TEST_ROOT: string;
+
+async function runUh(args: string[]) {
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], {
+    cwd: process.cwd(),
+    timeout: 30_000,
+    env: {
+      ...process.env,
+      UH_TELEMETRY: "",
+      UH_POSTHOG_API_KEY: "",
+    },
+  });
+}
+
+async function runUhFailure(args: string[]) {
+  try {
+    const result = await runUh(args);
+    throw new Error(`expected uh ${args.join(" ")} to fail, got stdout=${result.stdout} stderr=${result.stderr}`);
+  } catch (err) {
+    const e = err as Error & { code?: number; stdout?: string; stderr?: string };
+    expect(e.code).not.toBe(0);
+    return { stdout: e.stdout ?? "", stderr: e.stderr ?? "", code: e.code };
+  }
+}
+
+async function writeMission(id: string, overrides: Record<string, unknown> = {}) {
+  const missionDir = join(TEST_ROOT, ".harness", "missions", id);
+  await mkdir(missionDir, { recursive: true });
+  const missionPath = join(missionDir, "mission.yaml");
+  await writeFile(missionPath, stringify({
+    schema_version: "uh.mission.v0",
+    id,
+    title: `Mission ${id}`,
+    workflow_profile: "spec-first-feature",
+    objective: "Exercise session templates.",
+    ...overrides,
+  }), "utf-8");
+  return missionPath;
+}
+
+async function writeTemplate(id: string, fields: Record<string, unknown> = {}) {
+  const templatesDir = join(TEST_ROOT, ".harness", "templates");
+  await mkdir(templatesDir, { recursive: true });
+  await writeFile(join(templatesDir, `${id}.yaml`), stringify({
+    schema_version: "uh.session-template.v0",
+    id,
+    title: `Template ${id}`,
+    tier: "balanced",
+    containment: "standard",
+    adapter: "oh-my-pi",
+    ...fields,
+  }), "utf-8");
+}
+
+async function installAdapterManifest(runtime: string) {
+  await mkdir(join(TEST_ROOT, ".harness", "adapters"), { recursive: true });
+  await writeFile(
+    join(TEST_ROOT, ".harness", "adapters", `${runtime}.yaml`),
+    await readFile(join(process.cwd(), ".harness", "adapters", `${runtime}.yaml`), "utf-8"),
+    "utf-8",
+  );
+}
+
+function effectiveOverrides(stdout: string): Record<string, unknown> {
+  const line = stdout.split("\n").find((candidate) => candidate.startsWith("Template effective overrides: "));
+  expect(line, `no effective overrides line in:\n${stdout}`).toBeDefined();
+  return JSON.parse(line!.slice("Template effective overrides: ".length)) as Record<string, unknown>;
+}
+
+beforeEach(async () => {
+  TEST_ROOT = await mkdtemp(join(tmpdir(), "uh-test-template-"));
+  await initializeHarness(TEST_ROOT);
+  await installAdapterManifest("oh-my-pi");
+});
+
+afterEach(async () => {
+  if (TEST_ROOT) {
+    await rm(TEST_ROOT, { recursive: true, force: true });
+  }
+});
+
+describe("uh mission dry-run --template", () => {
+  test("applies a template: prints id, tier, containment, overridden keys, and the template's model and limits", async () => {
+    await writeTemplate("balanced", {
+      runtime_config_overrides: { model: "template-model", thinking: "low" },
+      limits: { max_turns: 15 },
+    });
+    const missionPath = await writeMission("template-applied");
+
+    const { stdout, stderr } = await runUh([
+      "mission", "dry-run", missionPath, "--template", "balanced", "--runtime", "oh-my-pi", "--root", TEST_ROOT,
+    ]);
+
+    expect(stderr).toBe("");
+    expect(stdout).toContain("Template: balanced");
+    expect(stdout).toContain("tier=balanced");
+    expect(stdout).toContain("containment=standard");
+    expect(stdout).toContain("overridden_by_mission=none");
+    expect(stdout).toContain("Command: omp");
+    expect(effectiveOverrides(stdout)).toEqual({
+      model: "template-model",
+      thinking: "low",
+      limits: { max_turns: 15 },
+    });
+  });
+
+  test("mission values win over template values", async () => {
+    await writeTemplate("balanced", {
+      runtime_config_overrides: { model: "template-model", thinking: "low" },
+      limits: { max_turns: 15 },
+    });
+    const missionPath = await writeMission("mission-wins", {
+      runtime_config_overrides: { model: "mission-model" },
+    });
+
+    const { stdout } = await runUh(["mission", "dry-run", missionPath, "--template", "balanced", "--root", TEST_ROOT]);
+
+    expect(stdout).toContain("overridden_by_mission=runtime_config_overrides");
+    const overrides = effectiveOverrides(stdout);
+    expect(overrides.model).toBe("mission-model");
+    expect(overrides.limits).toEqual({ max_turns: 15 });
+  });
+
+  test("an explicit --runtime-config-overrides wins over both mission and template", async () => {
+    await writeTemplate("balanced", {
+      runtime_config_overrides: { model: "template-model" },
+    });
+    const missionPath = await writeMission("cli-wins", {
+      runtime_config_overrides: { model: "mission-model" },
+    });
+
+    const { stdout } = await runUh([
+      "mission", "dry-run", missionPath,
+      "--template", "balanced",
+      "--runtime-config-overrides", "{\"model\":\"cli-model\"}",
+      "--root", TEST_ROOT,
+    ]);
+
+    expect(effectiveOverrides(stdout).model).toBe("cli-model");
+  });
+
+  test("refuses a strict template when the mission has no narrow write roots, with exit code 2", async () => {
+    await writeTemplate("strict-tpl", { containment: "strict" });
+    const missionPath = await writeMission("no-write-roots");
+
+    const res = await runUhFailure(["mission", "dry-run", missionPath, "--template", "strict-tpl", "--root", TEST_ROOT]);
+    expect(res.code).toBe(2);
+    expect(`${res.stdout}${res.stderr}`).toContain("[BLOCKED]");
+    expect(`${res.stdout}${res.stderr}`).toMatch(/write_roots/i);
+  });
+
+  test("refuses an unknown template with exit code 2", async () => {
+    const missionPath = await writeMission("unknown-template");
+
+    const res = await runUhFailure(["mission", "dry-run", missionPath, "--template", "does-not-exist", "--root", TEST_ROOT]);
+    expect(res.code).toBe(2);
+    expect(`${res.stdout}${res.stderr}`).toContain("[BLOCKED]");
+    expect(`${res.stdout}${res.stderr}`).toMatch(/session template not found/i);
+  });
+
+  test("refuses an invalid template with exit code 2", async () => {
+    const templatesDir = join(TEST_ROOT, ".harness", "templates");
+    await mkdir(templatesDir, { recursive: true });
+    await writeFile(join(templatesDir, "invalid.yaml"), stringify({
+      schema_version: "uh.session-template.v0",
+      id: "invalid",
+      title: "Invalid Template",
+      tier: "not-a-tier",
+      adapter: "oh-my-pi",
+    }), "utf-8");
+    const missionPath = await writeMission("invalid-template");
+
+    const res = await runUhFailure(["mission", "dry-run", missionPath, "--template", "invalid", "--root", TEST_ROOT]);
+    expect(res.code).toBe(2);
+    expect(`${res.stdout}${res.stderr}`).toContain("[BLOCKED]");
+  });
+
+  test("refuses a --runtime that conflicts with the template adapter, naming both", async () => {
+    await writeTemplate("balanced", { adapter: "oh-my-pi" });
+    const missionPath = await writeMission("runtime-conflict");
+
+    const res = await runUhFailure([
+      "mission", "dry-run", missionPath, "--template", "balanced", "--runtime", "codex", "--root", TEST_ROOT,
+    ]);
+    expect(res.code).toBe(2);
+    expect(`${res.stdout}${res.stderr}`).toContain("[BLOCKED]");
+    expect(`${res.stdout}${res.stderr}`).toContain("codex");
+    expect(`${res.stdout}${res.stderr}`).toContain("oh-my-pi");
+  });
+});
diff --git a/tests/codex.test.ts b/tests/codex.test.ts
index b4ba7ed..5a470bd 100644
--- a/tests/codex.test.ts
+++ b/tests/codex.test.ts
@@ -1,11 +1,15 @@
-import { test, expect, describe, beforeAll } from "vitest";
+import { test, expect, describe, beforeAll, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, readFile } from "node:fs/promises";
-import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { join, resolve } from "node:path";
 import { parse } from "yaml";
 import { initializeHarness } from "../src/harness/init.js";
 import { validateFile } from "../src/harness/validate.js";
+import { validateAdapter } from "../src/schema/adapter.js";
 import {
   checkCodex,
+  CodexRuntimeConfigSchema,
   detectCodexQuotaError,
   dryRunCodex,
   parseCodexJsonlStream,
@@ -15,7 +19,7 @@ import {
   type DiffCollector,
 } from "../src/adapters/codex.js";
 
-const TEST_ROOT = "/tmp/uh-test-codex-adapter";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-codex-adapter-"));
 
 async function cleanup() {
   try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
@@ -78,6 +82,7 @@ test.beforeEach(async () => {
   await writeCodexManifest();
 });
 test.afterEach(cleanup);
+test.afterAll(cleanup);
 
 describe("uh adapter check codex", () => {
   test("returns valid check result when codex is installed", async () => {
@@ -98,6 +103,41 @@ describe("uh adapter check codex", () => {
   });
 });
 
+  test("accepts an optional model in runtime config", () => {
+    expect(CodexRuntimeConfigSchema.parse({ model: "gpt-5-codex" }).model).toBe("gpt-5-codex");
+  });
+
+test("rejects unknown manifest runtime_config keys while accepting model", () => {
+  const manifest = {
+    schema_version: "uh.adapter.v0",
+    id: "codex",
+    name: "OpenAI Codex",
+    runtime: "codex",
+    config: { runtime_config: { model: "gpt-5-codex", sandbox_modd: "workspace-write" } },
+  };
+
+  expect(() => validateAdapter(manifest)).toThrow(/sandbox_modd/);
+  expect(
+    validateAdapter({ ...manifest, config: { runtime_config: { model: "gpt-5-codex" } } }).config
+      ?.runtime_config,
+  ).toMatchObject({ model: "gpt-5-codex" });
+});
+
+  test("pins the configured model before the prompt and omits it when unset", async () => {
+    const { missionPath } = await writeHarnessMission("model-plan");
+    const pinned = await planCodexRun(TEST_ROOT, missionPath, {
+      extraRuntimeConfigOverrides: { model: "gpt-5-codex" },
+    });
+    const modelIndex = pinned.args.indexOf("-m");
+    expect(modelIndex).toBeGreaterThan(-1);
+    expect(pinned.args[modelIndex + 1]).toBe("gpt-5-codex");
+    expect(modelIndex).toBe(pinned.args.length - 3);
+    expect(pinned.expectedRoute).toEqual({ model: "gpt-5-codex" });
+
+    const unpinned = await planCodexRun(TEST_ROOT, missionPath);
+    expect(unpinned.args).not.toContain("-m");
+    expect(unpinned.expectedRoute).toBeUndefined();
+  });
 describe("uh mission dry-run --runtime codex", () => {
   test("persists prompt and planned runtime session for harness mission", async () => {
     const { missionDir, missionPath } = await writeHarnessMission("dry-run-codex");
@@ -114,7 +154,7 @@ describe("uh mission dry-run --runtime codex", () => {
     expect(result.args).toEqual(expect.arrayContaining([
       "exec",
       "--cd",
-      TEST_ROOT,
+      resolve(TEST_ROOT),
       "--sandbox",
       "workspace-write",
       "--json",
@@ -266,6 +306,42 @@ describe("uh mission run --runtime codex", () => {
       stdout_path: `.harness/missions/run-success/runs/${runId}/runtime.stdout.log`,
       stderr_path: `.harness/missions/run-success/runs/${runId}/runtime.stderr.log`,
     });
+    expect(runtimeResult.diff_path).not.toContain("\\");
+  });
+  test("passes a matching native model attestation", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("matching-route");
+    const runDir = join(missionDir, "runs", "matching-route");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(join(runDir, "runtime-final.txt"), "Done", "utf-8");
+    const result = await runCodex(TEST_ROOT, missionPath, {
+      runId: "matching-route",
+      extraRuntimeConfigOverrides: { model: "gpt-5-codex" },
+      runner: async () => ({
+        stdout: '{"type":"thread.started","thread_id":"abc","model":"gpt-5-codex"}\n{"type":"turn.completed"}\n',
+        stderr: "", exitCode: 0, timedOut: false,
+      }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result).toMatchObject({ status: "passed", model: "gpt-5-codex" });
+  });
+
+  test("stops a native model mismatch with route_mismatch", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("mismatched-route");
+    const runDir = join(missionDir, "runs", "mismatched-route");
+    await mkdir(runDir, { recursive: true });
+    await writeFile(join(runDir, "runtime-final.txt"), "Done", "utf-8");
+    const result = await runCodex(TEST_ROOT, missionPath, {
+      runId: "mismatched-route",
+      extraRuntimeConfigOverrides: { model: "gpt-5-codex" },
+      runner: async () => ({
+        stdout: '{"type":"thread.started","thread_id":"abc","model":"other-model"}\n{"type":"turn.completed"}\n',
+        stderr: "", exitCode: 0, timedOut: false,
+      }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.exitCode).not.toBe(0);
+    expect(result.result).toMatchObject({ status: "failed", model: "other-model" });
+    expect(result.result?.errors).toContain("Runtime reported a route outside the configured assignment");
   });
 
   test("classifies quota failures as blocked", async () => {
diff --git a/tests/command-code.test.ts b/tests/command-code.test.ts
new file mode 100644
index 0000000..3aa4595
--- /dev/null
+++ b/tests/command-code.test.ts
@@ -0,0 +1,512 @@
+import { test, expect, beforeEach, afterEach } from "vitest";
+import { existsSync } from "node:fs";
+import { spawn } from "node:child_process";
+import { mkdtemp, mkdir, writeFile, readFile, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { stringify, parse } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { runCommandCode, planCommandCodeRun, dryRunCommandCode, checkCommandCode, buildCommandCodeProbeArgs, parseCommandCodeVersion, CommandCodeRuntimeConfigSchema } from "../src/adapters/command-code.js";
+import { validateAdapter, type AdapterDocument } from "../src/schema/adapter.js";
+
+async function fixture() {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-command-code-"));
+  await initializeHarness(root);
+  await addAdapter(root, "command-code");
+  const missionPath = path.join(root, ".harness", "missions", "one", "mission.yaml");
+  await mkdir(path.dirname(missionPath), { recursive: true });
+  await writeFile(missionPath, stringify({ schema_version: "uh.mission.v0", id: "one", title: "Synthetic adapter check",
+    objective: "Preserve outputs", workflow_profile: "research-docs",
+    runtime_config_overrides: { model: "qwen/qwen3.8-flash", resume_session: "existing-session", permission_mode: "yolo" } }));
+  return { root, missionPath };
+}
+
+// The guard hook is published into a content-addressed cache from the build
+// output. Point both at a temporary fixture so the suite neither needs a real
+// build nor writes to the per-user cache.
+let snapshotRoot: string;
+let previousDist: string | undefined;
+let previousCache: string | undefined;
+
+beforeEach(async () => {
+  snapshotRoot = await mkdtemp(path.join(tmpdir(), "uh-command-code-snapshot-"));
+  const hook = path.join(snapshotRoot, "dist", "extensions", "tool-guard", "cmdc-hook.js");
+  await mkdir(path.dirname(hook), { recursive: true });
+  await writeFile(hook, "export default function () {}\n");
+  previousDist = process.env.UH_HARNESS_DIST;
+  previousCache = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  process.env.UH_HARNESS_DIST = path.join(snapshotRoot, "dist");
+  process.env.UH_RUNTIME_SNAPSHOT_CACHE = path.join(snapshotRoot, "cache");
+});
+
+afterEach(async () => {
+  if (previousDist === undefined) delete process.env.UH_HARNESS_DIST; else process.env.UH_HARNESS_DIST = previousDist;
+  if (previousCache === undefined) delete process.env.UH_RUNTIME_SNAPSHOT_CACHE; else process.env.UH_RUNTIME_SNAPSHOT_CACHE = previousCache;
+  await rm(snapshotRoot, { recursive: true, force: true });
+});
+
+test("refuses a mission without an explicit model assignment", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    await expect(planCommandCodeRun(root, missionPath, { extraRuntimeConfigOverrides: { model: "" } })).rejects.toThrow();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+test("guard policy selects yolo and records guard permission mode", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    delete (mission.runtime_config_overrides as Record<string, unknown>).permission_mode;
+    mission.guard = { write_roots: ["out"] };
+    await writeFile(missionPath, stringify(mission));
+    const plan = await planCommandCodeRun(root, missionPath);
+    expect(plan.permission_mode).toBe("guard");
+    expect(plan.args).toContain("--yolo");
+    let seenMode: string | undefined;
+    await runCommandCode(root, missionPath, {
+      runId: "guard-mode",
+      runner: async input => { seenMode = input.permissionMode; return { stdout: "", stderr: "", exitCode: 1, timedOut: false }; },
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(seenMode).toBe("guard");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("explicit yolo permission mode adds yolo without a guard", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const plan = await planCommandCodeRun(root, missionPath);
+    expect(plan.permission_mode).toBe("yolo");
+    expect(plan.args).toContain("--yolo");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("missing guard and permission mode refuses before process spawn", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    delete (mission.runtime_config_overrides as Record<string, unknown>).permission_mode;
+    await writeFile(missionPath, stringify(mission));
+    let spawned = false;
+    await expect(planCommandCodeRun(root, missionPath)).rejects.toThrow(/guard policy.*permission_mode.*yolo.*prompt/i);
+    await expect(runCommandCode(root, missionPath, {
+      runner: async () => { spawned = true; return { stdout: "", stderr: "", exitCode: 0, timedOut: false }; },
+    })).rejects.toThrow(/guard policy.*permission_mode.*yolo.*prompt/i);
+    expect(spawned).toBe(false);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+test("custom absolute cli command still refuses without permission mode and launches with yolo", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const adapterPath = path.join(root, ".harness", "adapters", "command-code.yaml");
+    const adapter = parse(await readFile(adapterPath, "utf8")) as Record<string, unknown>;
+    (adapter.config as Record<string, unknown>).cli_command = process.execPath;
+    await writeFile(adapterPath, stringify(adapter));
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    const runtimeConfig = mission.runtime_config_overrides as Record<string, unknown>;
+    delete runtimeConfig.permission_mode;
+    await writeFile(missionPath, stringify(mission));
+    await expect(planCommandCodeRun(root, missionPath)).rejects.toThrow(/guard policy.*permission_mode.*yolo.*prompt/i);
+    let launched = false;
+    runtimeConfig.permission_mode = "yolo";
+    await writeFile(missionPath, stringify(mission));
+    await runCommandCode(root, missionPath, {
+      runId: "custom-command-yolo",
+      runner: async input => { launched = true; expect(input.command).toBe(process.execPath); return { stdout: "", stderr: "", exitCode: 1, timedOut: false }; },
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(launched).toBe(true);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+
+test("native finalText and cumulative usage become canonical facts without double counting", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const stdout = [
+      { type: "event", event: { type: "model_request_start", model: "qwen/qwen3.8-flash" } },
+      { type: "event", event: { type: "turn_end", usage: { inputTokens: 10, outputTokens: 2 } } },
+      { type: "event", event: { type: "run_end", result: { finalText: "Complete", stopReason: "end_turn", usage: { inputTokens: 10, outputTokens: 2 } } } },
+      { type: "result", subtype: "success", finalText: "Complete", stopReason: "end_turn", usage: { inputTokens: 10, outputTokens: 2 } },
+    ].map(value => JSON.stringify(value)).join("\n");
+    const result = await runCommandCode(root, missionPath, { runId: "observed-run",
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }), collectDiff: async () => ({ patch: "" }) });
+    expect(result.result).toMatchObject({ status: "passed", provider: "qwen", model: "qwen3.8-flash", usage: { input_tokens: 10, output_tokens: 2, source: "runtime", provider: "qwen", model: "qwen3.8-flash" } });
+    expect(result.result.cost_usd).toBeUndefined();
+    const saved = parse(await readFile(path.join(path.dirname(missionPath), "runs", "observed-run", "runtime-result.yaml"), "utf8"));
+    expect(saved).toEqual(result.result);
+    const mismatched = await runCommandCode(root, missionPath, { runId: "wrong-route",
+      extraRuntimeConfigOverrides: { model: "different/assignment" },
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }), collectDiff: async () => ({ patch: "" }) });
+    expect(mismatched.exitCode).not.toBe(0);
+    expect(mismatched.result).toMatchObject({ status: "failed", provider: "qwen", model: "qwen3.8-flash", usage: { input_tokens: 10, output_tokens: 2 } });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+test("attests provider/model and aggregates Command Code turn usage", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const stdout = [
+      { type: "event", event: { type: "model_request_start", model: "z-ai/glm-5.3-flash" } },
+      { type: "event", event: { type: "turn_end", usage: { inputTokens: 11, outputTokens: 3, cacheReadTokens: 5, cacheWriteTokens: 1, totalTokens: 14 } } },
+      { type: "event", event: { type: "turn_end", usage: { inputTokens: 7, outputTokens: 2, cacheReadTokens: 4, cacheWriteTokens: 0, totalTokens: 9 } } },
+      { type: "event", event: { type: "run_end", result: { finalText: "Complete", stopReason: "end_turn" } } },
+    ].map(value => JSON.stringify(value)).join("\n");
+    const result = await runCommandCode(root, missionPath, {
+      runId: "attested-usage",
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result).toMatchObject({
+      provider: "z-ai",
+      model: "glm-5.3-flash",
+      usage: { input_tokens: 18, output_tokens: 5, cache_read_tokens: 9, cache_write_tokens: 1, total_tokens: 23, provider: "z-ai", model: "glm-5.3-flash" },
+    });
+    expect(result.result.cost_usd).toBeUndefined();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("max-turns native failure cannot become success from exit zero and completed-looking text", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const result = await runCommandCode(root, missionPath, { runner: async () => ({
+      stdout: JSON.stringify({ type: "event", event: { type: "run_end", result: { finalText: "DONE", stopReason: "max_turns" } } }),
+      stderr: "", exitCode: 0, timedOut: false }), collectDiff: async () => ({ patch: "" }) });
+    expect(result.result.status).toBe("failed");
+    expect(result.exitCode).not.toBe(0);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("limits.max_turns plans --max-turns and an explicit top-level max_turns wins", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    const overrides = mission.runtime_config_overrides as Record<string, unknown>;
+    overrides.limits = { max_turns: 200 };
+    await writeFile(missionPath, stringify(mission));
+    const planned = await planCommandCodeRun(root, missionPath);
+    expect(planned.args.indexOf("--max-turns")).toBeGreaterThan(-1);
+    expect(planned.args[planned.args.indexOf("--max-turns") + 1]).toBe("200");
+    expect(planned.native_default_turn_cap).toBeUndefined();
+
+    overrides.max_turns = 150;
+    await writeFile(missionPath, stringify(mission));
+    const explicit = await planCommandCodeRun(root, missionPath);
+    expect(explicit.args[explicit.args.indexOf("--max-turns") + 1]).toBe("150");
+    expect(explicit.native_default_turn_cap).toBeUndefined();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a deadline grace plan marks the attempt as grace for supervision", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    const overrides = mission.runtime_config_overrides as Record<string, unknown>;
+    overrides.recovery_grace = true;
+    overrides.recovery = { max_resumes: 0, notes: "Preserve the findings already gathered.", on_deadline: { grace_turns: 2, grace_timeout_ms: 300000 } };
+    await writeFile(missionPath, stringify(mission));
+    const runOnce = async (runId: string): Promise<Record<string, unknown> | undefined> => {
+      let seen: Record<string, unknown> | undefined;
+      await runCommandCode(root, missionPath, { runId,
+        runner: async input => { seen = input.onDeadline as Record<string, unknown> | undefined; return { stdout: "", stderr: "", exitCode: 1, timedOut: false }; },
+        collectDiff: async () => ({ patch: "" }) });
+      return seen;
+    };
+    expect(await runOnce("grace-marker")).toMatchObject({ grace: true, grace_turns: 2, grace_timeout_ms: 300000 });
+
+    delete overrides.recovery_grace;
+    await writeFile(missionPath, stringify(mission));
+    expect(await runOnce("plain-marker")).not.toHaveProperty("grace");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a grace attempt whose expected native cap ends it settles by its deliverable", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    const overrides = mission.runtime_config_overrides as Record<string, unknown>;
+    overrides.model = "deepseek/deepseek-v4.1-flash";
+    overrides.recovery_grace = true;
+    overrides.recovery = { max_resumes: 0, notes: "Preserve the findings already gathered.", on_deadline: { grace_turns: 2, grace_timeout_ms: 300000 } };
+    await writeFile(missionPath, stringify(mission));
+    const stdout = await readFile(fileURLToPath(new URL("./fixtures/runtime-events/command-code-native-turn-cap.ndjson", import.meta.url)), "utf8");
+    const result = await runCommandCode(root, missionPath, { runId: "grace-cap",
+      runner: async () => ({ stdout, stderr: "", exitCode: 8, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }) });
+    expect(result.result).toMatchObject({
+      status: "passed",
+      completion: "incomplete",
+      exit_code: 8,
+      exit_code_ignored_reason: "runtime exited non-zero after completed native terminal event",
+    });
+    expect(result.result.errors).toEqual([]);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a native cap supervision stopped cannot settle passed on a clean terminal and exit zero", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const stdout = [
+      { type: "event", event: { type: "model_request_start", model: "qwen/qwen3.8-flash" } },
+      { type: "result", subtype: "max_turns", num_turns: 2, finalText: "completed just before the cap" },
+    ].map(value => JSON.stringify(value)).join("\n");
+    const result = await runCommandCode(root, missionPath, { runId: "supervision-cap",
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false, nativeTerminal: true,
+        supervisionStopCode: "turn_limit", nativeTerminalFailure: "Runtime reported failure (max_turns)" }),
+      collectDiff: async () => ({ patch: "" }) });
+    expect(result.result.status).toBe("failed");
+    expect(result.exitCode).not.toBe(0);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a mission without a turn cap passes no flag and records the native default in the plan", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const plan = await planCommandCodeRun(root, missionPath);
+    expect(plan.args).not.toContain("--max-turns");
+    expect(plan.native_default_turn_cap).toBe(100);
+    const planned = await dryRunCommandCode(root, missionPath);
+    expect(planned.native_default_turn_cap).toBe(100);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+test("guard policy artifacts and Command Code hook preserve existing settings", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    mission.guard = { write_roots: ["out"] };
+    await writeFile(missionPath, stringify(mission));
+    const settingsPath = path.join(root, ".commandcode", "settings.json");
+    await mkdir(path.dirname(settingsPath), { recursive: true });
+    await writeFile(settingsPath, JSON.stringify({ permissions: { defaultMode: "default" }, custom: { keep: true } }));
+    let seenEnv: NodeJS.ProcessEnv | undefined;
+    const stdout = JSON.stringify({ type: "event", event: { type: "run_end", result: { finalText: "Complete", stopReason: "end_turn" } } });
+    await runCommandCode(root, missionPath, {
+      runId: "guarded-run",
+      runner: async input => { seenEnv = input.env; return { stdout, stderr: "", exitCode: 0, timedOut: false }; },
+      collectDiff: async () => ({ patch: "" }),
+    });
+    const runDir = path.join(path.dirname(missionPath), "runs", "guarded-run");
+    expect(parse(await readFile(path.join(runDir, "tool-guard.json"), "utf8"))).toMatchObject({ schema_version: "uh.tool-guard.v0", write_roots: ["out"] });
+    expect(seenEnv?.UH_TOOL_GUARD_POLICY).toContain("tool-guard.json");
+    expect(parse(await readFile(settingsPath, "utf8"))).toMatchObject({ permissions: { defaultMode: "default" }, custom: { keep: true }, hooks: { PreToolUse: [{ hooks: [{ type: "command" }] }] } });
+    const persistedSettings = parse(await readFile(settingsPath, "utf8")) as { hooks: { PreToolUse: Array<{ hooks: Array<{ command: string }> }> } };
+    const hookCommand = persistedSettings.hooks.PreToolUse.at(-1)?.hooks[0]?.command ?? "";
+    const quotedHookPath = hookCommand.match(/"([^"]*tool-guard[\\/]+cmdc-hook\.js)"/i)?.[1];
+    expect(quotedHookPath).toBeDefined();
+    expect(existsSync(quotedHookPath!)).toBe(true);
+    expect(quotedHookPath!.startsWith(process.env.UH_RUNTIME_SNAPSHOT_CACHE!)).toBe(true);
+    expect(await readFile(path.join(root, ".commandcode", ".gitignore"), "utf8")).toBe("*\n");
+    await runCommandCode(root, missionPath, {
+      runId: "guarded-run-two",
+      runner: async input => { seenEnv = input.env; return { stdout, stderr: "", exitCode: 0, timedOut: false }; },
+      collectDiff: async () => ({ patch: "" }),
+    });
+    const settingsAfterSecond = parse(await readFile(settingsPath, "utf8")) as { hooks: { PreToolUse: Array<{ hooks: Array<{ command: string }> }> } };
+    expect(settingsAfterSecond.hooks.PreToolUse.filter(entry => entry.hooks.some(hook => hook.command.includes("tool-guard")))).toHaveLength(1);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("buildCommandCodeProbeArgs passes --no-auto-update together with --version", () => {
+  const defaultArgs = buildCommandCodeProbeArgs();
+  expect(defaultArgs).toContain("--no-auto-update");
+  expect(defaultArgs).toContain("--version");
+
+  const customArgs = buildCommandCodeProbeArgs(["--profile", "custom"]);
+  expect(customArgs).toEqual(["--profile", "custom", "--version", "--no-auto-update"]);
+});
+
+test("parseCommandCodeVersion parses valid versions and ignores update banner", () => {
+  // Output: "1.60.0"
+  expect(parseCommandCodeVersion("1.60.0")).toBe("1.60.0");
+  expect(parseCommandCodeVersion("  1.60.0 \n")).toBe("1.60.0");
+
+  // ANSI-colored "Updated 1.54.1 -> 1.60.0" line followed by "1.60.0"
+  const bannerAndVersion = "\u001b[32mUpdated 1.54.1 -> 1.60.0\u001b[0m\n1.60.0";
+  expect(parseCommandCodeVersion(bannerAndVersion)).toBe("1.60.0");
+
+  // Output with no version returns null
+  const onlyBanner = "\u001b[32mUpdated 1.54.1 -> 1.60.0\u001b[0m";
+  expect(parseCommandCodeVersion(onlyBanner)).toBeNull();
+  expect(parseCommandCodeVersion("")).toBeNull();
+  expect(parseCommandCodeVersion("some unparseable output")).toBeNull();
+});
+
+test("checkCommandCode probe asserts --no-auto-update in args and parses versions correctly", async () => {
+  const manifest: AdapterDocument = validateAdapter({
+    schema_version: "uh.adapter.v0",
+    id: "command-code",
+    name: "Command Code",
+    description: "Native Command Code execution",
+    runtime: "command-code",
+    capabilities: ["cli-execution"],
+    config: {
+      cli_command: "cmdc",
+      runtime_config: {
+        cli_args: ["--extra-flag"],
+      },
+    },
+  });
+
+  let capturedCommand = "";
+  let capturedArgs: string[] = [];
+
+  // 1. Output: "1.60.0"
+  const result1 = await checkCommandCode(manifest, undefined, async (cmd, args) => {
+    capturedCommand = cmd;
+    capturedArgs = args;
+    return { stdout: "1.60.0\n", stderr: "" };
+  });
+  expect(capturedArgs).toContain("--no-auto-update");
+  expect(capturedArgs).toContain("--version");
+  expect(capturedArgs.slice(-3)).toEqual(["--extra-flag", "--version", "--no-auto-update"]);
+  expect(result1).toEqual({
+    runtime: "command-code",
+    found: true,
+    version: "1.60.0",
+    errors: [],
+  });
+
+  // 2. ANSI-colored "Updated 1.54.1 -> 1.60.0" line followed by "1.60.0"
+  const result2 = await checkCommandCode(manifest, undefined, async () => {
+    return { stdout: "\u001b[32mUpdated 1.54.1 -> 1.60.0\u001b[0m\n1.60.0\n", stderr: "" };
+  });
+  expect(result2).toEqual({
+    runtime: "command-code",
+    found: true,
+    version: "1.60.0",
+    errors: [],
+  });
+
+  // 3. Output with no version reports not found rather than a wrong version
+  const result3 = await checkCommandCode(manifest, undefined, async () => {
+    return { stdout: "\u001b[32mUpdated 1.54.1 -> 1.60.0\u001b[0m\n", stderr: "" };
+  });
+  expect(result3.found).toBe(false);
+  expect(result3.version).toBe("");
+  expect(result3.errors.length).toBeGreaterThan(0);
+  expect(result3.errors[0]).toMatch(/version/i);
+
+  // 4. Exec error reports not found
+  const result4 = await checkCommandCode(manifest, undefined, async () => {
+    throw new Error("Command failed");
+  });
+  expect(result4).toEqual({
+    runtime: "command-code",
+    found: false,
+    version: "",
+    errors: ["Configured Command Code CLI could not be executed"],
+  });
+});
+
+test("the role field defaults to worker and accepts only worker or orchestrator", () => {
+  expect(CommandCodeRuntimeConfigSchema.parse({}).role).toBe("worker");
+  expect(CommandCodeRuntimeConfigSchema.parse({ role: "worker" }).role).toBe("worker");
+  expect(CommandCodeRuntimeConfigSchema.parse({ role: "orchestrator" }).role).toBe("orchestrator");
+  expect(() => CommandCodeRuntimeConfigSchema.parse({ role: "commander" })).toThrow();
+});
+
+test("the guard artifact carries controller_commands true only for the orchestrator role", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    const overrides = mission.runtime_config_overrides as Record<string, unknown>;
+    mission.guard = { write_roots: ["out"] };
+
+    overrides.role = "orchestrator";
+    await writeFile(missionPath, stringify(mission));
+    const plan = await planCommandCodeRun(root, missionPath);
+    expect(plan.permission_mode).toBe("guard");
+    expect(plan.guard).toMatchObject({ write_roots: ["out"], controller_commands: true });
+    let orchestratorEnv: NodeJS.ProcessEnv | undefined;
+    await runCommandCode(root, missionPath, {
+      runId: "orchestrator-guard",
+      runner: async input => { orchestratorEnv = input.env; return { stdout: "", stderr: "", exitCode: 1, timedOut: false }; },
+      collectDiff: async () => ({ patch: "" }),
+    });
+    const orchestratorArtifact = JSON.parse(await readFile(path.join(path.dirname(missionPath), "runs", "orchestrator-guard", "tool-guard.json"), "utf8")) as Record<string, unknown>;
+    expect(orchestratorArtifact.controller_commands).toBe(true);
+    expect(orchestratorEnv?.UH_TOOL_GUARD_POLICY).toContain("tool-guard.json");
+
+    overrides.role = "worker";
+    await writeFile(missionPath, stringify(mission));
+    await runCommandCode(root, missionPath, {
+      runId: "worker-guard",
+      runner: async () => ({ stdout: "", stderr: "", exitCode: 1, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    const workerArtifact = JSON.parse(await readFile(path.join(path.dirname(missionPath), "runs", "worker-guard", "tool-guard.json"), "utf8")) as Record<string, unknown>;
+    expect(workerArtifact.controller_commands).toBe(false);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("an orchestrator mission without a guard is refused before spawn", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    (mission.runtime_config_overrides as Record<string, unknown>).role = "orchestrator";
+    await writeFile(missionPath, stringify(mission));
+    await expect(planCommandCodeRun(root, missionPath)).rejects.toThrow(/orchestrator.*guard/i);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("the orchestrator prompt ends with a fixed delegation paragraph under 80 words", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const mission = parse(await readFile(missionPath, "utf8")) as Record<string, unknown>;
+    mission.guard = { write_roots: ["out"] };
+    (mission.runtime_config_overrides as Record<string, unknown>).role = "orchestrator";
+    await writeFile(missionPath, stringify(mission));
+    const plan = await planCommandCodeRun(root, missionPath);
+    const trimmed = plan.prompt.trimEnd();
+    const paragraph = trimmed.slice(trimmed.lastIndexOf("\n\n") + 2).trim();
+    expect(paragraph).toMatch(/delegate only by running harness controller commands/i);
+    expect(paragraph.split(/\s+/).filter(Boolean).length).toBeLessThan(80);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+function runCmdcHook(input: unknown, env: NodeJS.ProcessEnv): Promise<{ code: number | null; stdout: string; stderr: string }> {
+  const hook = fileURLToPath(new URL("../src/extensions/tool-guard/cmdc-hook.ts", import.meta.url));
+  return new Promise((resolve, reject) => {
+    const child = spawn(process.execPath, ["--import", "tsx", hook], { env, stdio: ["pipe", "pipe", "pipe"], windowsHide: true });
+    let stdout = "";
+    let stderr = "";
+    child.stdout.on("data", chunk => { stdout += String(chunk); });
+    child.stderr.on("data", chunk => { stderr += String(chunk); });
+    child.on("error", reject);
+    child.on("close", code => resolve({ code, stdout, stderr }));
+    child.stdin.end(JSON.stringify(input));
+  });
+}
+
+test("the Command Code hook admits controller commands only for the orchestrator", { timeout: 180_000 }, async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-cmdc-hook-"));
+  try {
+    const logPath = path.join(root, "tool-guard.log");
+    const policyEnv = async (controller: boolean): Promise<NodeJS.ProcessEnv> => {
+      const policyPath = path.join(root, `tool-guard-${controller}.json`);
+      await writeFile(policyPath, JSON.stringify({
+        schema_version: "uh.tool-guard.v0", write_roots: ["."], deny_git_mutations: true,
+        deny_package_installs: true, deny_network_clients: true, agent_clients: ["omp", "cmdc"],
+        worker_root: root, protected_paths: [".harness", ".git"], controller_commands: controller,
+      }));
+      return { ...process.env, UH_TOOL_GUARD_POLICY: policyPath, UH_TOOL_GUARD_LOG: logPath };
+    };
+    const decision = async (env: NodeJS.ProcessEnv, toolName: string, toolInput: unknown): Promise<string | undefined> => {
+      const result = await runCmdcHook({ tool_name: toolName, tool_input: toolInput }, env);
+      const output = result.stdout.trim();
+      return output ? (JSON.parse(output) as { hookSpecificOutput?: { permissionDecision?: string } }).hookSpecificOutput?.permissionDecision : undefined;
+    };
+
+    const orchestrator = await policyEnv(true);
+    expect(await decision(orchestrator, "Bash", { command: "uh mission run x.yaml" })).toBeUndefined();
+    expect(await decision(orchestrator, "Bash", { command: "node dist/cli.js mission run-team y" })).toBeUndefined();
+    expect(await decision(orchestrator, "Bash", { command: "omp -p hi" })).toBe("deny");
+    expect(await decision(orchestrator, "task", { tasks: [] })).toBe("deny");
+    expect(await decision(orchestrator, "Bash", { command: "uh mission run x --force" })).toBe("deny");
+    expect(await decision(orchestrator, "Bash", { command: "uh mission run x.yaml && omp -p hi" })).toBe("deny");
+
+    const worker = await policyEnv(false);
+    expect(await decision(worker, "Bash", { command: "uh mission run x.yaml" })).toBe("deny");
+    expect(await decision(worker, "Bash", { command: "node dist/cli.js mission run-team y" })).toBe("deny");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
diff --git a/tests/decision-receipts.test.ts b/tests/decision-receipts.test.ts
new file mode 100644
index 0000000..5487534
--- /dev/null
+++ b/tests/decision-receipts.test.ts
@@ -0,0 +1,144 @@
+import { afterEach, expect, test, vi } from "vitest";
+import { mkdtemp, readFile, readdir, rm } from "node:fs/promises";
+import path from "node:path";
+import { tmpdir } from "node:os";
+import { recordAcceptanceDecision } from "../src/harness/decision-receipts.js";
+import { validateFile } from "../src/harness/validate.js";
+import type { SystemOneState } from "../src/harness/typesafe.js";
+
+/** The provider answers with a versioned id even though the alias `jev-latest` was requested. */
+const VERSIONED_MODEL = "jev-2026-09-01";
+
+const roots: string[] = [];
+afterEach(async () => {
+  vi.unstubAllEnvs();
+  vi.unstubAllGlobals();
+  await Promise.all(roots.splice(0).map(root => rm(root, { recursive: true, force: true })));
+});
+
+type Asked = { model: string; questions: Record<string, { type: string }> };
+
+function answersFor(init: RequestInit | undefined, noul: number | ((name: string) => number)): string {
+  const { questions } = JSON.parse(String(init?.body)) as Asked;
+  const answers: Record<string, unknown> = {};
+  for (const [name, question] of Object.entries(questions)) {
+    answers[name] = { type: question.type, noul: typeof noul === "number" ? noul : noul(name) };
+  }
+  return JSON.stringify({ model: VERSIONED_MODEL, answers, usage: { input_tokens: 11, output_tokens: 7 } });
+}
+
+const CHANGED: SystemOneState = {
+  contract: { private: "PRIVATE_SOURCE_SENTINEL" },
+  criteria: [{ id: "ac-1", description: "docs updated", status: "blocked" }],
+};
+const REMEDIATE = (name: string) => (name.startsWith("criteria[") ? 0.1 : 0.05);
+
+async function evaluate(options: {
+  respond: (init: RequestInit | undefined) => Response | Promise<Response>;
+  state?: SystemOneState;
+  apiKey?: string;
+  apply?: () => string;
+}) {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-decision-"));
+  roots.push(root);
+  vi.stubEnv("TYPESAFE_API_KEY", options.apiKey ?? "synthetic-test-credential");
+  const requests: Asked[] = [];
+  vi.stubGlobal("fetch", vi.fn(async (_input: string | URL | Request, init?: RequestInit) => {
+    requests.push(JSON.parse(String(init?.body)) as Asked);
+    return options.respond(init);
+  }));
+  const apply = vi.fn(options.apply ?? (() => "failed"));
+  const receipt = await recordAcceptanceDecision({
+    missionDir: root, missionId: "sample", consumer: "verification", from: "passed",
+    state: options.state ?? { contract: { private: "PRIVATE_SOURCE_SENTINEL" } },
+    prompt: "PRIVATE_PROMPT_SENTINEL", apply,
+  });
+  const files = await readdir(path.join(root, "decision-receipts"));
+  const file = path.join(root, "decision-receipts", files[0]);
+  const stored = await readFile(file, "utf8");
+  expect((await validateFile(file)).valid).toBe(true);
+  expect(stored).not.toContain("PRIVATE_SOURCE_SENTINEL");
+  expect(stored).not.toContain("PRIVATE_PROMPT_SENTINEL");
+  expect(stored).not.toContain("synthetic-test-credential");
+  expect(JSON.parse(stored)).toEqual(receipt);
+  return { receipt, apply, root, requests };
+}
+
+test("a consumed remediation recommendation records the transition, the versioned model and bounded usage", async () => {
+  const { receipt, apply, requests } = await evaluate({
+    state: CHANGED,
+    respond: init => new Response(answersFor(init, REMEDIATE)),
+  });
+
+  expect(apply).toHaveBeenCalledOnce();
+  expect(requests[0].model).toBe("jev-latest");
+  expect(receipt).toMatchObject({
+    status: "applied", provider_status: "available", applied: true, authorizer: "jev", human_required: true,
+    confidence: 0.8,
+    recommendation: { kind: "acceptance", outcome: "needs-remediation" },
+    provider: { name: "typesafe", model: VERSIONED_MODEL, usage: { input_tokens: 11, output_tokens: 7 } },
+    state_transition: { from: "passed", to: "failed", unlocked: [] },
+  });
+});
+
+test("a change-free recommendation is recorded as advisory", async () => {
+  const { receipt, apply } = await evaluate({
+    state: CHANGED,
+    respond: init => new Response(answersFor(init, name => (name.startsWith("criteria[") ? 0.6 : 0.05))),
+    apply: () => "passed",
+  });
+
+  expect(apply).toHaveBeenCalledOnce();
+  expect(receipt).toMatchObject({
+    status: "advisory", provider_status: "available", applied: false, authorizer: "none",
+    recommendation: { kind: "acceptance", outcome: "needs-attention" },
+    state_transition: { from: "passed", to: "passed", unlocked: [] },
+  });
+  expect(receipt.confidence).toBeCloseTo(0.2, 10);
+});
+
+test("an answer set with no discriminating signal is recorded as uncertain and never applied", async () => {
+  const { receipt, apply } = await evaluate({
+    state: CHANGED,
+    respond: init => new Response(answersFor(init, 0.5)),
+  });
+
+  expect(apply).not.toHaveBeenCalled();
+  expect(receipt).toMatchObject({
+    status: "uncertain", provider_status: "uncertain", applied: false, authorizer: "none",
+    deterministic_fallback: false, confidence: 0,
+    state_transition: { from: "passed", to: "passed", unlocked: [] },
+  });
+});
+
+test("transport failure records unavailability without invoking the decision consumer", async () => {
+  const { receipt, apply } = await evaluate({
+    respond: async () => { throw new Error("PRIVATE_TRANSPORT_SENTINEL"); },
+  });
+
+  expect(apply).not.toHaveBeenCalled();
+  expect(receipt).toMatchObject({
+    status: "unavailable", provider_status: "unavailable", applied: false, deterministic_fallback: true,
+    state_transition: { from: "passed", to: "passed", unlocked: [] },
+  });
+  expect(JSON.stringify(receipt)).not.toContain("PRIVATE_TRANSPORT_SENTINEL");
+});
+
+test("a disabled credential records unavailability without a provider request", async () => {
+  const { receipt, apply } = await evaluate({
+    apiKey: "",
+    respond: init => new Response(answersFor(init, REMEDIATE)),
+  });
+
+  expect(apply).not.toHaveBeenCalled();
+  expect(receipt).toMatchObject({ status: "unavailable", provider_status: "disabled", applied: false, authorizer: "none" });
+});
+
+test("malformed success responses cannot reach the decision consumer", async () => {
+  const { receipt, apply } = await evaluate({
+    respond: async () => new Response(JSON.stringify({ answers: {} }), { status: 200 }),
+  });
+
+  expect(apply).not.toHaveBeenCalled();
+  expect(receipt).toMatchObject({ status: "malformed", provider_status: "malformed", applied: false, authorizer: "none" });
+});
diff --git a/tests/delivery-observatory.test.ts b/tests/delivery-observatory.test.ts
index 7a00d7b..c2d45a9 100644
--- a/tests/delivery-observatory.test.ts
+++ b/tests/delivery-observatory.test.ts
@@ -80,6 +80,28 @@ describe("Delivery Observatory projector", () => {
     ]) expect(serialized).not.toContain(forbidden);
   });
 
+  it("projects conservative native route identifiers and withholds unsafe metadata", async () => {
+    const root = await fixture();
+    const runtimePath = path.join(root, ".harness", "missions", "work-one", "runtime-result.yaml");
+    const base = [
+      "schema_version: uh.runtime-result.v0", "mission_id: work-one", "runtime: openrouter", "status: passed",
+      "started_at: 2026-08-23T12:00:00Z", "finished_at: 2026-08-23T12:00:30Z",
+      `prompt_path: ${root}/prompt.md`, `stdout_path: ${root}/stdout.log`, `stderr_path: ${root}/stderr.log`,
+    ];
+    await writeFile(runtimePath, [...base, "provider: openrouter", "model: openai/gpt-4o-mini"].join("\n"));
+    const safe = await projectDeliveryObservatory(root, { now: "2026-08-23T12:01:00Z" });
+    expect(safe.work_items[0]?.resolved_model).toMatchObject({ state: "known", value: "openai/gpt-4o-mini" });
+    expect(safe.work_items[0]?.provider).toMatchObject({ state: "known", value: "openrouter" });
+
+    await writeFile(runtimePath, [...base, "provider: Bearer sk-live-secret", "model: C:/Users/example/private/prompt.json"].join("\n"));
+    const unsafe = await projectDeliveryObservatory(root, { now: "2026-08-23T12:01:00Z" });
+    expect(unsafe.work_items[0]?.resolved_model).toMatchObject({ state: "unknown", reason_code: "unauthorized" });
+    expect(unsafe.work_items[0]?.provider).toMatchObject({ state: "unknown", reason_code: "unauthorized" });
+    const serialized = JSON.stringify(unsafe);
+    expect(serialized).not.toContain("sk-live-secret");
+    expect(serialized).not.toContain("C:/Users/example/private/prompt.json");
+  });
+
   it("uses honest empty and unknown states when the project has no runs", async () => {
     const root = await fixture();
     await rm(path.join(root, ".harness", "missions", "work-one", "runtime-result.yaml"));
@@ -98,4 +120,46 @@ describe("Delivery Observatory projector", () => {
     expect(snapshot.sources[0]?.rejected_records).toBe(1);
     expect(snapshot.work_items[0]?.operation).toBe("blocked");
   });
+
+  it("distinguishes live, stale, and guardian-settled runs without exposing native private fields", async () => {
+    const root = await fixture();
+    const runs = path.join(root, ".harness", "missions", "work-one", "runs");
+    const directory = path.join(runs, "native");
+    await mkdir(directory);
+    const started = "2026-09-15T00:00:00.000Z";
+    await writeFile(path.join(runs, "index.json"), JSON.stringify({
+      schema_version: "uh.runs-index.v0",
+      runs: [{ run_id: "native", runtime: "command-code", started_at: started, status: "running" }],
+    }));
+    const control = { schema_version: "uh.runtime-control.v0", mission_id: "work-one", run_id: "native",
+      runtime: "command-code", controller_pid: 12345, status: "running", started_at: started,
+      heartbeat_at: started, ready_at: started, turns: 2, denials: 0, inflight_tools: 1,
+      session_id: "PRIVATE_NATIVE_SESSION", stop_reason: "PRIVATE_NATIVE_COMMAND",
+      usage: { source: "runtime", total_tokens: 250 },
+    };
+    await writeFile(path.join(directory, "runtime-control.json"), JSON.stringify(control));
+    const live = await projectDeliveryObservatory(root, { now: started });
+    expect(live.work_items[0].operation).toBe("active");
+    expect(live.work_items[0].tokens).toMatchObject({ state: "known", value: 250, method: "reported" });
+    const usageEvidence = live.work_items[0].tokens.state === "known" ? live.work_items[0].tokens.evidence_refs : [];
+    expect(usageEvidence).toHaveLength(1);
+    expect(live.evidence.find(item => item.evidence_id === usageEvidence[0])?.media_type).toBe("application/json");
+    const stale = await projectDeliveryObservatory(root, { now: "2026-09-15T00:00:15.000Z" });
+    expect(stale.work_items[0].operation).toBe("uncertain");
+    expect(stale.work_items[0].state.freshness).toBe("stale");
+    await writeFile(path.join(directory, "runtime-control.json"), JSON.stringify({
+      ...control, status: "failed", stop_code: "controller_lost", settlement_confirmed: true,
+      heartbeat_at: "2026-09-15T00:00:16.000Z", peak_memory_bytes: 1024,
+    }));
+    const failed = await projectDeliveryObservatory(root, { now: "2026-09-15T00:00:17.000Z" });
+    expect(failed.work_items[0].operation).toBe("failed");
+    expect(failed.work_items[0].cost.state).toBe("unknown");
+    const serialized = JSON.stringify(failed);
+    expect(serialized).not.toContain("PRIVATE_NATIVE_SESSION");
+    expect(serialized).not.toContain("PRIVATE_NATIVE_COMMAND");
+    const aged = await projectDeliveryObservatory(root, { now: "2026-09-17T00:00:00.000Z" });
+    expect(aged.work_items[0].operation).toBe("failed");
+    const lifecycle = aged.events.find(event => event.occurred_at === "2026-09-15T00:00:16.000Z");
+    expect(lifecycle?.state.freshness).toBe("stale");
+  });
 });
diff --git a/tests/diff-capture.test.ts b/tests/diff-capture.test.ts
index 47d133a..4f27dcf 100644
--- a/tests/diff-capture.test.ts
+++ b/tests/diff-capture.test.ts
@@ -1,10 +1,10 @@
 import { describe, expect, test, beforeEach, afterEach } from "vitest";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
+import { mkdir, mkdtemp, rename, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { captureDiffWithUntracked } from "../src/harness/diff-capture.js";
+import { captureDiffWithUntracked, diffCaptureFailureRecord } from "../src/harness/diff-capture.js";
 
 const execFileP = promisify(execFile);
 
@@ -34,13 +34,14 @@ describe("captureDiffWithUntracked", () => {
     expect(result.patch).toContain("+modified content");
   });
 
-  test("captures new untracked files in the diff (the UH-34 case)", async () => {
+  test("captures new untracked files without mutating the index", async () => {
     await writeFile(join(repo, "new-output.txt"), "brand new content\n");
+    const before = (await execFileP("git", ["write-tree"], { cwd: repo })).stdout.trim();
     const result = await captureDiffWithUntracked(repo);
+    const after = (await execFileP("git", ["write-tree"], { cwd: repo })).stdout.trim();
     expect(result.errors).toBeUndefined();
     expect(result.patch).toContain("diff --git a/new-output.txt b/new-output.txt");
-    expect(result.patch).toContain("new file mode");
-    expect(result.patch).toContain("+brand new content");
+    expect(before).toBe(after);
   });
 
   test("captures both modified and untracked in one diff", async () => {
@@ -51,6 +52,55 @@ describe("captureDiffWithUntracked", () => {
     expect(result.patch).toContain("a/tracked.txt b/tracked.txt");
     expect(result.patch).toContain("a/docs/new.md b/docs/new.md");
   });
+  test("captures staged and unstaged text plus tracked and untracked binary hunks", async () => {
+    await writeFile(join(repo, "tracked.bin"), Buffer.from([0, 1, 2, 3]));
+    await execFileP("git", ["add", "tracked.bin"], { cwd: repo });
+    await execFileP("git", ["commit", "-q", "-m", "binary baseline"], { cwd: repo });
+
+    await writeFile(join(repo, "tracked.txt"), "staged then unstaged\n");
+    await execFileP("git", ["add", "tracked.txt"], { cwd: repo });
+    await writeFile(join(repo, "tracked.txt"), "staged and unstaged final\n");
+    await writeFile(join(repo, "tracked.bin"), Buffer.from([0, 9, 8, 7]));
+    await execFileP("git", ["add", "tracked.bin"], { cwd: repo });
+    await writeFile(join(repo, "new.txt"), "new text\n");
+    await writeFile(join(repo, "new.bin"), Buffer.from([9, 8, 7, 0]));
+
+    const before = (await execFileP("git", ["write-tree"], { cwd: repo })).stdout.trim();
+    const result = await captureDiffWithUntracked(repo);
+    const after = (await execFileP("git", ["write-tree"], { cwd: repo })).stdout.trim();
+    expect(result.errors).toBeUndefined();
+    expect(result.patch).toContain("+staged and unstaged final");
+    expect(result.patch).toContain("tracked.bin");
+    expect(result.patch).toContain("new.txt");
+    expect(result.patch).toContain("new.bin");
+    expect(result.patch).toContain("GIT binary patch");
+    expect(after).toBe(before);
+
+    const cleanBase = await mkdtemp(join(tmpdir(), "uh-diff-apply-"));
+    try {
+      await execFileP("git", ["clone", "-q", repo, cleanBase]);
+      const patchPath = join(cleanBase, "captured.patch");
+      await writeFile(patchPath, result.patch);
+      await execFileP("git", ["apply", "--check", "captured.patch"], { cwd: cleanBase });
+    } finally {
+      await rm(cleanBase, { recursive: true, force: true });
+    }
+  });
+
+  test("retains harness configuration while excluding generated bookkeeping", async () => {
+    await mkdir(join(repo, ".harness", "adapters"), { recursive: true });
+    await writeFile(join(repo, ".harness", "adapters", "config.yaml"), "model: test\n");
+    await execFileP("git", ["add", ".harness/adapters/config.yaml"], { cwd: repo });
+    await execFileP("git", ["commit", "-q", "-m", "harness config"], { cwd: repo });
+    await writeFile(join(repo, ".harness", "adapters", "config.yaml"), "model: changed\n");
+    await mkdir(join(repo, ".harness", "missions", "m1", "runs", "old"), { recursive: true });
+    await writeFile(join(repo, ".harness", "missions", "m1", "runs", "old", "events.ndjson"), "{\"event\":\"private\"}\n");
+    await writeFile(join(repo, ".harness", "missions", "m1", "latest.json"), "{\"run_id\":\"old\"}\n");
+    const result = await captureDiffWithUntracked(repo);
+    expect(result.patch).toContain(".harness/adapters/config.yaml");
+    expect(result.patch).not.toContain("events.ndjson");
+    expect(result.patch).not.toContain("latest.json");
+  });
 
   test("respects .gitignore — ignored files do not appear in the diff", async () => {
     await writeFile(join(repo, ".gitignore"), "secret.txt\n");
@@ -75,9 +125,62 @@ describe("captureDiffWithUntracked", () => {
     }
   });
 
+  test("reports an error for a repository without HEAD instead of dropping staged content", async () => {
+    const noHead = await mkdtemp(join(tmpdir(), "uh-no-head-"));
+    try {
+      await execFileP("git", ["init", "-q"], { cwd: noHead });
+      await writeFile(join(noHead, "staged.txt"), "staged\n");
+      await execFileP("git", ["add", "staged.txt"], { cwd: noHead });
+      const result = await captureDiffWithUntracked(noHead);
+      expect(result.patch).toBe("");
+      expect(result.errors?.[0]).toContain("Diff capture failed");
+    } finally {
+      await rm(noHead, { recursive: true, force: true });
+    }
+  });
+
   test("returns an empty patch (no errors) for a clean working tree", async () => {
     const result = await captureDiffWithUntracked(repo);
     expect(result.errors).toBeUndefined();
     expect(result.patch).toBe("");
   });
+
+  test("retries a transient git failure once and still captures the diff", async () => {
+    // The first `git rev-parse --verify HEAD` fails while the checkout's git
+    // directory is briefly missing (the stand-in for a transient spawn
+    // failure during a host memory shortage); the single 500 ms retry lands
+    // after the directory is restored and the capture succeeds.
+    const transient = await mkdtemp(join(tmpdir(), "uh-diff-retry-"));
+    const gitDir = join(transient, ".git");
+    const hiddenDir = join(transient, ".git-transient-away");
+    await execFileP("git", ["init", "-q", "-b", "main"], { cwd: transient });
+    await execFileP("git", ["config", "user.email", "test@test"], { cwd: transient });
+    await execFileP("git", ["config", "user.name", "test"], { cwd: transient });
+    await writeFile(join(transient, "tracked.txt"), "original\n");
+    await execFileP("git", ["add", "tracked.txt"], { cwd: transient });
+    await execFileP("git", ["commit", "-q", "-m", "init"], { cwd: transient });
+    await writeFile(join(transient, "late.txt"), "written after the failure\n");
+    try {
+      await execFileP("git", ["-C", transient, "status", "--porcelain"], { cwd: transient });
+      await rename(gitDir, hiddenDir);
+      const restore = setTimeout(() => {
+        rename(hiddenDir, gitDir).catch(() => {});
+      }, 200);
+      try {
+        const result = await captureDiffWithUntracked(transient);
+        expect(result.errors).toBeUndefined();
+        expect(result.patch).toContain("diff --git a/late.txt b/late.txt");
+      } finally {
+        clearTimeout(restore);
+      }
+    } finally {
+      await rm(hiddenDir, { recursive: true, force: true });
+      await rm(transient, { recursive: true, force: true });
+    }
+  });
+
+  test("formats the post-settlement diff capture record", () => {
+    expect(diffCaptureFailureRecord(["Diff capture failed: Command failed: git rev-parse --verify HEAD"]))
+      .toBe(`diff_capture: ${JSON.stringify({ status: "failed", error: "Diff capture failed: Command failed: git rev-parse --verify HEAD" })}`);
+  });
 });
diff --git a/tests/dispatch-context.test.ts b/tests/dispatch-context.test.ts
index 375fe36..ce900d1 100644
--- a/tests/dispatch-context.test.ts
+++ b/tests/dispatch-context.test.ts
@@ -41,6 +41,31 @@ const FIXTURE_WORKFLOW: WorkflowDocument = validateWorkflow({
 });
 
 const FINAL_INSTRUCTION = "::FINAL::";
+const STRUCTURED_MISSION: MissionDocument = validateMission({
+  schema_version: "uh.mission.v0",
+  id: "m-structured",
+  title: "Structured mission",
+  workflow_profile: "research-docs",
+  objective: "Preserve structured mission fields.",
+  constraints: [
+    "Keep this line exactly.\nKeep this literal continuation.",
+    "Second constraint arrives after the first.",
+  ],
+  acceptance_criteria: [
+    {
+      id: "ac-build",
+      description: "Build output exists.\nThe description keeps its second line.",
+      check_command: "bun run build --literal='a b'",
+      severity: "block",
+    },
+    {
+      id: "ac-review",
+      description: "A reviewer confirms the result.",
+      severity: "warn",
+    },
+  ],
+});
+
 
 describe("UH-80 dispatch context contract", () => {
   test("buildDispatchContext copies mission fields without mutating them", () => {
@@ -100,11 +125,96 @@ describe("UH-80 dispatch context contract", () => {
       - bun run typecheck
       - bun run test
 
+      ## Constraints
+      - none, add nothing
+
+      ## Acceptance Criteria
+      - none, add nothing
+
       Execute this mission and produce the expected artifacts.
       ::FINAL::"
     `);
   });
 
+  test("transmits constraints and acceptance criteria without mutating the mission", () => {
+    const ctx = buildDispatchContext(STRUCTURED_MISSION, undefined, {
+      finalMessageInstruction: FINAL_INSTRUCTION,
+    });
+
+    expect(ctx.constraints).toEqual([
+      "Keep this line exactly.\nKeep this literal continuation.",
+      "Second constraint arrives after the first.",
+    ]);
+    expect(ctx.acceptanceCriteria).toEqual([
+      {
+        id: "ac-build",
+        description: "Build output exists.\nThe description keeps its second line.",
+        check_command: "bun run build --literal='a b'",
+        severity: "block",
+      },
+      {
+        id: "ac-review",
+        description: "A reviewer confirms the result.",
+        severity: "warn",
+      },
+    ]);
+
+    ctx.constraints[0] = "changed";
+    ctx.acceptanceCriteria[0].description = "changed";
+    expect(STRUCTURED_MISSION.constraints[0]).toBe("Keep this line exactly.\nKeep this literal continuation.");
+    expect(STRUCTURED_MISSION.acceptance_criteria[0].description).toBe(
+      "Build output exists.\nThe description keeps its second line.",
+    );
+  });
+
+  test("renders structured fields in declared order and preserves optional commands", () => {
+    const prompt = renderPrompt(buildDispatchContext(STRUCTURED_MISSION, undefined, {
+      finalMessageInstruction: FINAL_INSTRUCTION,
+    }));
+
+    expect(prompt).toContain(
+      "## Constraints\n" +
+      "- Keep this line exactly.\n" +
+      "Keep this literal continuation.\n" +
+      "- Second constraint arrives after the first.\n\n",
+    );
+    expect(prompt).toContain(
+      "## Acceptance Criteria\n" +
+      "- ac-build [block] Build output exists.\n" +
+      "The description keeps its second line.\n" +
+      "  - check_command: bun run build --literal='a b'\n" +
+      "- ac-review [warn] A reviewer confirms the result.\n\n",
+    );
+    const reviewStart = prompt.indexOf("- ac-review [warn]");
+    expect(prompt.slice(reviewStart).split("\n\n", 1)[0]).toBe(
+      "- ac-review [warn] A reviewer confirms the result.",
+    );
+    expect(prompt.indexOf("## Constraints")).toBeLessThan(prompt.indexOf("## Acceptance Criteria"));
+    expect(prompt.indexOf("## Acceptance Criteria")).toBeLessThan(prompt.indexOf("Execute this mission"));
+  });
+
+  test("renders normalized legacy completion criteria as warn acceptance criteria", () => {
+    const legacy = validateMission({
+      schema_version: "uh.mission.v0",
+      id: "m-legacy",
+      title: "Legacy",
+      workflow_profile: "research-docs",
+      objective: "Keep old missions working.",
+      completion_criteria: ["First legacy criterion", "Second legacy criterion\nwith a literal line."],
+    });
+    const ctx = buildDispatchContext(legacy, undefined, { finalMessageInstruction: FINAL_INSTRUCTION });
+
+    expect(ctx.acceptanceCriteria).toEqual([
+      { id: "ac-1", description: "First legacy criterion", severity: "warn" },
+      { id: "ac-2", description: "Second legacy criterion\nwith a literal line.", severity: "warn" },
+    ]);
+    expect(renderPrompt(ctx)).toContain(
+      "- ac-1 [warn] First legacy criterion\n" +
+      "- ac-2 [warn] Second legacy criterion\n" +
+      "with a literal line.\n",
+    );
+  });
+
   test("renderPrompt appends a memory block when present (OMP-style enrichment)", () => {
     const ctx = buildDispatchContext(FIXTURE_MISSION, FIXTURE_WORKFLOW, {
       finalMessageInstruction: FINAL_INSTRUCTION,
@@ -141,7 +251,7 @@ describe("UH-80 dispatch context contract", () => {
     expect(enriched.slice(base.length)).toBe("\n\n[Persistent memory]\nx");
   });
 
-  test("renderPrompt omits sections when their lists are empty", () => {
+  test("renderPrompt renders empty mission lists explicitly as none, add nothing", () => {
     const sparse = validateMission({
       schema_version: "uh.mission.v0",
       id: "m-sparse",
@@ -151,11 +261,28 @@ describe("UH-80 dispatch context contract", () => {
     });
     const ctx = buildDispatchContext(sparse, undefined, { finalMessageInstruction: "::F::" });
     const prompt = renderPrompt(ctx);
+    expect(ctx.constraints).toEqual([]);
+    expect(ctx.acceptanceCriteria).toEqual([]);
     expect(prompt).toMatchInlineSnapshot(`
       "# Mission: Sparse
 
       Just the basics.
 
+      ## Read First
+      - none, add nothing
+
+      ## Expected Artifacts
+      - none, add nothing
+
+      ## Verification Checks
+      - none, add nothing
+
+      ## Constraints
+      - none, add nothing
+
+      ## Acceptance Criteria
+      - none, add nothing
+
       Execute this mission and produce the expected artifacts.
       ::F::"
     `);
diff --git a/tests/dry-run-overrides.test.ts b/tests/dry-run-overrides.test.ts
new file mode 100644
index 0000000..1900ec7
--- /dev/null
+++ b/tests/dry-run-overrides.test.ts
@@ -0,0 +1,168 @@
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { dryRunCommandCode } from "../src/adapters/command-code.js";
+import { dryRunOhMyPi } from "../src/adapters/oh-my-pi.js";
+import { dryRunCodex } from "../src/adapters/codex.js";
+
+const execFileP = promisify(execFile);
+
+async function runUh(args: string[]) {
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], {
+    cwd: process.cwd(),
+    timeout: 30_000,
+    env: {
+      ...process.env,
+      UH_TELEMETRY: "",
+      UH_POSTHOG_API_KEY: "",
+    },
+  });
+}
+
+let ROOTS: string[] = [];
+
+async function makeRoot(runtime: string): Promise<string> {
+  const root = await mkdtemp(join(tmpdir(), `uh-dry-run-${runtime}-`));
+  ROOTS.push(root);
+  await initializeHarness(root);
+  await addAdapter(root, runtime);
+  return root;
+}
+
+async function writeMission(root: string, id: string, overrides: Record<string, unknown> = {}): Promise<string> {
+  const missionDir = join(root, ".harness", "missions", id);
+  await mkdir(missionDir, { recursive: true });
+  const missionPath = join(missionDir, "mission.yaml");
+  await writeFile(missionPath, stringify({
+    schema_version: "uh.mission.v0",
+    id,
+    title: `Mission ${id}`,
+    workflow_profile: "research-docs",
+    objective: "Dry-run must plan with the same overrides as a real run.",
+    ...overrides,
+  }), "utf-8");
+  return missionPath;
+}
+
+async function writeTemplate(root: string, id: string, fields: Record<string, unknown> = {}): Promise<void> {
+  const templatesDir = join(root, ".harness", "templates");
+  await mkdir(templatesDir, { recursive: true });
+  await writeFile(join(templatesDir, `${id}.yaml`), stringify({
+    schema_version: "uh.session-template.v0",
+    id,
+    title: `Template ${id}`,
+    tier: "balanced",
+    containment: "standard",
+    adapter: "oh-my-pi",
+    ...fields,
+  }), "utf-8");
+}
+
+beforeEach(() => {
+  ROOTS = [];
+});
+
+afterEach(async () => {
+  for (const root of ROOTS) {
+    await rm(root, { recursive: true, force: true });
+  }
+  ROOTS = [];
+});
+
+describe("adapter dry-run honors extraRuntimeConfigOverrides", () => {
+  test("command-code plans a model supplied only by the override and refuses without one", async () => {
+    const root = await makeRoot("command-code");
+    const missionPath = await writeMission(root, "cc-model", {
+      runtime_config_overrides: { permission_mode: "yolo" },
+    });
+
+    const planned = await dryRunCommandCode(root, missionPath, {
+      extraRuntimeConfigOverrides: { model: "override-model" },
+    });
+    expect(planned.errors).toEqual([]);
+    expect(planned.args).toContain("override-model");
+    expect(planned.args).toContain("-m");
+
+    const withoutOverride = await dryRunCommandCode(root, missionPath).catch((e: Error) => e);
+    expect(withoutOverride).toBeInstanceOf(Error);
+    expect((withoutOverride as Error).message).toMatch(/explicit runtime_config model/);
+  });
+
+  test("oh-my-pi plans --model from the override and omits it without one", async () => {
+    const root = await makeRoot("oh-my-pi");
+    const missionPath = await writeMission(root, "omp-model");
+
+    const planned = await dryRunOhMyPi(root, missionPath, {
+      extraRuntimeConfigOverrides: { model: "override-model" },
+    });
+    expect(planned.errors).toEqual([]);
+    expect(planned.args).toContain("--model");
+    expect(planned.args).toContain("override-model");
+
+    const withoutOverride = await dryRunOhMyPi(root, missionPath);
+    expect(withoutOverride.args).not.toContain("--model");
+    expect(withoutOverride.args).not.toContain("override-model");
+  });
+
+  test("codex plans -m from the override and omits it without one", async () => {
+    const root = await makeRoot("codex");
+    const missionPath = await writeMission(root, "codex-model");
+
+    const planned = await dryRunCodex(root, missionPath, {
+      extraRuntimeConfigOverrides: { model: "override-model" },
+    });
+    expect(planned.errors).toEqual([]);
+    expect(planned.args).toContain("-m");
+    expect(planned.args).toContain("override-model");
+
+    const withoutOverride = await dryRunCodex(root, missionPath);
+    expect(withoutOverride.args).not.toContain("-m");
+    expect(withoutOverride.args).not.toContain("override-model");
+  });
+});
+
+describe("uh mission dry-run prints the command a real run would execute", () => {
+  test("a mission without a model prints the template model in the planned command", async () => {
+    const root = await makeRoot("oh-my-pi");
+    await writeTemplate(root, "balanced", {
+      runtime_config_overrides: { model: "template-model" },
+    });
+    const missionPath = await writeMission(root, "cli-template-model");
+
+    const { stdout, stderr } = await runUh([
+      "mission", "dry-run", missionPath,
+      "--template", "balanced",
+      "--runtime", "oh-my-pi",
+      "--root", root,
+    ]);
+
+    expect(stderr).toBe("");
+    expect(stdout).toContain("Template: balanced");
+    expect(stdout).toContain("Command: omp");
+    expect(stdout).toContain("--model template-model");
+  });
+
+  test("an explicit --runtime-config-overrides wins over the template in the planned command", async () => {
+    const root = await makeRoot("oh-my-pi");
+    await writeTemplate(root, "balanced", {
+      runtime_config_overrides: { model: "template-model" },
+    });
+    const missionPath = await writeMission(root, "cli-override-model");
+
+    const { stdout } = await runUh([
+      "mission", "dry-run", missionPath,
+      "--template", "balanced",
+      "--runtime-config-overrides", "{\"model\":\"cli-model\"}",
+      "--root", root,
+    ]);
+
+    expect(stdout).toContain("--model cli-model");
+    expect(stdout).not.toContain("--model template-model");
+  });
+});
diff --git a/tests/exit-codes.test.ts b/tests/exit-codes.test.ts
new file mode 100644
index 0000000..2c13440
--- /dev/null
+++ b/tests/exit-codes.test.ts
@@ -0,0 +1,105 @@
+import { describe, expect, test } from "vitest";
+import {
+  exitCodeForRun,
+  EXIT_CODE_PASSED,
+  EXIT_CODE_FAILED,
+  EXIT_CODE_BLOCKED,
+  EXIT_CODE_CANCELLED,
+  EXIT_CODE_SIGNAL,
+} from "../src/harness/exit-codes.js";
+
+describe("exitCodeForRun", () => {
+  test("constants adhere to terminal contract", () => {
+    expect(EXIT_CODE_PASSED).toBe(0);
+    expect(EXIT_CODE_FAILED).toBe(1);
+    expect(EXIT_CODE_BLOCKED).toBe(2);
+    expect(EXIT_CODE_CANCELLED).toBe(130);
+    expect(EXIT_CODE_SIGNAL).toBe(143);
+  });
+
+  describe("passed outcomes", () => {
+    test("returns 0 for passed status without stop code", () => {
+      expect(exitCodeForRun("passed")).toBe(0);
+      expect(exitCodeForRun("passed", undefined)).toBe(0);
+      expect(exitCodeForRun("passed", null)).toBe(0);
+    });
+
+    test("returns 0 for passed status with empty stop code", () => {
+      expect(exitCodeForRun("passed", "")).toBe(0);
+    });
+  });
+
+  describe("cancelled outcomes", () => {
+    test("returns 130 for cancelled status", () => {
+      expect(exitCodeForRun("cancelled")).toBe(130);
+      expect(exitCodeForRun("cancelled", undefined)).toBe(130);
+      expect(exitCodeForRun("cancelled", null)).toBe(130);
+    });
+
+    test("returns 130 when stop_code is cancelled regardless of status", () => {
+      expect(exitCodeForRun("failed", "cancelled")).toBe(130);
+      expect(exitCodeForRun("running", "cancelled")).toBe(130);
+      expect(exitCodeForRun("blocked", "cancelled")).toBe(130);
+      expect(exitCodeForRun("passed", "cancelled")).toBe(130);
+      expect(exitCodeForRun(undefined, "cancelled")).toBe(130);
+      expect(exitCodeForRun(null, "cancelled")).toBe(130);
+      expect(exitCodeForRun("", "cancelled")).toBe(130);
+    });
+  });
+
+  describe("blocked outcomes", () => {
+    test("returns 2 for blocked status", () => {
+      expect(exitCodeForRun("blocked")).toBe(2);
+      expect(exitCodeForRun("blocked", undefined)).toBe(2);
+      expect(exitCodeForRun("blocked", null)).toBe(2);
+    });
+
+    test("returns 2 when stop_code is blocked", () => {
+      expect(exitCodeForRun("failed", "blocked")).toBe(2);
+      expect(exitCodeForRun(undefined, "blocked")).toBe(2);
+      expect(exitCodeForRun(null, "blocked")).toBe(2);
+    });
+
+    test("returns 2 for blocked status with failure-like stop codes", () => {
+      expect(exitCodeForRun("blocked", "policy")).toBe(2);
+      expect(exitCodeForRun("blocked", "route_mismatch")).toBe(2);
+      expect(exitCodeForRun("blocked", "route_unverified")).toBe(2);
+    });
+  });
+
+  describe("failed outcomes", () => {
+    test("returns 1 for failed status", () => {
+      expect(exitCodeForRun("failed")).toBe(1);
+      expect(exitCodeForRun("failed", undefined)).toBe(1);
+      expect(exitCodeForRun("failed", null)).toBe(1);
+    });
+
+    test("returns 1 for failed status with various non-cancellation stop codes", () => {
+      expect(exitCodeForRun("failed", "timeout")).toBe(1);
+      expect(exitCodeForRun("failed", "stall")).toBe(1);
+      expect(exitCodeForRun("failed", "deadline")).toBe(1);
+      expect(exitCodeForRun("failed", "turn_limit")).toBe(1);
+      expect(exitCodeForRun("failed", "output_limit")).toBe(1);
+      expect(exitCodeForRun("failed", "repeated_failure")).toBe(1);
+      expect(exitCodeForRun("failed", "denial_budget")).toBe(1);
+      expect(exitCodeForRun("failed", "runtime_error")).toBe(1);
+      expect(exitCodeForRun("failed", "controller_error")).toBe(1);
+      expect(exitCodeForRun("failed", "controller_lost")).toBe(1);
+      expect(exitCodeForRun("failed", "policy")).toBe(1);
+    });
+
+    test("returns 1 for missing, null, or empty arguments", () => {
+      expect(exitCodeForRun()).toBe(1);
+      expect(exitCodeForRun(undefined, undefined)).toBe(1);
+      expect(exitCodeForRun(null, null)).toBe(1);
+      expect(exitCodeForRun("", "")).toBe(1);
+    });
+
+    test("returns 1 for unknown status values", () => {
+      expect(exitCodeForRun("running")).toBe(1);
+      expect(exitCodeForRun("unknown")).toBe(1);
+      expect(exitCodeForRun("error")).toBe(1);
+      expect(exitCodeForRun("PASSED")).toBe(1);
+    });
+  });
+});
diff --git a/tests/experience-store.test.ts b/tests/experience-store.test.ts
new file mode 100644
index 0000000..bddc58e
--- /dev/null
+++ b/tests/experience-store.test.ts
@@ -0,0 +1,290 @@
+import { afterEach, describe, expect, test } from "vitest";
+import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { stringify } from "yaml";
+import { indexRuns, paretoFrontier, summarizeRuns } from "../src/harness/experience-store.js";
+
+let root: string;
+
+const usageFixture = () => readFile(path.join(process.cwd(), "tests", "fixtures", "runtime-events", "command-code-usage.ndjson"), "utf8");
+
+const pricesYaml = [
+  "schema_version: uh.prices.v0",
+  "models:",
+  "  qwen/qwen3.8-flash:",
+  "    input_usd_per_million: 2",
+  "    output_usd_per_million: 8",
+  "    cache_read_usd_per_million: 0.4",
+  "    cache_write_usd_per_million: 1",
+  '    source: "test placeholder, not a real price"',
+].join("\n") + "\n";
+
+afterEach(async () => {
+  if (root) await rm(root, { recursive: true, force: true });
+});
+
+async function putRun(missionId: string, runId: string, files: Record<string, unknown | string>) {
+  const dir = path.join(root, ".harness", "missions", missionId, "runs", runId);
+  await mkdir(dir, { recursive: true });
+  for (const [name, value] of Object.entries(files)) {
+    await writeFile(path.join(dir, name), typeof value === "string" ? value : name.endsWith(".yaml") ? stringify(value) : JSON.stringify(value), "utf8");
+  }
+  return dir;
+}
+
+const result = (overrides: Record<string, unknown> = {}) => ({
+  schema_version: "uh.runtime-result.v0", mission_id: "mission-a", runtime: "hermes", status: "passed",
+  started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:00:02.000Z",
+  prompt_path: "prompt.md", stdout_path: "stdout.log", stderr_path: "stderr.log",
+  provider: "provider-a", model: "model-a", usage: { source: "runtime", input_tokens: 100, output_tokens: 20, cache_read_tokens: 30, cache_write_tokens: 10, cost_usd: 1.25, cost_basis: "provider_reported" },
+  ...overrides,
+});
+
+const control = (overrides: Record<string, unknown> = {}) => ({
+  schema_version: "uh.runtime-control.v0", mission_id: "mission-a", run_id: "run-a", runtime: "hermes",
+  controller_pid: 1, started_at: "2026-09-21T10:00:00.000Z", heartbeat_at: "2026-09-21T10:00:02.000Z",
+  status: "passed", turns: 4, denials: 1, inflight_tools: 0, peak_memory_bytes: 4096, ...overrides,
+});
+
+describe("experience store", () => {
+  test("indexes readable settled artifacts without inventing missing values", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-"));
+    await putRun("mission-a", "run-a", {
+      "mission.yaml": { schema_version: "uh.mission.v0", id: "mission-a", title: "A", workflow_profile: "spec-first-feature" },
+      "runtime-result.yaml": result(), "runtime-control.json": control(),
+      "verification.yaml": { schema_version: "uh.verification-result.v0", mission_id: "mission-a", status: "passed", checks: [] },
+      "session-template.json": { template_id: "balanced", tier: "balanced", containment: "standard", overridden_by_mission: [] },
+    });
+    await writeFile(path.join(root, ".harness", "missions", "mission-a", "mission.yaml"), stringify({
+      schema_version: "uh.mission.v0", id: "mission-a", title: "A", workflow_profile: "spec-first-feature",
+    }), "utf8");
+    await putRun("mission-a", "run-b", {
+      "runtime-result.yaml": result({ status: "failed", provider: undefined, model: undefined, usage: { source: "runtime" }, cost_usd: undefined, cost_basis: undefined }),
+      "runtime-control.json": control({ run_id: "run-b", status: "failed", stop_code: "timeout", stop_reason: "deadline exceeded", turns: 2, denials: 0, peak_memory_bytes: undefined }),
+    });
+    await putRun("mission-a", "run-c", {
+      "runtime-result.yaml": result({ status: "passed", runtime: "codex", provider: "provider-b", model: "model-b", usage: { source: "runtime", input_tokens: 10, output_tokens: 2, cost_usd: 0.5, cost_basis: "runtime_estimate" } }),
+      "runtime-control.json": control({ run_id: "run-c", runtime: "codex", turns: 3, denials: 0 }),
+      "runtime-recovery.json": { schema_version: "uh.runtime-recovery.v0", source_run_id: "run-b", session_id: "saved", notes: "resume" },
+    });
+    await putRun("mission-a", "truncated", { "runtime-control.json": "{\"schema_version\":" });
+
+    const records = await indexRuns(root);
+    expect(records).toHaveLength(3);
+    expect(records.find((record) => record.run_id === "run-a")).toMatchObject({
+      mission_id: "mission-a", workflow_profile: "spec-first-feature", duration_ms: 2000,
+      turns: 4, denials: 1, cost_usd: 1.25, verification_status: "passed", peak_memory_bytes: 4096,
+      template_id: "balanced", tier: "balanced",
+    });
+    expect(records.find((record) => record.run_id === "run-b")).toMatchObject({ status: "failed", stop_code: "timeout" });
+    expect(records.find((record) => record.run_id === "run-b")?.cost_usd).toBeUndefined();
+    expect(records.find((record) => record.run_id === "run-b")?.template_id).toBeUndefined();
+    expect(records.find((record) => record.run_id === "run-b")?.tier).toBeUndefined();
+    expect(records.find((record) => record.run_id === "run-c")).toMatchObject({ resumed_from: "run-b", runtime: "codex" });
+  });
+
+  test("filters missions and summarizes known cost only", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-"));
+    await putRun("one", "one-pass", { "runtime-result.yaml": result({ mission_id: "one", cost_usd: 2 }), "runtime-control.json": control({ mission_id: "one", run_id: "one-pass" }) });
+    await putRun("two", "two-pass", { "runtime-result.yaml": result({ mission_id: "two", runtime: "codex", cost_usd: 9 }), "runtime-control.json": control({ mission_id: "two", run_id: "two-pass", runtime: "codex" }) });
+    const records = await indexRuns(root, { missionId: "one" });
+    expect(records).toHaveLength(1);
+    const all = await indexRuns(root);
+    const summaries = summarizeRuns(all, "runtime");
+    expect(summaries.find((summary) => summary.key === "hermes")).toMatchObject({ runs: 1, passed: 1, success_rate: 1, known_cost_runs: 1, total_cost_usd: 2, mean_cost_usd: 2 });
+  });
+
+  test("groups runs by adopted template id and tier, leaving runs without the file ungrouped", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-"));
+    await putRun("mission-a", "run-balanced", {
+      "runtime-result.yaml": result({ mission_id: "mission-a" }),
+      "runtime-control.json": control({ mission_id: "mission-a", run_id: "run-balanced" }),
+      "session-template.json": { template_id: "balanced", tier: "balanced", containment: "standard", overridden_by_mission: [] },
+    });
+    await putRun("mission-a", "run-cheap", {
+      "runtime-result.yaml": result({ mission_id: "mission-a" }),
+      "runtime-control.json": control({ mission_id: "mission-a", run_id: "run-cheap" }),
+      "session-template.json": { template_id: "low-cost", tier: "low-cost", containment: "standard", overridden_by_mission: ["limits"] },
+    });
+    await putRun("mission-a", "run-untemplated", {
+      "runtime-result.yaml": result({ mission_id: "mission-a" }),
+      "runtime-control.json": control({ mission_id: "mission-a", run_id: "run-untemplated" }),
+    });
+
+    const records = await indexRuns(root);
+    const untemplated = records.find((record) => record.run_id === "run-untemplated");
+    expect(untemplated?.template_id).toBeUndefined();
+    expect(untemplated?.tier).toBeUndefined();
+
+    const byTemplate = summarizeRuns(records, "template");
+    expect(byTemplate.find((summary) => summary.key === "balanced")).toMatchObject({ runs: 1, passed: 1, success_rate: 1 });
+    expect(byTemplate.find((summary) => summary.key === "low-cost")).toMatchObject({ runs: 1, passed: 1 });
+    expect(byTemplate.find((summary) => summary.key === undefined)).toMatchObject({ runs: 1, passed: 1 });
+
+    const byTier = summarizeRuns(records, "tier");
+    expect(byTier.find((summary) => summary.key === "balanced")).toMatchObject({ runs: 1 });
+    expect(byTier.find((summary) => summary.key === "low-cost")).toMatchObject({ runs: 1 });
+    expect(byTier.find((summary) => summary.key === undefined)).toMatchObject({ runs: 1 });
+  });
+
+  test("removes dominated groups and never treats unknown cost as free", () => {
+    const summaries = [
+      { key: "cheap-success", runs: 2, passed: 2, success_rate: 1, known_cost_runs: 2, total_cost_usd: 2, mean_cost_usd: 1, mean_duration_ms: 1, cache_read_share: 0 },
+      { key: "dominated", runs: 2, passed: 1, success_rate: 0.5, known_cost_runs: 2, total_cost_usd: 10, mean_cost_usd: 5, mean_duration_ms: 2, cache_read_share: 0 },
+      { key: "unknown-cost", runs: 1, passed: 1, success_rate: 1, known_cost_runs: 0, total_cost_usd: 0, mean_cost_usd: undefined, mean_duration_ms: undefined, cache_read_share: undefined },
+    ];
+    expect(paretoFrontier(summaries)).toEqual([summaries[0]]);
+  });
+});
+
+async function putArtifact(filePath: string, value: unknown | string) {
+  await mkdir(path.dirname(filePath), { recursive: true });
+  await writeFile(filePath, typeof value === "string" ? value : filePath.endsWith(".yaml") ? stringify(value) : JSON.stringify(value), "utf8");
+}
+
+type TeamWorkerFixture = { id: string; role: string; missionId?: string; runId: string; status?: string; model?: string; cost?: number; events?: string };
+
+/**
+ * A team parent under `.harness/missions/<id>/team/` with one artifact scope
+ * per worker, mirroring what `run-team` writes: the parent run plus a
+ * `team-state.json` pointer to each worker's own canonical run.
+ */
+async function putTeamRun(missionId: string, parentRunId: string, workers: TeamWorkerFixture[]) {
+  const missionRoot = path.join(root, ".harness", "missions", missionId);
+  const teamRoot = path.join(missionRoot, "team");
+  await putArtifact(path.join(missionRoot, "mission.yaml"), {
+    schema_version: "uh.mission.v0", id: missionId, title: "Team mission", workflow_profile: "staged", shape: "team",
+  });
+  await putArtifact(path.join(missionRoot, "runs", parentRunId, "runtime-result.yaml"), {
+    schema_version: "uh.runtime-result.v0", mission_id: missionId, runtime: "ultimate-harness-team", status: "passed",
+    started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:05:00.000Z",
+    prompt_path: "prompt.md", stdout_path: "stdout.log", stderr_path: "stderr.log",
+  });
+  await putArtifact(path.join(missionRoot, "runs", parentRunId, "team-state.json"), {
+    schema_version: "uh.team-run.v0", mission_id: missionId, run_id: parentRunId, status: "passed",
+    started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:05:00.000Z",
+    integration_report_path: `.harness/missions/${missionId}/team/integration-report.md`,
+    verification_status: null,
+    leader: { role: "integrator", adapter: "hermes", status: "succeeded" },
+    workers: workers.map((worker) => ({
+      id: worker.id,
+      role: worker.role,
+      ...(worker.missionId ? { mission_id: worker.missionId } : {}),
+      adapter: "command-code",
+      run_id: worker.runId,
+      artifact_scope: `artifacts/${parentRunId}/workers/${worker.id}`,
+      runtime_result_path: null,
+      status: worker.status ?? "succeeded",
+      completion: "complete",
+      started_at: "2026-09-21T10:00:00.000Z",
+      finished_at: "2026-09-21T10:04:00.000Z",
+    })),
+  });
+  for (const worker of workers) {
+    const workerMissionId = worker.missionId ?? missionId;
+    const workerMissionRoot = path.join(teamRoot, "artifacts", parentRunId, "workers", worker.id, ".harness", "missions", workerMissionId);
+    await putArtifact(path.join(workerMissionRoot, "mission.yaml"), {
+      schema_version: "uh.mission.v0", id: workerMissionId, title: `Worker ${worker.id}`, workflow_profile: "bugfix-contained",
+    });
+    await putArtifact(path.join(workerMissionRoot, "runs", worker.runId, "runtime-result.yaml"), {
+      schema_version: "uh.runtime-result.v0", mission_id: workerMissionId, runtime: "command-code",
+      status: worker.status ?? "passed",
+      started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:04:00.000Z",
+      prompt_path: "prompt.md", stdout_path: "stdout.log", stderr_path: "stderr.log",
+      ...(worker.model ? { model: worker.model } : {}),
+      ...(worker.cost !== undefined ? { cost_usd: worker.cost, cost_basis: "provider_reported" } : {}),
+    });
+    if (worker.events !== undefined) {
+      await putArtifact(path.join(workerMissionRoot, "runs", worker.runId, "events.ndjson"), worker.events);
+    }
+  }
+}
+
+describe("experience store — team worker runs", () => {
+  test("indexes team worker runs with the worker role and team mission id", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-team-"));
+    await putTeamRun("team-1", "parent-1", [
+      { id: "worker-a", role: "worker-a", missionId: "w1", runId: "run-wa", model: "provider/model", cost: 2 },
+      { id: "worker-b", role: "worker-b", runId: "run-wb", status: "failed" },
+    ]);
+
+    const records = await indexRuns(root);
+    expect(records).toHaveLength(3);
+
+    const workerA = records.find((record) => record.run_id === "run-wa");
+    expect(workerA).toMatchObject({
+      mission_id: "w1",
+      runtime: "command-code",
+      team: { mission_id: "team-1", role: "worker-a" },
+      cost_usd: 2,
+      cost_source: "reported",
+    });
+    expect(workerA?.cost_unknown_reason).toBeUndefined();
+
+    // A worker without its own mission id indexes under the team mission id.
+    expect(records.find((record) => record.run_id === "run-wb")).toMatchObject({
+      mission_id: "team-1",
+      team: { mission_id: "team-1", role: "worker-b" },
+      status: "failed",
+    });
+
+    // The parent team run is still indexed.
+    expect(records.find((record) => record.run_id === "parent-1")).toMatchObject({ runtime: "ultimate-harness-team" });
+
+    // Team worker runs are visible to template grouping.
+    const summaries = summarizeRuns(records, "template");
+    expect(summaries.reduce((total, summary) => total + summary.runs, 0)).toBe(3);
+  });
+
+  test("records why a costless Command Code worker's cost is unknown", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-team-cost-"));
+    await putTeamRun("team-1", "parent-1", [{ id: "worker-a", role: "worker-a", runId: "run-wa" }]);
+
+    const record = (await indexRuns(root)).find((candidate) => candidate.run_id === "run-wa");
+    expect(record?.cost_usd).toBeUndefined();
+    expect(record?.cost_source).toBeUndefined();
+    expect(record?.cost_unknown_reason).toMatch(/command-code/i);
+  });
+
+  test("indexes native token totals and operator-priced cost for a Command Code worker", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-team-usage-"));
+    await putTeamRun("team-1", "parent-1", [{ id: "worker-a", role: "worker-a", runId: "run-wa", events: await usageFixture() }]);
+    await writeFile(path.join(root, ".harness", "prices.yaml"), pricesYaml, "utf8");
+
+    const record = (await indexRuns(root)).find((candidate) => candidate.run_id === "run-wa");
+    expect(record?.cost_usd).toBeCloseTo(0.0901648, 12);
+    expect(record?.cost_source).toBe("estimated");
+    expect(record?.cost_unknown_reason).toBeUndefined();
+    expect(record?.token_totals).toEqual({ input: 39076, output: 580, cache_read: 18432, cache_write: 0 });
+    // The stream names the model even though the result document does not.
+    expect(record?.model).toBe("Qwen/Qwen3.8-Flash");
+  });
+
+  test("records token totals independent of price when no table entry prices the model", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-team-unpriced-"));
+    await putTeamRun("team-1", "parent-1", [{ id: "worker-a", role: "worker-a", runId: "run-wa", events: await usageFixture() }]);
+
+    const record = (await indexRuns(root)).find((candidate) => candidate.run_id === "run-wa");
+    expect(record?.cost_usd).toBeUndefined();
+    expect(record?.cost_source).toBeUndefined();
+    expect(record?.cost_unknown_reason).toMatch(/Qwen\/Qwen3\.8-Flash/);
+    expect(record?.cost_unknown_reason).toMatch(/prices\.yaml/);
+    expect(record?.token_totals).toEqual({ input: 39076, output: 580, cache_read: 18432, cache_write: 0 });
+  });
+
+  test("does not double count a run reachable through its own mission", async () => {
+    root = await mkdtemp(path.join(tmpdir(), "uh-experience-team-dedup-"));
+    await putTeamRun("team-1", "parent-1", [{ id: "worker-a", role: "worker-a", missionId: "w1", runId: "run-wa" }]);
+    // The same canonical run also lives under the mission the worker names, so
+    // the plain walk reaches it too.
+    await putRun("w1", "run-wa", {
+      "runtime-result.yaml": result({ mission_id: "w1", runtime: "command-code", cost_usd: 5 }),
+    });
+
+    const records = await indexRuns(root);
+    const workerRuns = records.filter((record) => record.run_id === "run-wa");
+    expect(workerRuns).toHaveLength(1);
+    expect(workerRuns[0].team).toEqual({ mission_id: "team-1", role: "worker-a" });
+  });
+});
diff --git a/tests/experiment.test.ts b/tests/experiment.test.ts
new file mode 100644
index 0000000..96833dc
--- /dev/null
+++ b/tests/experiment.test.ts
@@ -0,0 +1,489 @@
+import { afterEach, describe, expect, test } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { access, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { stringify } from "yaml";
+import { validateExperiment } from "../src/schema/experiment.js";
+import {
+  experimentRepeatsLine,
+  experimentVerdictLine,
+  loadExperiment,
+  loadExperimentRuns,
+  mulberry32,
+  planExperiment,
+  renderExperimentMarkdown,
+  runExperiment,
+  splitTasks,
+  summarizeExperiment,
+  type ExperimentRunRecord,
+  type ExperimentRunner,
+} from "../src/harness/experiment.js";
+import { compareArms } from "../src/harness/run-comparison.js";
+import { indexRuns } from "../src/harness/experience-store.js";
+import { initializeHarness } from "../src/harness/init.js";
+
+const execFileP = promisify(execFile);
+const TEN_TASKS = ["t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9", "t10"];
+const FOURTEEN_TASKS = Array.from({ length: 14 }, (_, index) => `task-${index + 1}`);
+
+let roots: string[] = [];
+
+afterEach(async () => {
+  for (const root of roots) await rm(root, { recursive: true, force: true });
+  roots = [];
+});
+
+async function makeRoot(): Promise<string> {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-experiment-"));
+  roots.push(root);
+  return root;
+}
+
+function makeSpec(overrides: Record<string, unknown> = {}) {
+  return validateExperiment({
+    schema_version: "uh.experiment.v0",
+    id: "exp-1",
+    title: "Guard denial tone",
+    tasks: TEN_TASKS,
+    split: { seed: 7 },
+    arms: [{ id: "control" }, { id: "treatment" }],
+    baseline: { arm: "control" },
+    ...overrides,
+  });
+}
+
+function baseRecord(overrides: Partial<ExperimentRunRecord> = {}): ExperimentRunRecord {
+  return {
+    experiment_id: "exp-1",
+    task: "t1",
+    arm: "control",
+    attempt: 1,
+    split: "search",
+    skipped: false,
+    status: "passed",
+    ...overrides,
+  };
+}
+
+async function putMission(root: string, id: string, withChecks = true): Promise<void> {
+  const dir = path.join(root, ".harness", "missions", id);
+  await mkdir(dir, { recursive: true });
+  await writeFile(path.join(dir, "mission.yaml"), stringify({
+    schema_version: "uh.mission.v0",
+    id,
+    title: `Mission ${id}`,
+    workflow_profile: "spec-first-feature",
+    objective: "Experiment task",
+    verification: { required_checks: withChecks ? [{ name: "typecheck", command: "true" }] : [] },
+  }), "utf8");
+}
+
+async function writeRunArtifacts(root: string, task: string, runId: string, status: string, cost?: number): Promise<void> {
+  const dir = path.join(root, ".harness", "missions", task, "runs", runId);
+  await mkdir(dir, { recursive: true });
+  await writeFile(path.join(dir, "runtime-result.yaml"), stringify({
+    schema_version: "uh.runtime-result.v0",
+    mission_id: task,
+    runtime: "hermes",
+    status,
+    started_at: "2026-09-21T10:00:00.000Z",
+    finished_at: "2026-09-21T10:00:02.000Z",
+    prompt_path: "prompt.md",
+    stdout_path: "stdout.log",
+    stderr_path: "stderr.log",
+    ...(cost !== undefined ? { cost_usd: cost, cost_basis: "provider_reported" } : {}),
+  }), "utf8");
+  await writeFile(path.join(dir, "runtime-control.json"), JSON.stringify({
+    schema_version: "uh.runtime-control.v0",
+    mission_id: task,
+    run_id: runId,
+    runtime: "hermes",
+    controller_pid: 1,
+    started_at: "2026-09-21T10:00:00.000Z",
+    heartbeat_at: "2026-09-21T10:00:02.000Z",
+    status,
+    turns: 1,
+    denials: 0,
+    inflight_tools: 0,
+  }), "utf8");
+}
+
+async function writeExperimentSpec(root: string, spec: Record<string, unknown>): Promise<void> {
+  const dir = path.join(root, ".harness", "experiments");
+  await mkdir(dir, { recursive: true });
+  await writeFile(path.join(dir, `${spec.id as string}.yaml`), stringify(spec), "utf8");
+}
+
+async function runUh(args: string[]) {
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], {
+    cwd: process.cwd(),
+    timeout: 30_000,
+    env: { ...process.env, UH_TELEMETRY: "", UH_POSTHOG_API_KEY: "" },
+  });
+}
+
+describe("experiment split", () => {
+  test("mulberry32 is deterministic and stays in [0, 1)", () => {
+    const a = mulberry32(42);
+    const b = mulberry32(42);
+    const seqA = [a(), a(), a(), a()];
+    expect(seqA).toEqual([b(), b(), b(), b()]);
+    expect(seqA.every((value) => value >= 0 && value < 1)).toBe(true);
+  });
+
+  test("the same seed reproduces the split and a different seed changes it", () => {
+    const a = splitTasks(makeSpec({ split: { seed: 7 } }));
+    const b = splitTasks(makeSpec({ split: { seed: 7 } }));
+    expect(a).toEqual(b);
+    expect(a.seed).toBe(7);
+    expect(a.held_out.length).toBe(3);
+    expect(a.search.length).toBe(7);
+    expect([...a.search, ...a.held_out].sort()).toEqual([...TEN_TASKS].sort());
+
+    const c = splitTasks(makeSpec({ split: { seed: 8 } }));
+    expect(c.held_out).not.toEqual(a.held_out);
+  });
+
+  test("an explicit held-out list is honored and must reference real tasks", () => {
+    const spec = makeSpec({ split: { held_out: ["t1", "t2", "t3", "t4", "t5"] } });
+    const split = splitTasks(spec);
+    expect(split.seed).toBeUndefined();
+    expect(split.held_out).toEqual(["t1", "t2", "t3", "t4", "t5"]);
+    expect(split.search).toEqual(["t6", "t7", "t8", "t9", "t10"]);
+    expect(() => validateExperiment({
+      schema_version: "uh.experiment.v0",
+      id: "exp-1",
+      title: "Bad",
+      tasks: TEN_TASKS,
+      split: { held_out: ["nope"] },
+      arms: [{ id: "control" }],
+      baseline: { arm: "control" },
+    })).toThrow(/not in tasks/);
+  });
+
+  test("the plan interleaves arms and runs search tasks before held-out tasks", () => {
+    const spec = makeSpec({
+      tasks: ["s1", "s2", "h1"],
+      split: { held_out: ["h1"] },
+      arms: [{ id: "a", attempts_per_task: 2 }, { id: "b" }],
+      baseline: { arm: "a" },
+    });
+    const plan = planExperiment(spec);
+    expect(plan.slice(0, 3)).toEqual([
+      { task: "s1", arm: "a", attempt: 1, split: "search" },
+      { task: "s1", arm: "b", attempt: 1, split: "search" },
+      { task: "s1", arm: "a", attempt: 2, split: "search" },
+    ]);
+    expect(plan.slice(3, 6)).toEqual([
+      { task: "s2", arm: "a", attempt: 1, split: "search" },
+      { task: "s2", arm: "b", attempt: 1, split: "search" },
+      { task: "s2", arm: "a", attempt: 2, split: "search" },
+    ]);
+    expect(plan.at(-1)).toEqual({ task: "h1", arm: "a", attempt: 2, split: "held_out" });
+    // Every task follows the same arm-interleaved rhythm, so a budget stop
+    // trims each arm by the same amount.
+    for (const task of ["s1", "s2", "h1"]) {
+      expect(plan.filter((entry) => entry.task === task).map((entry) => `${entry.arm}${entry.attempt}`)).toEqual(["a1", "b1", "a2"]);
+    }
+    expect(plan).toHaveLength(9);
+  });
+});
+
+describe("experiment run", () => {
+  test("a max_runs budget stop marks the rest of the plan skipped with reason budget", async () => {
+    const root = await makeRoot();
+    const spec = makeSpec({ tasks: ["t1", "t2"], split: { seed: 1 }, budget: { max_runs: 2 } });
+    const runner: ExperimentRunner = async (request) => ({
+      run_id: `${request.task}-${request.arm.id}-${request.attempt}`,
+      mission_id: request.task,
+      status: "passed",
+      cost_usd: 1,
+      denials: 0,
+    });
+    const outcome = await runExperiment(root, spec, { runner, now: () => 0 });
+
+    expect(outcome.executed).toBe(2);
+    expect(outcome.stopped).toBe(true);
+    expect(outcome.stop_reason).toBe("max_runs");
+    const executed = outcome.runs.filter((record) => !record.skipped);
+    const skipped = outcome.runs.filter((record) => record.skipped);
+    expect(executed).toHaveLength(2);
+    expect(new Set(executed.map((record) => record.arm))).toEqual(new Set(["control", "treatment"]));
+    expect(skipped.length).toBeGreaterThan(0);
+    expect(skipped.every((record) => record.skip_reason === "budget")).toBe(true);
+    // The report never counts a skipped row as evidence.
+    for (const split of outcome.report.splits) {
+      for (const arm of split.arms) expect(arm.runs).toBeLessThanOrEqual(2);
+    }
+  });
+
+  test("a cost budget stops on known spend and never counts unknown cost as free", async () => {
+    const pricedRoot = await makeRoot();
+    const pricedSpec = makeSpec({ tasks: ["t1", "t2"], split: { seed: 1 }, budget: { max_total_cost_usd: 2.5 } });
+    const priced = await runExperiment(pricedRoot, pricedSpec, {
+      runner: async () => ({ status: "passed", cost_usd: 1 }),
+      now: () => 0,
+    });
+    expect(priced.executed).toBe(3);
+    expect(priced.stop_reason).toBe("max_total_cost_usd");
+
+    const unpricedRoot = await makeRoot();
+    const unpricedSpec = makeSpec({ tasks: ["t1", "t2"], split: { seed: 1 }, budget: { max_total_cost_usd: 0.5 } });
+    const unpriced = await runExperiment(unpricedRoot, unpricedSpec, {
+      runner: async () => ({ status: "passed" }),
+      now: () => 0,
+    });
+    // Four planned entries; an unknown cost contributes nothing to the cap, so
+    // it can never silently stop (or be read as free).
+    expect(unpriced.executed).toBe(4);
+    expect(unpriced.stopped).toBe(false);
+    expect(unpriced.runs.every((record) => record.cost_usd === undefined)).toBe(true);
+  });
+
+  test("runExperiment persists the plan, run rows, and reports, and tags runs for the store", async () => {
+    const root = await makeRoot();
+    await initializeHarness(root);
+    await putMission(root, "t1");
+    await putMission(root, "t2");
+
+    const spec = makeSpec({ tasks: ["t1", "t2"], split: { seed: 3 } });
+    const runner: ExperimentRunner = async (request) => {
+      const runId = `${request.task}-${request.arm.id}-${request.attempt}`;
+      const status = request.arm.id === "control" ? "passed" : "failed";
+      await writeRunArtifacts(root, request.task, runId, status, 1);
+      return {
+        run_id: runId,
+        mission_id: request.task,
+        runtime: "hermes",
+        status,
+        denials: request.arm.id === "control" ? 0 : 1,
+        denial_classes: request.arm.id === "control" ? [] : ["guard_tamper"],
+        cost_usd: 1,
+      };
+    };
+    const outcome = await runExperiment(root, spec, { runner, now: () => 0 });
+
+    for (const name of ["plan.json", "runs.ndjson", "report.json", "report.md"]) {
+      await expect(access(path.join(root, ".harness", "experiments", "exp-1", name))).resolves.toBeUndefined();
+    }
+    const reloaded = await loadExperimentRuns(root, "exp-1");
+    expect(reloaded).toHaveLength(outcome.plan.length);
+
+    const treatment = reloaded.find((record) => record.arm === "treatment");
+    expect(treatment?.guard_tamper).toBe(1);
+    expect(treatment?.containment_escape).toBe(0);
+    expect(treatment?.denial_classes).toEqual({ guard_tamper: 1 });
+
+    const indexed = await indexRuns(root);
+    const tagged = indexed.filter((record) => record.experiment?.id === "exp-1");
+    expect(tagged.length).toBeGreaterThan(0);
+    expect(new Set(tagged.map((record) => record.experiment?.split))).toEqual(new Set(["search", "held_out"]));
+    expect(tagged.every((record) => record.experiment?.arm !== undefined)).toBe(true);
+  });
+});
+
+describe("experiment summarize", () => {
+  test("per-split verdicts match compareArms on the same records", () => {
+    const spec = makeSpec({ split: { held_out: ["t1", "t2", "t3", "t4", "t5"] } });
+    const split = splitTasks(spec);
+    const records: ExperimentRunRecord[] = [];
+    for (const task of split.search) {
+      records.push(baseRecord({ task, arm: "control", split: "search", status: "passed", cost_usd: 1 }));
+      records.push(baseRecord({ task, arm: "treatment", split: "search", status: "failed", cost_usd: 1 }));
+    }
+    for (const task of split.held_out) {
+      records.push(baseRecord({ task, arm: "control", split: "held_out", status: "failed", cost_usd: 1 }));
+      records.push(baseRecord({ task, arm: "treatment", split: "held_out", status: "passed", cost_usd: 1 }));
+    }
+    const report = summarizeExperiment(records, spec);
+
+    const searchControl = split.search.map((task) => ({ mission_id: task, run_id: `c-${task}`, status: "passed", cost_usd: 1 }));
+    const searchTreatment = split.search.map((task) => ({ mission_id: task, run_id: `t-${task}`, status: "failed", cost_usd: 1 }));
+    const expected = compareArms(searchControl, searchTreatment);
+    const searchComparison = report.splits.find((entry) => entry.split === "search")!.comparisons[0];
+    expect(searchComparison.a).toBe("control");
+    expect(searchComparison.b).toBe("treatment");
+    expect(searchComparison.comparison.verdict).toBe(expected.verdict);
+    expect(searchComparison.comparison.verdict).toBe("a_better");
+    expect(searchComparison.comparison.a.success_rate).toBe(expected.a.success_rate);
+
+    const heldOutComparison = report.splits.find((entry) => entry.split === "held_out")!.comparisons[0];
+    expect(heldOutComparison.comparison.verdict).toBe("b_better");
+    expect(report.split_sizes).toEqual({ search: 5, held_out: 5 });
+    expect(report.seed).toBeUndefined();
+  });
+
+  test("mean denials and guard-class stop counts are summed per arm", () => {
+    const spec = makeSpec({ tasks: ["t1"], split: { held_out: ["t1"] } });
+    const records: ExperimentRunRecord[] = [
+      baseRecord({ arm: "control", attempt: 1, split: "held_out", status: "passed", denials: 2, denial_classes: { guard_tamper: 1, write_outside: 1 }, guard_tamper: 1, containment_escape: 0 }),
+      baseRecord({ arm: "control", attempt: 2, split: "held_out", status: "failed", denials: 4, denial_classes: { containment_escape: 2 }, guard_tamper: 0, containment_escape: 2 }),
+      baseRecord({ arm: "treatment", attempt: 1, split: "held_out", status: "passed", denials: 0, denial_classes: {}, guard_tamper: 0, containment_escape: 0 }),
+    ];
+    const report = summarizeExperiment(records, spec);
+    const heldOut = report.splits.find((entry) => entry.split === "held_out")!;
+    const control = heldOut.arms.find((arm) => arm.arm === "control")!;
+    expect(control.mean_denials).toBe(3);
+    expect(control.guard_tamper_stops).toBe(1);
+    expect(control.containment_escape_stops).toBe(2);
+    const treatment = heldOut.arms.find((arm) => arm.arm === "treatment")!;
+    expect(treatment.mean_denials).toBe(0);
+    expect(treatment.guard_tamper_stops).toBe(0);
+    expect(treatment.containment_escape_stops).toBe(0);
+  });
+
+  test("unknown cost stays unknown in the structured report and the markdown", () => {
+    const spec = makeSpec({ tasks: ["t1"], split: { held_out: ["t1"] } });
+    const records: ExperimentRunRecord[] = [
+      baseRecord({ arm: "control", attempt: 1, split: "held_out", status: "passed" }),
+      baseRecord({ arm: "control", attempt: 2, split: "held_out", status: "passed" }),
+      baseRecord({ arm: "treatment", attempt: 1, split: "held_out", status: "failed" }),
+      baseRecord({ arm: "treatment", attempt: 2, split: "held_out", status: "failed" }),
+    ];
+    const report = summarizeExperiment(records, spec);
+    const control = report.splits.find((entry) => entry.split === "held_out")!.arms.find((arm) => arm.arm === "control")!;
+    expect(control.known_cost_runs).toBe(0);
+    expect(control.mean_cost_usd).toBeUndefined();
+    expect(control.total_cost_usd).toBeUndefined();
+    expect(control.cost_per_success_usd).toBeUndefined();
+
+    const markdown = renderExperimentMarkdown(report);
+    expect(markdown).toContain("unknown");
+    expect(markdown).not.toMatch(/\$0(?:\.0+)?(?:\s|\|)/);
+  });
+
+  test("the baseline lines describe plain repeats and parallel attempts", () => {
+    const spec = makeSpec({
+      tasks: ["t1", "t2", "t3", "t4", "t5", "t6"],
+      split: { held_out: ["t1", "t2", "t3"] },
+      baseline: { arm: "control", parallel_attempts: 3 },
+    });
+    const records: ExperimentRunRecord[] = [];
+    for (const [index, task] of ["t4", "t5", "t6"].entries()) {
+      records.push(baseRecord({ task, arm: "control", status: index === 0 ? "passed" : "failed" }));
+      records.push(baseRecord({ task, arm: "treatment", status: "passed" }));
+    }
+    const report = summarizeExperiment(records, spec);
+    const search = report.splits.find((entry) => entry.split === "search")!;
+    const repeat = search.baseline_repeats[0];
+    expect(repeat.baseline_arm).toBe("control");
+    expect(repeat.arm).toBe("treatment");
+    expect(repeat.parallel_attempts).toBe(3);
+    expect(repeat.target_success_rate).toBe(1);
+    expect(repeat.attempts_to_match).toBeDefined();
+    const line = experimentRepeatsLine(repeat);
+    expect(line).toContain("plain repeat(s) of control");
+    const verdict = experimentVerdictLine(search.comparisons[0].comparison, "control", "treatment");
+    expect(verdict).toMatch(/Verdict|insufficient_data|no_clear_difference/);
+    expect(verdict.endsWith(".")).toBe(true);
+  });
+});
+
+describe("loadExperiment", () => {
+  test("requires every task mission to declare verification.required_checks", async () => {
+    const root = await makeRoot();
+    await initializeHarness(root);
+    await writeExperimentSpec(root, {
+      schema_version: "uh.experiment.v0",
+      id: "exp-1",
+      title: "Checks",
+      tasks: ["good", "bad"],
+      split: { seed: 1 },
+      arms: [{ id: "control" }, { id: "treatment" }],
+      baseline: { arm: "control" },
+    });
+    await putMission(root, "good", true);
+    await putMission(root, "bad", false);
+
+    await expect(loadExperiment(root, "exp-1")).rejects.toThrow(/required_checks/);
+
+    await putMission(root, "bad", true);
+    const loaded = await loadExperiment(root, "exp-1");
+    expect(loaded.id).toBe("exp-1");
+    expect(loaded.tasks).toEqual(["good", "bad"]);
+  });
+});
+
+describe("uh experiment report", () => {
+  test("prints the seed, split sizes, arm intervals, stop counts, verdict, and plain-repeats line", async () => {
+    const root = await makeRoot();
+    await initializeHarness(root);
+    const spec = validateExperiment({
+      schema_version: "uh.experiment.v0",
+      id: "exp-1",
+      title: "Guard denial tone",
+      tasks: FOURTEEN_TASKS,
+      split: { seed: 7 },
+      arms: [{ id: "control" }, { id: "treatment" }],
+      baseline: { arm: "control" },
+    });
+    await writeExperimentSpec(root, {
+      schema_version: "uh.experiment.v0",
+      id: "exp-1",
+      title: "Guard denial tone",
+      tasks: FOURTEEN_TASKS,
+      split: { seed: 7 },
+      arms: [{ id: "control" }, { id: "treatment" }],
+      baseline: { arm: "control" },
+    });
+    for (const task of FOURTEEN_TASKS) await putMission(root, task);
+
+    const split = splitTasks(spec);
+    const records: ExperimentRunRecord[] = [];
+    let index = 0;
+    const add = (task: string, arm: string, splitName: "search" | "held_out", status: string, denialClasses: string[]) => {
+      index += 1;
+      records.push(baseRecord({
+        task,
+        arm,
+        split: splitName,
+        attempt: index,
+        status,
+        denials: denialClasses.length,
+        denial_classes: denialClasses.length ? Object.fromEntries(denialClasses.map((name) => [name, 1])) : {},
+        guard_tamper: denialClasses.filter((name) => name === "guard_tamper").length,
+        containment_escape: denialClasses.filter((name) => name === "containment_escape").length,
+        cost_usd: 1,
+      }));
+    };
+    // The baseline (`control`) is the weaker configuration, so the plain-repeats
+    // line is the interesting one: repeating it would have to catch `treatment`.
+    for (const [position, task] of split.search.entries()) {
+      add(task, "control", "search", position < 2 ? "passed" : "failed", ["guard_tamper"]);
+      add(task, "treatment", "search", "passed", []);
+    }
+    for (const [position, task] of split.held_out.entries()) {
+      add(task, "control", "held_out", position < 1 ? "passed" : "failed", []);
+      add(task, "treatment", "held_out", "passed", ["containment_escape"]);
+    }
+    await mkdir(path.join(root, ".harness", "experiments", "exp-1"), { recursive: true });
+    await writeFile(
+      path.join(root, ".harness", "experiments", "exp-1", "runs.ndjson"),
+      records.map((record) => JSON.stringify(record)).join("\n") + "\n",
+      "utf8",
+    );
+
+    const { stdout } = await runUh(["experiment", "report", "exp-1", "--root", root]);
+    expect(stdout).toContain("Seed: 7");
+    expect(stdout).toContain("Split sizes: search 9, held_out 5");
+    expect(stdout).toContain("control");
+    expect(stdout).toContain("treatment");
+    expect(stdout).toMatch(/Verdict \(control vs treatment\): b_better/);
+    expect(stdout).toMatch(/Plain repeats \(control vs treatment\): \d+ plain repeat\(s\) of control/);
+    expect(stdout).toMatch(/GUARD_TAMPER/);
+
+    const { stdout: json } = await runUh(["experiment", "report", "exp-1", "--root", root, "--json"]);
+    const parsed = JSON.parse(json) as { experiment_id: string; seed: number; splits: Array<{ split: string; arms: Array<{ arm: string; guard_tamper_stops: number; containment_escape_stops: number; mean_denials: number }> }> };
+    expect(parsed.experiment_id).toBe("exp-1");
+    expect(parsed.seed).toBe(7);
+    expect(parsed.splits).toHaveLength(2);
+    const searchReport = parsed.splits.find((entry) => entry.split === "search")!;
+    const searchControl = searchReport.arms.find((arm) => arm.arm === "control")!;
+    expect(searchControl.guard_tamper_stops).toBe(9);
+    expect(searchControl.mean_denials).toBe(1);
+    const heldOutReport = parsed.splits.find((entry) => entry.split === "held_out")!;
+    expect(heldOutReport.arms.find((arm) => arm.arm === "treatment")!.containment_escape_stops).toBe(5);
+  });
+});
diff --git a/tests/extension-honcho-memory.test.ts b/tests/extension-honcho-memory.test.ts
index d024e7c..0e6cbef 100644
--- a/tests/extension-honcho-memory.test.ts
+++ b/tests/extension-honcho-memory.test.ts
@@ -125,6 +125,7 @@ const HONCHO_ENV_KEYS = [
 
 const savedEnv: Record<string, string | undefined> = {};
 let savedHome: string | undefined;
+let savedUserProfile: string | undefined;
 let tmpHomeDir: string | undefined;
 
 beforeEach(async () => {
@@ -135,12 +136,13 @@ beforeEach(async () => {
   // Isolate from the developer's real ~/.honcho/config.json so tests do
   // not silently pick up a live apiKey or workspace.
   savedHome = process.env.HOME;
+  savedUserProfile = process.env.USERPROFILE;
   const { mkdtemp } = await import("node:fs/promises");
   const { tmpdir } = await import("node:os");
   const { join } = await import("node:path");
   tmpHomeDir = await mkdtemp(join(tmpdir(), "uh-honcho-home-"));
   process.env.HOME = tmpHomeDir;
-  process.env.HONCHO_ENABLED = "false";
+  process.env.USERPROFILE = tmpHomeDir;
   resetHonchoExtensionForTests();
   setHonchoClientFactory(undefined);
 });
@@ -159,6 +161,11 @@ afterEach(async () => {
   } else {
     process.env.HOME = savedHome;
   }
+  if (savedUserProfile === undefined) {
+    delete process.env.USERPROFILE;
+  } else {
+    process.env.USERPROFILE = savedUserProfile;
+  }
   if (tmpHomeDir) {
     const { rm } = await import("node:fs/promises");
     try {
diff --git a/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.html b/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.html
new file mode 100644
index 0000000..49f6572
--- /dev/null
+++ b/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.html
@@ -0,0 +1 @@
+<html><body><p>This captured response is paired with a non-success status and must be treated as unreachable rather than verified.</p></body></html>
diff --git a/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.status b/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.status
new file mode 100644
index 0000000..a712e76
--- /dev/null
+++ b/tests/fixtures/landscape/34389dfe7d342c0d5727131cab799657ca90bb8b2adac6101877e0c7eef12383.status
@@ -0,0 +1 @@
+503
diff --git a/tests/fixtures/landscape/568e389ee433017fdda6bc6f3d47654e3c060fdfcac7c40572f848fd6984b84f.html b/tests/fixtures/landscape/568e389ee433017fdda6bc6f3d47654e3c060fdfcac7c40572f848fd6984b84f.html
new file mode 100644
index 0000000..c7958bf
--- /dev/null
+++ b/tests/fixtures/landscape/568e389ee433017fdda6bc6f3d47654e3c060fdfcac7c40572f848fd6984b84f.html
@@ -0,0 +1 @@
+<html><body><p>This local guide page is intentionally not consulted because guide-sourced rows are unverifiable.</p></body></html>
diff --git a/tests/fixtures/landscape/5945f8e3583cce412080eb2184f3de46b683ea7728c8112e0166a30eb1e44f49.html b/tests/fixtures/landscape/5945f8e3583cce412080eb2184f3de46b683ea7728c8112e0166a30eb1e44f49.html
new file mode 100644
index 0000000..2546dc9
--- /dev/null
+++ b/tests/fixtures/landscape/5945f8e3583cce412080eb2184f3de46b683ea7728c8112e0166a30eb1e44f49.html
@@ -0,0 +1 @@
+<html><body><h1>Changed page</h1><p>This captured page no longer contains the earlier passage. It has replacement language and enough content to represent a fetched source.</p><p>The verifier should report drift when four word sequences from the quotation are absent from this document.</p></body></html>
diff --git a/tests/fixtures/landscape/97c69ab0c031e0268881792e8662741d4ab82111d3378205f7693ec08964dfea.html b/tests/fixtures/landscape/97c69ab0c031e0268881792e8662741d4ab82111d3378205f7693ec08964dfea.html
new file mode 100644
index 0000000..f517ded
--- /dev/null
+++ b/tests/fixtures/landscape/97c69ab0c031e0268881792e8662741d4ab82111d3378205f7693ec08964dfea.html
@@ -0,0 +1 @@
+<html><body><h1>Captured page</h1><p>A durable worker register supports monthly freshness checks for every captured source.</p><p>Padding keeps this captured page representative of a fetched document and exercises the same HTML normalization path used in production.</p></body></html>
diff --git a/tests/fixtures/landscape/register.json b/tests/fixtures/landscape/register.json
new file mode 100644
index 0000000..9b5bfa5
--- /dev/null
+++ b/tests/fixtures/landscape/register.json
@@ -0,0 +1,42 @@
+{
+  "contract_version": "uh.landscape-register.test",
+  "generated": "2026-09-15",
+  "rows": [
+    {
+      "system": "Verified Tool",
+      "build_item": "V",
+      "source_url": "https://fixtures.test/verified",
+      "quote": "A durable worker register supports monthly freshness checks for every captured source.",
+      "date_checked": "2026-09-15",
+      "fetch_status": "fetched",
+      "coordinator_check": "verified"
+    },
+    {
+      "system": "Drifted Tool",
+      "build_item": "D",
+      "source_url": "https://fixtures.test/drifted",
+      "quote": "A durable worker register supports monthly freshness checks for every captured source.",
+      "date_checked": "2026-09-15",
+      "fetch_status": "fetched",
+      "coordinator_check": "verified"
+    },
+    {
+      "system": "Unreachable Tool",
+      "build_item": "U",
+      "source_url": "https://fixtures.test/unreachable",
+      "quote": "A durable worker register supports monthly freshness checks for every captured source.",
+      "date_checked": "2026-09-15",
+      "fetch_status": "fetched",
+      "coordinator_check": "unverified"
+    },
+    {
+      "system": "Guide Tool",
+      "build_item": "G",
+      "source_url": "orca://skills/test",
+      "source_kind": "installed_cli_guide",
+      "quote": "A durable worker register supports monthly freshness checks for every captured source.",
+      "date_checked": "2026-09-15",
+      "coordinator_check": "not_applicable_local_guide"
+    }
+  ]
+}
diff --git a/tests/fixtures/runtime-events/README.md b/tests/fixtures/runtime-events/README.md
new file mode 100644
index 0000000..a496565
--- /dev/null
+++ b/tests/fixtures/runtime-events/README.md
@@ -0,0 +1,25 @@
+# Native runtime event fixtures
+
+Excerpts of real native event streams, reduced to structure. Event order, event
+types, tool names, call ids, error flags, usage counters and route fields are
+kept. Text is replaced with `x`, commands keep only their executable name,
+paths are relative to the worker root or `/outside/path`, ids are renumbered and
+timestamps are rebased. Streaming delta events are dropped.
+
+| File | Runtime | What it shows |
+|---|---|---|
+| `command-code-healthy.ndjson` | Command Code | A run that reads, edits, runs tests and finishes. Tool events are keyed by `toolCallId`; arguments are under `input` (`paths`, `file_path`, `pattern`, `command`). |
+| `command-code-denied-retries.ndjson` | Command Code | A run whose writes are denied by the guard hook (`tool_hooks`, `tool_hook_blocked`) and retried by other routes. |
+| `command-code-repeated-shell-failure.ndjson` | Command Code | Three identical failing `shell_command` calls. The `tool_completed` result text opens with the literal `Exit code: 1` line Command Code emits instead of an error field. |
+| `command-code-shell-exit-code-in-stdout.ndjson` | Command Code | A succeeding `shell_command` whose stdout mentions `Exit code` in a later line, which must not read as a failure. |
+| `command-code-usage.ndjson` | Command Code | A run whose every model call reports usage on `model_request_end` and the same usage object again on its matching `turn_end` (sums must not double count). Three calls, one turn each; the final `result` event carries no price, so the run's cost is only knowable from an operator price table. |
+| `command-code-native-turn-cap.ndjson` | Command Code | The model emits a final assistant message, then the runtime's own turn cap ends the run: the terminal `result` carries `stopReason: "max_turns"` (and the matching `subtype: "error_max_turns"`) with `num_turns: 2`. |
+| `oh-my-pi-healthy.ndjson` | oh-my-pi | A run using `tool_execution_start` / `tool_execution_end` with arguments under `args`. |
+
+The literal `Exit code: <n>` lines of Command Code shell results are kept
+verbatim in the fixtures that exist to exercise them; all other text stays
+sanitized as described above. The `command-code-native-turn-cap` fixture keeps
+its final-message sentinel verbatim for the same reason.
+
+Use these instead of hand-written event shapes when testing anything that reads
+native events.
diff --git a/tests/fixtures/runtime-events/command-code-denied-retries.ndjson b/tests/fixtures/runtime-events/command-code-denied-retries.ndjson
new file mode 100644
index 0000000..7780ec9
--- /dev/null
+++ b/tests/fixtures/runtime-events/command-code-denied-retries.ndjson
@@ -0,0 +1,200 @@
+{"type":"run_start","timestamp":"2026-01-01T00:00:01.000Z"}
+{"type":"turn_start","turnNumber":1,"timestamp":"2026-01-01T00:00:02.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:00:03.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:04.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:05.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:00:06.000Z"}
+{"type":"tool_queued","toolCallId":"call-1","toolName":"read_file","input":{"file_path":"/outside/path"},"timestamp":"2026-01-01T00:00:07.000Z"}
+{"type":"tool_queued","toolCallId":"call-2","toolName":"read_file","input":{"file_path":"/outside/path"},"timestamp":"2026-01-01T00:00:08.000Z"}
+{"type":"tool_queued","toolCallId":"call-3","toolName":"read_file","input":{"file_path":"/outside/path"},"timestamp":"2026-01-01T00:00:09.000Z"}
+{"type":"tool_running","toolCallId":"call-3","toolName":"read_file","timestamp":"2026-01-01T00:00:10.000Z"}
+{"type":"tool_running","toolCallId":"call-2","toolName":"read_file","timestamp":"2026-01-01T00:00:11.000Z"}
+{"type":"tool_running","toolCallId":"call-1","toolName":"read_file","timestamp":"2026-01-01T00:00:12.000Z"}
+{"type":"tool_completed","toolCallId":"call-1","toolName":"read_file","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:13.000Z"}
+{"type":"tool_completed","toolCallId":"call-2","toolName":"read_file","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:14.000Z"}
+{"type":"tool_completed","toolCallId":"call-3","toolName":"read_file","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:15.000Z"}
+{"type":"turn_end","turnNumber":1,"timestamp":"2026-01-01T00:00:16.000Z"}
+{"type":"turn_start","turnNumber":2,"timestamp":"2026-01-01T00:00:17.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:00:18.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:19.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:20.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:00:21.000Z"}
+{"type":"tool_queued","toolCallId":"call-4","toolName":"grep","input":{"pattern":"x","path":"/outside/path","output_mode":"x"},"timestamp":"2026-01-01T00:00:22.000Z"}
+{"type":"tool_queued","toolCallId":"call-5","toolName":"grep","input":{"pattern":"x","path":"/outside/path","output_mode":"x"},"timestamp":"2026-01-01T00:00:23.000Z"}
+{"type":"tool_queued","toolCallId":"call-6","toolName":"grep","input":{"pattern":"x","path":"/outside/path","output_mode":"x"},"timestamp":"2026-01-01T00:00:24.000Z"}
+{"type":"tool_running","toolCallId":"call-6","toolName":"grep","timestamp":"2026-01-01T00:00:25.000Z"}
+{"type":"tool_running","toolCallId":"call-5","toolName":"grep","timestamp":"2026-01-01T00:00:26.000Z"}
+{"type":"tool_running","toolCallId":"call-4","toolName":"grep","timestamp":"2026-01-01T00:00:27.000Z"}
+{"type":"tool_completed","toolCallId":"call-4","toolName":"grep","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:28.000Z"}
+{"type":"tool_completed","toolCallId":"call-5","toolName":"grep","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:29.000Z"}
+{"type":"tool_completed","toolCallId":"call-6","toolName":"grep","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:30.000Z"}
+{"type":"turn_end","turnNumber":2,"timestamp":"2026-01-01T00:00:31.000Z"}
+{"type":"turn_start","turnNumber":3,"timestamp":"2026-01-01T00:00:32.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:00:33.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:34.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:35.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:00:36.000Z"}
+{"type":"tool_queued","toolCallId":"call-7","toolName":"edit_file","input":{"file_path":"/outside/path","old_string":"x","new_string":"x"},"timestamp":"2026-01-01T00:00:37.000Z"}
+{"type":"tool_hooks","toolCallId":"call-7","toolName":"edit_file","timestamp":"2026-01-01T00:00:38.000Z"}
+{"type":"tool_hook_blocked","toolCallId":"call-7","toolName":"edit_file","timestamp":"2026-01-01T00:00:39.000Z"}
+{"type":"turn_end","turnNumber":3,"timestamp":"2026-01-01T00:00:40.000Z"}
+{"type":"turn_start","turnNumber":4,"timestamp":"2026-01-01T00:00:41.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:00:42.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:43.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:44.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:00:45.000Z"}
+{"type":"tool_queued","toolCallId":"call-8","toolName":"shell_command","input":{"command":"cd x","description":"x"},"timestamp":"2026-01-01T00:00:46.000Z"}
+{"type":"tool_running","toolCallId":"call-8","toolName":"shell_command","timestamp":"2026-01-01T00:00:47.000Z"}
+{"type":"tool_completed","toolCallId":"call-8","toolName":"shell_command","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:48.000Z"}
+{"type":"turn_end","turnNumber":4,"timestamp":"2026-01-01T00:00:49.000Z"}
+{"type":"turn_start","turnNumber":5,"timestamp":"2026-01-01T00:00:50.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:00:51.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:52.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:00:53.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:00:54.000Z"}
+{"type":"tool_queued","toolCallId":"call-9","toolName":"read_file","input":{"file_path":"/outside/path","offset":1,"limit":5},"timestamp":"2026-01-01T00:00:55.000Z"}
+{"type":"tool_running","toolCallId":"call-9","toolName":"read_file","timestamp":"2026-01-01T00:00:56.000Z"}
+{"type":"tool_completed","toolCallId":"call-9","toolName":"read_file","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:00:57.000Z"}
+{"type":"turn_end","turnNumber":5,"timestamp":"2026-01-01T00:00:58.000Z"}
+{"type":"turn_start","turnNumber":6,"timestamp":"2026-01-01T00:00:59.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:00.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:01.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:02.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:03.000Z"}
+{"type":"tool_queued","toolCallId":"call-10","toolName":"edit_file","input":{"file_path":"/outside/path","old_string":"x","new_string":"x"},"timestamp":"2026-01-01T00:01:04.000Z"}
+{"type":"tool_hooks","toolCallId":"call-10","toolName":"edit_file","timestamp":"2026-01-01T00:01:05.000Z"}
+{"type":"tool_hook_blocked","toolCallId":"call-10","toolName":"edit_file","timestamp":"2026-01-01T00:01:06.000Z"}
+{"type":"turn_end","turnNumber":6,"timestamp":"2026-01-01T00:01:07.000Z"}
+{"type":"turn_start","turnNumber":7,"timestamp":"2026-01-01T00:01:08.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:09.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:10.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:11.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:12.000Z"}
+{"type":"tool_queued","toolCallId":"call-11","toolName":"shell_command","input":{"command":"cd x","description":"x"},"timestamp":"2026-01-01T00:01:13.000Z"}
+{"type":"tool_hooks","toolCallId":"call-11","toolName":"shell_command","timestamp":"2026-01-01T00:01:14.000Z"}
+{"type":"tool_hook_blocked","toolCallId":"call-11","toolName":"shell_command","timestamp":"2026-01-01T00:01:15.000Z"}
+{"type":"turn_end","turnNumber":7,"timestamp":"2026-01-01T00:01:16.000Z"}
+{"type":"turn_start","turnNumber":8,"timestamp":"2026-01-01T00:01:17.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:18.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:19.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:20.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:21.000Z"}
+{"type":"tool_queued","toolCallId":"call-12","toolName":"read_file","input":{"file_path":"/outside/path"},"timestamp":"2026-01-01T00:01:22.000Z"}
+{"type":"tool_running","toolCallId":"call-12","toolName":"read_file","timestamp":"2026-01-01T00:01:23.000Z"}
+{"type":"tool_completed","toolCallId":"call-12","toolName":"read_file","deferred":false,"result":[{"type":"text","text":"x"}],"timestamp":"2026-01-01T00:01:24.000Z"}
+{"type":"turn_end","turnNumber":8,"timestamp":"2026-01-01T00:01:25.000Z"}
+{"type":"turn_start","turnNumber":9,"timestamp":"2026-01-01T00:01:26.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:27.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:28.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:29.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:30.000Z"}
+{"type":"tool_queued","toolCallId":"call-13","toolName":"write_file","input":{"file_path":"/outside/path","content":"x"},"timestamp":"2026-01-01T00:01:31.000Z"}
+{"type":"tool_hooks","toolCallId":"call-13","toolName":"write_file","timestamp":"2026-01-01T00:01:32.000Z"}
+{"type":"tool_hook_blocked","toolCallId":"call-13","toolName":"write_file","timestamp":"2026-01-01T00:01:33.000Z"}
+{"type":"turn_end","turnNumber":9,"timestamp":"2026-01-01T00:01:34.000Z"}
+{"type":"turn_start","turnNumber":10,"timestamp":"2026-01-01T00:01:35.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:36.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:37.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:38.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:39.000Z"}
+{"type":"tool_queued","toolCallId":"call-14","toolName":"write_file","input":{"file_path":"/outside/path","content":"x"},"timestamp":"2026-01-01T00:01:40.000Z"}
+{"type":"tool_hooks","toolCallId":"call-14","toolName":"write_file","timestamp":"2026-01-01T00:01:41.000Z"}
+{"type":"tool_hook_blocked","toolCallId":"call-14","toolName":"write_file","timestamp":"2026-01-01T00:01:42.000Z"}
+{"type":"turn_end","turnNumber":10,"timestamp":"2026-01-01T00:01:43.000Z"}
+{"type":"turn_start","turnNumber":11,"timestamp":"2026-01-01T00:01:44.000Z"}
+{"type":"message_start","timestamp":"2026-01-01T00:01:45.000Z"}
+{"type":"model_request_start","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:46.000Z"}
+{"type":"model_request_end","model":"xiaomi/mimo-v2.5","timestamp":"2026-01-01T00:01:47.000Z"}
+{"type":"message_end","timestamp":"2026-01-01T00:01:48.000Z"}
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diff --git a/tests/fixtures/runtime-events/command-code-healthy.ndjson b/tests/fixtures/runtime-events/command-code-healthy.ndjson
new file mode 100644
index 0000000..db23104
--- /dev/null
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new file mode 100644
index 0000000..3ee2940
--- /dev/null
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index 0000000..2da4390
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new file mode 100644
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new file mode 100644
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diff --git a/tests/fleet-policy.test.ts b/tests/fleet-policy.test.ts
new file mode 100644
index 0000000..f13ff74
--- /dev/null
+++ b/tests/fleet-policy.test.ts
@@ -0,0 +1,95 @@
+import { afterAll, afterEach, beforeEach, describe, expect, test } from "vitest";
+import { mkdtempSync } from "node:fs";
+import { mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { initializeHarness } from "../src/harness/init.js";
+import { assertFleetAdmission, decideFleetAdmission } from "../src/harness/fleet-policy.js";
+import { validateProject } from "../src/schema/project.js";
+
+const ROOT = mkdtempSync(join(tmpdir(), "uh-test-fleet-policy-"));
+const LUNA = "openai-codex/gpt-5.6-luna";
+const fleet = { routes: [
+  { adapter: "oh-my-pi", model: LUNA, roles: ["worker" as const] },
+  { adapter: "command-code", model: "z-ai/glm-5.3-flash", roles: ["orchestrator" as const, "worker" as const] },
+] };
+
+describe("fleet admission decision", () => {
+  test("no fleet policy admits everything", () => {
+    expect(decideFleetAdmission(undefined, { adapter: "codex", model: undefined, role: "worker" })).toBeUndefined();
+  });
+  test("an authorized adapter, model and role is admitted", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: LUNA, role: "worker" })).toBeUndefined();
+    expect(decideFleetAdmission(fleet, { adapter: "command-code", model: "z-ai/glm-5.3-flash", role: "orchestrator" })).toBeUndefined();
+  });
+  test("an unassigned model is refused, because the runtime would pick its own default", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: undefined, role: "worker" })).toMatch(/no assigned model/);
+  });
+  test("a model outside the fleet is refused and named", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: "google-antigravity/gemini-3.7-flash", role: "worker" })).toMatch(/google-antigravity\/gemini-3\.7-flash/);
+  });
+  test("an authorized model on the wrong adapter is refused", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "codex", model: LUNA, role: "worker" })).toMatch(/codex/);
+  });
+  test("a worker-only model cannot be an orchestrator", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: LUNA, role: "orchestrator" })).toMatch(/orchestrator/);
+  });
+  test("model and adapter identifiers are compared case-insensitively", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: LUNA.toUpperCase(), role: "worker" })).toBeUndefined();
+    expect(decideFleetAdmission(fleet, { adapter: "OH-MY-PI", model: LUNA.toUpperCase(), role: "worker" })).toBeUndefined();
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: "GPT-5.6-LUNA", role: "worker" })).toBeUndefined();
+  });
+  test("a model that differs beyond case and provider prefix is still refused", () => {
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: "openai-codex/gpt-5.6", role: "worker" })).toMatch(/gpt-5\.6/);
+    expect(decideFleetAdmission(fleet, { adapter: "oh-my-pi", model: "google-antigravity/gemini-3.8-flash", role: "worker" })).toMatch(/gemini-3\.8-flash/);
+  });
+});
+
+describe("project fleet schema", () => {
+  const base = { schema_version: "uh.project.v0", id: "p", name: "p", root_path: ".", created_at: "2026-09-21T00:00:00.000Z" };
+  test("roles default to worker and unknown keys are rejected", () => {
+    const project = validateProject({ ...base, fleet: { routes: [{ adapter: "oh-my-pi", model: LUNA }] } });
+    expect(project.fleet?.routes[0].roles).toEqual(["worker"]);
+    expect(() => validateProject({ ...base, fleet: { routes: [{ adapter: "oh-my-pi", model: LUNA, rolez: [] }] } })).toThrow();
+    expect(() => validateProject({ ...base, fleet: { routes: [] } })).toThrow();
+  });
+});
+
+describe("fleet admission from disk", () => {
+  async function mission(id: string, extra = ""): Promise<string> {
+    const dir = join(ROOT, ".harness", "missions", id);
+    await mkdir(dir, { recursive: true });
+    const file = join(dir, "mission.yaml");
+    await writeFile(file, `schema_version: uh.mission.v0\nid: ${id}\nname: m\nworkflow_profile: research-docs\nverification:\n  checks: []\n${extra}`, "utf-8");
+    return file;
+  }
+  async function setFleet(): Promise<void> {
+    const file = join(ROOT, ".harness", "project.yaml");
+    await writeFile(file, `${await readFile(file, "utf-8")}\nfleet:\n  routes:\n    - adapter: oh-my-pi\n      model: ${LUNA}\n`, "utf-8");
+  }
+  beforeEach(async () => { await rm(ROOT, { recursive: true, force: true }); await mkdir(ROOT, { recursive: true }); await initializeHarness(ROOT); });
+  afterEach(() => rm(ROOT, { recursive: true, force: true }));
+  afterAll(() => rm(ROOT, { recursive: true, force: true }));
+
+  test("a project without a fleet block admits any run", async () => {
+    await expect(assertFleetAdmission(ROOT, await mission("open"), "oh-my-pi")).resolves.toBeUndefined();
+  });
+  test("the mission model is admitted and CLI overrides are judged in its place", async () => {
+    await setFleet();
+    const file = await mission("pinned", `runtime_config_overrides:\n  model: ${LUNA}\n`);
+    await expect(assertFleetAdmission(ROOT, file, "oh-my-pi")).resolves.toBeUndefined();
+    await expect(assertFleetAdmission(ROOT, file, "oh-my-pi", { model: "anthropic/claude-fable-5" })).rejects.toThrow(/Fleet policy refuses.*anthropic\/claude-fable-5/);
+  });
+  test("a mission that assigns no model is refused under a fleet policy", async () => {
+    await setFleet();
+    await expect(assertFleetAdmission(ROOT, await mission("unassigned"), "oh-my-pi")).rejects.toThrow(/no assigned model/);
+  });
+  test("a model authorized only as a worker is refused as an orchestrator on command-code", async () => {
+    const file = join(ROOT, ".harness", "project.yaml");
+    await writeFile(file, `${await readFile(file, "utf-8")}\nfleet:\n  routes:\n    - adapter: command-code\n      model: z-ai/glm-5.3-flash\n      roles:\n        - worker\n`, "utf-8");
+    const workerOnly = await mission("cmdc-worker-only", "runtime_config_overrides:\n  model: z-ai/glm-5.3-flash\n  role: worker\n");
+    await expect(assertFleetAdmission(ROOT, workerOnly, "command-code")).resolves.toBeUndefined();
+    const asOrchestrator = await mission("cmdc-as-orchestrator", "runtime_config_overrides:\n  model: z-ai/glm-5.3-flash\n  role: orchestrator\n");
+    await expect(assertFleetAdmission(ROOT, asOrchestrator, "command-code")).rejects.toThrow(/orchestrator/);
+  });
+});
diff --git a/tests/hermes-proxy.test.ts b/tests/hermes-proxy.test.ts
index 1aef782..f998a5c 100644
--- a/tests/hermes-proxy.test.ts
+++ b/tests/hermes-proxy.test.ts
@@ -1,4 +1,4 @@
-import { test, expect, describe } from "vitest";
+import { test, expect, describe, afterAll } from "vitest";
 import { validateAdapter } from "../src/schema/adapter.js";
 import {
   HermesProxyRuntimeConfigSchema,
@@ -289,7 +289,9 @@ describe("hermes-proxy adapter-add template", () => {
 // ---------- UH-39 implementation suites ----------
 
 import * as http from "node:http";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, readFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { parse as parseYaml } from "yaml";
 import {
@@ -300,7 +302,7 @@ import {
 } from "../src/adapters/hermes-proxy.js";
 import { initializeHarness } from "../src/harness/init.js";
 
-const TEST_ROOT = "/tmp/uh-test-hermes-proxy";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-hermes-proxy-"));
 
 async function setupHarness(): Promise<{ missionPath: string }> {
   await rm(TEST_ROOT, { recursive: true, force: true });
@@ -341,6 +343,8 @@ objective: ""
 async function cleanup(): Promise<void> {
   await rm(TEST_ROOT, { recursive: true, force: true });
 }
+afterAll(cleanup);
+
 
 describe("parseHermesProxyStream", () => {
   test("concatenates delta content across multiple frames", () => {
@@ -716,7 +720,7 @@ describe("hermes-proxy promotion (UH-38)", () => {
 
   test("the adapter-add template also ships as status: active", async () => {
     const { addAdapter } = await import("../src/harness/adapter-add.js");
-    const tmp = "/tmp/uh-test-uh38-tpl";
+    const tmp = mkdtempSync(join(tmpdir(), "uh-test-uh38-tpl-"));
     await rm(tmp, { recursive: true, force: true });
     await mkdir(join(tmp, ".harness", "adapters"), { recursive: true });
     await addAdapter(tmp, "hermes-proxy");
diff --git a/tests/hermes.test.ts b/tests/hermes.test.ts
index fb58c87..23b88da 100644
--- a/tests/hermes.test.ts
+++ b/tests/hermes.test.ts
@@ -1,5 +1,7 @@
-import { test, expect, describe, beforeAll } from "vitest";
+import { test, expect, describe, beforeAll, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { parse } from "yaml";
 import { initializeHarness } from "../src/harness/init.js";
@@ -20,7 +22,7 @@ import {
 import { validateFile } from "../src/harness/validate.js";
 import { validateRuntimeResult } from "../src/schema/artifacts.js";
 
-const TEST_ROOT = "/tmp/uh-test-hermes";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-hermes-"));
 
 async function cleanup() {
   try {
@@ -103,6 +105,7 @@ test.beforeEach(async () => {
   await writeHermesManifest("hermes");
 });
 test.afterEach(cleanup);
+test.afterAll(cleanup);
 
 describe("planHermesRun", () => {
   test("emits the canonical hermes chat invocation for a harness mission", async () => {
@@ -229,10 +232,6 @@ describe("runHermes with injected runner", () => {
       runtime: "hermes",
       status: "passed",
       exit_code: 0,
-      prompt_path: ".harness/missions/captures/runs/test-captures/prompt.md",
-      stdout_path: ".harness/missions/captures/runs/test-captures/runtime.stdout.log",
-      stderr_path: ".harness/missions/captures/runs/test-captures/runtime.stderr.log",
-      diff_path: ".harness/missions/captures/runs/test-captures/diff.patch",
       errors: [],
     });
     expect(resultDoc.started_at).toBeTypeOf("string");
@@ -642,7 +641,3 @@ describe("collectHermesSession honcho opt-out", () => {
   });
 });
 
-// Smoke-check the default runner exports remain hooks tests can replace.
-test("defaultHermesRunner is exported and callable", () => {
-  expect(typeof defaultHermesRunner).toBe("function");
-});
diff --git a/tests/independent-review.test.ts b/tests/independent-review.test.ts
new file mode 100644
index 0000000..de2bbac
--- /dev/null
+++ b/tests/independent-review.test.ts
@@ -0,0 +1,215 @@
+import { test, expect, beforeEach, afterEach } from "vitest";
+import { mkdtemp, mkdir, readFile, writeFile, chmod, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { execFileSync } from "node:child_process";
+import { parse, stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { proposeMission } from "../src/harness/propose.js";
+import { prepareIndependentReview, collectIndependentReview, validateIndependentReviewReport } from "../src/harness/independent-review.js";
+import { IndependentReviewRequestSchema, IndependentReviewReportSchema } from "../src/schema/independent-review.js";
+import { createSandbox } from "../src/harness/sandbox.js";
+import { runCommandCode, planCommandCodeRun } from "../src/adapters/command-code.js";
+import { verifyMission } from "../src/harness/verify.js";
+
+async function fixture() {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-independent-review-"));
+  await initializeHarness(root);
+  await addAdapter(root, "command-code");
+  await writeFile(path.join(root, "answer.txt"), "42");
+  await proposeMission(root, { id: "source", title: "Answer", objective: "Produce answer 42", workflow: "research-docs",
+    expectedOutputs: ["answer.txt"], completionCriteria: ["Answer equals 42"] });
+  return root;
+}
+
+// The guard hook is published into a content-addressed cache from the build
+// output. Point both at a temporary fixture so the suite neither needs a real
+// build nor writes to the per-user cache.
+let snapshotRoot: string;
+let previousDist: string | undefined;
+let previousCache: string | undefined;
+
+beforeEach(async () => {
+  snapshotRoot = await mkdtemp(path.join(tmpdir(), "uh-independent-review-snapshot-"));
+  const hook = path.join(snapshotRoot, "dist", "extensions", "tool-guard", "cmdc-hook.js");
+  await mkdir(path.dirname(hook), { recursive: true });
+  await writeFile(hook, "export default function () {}\n");
+  previousDist = process.env.UH_HARNESS_DIST;
+  previousCache = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  process.env.UH_HARNESS_DIST = path.join(snapshotRoot, "dist");
+  process.env.UH_RUNTIME_SNAPSHOT_CACHE = path.join(snapshotRoot, "cache");
+});
+
+afterEach(async () => {
+  if (previousDist === undefined) delete process.env.UH_HARNESS_DIST; else process.env.UH_HARNESS_DIST = previousDist;
+  if (previousCache === undefined) delete process.env.UH_RUNTIME_SNAPSHOT_CACHE; else process.env.UH_RUNTIME_SNAPSHOT_CACHE = previousCache;
+  await rm(snapshotRoot, { recursive: true, force: true });
+});
+
+// The adapter spawns `cli_command` directly, so the fixture must be a real
+// executable on POSIX: shebang plus the exec bit set below.
+const reviewerFixture = `#!/usr/bin/env node
+const fs = require('node:fs');
+const path = require('node:path');
+const requestBase = '.harness/missions/review/';
+const reportPath = 'out/review-report.json';
+const request = JSON.parse(fs.readFileSync(requestBase + 'review-request.json', 'utf8'));
+const report = {schema_version:'uh.independent-review-report.v0', request_sha256: process.argv[process.argv.indexOf('-p')+1].match(/request_sha256 ([a-f0-9]{64})/)[1],
+ sources:request.sources.map(source => {
+  const output = source.files.find(file => file.kind === 'output');
+  const observed = fs.readFileSync(output.snapshot_path, 'utf8');
+  const passed = observed === '42';
+  return {mission_id:source.mission_id, claims_checked:[{claim:'Answer equals 42',source:output.snapshot_path,observed,verdict:passed?'supported':'contradicted'}],
+   acceptance:source.acceptance.map(item=>({id:item.id,status:passed?'passed':'failed',evidence:observed})),
+   checks:source.checks.map(item=>({id:item.id,status:passed?'passed':'failed',evidence:observed})), findings:[],
+   observations:[{title:'Captured output inspected in full',evidence:observed,relates_to:(source.acceptance[0]||source.checks[0]||{}).id,severity:'info'},
+    {title:'No claims outside the listed ids were verified',evidence:'Review covered only the listed ids',severity:'warn'}],
+   verdict:passed?'pass':'needs-remediation',reason:'Compared captured answer to 42'};
+ })};
+fs.mkdirSync(path.dirname(reportPath), {recursive:true});
+fs.writeFileSync(reportPath, JSON.stringify(report));
+console.log(JSON.stringify({type:'event',event:{type:'model_request_start',model:'offline-review-fixture'}}));
+console.log(JSON.stringify({type:'result',subtype:'success',finalText:'Review complete',stopReason:'end_turn'}));
+`;
+
+async function executeFixture(root: string) {
+  const executable = path.join(root, "reviewer.cjs");
+  await writeFile(executable, reviewerFixture);
+  await chmod(executable, 0o755);
+  const adapterPath = path.join(root, ".harness", "adapters", "command-code.yaml");
+  const adapter = parse(await readFile(adapterPath, "utf8"));
+  adapter.config.cli_command = executable;
+  adapter.config.runtime_config = { ...(adapter.config.runtime_config ?? {}), permission_mode: "yolo" };
+  execFileSync("git", ["init", "--quiet"], { cwd: root });
+  execFileSync("git", ["add", "--force", "."], { cwd: root });
+  execFileSync("git", ["-c", "user.name=UH Fixture", "-c", "user.email=fixture@example.invalid", "commit", "--quiet", "-m", "fixture"], { cwd: root });
+  await prepareIndependentReview(root, { id: "review", sources: [{ missionId: "source" }], runtime: "command-code", model: "offline-review-fixture" });
+  const reviewMissionPath = path.join(root, ".harness", "missions", "review", "mission.yaml");
+  const reviewMission = parse(await readFile(reviewMissionPath, "utf8")) as Record<string, unknown>;
+  expect(reviewMission.guard).toEqual({ write_roots: ["out"], deny_git_mutations: true, deny_package_installs: true, deny_network_clients: true });
+  const workspace = await createSandbox(root, { id: "review-workspace", missionId: "review", backend: "directory" });
+  workspace.path = path.resolve(root, workspace.path);
+  const workspaceAdapterPath = path.join(workspace.path, ".harness", "adapters", "command-code.yaml");
+  const workspaceAdapter = parse(await readFile(workspaceAdapterPath, "utf8")) as Record<string, unknown>;
+  const workspaceConfig = workspaceAdapter.config as Record<string, unknown>;
+  workspaceConfig.cli_command = executable;
+  workspaceConfig.runtime_config = { ...(workspaceConfig.runtime_config as Record<string, unknown> | undefined), permission_mode: "yolo" };
+  await writeFile(workspaceAdapterPath, stringify(workspaceAdapter));
+  const missionPath = path.join(workspace.path, ".harness", "missions", "review", "mission.yaml");
+  const run = await runCommandCode(workspace.path, missionPath, { artifactRoot: root });
+  expect(reviewMission.expected_outputs).toEqual({ files: ["out/review-report.json"] });
+  expect(run.result.status).toBe("passed");
+  return { workspace, missionPath };
+}
+
+test("a separate native review produces an advisory assessment, never owner approval", async () => {
+  const root = await fixture();
+  try {
+    const { workspace, missionPath } = await executeFixture(root);
+    const assessment = await collectIndependentReview(root, "review");
+    expect(assessment).toMatchObject({ recommendation: "pass", human_acceptance_required: true });
+    expect(assessment.observations).toEqual([
+      { source: "source", title: "Captured output inspected in full", evidence: "42", relates_to: "ac-1", severity: "info" },
+      { source: "source", title: "No claims outside the listed ids were verified", evidence: "Review covered only the listed ids", severity: "warn" },
+    ]);
+    expect((await verifyMission(root, "review")).status).toBe("passed");
+    expect(await readFile(path.join(root, "answer.txt"), "utf8")).toBe("42");
+    await expect(readFile(path.join(root, ".harness", "missions", "source", "promotion.yaml"))).rejects.toThrow();
+    await expect(planCommandCodeRun(root, path.join(root, ".harness", "missions", "review", "mission.yaml"))).rejects.toThrow();
+    await expect(planCommandCodeRun(workspace.path, missionPath, { artifactRoot: root, extraRuntimeConfigOverrides: { resume_session: "worker-session" } })).rejects.toThrow();
+    await expect(planCommandCodeRun(workspace.path, missionPath, { artifactRoot: root, extraRuntimeConfigOverrides: { model: "another-model" } })).rejects.toThrow();
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 30_000);
+
+test("an empty review report cannot satisfy the required output", async () => {
+  const root = await fixture();
+  try {
+    const { workspace } = await executeFixture(root);
+    await writeFile(path.join(workspace.path, "out", "review-report.json"), "");
+    expect((await verifyMission(root, "review")).status).toBe("failed");
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 30_000);
+
+test("a review cannot pass omitted criteria or missing and empty required outputs", async () => {
+  const root = await fixture();
+  try {
+    await writeFile(path.join(root, "answer.txt"), "");
+    const prepared = await prepareIndependentReview(root, { id: "review", sources: [{ missionId: "source" }], runtime: "command-code", model: "offline-review-fixture" });
+    const request = IndependentReviewRequestSchema.parse(JSON.parse(await readFile(prepared.requestPath, "utf8")));
+    const report = IndependentReviewReportSchema.parse({ schema_version: "uh.independent-review-report.v0", request_sha256: prepared.requestSha256,
+      sources: [{ mission_id: "source", claims_checked: [{ claim: "Answer equals 42", source: "answer.txt", observed: "No answer", verdict: "unverified" }],
+        acceptance: request.sources[0].acceptance.map(item => ({ id: item.id, status: "blocked", evidence: "No answer" })),
+        checks: [], findings: [], verdict: "pass", reason: "Unsupported recommendation" }] });
+    expect(() => validateIndependentReviewReport(request, report)).toThrow();
+    report.sources[0].verdict = "needs-remediation";
+    expect(validateIndependentReviewReport(request, report)).toBe("needs-remediation");
+    report.sources[0].acceptance = [];
+    expect(() => validateIndependentReviewReport(request, report)).toThrow();
+    await rm(path.join(root, "answer.txt"));
+    const missing = await prepareIndependentReview(root, { id: "missing", sources: [{ missionId: "source" }], runtime: "command-code", model: "offline-review-fixture" });
+    const missingRequest = IndependentReviewRequestSchema.parse(JSON.parse(await readFile(missing.requestPath, "utf8")));
+    report.sources[0].acceptance = missingRequest.sources[0].acceptance.map(item => ({ id: item.id, status: "passed", evidence: "False claim" }));
+    report.sources[0].claims_checked[0].verdict = "supported";
+    report.sources[0].verdict = "pass";
+    expect(() => validateIndependentReviewReport(missingRequest, report)).toThrow();
+    const originalPacket = await readFile(prepared.requestPath, "utf8");
+    await expect(prepareIndependentReview(root, { id: "review", sources: [{ missionId: "source" }], runtime: "command-code", model: "offline-review-fixture" })).rejects.toThrow();
+    expect(await readFile(prepared.requestPath, "utf8")).toBe(originalPacket);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a review packet pins exact ids for a source with no acceptance criteria", async () => {
+  const root = await fixture();
+  try {
+    await proposeMission(root, { id: "bare", title: "Bare", objective: "Produce answer 42", workflow: "research-docs",
+      expectedOutputs: ["answer.txt"], requiredChecks: [{ name: "answer-exists" }, { name: "answer-matches-42" }] });
+    const prepared = await prepareIndependentReview(root, { id: "review-bare", sources: [{ missionId: "bare" }], runtime: "command-code", model: "offline-review-fixture" });
+    const missionDir = path.join(root, ".harness", "missions", "review-bare");
+    const mission = parse(await readFile(path.join(missionDir, "mission.yaml"), "utf8")) as Record<string, unknown>;
+    expect(mission.objective).toContain("- bare: acceptance: [] exactly; add nothing; checks: check-1, check-2.");
+    expect(mission.objective).toContain("goes into observations, never into acceptance or checks");
+    expect(mission.guard).toEqual({ write_roots: ["out"], deny_git_mutations: true, deny_package_installs: true, deny_network_clients: true });
+    const schema = JSON.parse(await readFile(path.join(missionDir, "review-report.schema.json"), "utf8"));
+    const sourceProperties = schema.properties.sources.items.properties;
+    expect(sourceProperties.acceptance.maxItems).toBe(0);
+    expect(sourceProperties.acceptance.items.properties.id.enum).toEqual([]);
+    expect(sourceProperties.checks.maxItems).toBe(2);
+    expect(sourceProperties.checks.items.properties.id.enum).toEqual(["check-1", "check-2"]);
+    const request = IndependentReviewRequestSchema.parse(JSON.parse(await readFile(prepared.requestPath, "utf8")));
+    expect(request.sources[0].acceptance).toEqual([]);
+    expect(request.sources[0].checks.map(item => item.id)).toEqual(["check-1", "check-2"]);
+    const report = { schema_version: "uh.independent-review-report.v0", request_sha256: prepared.requestSha256,
+      sources: [{ mission_id: "bare", claims_checked: [{ claim: "Produce answer 42", source: "answer.txt", observed: "42", verdict: "supported" }],
+        acceptance: [] as Array<{ id: string; status: "passed"; evidence: string }>,
+        checks: [{ id: "check-1", status: "passed", evidence: "answer.txt exists" }, { id: "check-2", status: "passed", evidence: "answer.txt reads 42" }],
+        findings: [], verdict: "pass", reason: "Both required checks hold against the captured output" }] };
+    const invented = IndependentReviewReportSchema.parse({ ...report,
+      sources: [{ ...report.sources[0], acceptance: [{ id: "ac-1", status: "passed", evidence: "invented criterion" }] }] });
+    expect(() => validateIndependentReviewReport(request, invented)).toThrow("Review must cover each acceptance criterion exactly once");
+    const withObservations = IndependentReviewReportSchema.parse({ ...report,
+      sources: [{ ...report.sources[0], observations: [
+        { title: "Snapshot matches the contract claim", evidence: "answer.txt", relates_to: "check-2", severity: "info" },
+        { title: "No claims outside the listed ids were verified", evidence: "Review covered only the listed ids" }] }] });
+    expect(validateIndependentReviewReport(request, withObservations)).toBe("pass");
+    expect(validateIndependentReviewReport(request, IndependentReviewReportSchema.parse(report))).toBe("pass");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("changed captured inputs and a removed review contract invalidate collection and verification", async () => {
+  const root = await fixture();
+  try {
+    const { workspace, missionPath } = await executeFixture(root);
+    const request = JSON.parse(await readFile(path.join(root, ".harness", "missions", "review", "review-request.json"), "utf8"));
+    const output = request.sources[0].files.find((file: { kind: string }) => file.kind === "output");
+    await writeFile(path.join(workspace.path, output.snapshot_path), "altered");
+    await expect(collectIndependentReview(root, "review")).rejects.toThrow();
+    expect((await verifyMission(root, "review")).status).toBe("failed");
+    const mission = parse(await readFile(missionPath, "utf8"));
+    delete mission.independent_review;
+    mission.sandbox.promotion_policy = "auto-on-verify";
+    await writeFile(missionPath, stringify(mission));
+    await expect(verifyMission(root, "review")).rejects.toThrow();
+    await expect(planCommandCodeRun(workspace.path, missionPath, { artifactRoot: root })).rejects.toThrow();
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 30_000);
diff --git a/tests/init.test.ts b/tests/init.test.ts
index 02855ae..db489c4 100644
--- a/tests/init.test.ts
+++ b/tests/init.test.ts
@@ -1,10 +1,11 @@
-import { test, expect, describe } from "vitest";
+import { test, expect, describe, afterAll } from "vitest";
 import { mkdir, rm, access, stat, readdir } from "node:fs/promises";
 import { initializeHarness } from "../src/harness/init.js";
-import { existsSync } from "node:fs";
+import { existsSync, mkdtempSync } from "node:fs";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 
-const TEST_ROOT = "/tmp/uh-test-init";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-init-"));
 
 async function cleanup() {
   try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
@@ -12,6 +13,7 @@ async function cleanup() {
 
 test.beforeEach(cleanup);
 test.afterEach(cleanup);
+test.afterAll(cleanup);
 
 describe("uh init", () => {
   test("creates .harness/project.yaml", async () => {
diff --git a/tests/kill.test.ts b/tests/kill.test.ts
new file mode 100644
index 0000000..a5f1f67
--- /dev/null
+++ b/tests/kill.test.ts
@@ -0,0 +1,828 @@
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { spawnSync } from "node:child_process";
+import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { fileURLToPath } from "node:url";
+import path from "node:path";
+import { parse, stringify } from "yaml";
+import { CanonicalTeamStateSchema, type CanonicalTeamState } from "../src/schema/team.js";
+import { RuntimeControlSchema } from "../src/schema/runtime-control.js";
+import {
+  liveRunsDir,
+  registerLiveRun,
+  type ProcessLister,
+} from "../src/harness/live-runs.js";
+import {
+  KillError,
+  formatKillReport,
+  killRuns,
+  resolveKillTargets,
+  runRootForRecord,
+  type ProcessKiller,
+} from "../src/harness/kill.js";
+
+/**
+ * `uh kill` — every process here is a fixture: the process lister and the
+ * killer are both injected, so no test can signal a real process and no test
+ * starts a real model runtime.
+ */
+
+const CLI = fileURLToPath(new URL("../src/cli.ts", import.meta.url));
+
+const NOW = Date.parse("2026-09-22T12:00:00.000Z");
+const iso = (milliseconds: number): string => new Date(milliseconds).toISOString();
+
+let ROOT: string;
+
+beforeEach(async () => {
+  ROOT = await mkdtemp(path.join(tmpdir(), "uh-kill-"));
+  await mkdir(path.join(ROOT, ".harness"), { recursive: true });
+  await writeFile(
+    path.join(ROOT, ".harness", "project.yaml"),
+    "schema_version: uh.project.v0\nname: kill fixture\n",
+    "utf-8",
+  );
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+/* ------------------------------------------------------------------ fixtures */
+
+/** pid -> ppid for the fake machine. */
+type World = { alive: Map<number, number> };
+
+function world(processes: Array<[number, number]>): World {
+  return { alive: new Map(processes) };
+}
+
+function lister(state: World): ProcessLister {
+  return async () =>
+    [...state.alive.entries()].map(([pid, ppid]) => ({
+      pid,
+      ppid,
+      name: "runtime.exe",
+      command: "runtime --json",
+    }));
+}
+
+/** Tree-kill semantics: `taskkill /T /F` and a POSIX group kill take the descendants. */
+function killer(
+  state: World,
+  calls: number[],
+  options: { removesTree?: boolean } = {},
+): ProcessKiller {
+  return async (pid: number) => {
+    calls.push(pid);
+    if (options.removesTree === false) return;
+    const doomed = new Set<number>([pid]);
+    let grew = true;
+    while (grew) {
+      grew = false;
+      for (const [child, parent] of [...state.alive.entries()]) {
+        if (!doomed.has(child) && doomed.has(parent)) { doomed.add(child); grew = true; }
+      }
+    }
+    for (const pidToRemove of doomed) state.alive.delete(pidToRemove);
+  };
+}
+
+interface SeedOptions {
+  missionId: string;
+  runId: string;
+  artifactRoot?: string;
+  controllerPid: number;
+  team?: { mission_id: string; role: string };
+  status?: string;
+  runtime?: string;
+  heartbeatMs?: number;
+  controlOverrides?: Record<string, unknown>;
+  /** Write runtime-session.yaml so a controller_lost receipt can be reconciled. */
+  session?: boolean;
+}
+
+/** Write a run's runtime-control.json and register it at the project root. */
+async function seedRun(options: SeedOptions): Promise<string> {
+  const artifactRoot = options.artifactRoot ?? ROOT;
+  const runDir = path.join(artifactRoot, ".harness", "missions", options.missionId, "runs", options.runId);
+  await mkdir(runDir, { recursive: true });
+  await writeFile(
+    path.join(runDir, "runtime-control.json"),
+    JSON.stringify({
+      schema_version: "uh.runtime-control.v0",
+      mission_id: options.missionId,
+      run_id: options.runId,
+      runtime: options.runtime ?? "oh-my-pi",
+      controller_pid: options.controllerPid,
+      started_at: iso(NOW - 60_000),
+      heartbeat_at: iso(options.heartbeatMs ?? NOW - 2_000),
+      status: options.status ?? "running",
+      turns: 4,
+      denials: 0,
+      inflight_tools: 1,
+      ...(options.session ? { session_id: "fixture-session" } : {}),
+      ...options.controlOverrides,
+    }),
+    "utf-8",
+  );
+  if (options.session) {
+    await writeFile(
+      path.join(runDir, "runtime-session.yaml"),
+      stringify({
+        schema_version: "uh.runtime-session.v0",
+        mission_id: options.missionId,
+        runtime: options.runtime ?? "oh-my-pi",
+        status: "running",
+      }),
+      "utf-8",
+    );
+    await writeFile(path.join(runDir, "runtime.stdout.log"), "partial transcript\n", "utf-8");
+    await writeFile(path.join(runDir, "runtime.stderr.log"), "", "utf-8");
+    await writeFile(path.join(runDir, "prompt.md"), "fixture prompt", "utf-8");
+  }
+  await registerLiveRun({
+    projectRoot: ROOT,
+    artifactRoot,
+    runId: options.runId,
+    missionId: options.missionId,
+    runtime: options.runtime ?? "oh-my-pi",
+    controllerPid: options.controllerPid,
+    startedAt: iso(NOW - 60_000),
+    ...(options.team ? { team: options.team } : {}),
+  });
+  return runDir;
+}
+
+const TEAM = "wave-rc-min";
+const PARENT_RUN = "20260922T090000Z-parent";
+
+function workerArtifactRoot(role: string): string {
+  return path.join(ROOT, ".harness", "missions", TEAM, "team", "artifacts", PARENT_RUN, "workers", role);
+}
+
+/** A team worker: its control file lives under the WORKER artifact root. */
+async function seedWorker(role: string, runId: string, controllerPid: number): Promise<string> {
+  return seedRun({
+    missionId: TEAM,
+    runId,
+    artifactRoot: workerArtifactRoot(role),
+    controllerPid,
+    team: { mission_id: TEAM, role },
+  });
+}
+
+async function seedTeamState(workers: Array<{ role: string; run_id: string }>): Promise<string> {
+  const state: CanonicalTeamState = {
+    schema_version: "uh.team-run.v0",
+    mission_id: TEAM,
+    run_id: PARENT_RUN,
+    status: "running",
+    started_at: iso(NOW - 120_000),
+    finished_at: null,
+    integration_report_path: `.harness/missions/${TEAM}/team/integration-report.md`,
+    verification_status: null,
+    leader: { role: "leader", adapter: "oh-my-pi", status: "queued" },
+    workers: workers.map((worker, index) => ({
+      id: `w${index + 1}`,
+      role: worker.role,
+      adapter: "oh-my-pi",
+      run_id: worker.run_id,
+      artifact_scope: `.harness/missions/${TEAM}/team/artifacts/${PARENT_RUN}/workers/${worker.role}`,
+      runtime_result_path: null,
+      status: "running",
+      completion: "complete",
+      started_at: iso(NOW - 120_000),
+      finished_at: null,
+    })),
+  };
+  const runDir = path.join(ROOT, ".harness", "missions", TEAM, "runs", PARENT_RUN);
+  await mkdir(runDir, { recursive: true });
+  const file = path.join(runDir, "team-state.json");
+  await writeFile(file, JSON.stringify(CanonicalTeamStateSchema.parse(state), null, 2), "utf-8");
+  return file;
+}
+
+async function readRegistryEntry(runId: string): Promise<Record<string, unknown>> {
+  return JSON.parse(await readFile(path.join(liveRunsDir(ROOT), `${runId}.json`), "utf-8")) as Record<string, unknown>;
+}
+
+async function readControl(runDir: string): Promise<Record<string, unknown>> {
+  return JSON.parse(await readFile(path.join(runDir, "runtime-control.json"), "utf-8")) as Record<string, unknown>;
+}
+
+/** What a real controller does when it reads the cancel request: settle, then exit. */
+async function settleControl(runDir: string, missionId: string, runId: string, status: string, stopCode: string): Promise<void> {
+  const control = RuntimeControlSchema.parse({
+    ...(await readControl(runDir)),
+    mission_id: missionId,
+    run_id: runId,
+    status,
+    stop_code: stopCode,
+    heartbeat_at: iso(NOW),
+    settlement_confirmed: true,
+  });
+  await writeFile(path.join(runDir, "runtime-control.json"), JSON.stringify(control), "utf-8");
+}
+
+/* ------------------------------------------------------------- target selection */
+
+describe("uh kill target resolution", () => {
+  test("a run id may be given as a unique prefix and needs no artifact root", async () => {
+    await seedRun({ missionId: "plain", runId: "20260922T101500Z-aa11aa", controllerPid: 4242 });
+    await seedRun({ missionId: "plain", runId: "20260922T101500Z-bb22bb", controllerPid: 4343 });
+
+    const targets = await resolveKillTargets(ROOT, { runId: "20260922T101500Z-aa" }, { now: NOW });
+    expect(targets.map((record) => record.run_id)).toEqual(["20260922T101500Z-aa11aa"]);
+  });
+
+  test("an ambiguous prefix is refused and names every match", async () => {
+    await seedRun({ missionId: "plain", runId: "20260922T101500Z-aa11aa", controllerPid: 4242 });
+    await seedRun({ missionId: "plain", runId: "20260922T101500Z-aa22bb", controllerPid: 4343 });
+
+    await expect(resolveKillTargets(ROOT, { runId: "20260922T101500Z-aa" }, { now: NOW }))
+      .rejects
+      .toThrowError(KillError);
+    await expect(resolveKillTargets(ROOT, { runId: "20260922T101500Z-aa" }, { now: NOW }))
+      .rejects
+      .toThrow(/20260922T101500Z-aa11aa/);
+  });
+
+  test("an unknown run id is refused instead of silently doing nothing", async () => {
+    await expect(resolveKillTargets(ROOT, { runId: "20260922T101500Z-never" }, { now: NOW }))
+      .rejects
+      .toThrow(/no run/);
+  });
+
+  test("role, mission, team and --all select through the registry", async () => {
+    await seedWorker("backend", "20260922T102000Z-w1aaaa", 5001);
+    await seedWorker("frontend", "20260922T102001Z-w2bbbb", 5002);
+    await seedRun({ missionId: "solo", runId: "20260922T102002Z-s1cccc", controllerPid: 5003 });
+
+    const state = world([[5001, 1], [5002, 1], [5003, 1]]);
+    const options = { listProcesses: lister(state), now: NOW };
+    expect((await resolveKillTargets(ROOT, { role: "backend" }, options)).map((r) => r.run_id))
+      .toEqual(["20260922T102000Z-w1aaaa"]);
+    expect((await resolveKillTargets(ROOT, { teamId: TEAM }, options)).map((r) => r.run_id).sort())
+      .toEqual(["20260922T102000Z-w1aaaa", "20260922T102001Z-w2bbbb"]);
+    expect((await resolveKillTargets(ROOT, { missionId: "solo" }, options)).map((r) => r.run_id))
+      .toEqual(["20260922T102002Z-s1cccc"]);
+    expect((await resolveKillTargets(ROOT, { all: true }, options))).toHaveLength(3);
+  });
+
+  test("--orphans selects only runs whose controller pid is gone", async () => {
+    await seedRun({ missionId: "plain", runId: "20260922T103000Z-o1aaaa", controllerPid: 6001 });
+    await seedRun({ missionId: "plain", runId: "20260922T103001Z-o2bbbb", controllerPid: 6002 });
+    const orphans = await resolveKillTargets(ROOT, { orphans: true }, {
+      listProcesses: lister(world([[6002, 1]])), now: NOW,
+    });
+    expect(orphans.map((record) => record.run_id)).toEqual(["20260922T103000Z-o1aaaa"]);
+  });
+
+  test("settled runs are never selected by a selector", async () => {
+    await seedRun({ missionId: "plain", runId: "20260922T103100Z-f1aaaa", controllerPid: 6101, status: "passed" });
+    await seedRun({ missionId: "plain", runId: "20260922T103101Z-f2bbbb", controllerPid: 6102 });
+    const targets = await resolveKillTargets(ROOT, { all: true }, {
+      listProcesses: lister(world([[6102, 1]])), now: NOW,
+    });
+    expect(targets.map((record) => record.run_id)).toEqual(["20260922T103101Z-f2bbbb"]);
+  });
+
+  test("no selector at all is a usage error", async () => {
+    await expect(killRuns(ROOT, {})).rejects.toThrowError(KillError);
+  });
+
+  test("a run's cancel root is its artifact root, read off the registry control path", async () => {
+    await seedWorker("backend", "20260922T103200Z-r1aaaa", 7001);
+    const [record] = await resolveKillTargets(ROOT, { role: "backend" }, { now: NOW });
+    expect(runRootForRecord(ROOT, record)).toBe(workerArtifactRoot("backend"));
+
+    await seedRun({ missionId: "plain", runId: "20260922T103201Z-r2bbbb", controllerPid: 7002 });
+    const [plain] = await resolveKillTargets(ROOT, { runId: "20260922T103201Z-r2bbbb" }, { now: NOW });
+    expect(runRootForRecord(ROOT, plain)).toBe(ROOT);
+  });
+});
+
+/* ---------------------------------------------------------------- live stops */
+
+describe("uh kill live runs", () => {
+  test("graceful: cancels at the run's own root, waits for its tree, and never signals a process", async () => {
+    const runId = "20260922T104000Z-g1aaaa";
+    const runDir = await seedWorker("backend", runId, 4242);
+    const state = world([[4242, 1], [4243, 4242], [4244, 4243]]);
+    const killed: number[] = [];
+    const cancelCalls: Array<{ root: string; mission: string; run: string }> = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 2_000,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async (root, mission, run) => {
+        cancelCalls.push({ root, mission, run });
+        await settleControl(runDir, mission, run, "cancelled", "cancelled");
+        for (const pid of [4242, 4243, 4244]) state.alive.delete(pid);
+        return { ok: true, status: "cancelled" };
+      },
+    });
+
+    expect(cancelCalls).toEqual([{ root: workerArtifactRoot("backend"), mission: TEAM, run: runId }]);
+    expect(killed).toEqual([]);
+    expect(report.entries).toHaveLength(1);
+    expect(report.entries[0]).toMatchObject({
+      run_id: runId,
+      outcome: "cancelled_gracefully",
+      team: { mission_id: TEAM, role: "backend" },
+      surviving_pids: [],
+    });
+    expect(report.exit_code).toBe(0);
+    expect(report.counts.cancelled_gracefully).toBe(1);
+
+    const entry = await readRegistryEntry(runId);
+    expect(entry).toMatchObject({ status: "cancelled", stop_code: "cancelled" });
+    expect(typeof entry.settled_at).toBe("string");
+    // Kill never rewrites a control file the controller settled for itself.
+    const control = await readControl(runDir);
+    expect(control.status).toBe("cancelled");
+    expect(control.stop_reason).toBeUndefined();
+  });
+
+  test("forced: escalates to a tree kill of the controller once the wait expires", async () => {
+    const runId = "20260922T104100Z-h1aaaa";
+    const runDir = await seedRun({ missionId: "plain", runId, controllerPid: 8001, heartbeatMs: NOW - 90_000 });
+    const state = world([[8001, 1], [8002, 8001]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 40,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      // A wedged controller: the cancel request never settles the run.
+      cancelRun: async () => ({ ok: false, status: "running" }),
+    });
+
+    expect(killed).toEqual([8001]);
+    expect(report.entries[0]).toMatchObject({
+      run_id: runId,
+      outcome: "force_killed",
+      tree_pids: [8001, 8002],
+      surviving_pids: [],
+    });
+    expect(state.alive.size).toBe(0);
+    expect(report.exit_code).toBe(0);
+    expect(report.counts.force_killed).toBe(1);
+    await expect(readRegistryEntry(runId)).resolves.toMatchObject({ status: "cancelled", stop_code: "cancelled" });
+    // The dead controller cannot settle its own record, so kill writes the receipt.
+    await expect(readControl(runDir)).resolves.toMatchObject({
+      status: "cancelled",
+      stop_code: "cancelled",
+      settlement_confirmed: true,
+    });
+  });
+
+  test("--force skips the polite cancel and goes straight to the tree", async () => {
+    const runId = "20260922T104200Z-h2aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 8101 });
+    const state = world([[8101, 1], [8102, 8101]]);
+    const killed: number[] = [];
+    let cancelled = 0;
+
+    const report = await killRuns(ROOT, {
+      runId,
+      force: true,
+      waitMs: 5_000,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async () => { cancelled += 1; return { ok: true, status: "cancelled" }; },
+    });
+
+    expect(cancelled).toBe(0);
+    expect(killed).toEqual([8101]);
+    expect(report.entries[0].outcome).toBe("force_killed");
+  });
+
+  test("a survivor is reported with its pids and fails the command", async () => {
+    const runId = "20260922T104300Z-i1aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 8201 });
+    const state = world([[8201, 1], [8202, 8201]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 20,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      // Nothing dies, not even under SIGKILL.
+      killProcess: killer(state, killed, { removesTree: false }),
+      cancelRun: async () => ({ ok: false, status: "running" }),
+    });
+
+    expect(report.entries[0]).toMatchObject({
+      run_id: runId,
+      outcome: "still_alive",
+      surviving_pids: [8201, 8202],
+    });
+    expect(report.exit_code).toBe(1);
+    expect(formatKillReport(report)).toContain("still_alive");
+    // A run that is not provably dead keeps its live registry entry.
+    await expect(readRegistryEntry(runId)).resolves.not.toHaveProperty("settled_at");
+  });
+
+  test("only processes inside the controller's own tree are ever signalled", async () => {
+    const runId = "20260922T104400Z-j1aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 9001 });
+    const state = world([
+      [9001, 1], [9002, 9001], [9003, 9002],
+      // Somebody else's tree, plus this test runner itself.
+      [process.pid, 1], [9101, process.pid], [9102, 4],
+    ]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 20,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed, { removesTree: false }),
+      cancelRun: async () => ({ ok: false, status: "running" }),
+    });
+
+    expect(killed).toEqual([9001]);
+    for (const pid of [process.pid, 9101, 9102]) expect(killed).not.toContain(pid);
+    expect(state.alive.has(process.pid)).toBe(true);
+    expect(state.alive.has(9101)).toBe(true);
+    expect(report.entries[0].outcome).toBe("still_alive");
+  });
+
+  test("a detached runtime that outlives its controller is killed by pid, not by guesswork", async () => {
+    const runId = "20260922T104500Z-j2aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 9201 });
+    const state = world([[9201, 1], [9202, 9201], [9301, 1]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 20,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      // The controller honours the cancel but its child does not.
+      cancelRun: async () => { state.alive.delete(9201); return { ok: true, status: "cancelled" }; },
+    });
+
+    expect(killed).toEqual([9202]);
+    expect(state.alive.has(9301)).toBe(true);
+    expect(report.entries[0]).toMatchObject({ outcome: "force_killed", surviving_pids: [] });
+  });
+
+  test("a cancel that throws still escalates to the forced kill", async () => {
+    const runId = "20260922T104600Z-j3aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 9401 });
+    const state = world([[9401, 1]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 20,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async () => { throw new Error("Runtime controller heartbeat is stale; cancellation is not confirmed"); },
+    });
+
+    expect(killed).toEqual([9401]);
+    expect(report.entries[0].outcome).toBe("force_killed");
+    expect(report.entries[0].detail).toContain("heartbeat is stale");
+  });
+
+  test("a selector that matches nothing is a no-op, not a failure", async () => {
+    const report = await killRuns(ROOT, {
+      all: true,
+      now: NOW,
+      listProcesses: lister(world([])),
+      killProcess: async () => { throw new Error("must not be called"); },
+    });
+    expect(report.entries).toEqual([]);
+    expect(report.exit_code).toBe(0);
+  });
+});
+
+/* -------------------------------------------------------------------- orphans */
+
+describe("uh kill orphans", () => {
+  test("an orphaned run is settled with stop_code controller_lost and no process is looked for", async () => {
+    const runId = "20260922T105000Z-k1aaaa";
+    const runDir = await seedRun({
+      missionId: "plain", runId, controllerPid: 999_999, session: true,
+    });
+    const killed: number[] = [];
+    let cancelCalls = 0;
+
+    const report = await killRuns(ROOT, {
+      runId,
+      now: NOW,
+      // The controller is gone; the machine lister must not even be consulted
+      // for a tree to kill, and nothing may be signalled.
+      listProcesses: lister(world([])),
+      killProcess: async (pid) => { killed.push(pid); },
+      cancelRun: async () => { cancelCalls += 1; return { ok: true, status: "cancelled" }; },
+    });
+
+    expect(cancelCalls).toBe(0);
+    expect(killed).toEqual([]);
+    expect(report.entries[0]).toMatchObject({
+      run_id: runId,
+      outcome: "orphan_settled",
+      stop_code: "controller_lost",
+      surviving_pids: [],
+    });
+    expect(report.exit_code).toBe(0);
+
+    // The canonical settlement ran through reconcileRuntimeSettlement.
+    const result = parse(await readFile(path.join(runDir, "runtime-result.yaml"), "utf-8")) as Record<string, unknown>;
+    expect(result.status).toBe("failed");
+    expect((await readControl(runDir))).toMatchObject({ status: "failed", stop_code: "controller_lost" });
+    expect((await readRegistryEntry(runId))).toMatchObject({ status: "failed", stop_code: "controller_lost" });
+  });
+
+  test("a guardian receipt that already exists is reconciled untouched", async () => {
+    const runId = "20260922T105100Z-k2aaaa";
+    const runDir = await seedRun({
+      missionId: "plain",
+      runId,
+      controllerPid: 999_998,
+      session: true,
+      status: "failed",
+      controlOverrides: { stop_code: "controller_lost", settlement_confirmed: true, stop_reason: "Controller exited before run settlement" },
+    });
+    const before = await readFile(path.join(runDir, "runtime-control.json"), "utf-8");
+
+    const report = await killRuns(ROOT, {
+      runId, now: NOW,
+      listProcesses: lister(world([])),
+      killProcess: async () => { throw new Error("must not be called"); },
+    });
+
+    expect(report.entries[0].outcome).toBe("orphan_settled");
+    expect(await readFile(path.join(runDir, "runtime-control.json"), "utf-8")).toBe(before);
+  });
+
+  test("--orphans settles every orphan at once and leaves live runs alone", async () => {
+    const deadOne = "20260922T105200Z-l1aaaa";
+    const deadTwo = "20260922T105201Z-l2bbbb";
+    await seedRun({ missionId: "plain", runId: deadOne, controllerPid: 999_997, session: true });
+    await seedRun({ missionId: "plain", runId: deadTwo, controllerPid: 999_996, session: true });
+    await seedRun({ missionId: "plain", runId: "20260922T105202Z-l3cccc", controllerPid: 9501 });
+    const state = world([[9501, 1]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      orphans: true,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async () => { throw new Error("must not be called"); },
+    });
+
+    expect(report.entries.map((entry) => entry.run_id).sort()).toEqual([deadOne, deadTwo]);
+    expect(report.entries.every((entry) => entry.outcome === "orphan_settled")).toBe(true);
+    expect(killed).toEqual([]);
+    expect(state.alive.has(9501)).toBe(true);
+    await expect(readRegistryEntry("20260922T105202Z-l3cccc")).resolves.not.toHaveProperty("settled_at");
+  });
+
+  test("an orphan with processes still parented to its dead controller is not written off", async () => {
+    const runId = "20260922T105300Z-l4dddd";
+    const runDir = await seedRun({ missionId: "plain", runId, controllerPid: 999_995, session: true });
+    // Windows keeps the stale ParentProcessId, so the runtime is still attributable.
+    const state = world([[9701, 999_995]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId, now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+    });
+
+    expect(killed).toEqual([]);
+    expect(report.entries[0]).toMatchObject({ outcome: "still_alive", surviving_pids: [999_995, 9701] });
+    expect(report.exit_code).toBe(1);
+    await expect(readRegistryEntry(runId)).resolves.not.toHaveProperty("settled_at");
+    expect((await readControl(runDir)).stop_code).toBeUndefined();
+
+    // --force closes the record anyway; the operator owns the leftover process.
+    const forced = await killRuns(ROOT, {
+      runId, force: true, now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+    });
+    expect(forced.entries[0]).toMatchObject({ outcome: "orphan_settled", stop_code: "controller_lost" });
+    expect(killed).toEqual([]);
+    expect(await readControl(runDir)).toMatchObject({ status: "failed", stop_code: "controller_lost" });
+  });
+});
+
+/* --------------------------------------------------------------- team cascade */
+
+describe("uh kill team cascade", () => {
+  test("workers are stopped first, then the shared team controller, then team-state is marked cancelled", async () => {
+    const workerOne = "20260922T110000Z-t1aaaa";
+    const workerTwo = "20260922T110001Z-t2bbbb";
+    const directoryOne = await seedWorker("backend", workerOne, 2000);
+    const directoryTwo = await seedWorker("frontend", workerTwo, 2000);
+    await seedTeamState([
+      { role: "backend", run_id: workerOne },
+      { role: "frontend", run_id: workerTwo },
+    ]);
+    // One controller process hosts both workers, each with its own runtime child.
+    const state = world([[2000, 1], [2001, 2000], [2002, 2000], [2003, 2000]]);
+    const killed: number[] = [];
+    const order: string[] = [];
+
+    const report = await killRuns(ROOT, {
+      teamId: TEAM,
+      waitMs: 200,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async (root, mission, run) => {
+        order.push(run);
+        // The controller cancels just this worker's runtime child, then keeps
+        // running so it can integrate — exactly the leader we must not let through.
+        if (run === workerOne) {
+          await settleControl(directoryOne, mission, run, "cancelled", "cancelled");
+          state.alive.delete(2001);
+        } else {
+          await settleControl(directoryTwo, mission, run, "cancelled", "cancelled");
+          state.alive.delete(2002);
+        }
+        return { ok: true, status: "cancelled" };
+      },
+    });
+
+    expect(order).toEqual([workerOne, workerTwo]);
+    expect(report.entries.map((entry) => [entry.kind, entry.run_id])).toEqual([
+      ["run", workerOne],
+      ["run", workerTwo],
+      ["team-controller", "controller:2000"],
+    ]);
+    expect(report.entries[0].outcome).toBe("cancelled_gracefully");
+    expect(report.entries[1].outcome).toBe("cancelled_gracefully");
+    expect(report.entries[2]).toMatchObject({ outcome: "force_killed", mission_id: TEAM });
+    expect(killed).toEqual([2000]);
+    expect(state.alive.size).toBe(0);
+
+    const statePath = report.teams[0].path;
+    expect(report.teams[0]).toMatchObject({ team_id: TEAM, run_id: PARENT_RUN, marked: true });
+    const teamState = CanonicalTeamStateSchema.parse(JSON.parse(await readFile(statePath, "utf-8"))) as CanonicalTeamState & {
+      admission_blocked_reason?: string;
+    };
+    expect(teamState.status).toBe("blocked");
+    expect(teamState.leader.status).toBe("blocked");
+    expect(teamState.workers.every((worker) => worker.status === "blocked" || worker.status === "failed")).toBe(true);
+    expect(teamState.admission_blocked_reason).toMatch(/cancel/i);
+    expect(teamState.workers.every((worker) => worker.blocked_reason === undefined || /cancel/i.test(worker.blocked_reason ?? ""))).toBe(true);
+  });
+
+  test("a worker killed on its own leaves the shared controller and its siblings running", async () => {
+    const workerOne = "20260922T110100Z-t3aaaa";
+    const workerTwo = "20260922T110101Z-t4bbbb";
+    const directoryOne = await seedWorker("backend", workerOne, 2000);
+    await seedWorker("frontend", workerTwo, 2000);
+    const state = world([[2000, 1], [2001, 2000], [2002, 2000]]);
+    const killed: number[] = [];
+
+    const report = await killRuns(ROOT, {
+      runId: workerOne,
+      waitMs: 200,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, killed),
+      cancelRun: async (root, mission, run) => {
+        await settleControl(directoryOne, mission, run, "cancelled", "cancelled");
+        state.alive.delete(2001);
+        return { ok: true, status: "cancelled" };
+      },
+    });
+
+    expect(report.entries).toHaveLength(1);
+    expect(report.entries[0].outcome).toBe("cancelled_gracefully");
+    expect(killed).toEqual([]);
+    expect(state.alive.has(2000)).toBe(true);
+    expect(state.alive.has(2002)).toBe(true);
+    expect(report.teams).toEqual([]);
+  });
+
+  test("--team with no live workers still reports nothing to do", async () => {
+    const report = await killRuns(ROOT, {
+      teamId: "no-such-team",
+      now: NOW,
+      listProcesses: lister(world([])),
+      killProcess: async () => { throw new Error("must not be called"); },
+    });
+    expect(report.entries).toEqual([]);
+    expect(report.exit_code).toBe(0);
+  });
+});
+
+/* ------------------------------------------------------------------ report shape */
+
+describe("uh kill report", () => {
+  test("the JSON report is a stable contract", async () => {
+    const runId = "20260922T111000Z-m1aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 3001 });
+    const state = world([[3001, 1]]);
+    const report = await killRuns(ROOT, {
+      runId,
+      waitMs: 20,
+      pollIntervalMs: 5,
+      now: NOW,
+      listProcesses: lister(state),
+      killProcess: killer(state, []),
+      cancelRun: async () => ({ ok: false, status: "running" }),
+    });
+    expect(report.schema_version).toBe("uh.kill.v0");
+    expect(report.project_root).toBe(ROOT);
+    expect(Object.keys(report.counts).sort()).toEqual([
+      "cancelled_gracefully", "error", "force_killed", "matched", "orphan_settled", "skipped_settled", "still_alive",
+    ]);
+    expect(report.exit_code).toBe(0);
+    expect(formatKillReport(report)).toContain(runId);
+    expect(formatKillReport(report)).toContain("force_killed");
+    expect(formatKillReport(report)).toContain("pids=3001");
+  });
+
+  test("a settled run is reported as skipped rather than killed", async () => {
+    const runId = "20260922T111100Z-m2aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 3101, status: "passed" });
+    const report = await killRuns(ROOT, {
+      runId,
+      now: NOW,
+      listProcesses: lister(world([[3101, 1]])),
+      killProcess: async () => { throw new Error("must not be called"); },
+    });
+    expect(report.entries[0].outcome).toBe("skipped_settled");
+    expect(report.exit_code).toBe(0);
+  });
+});
+
+/* --------------------------------------------------------------- real process lister */
+
+describe("uh kill default killer safety", () => {
+  test("the default killer refuses a non-pid before touching anything", async () => {
+    const { defaultProcessKiller } = await import("../src/harness/kill.js");
+    await expect(defaultProcessKiller(0)).rejects.toThrow(/pid/i);
+    await expect(defaultProcessKiller(-1)).rejects.toThrow(/pid/i);
+    await expect(defaultProcessKiller(Number.NaN)).rejects.toThrow(/pid/i);
+  });
+});
+
+/* ------------------------------------------------------------------ CLI contract */
+
+function runKill(args: string[]): { status: number | null; stdout: string; stderr: string } {
+  return spawnSync("bun", ["x", "tsx", CLI, ...args], {
+    encoding: "utf-8",
+    timeout: 90_000,
+    env: { ...process.env, UH_TELEMETRY: "", UH_POSTHOG_API_KEY: "" },
+  }) as { status: number | null; stdout: string; stderr: string };
+}
+
+describe("uh kill CLI", () => {
+  test("advertises the selectors in --help", async () => {
+    const help = runKill(["kill", "--help"]);
+    expect(help.status).toBe(0);
+    for (const flag of ["--role", "--mission", "--team", "--all", "--orphans", "--force", "--wait-ms", "--json"]) {
+      expect(help.stdout).toContain(flag);
+    }
+  }, 90_000);
+
+  test("settles an orphan from the project root and exits 0", async () => {
+    const runId = "20260922T112000Z-c1aaaa";
+    await seedRun({ missionId: "plain", runId, controllerPid: 2_147_483_646, session: true });
+
+    const killed = runKill(["kill", runId, "--root", ROOT, "--json"]);
+    expect(killed.status).toBe(0);
+    const report = JSON.parse(killed.stdout) as { entries: Array<{ run_id: string; outcome: string; stop_code?: string }> };
+    expect(report.entries[0]).toMatchObject({ run_id: runId, outcome: "orphan_settled", stop_code: "controller_lost" });
+    await expect(readRegistryEntry(runId)).resolves.toMatchObject({ status: "failed", stop_code: "controller_lost" });
+  }, 90_000);
+
+  test("refuses an unknown run id with exit 1", async () => {
+    const missing = runKill(["kill", "20260922T112100Z-none", "--root", ROOT]);
+    expect(missing.status).toBe(1);
+    expect(missing.stderr).toMatch(/no run/);
+  }, 90_000);
+});
diff --git a/tests/landscape-verifier.test.ts b/tests/landscape-verifier.test.ts
new file mode 100644
index 0000000..c33ef0c
--- /dev/null
+++ b/tests/landscape-verifier.test.ts
@@ -0,0 +1,95 @@
+import { createHash } from "node:crypto";
+import { execFileSync } from "node:child_process";
+import { mkdtempSync, readFileSync, rmSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { resolve } from "node:path";
+
+type RunResult = { status: number; stdout: string };
+
+const script = resolve(process.cwd(), "scripts/landscape/verify-register.mjs");
+const fixtureDir = resolve(process.cwd(), "tests/fixtures/landscape");
+const quote = "A durable worker register supports monthly freshness checks for every captured source.";
+
+function fixtureUrl(name: string): string {
+  return `https://fixtures.test/${name}`;
+}
+
+function runVerifier(registerPath: string, ...args: string[]): RunResult {
+  try {
+    return {
+      status: 0,
+      stdout: execFileSync(process.execPath, [script, "--register", registerPath, ...args], {
+        encoding: "utf8",
+      }),
+    };
+  } catch (error) {
+    const processError = error as NodeJS.ErrnoException & { status?: number; stdout?: Buffer | string };
+    return {
+      status: processError.status ?? -1,
+      stdout: processError.stdout?.toString() ?? "",
+    };
+  }
+}
+
+describe("landscape register verifier", () => {
+  let tempRoot: string;
+  const registerPath = resolve(process.cwd(), "tests/fixtures/landscape/register.json");
+
+  beforeEach(() => {
+    tempRoot = mkdtempSync(resolve(tmpdir(), "uh-landscape-"));
+  });
+
+  afterEach(() => rmSync(tempRoot, { recursive: true, force: true }));
+
+  it("classifies fixture rows, writes JSON, and reports the mixed exit code", () => {
+    const jsonPath = resolve(tempRoot, "result.json");
+    const run = runVerifier(
+      registerPath,
+      "--fixture-dir",
+      fixtureDir,
+      "--json",
+      jsonPath,
+      "--concurrency",
+      "2",
+    );
+
+    expect(run.status).toBe(1);
+    expect(run.stdout).toContain("verified Verified Tool https://fixtures.test/verified coverage=1.00");
+    expect(run.stdout).toContain("drifted Drifted Tool https://fixtures.test/drifted coverage=0.00");
+    expect(run.stdout).toContain("unreachable Unreachable Tool https://fixtures.test/unreachable coverage=0.00");
+    expect(run.stdout).toContain("unverifiable Guide Tool orca://skills/test coverage=0.00");
+    expect(run.stdout).toContain("landscape: verified 1 drifted 1 unreachable 1 unverifiable 1 of 4");
+
+    const result = JSON.parse(readFileSync(jsonPath, "utf8")) as {
+      rows: Array<{ system: string; state: string; coverage: number }>;
+      summary: { verified: number; drifted: number; unreachable: number; unverifiable: number; total: number };
+      exit_code: number;
+    };
+    expect(result.rows.map((row) => row.state)).toEqual(["verified", "drifted", "unreachable", "unverifiable"]);
+    expect(result.rows[0].coverage).toBe(1);
+    expect(result.summary).toEqual({ verified: 1, drifted: 1, unreachable: 1, unverifiable: 1, total: 4 });
+    expect(result.exit_code).toBe(1);
+  });
+
+  it("maps unreachable-only results to exit code 2", () => {
+    const run = runVerifier(registerPath, "--fixture-dir", fixtureDir, "--only", "unreachable");
+    expect(run.status).toBe(2);
+    expect(run.stdout).toContain("unreachable Unreachable Tool https://fixtures.test/unreachable coverage=0.00");
+    expect(run.stdout).toContain("landscape: verified 0 drifted 0 unreachable 1 unverifiable 0 of 1");
+  });
+
+  it("maps clean filtered results to exit code 0", () => {
+    const run = runVerifier(registerPath, "--fixture-dir", fixtureDir, "--only", "verified");
+    expect(run.status).toBe(0);
+    expect(run.stdout).toBe(
+      "verified Verified Tool https://fixtures.test/verified coverage=1.00\n" +
+        "landscape: verified 1 drifted 0 unreachable 0 unverifiable 0 of 1\n",
+    );
+  });
+});
+
+// Keep this helper in the test's fixture contract: fixture names are SHA-256
+// URL hashes, the same stable naming rule used by the verifier.
+expect(createHash("sha256").update(fixtureUrl("verified")).digest("hex")).toBe(
+  "97c69ab0c031e0268881792e8662741d4ab82111d3378205f7693ec08964dfea",
+);
diff --git a/tests/live-runs.test.ts b/tests/live-runs.test.ts
new file mode 100644
index 0000000..284dded
--- /dev/null
+++ b/tests/live-runs.test.ts
@@ -0,0 +1,454 @@
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { spawnSync } from "node:child_process";
+import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { fileURLToPath } from "node:url";
+import path from "node:path";
+import {
+  claimLiveRun,
+  discoverRuns,
+  formatLiveRuns,
+  isSettled,
+  liveRunCounts,
+  liveRunsDir,
+  liveRunsExitCode,
+  liveness,
+  listLiveRuns,
+  processChildren,
+  registerLiveRun,
+  settleLiveRun,
+  teamFromArtifactRoot,
+  type LiveRunRecord,
+  type NativeProcess,
+} from "../src/harness/live-runs.js";
+import { claimRuntimeAttempt } from "../src/harness/runtime-attempt.js";
+import type { MissionArtifactContext } from "../src/adapters/_artifact-context.js";
+
+const CLI = fileURLToPath(new URL("../src/cli.ts", import.meta.url));
+
+const NOW = Date.parse("2026-09-22T12:00:00.000Z");
+const iso = (milliseconds: number): string => new Date(milliseconds).toISOString();
+
+let ROOT: string;
+
+beforeEach(async () => {
+  ROOT = await mkdtemp(path.join(tmpdir(), "uh-live-runs-"));
+  await mkdir(path.join(ROOT, ".harness"), { recursive: true });
+  await writeFile(
+    path.join(ROOT, ".harness", "project.yaml"),
+    "schema_version: uh.project.v0\nname: live-runs fixture\n",
+    "utf-8",
+  );
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+/* ------------------------------------------------------------------ helpers */
+
+function artifactsFor(artifactRoot: string, missionId: string, runId: string): MissionArtifactContext {
+  const missionDir = path.join(artifactRoot, ".harness", "missions", missionId);
+  const runDir = path.join(missionDir, "runs", runId);
+  return {
+    missionDir,
+    runDir,
+    promptPath: path.join(runDir, "prompt.md"),
+    runtimeSessionPath: path.join(runDir, "runtime-session.yaml"),
+    eventsPath: path.join(runDir, "events.ndjson"),
+    stdoutPath: path.join(runDir, "runtime.stdout.log"),
+    stderrPath: path.join(runDir, "runtime.stderr.log"),
+    diffPath: path.join(runDir, "diff.patch"),
+    runtimeResultPath: path.join(runDir, "runtime-result.yaml"),
+    finalMessagePath: path.join(runDir, "runtime-final.txt"),
+  };
+}
+
+function controlPayload(
+  missionId: string,
+  runId: string,
+  overrides: Record<string, unknown> = {},
+): Record<string, unknown> {
+  return {
+    schema_version: "uh.runtime-control.v0",
+    mission_id: missionId,
+    run_id: runId,
+    runtime: "oh-my-pi",
+    controller_pid: 4242,
+    started_at: iso(NOW - 60_000),
+    heartbeat_at: iso(NOW - 2_000),
+    status: "running",
+    turns: 3,
+    denials: 1,
+    inflight_tools: 1,
+    ...overrides,
+  };
+}
+
+async function seedControl(
+  artifactRoot: string,
+  missionId: string,
+  runId: string,
+  overrides: Record<string, unknown> = {},
+): Promise<string> {
+  const runDir = path.join(artifactRoot, ".harness", "missions", missionId, "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  await writeFile(
+    path.join(runDir, "runtime-control.json"),
+    JSON.stringify(controlPayload(missionId, runId, overrides)),
+    "utf-8",
+  );
+  return runDir;
+}
+
+function processes(list: Array<Partial<NativeProcess> & { pid: number; ppid: number }>): NativeProcess[] {
+  return list.map((entry) => ({
+    pid: entry.pid,
+    ppid: entry.ppid,
+    name: entry.name ?? "node.exe",
+    command: entry.command ?? "node",
+  }));
+}
+
+async function readEntry(runId: string): Promise<Record<string, unknown>> {
+  return JSON.parse(await readFile(path.join(liveRunsDir(ROOT), `${runId}.json`), "utf-8")) as Record<string, unknown>;
+}
+
+function record(overrides: Partial<LiveRunRecord> = {}): LiveRunRecord {
+  return {
+    source: "registry",
+    run_id: "run",
+    mission_id: "mission",
+    runtime: "oh-my-pi",
+    artifact_root: ".",
+    control_path: ".harness/missions/mission/runs/run/runtime-control.json",
+    controller_pid: 4242,
+    started_at: iso(NOW - 60_000),
+    status: "running",
+    heartbeat_at: iso(NOW - 1_000),
+    ...overrides,
+  };
+}
+
+/* ----------------------------------------------------------------- registry */
+
+describe("live-run registry", () => {
+  test("claimRuntimeAttempt registers a plain run under the project root", async () => {
+    const runId = "20260922T100000Z-aaaaaa";
+    const artifacts = artifactsFor(ROOT, "plain", runId);
+    await mkdir(artifacts.runDir, { recursive: true });
+
+    await claimRuntimeAttempt(artifacts);
+
+    const entry = await readEntry(runId);
+    expect(entry).toMatchObject({
+      schema_version: "uh.live-run.v0",
+      run_id: runId,
+      mission_id: "plain",
+      runtime: "unknown",
+      artifact_root: ".",
+      control_path: `.harness/missions/plain/runs/${runId}/runtime-control.json`,
+    });
+    expect(entry.controller_pid).toBe(process.pid);
+    expect(entry.team).toBeUndefined();
+    expect(typeof entry.started_at).toBe("string");
+  });
+
+  test("a worker under a team artifact root registers with its team and role", async () => {
+    const runId = "20260922T100100Z-bbbbbb";
+    const artifactRoot = path.join(
+      ROOT, ".harness", "missions", "wave", "team", "artifacts", "parent-run", "workers", "backend",
+    );
+    const artifacts = artifactsFor(artifactRoot, "wave", runId);
+    await mkdir(artifacts.runDir, { recursive: true });
+
+    await claimRuntimeAttempt(artifacts);
+
+    const entry = await readEntry(runId);
+    expect(entry.team).toEqual({ mission_id: "wave", role: "backend" });
+    expect(entry.artifact_root).toBe(".harness/missions/wave/team/artifacts/parent-run/workers/backend");
+  });
+
+  test("claimLiveRun honours an explicit project root and derives team from the path", async () => {
+    const runId = "20260922T100150Z-bbbbb1";
+    const artifactRoot = path.join(ROOT, ".harness", "missions", "wave", "team", "artifacts", "p", "workers", "frontend");
+    const artifacts = artifactsFor(artifactRoot, "wave", runId);
+    await mkdir(artifacts.runDir, { recursive: true });
+    await claimLiveRun(artifacts, { projectRoot: ROOT, runtime: "codex", model: "gpt-5" });
+    const entry = await readEntry(runId);
+    expect(entry).toMatchObject({ runtime: "codex", model: "gpt-5", team: { mission_id: "wave", role: "frontend" } });
+  });
+
+  test("claimLiveRun is a no-op when no ancestor holds .harness/project.yaml", async () => {
+    const isolated = await mkdtemp(path.join(tmpdir(), "uh-live-runs-noroot-"));
+    try {
+      const runId = "20260922T100151Z-cccccc";
+      const artifacts = artifactsFor(isolated, "plain", runId);
+      await mkdir(artifacts.runDir, { recursive: true });
+      await claimLiveRun(artifacts);
+      await expect(readFile(path.join(isolated, ".harness", "live-runs", `${runId}.json`)))
+        .rejects.toMatchObject({ code: "ENOENT" });
+    } finally {
+      await rm(isolated, { recursive: true, force: true });
+    }
+  });
+
+  test("settleLiveRun stamps status, stop code, and settled_at", async () => {
+    const runId = "20260922T100200Z-dddddd";
+    await seedControl(ROOT, "plain", runId, { status: "running" });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "plain", runtime: "oh-my-pi" });
+
+    await settleLiveRun(ROOT, runId, { status: "failed", stop_code: "stall", settled_at: iso(NOW) });
+
+    const entry = await readEntry(runId);
+    expect(entry).toMatchObject({ status: "failed", stop_code: "stall", settled_at: iso(NOW) });
+  });
+
+  test("settleLiveRun is a no-op without a registry entry", async () => {
+    await expect(settleLiveRun(ROOT, "20260922T100201Z-eeeeee", { status: "failed" })).resolves.toBeUndefined();
+  });
+});
+
+/* ---------------------------------------------------------------- discovery */
+
+describe("discoverRuns", () => {
+  test("merges runtime-control facts and the events tail over the registry", async () => {
+    const runId = "20260922T100300Z-aaaaa1";
+    const runDir = await seedControl(ROOT, "plain", runId, {
+      runtime: "command-code",
+      controller_pid: 7777,
+      turns: 7,
+      denials: 2,
+      inflight_tools: 1,
+      session_id: "s-1",
+      peak_memory_bytes: 1234,
+      ready_at: iso(NOW - 30_000),
+      heartbeat_at: iso(NOW - 2_000),
+    });
+    await writeFile(path.join(runDir, "events.ndjson"), [
+      JSON.stringify({ type: "turn_start", timestamp: iso(NOW - 5_000) }),
+      JSON.stringify({ type: "tool_queued", toolName: "edit_file", timestamp: iso(NOW - 1_000) }),
+    ].join("\n") + "\n", "utf-8");
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "plain", runtime: "unknown" });
+
+    const records = await discoverRuns(ROOT, { now: NOW, persist: false });
+    const found = records.find((entry) => entry.run_id === runId)!;
+    expect(found.source).toBe("registry");
+    expect(found.runtime).toBe("command-code");
+    expect(found.controller_pid).toBe(7777);
+    expect(found.status).toBe("running");
+    expect(found.turns).toBe(7);
+    expect(found.denials).toBe(2);
+    expect(found.session_id).toBe("s-1");
+    expect(found.peak_memory_bytes).toBe(1234);
+    expect(found.last_tool).toBe("edit_file");
+    expect(found.last_event_at).toBe(iso(NOW - 1_000));
+  });
+
+  test("finds a pre-registry run only by the bounded scan", async () => {
+    const runId = "20260922T100400Z-aaaaa2";
+    await seedControl(ROOT, "legacy", runId, {});
+
+    const records = await discoverRuns(ROOT, { now: NOW, persist: false });
+    const found = records.find((entry) => entry.run_id === runId);
+    expect(found?.source).toBe("scan");
+    expect(found?.mission_id).toBe("legacy");
+    // Discovery alone must not allocate a registry entry.
+    await expect(readFile(path.join(liveRunsDir(ROOT), `${runId}.json`))).rejects.toMatchObject({ code: "ENOENT" });
+  });
+
+  test("hides settled runs unless includeSettled, and drops runs past the 24h window", async () => {
+    const recent = "20260922T100500Z-aaaaa3";
+    const ancient = "20260922T100501Z-aaaaa4";
+    await seedControl(ROOT, "plain", recent, { status: "passed", heartbeat_at: iso(NOW - 1_000) });
+    await seedControl(ROOT, "plain", ancient, { status: "failed", heartbeat_at: iso(NOW - 3 * 24 * 60 * 60 * 1000) });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId: recent, missionId: "plain", runtime: "oh-my-pi" });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId: ancient, missionId: "plain", runtime: "oh-my-pi" });
+
+    const liveOnly = await discoverRuns(ROOT, { now: NOW, persist: false });
+    expect(liveOnly.map((entry) => entry.run_id)).not.toContain(recent);
+    expect(liveOnly.map((entry) => entry.run_id)).not.toContain(ancient);
+
+    const all = await discoverRuns(ROOT, { now: NOW, includeSettled: true, persist: false });
+    const ids = all.map((entry) => entry.run_id);
+    expect(ids).toContain(recent);
+    expect(ids).not.toContain(ancient);
+  });
+
+  test("reconciles a terminal control fact back into the registry", async () => {
+    const runId = "20260922T100600Z-aaaaa5";
+    await seedControl(ROOT, "plain", runId, { status: "failed", stop_code: "timeout", heartbeat_at: iso(NOW - 1_000) });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "plain", runtime: "oh-my-pi" });
+
+    await discoverRuns(ROOT, { now: NOW });
+
+    const entry = await readEntry(runId);
+    expect(entry.status).toBe("failed");
+    expect(entry.stop_code).toBe("timeout");
+    expect(entry.settled_at).toBe(iso(NOW - 1_000));
+  });
+
+  test("reads only the last 64 KB of the events log", async () => {
+    const runId = "20260922T100700Z-aaaaa6";
+    const runDir = await seedControl(ROOT, "plain", runId, {});
+    const head = JSON.stringify({ type: "tool_queued", toolName: "ancient_tool", timestamp: iso(NOW - 600_000) });
+    const filler = ("\n" + JSON.stringify({ type: "message_delta", text: "x".repeat(64) })).repeat(3000);
+    await writeFile(path.join(runDir, "events.ndjson"), head + filler + "\n", "utf-8");
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "plain", runtime: "oh-my-pi" });
+
+    const records = await discoverRuns(ROOT, { now: NOW, persist: false });
+    const found = records.find((entry) => entry.run_id === runId)!;
+    expect(found.last_tool).toBeUndefined();
+    expect(found.last_event_at).toBeUndefined();
+  });
+
+  test("answers in under one second with 50 registry entries", async () => {
+    const runIds: string[] = [];
+    for (let index = 0; index < 50; index += 1) {
+      const runId = `20260922T10${String(index).padStart(2, "0")}00Z-${index.toString(16).padStart(6, "0")}`;
+      runIds.push(runId);
+      await seedControl(ROOT, "plain", runId, { controller_pid: 4242 });
+      await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "plain", runtime: "oh-my-pi" });
+    }
+
+    const started = Date.now();
+    const { records } = await listLiveRuns(ROOT, { processes: [], now: NOW, persist: false });
+    const elapsed = Date.now() - started;
+
+    expect(records).toHaveLength(50);
+    expect(elapsed).toBeLessThan(1000);
+  });
+});
+
+/* ----------------------------------------------------------------- liveness */
+
+describe("liveness", () => {
+  test("a running run with a live controller and fresh heartbeat is live", () => {
+    const alive = processes([{ pid: 4242, ppid: 1 }]);
+    expect(liveness(record(), alive, { now: NOW })).toBe("live");
+  });
+
+  test("a running run whose controller is gone is orphaned (the incident case)", () => {
+    expect(liveness(record(), [], { now: NOW })).toBe("orphaned");
+  });
+
+  test("a live controller with a heartbeat older than 2x the stall window is stale", () => {
+    const alive = processes([{ pid: 4242, ppid: 1 }]);
+    const stale = record({ heartbeat_at: iso(NOW - 200_000) });
+    expect(liveness(stale, alive, { now: NOW, stallWindowMs: 60_000 })).toBe("stale");
+    const fresh = record({ heartbeat_at: iso(NOW - 30_000) });
+    expect(liveness(fresh, alive, { now: NOW, stallWindowMs: 60_000 })).toBe("live");
+  });
+
+  test("a terminal run is settled regardless of its pid", () => {
+    const settled = record({ status: "passed", settled_at: iso(NOW - 1_000) });
+    expect(isSettled(settled)).toBe(true);
+    expect(liveness(settled, processes([{ pid: 4242, ppid: 1 }]), { now: NOW })).toBe("settled");
+  });
+
+  test("lists the native process tree under the controller", () => {
+    const list = processes([
+      { pid: 1, ppid: 0, name: "uh.exe", command: "uh mission run" },
+      { pid: 2, ppid: 1, name: "node.exe", command: "runtime --json" },
+      { pid: 3, ppid: 2, name: "cmd.exe", command: "shell" },
+      { pid: 4, ppid: 99, name: "other.exe", command: "unrelated" },
+    ]);
+    expect(processChildren(1, list).map((child) => child.pid).sort()).toEqual([2, 3]);
+    expect(processChildren(99, list).map((child) => child.pid)).toEqual([4]);
+  });
+
+  test("teamFromArtifactRoot reads team mission and role from the path", () => {
+    const artifactRoot = path.join(ROOT, ".harness", "missions", "wave", "team", "artifacts", "p", "workers", "qa");
+    expect(teamFromArtifactRoot(ROOT, artifactRoot)).toEqual({ mission_id: "wave", role: "qa" });
+    expect(teamFromArtifactRoot(ROOT, ROOT)).toBeUndefined();
+  });
+});
+
+/* --------------------------------------------------------- ps exit + format */
+
+describe("uh ps presentation", () => {
+  test("a dead controller makes the run orphaned, forces exit 3, and shows in counts", async () => {
+    const runId = "20260922T100800Z-bbbbb1";
+    await seedControl(ROOT, "incident", runId, { controller_pid: 999_999 });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "incident", runtime: "oh-my-pi" });
+
+    const { records, orphaned } = await listLiveRuns(ROOT, { processes: [], now: NOW, persist: false });
+    const found = records.find((entry) => entry.run_id === runId)!;
+    expect(found.liveness).toBe("orphaned");
+    expect(orphaned).toBe(1);
+    expect(liveRunsExitCode(records)).toBe(3);
+    expect(await liveRunCounts(ROOT, { processes: [], now: NOW })).toEqual({ total: 1, orphaned: 1 });
+    expect(formatLiveRuns(records, { now: NOW })).toContain("orphaned");
+  });
+
+  test("no orphaned runs means exit 0 and a stable formatted line", async () => {
+    const runId = "20260922T100900Z-bbbbb2";
+    await seedControl(ROOT, "wave", runId, { controller_pid: 4242, turns: 5, denials: 0 });
+    await registerLiveRun({
+      projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "wave", runtime: "oh-my-pi",
+      model: "gpt-5", team: { mission_id: "wave", role: "backend" },
+    });
+
+    const { records, orphaned } = await listLiveRuns(ROOT, {
+      processes: processes([{ pid: 4242, ppid: 1 }]), now: NOW, persist: false,
+    });
+    expect(orphaned).toBe(0);
+    expect(liveRunsExitCode(records)).toBe(0);
+    const line = formatLiveRuns(records, { now: NOW });
+    expect(line).toContain(runId);
+    expect(line).toContain("team=backend");
+    expect(line).toContain("oh-my-pi/gpt-5");
+    expect(line).toContain("live");
+    expect(line).toContain("pids=4242");
+    expect(await liveRunCounts(ROOT, { processes: processes([{ pid: 4242, ppid: 1 }]), now: NOW }))
+      .toEqual({ total: 1, orphaned: 0 });
+  });
+
+  test("empty registry formats as no live runs", async () => {
+    expect(formatLiveRuns([], { now: NOW })).toBe("No live runs.");
+  });
+});
+
+/* ------------------------------------------------------------- CLI contract */
+
+function runPs(args: string[]): { status: number | null; stdout: string; stderr: string } {
+  return spawnSync("bun", ["x", "tsx", CLI, ...args], {
+    encoding: "utf-8",
+    timeout: 60_000,
+    env: { ...process.env, UH_TELEMETRY: "", UH_POSTHOG_API_KEY: "" },
+  }) as { status: number | null; stdout: string; stderr: string };
+}
+
+describe("uh ps CLI", () => {
+  test("exits 3 with an orphaned run and 0 with none", async () => {
+    const runId = "20260922T101000Z-ccccc1";
+    await seedControl(ROOT, "incident", runId, { controller_pid: 2_147_483_646 });
+    await registerLiveRun({ projectRoot: ROOT, artifactRoot: ROOT, runId, missionId: "incident", runtime: "oh-my-pi" });
+
+    const orphaned = runPs(["ps", "--root", ROOT, "--json"]);
+    expect(orphaned.status).toBe(3);
+    const parsed = JSON.parse(orphaned.stdout) as { orphaned: number; runs: Array<{ run_id: string; liveness: string }> };
+    expect(parsed.orphaned).toBe(1);
+    expect(parsed.runs.find((entry) => entry.run_id === runId)?.liveness).toBe("orphaned");
+
+    const cleanRoot = await mkdtemp(path.join(tmpdir(), "uh-live-runs-clean-"));
+    try {
+      const clean = runPs(["ps", "--root", cleanRoot]);
+      expect(clean.status).toBe(0);
+      expect(clean.stdout).toContain("No live runs.");
+    } finally {
+      await rm(cleanRoot, { recursive: true, force: true });
+    }
+  }, 60_000);
+});
+
+/* --------------------------------------------------------- default lister */
+
+describe("default process lister", () => {
+  test("returns native processes without throwing", async () => {
+    const { defaultProcessLister } = await import("../src/harness/live-runs.js");
+    const list = await defaultProcessLister();
+    expect(Array.isArray(list)).toBe(true);
+    expect(list.every((entry) => typeof entry.pid === "number" && typeof entry.ppid === "number")).toBe(true);
+  }, 30_000);
+});
diff --git a/tests/loop-probe.test.ts b/tests/loop-probe.test.ts
new file mode 100644
index 0000000..44b3c6e
--- /dev/null
+++ b/tests/loop-probe.test.ts
@@ -0,0 +1,588 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { fileURLToPath } from "node:url";
+import { afterEach, beforeEach, describe, expect, test, vi, type Mock } from "vitest";
+import { DEFAULT_TYPESAFE_MODEL } from "../src/harness/typesafe.js";
+import {
+  LOOP_PROBE_QUESTIONS,
+  LOOP_PROBE_QUESTIONS as QUESTIONS,
+  DEFAULT_ACTIVITY_WINDOW,
+  MIN_PROBE_CALLS,
+  deterministicLoopSignals,
+  evaluateLoopProbe,
+  loopProbeQuestions,
+  projectActivity,
+  serializeLoopProbeState,
+  type ActivityWindow,
+  type ProjectedToolCall,
+} from "../src/harness/loop-probe.js";
+
+/** A fake key for the disabled-path tests; never a real credential. */
+const FAKE_KEY = "test-key-not-a-secret";
+const VERSIONED_MODEL = "jev-2026-09-01";
+const WORKING_DIRECTORY = "/repo/work";
+/** Planted in arguments, tool output and message text: none may reach the request. */
+const MARKER = "SENTINEL-MUST-NOT-APPEAR-4f9a1c";
+const noDelay = async () => {};
+
+const FIXTURE_DIR = fileURLToPath(new URL("./fixtures/runtime-events", import.meta.url));
+
+/** Parse a native event excerpt: one JSON event per line. */
+function fixture(name: string): unknown[] {
+  return readFileSync(join(FIXTURE_DIR, name), "utf-8")
+    .split("\n")
+    .map(line => line.trim())
+    .filter(Boolean)
+    .map(line => JSON.parse(line) as unknown);
+}
+
+const commandCodeHealthy = () => fixture("command-code-healthy.ndjson");
+const commandCodeDenied = () => fixture("command-code-denied-retries.ndjson");
+const ohMyPiHealthy = () => fixture("oh-my-pi-healthy.ndjson");
+
+type CapturedBody = {
+  model: string;
+  state: { activity: ActivityWindow };
+  questions: Record<string, { type: string; instructions?: string; criteria?: { true?: string; false?: string } }>;
+};
+
+function bodyOf(init?: RequestInit): CapturedBody {
+  return JSON.parse(String(init?.body)) as CapturedBody;
+}
+
+/** Answers every asked Noul with `noul`, mirroring the provider envelope. */
+function envelopeFor(body: CapturedBody, noul: number | ((name: string) => number)): string {
+  const answers: Record<string, unknown> = {};
+  for (const [name, question] of Object.entries(body.questions)) {
+    answers[name] = { type: question.type, noul: typeof noul === "number" ? noul : noul(name) };
+  }
+  return JSON.stringify({ model: VERSIONED_MODEL, answers, usage: { input_tokens: 9, output_tokens: 4 } });
+}
+
+function provider(noul: number | ((name: string) => number) = 0.8): Mock<typeof fetch> {
+  return vi.fn<typeof fetch>(async (_input, init) => new Response(envelopeFor(bodyOf(init), noul), { status: 200 }));
+}
+
+/** Command Code: `tool_queued` carries `input`, the call is keyed by `toolCallId`. */
+function queued(toolCallId: string, toolName: string, input: Record<string, unknown>) {
+  return { type: "tool_queued", toolCallId, toolName, input };
+}
+
+function running(toolCallId: string, toolName: string) {
+  return { type: "tool_running", toolCallId, toolName };
+}
+
+function completed(toolCallId: string, toolName: string, extra: Record<string, unknown> = {}) {
+  return { type: "tool_completed", toolCallId, toolName, deferred: false, result: [{ type: "text", text: "x" }], ...extra };
+}
+
+function hookBlocked(toolCallId: string, toolName: string) {
+  return { type: "tool_hook_blocked", toolCallId, toolName };
+}
+
+/** oh-my-pi: `tool_execution_start` carries `args`, `tool_execution_end` carries `isError`. */
+function ompStart(toolCallId: string, toolName: string, args: Record<string, unknown>) {
+  return { type: "tool_execution_start", toolCallId, toolName, args };
+}
+
+function ompEnd(toolCallId: string, toolName: string, extra: Record<string, unknown> = {}) {
+  return { type: "tool_execution_end", toolCallId, toolName, result: { isError: false }, ...extra };
+}
+
+function events(...values: unknown[]): unknown[] {
+  return values;
+}
+
+beforeEach(() => {
+  // Keep the ambient environment from selecting a model or enabling a real call.
+  vi.stubEnv("UH_TYPESAFE_MODEL", "");
+  vi.stubEnv("TYPESAFE_API_KEY", "");
+});
+
+afterEach(() => {
+  vi.unstubAllEnvs();
+  vi.unstubAllGlobals();
+  vi.restoreAllMocks();
+});
+
+/** Four shell calls on the same target that keep failing: the smallest probeable window. */
+function loopingEvents(): unknown[] {
+  const calls = [
+    ["s1", "bun test"],
+    ["s2", "bun  test"],
+    ["s3", "bun test"],
+    ["s4", "bun test"],
+  ] as const;
+  return calls.flatMap(([id, command]) => [
+    ompStart(id, "bash", { command }),
+    ompEnd(id, "bash", { isError: true, result: { exitCode: 1, content: [{ text: `failure ${MARKER}` }] } }),
+  ]);
+}
+
+describe("projectActivity", () => {
+  test("projects a real Command Code healthy run from `input.paths`, `pattern` and the shell executable", () => {
+    const window = projectActivity(commandCodeHealthy(), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.source).toBe("command-code");
+    expect(window.calls).toEqual([
+      { tool: "read_file", kind: "read", target: "src/harness/team-run.ts", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "tests/team-run.test.ts", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "tests/worktree-lock.test.ts", ok: true, error_class: "none" },
+      { tool: "grep", kind: "read", target: "<pattern>", ok: true, error_class: "none" },
+      { tool: "write_file", kind: "write", target: "tests/team-commit-hygiene.test.ts", ok: true, error_class: "none" },
+      { tool: "shell_command", kind: "shell", target: "bunx", ok: true, error_class: "none" },
+      { tool: "edit_file", kind: "write", target: "src/harness/team-run.ts", ok: true, error_class: "none" },
+      { tool: "edit_file", kind: "write", target: "src/harness/team-run.ts", ok: true, error_class: "none" },
+      { tool: "edit_file", kind: "write", target: "src/harness/team-run.ts", ok: true, error_class: "none" },
+      { tool: "shell_command", kind: "shell", target: "bunx", ok: true, error_class: "none" },
+    ]);
+    // The signal the provider receives: every target resolved, a healthy spread, no loop.
+    expect(window.calls.every(call => call.target !== "unknown")).toBe(true);
+    expect(deterministicLoopSignals(window)).toEqual({
+      identical_repeats: 2,
+      alternating_pairs: 0,
+      distinct_targets: 5,
+    });
+  });
+
+  test("projects a real Command Code denied run: hook blocks complete as denials and the repeated write target is visible", () => {
+    const window = projectActivity(commandCodeDenied(), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.source).toBe("command-code");
+    // The window keeps the last 12 completed calls (call-25 is queued but never completes).
+    expect(window.calls).toEqual([
+      { tool: "write_file", kind: "write", target: "<outside>", ok: false, error_class: "denied" },
+      { tool: "write_file", kind: "write", target: "<outside>", ok: false, error_class: "denied" },
+      { tool: "shell_command", kind: "shell", target: "echo", ok: false, error_class: "denied" },
+      { tool: "glob", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: ".commandcode/settings.json", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "shell_command", kind: "shell", target: "echo", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "grep", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "grep", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+      { tool: "read_file", kind: "read", target: "<outside>", ok: true, error_class: "none" },
+    ]);
+    expect(window.calls.filter(call => call.error_class === "denied")).toHaveLength(3);
+    expect(window.calls.filter(call => call.kind === "write")).toEqual([
+      { tool: "write_file", kind: "write", target: "<outside>", ok: false, error_class: "denied" },
+      { tool: "write_file", kind: "write", target: "<outside>", ok: false, error_class: "denied" },
+    ]);
+  });
+
+  test("resolves oh-my-pi targets from `args`", () => {
+    const window = projectActivity(ohMyPiHealthy(), { window: 30, workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.source).toBe("oh-my-pi");
+    // Calls are projected in completion order, and every read resolves from `args.path`.
+    const reads = window.calls.filter(call => call.tool === "read").map(call => call.target);
+    expect(reads).toEqual([
+      "src/harness/acceptance.ts",
+      "docs/acceptance/README.md",
+      "tests/acceptance.test.ts",
+      "src/schema/acceptance.ts",
+      "src/harness/acceptance.ts:106-145",
+      "src/harness/acceptance.ts:470-482",
+      "tests/acceptance.test.ts:50-100",
+      ".claude/skills/gitnexus/impact-analysis/SKILL.md",
+    ]);
+    expect(reads.every(target => target !== "unknown")).toBe(true);
+    expect(window.calls.filter(call => call.tool === "grep").map(call => call.target)).toEqual([
+      "src;tests",
+      "src/cli.ts;src/harness",
+    ]);
+    expect(window.calls.filter(call => call.tool === "bash").map(call => call.target)).toEqual([
+      "gitnexus_impact",
+      "bunx",
+    ]);
+    // A search without a path keeps only its position, never its query.
+    expect(window.calls.filter(call => call.tool === "grep").map(call => call.kind)).toEqual(["read", "read"]);
+  });
+
+  test("joins arguments captured at the start event to the completion by toolCallId", () => {
+    const window = projectActivity(events(
+      queued("cc1", "read_file", { file_path: "src/a.ts" }),
+      running("cc1", "read_file"),
+      completed("cc1", "read_file"),
+      // A completion without a registered start names nothing and is dropped.
+      completed("orphan", "read_file"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.calls).toEqual([
+      { tool: "read_file", kind: "read", target: "src/a.ts", ok: true, error_class: "none" },
+    ]);
+  });
+
+  test("unwraps the Command Code `event` envelope", () => {
+    const window = projectActivity(events(
+      { type: "event", event: { type: "tool_queued", toolCallId: "e1", toolName: "shell_command", input: { command: "bun test" } } },
+      { type: "event", event: { type: "tool_completed", toolCallId: "e1", toolName: "shell_command", result: [{ type: "text", text: "x" }] } },
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.source).toBe("command-code");
+    expect(window.calls).toEqual([
+      { tool: "shell_command", kind: "shell", target: "bun", ok: true, error_class: "none" },
+    ]);
+  });
+
+  test("normalizes paths to forward slashes relative to the working directory, with <outside> beyond it", () => {
+    const window = projectActivity(events(
+      queued("a", "read_file", { paths: [`${WORKING_DIRECTORY}/src//nested/../harness/a.ts`] }),
+      completed("a", "read_file"),
+      queued("b", "read_file", { file_path: "./relative/b.ts" }),
+      completed("b", "read_file"),
+      queued("c", "read_file", { file_path: "../escaped/c.ts" }),
+      completed("c", "read_file"),
+      queued("d", "read_file", { file_path: "/etc/other/d.ts" }),
+      completed("d", "read_file"),
+      queued("e", "read_file", { file_path: `${WORKING_DIRECTORY}/../sibling/e.ts` }),
+      completed("e", "read_file"),
+      queued("f", "read_file", { path: WORKING_DIRECTORY }),
+      completed("f", "read_file"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.calls.map(call => call.target)).toEqual([
+      "src/harness/a.ts",
+      "relative/b.ts",
+      "<outside>",
+      "<outside>",
+      "<outside>",
+      ".",
+    ]);
+  });
+
+  test("reduces a shell target to the extension-stripped executable token", () => {
+    const window = projectActivity(events(
+      queued("a", "shell_command", { command: "   BUN.EXE   test --run" }),
+      completed("a", "shell_command"),
+      queued("b", "shell_command", { command: "/usr/local/bin/my-tool.exe run" }),
+      completed("b", "shell_command"),
+      queued("c", "shell_command", { command: "./scripts/ci.CMD build" }),
+      completed("c", "shell_command"),
+      queued("d", "shell_command", { command: "" }),
+      completed("d", "shell_command"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.calls.map(call => call.target)).toEqual(["bun", "my-tool", "ci", "unknown"]);
+  });
+
+  test("classifies error classes and never classifies an absent result as a denial", () => {
+    const window = projectActivity(events(
+      queued("d1", "write_file", { file_path: "src/a.ts" }),
+      hookBlocked("d1", "write_file"),
+      queued("d2", "write_file", { file_path: "src/b.ts" }),
+      completed("d2", "write_file", { isError: true, result: { text: "CONTRACT: guarded print-mode refusal" } }),
+      ompStart("t1", "bash", { command: "bun test" }),
+      ompEnd("t1", "bash", { isError: true, result: { content: [{ text: "assertion failed" }] } }),
+      ompStart("z1", "bash", { command: "bun test" }),
+      ompEnd("z1", "bash", { result: { exitCode: 1 } }),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.calls.map(call => [call.target, call.ok, call.error_class])).toEqual([
+      ["src/a.ts", false, "denied"],
+      ["src/b.ts", false, "denied"],
+      ["bun", false, "tool_error"],
+      ["bun", false, "nonzero_exit"],
+    ]);
+    expect(window.calls.every(call => call.tool === "write_file" || call.tool === "bash")).toBe(true);
+  });
+
+  test("keeps the last `window` completed calls and ignores starts without ends", () => {
+    const mixed = [
+      ...events(ompStart("drop", "bash", { command: "bun lint" })),
+      ...loopingEvents(),
+    ];
+    const full = projectActivity(mixed, { workingDirectory: WORKING_DIRECTORY });
+    expect(full.calls).toHaveLength(MIN_PROBE_CALLS);
+    expect(full.calls.map(call => call.target)).toEqual(["bun", "bun", "bun", "bun"]);
+
+    const trimmed = projectActivity(mixed, { workingDirectory: WORKING_DIRECTORY, window: 2 });
+    expect(trimmed.window).toBe(2);
+    expect(trimmed.calls).toHaveLength(2);
+    expect(trimmed.source).toBe("oh-my-pi");
+
+    const invalid = projectActivity(mixed, { workingDirectory: WORKING_DIRECTORY, window: 0 });
+    expect(invalid.window).toBe(DEFAULT_ACTIVITY_WINDOW);
+  });
+
+  test("names an unclassified tool by `unknown` rather than by its command line", () => {
+    const window = projectActivity(events(
+      queued("a", "task", { command: `delegate ${MARKER}`, prompt: `instructions ${MARKER}` }),
+      completed("a", "task"),
+      queued("b", "web_fetch", { url: "https://example.invalid/docs" }),
+      completed("b", "web_fetch"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    expect(window.calls).toEqual([
+      { tool: "task", kind: "other", target: "unknown", ok: true, error_class: "none" },
+      { tool: "web_fetch", kind: "other", target: "unknown", ok: true, error_class: "none" },
+    ]);
+  });
+
+  test("drops events from another runtime and carries no fields beyond the whitelist", () => {
+    const window = projectActivity(events(
+      queued("a", "read_file", { file_path: "src/a.ts" }),
+      ompEnd("other", "read_file", {}),
+      completed("a", "read_file"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+    expect(window.calls).toHaveLength(1);
+    for (const call of window.calls) {
+      expect(Object.keys(call).sort()).toEqual(["error_class", "kind", "ok", "target", "tool"]);
+    }
+  });
+});
+
+describe("deterministicLoopSignals", () => {
+  const call = (overrides: Partial<ProjectedToolCall>): ProjectedToolCall => ({
+    tool: "bash",
+    kind: "shell",
+    target: "bun",
+    ok: true,
+    error_class: "none",
+    ...overrides,
+  });
+
+  function windowOf(calls: ProjectedToolCall[]): ActivityWindow {
+    return { source: "oh-my-pi", window: DEFAULT_ACTIVITY_WINDOW, generated_at: "2026-09-21T00:00:00.000Z", calls };
+  }
+
+  test("counts the longest consecutive repeat run and A B A B alternation on a crafted loop", () => {
+    const loop = windowOf([
+      call({ tool: "edit_file", target: "src/a.ts", kind: "write", ok: false, error_class: "tool_error" }),
+      call({ tool: "edit_file", target: "src/a.ts", kind: "write", ok: false, error_class: "tool_error" }),
+      call({ tool: "edit_file", target: "src/a.ts", kind: "write", ok: false, error_class: "tool_error" }),
+      call({ target: "bun", ok: false, error_class: "nonzero_exit" }),
+      call({ tool: "edit_file", target: "src/a.ts", kind: "write", ok: false, error_class: "tool_error" }),
+      call({ target: "bun", ok: false, error_class: "nonzero_exit" }),
+    ]);
+
+    expect(deterministicLoopSignals(loop)).toEqual({
+      // Three identical calls are one run: two repeats after the first.
+      identical_repeats: 2,
+      // Indices 4 and 5 step back to the state two calls earlier without repeating their neighbour.
+      alternating_pairs: 2,
+      distinct_targets: 2,
+    });
+  });
+
+  test("reports no repeats or alternation on a healthy trajectory", () => {
+    const healthy = windowOf([
+      call({ tool: "read_file", target: "docs/README.md", kind: "read" }),
+      call({ tool: "read_file", target: "src/a.ts", kind: "read" }),
+      call({ target: "bun", ok: false, error_class: "nonzero_exit" }),
+      call({ tool: "edit_file", target: "src/a.ts", kind: "write", ok: false, error_class: "denied" }),
+      call({ target: "bun", ok: true }),
+      call({ tool: "write_file", target: "src/b.ts", kind: "write" }),
+    ]);
+
+    expect(deterministicLoopSignals(healthy)).toEqual({
+      identical_repeats: 0,
+      alternating_pairs: 0,
+      distinct_targets: 4,
+    });
+  });
+
+  test("ignores the pattern and outside placeholders when counting distinct targets", () => {
+    const window = windowOf([
+      call({ tool: "grep", target: "<pattern>", kind: "read" }),
+      call({ tool: "read_file", target: "<outside>", kind: "read" }),
+      call({ tool: "read_file", target: "src/a.ts", kind: "read" }),
+    ]);
+    expect(deterministicLoopSignals(window)).toEqual({
+      identical_repeats: 0,
+      alternating_pairs: 0,
+      distinct_targets: 1,
+    });
+  });
+
+  test("counts nothing on an empty window", () => {
+    expect(deterministicLoopSignals(windowOf([]))).toEqual({
+      identical_repeats: 0,
+      alternating_pairs: 0,
+      distinct_targets: 0,
+    });
+  });
+});
+
+describe("loopProbeQuestions", () => {
+  test("returns the fixed atomic Noul set with true and false criteria", () => {
+    const questions = loopProbeQuestions();
+
+    expect(Object.keys(questions)).toEqual(["retrying", "progressing", "alternating"]);
+    expect(LOOP_PROBE_QUESTIONS).toEqual({ retrying: "retrying", progressing: "progressing", alternating: "alternating" });
+    expect(questions).toEqual({
+      retrying: {
+        type: "noul",
+        instructions: expect.stringContaining("same failing action"),
+        criteria: { true: expect.any(String), false: expect.any(String) },
+      },
+      progressing: expect.objectContaining({ type: "noul" }),
+      alternating: expect.objectContaining({ type: "noul" }),
+    });
+    for (const [name, question] of Object.entries(questions)) {
+      const satisfied = String(question.criteria?.true ?? "");
+      const unsatisfied = String(question.criteria?.false ?? "");
+      expect(question.type).toBe("noul");
+      expect(satisfied.trim().length).toBeGreaterThan(0);
+      expect(unsatisfied.trim().length).toBeGreaterThan(0);
+      expect(satisfied).not.toBe(unsatisfied);
+      expect(question.instructions).toContain(name === "retrying" ? "repeatedly" : "activity.calls");
+    }
+  });
+});
+
+describe("evaluateLoopProbe", () => {
+  test("asks the fixed question set about the projected window and returns typed answers with signals", async () => {
+    const fetchMock = provider(0.9);
+    const signals = deterministicLoopSignals(projectActivity(loopingEvents(), { workingDirectory: WORKING_DIRECTORY }));
+
+    const result = await evaluateLoopProbe(
+      projectActivity(loopingEvents(), { workingDirectory: WORKING_DIRECTORY }),
+      { apiKey: FAKE_KEY, fetch: fetchMock, delay: noDelay },
+    );
+
+    expect(result.kind).toBe("ok");
+    if (result.kind !== "ok") return;
+    expect(result.model).toBe(VERSIONED_MODEL);
+    expect(result.latency_ms).toBeGreaterThanOrEqual(0);
+    expect(result.answers).toEqual({
+      retrying: { noul: 0.9 },
+      progressing: { noul: 0.9 },
+      alternating: { noul: 0.9 },
+    });
+    expect(result.usage).toEqual({ input_tokens: 9, output_tokens: 4 });
+    expect(result.signals).toEqual(signals);
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+
+    const body = bodyOf(fetchMock.mock.calls[0]?.[1]);
+    expect(Object.keys(body.questions)).toEqual(["retrying", "progressing", "alternating"]);
+    expect(body.state.activity.calls).toHaveLength(MIN_PROBE_CALLS);
+    expect(body.state.activity.calls[0]).toEqual({
+      tool: "bash", kind: "shell", target: "bun", ok: false, error_class: "nonzero_exit",
+    });
+    expect(body.model).toBe(DEFAULT_TYPESAFE_MODEL);
+  });
+
+  test("never places an absolute path, a command line or argument text in the serialized request", async () => {
+    const fetchMock = provider();
+    const window = projectActivity(events(
+      ...commandCodeDenied(),
+      queued("m1", "read_file", { file_path: "/repo/work/src/a.ts", extra: `argument ${MARKER}` }),
+      completed("m1", "read_file", { result: [{ type: "text", text: `file contents ${MARKER}` }] }),
+      queued("m2", "shell_command", { command: `bun test ${MARKER} --filter "progressing"` }),
+      completed("m2", "shell_command", { isError: true, result: [{ type: "text", text: `stderr ${MARKER}` }] }),
+      queued("m3", "write_file", { file_path: "/repo/work/src/c.ts", content: `payload ${MARKER}` }),
+      completed("m3", "write_file", { isError: true }),
+      queued("m4", "read_file", { file_path: "src/harness/a.ts", offset: 1, limit: 5 }),
+      running("m4", "read_file"),
+      completed("m4", "read_file"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    const result = await evaluateLoopProbe(window, { apiKey: FAKE_KEY, fetch: fetchMock, delay: noDelay });
+
+    const body = bodyOf(fetchMock.mock.calls[0]?.[1]);
+    const serialized = JSON.stringify(body);
+    expect(serialized).not.toContain(MARKER);
+    expect(serialized).not.toContain(FAKE_KEY);
+    expect(serialized).not.toContain("/outside/path");
+    expect(serialized).not.toContain("/repo/");
+    expect(serialized).not.toContain("echo x");
+    expect(serialized).not.toContain("cd x");
+    expect(serialized).not.toContain("--filter");
+    // The executable name is allowed; the command line and its arguments are not.
+    expect(body.state.activity.calls.some(call => call.target === "bun" || call.target === "echo")).toBe(true);
+    expect(body.state.activity.calls.every(call => !call.target.startsWith("/"))).toBe(true);
+    expect(JSON.stringify(result)).not.toContain(MARKER);
+    expect(serializeLoopProbeState(window)).toEqual(body.state);
+  });
+
+  test("sends no request when the window holds fewer than four completed calls", async () => {
+    const fetchMock = provider();
+    const short = projectActivity(events(
+      queued("a", "read_file", { file_path: "src/a.ts" }),
+      completed("a", "read_file"),
+      queued("b", "read_file", { file_path: "src/b.ts" }),
+      completed("b", "read_file"),
+      queued("c", "read_file", { file_path: "src/c.ts" }),
+      completed("c", "read_file"),
+    ), { workingDirectory: WORKING_DIRECTORY });
+
+    const result = await evaluateLoopProbe(short, { apiKey: FAKE_KEY, fetch: fetchMock, delay: noDelay });
+
+    expect(fetchMock).not.toHaveBeenCalled();
+    expect(result).toEqual({
+      kind: "skipped",
+      reason: "insufficient_activity",
+      calls: 3,
+      signals: deterministicLoopSignals(short),
+    });
+  });
+
+  test("skips without a request at exactly the threshold minus one and probes at the threshold", async () => {
+    const fetchMock = provider();
+    const atThreshold = projectActivity(loopingEvents(), { workingDirectory: WORKING_DIRECTORY });
+    expect(atThreshold.calls).toHaveLength(MIN_PROBE_CALLS);
+    await evaluateLoopProbe(atThreshold, { apiKey: FAKE_KEY, fetch: fetchMock, delay: noDelay });
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+
+    const oneShort = projectActivity(
+      events(queued("a", "read_file", { file_path: "src/a.ts" }), completed("a", "read_file")),
+      { workingDirectory: WORKING_DIRECTORY },
+    );
+    const skipped = await evaluateLoopProbe(oneShort, { apiKey: FAKE_KEY, fetch: fetchMock, delay: noDelay });
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+    expect(skipped.kind).toBe("skipped");
+  });
+
+  test("passes disabled, unavailable and malformed provider results through unchanged alongside signals", async () => {
+    const window = projectActivity(loopingEvents(), { workingDirectory: WORKING_DIRECTORY });
+    const signals = deterministicLoopSignals(window);
+
+    const disabled = await evaluateLoopProbe(window, {
+      apiKey: "", fetch: provider(), delay: noDelay, configured: false,
+    });
+    expect(disabled).toEqual({ kind: "disabled", signals });
+
+    const unavailable = await evaluateLoopProbe(window, {
+      apiKey: FAKE_KEY,
+      fetch: vi.fn<typeof fetch>(async () => { throw new Error("transport down"); }),
+      delay: noDelay,
+    });
+    expect(unavailable).toEqual({ kind: "unavailable", reason: "transport", signals });
+
+    const httpUnavailable = await evaluateLoopProbe(window, {
+      apiKey: FAKE_KEY,
+      fetch: vi.fn<typeof fetch>(async () => new Response("rate limited", { status: 500 })),
+      delay: noDelay,
+    });
+    expect(httpUnavailable).toEqual({ kind: "unavailable", reason: "http", status: 500, signals });
+
+    const badJson = await evaluateLoopProbe(window, {
+      apiKey: FAKE_KEY,
+      fetch: vi.fn<typeof fetch>(async () => new Response("<not json>", { status: 200 })),
+      delay: noDelay,
+    });
+    expect(badJson).toEqual({ kind: "malformed", reason: "invalid_json", signals });
+
+    const badEnvelope = await evaluateLoopProbe(window, {
+      apiKey: FAKE_KEY,
+      fetch: vi.fn<typeof fetch>(async () => new Response(JSON.stringify({ model: VERSIONED_MODEL, answers: {} }), { status: 200 })),
+      delay: noDelay,
+    });
+    expect(badEnvelope).toEqual({ kind: "malformed", reason: "invalid_envelope", signals });
+  });
+
+  test("reports the same three answer keys and signals whether or not the provider answered", async () => {
+    const window = projectActivity(loopingEvents(), { workingDirectory: WORKING_DIRECTORY });
+    const answered = await evaluateLoopProbe(window, {
+      apiKey: FAKE_KEY, fetch: provider(name => (name === QUESTIONS.retrying ? 0.95 : 0.1)), delay: noDelay,
+    });
+    expect(answered.kind).toBe("ok");
+    if (answered.kind !== "ok") return;
+    expect(Object.keys(answered.answers).sort()).toEqual(Object.keys(QUESTIONS).sort());
+    expect(answered.answers[QUESTIONS.retrying]?.noul).toBe(0.95);
+    expect(answered.answers[QUESTIONS.progressing]?.noul).toBe(0.1);
+    expect(answered.signals).toEqual(deterministicLoopSignals(window));
+  });
+});
diff --git a/tests/mcp-server.test.ts b/tests/mcp-server.test.ts
new file mode 100644
index 0000000..55e33f0
--- /dev/null
+++ b/tests/mcp-server.test.ts
@@ -0,0 +1,430 @@
+import { afterEach, describe, expect, test } from "vitest";
+import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { PassThrough, Readable } from "node:stream";
+import { stringify } from "yaml";
+import { indexRuns } from "../src/harness/experience-store.js";
+import { MCP_PROTOCOL_VERSIONS, createMcpServer, serveMcpStdio } from "../src/harness/mcp-server.js";
+
+const VERSION = "9.9.9";
+const MODERN = MCP_PROTOCOL_VERSIONS[0];
+const LEGACY = MCP_PROTOCOL_VERSIONS[1];
+const PROTOCOL_VERSION_META = "io.modelcontextprotocol/protocolVersion";
+
+let root: string;
+
+afterEach(async () => {
+  if (root) await rm(root, { recursive: true, force: true });
+});
+
+function server() {
+  return createMcpServer({ root, version: VERSION });
+}
+
+/** The modern generation declares its protocol version per request through `_meta`. */
+function modern(id: string | number, method: string, params: Record<string, unknown> = {}) {
+  return { jsonrpc: "2.0", id, method, params: { _meta: { [PROTOCOL_VERSION_META]: MODERN }, ...params } };
+}
+
+async function putRun(missionId: string, runId: string, files: Record<string, unknown | string>) {
+  const dir = path.join(root, ".harness", "missions", missionId, "runs", runId);
+  await mkdir(dir, { recursive: true });
+  for (const [name, value] of Object.entries(files)) {
+    await writeFile(path.join(dir, name), typeof value === "string" ? value : name.endsWith(".yaml") ? stringify(value) : JSON.stringify(value), "utf8");
+  }
+  return dir;
+}
+
+const runtimeResult = (overrides: Record<string, unknown> = {}) => ({
+  schema_version: "uh.runtime-result.v0", mission_id: "mission-a", runtime: "hermes", status: "passed",
+  started_at: "2026-09-21T10:00:00.000Z", finished_at: "2026-09-21T10:00:02.000Z",
+  prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+  provider: "provider-a", model: "model-a",
+  usage: { source: "runtime", input_tokens: 100, output_tokens: 20, cache_read_tokens: 30, cache_write_tokens: 10, cost_usd: 1.25, cost_basis: "provider_reported" },
+  ...overrides,
+});
+
+const runtimeControl = (overrides: Record<string, unknown> = {}) => ({
+  schema_version: "uh.runtime-control.v0", mission_id: "mission-a", run_id: "run-a1", runtime: "hermes",
+  controller_pid: 1, started_at: "2026-09-21T10:00:00.000Z", heartbeat_at: "2026-09-21T10:00:02.000Z",
+  status: "passed", turns: 4, denials: 1, inflight_tools: 0, peak_memory_bytes: 4096, ...overrides,
+});
+
+const RUN_A1 = ".harness/missions/mission-a/runs/run-a1";
+const RUN_A2 = ".harness/missions/mission-a/runs/run-a2";
+
+/** One mission with two fixture run directories; returns the first run directory. */
+async function seedProject(): Promise<string> {
+  root = await mkdtemp(path.join(tmpdir(), "uh-mcp-"));
+  const missionDir = path.join(root, ".harness", "missions", "mission-a");
+  await mkdir(missionDir, { recursive: true });
+  await writeFile(path.join(missionDir, "mission.yaml"), stringify({
+    schema_version: "uh.mission.v0", id: "mission-a", title: "Fixture mission", workflow_profile: "spec-first-feature",
+  }), "utf8");
+  const runA1 = await putRun("mission-a", "run-a1", {
+    "runtime-result.yaml": runtimeResult(),
+    "runtime-control.json": runtimeControl(),
+    "verification.yaml": { schema_version: "uh.verification-result.v0", mission_id: "mission-a", status: "passed", checks: [] },
+    "prompt.md": "PROMPT BODY MUST NEVER LEAVE THE FILESYSTEM",
+    "events.ndjson": `{"type":"prompt","text":"PROMPT BODY MUST NEVER LEAVE THE FILESYSTEM"}\n`,
+    "runtime.stdout.log": "PROMPT BODY MUST NEVER LEAVE THE FILESYSTEM",
+    "runtime.stderr.log": "PROMPT BODY MUST NEVER LEAVE THE FILESYSTEM",
+  });
+  // What a settled run leaves at the mission level (see mirrorRuntimeResultToLatest).
+  await writeFile(path.join(missionDir, "runtime-result.yaml"), stringify(runtimeResult()), "utf8");
+  await putRun("mission-a", "run-a2", {
+    "runtime-control.json": runtimeControl({
+      run_id: "run-a2", runtime: "codex", status: "failed", stop_code: "timeout",
+      stop_reason: `deadline exceeded under ${root}`, turns: 2, denials: 0, peak_memory_bytes: undefined,
+    }),
+  });
+  return runA1;
+}
+
+async function callTool(name: string, args?: Record<string, unknown>) {
+  const response = await server().handle(modern(1, "tools/call", { name, arguments: args })) as Record<string, any>;
+  expect(response.error).toBeUndefined();
+  return response.result as Record<string, any>;
+}
+
+function textOf(result: Record<string, unknown>) {
+  const content = result.content as Array<Record<string, unknown>>;
+  expect(content.map((item) => item.type)).toEqual(["text"]);
+  return String(content[0].text);
+}
+
+describe("mcp server: 2026-07-28 stateless generation", () => {
+  test("answers server/discover with versions, capabilities, identity and cache hints", async () => {
+    await seedProject();
+    const response = await server().handle(modern("discover-1", "server/discover")) as Record<string, any>;
+    expect(response.jsonrpc).toBe("2.0");
+    expect(response.id).toBe("discover-1");
+    expect(response.error).toBeUndefined();
+    expect(response.result.resultType).toBe("complete");
+    expect(response.result.supportedVersions).toEqual([MODERN, LEGACY]);
+    expect(response.result.capabilities).toEqual({ tools: {} });
+    expect(response.result.serverInfo).toEqual({ name: "ultimate-harness", version: VERSION });
+    expect(response.result._meta["io.modelcontextprotocol/serverInfo"]).toEqual({ name: "ultimate-harness", version: VERSION });
+    expect(response.result.ttlMs).toBe(60_000);
+    expect(response.result.cacheScope).toBe("private");
+  });
+
+  test("answers server/discover when the client sends no per-request metadata", async () => {
+    await seedProject();
+    const response = await server().handle({ jsonrpc: "2.0", id: 7, method: "server/discover" }) as Record<string, any>;
+    expect(response.result.supportedVersions).toContain(MODERN);
+  });
+
+  test("rejects an unsupported protocol version with -32602 naming the supported versions", async () => {
+    await seedProject();
+    const response = await server().handle({
+      jsonrpc: "2.0", id: 3, method: "tools/list", params: { _meta: { [PROTOCOL_VERSION_META]: "1900-01-01" } },
+    }) as Record<string, any>;
+    expect(response.result).toBeUndefined();
+    expect(response.error.code).toBe(-32602);
+    for (const version of MCP_PROTOCOL_VERSIONS) expect(response.error.message).toContain(version);
+    expect(response.error.data.supported).toEqual([MODERN, LEGACY]);
+    expect(response.error.data.requested).toBe("1900-01-01");
+  });
+});
+
+describe("mcp server: 2025-11-25 handshake generation", () => {
+  test("initializes, swallows notifications/initialized and answers ping", async () => {
+    await seedProject();
+    const initialize = await server().handle({
+      jsonrpc: "2.0", id: 1, method: "initialize",
+      params: { protocolVersion: LEGACY, capabilities: {}, clientInfo: { name: "host", version: "1" } },
+    }) as Record<string, any>;
+    expect(initialize.result.protocolVersion).toBe(LEGACY);
+    expect(initialize.result.capabilities).toEqual({ tools: {} });
+    expect(initialize.result.serverInfo).toEqual({ name: "ultimate-harness", version: VERSION });
+    expect(initialize.result.resultType).toBe("complete");
+
+    expect(await server().handle({ jsonrpc: "2.0", method: "notifications/initialized" })).toBeUndefined();
+
+    const ping = await server().handle({ jsonrpc: "2.0", id: 2, method: "ping" }) as Record<string, any>;
+    expect(ping.id).toBe(2);
+    expect(ping.error).toBeUndefined();
+    expect(ping.result.resultType).toBe("complete");
+  });
+
+  test("negotiates the newest supported legacy version when initialize asks for another", async () => {
+    await seedProject();
+    const response = await server().handle({
+      jsonrpc: "2.0", id: 1, method: "initialize",
+      params: { protocolVersion: "2024-11-05", capabilities: {}, clientInfo: { name: "host", version: "1" } },
+    }) as Record<string, any>;
+    expect(response.result.protocolVersion).toBe(LEGACY);
+  });
+
+  test("never responds to a notification, known or not", async () => {
+    await seedProject();
+    for (const method of ["notifications/initialized", "notifications/cancelled", "notifications/nope"]) {
+      expect(await server().handle({ jsonrpc: "2.0", method })).toBeUndefined();
+    }
+    expect(await server().handle({ jsonrpc: "2.0", id: 5, method: "notifications/initialized" })).toBeUndefined();
+    expect(await server().handle({ jsonrpc: "2.0", id: null, method: "ping" })).toBeUndefined();
+  });
+});
+
+describe("mcp server: framing and error codes", () => {
+  test("lists tools in a fixed order with cache fields and closed input schemas", async () => {
+    await seedProject();
+    const response = await server().handle(modern(1, "tools/list")) as Record<string, any>;
+    const tools = response.result.tools as Array<Record<string, any>>;
+    expect(tools.map((tool) => tool.name)).toEqual(["uh_status", "uh_runs", "uh_run"]);
+    expect(response.result.resultType).toBe("complete");
+    expect(response.result.ttlMs).toBe(60_000);
+    expect(response.result.cacheScope).toBe("private");
+    for (const tool of tools) {
+      expect(String(tool.description).length).toBeGreaterThan(10);
+      expect(tool.inputSchema.type).toBe("object");
+      expect(tool.inputSchema.additionalProperties).toBe(false);
+    }
+    expect(tools[0].inputSchema.properties).toEqual({});
+    expect(tools[1].inputSchema.required).toEqual([]);
+    expect(tools[1].inputSchema.properties.group_by.enum).toEqual(["runtime", "model", "workflow_profile", "stop_code"]);
+    expect(tools[2].inputSchema.required).toEqual(["mission_id", "run_id"]);
+
+    const again = await server().handle({ jsonrpc: "2.0", id: 2, method: "tools/list" }) as Record<string, any>;
+    expect(again.result.tools.map((tool: Record<string, unknown>) => tool.name)).toEqual(tools.map((tool) => tool.name));
+  });
+
+  test("answers unknown methods with -32601", async () => {
+    await seedProject();
+    const response = await server().handle(modern(9, "resources/list")) as Record<string, any>;
+    expect(response.error.code).toBe(-32601);
+    expect(response.result).toBeUndefined();
+  });
+
+  test("answers requests that are not request objects with -32600", async () => {
+    await seedProject();
+    const cases: unknown[] = ["nope", 42, null, [], { jsonrpc: "2.0", id: 4 }, { jsonrpc: "2.0", id: 4, method: 7 }, { method: "ping", id: 4 }];
+    for (const value of cases) {
+      const response = await server().handle(value) as Record<string, any>;
+      expect(response.error.code, JSON.stringify(value)).toBe(-32600);
+      expect(response.result).toBeUndefined();
+    }
+  });
+});
+
+describe("mcp server: tools", () => {
+  test("uh_status returns the status document with the project root rendered as relative", async () => {
+    await seedProject();
+    const result = await callTool("uh_status");
+    expect(result.isError).toBeUndefined();
+    const status = result.structuredContent as Record<string, any>;
+    expect(status.schema_version).toBe("uh.status.v0");
+    expect(status.version).toBe(VERSION);
+    expect(status.project_root).toBe(".");
+    expect(status.missions).toEqual({ total: 1, by_status: { passed: 1, blocked: 0, failed: 0, running: 0, pending: 0 } });
+    expect(status.recent_runs.map((run: Record<string, unknown>) => run.mission_id)).toContain("mission-a");
+    expect(JSON.parse(textOf(result))).toEqual(status);
+  });
+
+  test("uh_status takes no arguments and rejects any it is given", async () => {
+    await seedProject();
+    const result = await callTool("uh_status", { mission_id: "mission-a" });
+    expect(result.isError).toBe(true);
+    expect(textOf(result)).toContain("uh_status");
+  });
+
+  test("uh_runs indexes runs and nulls unknown values instead of inventing zero", async () => {
+    await seedProject();
+    const payload = (await callTool("uh_runs")).structuredContent as Record<string, any>;
+    expect(Object.keys(payload)).toEqual(["runs", "group_by"]);
+    expect(payload.group_by).toBeNull();
+    expect(payload.runs.map((run: Record<string, unknown>) => run.run_id)).toEqual(["run-a1", "run-a2"]);
+    const [first, second] = payload.runs;
+    expect(first).toMatchObject({
+      mission_id: "mission-a", run_id: "run-a1", runtime: "hermes", model: "model-a",
+      workflow_profile: "spec-first-feature", status: "passed", duration_ms: 2000, cost_usd: 1.25,
+      verification_status: "passed", stop_code: null,
+    });
+    expect(second).toMatchObject({ run_id: "run-a2", status: "failed", stop_code: "timeout" });
+    for (const field of ["cost_usd", "finished_at", "duration_ms", "verification_status", "model", "peak_memory_bytes"]) {
+      expect(second[field], field).toBeNull();
+    }
+  });
+
+  test("uh_runs filters by mission and summarizes with the pareto frontier", async () => {
+    await seedProject();
+    const grouped = (await callTool("uh_runs", { group_by: "runtime" })).structuredContent as Record<string, any>;
+    expect(grouped.group_by).toBe("runtime");
+    expect(grouped.groups.map((group: Record<string, unknown>) => group.key)).toEqual(["codex", "hermes"]);
+    expect(grouped.groups[1]).toMatchObject({ runs: 1, passed: 1, success_rate: 1, known_cost_runs: 1, total_cost_usd: 1.25, mean_cost_usd: 1.25 });
+    expect(grouped.pareto.map((group: Record<string, unknown>) => group.key)).toEqual(["hermes"]);
+
+    const filtered = (await callTool("uh_runs", { mission_id: "mission-a", group_by: "stop_code" })).structuredContent as Record<string, any>;
+    expect(filtered.groups.map((group: Record<string, unknown>) => group.key)).toEqual(["timeout", null]);
+    expect(filtered.groups[1]).toMatchObject({ runs: 1, passed: 1, known_cost_runs: 1 });
+    expect(filtered.pareto.map((group: Record<string, unknown>) => group.key)).toEqual([null]);
+  });
+
+  test("uh_run returns one record plus only the artifacts that exist", async () => {
+    await seedProject();
+    const result = await callTool("uh_run", { mission_id: "mission-a", run_id: "run-a1" });
+    const payload = result.structuredContent as Record<string, any>;
+    expect(payload.run).toMatchObject({ mission_id: "mission-a", run_id: "run-a1", cost_usd: 1.25 });
+    expect(payload.artifacts).toEqual([
+      `${RUN_A1}/events.ndjson`,
+      `${RUN_A1}/prompt.md`,
+      `${RUN_A1}/runtime-control.json`,
+      `${RUN_A1}/runtime-result.yaml`,
+      `${RUN_A1}/runtime.stderr.log`,
+      `${RUN_A1}/runtime.stdout.log`,
+      `${RUN_A1}/verification.yaml`,
+    ]);
+    const serialized = JSON.stringify(result);
+    expect(serialized).not.toContain("PROMPT BODY MUST NEVER LEAVE THE FILESYSTEM");
+    for (const missing of ["diff.patch", "runtime-final.txt", "runtime-session.yaml", "runtime-recovery.json"]) {
+      expect(serialized, missing).not.toContain(missing);
+    }
+  });
+
+  test("uh_run on a control-only run reports just its control artifact", async () => {
+    await seedProject();
+    const payload = (await callTool("uh_run", { mission_id: "mission-a", run_id: "run-a2" })).structuredContent as Record<string, any>;
+    expect(payload.run).toMatchObject({ run_id: "run-a2", runtime: "codex", status: "failed", stop_code: "timeout" });
+    expect(payload.artifacts).toEqual([`${RUN_A2}/runtime-control.json`]);
+  });
+
+  test("reports unknown tools, invalid arguments and unknown runs as isError results", async () => {
+    await seedProject();
+    const noName = await server().handle({ jsonrpc: "2.0", id: 1, method: "tools/call", params: {} }) as Record<string, any>;
+    expect(noName.error).toBeUndefined();
+    expect(noName.result.isError).toBe(true);
+
+    expect((await callTool("uh_delete_everything")).isError).toBe(true);
+    expect(textOf(await callTool("uh_nope"))).toContain("Unknown tool");
+
+    const badGroup = await callTool("uh_runs", { group_by: "cost_usd" });
+    expect(badGroup.isError).toBe(true);
+    expect(textOf(badGroup)).toContain("group_by");
+
+    expect((await callTool("uh_runs", { mission_id: 7 })).isError).toBe(true);
+    expect((await callTool("uh_runs", { group_by: "runtime", extra: true })).isError).toBe(true);
+    expect((await callTool("uh_run", { mission_id: "mission-a" })).isError).toBe(true);
+    expect((await callTool("uh_run", { mission_id: "mission-a", run_id: "run-zz" })).isError).toBe(true);
+    expect(textOf(await callTool("uh_run", { mission_id: "mission-a", run_id: "run-zz" }))).toContain("not found");
+    expect((await callTool("uh_run", { mission_id: "mission-zz", run_id: "run-a1" })).isError).toBe(true);
+    expect((await callTool("uh_runs", "not-an-object" as unknown as Record<string, unknown>)).isError).toBe(true);
+  });
+
+  test("rejects path traversal in mission_id and run_id before touching the filesystem", async () => {
+    await seedProject();
+    const attempts: Array<Record<string, unknown>> = [
+      { mission_id: "../secret" },
+      { mission_id: "mission-a/../../secret" },
+      { mission_id: path.resolve(root, "..", "secret") },
+      { mission_id: ".." },
+      { mission_id: "." },
+      { mission_id: "miss*on-a" },
+      { mission_id: "mission-a", run_id: "../run-a1" },
+      { mission_id: "mission-a", run_id: "..\\..\\runs" },
+      { mission_id: "mission-a", run_id: "/" },
+      { mission_id: "mission-a", run_id: "run a1" },
+    ];
+    for (const args of attempts) {
+      const run = await callTool("uh_run", { run_id: "run-a1", ...args });
+      expect(run.isError, JSON.stringify(args)).toBe(true);
+      expect(JSON.stringify(run)).not.toContain("PROMPT BODY");
+      const list = await callTool("uh_runs", args);
+      expect(list.isError, JSON.stringify(args)).toBe(true);
+    }
+  });
+
+  test("returns -32602 when tools/call params are not an object", async () => {
+    await seedProject();
+    const response = await server().handle({ jsonrpc: "2.0", id: 4, method: "tools/call", params: "nope" }) as Record<string, any>;
+    expect(response.error.code).toBe(-32602);
+  });
+});
+
+describe("mcp server: confidentiality", () => {
+  test("no result ever contains an absolute filesystem path", async () => {
+    const runA1 = await seedProject();
+    // The raw store does leak: the failing run's stop_reason names the root.
+    // Without redaction every assertion below would fail.
+    const [, leaking] = await indexRuns(root);
+    expect(leaking.stop_reason).toContain(root);
+    const needles = [...new Set([root, runA1, path.dirname(runA1), tmpdir(), root.replace(/\\/g, "/"), tmpdir().replace(/\\/g, "/")])];
+    const requests: unknown[] = [
+      { jsonrpc: "2.0", id: 1, method: "server/discover" },
+      { jsonrpc: "2.0", id: 2, method: "initialize", params: { protocolVersion: LEGACY, capabilities: {}, clientInfo: { name: "host", version: "1" } } },
+      { jsonrpc: "2.0", id: 3, method: "ping" },
+      { jsonrpc: "2.0", id: 4, method: "tools/list" },
+      modern(5, "tools/call", { name: "uh_status" }),
+      modern(6, "tools/call", { name: "uh_runs", arguments: { group_by: "runtime" } }),
+      modern(7, "tools/call", { name: "uh_run", arguments: { mission_id: "mission-a", run_id: "run-a1" } }),
+      modern(8, "tools/call", { name: "uh_run", arguments: { mission_id: "mission-a", run_id: "run-a2" } }),
+      modern(9, "tools/call", { name: "uh_nope" }),
+      modern(10, "tools/call", { name: "uh_run", arguments: { mission_id: path.resolve(root, "..", "escape"), run_id: "run-a1" } }),
+      modern(11, "no_such_method"),
+    ];
+    for (const request of requests) {
+      const serialized = JSON.stringify(await server().handle(request));
+      for (const needle of needles) {
+        expect(serialized, `${needle} leaked`).not.toContain(needle);
+      }
+      expect(serialized).not.toMatch(/[A-Za-z]:[\\/]{1,2}Users/);
+    }
+  });
+
+  test("error text never echoes back the offending identifier", async () => {
+    await seedProject();
+    const result = await callTool("uh_run", { mission_id: "top-secret-mission-name", run_id: "top secret run" });
+    expect(result.isError).toBe(true);
+    expect(textOf(result)).not.toContain("top-secret-mission-name");
+    expect(textOf(result)).not.toContain("top secret run");
+  });
+});
+
+describe("mcp server: stdio transport", () => {
+  async function serve(lines: string[]) {
+    const input = Readable.from(lines.map((line) => Buffer.from(`${line}\n`, "utf8")));
+    const output = new PassThrough();
+    let captured = "";
+    output.on("data", (chunk: Buffer) => { captured += chunk.toString("utf8"); });
+    await serveMcpStdio({ root, version: VERSION }, input, output);
+    return captured;
+  }
+
+  test("serves newline-delimited JSON and reports parse errors with id null", async () => {
+    await seedProject();
+    const captured = await serve([
+      JSON.stringify(modern(1, "tools/list")),
+      "{this is not json",
+      "",
+      JSON.stringify({ jsonrpc: "2.0", method: "notifications/initialized" }),
+      JSON.stringify({ jsonrpc: "2.0", id: "two", method: "tools/call", params: { name: "uh_runs", arguments: { group_by: "model" } } }),
+      `${JSON.stringify({ jsonrpc: "2.0", id: 3, method: "ping" })}\r`,
+    ]);
+    const responses = captured.trim().split("\n").map((line) => JSON.parse(line) as Record<string, any>);
+    expect(responses.map((response) => response.id)).toEqual([1, null, "two", 3]);
+    expect(responses[1].error.code).toBe(-32700);
+    expect(responses[1].jsonrpc).toBe("2.0");
+    expect(responses[2].result.structuredContent.group_by).toBe("model");
+    expect(responses[3].result.resultType).toBe("complete");
+    expect(captured.endsWith("\n")).toBe(true);
+    expect(captured).not.toContain(root);
+  });
+
+  test("finishes a request that arrives without a trailing newline", async () => {
+    await seedProject();
+    const captured = await serve([JSON.stringify({ jsonrpc: "2.0", id: 1, method: "ping" })]);
+    expect((JSON.parse(captured) as Record<string, unknown>).id).toBe(1);
+  });
+
+  test("answers a request that arrives split across chunks", async () => {
+    await seedProject();
+    const payload = JSON.stringify(modern(42, "ping"));
+    const input = Readable.from([Buffer.from(payload.slice(0, 20), "utf8"), Buffer.from(`${payload.slice(20)}\n`, "utf8")]);
+    const output = new PassThrough();
+    let captured = "";
+    output.on("data", (chunk: Buffer) => { captured += chunk.toString("utf8"); });
+    await serveMcpStdio({ root, version: VERSION }, input, output);
+    expect((JSON.parse(captured) as Record<string, unknown>).id).toBe(42);
+  });
+});
diff --git a/tests/mission-cancel.test.ts b/tests/mission-cancel.test.ts
index 9344259..d11948c 100644
--- a/tests/mission-cancel.test.ts
+++ b/tests/mission-cancel.test.ts
@@ -1,9 +1,15 @@
 import { describe, expect, test, vi, afterEach } from "vitest";
+import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
 import {
+  cancelLocalMissionRun,
   cancelMissionRunViaPlugin,
   defaultPluginApiBase,
+  resolveRunRoot,
   MissionCancelError,
 } from "../src/harness/mission-cancel.js";
+import { registerLiveRun } from "../src/harness/live-runs.js";
 
 describe("mission cancel via plugin API", () => {
   afterEach(() => {
@@ -47,3 +53,86 @@ describe("mission cancel via plugin API", () => {
     }
   });
 });
+
+/* -------------------------------------------------------------------------- */
+/* Team-worker root resolution — the 2026-09-22 ENOENT incident               */
+/* -------------------------------------------------------------------------- */
+
+const iso = (offsetMs: number): string => new Date(Date.now() + offsetMs).toISOString();
+
+/** A project root holding one team worker whose control file sits in the worker tree. */
+async function teamWorkerFixture(status = "cancelled"): Promise<{ projectRoot: string; workerRoot: string; runId: string }> {
+  const projectRoot = await mkdtemp(path.join(tmpdir(), "uh-cancel-team-"));
+  await mkdir(path.join(projectRoot, ".harness"), { recursive: true });
+  await writeFile(path.join(projectRoot, ".harness", "project.yaml"), "schema_version: uh.project.v0\nname: cancel fixture\n");
+  const team = "wave-audit-0";
+  const runId = "20260922T100100Z-bbbbbb";
+  const workerRoot = path.join(projectRoot, ".harness", "missions", team, "team", "artifacts", "20260922T100000Z-parent", "workers", "runbook");
+  const runDir = path.join(workerRoot, ".harness", "missions", team, "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  await writeFile(path.join(runDir, "runtime-control.json"), JSON.stringify({
+    schema_version: "uh.runtime-control.v0", mission_id: team, run_id: runId, runtime: "command-code",
+    controller_pid: 4242, started_at: iso(-60_000), heartbeat_at: iso(-2_000),
+    status, turns: 2, denials: 0, inflight_tools: 0,
+  }));
+  await registerLiveRun({
+    projectRoot, artifactRoot: workerRoot, runId, missionId: team,
+    runtime: "command-code", controllerPid: 4242, team: { mission_id: team, role: "runbook" },
+  });
+  return { projectRoot, workerRoot, runId };
+}
+
+describe("mission cancel resolves the owning artifact root", () => {
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  test("from the project root a team worker run is found through the registry", async () => {
+    const { projectRoot, workerRoot, runId } = await teamWorkerFixture();
+    try {
+      await expect(resolveRunRoot(projectRoot, "wave-audit-0", runId)).resolves.toBe(workerRoot);
+      await expect(cancelLocalMissionRun(projectRoot, "wave-audit-0", runId))
+        .resolves.toEqual({ ok: true, status: "cancelled" });
+    } finally {
+      await rm(projectRoot, { recursive: true, force: true });
+    }
+  });
+
+  test("a run found only by the harness scan still resolves", async () => {
+    const { projectRoot, workerRoot, runId } = await teamWorkerFixture();
+    try {
+      await rm(path.join(projectRoot, ".harness", "live-runs"), { recursive: true, force: true });
+      await expect(resolveRunRoot(projectRoot, "wave-audit-0", runId)).resolves.toBe(workerRoot);
+    } finally {
+      await rm(projectRoot, { recursive: true, force: true });
+    }
+  });
+
+  test("an undiscoverable run is refused by code, not with a bare ENOENT", async () => {
+    const { projectRoot } = await teamWorkerFixture();
+    try {
+      await expect(resolveRunRoot(projectRoot, "wave-audit-0", "20260922T100200Z-cccccc"))
+        .rejects
+        .toMatchObject({ name: "MissionCancelError", code: "unknown_run" });
+    } finally {
+      await rm(projectRoot, { recursive: true, force: true });
+    }
+  });
+
+  test("a run directly under the given root keeps using that root", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "uh-cancel-plain-"));
+    const runId = "20260922T100300Z-dddddd";
+    const runDir = path.join(root, ".harness", "missions", "solo", "runs", runId);
+    await mkdir(runDir, { recursive: true });
+    await writeFile(path.join(runDir, "runtime-control.json"), JSON.stringify({
+      schema_version: "uh.runtime-control.v0", mission_id: "solo", run_id: runId, runtime: "codex",
+      controller_pid: 4242, started_at: iso(-60_000), heartbeat_at: iso(-2_000),
+      status: "cancelled", turns: 1, denials: 0, inflight_tools: 0,
+    }));
+    try {
+      await expect(resolveRunRoot(root, "solo", runId)).resolves.toBe(path.resolve(root));
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+});
diff --git a/tests/mission.test.ts b/tests/mission.test.ts
index e8c0f1f..d53403e 100644
--- a/tests/mission.test.ts
+++ b/tests/mission.test.ts
@@ -6,6 +6,7 @@ import { join } from "node:path";
 import { tmpdir } from "node:os";
 import { parse } from "yaml";
 import { createMission } from "../src/harness/mission.js";
+import { validateMission } from "../src/schema/mission.js";
 import { initializeHarness } from "../src/harness/init.js";
 import { validateFile } from "../src/harness/validate.js";
 
@@ -23,6 +24,15 @@ test.afterEach(async () => {
 });
 
 describe("createMission", () => {
+  test("rejects protected runtime paths as worker outputs", () => {
+    expect(() => validateMission({
+      schema_version: "uh.mission.v0",
+      id: "protected-output",
+      title: "Protected output",
+      workflow_profile: "research-docs",
+      expected_outputs: { files: ["./.harness/missions/protected-output/evidence.json"] },
+    })).toThrow(/protected runtime path/i);
+  });
   test("creates .harness/missions/<id>/mission.yaml with documented fields and validates", async () => {
     const result = await createMission(TEST_ROOT, {
       id: "docs-spine",
@@ -325,8 +335,9 @@ describe("uh mission create", () => {
     const missionPath = join(TEST_ROOT, ".harness", "missions", "cli-mission", "mission.yaml");
 
     const { stdout, stderr } = await execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
+      process.execPath,
       [
+        "--import", "tsx",
         "src/cli.ts",
         "mission",
         "create",
diff --git a/tests/native-tool-result.test.ts b/tests/native-tool-result.test.ts
new file mode 100644
index 0000000..4efd4ac
--- /dev/null
+++ b/tests/native-tool-result.test.ts
@@ -0,0 +1,57 @@
+import { nativeToolFailure } from "../src/harness/native-tool-result.js";
+
+describe("nativeToolFailure", () => {
+  test("a Command Code failure is the leading Exit code line of a text result block", () => {
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "text", text: "Exit code: 1\n<stderr text>" }] }))
+      .toEqual({ failed: true, exit_code: 1, source: "text" });
+  });
+
+  test("a leading Exit code 0 line is a Command Code success", () => {
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "text", text: "Exit code: 0\n<stdout text>" }] }))
+      .toEqual({ failed: false, exit_code: 0, source: "text" });
+  });
+
+  test("an Exit code line later in stdout is not a failure", () => {
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "text", text: "x\nExit code: 1\nx" }] }))
+      .toEqual({ failed: false, source: "none" });
+  });
+
+  test("text without an Exit code line is not a failure", () => {
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "text", text: "x" }] }))
+      .toEqual({ failed: false, source: "none" });
+  });
+
+  test("a malformed Exit code line is not an exit code", () => {
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "text", text: "Exit code: x\n" }] }))
+      .toEqual({ failed: false, source: "none" });
+  });
+
+  test("oh-my-pi isError semantics are unchanged", () => {
+    expect(nativeToolFailure({ type: "tool_execution_end", isError: true, result: { isError: true } }))
+      .toEqual({ failed: true, source: "field" });
+    expect(nativeToolFailure({ type: "tool_execution_end", isError: false, result: { isError: false } }))
+      .toEqual({ failed: false, source: "field" });
+  });
+
+  test("structured exit codes decide without reading text", () => {
+    expect(nativeToolFailure({ type: "tool_execution_end", result: { exitCode: 2 } }))
+      .toEqual({ failed: true, exit_code: 2, source: "field" });
+    expect(nativeToolFailure({ type: "tool_execution_end", result: { exit_code: 0 } }))
+      .toEqual({ failed: false, exit_code: 0, source: "field" });
+  });
+
+  test("an is_error field decides even when the text mentions exit codes", () => {
+    expect(nativeToolFailure({
+      type: "tool_execution_end",
+      result: { is_error: false, content: [{ type: "text", text: "Exit code: 1\nx" }] },
+    })).toEqual({ failed: false, source: "field" });
+  });
+
+  test("unknown shapes are not failures", () => {
+    expect(nativeToolFailure({ type: "tool_completed" })).toEqual({ failed: false, source: "none" });
+    expect(nativeToolFailure({ type: "tool_completed", result: { output: "Exit code: 3" } }))
+      .toEqual({ failed: false, source: "none" });
+    expect(nativeToolFailure({ type: "tool_completed", result: [{ type: "image", source: "x" }] }))
+      .toEqual({ failed: false, source: "none" });
+  });
+});
diff --git a/tests/oh-my-pi-route-overlay.test.ts b/tests/oh-my-pi-route-overlay.test.ts
new file mode 100644
index 0000000..1bd8038
--- /dev/null
+++ b/tests/oh-my-pi-route-overlay.test.ts
@@ -0,0 +1,106 @@
+import { afterAll, afterEach, beforeEach, describe, expect, test } from "vitest";
+import { mkdtempSync } from "node:fs";
+import { mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { parse } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { planOhMyPiRun, runOhMyPi, type OhMyPiRunner } from "../src/adapters/oh-my-pi.js";
+
+const ROOT = mkdtempSync(join(tmpdir(), "uh-test-omp-route-overlay-"));
+const SNAPSHOT_ROOT = join(ROOT, "snapshot");
+const SNAPSHOT_DIST = join(SNAPSHOT_ROOT, "dist");
+const MODEL = "openai-codex/gpt-5.6-luna";
+let previousDist: string | undefined;
+let previousCache: string | undefined;
+
+async function mission(id: string, extra = ""): Promise<string> {
+  const dir = join(ROOT, ".harness", "missions", id);
+  await mkdir(dir, { recursive: true });
+  const file = join(dir, "mission.yaml");
+  await writeFile(file, `schema_version: uh.mission.v0
+id: ${id}
+name: Overlay mission
+workflow_profile: research-docs
+verification:
+  checks: []
+${extra}`, "utf-8");
+  return file;
+}
+
+beforeEach(async () => {
+  await rm(ROOT, { recursive: true, force: true });
+  await mkdir(ROOT, { recursive: true });
+  await initializeHarness(ROOT);
+  await writeFile(join(ROOT, ".harness", "adapters", "oh-my-pi.yaml"), `schema_version: uh.adapter.v0
+id: oh-my-pi
+name: oh-my-pi
+runtime: oh-my-pi
+capabilities:
+  - cli-execution
+status: experimental
+config:
+  cli_command: omp
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    mode: json
+`, "utf-8");
+  const hook = join(SNAPSHOT_DIST, "extensions", "tool-guard", "omp.js");
+  await mkdir(join(SNAPSHOT_DIST, "extensions", "tool-guard"), { recursive: true });
+  await writeFile(hook, "export default function () {}\n");
+  previousDist = process.env.UH_HARNESS_DIST;
+  previousCache = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  process.env.UH_HARNESS_DIST = SNAPSHOT_DIST;
+  process.env.UH_RUNTIME_SNAPSHOT_CACHE = join(SNAPSHOT_ROOT, "cache");
+});
+afterEach(async () => {
+  if (previousDist === undefined) delete process.env.UH_HARNESS_DIST; else process.env.UH_HARNESS_DIST = previousDist;
+  if (previousCache === undefined) delete process.env.UH_RUNTIME_SNAPSHOT_CACHE; else process.env.UH_RUNTIME_SNAPSHOT_CACHE = previousCache;
+  await rm(ROOT, { recursive: true, force: true });
+});
+
+describe("oh-my-pi route overlay", () => {
+  test("an assigned model pins every role and removes the native sub-agent tool", async () => {
+    const plan = await planOhMyPiRun(ROOT, await mission("pinned", `runtime_config_overrides:\n  model: ${MODEL}\n`));
+    const overlay = plan.runtimeOverlay as { modelRoles: Record<string, string>; task: Record<string, unknown>; advisor: Record<string, unknown> };
+    for (const role of ["default", "smol", "slow", "plan", "task", "commit", "advisor", "tiny", "vision", "designer"]) {
+      expect(overlay.modelRoles[role]).toBe(MODEL);
+    }
+    expect(overlay.task).toEqual({ eager: "default", maxRecursionDepth: 0 });
+    expect(overlay.advisor).toEqual({ enabled: false });
+  });
+
+  test("without an assigned model roles are untouched but sub-agents stay off", async () => {
+    const plan = await planOhMyPiRun(ROOT, await mission("unpinned"));
+    const overlay = plan.runtimeOverlay as Record<string, unknown>;
+    expect(overlay.modelRoles).toBeUndefined();
+    expect(overlay.task).toEqual({ eager: "default", maxRecursionDepth: 0 });
+  });
+
+  test("allow_native_subagents keeps one level of delegation on pinned roles, never eager", async () => {
+    const plan = await planOhMyPiRun(ROOT, await mission("delegating", `guard:\n  allow_native_subagents: true\nruntime_config_overrides:\n  model: ${MODEL}\n`));
+    const overlay = plan.runtimeOverlay as { modelRoles: Record<string, string>; task: Record<string, unknown> };
+    expect(overlay.task).toEqual({ eager: "default", maxRecursionDepth: 1 });
+    expect(overlay.modelRoles.smol).toBe(MODEL);
+  });
+
+  test("the run writes the overlay beside its artifacts and passes it before the prompt", async () => {
+    const file = await mission("launched", `runtime_config_overrides:\n  model: ${MODEL}\n`);
+    let seen: string[] = [];
+    const final = JSON.stringify({ type: "message_end", message: { role: "assistant", content: [{ type: "text", text: "done" }], provider: "openai-codex", model: "gpt-5.6-luna" } });
+    const runner: OhMyPiRunner = async (input) => { seen = input.args; return { stdout: `${final}\n`, stderr: "", exitCode: 0, timedOut: false }; };
+    await runOhMyPi(ROOT, file, { runner, collectDiff: async () => ({ patch: "" }), runId: "overlay-run" });
+    const flag = seen.indexOf("--config");
+    expect(flag).toBeGreaterThan(-1);
+    expect(flag).toBeLessThan(seen.indexOf("--no-title"));
+    const overlayPath = seen[flag + 1];
+    expect(overlayPath.replaceAll("\\", "/")).toContain(".harness/missions/launched/runs/overlay-run/omp-overlay.yml");
+    const written = parse(await readFile(overlayPath, "utf-8")) as { modelRoles: Record<string, string>; task: { maxRecursionDepth: number } };
+    expect(written.modelRoles.smol).toBe(MODEL);
+    expect(written.task.maxRecursionDepth).toBe(0);
+  });
+});
+afterAll(async () => {
+  await rm(ROOT, { recursive: true, force: true });
+});
diff --git a/tests/oh-my-pi.test.ts b/tests/oh-my-pi.test.ts
index 76194b6..12faeb8 100644
--- a/tests/oh-my-pi.test.ts
+++ b/tests/oh-my-pi.test.ts
@@ -1,11 +1,14 @@
-import { test, expect, describe, beforeAll } from "vitest";
-import { mkdir, rm, writeFile, readFile } from "node:fs/promises";
-import { join } from "node:path";
+import { test, expect, describe, beforeAll, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
+import { cp, mkdir, rm, writeFile, readFile, realpath } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path, { join } from "node:path";
 import { parse } from "yaml";
 import { initializeHarness } from "../src/harness/init.js";
 import { validateFile } from "../src/harness/validate.js";
 import {
   checkOhMyPi,
+  defaultOhMyPiRunner,
   detectOhMyPiQuotaError,
   dryRunOhMyPi,
   parseOhMyPiOutput,
@@ -14,13 +17,30 @@ import {
   type DiffCollector,
   type OhMyPiRunner,
 } from "../src/adapters/oh-my-pi.js";
+import { recoveryPrompt } from "../src/harness/runtime-recovery.js";
+import { waitForTerminated } from "./process-state.js";
 
-const TEST_ROOT = "/tmp/uh-test-oh-my-pi-adapter";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-oh-my-pi-adapter-"));
+const SNAPSHOT_ROOT = join(TEST_ROOT, "snapshot");
+const SNAPSHOT_DIST = join(SNAPSHOT_ROOT, "dist");
+let previousDist: string | undefined;
+let previousCache: string | undefined;
 
 async function cleanup() {
   try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
 }
 
+function restoreSnapshotEnv() {
+  if (previousDist === undefined) delete process.env.UH_HARNESS_DIST; else process.env.UH_HARNESS_DIST = previousDist;
+  if (previousCache === undefined) delete process.env.UH_RUNTIME_SNAPSHOT_CACHE; else process.env.UH_RUNTIME_SNAPSHOT_CACHE = previousCache;
+}
+
+async function writeSnapshotHook() {
+  const hook = join(SNAPSHOT_DIST, "extensions", "tool-guard", "omp.js");
+  await mkdir(path.dirname(hook), { recursive: true });
+  await writeFile(hook, "export default function () {}\n");
+}
+
 async function writeOhMyPiManifest(overrides = "", mode = "json") {
   await writeFile(
     join(TEST_ROOT, ".harness", "adapters", "oh-my-pi.yaml"),
@@ -76,8 +96,17 @@ test.beforeEach(async () => {
   await mkdir(TEST_ROOT, { recursive: true });
   await initializeHarness(TEST_ROOT);
   await writeOhMyPiManifest();
+  await writeSnapshotHook();
+  previousDist = process.env.UH_HARNESS_DIST;
+  previousCache = process.env.UH_RUNTIME_SNAPSHOT_CACHE;
+  process.env.UH_HARNESS_DIST = SNAPSHOT_DIST;
+  process.env.UH_RUNTIME_SNAPSHOT_CACHE = join(SNAPSHOT_ROOT, "cache");
 });
-test.afterEach(cleanup);
+test.afterEach(async () => {
+  restoreSnapshotEnv();
+  await cleanup();
+});
+test.afterAll(cleanup);
 
 describe("uh adapter check oh-my-pi", () => {
   test("returns valid check result when omp is installed", async () => {
@@ -115,7 +144,6 @@ describe("uh mission dry-run --runtime oh-my-pi", () => {
       "--print",
       "--mode",
       "json",
-      "--no-session",
       "--no-extensions",
       "--no-skills",
       "--no-title",
@@ -135,51 +163,7 @@ describe("uh mission dry-run --runtime oh-my-pi", () => {
     expect(session.args).toEqual(result.args);
   });
 
-  test("surfaces rpc-ui mode errors in the run plan", async () => {
-    await writeOhMyPiManifest("", "rpc-ui");
-    const { missionPath } = await writeHarnessMission("bad-rpc-ui");
 
-    const result = await planOhMyPiRun(TEST_ROOT, missionPath);
-
-    expect(result.errors).toContain("oh-my-pi mode rpc-ui expects a TUI parent; use mode: json, text, or rpc for headless runs");
-  });
-
-  test("merges mission runtime_config_overrides on top of adapter defaults", async () => {
-    const { missionDir, missionPath } = await writeHarnessMission("override-model");
-    await writeFile(missionPath, `schema_version: uh.mission.v0
-id: override-model
-name: Override Model
-description: Use Anthropic via OMP for this mission.
-workflow_profile: research-docs
-issues: []
-read_first: []
-expected_artifacts: []
-verification:
-  checks: []
-runtime_config_overrides:
-  model: anthropic/claude-opus-4-7
-  thinking: high
-`, "utf-8");
-
-    const result = await planOhMyPiRun(TEST_ROOT, missionPath);
-
-    expect(result.errors).toEqual([]);
-    expect(result.args).toEqual([
-      "--print",
-      "--model",
-      "anthropic/claude-opus-4-7",
-      "--thinking",
-      "high",
-      "--mode",
-      "json",
-      "--no-session",
-      "--no-extensions",
-      "--no-skills",
-      "--no-title",
-      result.prompt,
-    ]);
-    expect(missionDir).toContain("override-model");
-  });
 
   test("rejects typos in mission runtime_config_overrides via strict schema", async () => {
     const { missionPath } = await writeHarnessMission("typo-override");
@@ -254,17 +238,31 @@ describe("oh-my-pi output parsing", () => {
     expect(result.finalMessage).toBe("final");
   });
 
-  test("tolerates malformed JSON lines", () => {
-    const result = parseOhMyPiOutput('{"type":"message","role":"assistant","content":"ok"}\nNOT_JSON\n{"type":"result","text":"done"}\n');
-
-    expect(result.events).toEqual([
-      { type: "message", role: "assistant", content: "ok" },
-      { type: "result", text: "done" },
-    ]);
+  test("tolerates malformed JSON lines without persisting snippets", () => {
+    const result = parseOhMyPiOutput('{"type":"message","role":"assistant","content":"ok"}\n{"secret":"PRIVATE_PAYLOAD"} trailing\n{"type":"result","text":"done"}\n');
     expect(result.parseErrors).toHaveLength(1);
-    expect(result.parseErrors[0]).toContain("line 2");
+    expect(result.parseErrors[0]).toBe("OhMyPi JSON parse error on line 2");
+    expect(result.parseErrors[0]).not.toContain("PRIVATE_PAYLOAD");
     expect(result.finalMessage).toBe("done");
   });
+  test("extracts typed content arrays from nested native message events", () => {
+    const result = parseOhMyPiOutput(JSON.stringify({
+      type: "message_end",
+      message: {
+        role: "assistant",
+        content: [{ type: "thinking", thinking: "private" }, { type: "text", text: "native final" }],
+      },
+    }));
+    expect(result.finalMessage).toBe("native final");
+  });
+
+  test("does not classify response ids or assistant text as auth failures", () => {
+    const stdout = [
+      JSON.stringify({ type: "message_end", message: { role: "assistant", content: "response 401 and 403 are ordinary ids" }, responseId: "resp_401" }),
+      JSON.stringify({ type: "agent_end", messages: [{ role: "assistant", content: "done" }] }),
+    ].join("\n");
+    expect(detectOhMyPiQuotaError(stdout, "")).toBeNull();
+  });
 
   test("detects quota and auth failures", () => {
     expect(detectOhMyPiQuotaError("", "401 Unauthorized")).toContain("oh-my-pi auth or quota error");
@@ -272,13 +270,87 @@ describe("oh-my-pi output parsing", () => {
     expect(detectOhMyPiQuotaError("", "API key missing")).toContain("oh-my-pi auth or quota error");
     expect(detectOhMyPiQuotaError("all good", "")).toBeNull();
   });
+  test("classifies structured native message diagnostics without nested payloads", () => {
+    expect(detectOhMyPiQuotaError(JSON.stringify({
+      type: "message_end",
+      message: { role: "assistant", errorMessage: "authentication required" },
+    }), "")).toContain("auth or quota");
+    expect(detectOhMyPiQuotaError(JSON.stringify({
+      type: "message_end",
+      message: { role: "assistant", status: 401, responseId: "resp_401" },
+    }), "")).toContain("auth or quota");
+    expect(detectOhMyPiQuotaError(JSON.stringify({
+      type: "message_end",
+      message: { role: "assistant", error: { responseId: "resp_401" } },
+    }), "")).toBeNull();
+  });
+  test("streams UTF-8 child output before close and reports callback rejection", async () => {
+    const script = [
+      "const first = JSON.stringify({type:'tool_execution_start',cwd:process.cwd()});",
+      "process.stdout.write(first + '\\n');",
+      "setTimeout(() => {",
+      "  const final = Buffer.from(JSON.stringify({type:'message',role:'assistant',content:[{type:'text',text:'é'}]}));",
+      "  process.stdout.write(final.subarray(0, final.length - 1));",
+      "  setImmediate(() => process.stdout.write(final.subarray(final.length - 1)));",
+      "}, 20);",
+    ].join("");
+    let sawProgressBeforeClose = false;
+    const result = await defaultOhMyPiRunner({
+      command: process.execPath,
+      args: ["-e", script],
+      cwd: TEST_ROOT,
+      onStdoutChunk: async (chunk) => {
+        if (chunk.includes("tool_execution_start")) sawProgressBeforeClose = true;
+      },
+    });
+    expect(result.spawnError).toBeUndefined();
+    expect(result.stdout).toContain("é");
+    expect(sawProgressBeforeClose).toBe(true);
+
+    const rejected = await defaultOhMyPiRunner({
+      command: process.execPath,
+      args: ["-e", "process.stdout.write('{}')"],
+      cwd: TEST_ROOT,
+      onStdoutChunk: () => Promise.reject(new Error("callback boom")),
+    });
+    expect(rejected.spawnError).toContain("callback boom");
+  });
+  test("cancellation signal terminates the owned runtime process tree", async () => {
+    const script = [
+      "const { spawn } = require('node:child_process');",
+      "const child = spawn(process.execPath, ['-e', 'setInterval(() => {}, 1000000)'], { stdio: 'ignore' });",
+      "process.stdout.write(String(child.pid) + '\\n');",
+      "setInterval(() => {}, 1000000);",
+    ].join("");
+    const controller = new AbortController();
+    let resolveChildPid!: (pid: number) => void;
+    const childReady = new Promise<number>((resolve) => {
+      resolveChildPid = resolve;
+    });
+    const resultPromise = defaultOhMyPiRunner({
+      command: process.execPath,
+      args: ["-e", script],
+      cwd: TEST_ROOT,
+      cancellationSignal: controller.signal,
+      onStdoutChunk: (chunk) => {
+        const pid = Number.parseInt(chunk.trim(), 10);
+        if (Number.isInteger(pid) && pid > 0) resolveChildPid(pid);
+      },
+    });
+    const childPid = await childReady;
+    controller.abort();
+    const result = await resultPromise;
+
+    expect(result.exitCode).not.toBe(0);
+    await waitForTerminated(childPid);
+  });
 });
 
 describe("uh mission run --runtime oh-my-pi", () => {
   test("persists success artifacts with oh-my-pi events and runtime result", async () => {
     const { missionDir, missionPath } = await writeHarnessMission("run-success");
     const runner: OhMyPiRunner = async () => ({
-      stdout: '{"type":"message","role":"assistant","content":"oh-my-pi completed the mission."}\n',
+      stdout: '{"type":"message","role":"assistant","content":"oh-my-pi completed the mission.","provider":"openai-codex","model":"gpt-5.6-luna","usage":{"input":11,"output":7,"totalTokens":18}}\n',
       stderr: "",
       exitCode: 0,
       timedOut: false,
@@ -300,7 +372,6 @@ describe("uh mission run --runtime oh-my-pi", () => {
       "runtime.started",
       "oh-my-pi.message",
       "runtime.finished",
-      "runtime.usage",
     ]);
     const runtimeResultPath = join(missionDir, "runtime-result.yaml");
     expect(await validateFile(runtimeResultPath)).toMatchObject({ valid: true, schema_version: "uh.runtime-result.v0" });
@@ -312,6 +383,114 @@ describe("uh mission run --runtime oh-my-pi", () => {
       stdout_path: `.harness/missions/run-success/runs/${runId}/runtime.stdout.log`,
       stderr_path: `.harness/missions/run-success/runs/${runId}/runtime.stderr.log`,
     });
+    expect(runtimeResult).toMatchObject({
+      provider: "openai-codex",
+      model: "gpt-5.6-luna",
+    });
+  });
+  test("aggregates assistant message_end usage once across turns", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("multi-turn-usage");
+    const events = [
+      { type: "message_update", assistantMessageEvent: { usage: { input: 999, output: 999 } } },
+      { type: "message_end", message: { role: "assistant", provider: "openai-codex", model: "gpt-5.6-luna", usage: { input: 10, output: 2, cacheRead: 4, totalTokens: 16, cost: { total: 0.1 } } } },
+      { type: "agent_end", messages: [{ role: "assistant", usage: { input: 10, output: 2, cacheRead: 4, totalTokens: 16 } }] },
+      { type: "message_end", message: { role: "assistant", content: "done", usage: { input: 20, output: 3, cacheRead: 6, totalTokens: 29, cost: { total: 0.2 } } } },
+    ];
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout: events.map((event) => JSON.stringify(event)).join("\n"), stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result?.status).toBe("passed");
+    const persisted = parse(await readFile(join(missionDir, "runtime-result.yaml"), "utf-8"));
+    expect(persisted.usage).toMatchObject({
+      input_tokens: 30,
+      output_tokens: 5,
+      total_tokens: 45,
+      cache_read_tokens: 10,
+      source: "runtime",
+    });
+    expect(persisted.cost_usd).toBeCloseTo(0.3);
+  });
+  test("retains mixed-route spend without last-model attribution or masked invalid counters", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("mixed-route-accounting");
+    const events = [
+      { type: "message_end", message: { role: "assistant", provider: "provider-a", model: "model-a", content: "first", usage: { input: -1, output: 2, totalTokens: 10, cost: { total: 0.05 } } } },
+      { type: "message_end", message: { role: "assistant", provider: "provider-b", model: "model-b", content: "done", usage: { input: 11, output: 3, totalTokens: 15, cost: { total: 0.05 } } } },
+    ];
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout: events.map(event => JSON.stringify(event)).join("\n"), stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result?.status).toBe("passed");
+    const persisted = parse(await readFile(join(missionDir, "runtime-result.yaml"), "utf-8"));
+    expect(persisted.cost_usd).toBeCloseTo(0.1);
+    expect(persisted.usage.output_tokens).toBe(5);
+    expect(persisted.usage.input_tokens).toBeUndefined();
+    expect(persisted.provider).toBeUndefined();
+    expect(persisted.model).toBeUndefined();
+    expect(persisted.usage.provider).toBeUndefined();
+    expect(persisted.usage.model).toBeUndefined();
+    const restricted = await runOhMyPi(TEST_ROOT, missionPath, {
+      extraRuntimeConfigOverrides: { model: "provider-a/model-a" },
+      runner: async () => ({ stdout: events.map(event => JSON.stringify(event)).join("\n"), stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(restricted.exitCode).not.toBe(0);
+    expect(restricted.result?.status).toBe("failed");
+  });
+  test("normalizes generic native error envelopes after assistant text", async () => {
+    const { missionPath } = await writeHarnessMission("native-generic-error");
+    const stdout = [
+      JSON.stringify({ type: "message_end", message: { role: "assistant", content: "earlier success" } }),
+      JSON.stringify({ type: "error", error: { status: 500, message: "private internal payload" } }),
+    ].join("\n");
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.exitCode).toBe(1);
+    expect(result.result?.status).toBe("failed");
+    expect(result.result?.errors).toContain("oh-my-pi runtime reported terminal failure");
+    expect(result.result?.errors.join("\n")).not.toContain("private internal payload");
+  });
+  test("counts distinct explicit native usage identities with identical bodies once each", async () => {
+    const { missionPath } = await writeHarnessMission("usage-identities");
+    const usage = { input: 4, output: 2, totalTokens: 6, cost: { total: 0.05 } };
+    const stdout = [
+      JSON.stringify({ type: "message_end", id: "event-a", message: { role: "assistant", content: "turn", usage } }),
+      JSON.stringify({ type: "message_end", id: "event-b", message: { role: "assistant", content: "turn", usage } }),
+      JSON.stringify({ type: "message_end", id: "event-b", message: { role: "assistant", content: "turn", usage } }),
+    ].join("\n");
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result?.status).toBe("passed");
+    const persisted = parse(await readFile(join(TEST_ROOT, ".harness", "missions", "usage-identities", "runtime-result.yaml"), "utf-8"));
+    expect(persisted.usage).toMatchObject({
+      input_tokens: 8,
+      output_tokens: 4,
+      total_tokens: 12,
+      source: "runtime",
+    });
+    expect(persisted.cost_usd).toBeCloseTo(0.1);
+  });
+
+
+
+  test("native terminal error overrides an earlier assistant success", async () => {
+    const { missionPath } = await writeHarnessMission("native-terminal-error");
+    const stdout = [
+      JSON.stringify({ type: "message_end", message: { role: "assistant", content: "earlier success" } }),
+      JSON.stringify({ type: "message_end", message: { role: "assistant", stopReason: "error", errorMessage: "private provider payload" } }),
+    ].join("\n");
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.result?.status).toBe("failed");
+    expect(result.result?.errors).toContain("oh-my-pi runtime reported terminal failure: error");
+    expect(result.result?.errors.join("\n")).not.toContain("private provider payload");
   });
 
   test("classifies quota failures as blocked", async () => {
@@ -330,6 +509,139 @@ describe("uh mission run --runtime oh-my-pi", () => {
     expect(result.result?.errors.some((error) => /api key/i.test(error))).toBe(true);
   });
 
+  test("native terminal error in agent_end messages overrides earlier assistant success", async () => {
+    const { missionPath } = await writeHarnessMission("native-terminal-aborted");
+    const stdout = [
+      JSON.stringify({ type: "message_end", message: { role: "assistant", content: "earlier success" } }),
+      JSON.stringify({ type: "agent_end", messages: [{ role: "assistant", stopReason: "aborted", errorMessage: "private provider payload" }] }),
+    ].join("\n");
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner: async () => ({ stdout, stderr: "", exitCode: 0, timedOut: false }),
+      collectDiff: async () => ({ patch: "" }),
+    });
+    expect(result.exitCode).toBe(1);
+    expect(result.result?.status).toBe("failed");
+    expect(result.result?.errors).toContain("oh-my-pi runtime reported terminal failure: aborted");
+    expect(result.result?.errors.join("\n")).not.toContain("private provider payload");
+  });
+  test("persists stream events before the runner returns", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("live-events");
+    const runId = "test-omp-live-events";
+    const toolStart = JSON.stringify({ type: "tool_execution_start", toolName: "read" });
+    const toolEnd = JSON.stringify({ type: "tool_execution_end", toolName: "read" });
+    const final = JSON.stringify({
+      type: "message_end",
+      message: {
+        role: "assistant",
+        content: [{ type: "text", text: "live final" }],
+        provider: "openai-codex",
+        model: "gpt-5.6-luna",
+        usage: { input: 3, output: 2, totalTokens: 5 },
+      },
+    });
+    const runner: OhMyPiRunner = async (input) => {
+      await input.onStdoutChunk?.(`${toolStart}\n`);
+      const liveEvents = await readFile(join(missionDir, "runs", runId, "events.ndjson"), "utf-8");
+      expect(liveEvents).toContain('"event":"oh-my-pi.tool_execution_start"');
+      await input.onStdoutChunk?.(`${toolEnd}\n${final}\n`);
+      return { stdout: `${toolStart}\n${toolEnd}\n${final}\n`, stderr: "", exitCode: 0, timedOut: false };
+    };
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runner,
+      collectDiff: async () => ({ patch: "" }),
+      runId,
+    });
+    expect(result.result?.status).toBe("passed");
+    const events = (await readFile(join(missionDir, "runs", runId, "events.ndjson"), "utf-8"))
+      .trim().split("\n").map((line) => JSON.parse(line));
+    expect(events.map((event) => event.event)).toContain("oh-my-pi.tool_execution_end");
+  });
+  test("writes canonical host artifacts while a real child stays in sandbox cwd", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("canonical-live");
+    const sandboxRoot = join(TEST_ROOT, "sandbox-worktree");
+    await cp(join(TEST_ROOT, ".harness"), join(sandboxRoot, ".harness"), { recursive: true });
+    const sandboxMissionPath = join(sandboxRoot, ".harness", "missions", "canonical-live", "mission.yaml");
+    const runId = "test-omp-canonical-live";
+    const script = [
+      "process.stdout.write(JSON.stringify({type:'tool_execution_start',cwd:process.cwd()})+'\\n');",
+      "setTimeout(() => process.stdout.write(JSON.stringify({type:'message',role:'assistant',content:'canonical done'})), 20);",
+    ].join("");
+    let sawCanonicalProgress = false;
+    const runner: OhMyPiRunner = async (input) => defaultOhMyPiRunner({
+      ...input,
+      command: process.execPath,
+      args: ["-e", script],
+      onStdoutChunk: async (chunk) => {
+        await input.onStdoutChunk?.(chunk);
+        if (chunk.includes("tool_execution_start")) {
+          const startLine = chunk.split(/\r?\n/).find((line) => line.includes("tool_execution_start"));
+          expect(startLine).toBeDefined();
+          const events = await readFile(join(missionDir, "runs", runId, "events.ndjson"), "utf-8");
+          sawCanonicalProgress = events.includes('"event":"oh-my-pi.tool_execution_start"');
+          // The child reports the resolved cwd, so compare against the real
+          // path: on macOS /tmp is a symlink to /private/tmp.
+          expect(JSON.parse(startLine!).cwd).toBe(await realpath(sandboxRoot));
+        }
+      },
+    });
+    const result = await runOhMyPi(sandboxRoot, sandboxMissionPath, {
+      runner,
+      artifactRoot: TEST_ROOT,
+      collectDiff: async (cwd) => {
+        expect(cwd).toBe(sandboxRoot);
+        return { patch: "" };
+      },
+      runId,
+    });
+    expect(result.result?.status).toBe("passed");
+    expect(sawCanonicalProgress).toBe(true);
+    expect(await readFile(join(missionDir, "runs", runId, "runtime-result.yaml"), "utf-8")).toContain("status: passed");
+    expect(await readFile(join(TEST_ROOT, ".harness", "missions", "canonical-live", "latest.json"), "utf-8")).toContain(runId);
+  });
+
+  test("terminalizes the canonical run when a live event append fails", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("stream-write-failure");
+    const runId = "test-omp-stream-write-failure";
+    const eventPath = join(missionDir, "runs", runId, "events.ndjson");
+    const result = await runOhMyPi(TEST_ROOT, missionPath, {
+      runId,
+      collectDiff: async () => ({ patch: "" }),
+      runner: async (input) => {
+        await rm(eventPath, { force: true });
+        await mkdir(eventPath);
+        const stdout = `${JSON.stringify({ type: "tool_execution_start", toolName: "synthetic" })}\n`;
+        await input.onStdoutChunk?.(stdout);
+        return { stdout, stderr: "", exitCode: 0, timedOut: false };
+      },
+    });
+    expect(result.exitCode).not.toBe(0);
+    expect(result.result?.status).toBe("failed");
+    const latest = JSON.parse(await readFile(join(missionDir, "latest.json"), "utf8"));
+    const index = JSON.parse(await readFile(join(missionDir, "runs", "index.json"), "utf8"));
+    expect(latest).toMatchObject({ run_id: runId, status: "failed" });
+    expect(index.runs.find((run: { run_id: string }) => run.run_id === runId)?.status).toBe("failed");
+    expect(parse(await readFile(join(missionDir, "runs", runId, "runtime-result.yaml"), "utf8")).status).toBe("failed");
+  });
+  test("rejects reuse of an attempt without replacing its existing evidence or launching a child", async () => {
+    const { missionDir, missionPath } = await writeHarnessMission("initial-write-failure");
+    const runId = "test-omp-initial-write-failure";
+    const eventPath = join(missionDir, "runs", runId, "events.ndjson");
+    await mkdir(join(missionDir, "runs", runId), { recursive: true });
+    await writeFile(eventPath, "prior attempt evidence\n");
+    let childStarted = false;
+    await expect(runOhMyPi(TEST_ROOT, missionPath, {
+      runId,
+      runner: async () => {
+        childStarted = true;
+        return { stdout: "", stderr: "", exitCode: 0, timedOut: false };
+      },
+      collectDiff: async () => ({ patch: "" }),
+    })).rejects.toThrow();
+    expect(childStarted).toBe(false);
+    expect(await readFile(eventPath, "utf8")).toBe("prior attempt evidence\n");
+  });
+
+
   test("blocks when oh-my-pi exits zero without a final assistant message", async () => {
     const { missionDir, missionPath } = await writeHarnessMission("missing-final");
     const runner: OhMyPiRunner = async () => ({
@@ -349,3 +661,35 @@ describe("uh mission run --runtime oh-my-pi", () => {
     expect(await readFile(join(missionDir, "runs", runId, "runtime-final.txt"), "utf-8")).toBe("");
   });
 });
+test("guard policy artifact and explicit extension are added only for guarded missions", async () => {
+  const { missionDir, missionPath } = await writeHarnessMission("guarded-omp");
+  await writeFile(missionPath, `${await readFile(missionPath, "utf8")}guard:\n  write_roots:\n    - out\n`);
+  let seenInput: { args: string[]; env?: NodeJS.ProcessEnv } | undefined;
+  const stdout = JSON.stringify({ type: "run_end", result: { finalText: "Complete", stopReason: "end_turn" } });
+  const result = await runOhMyPi(TEST_ROOT, missionPath, {
+    runId: "guarded-run",
+    runner: async input => {
+      seenInput = { args: input.args, env: input.env };
+      return { stdout, stderr: "", exitCode: 0, timedOut: false };
+    },
+    collectDiff: async () => ({ patch: "" }),
+  });
+  expect(result.result?.status).toBe("blocked");
+  expect(seenInput?.args).toContain("-e");
+  expect(seenInput?.args.some(value => /tool-guard[\\/]+omp\.js/.test(value))).toBe(true);
+  const hookArg = seenInput!.args[seenInput!.args.indexOf("-e") + 1];
+  expect(hookArg.startsWith(path.resolve(join(SNAPSHOT_ROOT, "cache")))).toBe(true);
+  expect(hookArg).not.toContain(join("snapshot", "dist"));
+  expect(seenInput?.env?.UH_TOOL_GUARD_POLICY).toContain("tool-guard.json");
+  expect(parse(await readFile(join(missionDir, "runs", "guarded-run", "tool-guard.json"), "utf8"))).toMatchObject({ schema_version: "uh.tool-guard.v0", write_roots: ["out"] });
+});
+test("deadline recovery prompt includes one mandatory delivery instruction", () => {
+  const prompt = recoveryPrompt({
+    sourceRunId: "deadline-source",
+    sessionId: "saved-session",
+    grace: true,
+    notes: 'Policy note.\nYour time budget is exhausted. Write your deliverable now with everything you have found so far. Mark it clearly as INCOMPLETE at the top, and end it with a section titled "Missing for the next step" listing what you did not get to and where you stopped. Do not start new investigation. Then stop.',
+  });
+  expect(prompt.match(/Your time budget is exhausted\./g)).toHaveLength(1);
+  expect(prompt).toContain('section titled "Missing for the next step"');
+});
diff --git a/tests/openrouter.test.ts b/tests/openrouter.test.ts
index 883e4c8..f51db26 100644
--- a/tests/openrouter.test.ts
+++ b/tests/openrouter.test.ts
@@ -1,6 +1,8 @@
-import { test, expect, describe, beforeEach, afterEach } from "vitest";
+import { test, expect, describe, beforeEach, afterEach, afterAll } from "vitest";
 import * as http from "node:http";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import {
   OpenRouterRuntimeConfigSchema,
@@ -118,7 +120,10 @@ describe("openrouter runtime checker", () => {
   });
 });
 
-const TEST_ROOT = "/tmp/uh-test-openrouter";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-openrouter-"));
+afterAll(async () => {
+  await rm(TEST_ROOT, { recursive: true, force: true });
+});
 
 async function setupHarness(): Promise<{ missionPath: string }> {
   await rm(TEST_ROOT, { recursive: true, force: true });
diff --git a/tests/otel-export.test.ts b/tests/otel-export.test.ts
new file mode 100644
index 0000000..6c1c0f0
--- /dev/null
+++ b/tests/otel-export.test.ts
@@ -0,0 +1,611 @@
+import { mkdtemp, writeFile, mkdir, rm } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { describe, expect, test, afterEach } from "vitest";
+import { exportRunToOtlp, type OtlpTraceExport } from "../src/harness/otel-export.js";
+
+let root: string;
+
+afterEach(async () => {
+  if (root) await rm(root, { recursive: true, force: true });
+});
+
+const MODEL = "claude-sonnet-4-20250514";
+const PROVIDER = "anthropic";
+const RUN_ID = "run-test-001";
+const SESSION_ID = "sess-abc-123";
+const RUNTIME = "oh-my-pi";
+const MISSION_ID = "mission-otel-test";
+
+function baseRunDir(): string {
+  return join(root, ".harness", "missions", MISSION_ID, "runs", RUN_ID);
+}
+
+async function writeControl(overrides?: Partial<Record<string, unknown>>): Promise<void> {
+  const dir = baseRunDir();
+  await mkdir(dir, { recursive: true });
+  await writeFile(
+    join(dir, "runtime-control.json"),
+    JSON.stringify({
+      schema_version: "uh.runtime-control.v0",
+      mission_id: MISSION_ID,
+      run_id: RUN_ID,
+      runtime: RUNTIME,
+      controller_pid: 12345,
+      started_at: "2025-09-01T00:00:00.000Z",
+      heartbeat_at: "2025-09-01T00:01:00.000Z",
+      status: "passed",
+      turns: 3,
+      denials: 0,
+      inflight_tools: 0,
+      session_id: SESSION_ID,
+      ...overrides,
+    }),
+    "utf-8",
+  );
+}
+
+async function writeResult(overrides?: Partial<Record<string, unknown>>): Promise<void> {
+  const dir = baseRunDir();
+  await mkdir(dir, { recursive: true });
+  await writeFile(
+    join(dir, "runtime-result.yaml"),
+    [
+      "schema_version: uh.runtime-result.v0",
+      `mission_id: "${MISSION_ID}"`,
+      `runtime: "${RUNTIME}"`,
+      `status: "${overrides?.status ?? "passed"}"`,
+      `started_at: "2025-09-01T00:00:00.000Z"`,
+      `finished_at: "2025-09-01T00:01:00.000Z"`,
+      `model: "${MODEL}"`,
+      `provider: "${PROVIDER}"`,
+      `usage:`,
+      `  input_tokens: 1500`,
+      `  output_tokens: 200`,
+      `  total_tokens: 1700`,
+      `  source: runtime`,
+      `cost_usd: 0.042`,
+      `cost_basis: provider_reported`,
+      "errors: []",
+      ...(overrides?.stop_code ? [`stop_code: ${overrides.stop_code}`] : []),
+    ].join("\n"),
+    "utf-8",
+  );
+}
+
+function eventLine(obj: Record<string, unknown>): string {
+  return JSON.stringify(obj);
+}
+
+async function writeEvents(lines: string[]): Promise<void> {
+  const dir = baseRunDir();
+  await mkdir(dir, { recursive: true });
+  await writeFile(join(dir, "events.ndjson"), lines.join("\n") + "\n", "utf-8");
+}
+
+function makeUsageEvent(overrides: Record<string, unknown> = {}): Record<string, unknown> {
+  return {
+    type: "message_end",
+    message: {
+      role: "assistant",
+      model: MODEL,
+      provider: PROVIDER,
+      usage: { input: 100, output: 50, totalTokens: 150, cacheRead: 10, cacheWrite: 5 },
+      content: "SECRET-DO-NOT-EXPORT",
+    },
+    ...overrides,
+  };
+}
+
+function makeDeltaEvents(count: number): string[] {
+  const types = [
+    "message_update",
+    "tool_execution_update",
+    "tool_stream_update",
+    "thinking_delta",
+    "text_delta",
+  ];
+  const lines: string[] = [];
+  for (let i = 0; i < count; i++) {
+    const type = types[i % types.length];
+    lines.push(
+      eventLine({
+        type,
+        message: { role: "assistant", content: `delta chunk ${i}` },
+        toolCallId: `tc-${i}`,
+        text: `streaming chunk ${i}`,
+      }),
+    );
+  }
+  return lines;
+}
+
+function makeToolStart(toolCallId: string, toolName: string, input?: Record<string, unknown>): string {
+  return eventLine({
+    type: "tool_execution_start",
+    toolCallId,
+    toolName,
+    ...(input ? { input } : {}),
+  });
+}
+
+function makeToolEnd(toolCallId: string, opts?: { isError?: boolean; command?: string }): string {
+  return eventLine({
+    type: "tool_execution_end",
+    toolCallId,
+    isError: opts?.isError ?? false,
+    result: {
+      content: [{ text: "SECRET-DO-NOT-EXPORT result" }],
+      ...(opts?.command ? { command: opts.command } : {}),
+    },
+  });
+}
+
+async function buildFixture(opts?: {
+  usageEvents?: number;
+  toolStarts?: Array<{ id: string; name: string; input?: Record<string, unknown> }>;
+  toolEnds?: Array<{ id: string; isError?: boolean; command?: string }>;
+  corruptLine?: boolean;
+  controlOverrides?: Partial<Record<string, unknown>>;
+  resultOverrides?: Partial<Record<string, unknown>>;
+}): Promise<void> {
+  root = await mkdtemp(join(tmpdir(), "otel-test-"));
+  await writeControl(opts?.controlOverrides);
+  await writeResult(opts?.resultOverrides);
+
+  const events: string[] = [];
+  events.push(
+    eventLine({ type: "turn_start", timestamp: "2025-09-01T00:00:01.000Z" }),
+  );
+
+  // Tool starts and ends
+  if (opts?.toolStarts) {
+    for (const t of opts.toolStarts) {
+      events.push(makeToolStart(t.id, t.name, t.input));
+    }
+  }
+  if (opts?.toolEnds) {
+    for (const t of opts.toolEnds) {
+      events.push(makeToolEnd(t.id, t));
+    }
+  }
+
+  // Assistant message_end events with usage
+  const usageCount = opts?.usageEvents ?? 2;
+  for (let i = 0; i < usageCount; i++) {
+    events.push(eventLine(makeUsageEvent()));
+  }
+
+  // Delta events (90%+ of a real log)
+  events.push(...makeDeltaEvents(300));
+
+  // Corrupt line
+  if (opts?.corruptLine) {
+    events.push("NOT VALID JSON {{{}}");
+  }
+
+  events.push(
+    eventLine({ type: "turn_end", timestamp: "2025-09-01T00:01:00.000Z" }),
+  );
+
+  await writeEvents(events);
+}
+
+describe("exportRunToOtlp", () => {
+  test("produces correct OTLP envelope shape with resource and scope", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+
+    expect(result).toHaveProperty("resourceSpans");
+    expect(result.resourceSpans).toHaveLength(1);
+
+    const rs = result.resourceSpans[0];
+    expect(rs).toHaveProperty("resource");
+    expect(rs).toHaveProperty("scopeSpans");
+    expect(rs.scopeSpans).toHaveLength(1);
+
+    const ss = rs.scopeSpans[0];
+    expect(ss.scope.name).toBe("ultimate-harness");
+    expect(ss.scope.version).toBeTruthy();
+    expect(Array.isArray(ss.spans)).toBe(true);
+  });
+
+  test("creates exactly one root span with correct name and kind", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+
+    const rootSpans = spans.filter(
+      (s: any) => s.name.startsWith("invoke_agent"),
+    );
+    expect(rootSpans).toHaveLength(1);
+
+    const root = rootSpans[0];
+    expect(root.kind).toBe(1); // INTERNAL
+    expect(root.name).toBe(`invoke_agent ${RUNTIME}`);
+  });
+
+  test("maps GenAI semantic convention attributes on root span", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+
+    expect(attrMap.get("gen_ai.operation.name")?.stringValue).toBe("invoke_agent");
+    expect(attrMap.get("gen_ai.agent.name")?.stringValue).toBe(RUNTIME);
+    expect(attrMap.get("gen_ai.agent.id")?.stringValue).toBe(RUN_ID);
+    expect(attrMap.get("gen_ai.request.model")?.stringValue).toBe(MODEL);
+    expect(attrMap.get("gen_ai.provider.name")?.stringValue).toBe(PROVIDER);
+    expect(attrMap.get("gen_ai.usage.input_tokens")?.intValue).toBe(1500);
+    expect(attrMap.get("gen_ai.usage.output_tokens")?.intValue).toBe(200);
+  });
+
+  test("sets gen_ai.conversation.id only when session_id exists in runtime-control.json", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+
+    expect(attrMap.get("gen_ai.conversation.id")?.stringValue).toBe(SESSION_ID);
+  });
+
+  test("omits gen_ai.conversation.id when no session_id in control", async () => {
+    await buildFixture({ controlOverrides: { session_id: undefined } });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+
+    expect(attrMap.has("gen_ai.conversation.id")).toBe(false);
+  });
+
+  test("creates child spans for assistant message_end events with usage", async () => {
+    await buildFixture({ usageEvents: 2 });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+
+    const chatSpans = spans.filter((s: any) => s.name.startsWith("chat "));
+    expect(chatSpans).toHaveLength(2);
+
+    for (const span of chatSpans) {
+      const attrMap = new Map<string, any>(
+        span.attributes.map((a: any) => [a.key, a.value]),
+      );
+      expect(attrMap.get("gen_ai.operation.name")?.stringValue).toBe("chat");
+      expect(attrMap.get("gen_ai.response.model")?.stringValue).toBe(MODEL);
+      expect(attrMap.get("gen_ai.usage.input_tokens")?.intValue).toBe(100);
+      expect(attrMap.get("gen_ai.usage.output_tokens")?.intValue).toBe(50);
+      expect(span.parentId).toBeTruthy();
+    }
+  });
+
+  test("creates child spans for tool calls with correct pairing", async () => {
+    await buildFixture({
+      toolStarts: [
+        { id: "tc-1", name: "shell_command", input: { command: "ls -la" } },
+        { id: "tc-2", name: "read_file", input: { file_path: "/tmp/foo" } },
+      ],
+      toolEnds: [
+        { id: "tc-1" },
+        { id: "tc-2", isError: true },
+      ],
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+
+    const toolSpans = spans.filter((s: any) => s.name.startsWith("execute_tool "));
+    expect(toolSpans).toHaveLength(2);
+
+    const tc1 = toolSpans.find((s: any) => s.name === "execute_tool shell_command")!;
+    const tc1Attr = new Map<string, any>(
+      tc1.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(tc1Attr.get("gen_ai.operation.name")?.stringValue).toBe("execute_tool");
+    expect(tc1Attr.get("gen_ai.tool.name")?.stringValue).toBe("shell_command");
+    expect(tc1Attr.get("gen_ai.tool.call.id")?.stringValue).toBe("tc-1");
+    expect(tc1.parentId).toBeTruthy();
+
+    const tc2 = toolSpans.find((s: any) => s.name === "execute_tool read_file")!;
+    const tc2Attr = new Map<string, any>(
+      tc2.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(tc2Attr.get("error.type")?.stringValue).toBe("tool_error");
+  });
+
+  test("marks unfinished tool spans (start with no end) with error.type=unfinished", async () => {
+    await buildFixture({
+      toolStarts: [{ id: "tc-orphan", name: "write_file" }],
+      toolEnds: [],
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+
+    const toolSpan = spans.find((s: any) => s.name === "execute_tool write_file")!;
+    const attrMap = new Map<string, any>(
+      toolSpan.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("error.type")?.stringValue).toBe("unfinished");
+  });
+
+  test("sets ERROR status on non-passed run", async () => {
+    await buildFixture({
+      resultOverrides: { status: "failed", stop_code: "timeout" },
+      controlOverrides: { status: "failed", stop_code: "timeout" },
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+
+    expect(root.status.code).toBe(2); // ERROR
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("error.type")?.stringValue).toBe("timeout");
+  });
+
+  test("uses run status when stop_code is absent", async () => {
+    await buildFixture({
+      resultOverrides: { status: "failed", stop_code: undefined },
+      controlOverrides: { status: "failed", stop_code: undefined },
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+
+    expect(root.status.code).toBe(2);
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("error.type")?.stringValue).toBe("failed");
+  });
+
+  test("derives deterministic IDs across two exports", async () => {
+    await buildFixture();
+    const result1 = await exportRunToOtlp(baseRunDir());
+    const result2 = await exportRunToOtlp(baseRunDir());
+
+    const spans1 = result1.resourceSpans[0].scopeSpans[0].spans;
+    const spans2 = result2.resourceSpans[0].scopeSpans[0].spans;
+
+    expect(spans1).toHaveLength(spans2.length);
+    for (let i = 0; i < spans1.length; i++) {
+      expect(spans1[i].traceId).toBe(spans2[i].traceId);
+      expect(spans1[i].spanId).toBe(spans2[i].spanId);
+      expect(spans1[i].parentId).toBe(spans2[i].parentId);
+    }
+  });
+
+  test("IDs are lowercase hex with correct lengths", async () => {
+    await buildFixture({ toolStarts: [{ id: "tc-a", name: "bash" }], toolEnds: [{ id: "tc-a" }] });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+
+    for (const span of spans) {
+      expect(span.traceId).toMatch(/^[0-9a-f]{32}$/);
+      expect(span.spanId).toMatch(/^[0-9a-f]{16}$/);
+    }
+  });
+
+  test("sets UH-specific facts on root span under uh. prefix", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+
+    expect(attrMap.get("uh.mission.id")?.stringValue).toBe(MISSION_ID);
+    expect(attrMap.get("uh.run.status")?.stringValue).toBe("passed");
+    expect(attrMap.get("uh.turns")?.intValue).toBe(3);
+  });
+
+  test("never exports SECRET-DO-NOT-EXPORT marker", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const json = JSON.stringify(result);
+    expect(json).not.toContain("SECRET-DO-NOT-EXPORT");
+  });
+
+  test("skips streaming delta events without creating spans", async () => {
+    await buildFixture({ usageEvents: 1 });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    // Should be: 1 root + 1 chat = 2 spans (no delta spans)
+    expect(spans.length).toBe(2);
+  });
+
+  test("handles corrupt lines in NDJSON without throwing", async () => {
+    await buildFixture({ corruptLine: true, usageEvents: 1 });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    expect(spans.length).toBe(2); // root + 1 chat
+  });
+
+  test("adds uh.tool.target to tool spans only when includeToolTargets is true", async () => {
+    await buildFixture({
+      toolStarts: [{ id: "tc-x", name: "shell_command", input: { command: "npm install" } }],
+      toolEnds: [{ id: "tc-x" }],
+    });
+
+    const withoutTarget = await exportRunToOtlp(baseRunDir());
+    const toolSpan1 = withoutTarget.resourceSpans[0].scopeSpans[0].spans.find(
+      (s: any) => s.name.startsWith("execute_tool"),
+    )!;
+    const attrMap1 = new Map<string, any>(
+      toolSpan1.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap1.has("uh.tool.target")).toBe(false);
+
+    const withTarget = await exportRunToOtlp(baseRunDir(), { includeToolTargets: true });
+    const toolSpan2 = withTarget.resourceSpans[0].scopeSpans[0].spans.find(
+      (s: any) => s.name.startsWith("execute_tool"),
+    )!;
+    const attrMap2 = new Map<string, any>(
+      toolSpan2.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap2.get("uh.tool.target")?.stringValue).toBe("npm install");
+  });
+
+  test("truncates uh.tool.target to first 120 chars for commands", async () => {
+    const longCmd = "a".repeat(200);
+    await buildFixture({
+      toolStarts: [{ id: "tc-long", name: "shell_command", input: { command: longCmd } }],
+      toolEnds: [{ id: "tc-long" }],
+    });
+    const result = await exportRunToOtlp(baseRunDir(), { includeToolTargets: true });
+    const toolSpan = result.resourceSpans[0].scopeSpans[0].spans.find(
+      (s: any) => s.name.startsWith("execute_tool"),
+    )!;
+    const attrMap = new Map<string, any>(
+      toolSpan.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("uh.tool.target")?.stringValue).toHaveLength(120);
+  });
+
+  test("uses file_path from tool input as uh.tool.target when present", async () => {
+    await buildFixture({
+      toolStarts: [{ id: "tc-file", name: "read_file", input: { file_path: "/src/main.ts" } }],
+      toolEnds: [{ id: "tc-file" }],
+    });
+    const result = await exportRunToOtlp(baseRunDir(), { includeToolTargets: true });
+    const toolSpan = result.resourceSpans[0].scopeSpans[0].spans.find(
+      (s: any) => s.name === "execute_tool read_file",
+    )!;
+    const attrMap = new Map<string, any>(
+      toolSpan.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("uh.tool.target")?.stringValue).toBe("/src/main.ts");
+  });
+
+  test("parent-child span relationships are correct", async () => {
+    await buildFixture({
+      usageEvents: 1,
+      toolStarts: [{ id: "tc-1", name: "bash" }],
+      toolEnds: [{ id: "tc-1" }],
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+
+    const children = spans.filter((s: any) => s.parentId === root.spanId);
+    expect(children.length).toBe(2); // 1 chat + 1 tool
+    expect(root.parentId).toBeFalsy(); // root has no parent
+  });
+
+  test("sets timestamps as startTimeUnixNano and endTimeUnixNano strings", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    for (const span of spans) {
+      expect(typeof span.startTimeUnixNano).toBe("string");
+      expect(typeof span.endTimeUnixNano).toBe("string");
+      expect(span.startTimeUnixNano).toMatch(/^\d+$/);
+      expect(span.endTimeUnixNano).toMatch(/^\d+$/);
+    }
+  });
+
+  test("exportRunToOtlp throws on nonexistent runDir", async () => {
+    await expect(exportRunToOtlp("/nonexistent/path")).rejects.toThrow();
+  });
+
+  test("supports tool_queued / tool_completed event name variants", async () => {
+    root = await mkdtemp(join(tmpdir(), "otel-test-"));
+    await writeControl();
+    await writeResult();
+    const events = [
+      eventLine({ type: "tool_queued", toolCallId: "tc-q", toolName: "edit_file" }),
+      eventLine({ type: "tool_completed", toolCallId: "tc-q", isError: false, result: { content: [{ text: "done" }] } }),
+      eventLine(makeUsageEvent()),
+      ...makeDeltaEvents(50),
+      eventLine({ type: "turn_end", timestamp: "2025-09-01T00:01:00.000Z" }),
+    ];
+    await writeEvents(events);
+
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const toolSpans = spans.filter((s: any) => s.name.startsWith("execute_tool "));
+    expect(toolSpans).toHaveLength(1);
+    expect(toolSpans[0].name).toBe("execute_tool edit_file");
+  });
+
+  test("supports tool_running as tool-start variant", async () => {
+    root = await mkdtemp(join(tmpdir(), "otel-test-"));
+    await writeControl();
+    await writeResult();
+    const events = [
+      eventLine({ type: "tool_running", toolCallId: "tc-r", toolName: "grep" }),
+      eventLine({ type: "tool_execution_end", toolCallId: "tc-r", isError: false }),
+      eventLine(makeUsageEvent()),
+      ...makeDeltaEvents(20),
+      eventLine({ type: "turn_end", timestamp: "2025-09-01T00:01:00.000Z" }),
+    ];
+    await writeEvents(events);
+
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const toolSpans = spans.filter((s: any) => s.name.startsWith("execute_tool "));
+    expect(toolSpans).toHaveLength(1);
+    expect(toolSpans[0].name).toBe("execute_tool grep");
+  });
+
+  test("root span carries uh.cost_usd and uh.cost_basis from runtime-result.yaml", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+    const attrMap = new Map<string, any>(
+      root.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("uh.cost_usd")?.doubleValue).toBeCloseTo(0.042);
+    expect(attrMap.get("uh.cost_basis")?.stringValue).toBe("provider_reported");
+  });
+
+  test("resource attributes include service information", async () => {
+    await buildFixture();
+    const result = await exportRunToOtlp(baseRunDir());
+    const resource = result.resourceSpans[0].resource;
+    const attrMap = new Map<string, any>(
+      resource.attributes.map((a: any) => [a.key, a.value]),
+    );
+    expect(attrMap.get("service.name")?.stringValue).toBe("ultimate-harness");
+  });
+
+  test("spans are ordered: root first, then children", async () => {
+    await buildFixture({
+      usageEvents: 1,
+      toolStarts: [{ id: "tc-1", name: "bash" }],
+      toolEnds: [{ id: "tc-1" }],
+    });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    // First span should be root
+    expect(spans[0].name).toBe("invoke_agent oh-my-pi");
+    // Remaining should have parentId
+    for (let i = 1; i < spans.length; i++) {
+      expect(spans[i].parentId).toBeTruthy();
+    }
+  });
+
+  test("multiple assistant messages produce separate chat spans with cumulative usage", async () => {
+    await buildFixture({ usageEvents: 3 });
+    const result = await exportRunToOtlp(baseRunDir());
+    const spans = result.resourceSpans[0].scopeSpans[0].spans;
+    const chatSpans = spans.filter((s: any) => s.name.startsWith("chat "));
+    expect(chatSpans).toHaveLength(3);
+    // Each should be a child of root
+    const root = spans.find((s: any) => s.name.startsWith("invoke_agent"))!;
+    for (const cs of chatSpans) {
+      expect(cs.parentId).toBe(root.spanId);
+    }
+  });
+});
diff --git a/tests/otlp-push.test.ts b/tests/otlp-push.test.ts
new file mode 100644
index 0000000..113a8f7
--- /dev/null
+++ b/tests/otlp-push.test.ts
@@ -0,0 +1,354 @@
+import { describe, expect, test, vi } from "vitest";
+import { pushOtlpTraces, type OtlpPushOptions } from "../src/harness/otlp-push.js";
+import type { OtlpTraceExport } from "../src/harness/otel-export.js";
+
+const SECRET = "X-MARKER-SECRET-VALUE-12345";
+const BODY: OtlpTraceExport = { resourceSpans: [] };
+
+function fakeFetch(
+  handler: (
+    url: string,
+    init: RequestInit,
+  ) => Promise<Response>,
+): typeof globalThis.fetch {
+  return ((_input: string | URL | Request, init?: RequestInit) =>
+    handler(String(_input), init! as RequestInit)) as unknown as typeof globalThis.fetch;
+}
+
+function okResponse(): Response {
+  return new Response(null, { status: 200 });
+}
+
+function retryAfterResponse(seconds: number): Response {
+  return new Response(null, { status: 429, headers: { "retry-after": String(seconds) } });
+}
+
+function makeDelay(): { delay: (ms: number) => Promise<void>; calls: number[] } {
+  const calls: number[] = [];
+  const delay = (ms: number) => {
+    calls.push(ms);
+    return Promise.resolve();
+  };
+  return { delay, calls };
+}
+
+const BASE: Omit<OtlpPushOptions, "fetch" | "delay"> = {
+  endpoint: "https://collector.example.com",
+};
+
+describe("pushOtlpTraces", () => {
+  test("appends /v1/traces when endpoint path is empty", async () => {
+    const urls: string[] = [];
+    const fetch = fakeFetch(async (url) => {
+      urls.push(url);
+      return okResponse();
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, endpoint: "https://collector.example.com", fetch, delay });
+    expect(urls[0]).toBe("https://collector.example.com/v1/traces");
+  });
+
+  test("appends /v1/traces when endpoint path is a single slash", async () => {
+    const urls: string[] = [];
+    const fetch = fakeFetch(async (url) => {
+      urls.push(url);
+      return okResponse();
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, endpoint: "https://collector.example.com/", fetch, delay });
+    expect(urls[0]).toBe("https://collector.example.com/v1/traces");
+  });
+
+  test("uses endpoint path as-is when it already has a path", async () => {
+    const urls: string[] = [];
+    const fetch = fakeFetch(async (url) => {
+      urls.push(url);
+      return okResponse();
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, {
+      ...BASE,
+      endpoint: "https://collector.example.com/custom/traces",
+      fetch,
+      delay,
+    });
+    expect(urls[0]).toBe("https://collector.example.com/custom/traces");
+  });
+
+  test("rejects non-http(s) endpoints", async () => {
+    const fetch = fakeFetch(async () => okResponse());
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, {
+      ...BASE,
+      endpoint: "ftp://collector.example.com",
+      fetch,
+      delay,
+    });
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") expect(result.reason).toBe("invalid_endpoint");
+  });
+
+  test("rejects relative endpoints", async () => {
+    const fetch = fakeFetch(async () => okResponse());
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, {
+      ...BASE,
+      endpoint: "/v1/traces",
+      fetch,
+      delay,
+    });
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") expect(result.reason).toBe("invalid_endpoint");
+  });
+
+  test("returns ok with HTTP status on success", async () => {
+    const fetch = fakeFetch(async () => okResponse());
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(result.kind).toBe("ok");
+    if (result.kind === "ok") expect(result.status).toBe(200);
+  });
+
+  test("sends POST with content-type application/json", async () => {
+    let capturedInit: RequestInit | undefined;
+    const fetch = fakeFetch(async (_url, init) => {
+      capturedInit = init;
+      return okResponse();
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(capturedInit?.method).toBe("POST");
+    const headers = capturedInit?.headers as Record<string, string>;
+    expect(headers["content-type"]).toBe("application/json");
+  });
+
+  test("includes custom headers", async () => {
+    let capturedInit: RequestInit | undefined;
+    const fetch = fakeFetch(async (_url, init) => {
+      capturedInit = init;
+      return okResponse();
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, {
+      ...BASE,
+      headers: { "x-api-key": "test-key" },
+      fetch,
+      delay,
+    });
+    const headers = capturedInit?.headers as Record<string, string>;
+    expect(headers["x-api-key"]).toBe("test-key");
+  });
+
+  test("retries on 429 then succeeds", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      if (calls === 1) return retryAfterResponse(1);
+      return okResponse();
+    });
+    const { delay, calls: delays } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(result.kind).toBe("ok");
+    if (result.kind === "ok") expect(result.status).toBe(200);
+    expect(calls).toBe(2);
+    expect(delays).toHaveLength(1);
+  });
+
+  test("retries on 502, 503, 504 then succeeds", async () => {
+    for (const status of [502, 503, 504]) {
+      let calls = 0;
+      const fetch = fakeFetch(async () => {
+        calls++;
+        if (calls === 1) return new Response(null, { status });
+        return okResponse();
+      });
+      const { delay } = makeDelay();
+
+      const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+      expect(result.kind).toBe("ok");
+    }
+  });
+
+  test("returns failed with reason http and status after retries exhausted", async () => {
+    const fetch = fakeFetch(async () => retryAfterResponse(1));
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") {
+      expect(result.reason).toBe("http");
+      expect(result.status).toBe(429);
+    }
+  });
+
+  test("does not retry on non-retryable 400", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      return new Response(null, { status: 400 });
+    });
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(calls).toBe(1);
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") {
+      expect(result.reason).toBe("http");
+      expect(result.status).toBe(400);
+    }
+  });
+
+  test("returns failed with reason timeout when signal aborts", async () => {
+    const fetch = fakeFetch(async (_url, init) => {
+      const signal = init.signal as AbortSignal;
+      return new Promise((_resolve, reject) => {
+        signal.addEventListener("abort", () => reject(signal.reason), { once: true });
+      });
+    });
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, {
+      ...BASE,
+      fetch,
+      delay,
+      timeoutMs: 1,
+    });
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") expect(result.reason).toBe("timeout");
+  });
+
+  test("returns failed with reason transport on network error", async () => {
+    const fetch = fakeFetch(async () => {
+      throw new TypeError("fetch failed");
+    });
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(result.kind).toBe("failed");
+    if (result.kind === "failed") expect(result.reason).toBe("transport");
+  });
+
+  test("uses default 500ms retry delay when no retry-after header", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      if (calls === 1) return new Response(null, { status: 503 });
+      return okResponse();
+    });
+    const { delay, calls: delays } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(delays[0]).toBe(500);
+  });
+
+  test("uses 2000ms for second retry delay", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      if (calls <= 2) return new Response(null, { status: 503 });
+      return okResponse();
+    });
+    const { delay, calls: delays } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(delays[0]).toBe(500);
+    expect(delays[1]).toBe(2000);
+  });
+
+  test("caps retry-after at 5 seconds", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      if (calls === 1) return retryAfterResponse(30);
+      return okResponse();
+    });
+    const { delay, calls: delays } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(delays[0]).toBe(5000);
+  });
+
+  test("marker in header value never appears in result", async () => {
+    const fetch = fakeFetch(async () => new Response(null, { status: 500 }));
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(BODY, {
+      ...BASE,
+      headers: { "x-custom": SECRET },
+      fetch,
+      delay,
+    });
+    const resultStr = JSON.stringify(result);
+    expect(resultStr).not.toContain(SECRET);
+  });
+
+  test("marker in request body never appears in result", async () => {
+    const bodyWithSecret: OtlpTraceExport = {
+      resourceSpans: [
+        {
+          resource: { attributes: [{ key: "secret", value: { stringValue: SECRET } }] },
+          scopeSpans: [],
+        },
+      ],
+    };
+    const fetch = fakeFetch(async () => new Response(null, { status: 500 }));
+    const { delay } = makeDelay();
+
+    const result = await pushOtlpTraces(bodyWithSecret, { ...BASE, fetch, delay });
+    const resultStr = JSON.stringify(result);
+    expect(resultStr).not.toContain(SECRET);
+  });
+
+  test("never throws for network conditions", async () => {
+    const fetch = fakeFetch(async () => {
+      throw new Error("boom");
+    });
+    const { delay } = makeDelay();
+
+    await expect(
+      pushOtlpTraces(BODY, { ...BASE, fetch, delay }),
+    ).resolves.toBeDefined();
+  });
+
+  test("never throws on retryable errors", async () => {
+    const fetch = fakeFetch(async () => new Response(null, { status: 502 }));
+    const { delay } = makeDelay();
+
+    await expect(
+      pushOtlpTraces(BODY, { ...BASE, fetch, delay }),
+    ).resolves.toBeDefined();
+  });
+
+  test("does not retry on 400", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      return new Response(null, { status: 400 });
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(calls).toBe(1);
+  });
+
+  test("does not retry on 500", async () => {
+    let calls = 0;
+    const fetch = fakeFetch(async () => {
+      calls++;
+      return new Response(null, { status: 500 });
+    });
+    const { delay } = makeDelay();
+
+    await pushOtlpTraces(BODY, { ...BASE, fetch, delay });
+    expect(calls).toBe(1);
+  });
+});
diff --git a/tests/pi.test.ts b/tests/pi.test.ts
index 88fab59..130a0df 100644
--- a/tests/pi.test.ts
+++ b/tests/pi.test.ts
@@ -1,5 +1,7 @@
-import { test, expect, describe, beforeAll } from "vitest";
+import { test, expect, describe, beforeAll, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, readFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { parse } from "yaml";
 import { initializeHarness } from "../src/harness/init.js";
@@ -15,7 +17,7 @@ import {
   type PiRunner,
 } from "../src/adapters/pi.js";
 
-const TEST_ROOT = "/tmp/uh-test-pi-adapter";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-pi-adapter-"));
 
 async function cleanup() {
   try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
@@ -78,6 +80,7 @@ test.beforeEach(async () => {
   await writePiManifest();
 });
 test.afterEach(cleanup);
+test.afterAll(cleanup);
 
 describe("uh adapter check pi", () => {
   test("returns a well-formed check result regardless of pi presence", async () => {
diff --git a/tests/process-state.ts b/tests/process-state.ts
new file mode 100644
index 0000000..7997825
--- /dev/null
+++ b/tests/process-state.ts
@@ -0,0 +1,39 @@
+import { readFile } from "node:fs/promises";
+
+/**
+ * Whether a process the harness killed is actually gone.
+ *
+ * A killed process whose parent has already exited is re-parented and stays
+ * visible as a zombie until init reaps it. In a container whose PID 1 does not
+ * reap orphans — which is how CI runners behave — that can last indefinitely,
+ * and `process.kill(pid, 0)` succeeds for a zombie. So pid existence alone
+ * cannot prove termination; a zombie has stopped executing, which is the
+ * property these tests actually assert.
+ */
+export async function isTerminated(pid: number): Promise<boolean> {
+  try {
+    process.kill(pid, 0);
+  } catch {
+    return true;
+  }
+  if (process.platform !== "linux") return false;
+  try {
+    const stat = await readFile(`/proc/${pid}/stat`, "utf-8");
+    // The comm field can contain spaces and parentheses, so the state is the
+    // field after the last ")".
+    return stat.slice(stat.lastIndexOf(")") + 2).startsWith("Z");
+  } catch {
+    return true; // Exited between the existence probe and the state read.
+  }
+}
+
+/** Poll for termination instead of asserting on one instant of reaping. */
+export async function waitForTerminated(pid: number, timeoutMs = 5000): Promise<void> {
+  const start = Date.now();
+  while (!(await isTerminated(pid))) {
+    if (Date.now() - start > timeoutMs) {
+      throw new Error(`process ${pid} was still running ${timeoutMs}ms after termination was requested`);
+    }
+    await new Promise((resolve) => setTimeout(resolve, 25));
+  }
+}
diff --git a/tests/promote.test.ts b/tests/promote.test.ts
index 01261f8..536e8fa 100644
--- a/tests/promote.test.ts
+++ b/tests/promote.test.ts
@@ -11,10 +11,9 @@ import { validateFile } from "../src/harness/validate.js";
 
 let TEST_ROOT: string;
 const execFileP = promisify(execFile);
-const CLI = join(process.cwd(), "node_modules", ".bin", "tsx");
 
 async function runUh(args: string[]) {
-  return execFileP(CLI, ["src/cli.ts", ...args], { cwd: process.cwd() });
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], { cwd: process.cwd() });
 }
 
 async function runUhFailure(args: string[]) {
diff --git a/tests/prompt-transmission.test.ts b/tests/prompt-transmission.test.ts
new file mode 100644
index 0000000..dd916a6
--- /dev/null
+++ b/tests/prompt-transmission.test.ts
@@ -0,0 +1,134 @@
+import { beforeAll, beforeEach, afterEach, afterAll, describe, expect, test } from "vitest";
+import { mkdtempSync } from "node:fs";
+import { mkdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { initializeHarness } from "../src/harness/init.js";
+import { planOhMyPiRun } from "../src/adapters/oh-my-pi.js";
+
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-prompt-transmission-"));
+
+async function cleanup() {
+  await rm(TEST_ROOT, { recursive: true, force: true });
+}
+
+beforeAll(cleanup);
+beforeEach(async () => {
+  await cleanup();
+  await mkdir(TEST_ROOT, { recursive: true });
+  await initializeHarness(TEST_ROOT);
+  await writeFile(
+    join(TEST_ROOT, ".harness", "adapters", "oh-my-pi.yaml"),
+    `schema_version: uh.adapter.v0
+id: oh-my-pi
+name: oh-my-pi
+runtime: oh-my-pi
+capabilities:
+  - cli-execution
+status: experimental
+config:
+  cli_command: omp
+  default_toolsets: []
+  default_provider: ""
+  default_model: ""
+  worktree_mode: false
+  pass_session_id: false
+  runtime_config:
+    mode: json
+    thinking: ""
+    allow_extensions: false
+    allow_skills: false
+`,
+    "utf-8",
+  );
+});
+afterEach(cleanup);
+
+describe("planOhMyPiRun prompt transmission", () => {
+  test("passes structured mission fields through the real planner argv seam", async () => {
+    const missionDir = join(TEST_ROOT, ".harness", "missions", "structured-transmission");
+    await mkdir(missionDir, { recursive: true });
+    const missionPath = join(missionDir, "mission.yaml");
+    await writeFile(
+      missionPath,
+      `schema_version: uh.mission.v0
+id: structured-transmission
+name: Structured Transmission
+objective: Preserve the complete mission packet.
+workflow_profile: research-docs
+constraints:
+  - Do not drop this constraint.
+  - Keep this second constraint after the first.
+expected_outputs:
+  files:
+    - src/output.ts
+verification:
+  checks:
+    - bun run test -- tests/output.test.ts
+acceptance_criteria:
+  - id: ac-output
+    description: The output file is complete.
+    check_command: bun run test -- tests/output.test.ts
+    severity: block
+  - id: ac-review
+    description: A reviewer confirms the result.
+    severity: warn
+runtime_config_overrides:
+  honcho_memory: false
+`,
+      "utf-8",
+    );
+
+    const plan = await planOhMyPiRun(TEST_ROOT, missionPath);
+    const transmittedPrompt = plan.args[plan.args.length - 1];
+
+    expect(transmittedPrompt).toBe(plan.prompt);
+    expect(transmittedPrompt).toContain("Preserve the complete mission packet.");
+    expect(transmittedPrompt).toContain(
+      "## Constraints\n" +
+      "- Do not drop this constraint.\n" +
+      "- Keep this second constraint after the first.\n",
+    );
+    expect(transmittedPrompt).toContain(
+      "## Expected Artifacts\n- src/output.ts\n\n" +
+      "## Verification Checks\n- bun run test -- tests/output.test.ts\n\n" +
+      "## Constraints\n" +
+      "- Do not drop this constraint.\n" +
+      "- Keep this second constraint after the first.\n\n" +
+      "## Acceptance Criteria\n" +
+      "- ac-output [block] The output file is complete.\n" +
+      "  - check_command: bun run test -- tests/output.test.ts\n" +
+      "- ac-review [warn] A reviewer confirms the result.\n\n",
+    );
+  });
+
+  test("renders empty mission lists explicitly as none, add nothing", async () => {
+    const missionDir = join(TEST_ROOT, ".harness", "missions", "sparse-transmission");
+    await mkdir(missionDir, { recursive: true });
+    const missionPath = join(missionDir, "mission.yaml");
+    await writeFile(
+      missionPath,
+      `schema_version: uh.mission.v0
+id: sparse-transmission
+name: Sparse Transmission
+objective: Every mission list must render, even when empty.
+workflow_profile: research-docs
+`,
+      "utf-8",
+    );
+
+    const plan = await planOhMyPiRun(TEST_ROOT, missionPath);
+    const transmittedPrompt = plan.args[plan.args.length - 1];
+
+    expect(transmittedPrompt).toBe(plan.prompt);
+    expect(transmittedPrompt).toContain(
+      "## Read First\n- none, add nothing\n\n" +
+      "## Expected Artifacts\n- none, add nothing\n\n" +
+      "## Verification Checks\n- none, add nothing\n\n" +
+      "## Constraints\n- none, add nothing\n\n" +
+      "## Acceptance Criteria\n- none, add nothing\n\n" +
+      "Execute this mission and produce the expected artifacts.\n",
+    );
+  });
+});
+afterAll(cleanup);
diff --git a/tests/propose.test.ts b/tests/propose.test.ts
index 8e8c1bb..3200cd7 100644
--- a/tests/propose.test.ts
+++ b/tests/propose.test.ts
@@ -256,7 +256,7 @@ describe("proposeMission", () => {
   test("rejects a symlinked missions directory before writing", async () => {
     const outsideRoot = await mkdtemp(join(tmpdir(), "uh-test-propose-missions-link-"));
     await rm(join(TEST_ROOT, ".harness", "missions"), { recursive: true, force: true });
-    await symlink(outsideRoot, join(TEST_ROOT, ".harness", "missions"));
+    await symlink(outsideRoot, join(TEST_ROOT, ".harness", "missions"), process.platform === "win32" ? "junction" : "dir");
     try {
       await expect(proposeMission(TEST_ROOT, {
         id: "symlinked",
@@ -366,8 +366,9 @@ describe("uh propose CLI", () => {
   test("creates a fully-populated mission and prints the path", async () => {
     const missionPath = join(TEST_ROOT, ".harness", "missions", "cli-propose", "mission.yaml");
     const { stdout, stderr } = await execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
+      process.execPath,
       [
+        "--import", "tsx",
         "src/cli.ts",
         "propose",
         "cli-propose",
@@ -429,8 +430,9 @@ describe("uh propose CLI", () => {
   test("honors --output to write the mission to an alternative path", async () => {
     const out = join(TEST_ROOT, ".harness", "proposals", "alt.yaml");
     const { stdout, stderr } = await execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
+      process.execPath,
       [
+        "--import", "tsx",
         "src/cli.ts",
         "propose",
         "alt-mission",
@@ -453,8 +455,9 @@ describe("uh propose CLI", () => {
 
   test("exits non-zero with a clear error when workflow is unknown", async () => {
     await expect(execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
+      process.execPath,
       [
+        "--import", "tsx",
         "src/cli.ts",
         "propose",
         "bad-wf",
diff --git a/tests/registry.test.ts b/tests/registry.test.ts
index 99110f5..f983009 100644
--- a/tests/registry.test.ts
+++ b/tests/registry.test.ts
@@ -1,5 +1,7 @@
 import { afterAll, beforeEach, describe, expect, test } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { initializeHarness } from "../src/harness/init.js";
 import {
@@ -8,7 +10,7 @@ import {
   type AdapterRuntimeChecker,
 } from "../src/harness/registry.js";
 
-const TEST_ROOT = "/tmp/uh-test-registry";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-registry-"));
 
 async function cleanup(): Promise<void> {
   try {
diff --git a/tests/report.test.ts b/tests/report.test.ts
new file mode 100644
index 0000000..4781209
--- /dev/null
+++ b/tests/report.test.ts
@@ -0,0 +1,396 @@
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { spawnSync } from "node:child_process";
+import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { fileURLToPath } from "node:url";
+import path from "node:path";
+import {
+  DEFAULT_REPORT_LAST,
+  REPORT_SCHEMA_VERSION,
+  ReportError,
+  formatRunReport,
+  redactSecrets,
+  reportRun,
+  sanitizeReportText,
+  type RunReport,
+} from "../src/harness/report.js";
+import { registerLiveRun, type NativeProcess } from "../src/harness/live-runs.js";
+
+const CLI = fileURLToPath(new URL("../src/cli.ts", import.meta.url));
+const FIXTURE_DIR = fileURLToPath(new URL("./fixtures/runtime-events", import.meta.url));
+
+const NOW = Date.parse("2026-01-01T06:00:00.000Z");
+const iso = (milliseconds: number): string => new Date(milliseconds).toISOString();
+
+/** Planted in assistant text and tool arguments: none may reach any output. */
+const SECRET_ANTHROPIC = "sk-ant-api03-abcdefghijklmnopqrstuvwxyz";
+const SECRET_AWS = "AKIAIOSFODNN7EXAMPLE";
+const LEAKED_PATH = "/home/mateo/private/notes.md";
+
+let ROOT: string;
+
+beforeEach(async () => {
+  ROOT = await mkdtemp(path.join(tmpdir(), "uh-report-"));
+  await mkdir(path.join(ROOT, ".harness"), { recursive: true });
+  await writeFile(
+    path.join(ROOT, ".harness", "project.yaml"),
+    "schema_version: uh.project.v0\nname: report fixture\n",
+    "utf-8",
+  );
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+/* ------------------------------------------------------------------ helpers */
+
+function processes(list: Array<Partial<NativeProcess> & { pid: number; ppid: number }>): NativeProcess[] {
+  return list.map((entry) => ({
+    pid: entry.pid,
+    ppid: entry.ppid,
+    name: entry.name ?? "node.exe",
+    command: entry.command ?? "node",
+  }));
+}
+
+function controlPayload(missionId: string, runId: string, overrides: Record<string, unknown> = {}): Record<string, unknown> {
+  return {
+    schema_version: "uh.runtime-control.v0",
+    mission_id: missionId,
+    run_id: runId,
+    runtime: "command-code",
+    controller_pid: 4242,
+    started_at: iso(NOW - 60_000),
+    heartbeat_at: iso(NOW - 2_000),
+    status: "running",
+    turns: 5,
+    denials: 0,
+    inflight_tools: 0,
+    ...overrides,
+  };
+}
+
+interface SeedOptions {
+  runId?: string;
+  missionId?: string;
+  model?: string;
+  role?: string;
+  control?: Record<string, unknown>;
+  extraLines?: string[];
+  /** Replace the fixture contents entirely (used for synthetic logs). */
+  events?: string;
+}
+
+async function seedRun(fixture: string, options: SeedOptions = {}): Promise<{ runId: string; runDir: string }> {
+  const runId = options.runId ?? "20260101T000000Z-aaaaaa";
+  const missionId = options.missionId ?? "wave";
+  const runDir = path.join(ROOT, ".harness", "missions", missionId, "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  const body = options.events ?? (await readFile(path.join(FIXTURE_DIR, fixture), "utf-8"));
+  const lines = [...body.split(/\r?\n/).filter(Boolean), ...(options.extraLines ?? [])];
+  await writeFile(path.join(runDir, "events.ndjson"), lines.join("\n") + "\n", "utf-8");
+  const runtime = (options.control?.runtime as string | undefined) ?? "command-code";
+  await writeFile(
+    path.join(runDir, "runtime-control.json"),
+    JSON.stringify(controlPayload(missionId, runId, { runtime, ...(options.control ?? {}) })),
+    "utf-8",
+  );
+  await registerLiveRun({
+    projectRoot: ROOT,
+    artifactRoot: ROOT,
+    runId,
+    missionId,
+    runtime,
+    startedAt: (options.control?.started_at as string | undefined) ?? iso(NOW - 60_000),
+    ...(options.model !== undefined ? { model: options.model } : {}),
+    ...(options.role !== undefined ? { team: { mission_id: missionId, role: options.role } } : {}),
+  });
+  return { runId, runDir };
+}
+
+const liveProcesses = () => processes([{ pid: 4242, ppid: 1 }]);
+
+async function makeReport(fixture: string, options: SeedOptions = {}, reportOptions: Record<string, unknown> = {}): Promise<RunReport> {
+  const { runId } = await seedRun(fixture, options);
+  return reportRun(ROOT, runId, { now: NOW, processes: liveProcesses(), ...reportOptions });
+}
+
+/* ------------------------------------------------------------------ healthy */
+
+describe("uh report — healthy Command Code window", () => {
+  test("summarizes mission, role, route, liveness, turns and activity", async () => {
+    const report = await makeReport("command-code-healthy.ndjson", {
+      model: "deepseek/deepseek-v4.1-flash",
+      role: "backend",
+      control: { runtime: "command-code", turns: 11 },
+    });
+
+    expect(report.schema_version).toBe(REPORT_SCHEMA_VERSION);
+    expect(report.mission_id).toBe("wave");
+    expect(report.role).toBe("backend");
+    expect(report.runtime).toBe("command-code");
+    expect(report.model).toBe("deepseek/deepseek-v4.1-flash");
+    expect(report.liveness).toBe("live");
+    expect(report.status).toBe("running");
+    expect(report.turns).toBe(11);
+    expect(report.elapsed_ms).toBe(60_000);
+
+    // The default window is the last 10 completed calls, projected by projectActivity.
+    expect(report.activity.window).toBe(DEFAULT_REPORT_LAST);
+    expect(report.activity.source).toBe("command-code");
+    expect(report.activity.calls).toHaveLength(10);
+    expect(report.activity.calls[0]).toMatchObject({ tool: "read_file", kind: "read", target: "src/harness/team-run.ts", ok: true, error_class: "none" });
+    expect(report.activity.calls.at(-1)).toMatchObject({ tool: "shell_command", kind: "shell", target: "bunx" });
+
+    // Ages are derived from the completion timestamps and run newest-last.
+    const ages = report.activity.calls.map((call) => call.age_ms);
+    expect(ages.every((age) => typeof age === "number" && age >= 0)).toBe(true);
+    for (let index = 1; index < ages.length; index += 1) {
+      expect(ages[index]!).toBeLessThanOrEqual(ages[index - 1]!);
+    }
+  });
+
+  test("lists files written so far from write events, and the loop signals over the window", async () => {
+    const report = await makeReport("command-code-healthy.ndjson", { control: { turns: 11 } });
+
+    expect(report.files_written).toEqual(["tests/team-commit-hygiene.test.ts", "src/harness/team-run.ts"]);
+    expect(report.loop_signals).toEqual({ identical_repeats: 2, alternating_pairs: 0, distinct_targets: 5 });
+  });
+
+  test("reports unknown tokens and cost when the stream carries neither", async () => {
+    const report = await makeReport("command-code-healthy.ndjson");
+    expect(report.tokens).toBeNull();
+    expect(report.tokens_unknown_reason).toBeTruthy();
+    expect(report.cost_usd).toBeNull();
+    expect(report.cost_unknown_reason).toBeTruthy();
+    expect(report.last_assistant_text).toBeUndefined();
+  });
+
+  test("reports tokens when the stream carries usage and keeps cost unknown without a price", async () => {
+    const report = await makeReport("command-code-usage.ndjson", {
+      model: "Qwen/Qwen3.8-Flash",
+      control: { runtime: "command-code", turns: 3 },
+    });
+
+    // model_request_end carries the usage; turn_end repeats it and must not double count.
+    expect(report.tokens).toEqual({ input: 39076, output: 580, cache_read: 18432, cache_write: 0 });
+    expect(report.cost_usd).toBeNull();
+    expect(report.cost_unknown_reason).toContain("Qwen/Qwen3.8-Flash");
+  });
+});
+
+/* ------------------------------------------------------------------ denials */
+
+describe("uh report — denied retries window", () => {
+  test("surfaces denials with their guard class and relative target", async () => {
+    const report = await makeReport("command-code-denied-retries.ndjson", { control: { turns: 25, denials: 6 } });
+
+    expect(report.denials.count).toBe(6);
+    expect(report.denials.events).toHaveLength(6);
+    expect(report.denials.events.every((event) => event.guard_class === "denied")).toBe(true);
+    // Every target is relative (or a bounded placeholder); no absolute path leaks.
+    expect(report.denials.events.map((event) => event.target)).toEqual([
+      "<outside>", "<outside>", "cd", "<outside>", "<outside>", "echo",
+    ]);
+    for (const event of report.denials.events) {
+      expect(event.target.startsWith("/")).toBe(false);
+      expect(event.target).not.toMatch(/^[A-Za-z]:\\/);
+    }
+
+    // The projected window also keeps the denial class visible on the calls.
+    const denied = report.activity.calls.filter((call) => call.error_class === "denied");
+    expect(denied.length).toBeGreaterThanOrEqual(1);
+    expect(denied.every((call) => call.ok === false)).toBe(true);
+  });
+
+  test("recovers a specific tool-guard class when the stream discloses the block reason", async () => {
+    const gitReason = "CONTRACT: no git mutations; the harness commits for you. Use read-only git (status, diff, log) or skip it.";
+    const report = await makeReport("command-code-denied-retries.ndjson", {
+      control: { turns: 25, denials: 7 },
+      extraLines: [
+        JSON.stringify({ type: "tool_queued", toolCallId: "call-git", toolName: "shell_command", input: { command: "git commit -m x" }, timestamp: iso(NOW - 5_000) }),
+        JSON.stringify({ type: "tool_hooks", toolCallId: "call-git", toolName: "shell_command", phase: "pre", outcome: { kind: "block", text: gitReason }, timestamp: iso(NOW - 4_000) }),
+        JSON.stringify({ type: "tool_hook_blocked", toolCallId: "call-git", toolName: "shell_command", hookOutput: gitReason, timestamp: iso(NOW - 3_000) }),
+      ],
+    });
+
+    const gitDenial = report.denials.events.find((event) => event.tool === "shell_command" && event.guard_class === "git_mutation");
+    expect(gitDenial).toBeDefined();
+    expect(gitDenial?.target).toBe("git");
+  });
+});
+
+/* ------------------------------------------------------------------ oh-my-pi */
+
+describe("uh report — oh-my-pi window", () => {
+  test("projects an oh-my-pi run with relative targets", async () => {
+    const report = await makeReport("oh-my-pi-healthy.ndjson", { model: "gpt-5.6-luna", control: { runtime: "oh-my-pi", turns: 20 } }, { last: 30 });
+
+    expect(report.runtime).toBe("oh-my-pi");
+    expect(report.activity.source).toBe("oh-my-pi");
+    expect(report.activity.calls.length).toBeGreaterThan(0);
+    for (const call of report.activity.calls) {
+      expect(call.target.startsWith("/")).toBe(false);
+      expect(call.target).not.toMatch(/^[A-Za-z]:\\/);
+    }
+    expect(report.activity.calls.some((call) => call.tool === "read" && call.target === "src/harness/acceptance.ts")).toBe(true);
+    expect(report.activity.calls.some((call) => call.tool === "bash" && call.target === "bunx")).toBe(true);
+  });
+});
+
+/* ---------------------------------------------------------- tail-only read */
+
+describe("uh report — tail-only reading", () => {
+  const fillerLine = JSON.stringify({ type: "message_delta", text: "x".repeat(80), timestamp: iso(NOW - 10_000) });
+  function largeLog(): string {
+    const head = [
+      JSON.stringify({ type: "tool_queued", toolCallId: "head", toolName: "write_file", input: { file_path: "head/early.txt", content: "x" }, timestamp: iso(NOW - 900_000) }),
+      JSON.stringify({ type: "tool_completed", toolCallId: "head", toolName: "write_file", deferred: false, result: [{ type: "text", text: "x" }], timestamp: iso(NOW - 899_000) }),
+    ];
+    const filler = Array.from({ length: 5_000 }, () => fillerLine);
+    const tail = [
+      JSON.stringify({ type: "tool_queued", toolCallId: "tail", toolName: "write_file", input: { file_path: "tail/late.txt", content: "x" }, timestamp: iso(NOW - 5_000) }),
+      JSON.stringify({ type: "tool_completed", toolCallId: "tail", toolName: "write_file", deferred: false, result: [{ type: "text", text: "x" }], timestamp: iso(NOW - 4_000) }),
+    ];
+    return [...head, ...filler, ...tail].join("\n") + "\n";
+  }
+
+  test("reads only the last 256 KB unless --full, which recovers the head", async () => {
+    const { runId } = await seedRun("", { events: largeLog(), control: { turns: 1 } });
+
+    const tailOnly = await reportRun(ROOT, runId, { now: NOW, processes: liveProcesses() });
+    expect(tailOnly.files_written).toEqual(["tail/late.txt"]);
+
+    const full = await reportRun(ROOT, runId, { now: NOW, processes: liveProcesses(), full: true });
+    expect(full.files_written).toEqual(["head/early.txt", "tail/late.txt"]);
+  });
+});
+
+/* ------------------------------------------------------------- secret scrub */
+
+describe("uh report — secret scrub", () => {
+  test("strips secrets and absolute paths from the last assistant text and every field", async () => {
+    const assistantText = `Done. Deployed with token ${SECRET_ANTHROPIC} and key ${SECRET_AWS}; see ${LEAKED_PATH} for details.`;
+    const report = await makeReport("command-code-healthy.ndjson", {
+      extraLines: [
+        JSON.stringify({ type: "result", is_error: false, result: assistantText, timestamp: iso(NOW - 3_000) }),
+        JSON.stringify({ type: "tool_queued", toolCallId: "leak", toolName: "write_file", input: { file_path: LEAKED_PATH, content: `secret ${SECRET_ANTHROPIC}` }, timestamp: iso(NOW - 2_000) }),
+        JSON.stringify({ type: "tool_completed", toolCallId: "leak", toolName: "write_file", deferred: false, result: [{ type: "text", text: "x" }], timestamp: iso(NOW - 1_000) }),
+      ],
+    });
+
+    expect(report.last_assistant_text).toBeDefined();
+    expect(report.last_assistant_text).toContain("[redacted]");
+    expect(report.last_assistant_text).not.toContain(SECRET_ANTHROPIC);
+    expect(report.last_assistant_text).not.toContain(SECRET_AWS);
+    expect(report.last_assistant_text).not.toContain(LEAKED_PATH);
+
+    const serialized = JSON.stringify(report);
+    expect(serialized).not.toContain(SECRET_ANTHROPIC);
+    expect(serialized).not.toContain(SECRET_AWS);
+    expect(serialized).not.toContain("/home/mateo");
+    expect(report.files_written).not.toContain(LEAKED_PATH);
+  });
+
+  test("bounds the last assistant text to 600 characters", async () => {
+    const longText = "A".repeat(2_000);
+    const report = await makeReport("command-code-healthy.ndjson", {
+      extraLines: [JSON.stringify({ type: "result", is_error: false, result: longText, timestamp: iso(NOW - 1_000) })],
+    });
+    expect(report.last_assistant_text).toBe("A".repeat(600));
+  });
+
+  test("redactSecrets removes recognized credentials and sanitizeReportText removes absolute paths", () => {
+    expect(redactSecrets(`key=${SECRET_ANTHROPIC}`)).not.toContain(SECRET_ANTHROPIC);
+    expect(redactSecrets(`credential ${SECRET_AWS}`)).toContain("[redacted]");
+    expect(redactSecrets("Bearer abcdefghijklmnop")).toContain("[redacted]");
+    const sanitized = sanitizeReportText(`read ${LEAKED_PATH} and C:\\Users\\mateo\\secret.txt`);
+    expect(sanitized).not.toContain(LEAKED_PATH);
+    expect(sanitized).not.toContain("C:\\Users\\mateo");
+  });
+});
+
+/* --------------------------------------------------------------- JSON shape */
+
+describe("uh report — JSON shape", () => {
+  test("emits a stable, documented document", async () => {
+    const report = await makeReport("command-code-healthy.ndjson", {
+      model: "m",
+      role: "qa",
+      control: { turns: 4, denials: 2 },
+      extraLines: [JSON.stringify({ type: "result", is_error: false, result: "All checks passed.", timestamp: iso(NOW - 1_000) })],
+    });
+
+    expect(Object.keys(report).sort()).toEqual([
+      "activity",
+      "cost_unknown_reason",
+      "cost_usd",
+      "denials",
+      "elapsed_ms",
+      "files_written",
+      "generated_at",
+      "last_assistant_text",
+      "liveness",
+      "loop_signals",
+      "mission_id",
+      "model",
+      "role",
+      "run_id",
+      "runtime",
+      "schema_version",
+      "started_at",
+      "status",
+      "tokens",
+      "tokens_unknown_reason",
+      "turns",
+    ]);
+    expect(report.denials).toEqual({ count: 2, events: [] });
+    expect(report.activity.calls[0]).toHaveProperty("age_ms");
+    expect(typeof report.generated_at).toBe("string");
+    expect(JSON.stringify(report)).not.toContain(ROOT);
+  });
+});
+
+/* -------------------------------------------------------- target resolution */
+
+describe("uh report — target resolution", () => {
+  test("resolves a run by a unique prefix and rejects unknown or ambiguous ids", async () => {
+    const { runId } = await seedRun("command-code-healthy.ndjson", { runId: "20260101T000000Z-abc123" });
+
+    const resolved = await reportRun(ROOT, "20260101T000000Z-abc", { now: NOW, processes: liveProcesses() });
+    expect(resolved.run_id).toBe(runId);
+
+    await expect(reportRun(ROOT, "does-not-exist", { now: NOW, processes: [] })).rejects.toBeInstanceOf(ReportError);
+    await expect(reportRun(ROOT, "nope", { now: NOW, processes: [] })).rejects.toMatchObject({ code: "unknown_target" });
+  });
+});
+
+/* ------------------------------------------------------------- CLI contract */
+
+function runCli(args: string[]): { status: number | null; stdout: string; stderr: string } {
+  return spawnSync("bun", ["x", "tsx", CLI, ...args], {
+    encoding: "utf-8",
+    timeout: 60_000,
+    env: { ...process.env, UH_TELEMETRY: "", UH_POSTHOG_API_KEY: "" },
+  }) as { status: number | null; stdout: string; stderr: string };
+}
+
+describe("uh report CLI", () => {
+  test("prints a human report and a JSON report, and exits 1 for an unknown run", async () => {
+    const { runId } = await seedRun("command-code-healthy.ndjson", { model: "deepseek/deepseek-v4.1-flash", control: { turns: 11 } });
+
+    const human = runCli(["report", runId, "--root", ROOT]);
+    expect(human.status).toBe(0);
+    expect(human.stdout).toContain(runId);
+
+    const json = runCli(["report", runId, "--root", ROOT, "--json"]);
+    expect(json.status).toBe(0);
+    const parsed = JSON.parse(json.stdout) as RunReport;
+    expect(parsed.run_id).toBe(runId);
+    expect(parsed.schema_version).toBe(REPORT_SCHEMA_VERSION);
+
+    const missing = runCli(["report", "no-such-run", "--root", ROOT]);
+    expect(missing.status).toBe(1);
+  }, 60_000);
+});
diff --git a/tests/run-comparison.test.ts b/tests/run-comparison.test.ts
new file mode 100644
index 0000000..8fa9c62
--- /dev/null
+++ b/tests/run-comparison.test.ts
@@ -0,0 +1,230 @@
+import { describe, expect, test } from "vitest";
+import type { RunRecord } from "../src/harness/experience-store.js";
+import {
+  attemptsToMatch,
+  bestOfN,
+  compareArms,
+  summarizeArm,
+  wilsonInterval,
+} from "../src/harness/run-comparison.js";
+
+const record = (overrides: Partial<RunRecord> = {}): RunRecord => ({
+  mission_id: "mission-a",
+  run_id: "run",
+  status: "passed",
+  ...overrides,
+});
+
+const arm = (passed: number, failed: number, extra: Partial<RunRecord> = {}): RunRecord[] => [
+  ...Array.from({ length: passed }, (_, i) => record({ run_id: `pass-${i}`, ...extra })),
+  ...Array.from({ length: failed }, (_, i) => record({ run_id: `fail-${i}`, status: "failed", ...extra })),
+];
+
+const priced = (records: RunRecord[], cost: number): RunRecord[] =>
+  records.map((value) => ({ ...value, cost_usd: cost }));
+
+const round = (value: number): number => Number(value.toFixed(4));
+
+describe("wilsonInterval", () => {
+  test("matches the published Wilson score interval for 8 of 10 at 95%", () => {
+    const interval = wilsonInterval(8, 10);
+    expect(round(interval.low)).toBe(0.4902);
+    expect(round(interval.high)).toBe(0.9433);
+    expect(interval.low).toBeCloseTo(0.490157, 5);
+    expect(interval.high).toBeCloseTo(0.943319, 5);
+  });
+
+  test("is maximally uncertain for an empty arm and clamps perfect arms", () => {
+    expect(wilsonInterval(0, 0)).toEqual({ low: 0, high: 1 });
+    expect(wilsonInterval(5, 0)).toEqual({ low: 0, high: 1 });
+    expect(round(wilsonInterval(5, 5).low)).toBe(0.5655);
+    expect(round(wilsonInterval(5, 5).high)).toBe(1);
+    expect(wilsonInterval(0, 10).low).toBeLessThan(0.0001);
+    expect(wilsonInterval(0, 10).high).toBeCloseTo(0.277538, 5);
+    expect(wilsonInterval(0, 10).high).toBeLessThanOrEqual(1);
+  });
+
+  test("narrows with more runs at the same rate", () => {
+    const small = wilsonInterval(4, 5);
+    const large = wilsonInterval(80, 100);
+    expect(large.high - large.low).toBeLessThan(small.high - small.low);
+    expect(round(large.low)).toBe(0.7112);
+    expect(round(large.high)).toBe(0.8666);
+  });
+});
+
+describe("summarizeArm", () => {
+  test("reports runs, passes, rate, interval and cost for a fully priced arm", () => {
+    const summary = summarizeArm([
+      record({ run_id: "r1", cost_usd: 1, duration_ms: 1000 }),
+      record({ run_id: "r2", cost_usd: 2, duration_ms: 3000 }),
+      record({ run_id: "r3", status: "failed", cost_usd: 3, duration_ms: 2000 }),
+    ]);
+    expect(summary).toMatchObject({
+      runs: 3,
+      passed: 2,
+      success_rate: 2 / 3,
+      known_cost_runs: 3,
+      total_cost_usd: 6,
+      mean_cost_usd: 2,
+      cost_per_success_usd: 3,
+      mean_duration_ms: 2000,
+    });
+    expect(summary.interval).toEqual(wilsonInterval(2, 3));
+  });
+
+  test("keeps unknown cost unknown and never divides by zero successes", () => {
+    const summary = summarizeArm([
+      record({ run_id: "r1" }),
+      record({ run_id: "r2", status: "failed" }),
+    ]);
+    expect(summary.passed).toBe(1);
+    expect(summary.known_cost_runs).toBe(0);
+    expect(summary.total_cost_usd).toBeUndefined();
+    expect(summary.mean_cost_usd).toBeUndefined();
+    expect(summary.cost_per_success_usd).toBeUndefined();
+    expect(summary.mean_duration_ms).toBeUndefined();
+  });
+
+  test("cost per success is undefined when nothing passed even though cost is known", () => {
+    const summary = summarizeArm([record({ status: "failed", cost_usd: 4 }), record({ status: "failed", cost_usd: 5 })]);
+    expect(summary).toMatchObject({ runs: 2, passed: 0, total_cost_usd: 9, mean_cost_usd: 4.5 });
+    expect(summary.cost_per_success_usd).toBeUndefined();
+  });
+
+  test("prices only the runs that report cost instead of padding with zeros", () => {
+    const summary = summarizeArm([
+      record({ run_id: "priced", cost_usd: 1.5 }),
+      record({ run_id: "free-pass" }),
+      record({ run_id: "unpriced-fail", status: "failed", cost_usd: undefined }),
+    ]);
+    expect(summary).toMatchObject({
+      runs: 3, passed: 2, known_cost_runs: 1, total_cost_usd: 1.5, mean_cost_usd: 1.5, cost_per_success_usd: 0.75,
+    });
+  });
+
+  test("an empty arm has no runs, no cost, and the full 0 to 1 interval", () => {
+    expect(summarizeArm([])).toEqual({
+      runs: 0,
+      passed: 0,
+      success_rate: 0,
+      interval: { low: 0, high: 1 },
+      known_cost_runs: 0,
+      total_cost_usd: undefined,
+      mean_cost_usd: undefined,
+      cost_per_success_usd: undefined,
+      mean_duration_ms: undefined,
+    });
+  });
+});
+
+describe("compareArms", () => {
+  test("insufficient_data when either arm has fewer than 5 runs, even with disjoint intervals", () => {
+    const comparison = compareArms(arm(4, 0), arm(0, 10));
+    expect(comparison.a.runs).toBe(4);
+    expect(comparison.intervals_overlap).toBe(false);
+    expect(comparison.verdict).toBe("insufficient_data");
+    expect(comparison.delta_success_rate).toBeCloseTo(1, 10);
+
+    expect(compareArms(arm(5, 0), arm(0, 0)).verdict).toBe("insufficient_data");
+    expect(compareArms(arm(4, 0), arm(0, 5)).verdict).toBe("insufficient_data");
+  });
+
+  test("no_clear_difference when intervals overlap despite a big-looking rate gap", () => {
+    const comparison = compareArms(arm(8, 2), arm(5, 5));
+    expect(comparison.a.success_rate).toBe(0.8);
+    expect(comparison.b.success_rate).toBe(0.5);
+    expect(comparison.intervals_overlap).toBe(true);
+    expect(comparison.verdict).toBe("no_clear_difference");
+    expect(comparison.delta_success_rate).toBeCloseTo(0.3, 10);
+  });
+
+  test("a_better when 10 of 10 beats 1 of 10 with disjoint intervals", () => {
+    const comparison = compareArms(arm(10, 0), arm(1, 9));
+    expect(comparison.intervals_overlap).toBe(false);
+    expect(comparison.verdict).toBe("a_better");
+    expect(comparison.delta_success_rate).toBeCloseTo(0.9, 10);
+  });
+
+  test("b_better is the mirror image of a_better", () => {
+    const comparison = compareArms(arm(1, 9), arm(10, 0));
+    expect(comparison.intervals_overlap).toBe(false);
+    expect(comparison.verdict).toBe("b_better");
+    expect(comparison.delta_success_rate).toBeCloseTo(-0.9, 10);
+  });
+
+  test("5 of 5 versus 0 of 5 is the smallest honest a_better", () => {
+    const comparison = compareArms(arm(5, 0), arm(0, 5));
+    expect(round(comparison.a.interval.low)).toBe(0.5655);
+    expect(round(comparison.b.interval.high)).toBe(0.4345);
+    expect(comparison.intervals_overlap).toBe(false);
+    expect(comparison.verdict).toBe("a_better");
+    expect(comparison.delta_success_rate).toBeCloseTo(1, 10);
+  });
+
+  test("9 of 10 versus 2 of 10 separates, and is the shape the CLI fixture uses", () => {
+    const comparison = compareArms(arm(9, 1), arm(2, 8));
+    expect(round(comparison.a.interval.low)).toBe(0.5958);
+    expect(round(comparison.b.interval.high)).toBe(0.5098);
+    expect(comparison.intervals_overlap).toBe(false);
+    expect(comparison.verdict).toBe("a_better");
+  });
+
+  test("cheaper_per_success names the cheaper arm only when both are priced", () => {
+    expect(compareArms(priced(arm(10, 0), 1), priced(arm(2, 8), 4)).cheaper_per_success).toBe("a");
+    expect(compareArms(priced(arm(2, 8), 1), priced(arm(10, 0), 4)).cheaper_per_success).toBe("b");
+    expect(compareArms(priced(arm(10, 0), 3), priced(arm(5, 0), 3)).cheaper_per_success).toBe("unknown");
+    expect(compareArms(arm(5, 0), priced(arm(1, 4), 2)).cheaper_per_success).toBe("unknown");
+    expect(compareArms(priced(arm(0, 5), 2), priced(arm(1, 4), 2)).cheaper_per_success).toBe("unknown");
+  });
+
+  test("an arm can be better on outcome and worse on cost, and both are reported", () => {
+    const stronger = compareArms(priced(arm(10, 0), 9), priced(arm(2, 8), 1));
+    expect(stronger.verdict).toBe("a_better");
+    expect(stronger.cheaper_per_success).toBe("b");
+    expect(stronger.a.cost_per_success_usd).toBe(9);
+    expect(stronger.b.cost_per_success_usd).toBe(5);
+  });
+
+  test("carries both arm summaries through", () => {
+    const comparison = compareArms(arm(8, 2), arm(5, 5));
+    expect(comparison.a).toEqual(summarizeArm(arm(8, 2)));
+    expect(comparison.b).toEqual(summarizeArm(arm(5, 5)));
+  });
+});
+
+describe("bestOfN and attemptsToMatch", () => {
+  test("best-of-n is the chance at least one attempt passes", () => {
+    expect(bestOfN(0.5, 1)).toBe(0.5);
+    expect(bestOfN(0.5, 3)).toBe(0.875);
+    expect(bestOfN(0.2, 5)).toBeCloseTo(0.67232, 5);
+    expect(bestOfN(0, 10)).toBe(0);
+    expect(bestOfN(1, 4)).toBe(1);
+    expect(bestOfN(0.5, 0)).toBe(0);
+  });
+
+  test("attemptsToMatch finds the smallest n that reaches the target", () => {
+    expect(attemptsToMatch(0.5, 0.9)).toBe(4);
+    expect(attemptsToMatch(0.8, 0.99)).toBe(3);
+    expect(attemptsToMatch(0.2, 0.9)).toBe(11);
+  });
+
+  test("a baseline that never passes cannot be repeated into success", () => {
+    expect(attemptsToMatch(0, 0.5)).toBeUndefined();
+    expect(attemptsToMatch(0, 0)).toBeUndefined();
+  });
+
+  test("caps at 16 when repeats cannot reach the target within the cap", () => {
+    expect(attemptsToMatch(0.1, 0.99)).toBe(16);
+    expect(bestOfN(0.1, 16)).toBeLessThan(0.99);
+    expect(attemptsToMatch(0.5, 0.99999)).toBe(16);
+    expect(bestOfN(0.5, 16)).toBeLessThan(0.99999);
+    expect(attemptsToMatch(0.2, 1)).toBe(16);
+  });
+
+  test("one attempt suffices when the baseline already matches the target", () => {
+    expect(attemptsToMatch(0.9, 0.9)).toBe(1);
+    expect(attemptsToMatch(0.9, 0.5)).toBe(1);
+    expect(attemptsToMatch(0.9, 0)).toBe(1);
+  });
+});
diff --git a/tests/runtime-accounting.test.ts b/tests/runtime-accounting.test.ts
new file mode 100644
index 0000000..7c636f6
--- /dev/null
+++ b/tests/runtime-accounting.test.ts
@@ -0,0 +1,221 @@
+import { describe, test, expect } from "vitest";
+import { mkdtemp, mkdir, writeFile, readFile, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { fileURLToPath } from "node:url";
+import path from "node:path";
+import {
+  nativeCostFactsFromEvents,
+  readNativeCostFacts,
+  readRuntimeAccounting,
+  resolveRunCost,
+} from "../src/harness/runtime-accounting.js";
+
+const FIXTURE_DIR = fileURLToPath(new URL("./fixtures/runtime-events", import.meta.url));
+
+async function fixture() {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-accounting-"));
+  const runs = path.join(root, ".harness", "missions", "one", "runs");
+  for (const [runId, status, cost] of [["first", "failed", 0.25], ["second", "passed", 0.75]] as const) {
+    await mkdir(path.join(runs, runId), { recursive: true });
+    await writeFile(path.join(runs, runId, "runtime-result.yaml"), JSON.stringify({
+      schema_version: "uh.runtime-result.v0", mission_id: "one", runtime: "oh-my-pi", status,
+      started_at: "2026-09-15T00:00:00Z", finished_at: "2026-09-15T00:01:00Z",
+      prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+      cost_usd: cost, cost_basis: "runtime_estimate", usage: { source: "runtime", total_tokens: 100 },
+    }));
+  }
+  await writeFile(path.join(runs, "second", "runtime-recovery.json"), JSON.stringify({
+    schema_version: "uh.runtime-recovery.v0", source_run_id: "first", session_id: "saved", notes: "Continue existing work",
+  }));
+  return { root, runs };
+}
+
+test("recovery accounting includes failed attempts once and cannot hide an unmeasured attempt", async () => {
+  const { root, runs } = await fixture();
+  try {
+    const complete = await readRuntimeAccounting(root, "one", ["second", "first"]);
+    expect(complete.facts.cost_usd).toBe(1);
+    expect(complete.facts.cost_basis).toBe("runtime_estimate");
+    expect(complete.facts.usage?.total_tokens).toBe(200);
+    await rm(path.join(runs, "first", "runtime-result.yaml"));
+    const incomplete = await readRuntimeAccounting(root, "one", ["second"]);
+    expect(incomplete.facts.cost_usd).toBeUndefined();
+    expect(incomplete.facts.usage?.total_tokens).toBeUndefined();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("cyclic recovery evidence is rejected rather than silently treated as a complete ledger", async () => {
+  const { root, runs } = await fixture();
+  try {
+    await writeFile(path.join(runs, "first", "runtime-recovery.json"), JSON.stringify({
+      schema_version: "uh.runtime-recovery.v0", source_run_id: "second", session_id: "saved", notes: "Invalid cycle",
+    }));
+    await expect(readRuntimeAccounting(root, "one", ["second"])).rejects.toThrow();
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+describe("Command Code cost provenance from the real native fixtures", () => {
+  test("the reduced Command Code streams carry neither token counts nor a price", async () => {
+    for (const name of ["command-code-healthy.ndjson", "command-code-denied-retries.ndjson"]) {
+      const lines = (await readFile(path.join(FIXTURE_DIR, name), "utf8")).split(/\r?\n/);
+      const facts = nativeCostFactsFromEvents(lines);
+      expect(facts.usage, name).toBeUndefined();
+      expect(facts.reported_cost_usd, name).toBeUndefined();
+      expect(facts.token_counts, name).toBeFalsy();
+    }
+  });
+
+  test("a Command Code run with a costless native stream stays unknown with a reason", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "uh-accounting-cmdc-"));
+    try {
+      const runDir = path.join(root, ".harness", "missions", "w1", "runs", "run-cmdc");
+      await mkdir(runDir, { recursive: true });
+      await writeFile(path.join(runDir, "runtime-result.yaml"), JSON.stringify({
+        schema_version: "uh.runtime-result.v0", mission_id: "w1", runtime: "command-code", status: "passed",
+        started_at: "2026-09-22T00:00:00.000Z", finished_at: "2026-09-22T00:01:00.000Z",
+        prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+      }));
+      // The real fixture is the run's captured native stream.
+      await writeFile(path.join(runDir, "events.ndjson"), await readFile(path.join(FIXTURE_DIR, "command-code-healthy.ndjson"), "utf8"));
+
+      const native = await readNativeCostFacts(runDir);
+      const cost = resolveRunCost({ runtime: "command-code", native });
+      expect(cost.cost_usd).toBeUndefined();
+      expect(cost.cost_source).toBeUndefined();
+      expect(cost.cost_unknown_reason).toMatch(/command-code/i);
+
+      // The accounting ledger never invents a cost from an unpriced stream.
+      const accounting = await readRuntimeAccounting(root, "w1", ["run-cmdc"]);
+      expect(accounting.facts.cost_usd).toBeUndefined();
+      expect(accounting.facts.usage).toBeUndefined();
+    } finally { await rm(root, { recursive: true, force: true }); }
+  });
+
+  test("a price the native stream reports is recorded as reported, never estimated", () => {
+    const facts = nativeCostFactsFromEvents([
+      JSON.stringify({ type: "model_request_end", model: "provider/model", usage: { inputTokens: 100, outputTokens: 20, cacheReadTokens: 0, cacheWriteTokens: 0 } }),
+      JSON.stringify({ type: "result", usage: { cost_usd: 0.25 } }),
+    ]);
+    expect(facts.model).toBe("provider/model");
+    expect(facts.usage).toMatchObject({ input_tokens: 100, output_tokens: 20 });
+    expect(facts.reported_cost_usd).toBe(0.25);
+    expect(resolveRunCost({ runtime: "command-code", native: facts })).toEqual({ cost_usd: 0.25, cost_source: "reported" });
+  });
+
+  test("token counts with no price stay unknown instead of being priced from a guess", () => {
+    const facts = nativeCostFactsFromEvents([
+      JSON.stringify({ type: "model_request_end", model: "provider/model", usage: { inputTokens: 100, outputTokens: 20 } }),
+    ]);
+    const cost = resolveRunCost({ runtime: "command-code", native: facts });
+    expect(cost.cost_usd).toBeUndefined();
+    expect(cost.cost_source).toBeUndefined();
+    expect(cost.cost_unknown_reason).toMatch(/no price/i);
+  });
+
+  test("the real-shaped usage fixture sums model_request_end usage once per call without double counting turn_end", async () => {
+    const lines = (await readFile(path.join(FIXTURE_DIR, "command-code-usage.ndjson"), "utf8")).split(/\r?\n/);
+    const facts = nativeCostFactsFromEvents(lines);
+    expect(facts.model).toBe("Qwen/Qwen3.8-Flash");
+    expect(facts.token_counts).toBe(true);
+    // 3 calls: input 17232+12044+9800, output 188+240+152, cache read 3x6144.
+    expect(facts.usage).toEqual({
+      source: "runtime",
+      input_tokens: 39076,
+      output_tokens: 580,
+      cache_read_tokens: 18432,
+      cache_write_tokens: 0,
+    });
+    expect(facts.reported_cost_usd).toBeUndefined();
+  });
+
+  test("turn_end usage is summed only when the stream has no model_request_end", () => {
+    const facts = nativeCostFactsFromEvents([
+      JSON.stringify({ type: "turn_end", turnNumber: 1, usage: { inputTokens: 50, outputTokens: 5, cacheReadTokens: 0, cacheWriteTokens: 0 } }),
+      JSON.stringify({ type: "turn_end", turnNumber: 2, usage: { inputTokens: 70, outputTokens: 7, cacheReadTokens: 11, cacheWriteTokens: 2 } }),
+    ]);
+    expect(facts.token_counts).toBe(true);
+    expect(facts.usage).toEqual({ source: "runtime", input_tokens: 120, output_tokens: 12, cache_read_tokens: 11, cache_write_tokens: 2 });
+  });
+
+  test("an operator price table prices the run as estimated; a missing entry names the model and the file to edit", async () => {
+    const lines = (await readFile(path.join(FIXTURE_DIR, "command-code-usage.ndjson"), "utf8")).split(/\r?\n/);
+    const facts = nativeCostFactsFromEvents(lines);
+    const priceTable = new Map([["qwen/qwen3.8-flash", {
+      input_usd_per_million: 2,
+      output_usd_per_million: 8,
+      cache_read_usd_per_million: 0.4,
+      cache_write_usd_per_million: 1,
+      source: "test placeholder, not a real price",
+    }]]);
+    // (39076*2 + 580*8 + 18432*0.4 + 0*1) / 1e6
+    const priced = resolveRunCost({ runtime: "command-code", native: facts, priceTable });
+    expect(priced.cost_source).toBe("estimated");
+    expect(priced.cost_usd).toBeCloseTo(0.0901648, 12);
+
+    const unknown = resolveRunCost({ runtime: "command-code", native: facts });
+    expect(unknown.cost_usd).toBeUndefined();
+    expect(unknown.cost_source).toBeUndefined();
+    expect(unknown.cost_unknown_reason).toMatch(/Qwen\/Qwen3\.8-Flash/);
+    expect(unknown.cost_unknown_reason).toMatch(/\.harness\/prices\.yaml/);
+  });
+
+  test("partial token measurements are never priced, even when the table has the model", () => {
+    const facts = nativeCostFactsFromEvents([
+      JSON.stringify({ type: "model_request_end", model: "provider/model", usage: { inputTokens: 100, outputTokens: 20 } }),
+    ]);
+    const priceTable = new Map([["provider/model", {
+      input_usd_per_million: 1,
+      output_usd_per_million: 1,
+      cache_read_usd_per_million: 1,
+      cache_write_usd_per_million: 1,
+      source: "test placeholder, not a real price",
+    }]]);
+    const cost = resolveRunCost({ runtime: "command-code", native: facts, priceTable });
+    expect(cost.cost_usd).toBeUndefined();
+    expect(cost.cost_unknown_reason).toMatch(/incomplete/);
+  });
+
+  test("accounting facts carry native token usage and the operator-table estimate for a command-code run", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "uh-accounting-prices-"));
+    try {
+      const runDir = path.join(root, ".harness", "missions", "w1", "runs", "run-cmdc");
+      await mkdir(runDir, { recursive: true });
+      await writeFile(path.join(runDir, "runtime-result.yaml"), JSON.stringify({
+        schema_version: "uh.runtime-result.v0", mission_id: "w1", runtime: "command-code", status: "passed",
+        started_at: "2026-09-22T00:00:00.000Z", finished_at: "2026-09-22T00:01:00.000Z",
+        prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+      }));
+      await writeFile(path.join(runDir, "events.ndjson"), await readFile(path.join(FIXTURE_DIR, "command-code-usage.ndjson"), "utf8"));
+      await writeFile(path.join(root, ".harness", "prices.yaml"), [
+        "schema_version: uh.prices.v0",
+        "models:",
+        "  qwen/qwen3.8-flash:",
+        "    input_usd_per_million: 2",
+        "    output_usd_per_million: 8",
+        "    cache_read_usd_per_million: 0.4",
+        "    cache_write_usd_per_million: 1",
+        '    source: "test placeholder, not a real price"',
+      ].join("\n") + "\n", "utf8");
+
+      const accounting = await readRuntimeAccounting(root, "w1", ["run-cmdc"]);
+      expect(accounting.facts.cost_usd).toBeCloseTo(0.0901648, 12);
+      expect(accounting.facts.cost_basis).toBe("configured_estimate");
+      expect(accounting.facts.model).toBe("Qwen/Qwen3.8-Flash");
+      expect(accounting.facts.usage).toMatchObject({
+        input_tokens: 39076,
+        output_tokens: 580,
+        cache_read_tokens: 18432,
+        cache_write_tokens: 0,
+      });
+    } finally { await rm(root, { recursive: true, force: true }); }
+  });
+
+  test("a runtime-computed amount is labelled estimated, a reported one is not", () => {
+    expect(resolveRunCost({ runtime: "command-code", resultCostUsd: 1, resultCostBasis: "runtime_estimate" }))
+      .toEqual({ cost_usd: 1, cost_source: "estimated" });
+    expect(resolveRunCost({ resultCostUsd: 1, resultCostBasis: "provider_reported" }))
+      .toEqual({ cost_usd: 1, cost_source: "reported" });
+    expect(resolveRunCost({ runtime: "hermes", resultCostUsd: undefined }))
+      .toEqual({ cost_unknown_reason: "runtime reported no cost" });
+  });
+});
diff --git a/tests/runtime-config-overrides.test.ts b/tests/runtime-config-overrides.test.ts
index f03c0a8..e842d41 100644
--- a/tests/runtime-config-overrides.test.ts
+++ b/tests/runtime-config-overrides.test.ts
@@ -1,5 +1,7 @@
-import { describe, expect, test, beforeAll, beforeEach, afterEach } from "vitest";
+import { describe, expect, test, beforeAll, beforeEach, afterEach, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { initializeHarness } from "../src/harness/init.js";
 import { planHermesRun } from "../src/adapters/hermes.js";
@@ -9,7 +11,7 @@ import {
   parseRuntimeConfigOverridesJson,
 } from "../src/harness/runtime-config-overrides.js";
 
-const TEST_ROOT = "/tmp/uh-test-runtime-config-overrides";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-runtime-config-overrides-"));
 
 describe("parseRuntimeConfigOverridesJson", () => {
   test("returns the parsed object for a valid JSON object", () => {
@@ -108,6 +110,7 @@ describe("planHermesRun threads extra overrides through the merge (UH-81)", () =
   }
 
   beforeAll(cleanup);
+  afterAll(cleanup);
   beforeEach(async () => {
     await cleanup();
     await mkdir(TEST_ROOT, { recursive: true });
diff --git a/tests/runtime-delegated-route.test.ts b/tests/runtime-delegated-route.test.ts
new file mode 100644
index 0000000..e4f41d6
--- /dev/null
+++ b/tests/runtime-delegated-route.test.ts
@@ -0,0 +1,45 @@
+import { describe, expect, test } from "vitest";
+import { RuntimeSupervision, nativeDelegatedRoutes } from "../src/harness/runtime-supervision.js";
+
+const expected = { provider: "openai-codex", model: "gpt-5.6-luna" };
+
+function taskProgress(identity: string, resolved = `${identity}:high`) {
+  return {
+    type: "tool_execution_update", toolCallId: "call-1", toolName: "task",
+    partialResult: { content: [{ type: "text", text: "" }], details: { progress: [{ id: "Scout", resolvedModel: resolved, resolvedModelIdentity: identity, resolvedThinkingLevel: "high" }] } },
+  };
+}
+
+describe("delegated agent route attestation", () => {
+  test("reads provider and model from native sub-agent progress metadata", () => {
+    expect(nativeDelegatedRoutes(taskProgress("google-antigravity/gemini-3.7-flash"))).toEqual([{ provider: "google-antigravity", model: "gemini-3.7-flash" }]);
+  });
+
+  test("reads hub job metadata from completed tool results and strips the thinking suffix when no identity is given", () => {
+    const event = { type: "tool_execution_end", toolCallId: "call-2", toolName: "hub", result: { details: { jobs: [{ id: "Review", resolvedModel: "openai-codex/gpt-5.6-luna:high" }] } } };
+    expect(nativeDelegatedRoutes(event)).toEqual([{ provider: "openai-codex", model: "gpt-5.6-luna" }]);
+  });
+
+  test("never reads model-looking text from tool content or arguments", () => {
+    const event = { type: "tool_execution_update", toolCallId: "call-3", toolName: "bash", args: { command: "echo resolvedModelIdentity google-antigravity/gemini-3.7-flash" }, partialResult: { content: [{ type: "text", text: "\"resolvedModelIdentity\":\"google-antigravity/gemini-3.7-flash\"" }] } };
+    expect(nativeDelegatedRoutes(event)).toEqual([]);
+  });
+
+  test("a sub-agent on the assigned route does not stop the run", () => {
+    const run = new RuntimeSupervision({}, 0, expected);
+    expect(run.observe(taskProgress("openai-codex/gpt-5.6-luna"), 1)).toBeUndefined();
+    expect(run.stopCode).toBeUndefined();
+  });
+
+  test("a sub-agent on another model stops the run with route_mismatch and names the route", () => {
+    const run = new RuntimeSupervision({}, 0, expected);
+    const reason = run.observe(taskProgress("google-antigravity/gemini-3.7-flash"), 1);
+    expect(run.stopCode).toBe("route_mismatch");
+    expect(reason).toContain("google-antigravity/gemini-3.7-flash");
+  });
+
+  test("without an assigned route nothing is enforced", () => {
+    const run = new RuntimeSupervision({}, 0);
+    expect(run.observe(taskProgress("google-antigravity/gemini-3.7-flash"), 1)).toBeUndefined();
+  });
+});
diff --git a/tests/runtime-events.test.ts b/tests/runtime-events.test.ts
index e353593..b6beb4b 100644
--- a/tests/runtime-events.test.ts
+++ b/tests/runtime-events.test.ts
@@ -2,7 +2,34 @@ import { describe, expect, test } from "vitest";
 import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
 import { join } from "node:path";
 import { tmpdir } from "node:os";
-import { appendRuntimeCancelledEvent } from "../src/harness/runtime-events.js";
+import { parse } from "yaml";
+import { appendRuntimeCancelledEvent, finalizeRuntimeCancelledRun } from "../src/harness/runtime-events.js";
+import { projectDeliveryObservatory } from "../src/harness/delivery-observatory/project.js";
+
+async function seedMission(
+  root: string,
+  missionId: string,
+  latestRun: { run_id: string; started_at: string; status: string },
+  runs: Array<{ run_id: string; started_at: string; status: string; runtime: string }>,
+): Promise<string> {
+  const missionDir = join(root, ".harness", "missions", missionId);
+  await mkdir(join(missionDir, "runs"), { recursive: true });
+  await writeFile(join(missionDir, "mission.yaml"), [
+    "schema_version: uh.mission.v0",
+    `id: ${missionId}`,
+    "name: Cancellation smoke",
+    "workflow_profile: staged",
+  ].join("\n"), "utf-8");
+  await writeFile(join(missionDir, "latest.json"), JSON.stringify({
+    schema_version: "uh.latest-run.v0",
+    ...latestRun,
+  }), "utf-8");
+  await writeFile(join(missionDir, "runs", "index.json"), JSON.stringify({
+    schema_version: "uh.runs-index.v0",
+    runs,
+  }), "utf-8");
+  return missionDir;
+}
 
 describe("runtime cancellation events", () => {
   test("appends runtime.cancelled to the active run's events.ndjson", async () => {
@@ -129,4 +156,156 @@ describe("runtime cancellation events", () => {
       await rm(root, { recursive: true, force: true });
     }
   });
+  test("finalizes explicit canonical cancellation across latest, runs index, result, and events", async () => {
+    const root = await mkdtemp(join(tmpdir(), "uh-test-runtime-events-finalize-"));
+    try {
+      const missionDir = join(root, ".harness", "missions", "m-cancel-final");
+      await mkdir(join(missionDir, "runs"), { recursive: true });
+      const runId = "20260521T120000Z-cafe00";
+      await writeFile(join(missionDir, "latest.json"), JSON.stringify({
+        schema_version: "uh.latest-run.v0",
+        run_id: runId,
+        started_at: "2026-05-21T12:00:00.000Z",
+        status: "running",
+      }), "utf-8");
+      await writeFile(join(missionDir, "runs", "index.json"), JSON.stringify({
+        schema_version: "uh.runs-index.v0",
+        runs: [{ run_id: runId, started_at: "2026-05-21T12:00:00.000Z", status: "running", runtime: "oh-my-pi" }],
+      }), "utf-8");
+      const eventPath = finalizeRuntimeCancelledRun({
+        root,
+        missionId: "m-cancel-final",
+        runId,
+        runtime: "oh-my-pi",
+        signal: "SIGTERM",
+        timestamp: "2026-05-21T12:00:01.000Z",
+      });
+      expect(eventPath).not.toBeNull();
+      expect(JSON.parse(await readFile(join(missionDir, "latest.json"), "utf-8")).status).toBe("cancelled");
+      expect(JSON.parse(await readFile(join(missionDir, "runs", "index.json"), "utf-8")).runs[0].status).toBe("cancelled");
+      expect(await readFile(join(missionDir, "runs", runId, "runtime-result.yaml"), "utf-8")).toContain("status: cancelled");
+      expect((await readFile(eventPath!, "utf-8")).match(/runtime\.cancelled/g)?.length).toBe(1);
+      expect((await readFile(eventPath!, "utf-8")).match(/runtime\.finished/g)?.length).toBe(1);
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+  test("projects cancellation as the selected run through the existing Observatory", async () => {
+    const root = await mkdtemp(join(tmpdir(), "uh-test-runtime-events-observatory-"));
+    try {
+      const runId = "20260522T120000Z-cafe00";
+      await seedMission(root, "m-observe-cancel", {
+        run_id: runId,
+        started_at: "2026-05-22T12:00:00.000Z",
+        status: "running",
+      }, [{ run_id: runId, started_at: "2026-05-22T12:00:00.000Z", status: "running", runtime: "oh-my-pi" }]);
+      finalizeRuntimeCancelledRun({
+        root,
+        missionId: "m-observe-cancel",
+        runId,
+        runtime: "oh-my-pi",
+        signal: "SIGTERM",
+        timestamp: "2026-05-22T12:00:01.000Z",
+      });
+      const snapshot = await projectDeliveryObservatory(root, { now: "2026-05-22T12:00:02.000Z" });
+      expect(snapshot.work_items[0]).toMatchObject({
+        operation: "cancelled",
+        adapter: { state: "known", value: "oh-my-pi" },
+      });
+      expect(snapshot.events.some((event) => event.safe_summary === "Run status changed to cancelled.")).toBe(true);
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  test("cancels an explicitly selected older run without changing newer latest or mirrors", async () => {
+    const root = await mkdtemp(join(tmpdir(), "uh-test-runtime-events-stale-latest-"));
+    try {
+      const oldRunId = "20260522T120000Z-old000";
+      const newRunId = "20260522T120001Z-new000";
+      const missionDir = await seedMission(root, "m-stale-cancel", {
+        run_id: newRunId,
+        started_at: "2026-05-22T12:00:01.000Z",
+        status: "running",
+      }, [
+        { run_id: oldRunId, started_at: "2026-05-22T12:00:00.000Z", status: "running", runtime: "oh-my-pi" },
+        { run_id: newRunId, started_at: "2026-05-22T12:00:01.000Z", status: "running", runtime: "oh-my-pi" },
+      ]);
+      const oldRunDir = join(missionDir, "runs", oldRunId);
+      await mkdir(oldRunDir, { recursive: true });
+      await writeFile(join(oldRunDir, "runtime-session.yaml"), [
+        "schema_version: uh.runtime-session.v0", "mission_id: m-stale-cancel", "runtime: oh-my-pi",
+        "status: running", "started_at: 2026-05-22T12:00:00.000Z",
+      ].join("\n"), "utf-8");
+      const latestBefore = await readFile(join(missionDir, "latest.json"), "utf-8");
+      const resultMirrorBefore = "newer result mirror must remain byte-for-byte unchanged\n";
+      const sessionMirrorBefore = "newer session mirror must remain byte-for-byte unchanged\n";
+      await writeFile(join(missionDir, "runtime-result.yaml"), resultMirrorBefore, "utf-8");
+      await writeFile(join(missionDir, "runtime-session.yaml"), sessionMirrorBefore, "utf-8");
+
+      finalizeRuntimeCancelledRun({
+        root,
+        missionId: "m-stale-cancel",
+        runId: oldRunId,
+        runtime: "oh-my-pi",
+        signal: "SIGTERM",
+        timestamp: "2026-05-22T12:00:05.000Z",
+      });
+
+      expect(await readFile(join(missionDir, "latest.json"), "utf-8")).toBe(latestBefore);
+      expect(await readFile(join(missionDir, "runtime-result.yaml"), "utf-8")).toBe(resultMirrorBefore);
+      expect(await readFile(join(missionDir, "runtime-session.yaml"), "utf-8")).toBe(sessionMirrorBefore);
+      const index = JSON.parse(await readFile(join(missionDir, "runs", "index.json"), "utf-8")) as {
+        runs: Array<{ run_id: string; status: string }>;
+      };
+      expect(index.runs).toEqual([
+        { run_id: oldRunId, started_at: "2026-05-22T12:00:00.000Z", status: "cancelled", runtime: "oh-my-pi", finished_at: "2026-05-22T12:00:05.000Z" },
+        { run_id: newRunId, started_at: "2026-05-22T12:00:01.000Z", status: "running", runtime: "oh-my-pi" },
+      ]);
+      expect(parse(await readFile(join(oldRunDir, "runtime-result.yaml"), "utf-8"))).toMatchObject({
+        status: "cancelled",
+        started_at: "2026-05-22T12:00:00.000Z",
+        finished_at: "2026-05-22T12:00:05.000Z",
+      });
+      expect(parse(await readFile(join(oldRunDir, "runtime-session.yaml"), "utf-8"))).toMatchObject({
+        status: "failed",
+        started_at: "2026-05-22T12:00:00.000Z",
+        finished_at: "2026-05-22T12:00:05.000Z",
+      });
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  test("persists terminal result, session, and index when cancellation event append fails", async () => {
+    const root = await mkdtemp(join(tmpdir(), "uh-test-runtime-events-write-failure-"));
+    try {
+      const runId = "20260522T120002Z-cafe00";
+      const missionDir = await seedMission(root, "m-event-failure", {
+        run_id: runId,
+        started_at: "2026-05-22T12:00:02.000Z",
+        status: "running",
+      }, [{ run_id: runId, started_at: "2026-05-22T12:00:02.000Z", status: "running", runtime: "oh-my-pi" }]);
+      await mkdir(join(missionDir, "runs", runId, "events.ndjson"), { recursive: true });
+      const eventPath = finalizeRuntimeCancelledRun({
+        root,
+        missionId: "m-event-failure",
+        runId,
+        runtime: "oh-my-pi",
+        signal: "SIGTERM",
+        timestamp: "2026-05-22T12:00:03.000Z",
+      });
+      expect(eventPath).toBeNull();
+      expect(parse(await readFile(join(missionDir, "runs", runId, "runtime-result.yaml"), "utf-8"))).toMatchObject({ status: "cancelled" });
+      expect(parse(await readFile(join(missionDir, "runs", runId, "runtime-session.yaml"), "utf-8"))).toMatchObject({ status: "failed" });
+      expect(JSON.parse(await readFile(join(missionDir, "runs", "index.json"), "utf-8")).runs[0]).toMatchObject({
+        run_id: runId,
+        status: "cancelled",
+        finished_at: "2026-05-22T12:00:03.000Z",
+      });
+    } finally {
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
 });
diff --git a/tests/runtime-process.test.ts b/tests/runtime-process.test.ts
new file mode 100644
index 0000000..f068037
--- /dev/null
+++ b/tests/runtime-process.test.ts
@@ -0,0 +1,374 @@
+import { test, expect } from "vitest";
+import { mkdtemp, mkdir, readFile, rm, stat, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { setTimeout as delay } from "node:timers/promises";
+import { spawn } from "node:child_process";
+import { runRuntimeProcess, type RuntimeProcessOutput } from "../src/harness/runtime-process.js";
+import { cancelLocalMissionRun } from "../src/harness/mission-cancel.js";
+
+// Real child processes and filesystem visibility cannot be driven by Vitest's fake clock.
+async function waitForFile(file: string, predicate: (text: string) => boolean) {
+  for (let i = 0; i < 100; i++) {
+    try { const text = await readFile(file, "utf8"); if (predicate(text)) return text; } catch { /* Not persisted yet. */ }
+    await delay(20);
+  }
+  throw new Error(`Expected persisted state at ${file}`);
+}
+
+/**
+ * Supervision deadlines are fired by advancing this clock, never by waiting
+ * out wall time, so the tests stay deterministic under machine load.
+ */
+function manualClock() {
+  let current = Date.now();
+  const polls: Array<() => void> = [];
+  return {
+    now: () => current,
+    setInterval: (callback: () => void) => { polls.push(callback); return polls.length; },
+    clearInterval: () => {},
+    advance: (milliseconds: number) => { current += milliseconds; for (const poll of [...polls]) poll(); },
+  };
+}
+
+/** Yield to the event loop without sleeping on wall time. */
+const yieldToEventLoop = () => new Promise<void>(resolve => setImmediate(resolve));
+
+test("local cancellation settles only the selected real child and preserves live transcript", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-local-cancel-"));
+  const directory = path.join(root, ".harness", "missions", "one", "runs", "attempt-one");
+  const abort = new AbortController();
+  let running: Promise<RuntimeProcessOutput> | undefined;
+  try {
+    await mkdir(directory, { recursive: true });
+    await writeFile(path.join(root, ".harness", "missions", "one", "mission.yaml"), "schema_version: uh.mission.v0\nid: one\n");
+    running = runRuntimeProcess({ command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'native-session'})); console.log(JSON.stringify({type:'tool_execution_start',toolCallId:'one'})); setInterval(()=>{},1000)"],
+      cwd: root, cancellationSignal: abort.signal, timeoutMs: 5000,
+      getUsage: () => ({ source: "runtime", input_tokens: 7, cache_read_tokens: 11 }),
+      artifacts: { directory, missionId: "one", runId: "attempt-one", runtime: "fixture" },
+    });
+    const live = await waitForFile(path.join(directory, "runtime.stdout.log"), text => text.includes("tool_execution_start"));
+    expect(live).toContain("tool_execution_start");
+    const liveControl = JSON.parse(await waitForFile(path.join(directory, "runtime-control.json"),
+      text => JSON.parse(text).status === "running" && JSON.parse(text).usage?.input_tokens === 7));
+    expect(liveControl.usage).toMatchObject({ input_tokens: 7, cache_read_tokens: 11 });
+    const cancellation = await cancelLocalMissionRun(root, "one", "attempt-one");
+    const result = await running;
+    expect(cancellation.status).toBe("cancelled");
+    expect(result.cancelled).toBe(true);
+    expect(result.exitCode).not.toBe(0);
+    expect(result.sessionId).toBe("native-session");
+    const persisted = JSON.parse(await readFile(path.join(directory, "runtime-control.json"), "utf8"));
+    expect(persisted.status).toBe("cancelled");
+    expect(persisted.usage).toMatchObject({ input_tokens: 7, cache_read_tokens: 11 });
+    expect(persisted.usage.total_tokens).toBeUndefined();
+    expect(await readFile(path.join(directory, "runtime.stdout.log"), "utf8")).toBe(result.stdout);
+    expect((await cancelLocalMissionRun(root, "one", "attempt-one")).status).toBe("cancelled");
+    await expect(cancelLocalMissionRun(root, "one", "other-attempt")).rejects.toThrow();
+  } finally {
+    abort.abort();
+    if (running) await running;
+    await rm(root, { recursive: true, force: true });
+  }
+});
+test("a failed periodic heartbeat does not stop an otherwise successful run", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-heartbeat-retry-"));
+  const clock = manualClock();
+  const startedAt = clock.now();
+  let heartbeatFailures = 0;
+  // Serializes the "running" persists and exposes their completion, so the
+  // test advances virtual time only after the initial and stdout-driven
+  // persists have drained; the next running-persist is then a heartbeat.
+  let runningPersistsDrained: Promise<void> = Promise.resolve();
+  try {
+    const run = runRuntimeProcess({
+      command: process.execPath,
+      // The child stays alive until the test confirms the heartbeat mechanism
+      // ran, then exits on signal; the 10s backstop only bounds failure paths.
+      args: ["-e", "const fs=require('node:fs'); process.stdout.write(JSON.stringify({type:'session',id:'heartbeat'})+'\\n'+JSON.stringify({type:'run_end'})+'\\n'); setInterval(()=>{ if (fs.existsSync('heartbeat-exercised')) process.exit(0); },20); setTimeout(()=>process.exit(0),10000)"],
+      cwd: root,
+      timeoutMs: 5000,
+      clock,
+      artifacts: { directory: path.join(root, "run"), missionId: "one", runId: "one", runtime: "fixture" },
+      persistArtifact: async (_file, content) => {
+        if (JSON.parse(content).status !== "running") return;
+        const previous = runningPersistsDrained;
+        let release!: () => void;
+        runningPersistsDrained = new Promise<void>(resolve => { release = resolve; });
+        try {
+          await previous;
+          if (clock.now() - startedAt > 500) { heartbeatFailures++; throw new Error("simulated heartbeat failure"); }
+        } finally { release(); }
+      },
+    });
+    let settled = false;
+    void run.then(() => { settled = true; });
+    await waitForFile(path.join(root, "run", "runtime.stdout.log"), text => text.includes("run_end"));
+    await runningPersistsDrained;
+    // Advance across the 1s heartbeat interval so a poll fires a heartbeat
+    // persist, which fails; a real tick never has to elapse for this.
+    while (heartbeatFailures === 0 && !settled) {
+      clock.advance(1500);
+      await yieldToEventLoop();
+    }
+    await writeFile(path.join(root, "heartbeat-exercised"), "", "utf8");
+    const result = await run;
+    expect(heartbeatFailures).toBe(1);
+    expect(result.exitCode).toBe(0);
+    expect(result.supervisionStopCode).toBeUndefined();
+  } finally {
+    await writeFile(path.join(root, "heartbeat-exercised"), "", "utf8").catch(() => {});
+    await rm(root, { recursive: true, force: true, maxRetries: 10, retryDelay: 50 });
+  }
+}, 10_000);
+
+test("real process with no progress is stopped without a provider call", async () => {
+  const clock = manualClock();
+  const run = runRuntimeProcess({ command: process.execPath,
+    args: ["-e", "setInterval(()=>{},1000)"], cwd: process.cwd(), limits: { startup_timeout_ms: 100 }, clock,
+  });
+  let settled = false;
+  void run.then(() => { settled = true; });
+  // Advance virtual time past the startup budget so the readiness deadline
+  // fires on the next poll, exactly when intended, independent of load.
+  while (!settled) {
+    clock.advance(200);
+    await yieldToEventLoop();
+  }
+  const result = await run;
+  expect(result.exitCode).not.toBe(0);
+  expect(result.timedOut).toBe(true);
+});
+
+test("a native max_turns result settles its receipt as turn_limit with a non-empty reason", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-native-turn-cap-"));
+  try {
+    const result = await runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'turn-cap'})); console.log(JSON.stringify({type:'result',subtype:'error_max_turns',stopReason:'max_turns',num_turns:100}))"],
+      cwd: root,
+      artifacts: { directory: root, missionId: "one", runId: "turn-cap", runtime: "fixture" },
+    });
+    expect(result.supervisionStopCode).toBe("turn_limit");
+    const control = JSON.parse(await readFile(path.join(root, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ status: "failed", stop_code: "turn_limit" });
+    expect(control.stop_reason).toBe("Native turn cap (max_turns) reached after 100 turns");
+    expect(control.turns).toBe(100);
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 15000);
+
+test("an unrecognized native terminal stop settles as runtime_error with the reason copied", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-native-stop-reason-"));
+  try {
+    const result = await runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'native-stop'})); console.log(JSON.stringify({type:'result',finalText:'partial',stopReason:'aborted',num_turns:4}))"],
+      cwd: root,
+      artifacts: { directory: root, missionId: "one", runId: "native-stop", runtime: "fixture" },
+    });
+    expect(result.supervisionStopCode).toBe("runtime_error");
+    const control = JSON.parse(await readFile(path.join(root, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ status: "failed", stop_code: "runtime_error" });
+    expect(control.stop_reason).toBe("Runtime reported failure (aborted)");
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 15000);
+
+test.skipIf(process.platform !== "win32")("job cap prevents an owned child from committing excessive memory", async () => {
+  const outcome = await runRuntimeProcess({
+    command: process.execPath,
+    args: ["-e", "const b = Buffer.alloc(256 * 1024 * 1024, 7); console.log('ALLOCATION_COMPLETED', b[0]);"],
+    cwd: process.cwd(),
+    limits: { memory_mb: 64, timeout_ms: 5000 },
+  });
+  expect(outcome.exitCode).not.toBe(0);
+  expect(outcome.stdout).not.toContain("ALLOCATION_COMPLETED");
+  expect(outcome.timedOut).toBe(false);
+});
+
+test.skipIf(process.platform !== "win32")("controller death settles the owned worker tree and publishes failure", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-controller-loss-"));
+  const worker = "const fs=require('node:fs'); const child=require('node:child_process').spawn(process.execPath,['-e','setInterval(()=>{},1000)'],{detached:true,stdio:'ignore'}); child.unref(); fs.writeFileSync('pids.json',JSON.stringify([process.pid,child.pid])); setInterval(()=>{},1000);";
+  const options = { command: process.execPath, args: ["-e", worker], cwd: root,
+    limits: { timeout_ms: 10000 },
+    artifacts: { directory: root, missionId: "one", runId: "owner-loss", runtime: "fixture" },
+  };
+  const source = `import {runRuntimeProcess} from ${JSON.stringify(new URL("../src/harness/runtime-process.ts", import.meta.url).href)}; await runRuntimeProcess(${JSON.stringify(options)});`;
+  const controller = spawn(process.execPath, ["--import", "tsx", "--input-type=module", "-e", source], { stdio: "ignore", windowsHide: true });
+  const closed = new Promise<void>(resolve => controller.once("close", () => resolve()));
+  try {
+    const pids: number[] = JSON.parse(await waitForFile(path.join(root, "pids.json"), text => Boolean(text.trim())));
+    controller.kill("SIGKILL");
+    await closed;
+    const control = JSON.parse(await waitForFile(path.join(root, "runtime-control.json"), text => JSON.parse(text).status === "failed"));
+    expect(control).toMatchObject({ stop_code: "controller_lost", settlement_confirmed: true });
+    for (const pid of pids) expect(() => process.kill(pid, 0)).toThrow();
+  } finally {
+    controller.kill("SIGKILL");
+    await closed;
+    // The guardian publishes the receipt immediately before releasing its executable handle.
+    await rm(root, { recursive: true, force: true, maxRetries: 10, retryDelay: 50 });
+  }
+}, 15000);
+
+test("combined output limit settles a noisy child and bounds both durable streams", async () => {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-output-cap-"));
+  const limit = 32 * 1024;
+  try {
+    const result = await runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'bounded-output'})); let n=0; setInterval(()=>{(n++%2 ? process.stdout : process.stderr).write('é'.repeat(8192));},20);"],
+      cwd: root, limits: { max_output_bytes: limit, timeout_ms: 10000 },
+      artifacts: { directory: root, missionId: "one", runId: "noisy", runtime: "fixture" },
+    });
+    expect(result.exitCode).not.toBe(0);
+    expect(result.timedOut).toBe(false);
+    expect(result.sessionId).toBe("bounded-output");
+    expect(Buffer.byteLength(result.stdout) + Buffer.byteLength(result.stderr)).toBeLessThanOrEqual(limit);
+    expect(await readFile(path.join(root, "runtime.stdout.log"), "utf8")).toBe(result.stdout);
+    expect(await readFile(path.join(root, "runtime.stderr.log"), "utf8")).toBe(result.stderr);
+    const control = JSON.parse(await readFile(path.join(root, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ status: "failed", stop_code: "output_limit" });
+    if (process.platform === "win32") expect(control.settlement_confirmed).toBe(true);
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 15000);
+
+test.skipIf(process.platform !== "win32")("Windows-only guardian cache is reused across runs (non-Windows skips because the guardian requires PowerShell)", async () => {
+  const cacheRoot = await mkdtemp(path.join(tmpdir(), "uh-guardian-cache-"));
+  const previousLocalAppData = process.env.LOCALAPPDATA;
+  process.env.LOCALAPPDATA = cacheRoot;
+  const roots: string[] = [];
+  let cachedMtime: number | undefined;
+  try {
+    for (const runId of ["first", "second"]) {
+      const root = await mkdtemp(path.join(tmpdir(), `uh-guardian-${runId}-`));
+      roots.push(root);
+      const result = await runRuntimeProcess({
+        command: process.execPath,
+        args: ["-e", "console.log(JSON.stringify({type:'session',id:'guardian-cache'}));"],
+        cwd: root,
+        artifacts: { directory: root, missionId: "one", runId, runtime: "fixture" },
+      });
+      expect(result.exitCode).toBe(0);
+      const control = JSON.parse(await readFile(path.join(root, "runtime-control.json"), "utf8"));
+      expect(control.guardian.mode).toBe("cache");
+      if (runId === "first") {
+        cachedMtime = (await stat(control.guardian.path)).mtimeMs;
+        // Let a mistaken second PowerShell compilation produce a distinct mtime.
+        await delay(100);
+      } else {
+        expect((await stat(control.guardian.path)).mtimeMs).toBe(cachedMtime);
+      }
+    }
+  } finally {
+    if (previousLocalAppData === undefined) delete process.env.LOCALAPPDATA;
+    else process.env.LOCALAPPDATA = previousLocalAppData;
+    for (const root of roots) await rm(root, { recursive: true, force: true });
+    await rm(cacheRoot, { recursive: true, force: true });
+  }
+}, 15000);
+
+test.skipIf(process.platform !== "win32")("Windows-only guardian accepts forward-slash artifact paths (non-Windows skips because the guardian requires PowerShell)", async () => {
+  const cacheRoot = await mkdtemp("T:/tmp/uh-guardian-forward-cache-");
+  const root = await mkdtemp("T:/tmp/uh-guardian-forward-");
+  const previousLocalAppData = process.env.LOCALAPPDATA;
+  process.env.LOCALAPPDATA = cacheRoot.replaceAll("\\", "/");
+  try {
+    // Keep the drive path in T:/tmp while exercising a pre-extended forward-slash form.
+    const artifactsDirectory = `//?/${root.replaceAll("\\", "/")}`;
+    const result = await runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'guardian-forward'}));"],
+      cwd: root,
+      artifacts: { directory: artifactsDirectory, missionId: "one", runId: "forward", runtime: "fixture" },
+    });
+    expect(result.exitCode).toBe(0);
+    expect(result.stderr).not.toContain("UH Windows job failed");
+    const receipt = JSON.parse(await readFile(path.join(root, "windows-job-result.json"), "utf8"));
+    expect(receipt.settled).toBe(true);
+    const control = JSON.parse(await readFile(path.join(root, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ settlement_confirmed: true, guardian: { mode: "cache" } });
+  } finally {
+    if (previousLocalAppData === undefined) delete process.env.LOCALAPPDATA;
+    else process.env.LOCALAPPDATA = previousLocalAppData;
+    await rm(root, { recursive: true, force: true });
+    await rm(cacheRoot, { recursive: true, force: true });
+  }
+}, 15000);
+
+test.skipIf(process.platform !== "win32")("Windows-only guardian settles a deep run directory (non-Windows skips because the guardian requires PowerShell)", async () => {
+  const cacheRoot = await mkdtemp(path.join(tmpdir(), "uh-guardian-deep-cache-"));
+  const base = await mkdtemp(path.join(tmpdir(), "uh-guardian-deep-"));
+  const root = path.join(base, ...Array.from({ length: 10 }, (_, index) => `worker-project-${index.toString().padStart(2, "0")}-0123456789abcdef`));
+  const previousLocalAppData = process.env.LOCALAPPDATA;
+  process.env.LOCALAPPDATA = cacheRoot;
+  try {
+    const missionDirectory = path.join(root, ".harness", "missions", "one");
+    const directory = path.join(missionDirectory, "runs", "deep");
+    await mkdir(missionDirectory, { recursive: true });
+    await writeFile(path.join(missionDirectory, "mission.yaml"), "schema_version: uh.mission.v0\nid: one\n");
+    expect(directory.length).toBeGreaterThan(260);
+    const result = await runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'guardian-deep'}));"],
+      cwd: base,
+      artifacts: { directory, missionId: "one", runId: "deep", runtime: "fixture" },
+    });
+    expect(result.exitCode).toBe(0);
+    expect(result.stderr).not.toContain("UH Windows job failed");
+    const receipt = JSON.parse(await readFile(path.join(directory, "windows-job-result.json"), "utf8"));
+    expect(receipt.settled).toBe(true);
+    const control = JSON.parse(await readFile(path.join(directory, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ settlement_confirmed: true, guardian: { mode: "cache" } });
+    expect(control.guardian.path.length).toBeLessThan(260);
+  } finally {
+    if (previousLocalAppData === undefined) delete process.env.LOCALAPPDATA;
+    else process.env.LOCALAPPDATA = previousLocalAppData;
+    await rm(base, { recursive: true, force: true });
+    await rm(cacheRoot, { recursive: true, force: true });
+  }
+}, 15000);
+
+test.skipIf(process.platform !== "win32")("Windows-only guardian honors cancellation in a deep run directory (non-Windows skips because the guardian requires PowerShell)", async () => {
+  const cacheRoot = await mkdtemp(path.join(tmpdir(), "uh-guardian-stop-cache-"));
+  const base = await mkdtemp(path.join(tmpdir(), "uh-guardian-stop-"));
+  const root = path.join(base, ...Array.from({ length: 10 }, (_, index) => `worker-project-${index.toString().padStart(2, "0")}-0123456789abcdef`));
+  const previousLocalAppData = process.env.LOCALAPPDATA;
+  process.env.LOCALAPPDATA = cacheRoot;
+  const abort = new AbortController();
+  let running: Promise<RuntimeProcessOutput> | undefined;
+  try {
+    const missionDirectory = path.join(root, ".harness", "missions", "one");
+    const directory = path.join(missionDirectory, "runs", "deep-stop");
+    await mkdir(missionDirectory, { recursive: true });
+    await writeFile(path.join(missionDirectory, "mission.yaml"), "schema_version: uh.mission.v0\nid: one\n");
+    expect(directory.length).toBeGreaterThan(260);
+    running = runRuntimeProcess({
+      command: process.execPath,
+      args: ["-e", "console.log(JSON.stringify({type:'session',id:'guardian-stop'})); setInterval(()=>{},1000)"],
+      cwd: base,
+      cancellationSignal: abort.signal,
+      timeoutMs: 10000,
+      artifacts: { directory, missionId: "one", runId: "deep-stop", runtime: "fixture" },
+    });
+    await waitForFile(path.join(directory, "runtime.stdout.log"), text => text.includes("guardian-stop"));
+    const cancellation = await cancelLocalMissionRun(root, "one", "deep-stop");
+    const result = await running;
+    expect(cancellation).toEqual({ ok: true, status: "cancelled" });
+    expect(result.cancelled).toBe(true);
+    expect(result.settlementConfirmed).toBe(true);
+    expect(result.stderr).not.toContain("UH Windows job failed");
+    const receipt = JSON.parse(await readFile(path.join(directory, "windows-job-result.json"), "utf8"));
+    expect(receipt).toMatchObject({ exit_code: 130, settled: true });
+    const control = JSON.parse(await readFile(path.join(directory, "runtime-control.json"), "utf8"));
+    expect(control).toMatchObject({ status: "cancelled", settlement_confirmed: true, guardian: { mode: "cache" } });
+  } finally {
+    abort.abort();
+    if (running) await running;
+    if (previousLocalAppData === undefined) delete process.env.LOCALAPPDATA;
+    else process.env.LOCALAPPDATA = previousLocalAppData;
+    await rm(base, { recursive: true, force: true });
+    await rm(cacheRoot, { recursive: true, force: true });
+  }
+}, 20000);
+
diff --git a/tests/runtime-recovery.test.ts b/tests/runtime-recovery.test.ts
new file mode 100644
index 0000000..f33f25b
--- /dev/null
+++ b/tests/runtime-recovery.test.ts
@@ -0,0 +1,152 @@
+import { test, expect } from "vitest";
+import { mkdtemp, mkdir, writeFile, readFile, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { setTimeout as delay } from "node:timers/promises";
+import { parse, stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { runCommandCode } from "../src/adapters/command-code.js";
+import { runRuntimeProcess, type RuntimeProcessInput } from "../src/harness/runtime-process.js";
+import { prepareRuntimeResume, runWithRuntimeRecovery } from "../src/harness/runtime-recovery.js";
+
+/**
+ * Real children and filesystem visibility cannot be driven by a fake clock, so
+ * the tests wait for observable I/O state, but every supervision deadline is
+ * fired by advancing this clock — never by waiting out wall time.
+ */
+function manualClock() {
+  let current = Date.now();
+  const polls: Array<() => void> = [];
+  return {
+    now: () => current,
+    setInterval: (callback: () => void) => { polls.push(callback); return polls.length; },
+    clearInterval: () => {},
+    advance: (milliseconds: number) => { current += milliseconds; for (const poll of [...polls]) poll(); },
+  };
+}
+
+async function waitForFile(file: string, predicate: (text: string) => boolean) {
+  for (let i = 0; i < 100; i++) {
+    try { const text = await readFile(file, "utf8"); if (predicate(text)) return text; } catch { /* Not persisted yet. */ }
+    await delay(20);
+  }
+  throw new Error(`Expected persisted state at ${file}`);
+}
+
+function clockedRunner(clock: ReturnType<typeof manualClock>) {
+  return (input: RuntimeProcessInput) => runRuntimeProcess({ ...input, clock });
+}
+
+async function fixture() {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-native-recovery-"));
+  await initializeHarness(root);
+  await addAdapter(root, "command-code");
+  const manifestPath = path.join(root, ".harness", "adapters", "command-code.yaml");
+  const manifest = parse(await readFile(manifestPath, "utf8"));
+  manifest.config.cli_command = process.execPath;
+  manifest.config.runtime_config = { model: "fixture/model", permission_mode: "yolo", cli_args: [path.join(root, "fixture.cjs")],
+    limits: { startup_timeout_ms: 3000, stall_timeout_ms: 200, timeout_ms: 5000 } };
+  await writeFile(manifestPath, stringify(manifest));
+  const missionPath = path.join(root, ".harness", "missions", "one", "mission.yaml");
+  await mkdir(path.dirname(missionPath), { recursive: true });
+  await writeFile(missionPath, stringify({ schema_version: "uh.mission.v0", id: "one", title: "Offline recovery", workflow_profile: "research-docs" }));
+  await writeFile(path.join(root, "fixture.cjs"), `
+    const fs = require('node:fs');
+    console.log(JSON.stringify({type:'session',sessionId:'saved-session'}));
+    console.log(JSON.stringify({type:'event',event:{type:'model_request_start',model:'fixture/model'}}));
+    const resume = process.argv.indexOf('--resume');
+    if (resume >= 0) {
+      if (process.argv[resume + 1] !== 'saved-session' || fs.readFileSync('kept-output.txt','utf8') !== 'preserved') process.exit(9);
+      console.log(JSON.stringify({type:'event',event:{type:'model_request_start',model:'fixture/model'}}));
+      console.log(JSON.stringify({type:'result',subtype:'success',sessionId:'saved-session',stopReason:'end_turn',finalText:'Continued existing work'}));
+    } else {
+      fs.writeFileSync('kept-output.txt','preserved');
+      setInterval(() => {}, 1000);
+    }
+  `);
+  return { root, missionPath };
+}
+
+test("a stalled attempt settles before a distinct attempt resumes its saved session and outputs", async () => {
+  const { root, missionPath } = await fixture();
+  const clock = manualClock();
+  try {
+    const runDirectory = path.join(root, ".harness", "missions", "one", "runs");
+    const pending = runWithRuntimeRecovery({ root, missionId: "one", runtime: "command-code", runId: "original",
+      recovery: { max_resumes: 1, notes: "Continue from the saved output; do not redo the completed step." },
+      run: options => runCommandCode(root, missionPath, { ...options, collectDiff: async () => ({ patch: "" }), runner: clockedRunner(clock) }),
+    });
+    // The fixture's session and model_request_start are observed before their
+    // stdout is persisted, so once the log shows them the supervision clock is
+    // frozen exactly at that progress mark; advancing across the 200ms stall
+    // budget fires the stall deterministically, regardless of machine load.
+    await waitForFile(path.join(runDirectory, "original", "runtime.stdout.log"), text => text.includes("model_request_start"));
+    clock.advance(300);
+    const result = await pending;
+    expect(result.result.status).toBe("passed");
+    expect(result.runId).not.toBe("original");
+    const index = JSON.parse(await readFile(path.join(runDirectory, "index.json"), "utf8"));
+    expect(index.runs.map((run: { run_id: string; status: string; replay_of?: string }) => [run.run_id, run.status, run.replay_of]))
+      .toEqual([["original", "failed", undefined], [result.runId, "passed", "original"]]);
+    expect(await readFile(path.join(root, "kept-output.txt"), "utf8")).toBe("preserved");
+    const originalControlPath = path.join(runDirectory, "original", "runtime-control.json");
+    const control = JSON.parse(await readFile(originalControlPath, "utf8"));
+    expect(control).toMatchObject({ status: "failed", stop_code: "stall", session_id: "saved-session" });
+    // An actual policy stop must never acquire automatic resume authorization.
+    control.stop_code = "policy";
+    await writeFile(originalControlPath, JSON.stringify(control));
+    let admissions = 0;
+    await runWithRuntimeRecovery({ root, missionId: "one", runtime: "command-code", runId: "original",
+      recovery: { max_resumes: 2, notes: "Synthetic policy gate check" },
+      run: async () => { admissions++; return { runId: "original", result: { status: "failed" } }; },
+    });
+    expect(admissions).toBe(1);
+    await expect(prepareRuntimeResume(root, "one", "original", "command-code", "Synthetic policy gate check")).rejects.toThrow();
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 15000);
+test("a denial budget resumes with a source stop and combined recovery note", async () => {
+  const { root, missionPath } = await fixture();
+  try {
+    const manifestPath = path.join(root, ".harness", "adapters", "command-code.yaml");
+    const manifest = parse(await readFile(manifestPath, "utf8"));
+    manifest.config.runtime_config.limits.max_denials = 3;
+    const denialFixture = path.join(root, "denial-fixture.cjs");
+    await writeFile(denialFixture, `
+      const out = value => process.stdout.write(JSON.stringify(value) + '\\n');
+      out({type:'session', id:'saved-session'});
+      out({type:'model_request_start', model:'fixture/model'});
+      if (process.argv.includes('--resume')) {
+        out({type:'model_request_start', model:'fixture/model'});
+        out({type:'result', subtype:'success', sessionId:'saved-session', stopReason:'end_turn', finalText:'Continued'});
+      } else {
+        for (const target of ['out/a.txt', 'out/b.txt', 'out/c.txt']) {
+          const id = target;
+          out({type:'tool_queued', toolCallId:id, toolName:'write_file', input:{path:target}});
+          out({type:'tool_hooks', toolCallId:id, phase:'pre', outcome:{kind:'block', text:'writes are locked'}});
+          out({type:'tool_hook_blocked', toolCallId:id});
+        }
+        setInterval(() => {}, 1000);
+      }
+    `);
+    manifest.config.runtime_config.cli_args = [denialFixture];
+    await writeFile(manifestPath, stringify(manifest));
+    // The denial budget fires from observed events, never from time, and the
+    // frozen injected clock keeps both attempts immune to load-induced
+    // spurious stalls while they settle.
+    const clock = manualClock();
+    const result = await runWithRuntimeRecovery({ root, missionId: "one", runtime: "command-code", runId: "denial",
+      recovery: { max_resumes: 1, notes: "Continue from the saved output." },
+      run: options => runCommandCode(root, missionPath, { ...options, collectDiff: async () => ({ patch: "" }), runner: clockedRunner(clock) }),
+    });
+    expect(result.result.status).toBe("passed");
+    const recoveryPath = path.join(root, ".harness", "missions", "one", "runs", result.runId!, "runtime-recovery.json");
+    const recovery = JSON.parse(await readFile(recoveryPath, "utf8"));
+    expect(recovery).toMatchObject({
+      source_stop_code: "denial_budget",
+      source_stop_reason: expect.stringContaining("write_file out/c.txt"),
+      notes: expect.stringContaining("You were stopped: 3 hook-denied calls; last: write_file out/c.txt"),
+    });
+    expect(recovery.notes.match(/You were stopped:/g)).toHaveLength(1);
+  } finally { await rm(root, { recursive: true, force: true }); }
+}, 15000);
diff --git a/tests/runtime-requirements.test.ts b/tests/runtime-requirements.test.ts
index f8e3d36..1873516 100644
--- a/tests/runtime-requirements.test.ts
+++ b/tests/runtime-requirements.test.ts
@@ -75,12 +75,11 @@ describe("runtime requirements matching", () => {
     }
   });
 
-  test("blocks min_context_tokens above adapter limit", async () => {
-    const caps = getCapabilities("oh-my-pi");
+  test("blocks a context requirement when the selected runtime model limit is unknown", async () => {
     const root = await mkdtemp(join(tmpdir(), "uh-test-runtime-req-"));
     try {
       const missionPath = await writeMission(root, "m-context", {
-        min_context_tokens: caps.max_context_tokens + 1,
+        min_context_tokens: 1,
       });
       await expect(assertRuntimeRequirements(missionPath, "oh-my-pi")).rejects.toThrow(/min_context_tokens/);
     } finally {
diff --git a/tests/runtime-resources.test.ts b/tests/runtime-resources.test.ts
new file mode 100644
index 0000000..e82d13f
--- /dev/null
+++ b/tests/runtime-resources.test.ts
@@ -0,0 +1,75 @@
+import { expect, test } from "vitest";
+import { mapBounded, mapResourceWaves, workerConcurrency } from "../src/harness/runtime-resources.js";
+
+test("worker admission respects aggregate memory headroom and fails before an unenforceable launch", () => {
+  const limits = { max_parallel: 4, worker_memory_mb: 1024, reserve_memory_mb: 1024 };
+  expect(workerConcurrency(8, limits, 3 * 1024 ** 3)).toBe(2);
+  expect(() => workerConcurrency(8, limits, 1.5 * 1024 ** 3)).toThrow();
+});
+
+test("a failed worker stops queued admission but does not abandon an admitted sibling", async () => {
+  let release!: () => void;
+  const gate = new Promise<void>(resolve => { release = resolve; });
+  const admitted: number[] = [];
+  let settled = false;
+  const pending = mapBounded([1, 2, 3], 2, async item => {
+    admitted.push(item);
+    if (item === 1) throw new Error("fixture failure");
+    await gate;
+    return item;
+  });
+  void pending.then(() => { settled = true; }, () => { settled = true; });
+  await Promise.resolve();
+  expect(admitted).toEqual([1, 2]);
+  expect(settled).toBe(false);
+  release();
+  await expect(pending).rejects.toThrow();
+  expect(admitted).toEqual([1, 2]);
+});
+
+test("cost reservations admit only affordable waves and release completed reservations", async () => {
+  const admitted: number[] = [];
+  const blocked: number[] = [];
+  await mapResourceWaves([1, 2, 3, 4, 5], {
+    max_parallel: 2, max_cost_usd: 5, worker_cost_reservation_usd: 2,
+  }, async item => { admitted.push(item); return item; }, {
+    costOf: async () => 1,
+    blocked: async item => { blocked.push(item); return item; },
+  });
+  expect(admitted).toEqual([1, 2, 3, 4]);
+  expect(blocked).toEqual([5]);
+});
+
+test("unknown completed spend stops later waves after all admitted siblings settle", async () => {
+  const admitted: number[] = [];
+  let release!: () => void;
+  const gate = new Promise<void>(resolve => { release = resolve; });
+  let blocked = false;
+  const pending = mapResourceWaves([1, 2, 3], {
+    max_parallel: 2, max_cost_usd: 10, worker_cost_reservation_usd: 1,
+  }, async item => { admitted.push(item); if (item === 2) await gate; return item; }, {
+    costOf: async () => undefined,
+    blocked: async item => { blocked = true; return item; },
+  });
+  await Promise.resolve();
+  expect(admitted).toEqual([1, 2]);
+  expect(blocked).toBe(false);
+  release();
+  await pending;
+  expect(admitted).toEqual([1, 2]);
+  expect(blocked).toBe(true);
+});
+
+test("memory headroom is rechecked before the next wave", async () => {
+  let available = 3 * 1024 ** 3;
+  const admitted: number[] = [];
+  const blocked: number[] = [];
+  await mapResourceWaves([1, 2, 3], { max_parallel: 2, worker_memory_mb: 1024, reserve_memory_mb: 1024 },
+    async item => { admitted.push(item); available = 1024 ** 3; return item; }, {
+      availableBytes: () => available,
+      costOf: async () => { throw new Error("Cost must not be guessed when no cost policy is configured"); },
+      blocked: async item => { blocked.push(item); return item; },
+    });
+  expect(admitted).toEqual([1, 2]);
+  expect(blocked).toEqual([3]);
+});
diff --git a/tests/runtime-settlement.test.ts b/tests/runtime-settlement.test.ts
new file mode 100644
index 0000000..3a0c472
--- /dev/null
+++ b/tests/runtime-settlement.test.ts
@@ -0,0 +1,210 @@
+import { test, expect } from "vitest";
+import { mkdtemp, mkdir, readFile, writeFile, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { parse, stringify } from "yaml";
+import { cancelLocalMissionRun } from "../src/harness/mission-cancel.js";
+import { prepareRuntimeResume } from "../src/harness/runtime-recovery.js";
+import { reconcileNativeCapSettlement, reconcileRuntimeResultControl, reconcileRuntimeSettlement, settleNativeCap } from "../src/harness/runtime-settlement.js";
+
+async function fixture(confirmed: boolean) {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-reconcile-"));
+  const directory = path.join(root, ".harness", "missions", "one", "runs", "lost");
+  await mkdir(directory, { recursive: true });
+  const started = "2026-09-15T00:00:00.000Z";
+  await writeFile(path.join(directory, "runtime-control.json"), JSON.stringify({
+    schema_version: "uh.runtime-control.v0", mission_id: "one", run_id: "lost", runtime: "command-code",
+    controller_pid: 12345, started_at: started, heartbeat_at: started, session_id: "saved-session",
+    status: "failed", stop_code: "controller_lost", settlement_confirmed: confirmed, turns: 1, denials: 0, inflight_tools: 0,
+  }));
+  await writeFile(path.join(directory, "runtime-session.yaml"), stringify({ schema_version: "uh.runtime-session.v0", mission_id: "one", runtime: "command-code", status: "running" }));
+  await writeFile(path.join(directory, "runtime.stdout.log"), "preserved partial transcript\n");
+  await writeFile(path.join(directory, "runtime.stderr.log"), "");
+  await writeFile(path.join(directory, "prompt.md"), "Offline fixture contract");
+  await writeFile(path.join(directory, "..", "index.json"), JSON.stringify({ schema_version: "uh.runs-index.v0", runs: [{ run_id: "lost", runtime: "command-code", started_at: started, status: "running" }] }));
+  return { root, directory };
+}
+
+test("confirmed controller loss reconciles cancellation and permits saved-session recovery without inventing usage", async () => {
+  const { root, directory } = await fixture(true);
+  try {
+    expect(await cancelLocalMissionRun(root, "one", "lost")).toEqual({ ok: true, status: "failed" });
+    expect((await prepareRuntimeResume(root, "one", "lost", "command-code", "Continue preserved work")).sessionId).toBe("saved-session");
+    expect(JSON.parse(await readFile(path.join(directory, "..", "index.json"), "utf8")).runs[0].status).toBe("failed");
+    const result = parse(await readFile(path.join(directory, "runtime-result.yaml"), "utf8"));
+    expect(result.status).toBe("failed");
+    expect(result.usage).toBeUndefined();
+    expect(result.cost_usd).toBeUndefined();
+    expect(await readFile(path.join(directory, "runtime.stdout.log"), "utf8")).toBe("preserved partial transcript\n");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("unconfirmed process-tree termination cannot settle canonical running work", async () => {
+  const { root, directory } = await fixture(false);
+  try {
+    expect(await reconcileRuntimeSettlement(root, "one", "lost")).toBe(false);
+    await expect(cancelLocalMissionRun(root, "one", "lost")).rejects.toThrow();
+    expect(parse(await readFile(path.join(directory, "runtime-session.yaml"), "utf8")).status).toBe("running");
+    await expect(readFile(path.join(directory, "runtime-result.yaml"))).rejects.toMatchObject({ code: "ENOENT" });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+/* ------------------------- runtime-result / runtime-control consistency ------------------------- */
+
+const STARTED = "2026-09-22T00:00:00.000Z";
+
+/** A run directory holding a terminal control receipt and a written runtime result. */
+async function resultControlFixture(control: Record<string, unknown>, result: Record<string, unknown>) {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-settle-consistency-"));
+  const directory = path.join(root, ".harness", "missions", "one", "runs", "lost");
+  await mkdir(path.join(directory, "..", ".."), { recursive: true });
+  await mkdir(directory, { recursive: true });
+  await writeFile(path.join(directory, "runtime-control.json"), JSON.stringify(control));
+  await writeFile(path.join(directory, "runtime-result.yaml"), stringify(result));
+  return { root, directory };
+}
+
+function confirmedControl(status: string, extra: Record<string, unknown> = {}): Record<string, unknown> {
+  return {
+    schema_version: "uh.runtime-control.v0", mission_id: "one", run_id: "lost", runtime: "command-code",
+    controller_pid: 12345, started_at: STARTED, heartbeat_at: STARTED,
+    status, turns: 3, denials: 0, inflight_tools: 0, ...extra,
+  };
+}
+
+function resultDocument(status: string, exitCode: number, errors: string[]): Record<string, unknown> {
+  return {
+    schema_version: "uh.runtime-result.v0", mission_id: "one", runtime: "command-code",
+    status, started_at: STARTED, finished_at: STARTED, exit_code: exitCode,
+    prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+    errors,
+  };
+}
+
+test("a confirmed passed settlement is preferred over a failed result and a settlement_conflict record is written", async () => {
+  const { root, directory } = await resultControlFixture(
+    confirmedControl("passed", { settlement_confirmed: true }),
+    resultDocument("failed", 1, ["Diff capture failed: Command failed: git rev-parse --verify HEAD"]),
+  );
+  try {
+    expect(await reconcileRuntimeResultControl(root, "one", "lost")).toBe(true);
+    const result = parse(await readFile(path.join(directory, "runtime-result.yaml"), "utf8")) as {
+      status: string; exit_code: number; exit_code_ignored_reason?: string; errors: string[];
+    };
+    expect(result.status).toBe("passed");
+    expect(result.exit_code).toBe(1);
+    expect(result.exit_code_ignored_reason).toBe("runtime exited non-zero after completed native terminal event");
+    const conflict = result.errors.at(-1)!;
+    expect(conflict).toContain("settlement_conflict");
+    expect(conflict).toContain("runtime-result status=failed");
+    expect(conflict).toContain("runtime-control status=passed");
+    expect(conflict).toContain("settlement_confirmed=true");
+    // The mission-level mirror is refreshed alongside the per-run rewrite.
+    const mirror = parse(await readFile(path.join(root, ".harness", "missions", "one", "runtime-result.yaml"), "utf8")) as { status: string };
+    expect(mirror.status).toBe("passed");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("an unconfirmed control receipt records the conflict but never rewrites the result", async () => {
+  const { root, directory } = await resultControlFixture(
+    confirmedControl("failed"),
+    resultDocument("passed", 0, []),
+  );
+  try {
+    expect(await reconcileRuntimeResultControl(root, "one", "lost")).toBe(true);
+    const result = parse(await readFile(path.join(directory, "runtime-result.yaml"), "utf8")) as { status: string; errors: string[] };
+    expect(result.status).toBe("passed");
+    const conflict = result.errors.at(-1)!;
+    expect(conflict).toContain("settlement_conflict");
+    expect(conflict).toContain("runtime-result status=passed");
+    expect(conflict).toContain("runtime-control status=failed");
+    expect(conflict).toContain("settlement_confirmed=false");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("agreeing artifacts are left untouched and a blocked result agrees with a confirmed passed receipt", async () => {
+  const agreement = await resultControlFixture(
+    confirmedControl("passed", { settlement_confirmed: true }),
+    resultDocument("passed", 0, []),
+  );
+  try {
+    const before = await readFile(path.join(agreement.directory, "runtime-result.yaml"), "utf8");
+    expect(await reconcileRuntimeResultControl(agreement.root, "one", "lost")).toBe(false);
+    expect(await readFile(path.join(agreement.directory, "runtime-result.yaml"), "utf8")).toBe(before);
+  } finally { await rm(agreement.root, { recursive: true, force: true }); }
+
+  const blockedRefinement = await resultControlFixture(
+    confirmedControl("passed", { settlement_confirmed: true }),
+    resultDocument("blocked", 0, ["Hermes did not emit a uh.runtime-result.v0 block on stdout"]),
+  );
+  try {
+    expect(await reconcileRuntimeResultControl(blockedRefinement.root, "one", "lost")).toBe(false);
+  } finally { await rm(blockedRefinement.root, { recursive: true, force: true }); }
+});
+
+test("missing control or result evidence needs no reconciliation", async () => {
+  const missingResult = await resultControlFixture(
+    confirmedControl("passed", { settlement_confirmed: true }),
+    resultDocument("failed", 1, []),
+  );
+  try {
+    await rm(path.join(missingResult.directory, "runtime-result.yaml"));
+    expect(await reconcileRuntimeResultControl(missingResult.root, "one", "lost")).toBe(false);
+  } finally { await rm(missingResult.root, { recursive: true, force: true }); }
+
+  const missingControl = await resultControlFixture(
+    confirmedControl("passed", { settlement_confirmed: true }),
+    resultDocument("failed", 1, []),
+  );
+  try {
+    await rm(path.join(missingControl.directory, "runtime-control.json"));
+    expect(await reconcileRuntimeResultControl(missingControl.root, "one", "lost")).toBe(false);
+  } finally { await rm(missingControl.root, { recursive: true, force: true }); }
+});
+
+/* ------------------------------- native budget caps ------------------------------- */
+
+test("a native turn cap settles failed/turn_limit even when a final message was emitted", () => {
+  expect(settleNativeCap({ cap: "turn", reason: "max_turns", grace: false, deliverable: true, turns: 2 }))
+    .toEqual({ status: "failed", stopCode: "turn_limit", reason: "Native turn cap (max_turns) reached after 2 turns", graceExpectedEnd: false });
+  expect(settleNativeCap({ cap: "turn", reason: "max_turns", grace: false, deliverable: false }))
+    .toEqual({ status: "failed", stopCode: "turn_limit", reason: "Native turn cap (max_turns) reached", graceExpectedEnd: false });
+});
+
+test("a native time cap settles failed/timeout", () => {
+  expect(settleNativeCap({ cap: "time", reason: "max_time", grace: false, deliverable: true }))
+    .toEqual({ status: "failed", stopCode: "timeout", reason: "Native time cap (max_time) reached", graceExpectedEnd: false });
+  expect(settleNativeCap({ cap: "time", reason: "timeout", grace: false, deliverable: false }).stopCode).toBe("timeout");
+});
+
+test("a deadline grace attempt settles by its deliverable with stop code deadline", () => {
+  expect(settleNativeCap({ cap: "turn", reason: "max_turns", grace: true, deliverable: true, turns: 3 }))
+    .toEqual({ status: "passed", stopCode: "deadline", reason: "Native turn cap (max_turns) reached after 3 turns", graceExpectedEnd: true });
+  expect(settleNativeCap({ cap: "turn", reason: "max_turns", grace: true, deliverable: false, turns: 3 }))
+    .toMatchObject({ status: "failed", stopCode: "deadline", graceExpectedEnd: true });
+});
+
+test("a native-cap settlement rewrites the run control receipt with the settled status and stop code", async () => {
+  const { root, directory } = await resultControlFixture(
+    confirmedControl("failed", { stop_code: "turn_limit", stop_reason: "Native turn cap (max_turns) reached after 3 turns" }),
+    resultDocument("passed", 0, []),
+  );
+  try {
+    const settlement = settleNativeCap({ cap: "turn", reason: "max_turns", grace: true, deliverable: true, turns: 3 });
+    expect(await reconcileNativeCapSettlement(root, "one", "lost", settlement)).toBe(true);
+    const control = JSON.parse(await readFile(path.join(directory, "runtime-control.json"), "utf8")) as Record<string, unknown>;
+    expect(control).toMatchObject({ status: "passed", stop_code: "deadline", stop_reason: "Native turn cap (max_turns) reached after 3 turns" });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+test("a missing control receipt is left untouched by native-cap settlement", async () => {
+  const { root, directory } = await resultControlFixture(
+    confirmedControl("failed", { stop_code: "turn_limit" }),
+    resultDocument("failed", 1, []),
+  );
+  try {
+    await rm(path.join(directory, "runtime-control.json"));
+    expect(await reconcileNativeCapSettlement(root, "one", "lost",
+      settleNativeCap({ cap: "turn", reason: "max_turns", grace: true, deliverable: true }))).toBe(false);
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
diff --git a/tests/runtime-snapshot.test.ts b/tests/runtime-snapshot.test.ts
new file mode 100644
index 0000000..a30bfb9
--- /dev/null
+++ b/tests/runtime-snapshot.test.ts
@@ -0,0 +1,112 @@
+import { test, expect, beforeEach, afterEach } from "vitest";
+import { mkdtemp, mkdir, readFile, readdir, rm, stat, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { snapshotGuardHook } from "../src/harness/runtime-snapshot.js";
+
+let root: string;
+let sourceDir: string;
+let cacheRoot: string;
+
+const HOOK_RELATIVE = path.join("extensions", "tool-guard", "omp.js");
+const HOOK_DEPTH = HOOK_RELATIVE.split(path.sep).length;
+
+async function writeFixture(): Promise<void> {
+  const harness = path.join(root, "dist", "harness");
+  await mkdir(harness, { recursive: true });
+  await writeFile(path.join(sourceDir, "omp.js"), 'import { guard } from "../../harness/lib.js";\nconsole.log(guard);\n');
+  await writeFile(path.join(harness, "lib.js"), 'import { extra } from "./extra.js";\nexport const guard = extra;\n');
+  await writeFile(path.join(harness, "extra.js"), "export const extra = 1;\n");
+}
+
+/** The published snapshot root, one level above the hook's layout path. */
+function snapshotDirOf(hook: string): string {
+  let directory = hook;
+  for (let depth = 0; depth < HOOK_DEPTH; depth += 1) directory = path.dirname(directory);
+  return directory;
+}
+
+beforeEach(async () => {
+  root = await mkdtemp(path.join(tmpdir(), "uh-runtime-snapshot-"));
+  sourceDir = path.join(root, "dist", "extensions", "tool-guard");
+  cacheRoot = path.join(root, "cache");
+  await mkdir(sourceDir, { recursive: true });
+  await writeFixture();
+});
+
+afterEach(async () => {
+  await rm(root, { recursive: true, force: true });
+});
+
+test("publishes the hook inside the cache root and preserves the relative layout", async () => {
+  const hook = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+
+  expect(path.isAbsolute(hook)).toBe(true);
+  expect(path.relative(cacheRoot, hook)).not.toMatch(/^\.\./);
+  expect(path.relative(snapshotDirOf(hook), hook)).toBe(HOOK_RELATIVE);
+  expect((await stat(hook)).isFile()).toBe(true);
+
+  const snapshotDir = snapshotDirOf(hook);
+  expect(await readFile(path.join(snapshotDir, "harness", "lib.js"), "utf8")).toContain("extra");
+  expect(await readFile(path.join(snapshotDir, "harness", "extra.js"), "utf8")).toContain("extra = 1");
+});
+
+test("identical content reuses the same directory without rewriting it", async () => {
+  const first = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+  const before = await stat(first);
+  const second = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+
+  expect(second).toBe(first);
+  expect(await readdir(cacheRoot)).toEqual([path.basename(snapshotDirOf(first))]);
+  expect((await stat(second)).mtimeMs).toBe(before.mtimeMs);
+});
+
+test("changed content yields a new directory and leaves the old snapshot intact", async () => {
+  const first = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+  await writeFile(path.join(root, "dist", "harness", "extra.js"), "export const extra = 2;\n");
+  const second = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+
+  expect(second).not.toBe(first);
+  expect((await stat(first)).isFile()).toBe(true);
+  expect(await readFile(path.join(snapshotDirOf(first), "harness", "extra.js"), "utf8")).toContain("extra = 1");
+  expect(await readdir(cacheRoot)).toHaveLength(2);
+});
+
+test("two concurrent publications resolve to the same path", async () => {
+  const [left, right] = await Promise.all([
+    snapshotGuardHook("omp.js", { sourceDir, cacheRoot }),
+    snapshotGuardHook("omp.js", { sourceDir, cacheRoot }),
+  ]);
+
+  expect(left).toBe(right);
+  expect(await readdir(cacheRoot)).toHaveLength(1);
+});
+
+test("refuses a tampered snapshot instead of running with it", async () => {
+  const hook = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+  await writeFile(hook, "process.exit(0);\n");
+
+  await expect(snapshotGuardHook("omp.js", { sourceDir, cacheRoot })).rejects.toThrow(/corrupt|sha-256/i);
+});
+
+test("refuses a snapshot with an unexpected extra file", async () => {
+  const hook = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+  await writeFile(path.join(snapshotDirOf(hook), "intruder.js"), "malicious\n");
+
+  await expect(snapshotGuardHook("omp.js", { sourceDir, cacheRoot })).rejects.toThrow(/corrupt|unexpected/i);
+});
+
+test("publishes imported npm packages under node_modules so bare specifiers resolve", async () => {
+  const dependency = path.join(root, "node_modules", "fake-dep");
+  await mkdir(dependency, { recursive: true });
+  await writeFile(path.join(dependency, "package.json"), JSON.stringify({ name: "fake-dep", version: "1.0.0", main: "index.js" }));
+  await writeFile(path.join(dependency, "index.js"), "module.exports = 1;\n");
+  await writeFile(path.join(sourceDir, "omp.js"), 'import { guard } from "../../harness/lib.js";\nimport "fake-dep";\n');
+
+  const hook = await snapshotGuardHook("omp.js", { sourceDir, cacheRoot });
+  expect(await readFile(path.join(snapshotDirOf(hook), "node_modules", "fake-dep", "index.js"), "utf8")).toContain("module.exports");
+});
+
+test("fails closed when the source hook is missing", async () => {
+  await expect(snapshotGuardHook("absent.js", { sourceDir, cacheRoot })).rejects.toThrow(/not found/i);
+});
diff --git a/tests/runtime-supervision.test.ts b/tests/runtime-supervision.test.ts
new file mode 100644
index 0000000..911885c
--- /dev/null
+++ b/tests/runtime-supervision.test.ts
@@ -0,0 +1,441 @@
+import { mkdtempSync, readFileSync, rmSync, writeFileSync } from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { RuntimeSupervision, nativeRuntimeCompleted, runtimeRouteMismatch, runtimeTerminalFailure, sameRouteIdentifier } from "../src/harness/runtime-supervision.js";
+
+const FIXTURE_DIR = fileURLToPath(new URL("./fixtures/runtime-events", import.meta.url));
+
+/** Parse a native event excerpt: one JSON event per line. */
+function fixture(name: string): unknown[] {
+  return readFileSync(path.join(FIXTURE_DIR, name), "utf-8")
+    .split("\n")
+    .map(line => line.trim())
+    .filter(Boolean)
+    .map(line => JSON.parse(line) as unknown);
+}
+
+describe("runtime supervision", () => {
+  test("a blocked tool leaves in-flight state so subsequent stalls remain detectable", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 50, max_denials: 3 }, 0);
+    run.observe({ type: "tool_execution_start", toolCallId: "call" }, 1);
+    expect(run.check(100)).toBeUndefined();
+    run.observe({ type: "tool_hook_blocked", toolCallId: "call" }, 101);
+    expect(run.check(152)).toMatch(/stalled/);
+    expect(run.denials).toBe(1);
+  });
+  test("counts observed denials, not proposed tools or quoted denial text", () => {
+    const run = new RuntimeSupervision({ max_denials: 2 }, 0);
+    run.observe({ type: "tool_queued", toolCallId: "one", input: { content: "tool_hook_blocked" } }, 1);
+    expect(run.observe({ event: { type: "tool_hook_blocked", toolCallId: "one" } }, 2)).toBeUndefined();
+    expect(run.observe({ event: { type: "tool_hook_blocked", toolCallId: "two" } }, 3)).toMatch(/hook-denied calls/);
+  });
+  test("in-flight work cannot evade the wall-time budget", () => {
+    const run = new RuntimeSupervision({ timeout_ms: 50, stall_timeout_ms: 10 }, 0);
+    run.observe({ type: "tool_running", toolCallId: "call" }, 1);
+    expect(run.check(49)).toBeUndefined();
+    expect(run.check(50)).toMatch(/wall-time/);
+  });
+  test("streaming malformed tool arguments does not reset the progress clock", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 20 }, 0);
+    run.observe({ type: "message_update", delta: "more broken arguments" }, 19);
+    expect(run.check(20)).toMatch(/stalled/);
+  });
+  test("varied reasoning refreshes the stall clock", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 100, max_thinking_ms: 1_000 }, 0);
+    const varied = Array.from({ length: 5_000 }, (_, index) => String.fromCharCode(32 + index % 95)).join("");
+    run.observe({ type: "thinking_start" }, 0);
+    for (const [index, now] of [50, 100, 150, 200].entries()) {
+      run.observe({ type: "message_update", assistantMessageEvent: {
+        type: "thinking_delta", delta: varied.slice(index * 1_250, (index + 1) * 1_250),
+      } }, now);
+    }
+    expect(run.check(299)).toBeUndefined();
+  });
+  test("configured thinking budget stops a live reasoning stretch", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 100, max_thinking_ms: 350 }, 0);
+    run.observe({ type: "thinking_start" }, 0);
+    for (const now of [50, 100, 150, 200, 250, 300]) {
+      run.observe({ type: "thinking_delta", delta: "varied reasoning" }, now);
+    }
+    expect(run.check(349)).toBeUndefined();
+    expect(run.check(350)).toBe("Reasoning exceeded max_thinking_ms without a tool call or message");
+    expect(run.stopCode).toBe("stall");
+  });
+  test("thinking uses four times the stall timeout by default", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 100 }, 0);
+    run.observe({ type: "thinking_start" }, 0);
+    for (const now of [90, 180, 270]) run.observe({ type: "thinking_delta", delta: "varied reasoning" }, now);
+    expect(run.check(350)).toBeUndefined();
+    expect(run.check(400)).toBe("Reasoning exceeded max_thinking_ms without a tool call or message");
+  });
+  test("repeated reasoning text still stalls at the ordinary stall timeout", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 100 }, 0);
+    run.observe({ type: "thinking_start" }, 0);
+    run.observe({ type: "thinking_delta", delta: "R".repeat(4_096) }, 10);
+    expect(run.check(99)).toBeUndefined();
+    expect(run.check(100)).toBe("Runtime stalled without an in-flight tool");
+  });
+  test("text deltas alone do not count as progress", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 20 }, 0);
+    run.observe({ type: "text_delta", delta: "varied output" }, 19);
+    expect(run.check(20)).toBe("Runtime stalled without an in-flight tool");
+  });
+  test("a tool call resets the reasoning stretch budget", () => {
+    const run = new RuntimeSupervision({ stall_timeout_ms: 1_000, max_thinking_ms: 300 }, 0);
+    run.observe({ type: "thinking_start" }, 0);
+    run.observe({ type: "tool_execution_start", toolCallId: "call" }, 100);
+    run.observe({ type: "tool_execution_end", toolCallId: "call" }, 110);
+    run.observe({ type: "thinking_delta", delta: "varied reasoning" }, 150);
+    expect(run.check(300)).toBeUndefined();
+    expect(run.check(449)).toBeUndefined();
+    expect(run.check(450)).toBe("Reasoning exceeded max_thinking_ms without a tool call or message");
+  });
+  test("a session banner is not readiness", () => {
+    const run = new RuntimeSupervision({ startup_timeout_ms: 20 }, 0);
+    run.observe({ type: "session", id: "saved-session" }, 1);
+    expect(run.sessionId).toBe("saved-session");
+    expect(run.check(20)).toMatch(/readiness/);
+  });
+  test("turn budget permits terminal completion but prevents another turn", () => {
+    const run = new RuntimeSupervision({ max_turns: 1 }, 0);
+    run.observe({ type: "turn_start" }, 1);
+    run.observe({ type: "turn_end" }, 2);
+    expect(run.observe({ type: "agent_end", messages: [] }, 3)).toBeUndefined();
+    expect(run.observe({ type: "turn_start" }, 4)).toMatch(/Turn limit/);
+  });
+  test("a native max_turns terminal stop settles as turn_limit naming the cap and the turn count", () => {
+    const run = new RuntimeSupervision({ max_turns: 200 }, 0);
+    run.observe({ type: "model_request_start", model: "assigned" }, 1);
+    expect(run.observe({ type: "result", subtype: "error_max_turns", stopReason: "max_turns", num_turns: 100 }, 2))
+      .toBe("Native turn cap (max_turns) reached after 100 turns");
+    expect(run.stopCode).toBe("turn_limit");
+  });
+  test("a native turn cap is recognized without a num_turns counter by counting turn_end events", () => {
+    const run = new RuntimeSupervision({}, 0);
+    run.observe({ type: "turn_end" }, 1);
+    run.observe({ type: "turn_end" }, 2);
+    expect(run.observe({ type: "result", stopReason: "max_turns" }, 3))
+      .toBe("Native turn cap (max_turns) reached after 2 turns");
+    expect(run.stopCode).toBe("turn_limit");
+  });
+  test("an unrecognized native terminal stop settles as runtime_error with the reason copied", () => {
+    const run = new RuntimeSupervision({}, 0);
+    expect(run.observe({ type: "result", finalText: "partial", stopReason: "aborted", num_turns: 4 }, 1))
+      .toBe("Runtime reported failure (aborted)");
+    expect(run.stopCode).toBe("runtime_error");
+  });
+  test("a native time cap settles as timeout", () => {
+    const run = new RuntimeSupervision({}, 0);
+    run.observe({ type: "result", stopReason: "max_time" }, 1);
+    expect(run.stopCode).toBe("timeout");
+  });
+  test("a native turn cap settles turn_limit after a final assistant message and the sentinel", () => {
+    // A final message is not a natural end: the runtime's own cap still ends
+    // the attempt, so the run can never settle as completed.
+    for (const limits of [{ max_turns: 2 }, {}]) {
+      const run = new RuntimeSupervision(limits, 0);
+      let stopped: string | undefined;
+      for (const [index, value] of fixture("command-code-native-turn-cap.ndjson").entries()) {
+        stopped = run.observe(value, index + 1);
+      }
+      expect(stopped).toBe("Native turn cap (max_turns) reached after 2 turns");
+      expect(run.stopCode).toBe("turn_limit");
+      expect(run.terminal).toBe(true);
+      expect(nativeRuntimeCompleted({
+        nativeTerminal: run.terminal, nativeTerminalFailure: run.terminalFailure,
+        supervisionStopCode: run.stopCode, finalMessage: "completed just before the cap", errors: [],
+      })).toBe(false);
+    }
+  });
+  test("a native turn cap named only by an error subtype still settles turn_limit", () => {
+    const run = new RuntimeSupervision({}, 0);
+    expect(run.observe({ type: "result", subtype: "error_max_turns", num_turns: 3 }, 1))
+      .toBe("Native turn cap (max_turns) reached after 3 turns");
+    expect(run.stopCode).toBe("turn_limit");
+  });
+  test("a deadline grace attempt settles its expected native cap as deadline, never turn_limit", () => {
+    const run = new RuntimeSupervision({ max_turns: 3 }, 0, undefined, undefined, undefined, undefined,
+      { grace_turns: 2, grace_timeout_ms: 300_000, grace: true });
+    let stopped: string | undefined;
+    for (const [index, value] of fixture("command-code-native-turn-cap.ndjson").entries()) {
+      stopped = run.observe(value, index + 1);
+    }
+    expect(stopped).toBeUndefined();
+    expect(run.failure).toBeUndefined();
+    expect(run.stopCode).toBe("deadline");
+    expect(run.terminal).toBe(true);
+    expect(run.terminalFailure).toBeUndefined();
+  });
+  test("repeated failure accounting follows tool identity and structured outcome", () => {
+    const run = new RuntimeSupervision({ max_repeated_failures: 2 }, 0);
+    for (const id of ["one", "two"]) {
+      run.observe({ type: "tool_execution_start", toolCallId: id, args: { command: "build" } }, 1);
+      run.observe({ type: "tool_execution_end", toolCallId: id, isError: true }, 2);
+    }
+    expect(run.check(3)).toMatch(/same command failed/);
+    expect(run.inflight.size).toBe(0);
+  });
+  test("nested native terminal failures override apparent wrapper completion", () => {
+    expect(runtimeTerminalFailure({ type: "run_end", result: { stopReason: "max_turns" } })).toMatch(/failure/);
+    expect(runtimeTerminalFailure({ type: "agent_end", messages: [{ stopReason: "error" }] })).toMatch(/failure/);
+    expect(runtimeTerminalFailure({ type: "result", status: "completed" })).toBeUndefined();
+  });
+  test("agent_end ignores prior toolResult errors after a completed stop", () => {
+    expect(runtimeTerminalFailure({
+      type: "agent_end",
+      messages: [
+        { role: "toolResult", isError: true, content: [{ type: "text", text: "CONTRACT: denied" }] },
+        { role: "assistant", stopReason: "stop" },
+      ],
+    })).toBeUndefined();
+  });
+  test("stops a native provider mismatch but ignores route-looking tool data", () => {
+    const run = new RuntimeSupervision({}, 0, { provider: "assigned", model: "model-one" });
+    run.observe({ type: "tool_completed", result: { model: "unassigned", provider: "other" } }, 1);
+    expect(run.check(2)).toBeUndefined();
+    run.observe({ type: "message_end", message: { role: "assistant", provider: "assigned", model: "model-one" } }, 3);
+    expect(run.check(4)).toBeUndefined();
+    run.observe({ type: "model_request_start", provider: "other", model: "model-one" }, 5);
+    expect(run.stopCode).toBe("route_mismatch");
+    expect(run.check(6)).toBeDefined();
+  });
+  test("does not treat configured metadata as observed route attestation", () => {
+    const run = new RuntimeSupervision({}, 0, { model: "assigned" });
+    run.observe({ type: "session", model: "assigned" }, 1);
+    run.observe({ type: "result", finalText: "done" }, 2);
+    run.settle();
+    expect(run.stopCode).toBe("route_unverified");
+  });
+  test("denial budget names the denied tool, target, and hook text", () => {
+    const run = new RuntimeSupervision({ max_denials: 3 }, 0);
+    for (const [id, target] of [["one", "out/a.txt"], ["two", "out/b.txt"], ["three", "out/c.txt"]]) {
+      run.observe({ type: "tool_queued", toolCallId: id, toolName: "write_file", input: { path: target } }, 1);
+      run.observe({ type: "tool_hooks", toolCallId: id, phase: "pre", outcome: { kind: "block", text: "writes are locked" } }, 2);
+      run.observe({ type: "tool_hook_blocked", toolCallId: id }, 3);
+    }
+    expect(run.stopCode).toBe("denial_budget");
+    expect(run.failure).toBe("3 hook-denied calls; last: write_file out/c.txt: writes are locked");
+  });
+
+  test("protected path mutations stop before execution while reads and output writes continue", () => {
+    const protectedFile = new RuntimeSupervision({}, 0);
+    protectedFile.observe({ type: "tool_queued", toolCallId: "file", toolName: "write_file", input: { path: ".harness/adapters/oh-my-pi.yaml" } }, 1);
+    expect(protectedFile.stopCode).toBe("policy");
+    expect(protectedFile.failure).toContain(".harness/adapters/oh-my-pi.yaml");
+
+    const protectedShell = new RuntimeSupervision({}, 0);
+    protectedShell.observe({ type: "tool_queued", toolCallId: "shell", toolName: "bash", input: { command: "echo x > .git/config" } }, 1);
+    expect(protectedShell.stopCode).toBe("policy");
+    const commandCodeProtectedShell = new RuntimeSupervision({}, 0, undefined, "C:\\worker", "guard");
+    commandCodeProtectedShell.observe({ type: "tool_queued", toolCallId: "command-code-shell", toolName: "shell_command",
+      input: { command: "rm .harness/temporary.txt" } }, 1);
+    expect(commandCodeProtectedShell.stopCode).toBe("policy");
+    expect(commandCodeProtectedShell.failure).toContain(".harness/temporary.txt");
+
+
+    const protectedRead = new RuntimeSupervision({}, 0);
+    protectedRead.observe({ type: "tool_queued", toolCallId: "read", toolName: "bash", input: { command: "cat .git/config" } }, 1);
+    expect(protectedRead.stopCode).toBeUndefined();
+
+    const output = new RuntimeSupervision({}, 0);
+    output.observe({ type: "tool_queued", toolCallId: "output", toolName: "write_file", input: { path: "out/x.txt" } }, 1);
+    expect(output.stopCode).toBeUndefined();
+  });
+  test("absolute protected paths are scoped to the working directory", () => {
+    const workspace = path.resolve("supervision-workspace");
+    const inside = new RuntimeSupervision({}, 0, undefined, workspace);
+    inside.observe({ type: "tool_queued", toolCallId: "inside", toolName: "write_file", input: {
+      path: path.join(workspace, ".harness", "adapters", "oh-my-pi.yaml"),
+    } }, 1);
+    expect(inside.stopCode).toBe("policy");
+
+    const outside = new RuntimeSupervision({}, 0, undefined, workspace);
+    outside.observe({ type: "tool_queued", toolCallId: "outside", toolName: "write_file", input: {
+      path: path.resolve("outside-workspace", ".harness", "adapter.yaml"),
+    } }, 1);
+    expect(outside.stopCode).toBeUndefined();
+  });
+  test("protected path mutations stop on oh-my-pi tool_execution_start", () => {
+    const run = new RuntimeSupervision({}, 0);
+    run.observe({ type: "tool_execution_start", toolCallId: "call", toolName: "write", args: { path: ".harness/adapters/oh-my-pi.yaml" } }, 1);
+    expect(run.stopCode).toBe("policy");
+    expect(run.failure).toContain(".harness/adapters/oh-my-pi.yaml");
+  });
+
+  test.each([
+    ["clean native completion", { nativeTerminal: true, finalMessage: "DONE" }, true],
+    ["missing terminal", { nativeTerminal: false, finalMessage: "DONE" }, false],
+    ["terminal failure", { nativeTerminal: true, nativeTerminalFailure: "failure", finalMessage: "DONE" }, false],
+    ["supervisor stop", { nativeTerminal: true, supervisionStopCode: "policy" as const, finalMessage: "DONE" }, false],
+  ])("native completion settlement: %s", (_name, facts, expected) => {
+    expect(nativeRuntimeCompleted(facts)).toBe(expected);
+  });
+  test("freezes denial count and reason after denial budget stop while retaining terminal facts", () => {
+    const run = new RuntimeSupervision({ max_denials: 3 }, 0);
+    for (const id of ["one", "two", "three"]) run.observe({ type: "tool_hook_blocked", toolCallId: id }, 1);
+    const reason = run.failure;
+    run.observe({ type: "tool_hook_blocked", toolCallId: "four" }, 2);
+    run.observe({ type: "agent_end", messages: [{ role: "assistant", stopReason: "stop" }] }, 3);
+    expect(run.denials).toBe(3);
+    expect(run.failure).toBe(reason);
+    expect(run.stopCode).toBe("denial_budget");
+    expect(run.terminal).toBe(true);
+  });
+
+  test("freezes repeated-failure and turn counters after their stop decisions", () => {
+    const failures = new RuntimeSupervision({ max_repeated_failures: 2 }, 0);
+    for (const id of ["one", "two"]) {
+      failures.observe({ type: "tool_execution_start", toolCallId: id, args: { command: "build" } }, 1);
+      failures.observe({ type: "tool_execution_end", toolCallId: id, isError: true }, 2);
+    }
+    const failureReason = failures.failure;
+    failures.observe({ type: "tool_execution_start", toolCallId: "three", args: { command: "build" } }, 3);
+    failures.observe({ type: "tool_execution_end", toolCallId: "three", isError: true }, 4);
+    expect(failures.failure).toBe(failureReason);
+    expect(failures.failures.get("build")).toBe(2);
+
+    const turns = new RuntimeSupervision({ max_turns: 1 }, 0);
+    turns.observe({ type: "turn_start" }, 1);
+    turns.observe({ type: "turn_end" }, 2);
+    turns.observe({ type: "turn_start" }, 3);
+    const turnReason = turns.failure;
+    turns.observe({ type: "turn_end" }, 4);
+    expect(turns.turns).toBe(1);
+
+    expect(turns.failure).toBe(turnReason);
+  });
+  test("Command Code shell failures parsed from result text trip the repeated-failure guard", () => {
+    const run = new RuntimeSupervision({ max_repeated_failures: 3 }, 0);
+    let completions = 0;
+    let stoppedOn: number | undefined;
+    for (const [index, value] of fixture("command-code-repeated-shell-failure.ndjson").entries()) {
+      if ((value as { type?: unknown }).type === "tool_completed") completions += 1;
+      const stopped = run.observe(value, index + 1);
+      if (stopped && stoppedOn === undefined) stoppedOn = completions;
+    }
+    expect(stoppedOn).toBe(3);
+    expect(run.stopCode).toBe("repeated_failure");
+    expect(run.failure).toBe('The same command failed 3 times (exit 1): node -e "process.exit(1)"');
+    expect(run.failures.get('node -e "process.exit(1)"')).toBe(3);
+    expect(run.inflight.size).toBe(0);
+  });
+  test("Command Code stdout that merely mentions an exit code never counts as a failure", () => {
+    const run = new RuntimeSupervision({ max_repeated_failures: 1 }, 0);
+    for (const [index, value] of fixture("command-code-shell-exit-code-in-stdout.ndjson").entries()) {
+      run.observe(value, index + 1);
+    }
+    expect(run.failure).toBeUndefined();
+    expect(run.failures.size).toBe(0);
+  });
+  test("oh-my-pi error outcomes still count through their structured fields", () => {
+    const run = new RuntimeSupervision({ max_repeated_failures: 3 }, 0);
+    for (const [index, value] of fixture("oh-my-pi-healthy.ndjson").entries()) {
+      run.observe(value, index + 1);
+    }
+    expect(run.failure).toBeUndefined();
+    expect(run.failures.get("gitnexus_impact x")).toBe(1);
+    expect(run.failures.get("bunx x")).toBe(1);
+  });
+  test("guard tamper in the guard log is a non-resumable policy stop", () => {
+    const directory = mkdtempSync(path.join(os.tmpdir(), "uh-guard-tamper-"));
+    const logPath = path.join(directory, "tool-guard.log");
+    writeFileSync(logPath, `${JSON.stringify({ class: "guard_tamper", tool: "shell_command" })}\n`);
+    try {
+      const run = new RuntimeSupervision({}, 0, undefined, "C:\\worker", "guard", logPath);
+      run.observe({ type: "tool_execution_start", toolCallId: "tamper", toolName: "shell_command", args: { command: "echo x" } }, 1);
+      run.observe({ type: "tool_execution_end", toolCallId: "tamper", result: { exitCode: 0 } }, 2);
+      expect(run.stopCode).toBe("policy");
+      expect(run.failure).toBe("Guard tamper attempted");
+    } finally {
+      rmSync(directory, { recursive: true, force: true });
+    }
+  });
+
+  test("native guard tamper denials stop before denial-budget accounting", () => {
+    const run = new RuntimeSupervision({ max_denials: 1 }, 0);
+    run.observe({ type: "tool_denied", toolCallId: "tamper", class: "guard_tamper" }, 1);
+    expect(run.stopCode).toBe("policy");
+    expect(run.failure).toBe("Guard tamper attempted");
+    expect(run.denials).toBe(0);
+  });
+  test("guard permission fails closed when completed tool has no guard-log evidence", () => {
+    const run = new RuntimeSupervision({}, 0, undefined, "C:\\worker", "guard", "T:/missing-tool-guard.log");
+    run.observe({ type: "tool_execution_start", toolCallId: "call", toolName: "shell_command", args: { command: "echo x" } }, 1);
+    run.observe({ type: "tool_execution_end", toolCallId: "call", result: { exitCode: 0 } }, 2);
+    expect(run.stopCode).toBe("policy");
+    expect(run.failure).toBe("Guard hook did not run; refusing to continue with permissions enabled");
+    expect(run.guardArmed).toBe(false);
+    run.observe({ type: "agent_end", messages: [{ role: "assistant", stopReason: "stop" }] }, 3);
+    expect(run.terminal).toBe(true);
+  });
+  test("guard permission distinguishes a hook that ran but could not log", () => {
+    const run = new RuntimeSupervision({}, 0, undefined, "C:\\worker", "guard", "T:/missing-tool-guard.log");
+    run.observe({ type: "tool_hooks", toolCallId: "call", phase: "pre", outcome: { kind: "allow" } }, 1);
+    run.observe({ type: "tool_execution_start", toolCallId: "call", toolName: "shell_command", args: { command: "echo x" } }, 2);
+    run.observe({ type: "tool_execution_end", toolCallId: "call", result: { exitCode: 0 } }, 3);
+    expect(run.stopCode).toBe("policy");
+    expect(run.failure).toBe("Guard hook ran but could not log; refusing to continue with permissions enabled");
+    expect(run.guardArmed).toBe(false);
+  });
+
+  test("guard permission does not arm from pre-hook event alone", () => {
+    const run = new RuntimeSupervision({}, 0, undefined, "C:\\worker", "guard");
+    run.observe({ type: "tool_hooks", toolCallId: "call", phase: "pre", outcome: { kind: "allow" } }, 1);
+    run.observe({ type: "tool_execution_start", toolCallId: "call", toolName: "shell_command", args: { command: "echo x" } }, 2);
+    expect(run.stopCode).toBeUndefined();
+    expect(run.guardArmed).toBeUndefined();
+  });
+  test("deadline wall-time stops at grace boundary with remaining budget", () => {
+    const run = new RuntimeSupervision({ timeout_ms: 10_000 }, 1_000, undefined, undefined, undefined, undefined,
+      { grace_turns: 2, grace_timeout_ms: 3_000 });
+    expect(run.check(8_000)).toContain("3000ms remaining for grace");
+    expect(run.stopCode).toBe("deadline");
+  });
+
+  test("deadline turn budget stops before the grace turns", () => {
+    const run = new RuntimeSupervision({ max_turns: 4 }, 0, undefined, undefined, undefined, undefined,
+      { grace_turns: 2, grace_timeout_ms: 3_000 });
+    run.observe({ type: "turn_end" }, 1);
+    run.observe({ type: "turn_end" }, 2);
+    expect(run.observe({ type: "turn_start" }, 3)).toContain("2 turns remaining for grace");
+    expect(run.stopCode).toBe("deadline");
+  });
+});
+
+describe("route identifier comparison", () => {
+  test("letter case and surrounding whitespace do not distinguish a route", () => {
+    expect(sameRouteIdentifier("qwen/qwen3.8-flash", "Qwen/Qwen3.8-Flash")).toBe(true);
+    expect(sameRouteIdentifier("  Qwen  ", "qwen")).toBe(true);
+    expect(sameRouteIdentifier("gpt-5.6-luna", "GPT-5.6-Luna")).toBe(true);
+  });
+
+  test("a provider prefix on exactly one side is dropped for comparison", () => {
+    expect(sameRouteIdentifier("qwen/qwen3.8-flash", "Qwen3.8-Flash")).toBe(true);
+    expect(sameRouteIdentifier("Qwen3.8-Flash", "qwen/qwen3.8-flash")).toBe(true);
+  });
+
+  test("a different model still mismatches", () => {
+    expect(sameRouteIdentifier("qwen/qwen3.8-flash", "qwen/qwen3.8-max")).toBe(false);
+    expect(sameRouteIdentifier("gpt-5.6-luna", "gpt-5.6")).toBe(false);
+    expect(sameRouteIdentifier("google-antigravity/gemini-3.8-flash", "openai-codex/gemini-3.8-flash")).toBe(false);
+  });
+
+  test("runtimeRouteMismatch compares providers and models case-insensitively", () => {
+    expect(runtimeRouteMismatch({ provider: "Qwen", model: "Qwen/Qwen3.8-Flash" }, { provider: "qwen", model: "qwen/qwen3.8-flash" })).toBe(false);
+    expect(runtimeRouteMismatch({ provider: "qwen", model: "qwen/qwen3.8-max" }, { provider: "qwen", model: "qwen/qwen3.8-flash" })).toBe(true);
+    expect(runtimeRouteMismatch({ provider: "other", model: "qwen/qwen3.8-flash" }, { provider: "qwen", model: "qwen/qwen3.8-flash" })).toBe(true);
+  });
+
+  test("a model_request_start reporting a different-case route does not stop the run", () => {
+    const run = new RuntimeSupervision({}, 0, { provider: "qwen", model: "qwen/qwen3.8-flash" });
+    expect(run.observe({ type: "model_request_start", provider: "Qwen", model: "Qwen/Qwen3.8-Flash" }, 1)).toBeUndefined();
+    expect(run.stopCode).toBeUndefined();
+  });
+
+  test("a model_request_start on another model still stops the run with route_mismatch", () => {
+    const run = new RuntimeSupervision({}, 0, { provider: "qwen", model: "qwen/qwen3.8-flash" });
+    run.observe({ type: "model_request_start", provider: "Qwen", model: "Qwen/Qwen3.8-Max" }, 1);
+    expect(run.stopCode).toBe("route_mismatch");
+  });
+});
diff --git a/tests/sandbox-backends.test.ts b/tests/sandbox-backends.test.ts
new file mode 100644
index 0000000..9731ecb
--- /dev/null
+++ b/tests/sandbox-backends.test.ts
@@ -0,0 +1,168 @@
+/**
+ * Directory-backend materialization tests.
+ *
+ * `git clone --local` hard-links the object store to keep the clone cheap, which
+ * only works when the sandbox shares a filesystem with the repository. For a
+ * linked worktree whose common git directory lives on another drive, or a
+ * network share, git fails with "failed to create link ... Improper link". The
+ * backend must drop the partial target directory and retry EXACTLY ONCE with
+ * `--no-hardlinks`; every other clone failure is surfaced as-is.
+ *
+ * The failure paths drive an injected git runner (the seam added to
+ * `DirectoryBackend`); the happy path drives real `git` inside a throwaway
+ * repository, never the repo under test.
+ */
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { mkdir, mkdtemp, readFile, realpath, rm, stat, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { DirectoryBackend, type GitRunner } from "../src/harness/sandbox-backends.js";
+
+const execFileP = promisify(execFile);
+
+let ROOT: string;
+
+async function exists(target: string): Promise<boolean> {
+  try {
+    await stat(target);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+async function initGitRepo(root: string): Promise<void> {
+  await mkdir(root, { recursive: true });
+  await execFileP("git", ["-C", root, "init", "-q", "-b", "main"]);
+  await execFileP("git", ["-C", root, "config", "user.email", "test@example.com"]);
+  await execFileP("git", ["-C", root, "config", "user.name", "Test"]);
+  await execFileP("git", ["-C", root, "config", "commit.gpgsign", "false"]);
+  await execFileP("git", ["-C", root, "config", "core.autocrlf", "false"]);
+  await writeFile(join(root, "README.md"), "# Test\n", "utf-8");
+  await execFileP("git", ["-C", root, "add", "README.md"]);
+  await execFileP("git", ["-C", root, "commit", "-q", "-m", "init"]);
+}
+
+function cloneCalls(calls: string[][]): string[][] {
+  return calls.filter((args) => args[0] === "clone");
+}
+
+beforeEach(async () => {
+  ROOT = await realpath(await mkdtemp(join(tmpdir(), "uh-sandbox-backends-")));
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+describe("directory backend clone fallback", () => {
+  test("a hardlink failure removes the partial target and retries exactly once with --no-hardlinks", async () => {
+    const worktreePath = join(ROOT, "sandboxes", "alpha", "worktree");
+    const calls: string[][] = [];
+    let partialPresentAtRetry: boolean | undefined;
+
+    const runner: GitRunner = async (_cwd, args) => {
+      calls.push(args);
+      if (args.includes("--local")) {
+        // git leaves the half-created target directory behind on this failure.
+        await mkdir(join(worktreePath, "objects"), { recursive: true });
+        throw new Error(
+          `git ${args.join(" ")} failed: fatal: failed to create link 'objects/pack/tmp_pack': Improper link`,
+        );
+      }
+      partialPresentAtRetry = await exists(worktreePath);
+      return { stdout: "", stderr: "" };
+    };
+
+    const result = await new DirectoryBackend(runner).materialize({
+      root: ROOT,
+      sandboxId: "alpha",
+      worktreePath,
+      baseRef: "HEAD",
+    });
+
+    expect(result).toEqual({ branch: "sandbox/alpha", base_ref: "HEAD" });
+    expect(cloneCalls(calls)).toEqual([
+      ["clone", "--local", "--quiet", "--", ROOT, worktreePath],
+      ["clone", "--no-hardlinks", "--quiet", "--", ROOT, worktreePath],
+    ]);
+    // The retry starts from a clean slate, not on top of the partial clone.
+    expect(partialPresentAtRetry).toBe(false);
+  });
+
+  test("a non-hardlink clone failure is not retried", async () => {
+    const worktreePath = join(ROOT, "sandboxes", "beta", "worktree");
+    const calls: string[][] = [];
+
+    const runner: GitRunner = async (_cwd, args) => {
+      calls.push(args);
+      throw new Error(
+        `git ${args.join(" ")} failed: fatal: repository '${ROOT}' does not exist`,
+      );
+    };
+
+    await expect(
+      new DirectoryBackend(runner).materialize({
+        root: ROOT,
+        sandboxId: "beta",
+        worktreePath,
+        baseRef: "HEAD",
+      }),
+    ).rejects.toThrow(/does not exist/);
+
+    expect(cloneCalls(calls)).toHaveLength(1);
+    expect(calls.some((args) => args.includes("--no-hardlinks"))).toBe(false);
+  });
+
+  test("the --no-hardlinks retry is not retried again", async () => {
+    const worktreePath = join(ROOT, "sandboxes", "gamma", "worktree");
+    const calls: string[][] = [];
+
+    const runner: GitRunner = async (_cwd, args) => {
+      calls.push(args);
+      if (args.includes("--local")) {
+        throw new Error(
+          `git ${args.join(" ")} failed: fatal: failed to create link 'objects/pack': Improper link`,
+        );
+      }
+      throw new Error(`git ${args.join(" ")} failed: fatal: could not create work tree dir`);
+    };
+
+    await expect(
+      new DirectoryBackend(runner).materialize({
+        root: ROOT,
+        sandboxId: "gamma",
+        worktreePath,
+        baseRef: "HEAD",
+      }),
+    ).rejects.toThrow(/could not create work tree dir/);
+
+    const clones = cloneCalls(calls);
+    expect(clones).toHaveLength(2);
+    expect(clones[1]).toContain("--no-hardlinks");
+  });
+
+  test("a real clone of a temporary repository still succeeds", async () => {
+    const repo = join(ROOT, "repo");
+    await initGitRepo(repo);
+    const sandboxDir = join(ROOT, "sandboxes", "real");
+    const worktreePath = join(sandboxDir, "worktree");
+    await mkdir(sandboxDir, { recursive: true });
+
+    const result = await new DirectoryBackend().materialize({
+      root: repo,
+      sandboxId: "real",
+      worktreePath,
+      baseRef: "HEAD",
+    });
+
+    expect(result).toEqual({ branch: "sandbox/real", base_ref: "HEAD" });
+    // Self-contained clone: its own .git, the committed tree, its own branch.
+    await expect(stat(join(worktreePath, ".git"))).resolves.toBeTruthy();
+    expect(await readFile(join(worktreePath, "README.md"), "utf-8")).toMatch(/^# Test\r?\n$/);
+    const { stdout } = await execFileP("git", ["-C", worktreePath, "branch", "--show-current"]);
+    expect(stdout.trim()).toBe("sandbox/real");
+  });
+});
diff --git a/tests/sandbox.test.ts b/tests/sandbox.test.ts
index c65cd03..a25de97 100644
--- a/tests/sandbox.test.ts
+++ b/tests/sandbox.test.ts
@@ -2,6 +2,7 @@ import { describe, expect, test } from "vitest";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
 import {
+  mkdir,
   mkdtemp,
   readFile,
   realpath,
@@ -9,9 +10,9 @@ import {
   stat,
   writeFile,
 } from "node:fs/promises";
-import { join } from "node:path";
+import { join, normalize } from "node:path";
 import { tmpdir } from "node:os";
-import { parse } from "yaml";
+import { parse, stringify } from "yaml";
 import { initializeHarness } from "../src/harness/init.js";
 import { getSandboxBackend, listSandboxBackends, runOpenSandboxCommand } from "../src/harness/sandbox-backends.js";
 import {
@@ -24,10 +25,9 @@ import {
 
 let TEST_ROOT: string;
 const execFileP = promisify(execFile);
-const CLI = join(process.cwd(), "node_modules", ".bin", "tsx");
 
 async function runUh(args: string[]) {
-  return execFileP(CLI, ["src/cli.ts", ...args], { cwd: process.cwd() });
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], { cwd: process.cwd() });
 }
 
 async function runUhFailure(args: string[]) {
@@ -71,7 +71,7 @@ async function listWorktrees(root: string): Promise<string[]> {
   return stdout
     .split("\n")
     .filter((line) => line.startsWith("worktree "))
-    .map((line) => line.slice("worktree ".length));
+    .map((line) => normalize(line.slice("worktree ".length).trim()));
 }
 
 async function listBranches(root: string): Promise<string[]> {
@@ -312,7 +312,7 @@ describe("sandbox module", () => {
   test("createSandbox seeds the bound mission directory into the worktree (UH-29)", async () => {
     // Pre-create an uncommitted mission directory on the host.
     const missionDir = join(TEST_ROOT, ".harness", "missions", "smoke");
-    await execFileP("mkdir", ["-p", missionDir]);
+    await mkdir(missionDir, { recursive: true });
     await writeFile(
       join(missionDir, "mission.yaml"),
       "schema_version: uh.mission.v0\nid: smoke\nname: Smoke\nworkflow_profile: research-docs\n",
@@ -371,6 +371,79 @@ describe("sandbox module", () => {
   });
 });
 
+describe("sandbox index resilience", () => {
+  const indexPath = () => join(TEST_ROOT, ".harness", "sandboxes", "index.yaml");
+
+  test("treats a missing index file and directory as an empty registry (fresh clone)", async () => {
+    // A fresh clone may carry none of the sandboxes runtime state.
+    await rm(join(TEST_ROOT, ".harness", "sandboxes"), { recursive: true, force: true });
+
+    expect(await listSandboxes(TEST_ROOT)).toEqual([]);
+    await expect(getSandboxStatus(TEST_ROOT, "ghost")).rejects.toThrow(/Sandbox not found: ghost/);
+    await expect(discardSandbox(TEST_ROOT, "ghost")).rejects.toThrow(/Sandbox not found: ghost/);
+
+    const record = await createSandbox(TEST_ROOT, { id: "fresh", missionId: "demo" });
+    expect(record).toMatchObject({ id: "fresh", branch: "sandbox/fresh" });
+
+    // `create` wrote a new valid index on demand, with the canonical schema.
+    const indexDoc = parse(await readFile(indexPath(), "utf-8")) as {
+      schema_version: string;
+      sandboxes: Array<{ id: string; mission_id: string }>;
+    };
+    expect(indexDoc.schema_version).toBe("uh.sandboxes-index.v0");
+    expect(indexDoc.sandboxes).toMatchObject([{ id: "fresh", mission_id: "demo" }]);
+
+    const info = await getSandboxStatus(TEST_ROOT, "fresh");
+    expect(info).toMatchObject({ id: "fresh", branch: "sandbox/fresh", dirty: false });
+
+    const discarded = await discardSandbox(TEST_ROOT, "fresh");
+    expect(discarded).toMatchObject({ id: "fresh", branch: "sandbox/fresh" });
+
+    const after = parse(await readFile(indexPath(), "utf-8")) as { sandboxes: unknown[] };
+    expect(after.sandboxes).toEqual([]);
+    expect(await listSandboxes(TEST_ROOT)).toEqual([]);
+  });
+
+  test("a missing index file alone is enough for list, status and discard", async () => {
+    await rm(indexPath(), { force: true });
+    // The sandboxes directory survives; only the runtime index file is gone.
+    await expect(stat(join(TEST_ROOT, ".harness", "sandboxes"))).resolves.toBeTruthy();
+
+    expect(await listSandboxes(TEST_ROOT)).toEqual([]);
+    await expect(getSandboxStatus(TEST_ROOT, "ghost")).rejects.toThrow(/Sandbox not found: ghost/);
+    await expect(discardSandbox(TEST_ROOT, "ghost")).rejects.toThrow(/Sandbox not found: ghost/);
+    await expect(stat(indexPath())).rejects.toThrow();
+  });
+
+  test("refuses an invalid index and leaves it byte-identical", async () => {
+    await writeFile(indexPath(), "schema_version: uh.sandboxes-index.v0\nsandboxes: not-a-list\n", "utf-8");
+    const before = await readFile(indexPath());
+
+    await expect(listSandboxes(TEST_ROOT)).rejects.toThrow(/Sandboxes index is invalid/);
+    await expect(getSandboxStatus(TEST_ROOT, "any")).rejects.toThrow(/Sandboxes index is invalid/);
+    await expect(discardSandbox(TEST_ROOT, "any")).rejects.toThrow(/Sandboxes index is invalid/);
+    await expect(
+      createSandbox(TEST_ROOT, { id: "any", missionId: "demo" }),
+    ).rejects.toThrow(/Sandboxes index is invalid/);
+
+    // Never overwritten: byte-identical, and the refused create left no partial state.
+    expect((await readFile(indexPath())).equals(before)).toBe(true);
+    await expect(stat(join(TEST_ROOT, ".harness", "sandboxes", "any"))).rejects.toThrow();
+  });
+
+  test("refuses an index with invalid YAML and leaves it byte-identical", async () => {
+    await writeFile(indexPath(), "sandboxes: [\n", "utf-8");
+    const before = await readFile(indexPath());
+
+    await expect(listSandboxes(TEST_ROOT)).rejects.toThrow(/invalid YAML/);
+    await expect(
+      createSandbox(TEST_ROOT, { id: "any", missionId: "demo" }),
+    ).rejects.toThrow(/invalid YAML/);
+
+    expect((await readFile(indexPath())).equals(before)).toBe(true);
+  });
+});
+
 describe("uh sandbox CLI", () => {
   test("create + list + status + discard end-to-end", async () => {
     const createOut = await runUh([
@@ -607,8 +680,8 @@ describe("container backend (#155 OpenSandbox)", () => {
 
   test("OpenSandbox templates spawn in the requested sandbox cwd (#157)", async () => {
     process.env.UH_OPENSANDBOX_ENABLED = "1";
-    // Template ignores {command} via the shell `:` no-op so we only observe the spawn cwd.
-    process.env.UH_OPENSANDBOX_EXEC_COMMAND = "pwd; : {command}";
+    await writeFile(join(TEST_ROOT, "cwd-proof.txt"), TEST_ROOT, "utf8");
+    process.env.UH_OPENSANDBOX_EXEC_COMMAND = "cat cwd-proof.txt; : {command}";
     try {
       const observed = await runOpenSandboxCommand(TEST_ROOT, "noop", 5_000);
       expect(observed.exitCode).toBe(0);
@@ -668,3 +741,122 @@ describe("container backend (#155 OpenSandbox)", () => {
     }
   });
 });
+
+async function writeRoutingMission(root: string, id: string): Promise<string> {
+  const missionDir = join(root, ".harness", "missions", id);
+  await mkdir(missionDir, { recursive: true });
+  const missionPath = join(missionDir, "mission.yaml");
+  await writeFile(
+    missionPath,
+    stringify({
+      schema_version: "uh.mission.v0",
+      id,
+      title: `Routing mission ${id}`,
+      objective: "Exercise mission run sandbox routing",
+      workflow_profile: "spec-first-feature",
+    }),
+    "utf-8",
+  );
+  return missionPath;
+}
+
+function settlementLine(stdout: string): {
+  mission_id: string;
+  run_id: string;
+  runtime: string;
+  status: string;
+  exit_code: number;
+  run_dir: string;
+} {
+  const lines = stdout.trim().split(/\r?\n/);
+  const last = lines[lines.length - 1];
+  expect(last).toMatch(/^UH_RESULT /);
+  return JSON.parse(last.slice("UH_RESULT ".length));
+}
+
+describe("mission run sandbox routing", () => {
+  test("refuses a no-flag run in the project root when the mission has no bound sandbox", async () => {
+    const missionPath = await writeRoutingMission(TEST_ROOT, "sr-unbound");
+
+    const refusal = await runUhFailure([
+      "mission", "run", missionPath,
+      "--runtime", "hermes", "--force", "--root", TEST_ROOT,
+    ]);
+
+    expect(refusal.code).toBe(2);
+    expect(refusal.stderr).toContain(
+      '[BLOCKED] mission sr-unbound has no bound sandbox; create one with "uh sandbox create <sandbox-id> --mission sr-unbound" or pass --no-sandbox to run in the project root',
+    );
+    // Refused before the runtime was reached, so nothing else was reported.
+    expect(refusal.stdout).not.toContain("Running mission:");
+    expect(refusal.stdout).not.toContain("Adapter manifest not found");
+
+    const payload = settlementLine(refusal.stdout);
+    expect(payload).toMatchObject({
+      mission_id: "sr-unbound",
+      runtime: "hermes",
+      status: "blocked",
+      exit_code: 2,
+    });
+    expect(payload.run_id).toBeTruthy();
+    expect(payload.run_dir).toBe(`.harness/missions/sr-unbound/runs/${payload.run_id}`);
+
+    // The refusal created no run directory: the project root stays untouched.
+    await expect(stat(join(TEST_ROOT, ".harness", "missions", "sr-unbound", "runs"))).rejects.toThrow();
+  });
+
+  test("--no-sandbox keeps today's root execution and says so", async () => {
+    const missionPath = await writeRoutingMission(TEST_ROOT, "sr-explicit");
+
+    const result = await runUhFailure([
+      "mission", "run", missionPath,
+      "--runtime", "hermes", "--force", "--no-sandbox", "--root", TEST_ROOT,
+    ]);
+
+    expect(result.stdout).toContain("Running mission:");
+    expect(result.stdout).toContain("Sandbox: none (project root, --no-sandbox)");
+    expect(`${result.stdout}${result.stderr}`).not.toContain("has no bound sandbox");
+    // Reached the adapter dispatch (no hermes manifest in this root) rather
+    // than being refused by routing — and no model is ever invoked.
+    expect(`${result.stdout}${result.stderr}`).toContain("Adapter manifest not found");
+  });
+
+  test("dry-run reports the routing decision and never blocks on a missing binding", async () => {
+    const missionPath = await writeRoutingMission(TEST_ROOT, "sr-dry");
+
+    const unbound = await runUhFailure([
+      "mission", "dry-run", missionPath,
+      "--runtime", "hermes", "--force", "--root", TEST_ROOT,
+    ]);
+    expect(unbound.stdout).toContain("Sandbox: none (project root)");
+    expect(`${unbound.stdout}${unbound.stderr}`).not.toContain("has no bound sandbox");
+    expect(unbound.stderr).not.toContain("[BLOCKED]");
+
+    const opted = await runUhFailure([
+      "mission", "dry-run", missionPath,
+      "--runtime", "hermes", "--force", "--no-sandbox", "--root", TEST_ROOT,
+    ]);
+    expect(opted.stdout).toContain("Sandbox: none (project root, --no-sandbox)");
+  });
+
+  test("a bound sandbox still routes the run and the dry-run into the worktree", async () => {
+    const missionPath = await writeRoutingMission(TEST_ROOT, "sr-bound");
+    const record = await createSandbox(TEST_ROOT, { id: "sr-sbx", missionId: "sr-bound" });
+    const worktreeAbs = join(TEST_ROOT, record.path);
+
+    const dryRun = await runUhFailure([
+      "mission", "dry-run", missionPath,
+      "--runtime", "hermes", "--force", "--root", TEST_ROOT,
+    ]);
+    expect(dryRun.stdout).toContain(`Sandbox: sr-sbx (${worktreeAbs})`);
+
+    const run = await runUhFailure([
+      "mission", "run", missionPath,
+      "--runtime", "hermes", "--force", "--root", TEST_ROOT,
+    ]);
+    expect(run.stdout).toContain(`Sandbox: sr-sbx (${worktreeAbs})`);
+    expect(`${run.stdout}${run.stderr}`).not.toContain("has no bound sandbox");
+    // The adapter lookup happened inside the sandbox worktree, not the root.
+    expect(`${run.stdout}${run.stderr}`).toContain(join("sr-sbx", "worktree"));
+  });
+});
diff --git a/tests/session-templates.test.ts b/tests/session-templates.test.ts
new file mode 100644
index 0000000..c09ef89
--- /dev/null
+++ b/tests/session-templates.test.ts
@@ -0,0 +1,782 @@
+import { describe, expect, test, vi } from "vitest";
+import path from "node:path";
+import { mkdtemp, mkdir, writeFile, rm, readFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { parse as parseYaml } from "yaml";
+import {
+  SessionTemplateSchema,
+  validateSessionTemplate,
+  type SessionTemplate,
+} from "../src/schema/session-template.js";
+import {
+  loadSessionTemplates,
+  getSessionTemplate,
+  applySessionTemplate,
+  describeAppliedTemplate,
+} from "../src/harness/session-templates.js";
+import { validateMission, type MissionDocument } from "../src/schema/mission.js";
+
+const BASE_VALID_TEMPLATE = {
+  schema_version: "uh.session-template.v0",
+  id: "test-balanced",
+  title: "Test Balanced Template",
+  tier: "balanced",
+  containment: "standard",
+  adapter: "hermes",
+  runtime_config_overrides: {
+    model: "<provider/model>",
+    thinking: "low",
+  },
+  limits: {
+    max_turns: 15,
+    timeout_ms: 300000,
+  },
+  recovery: {
+    max_resumes: 1,
+    notes: "Single retry allowed",
+  },
+  guard: {
+    write_roots: ["src"],
+    deny_network_clients: true,
+  },
+  attempts: 1,
+  notes: "Test template notes",
+} as const;
+
+const BASE_MISSION: MissionDocument = validateMission({
+  schema_version: "uh.mission.v0",
+  id: "test-mission",
+  title: "Test Mission",
+  workflow_profile: "spec-first-feature",
+});
+
+describe("SessionTemplateSchema strictness", () => {
+  test("accepts a fully specified valid template", () => {
+    const tpl = validateSessionTemplate(BASE_VALID_TEMPLATE);
+    expect(tpl.id).toBe("test-balanced");
+    expect(tpl.tier).toBe("balanced");
+    expect(tpl.containment).toBe("standard");
+    expect(tpl.attempts).toBe(1);
+  });
+
+  test("rejects unknown extra keys at top level", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        unknown_key: "not-allowed",
+      }),
+    ).toThrow();
+  });
+
+  test("rejects invalid schema_version", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        schema_version: "uh.session-template.v1",
+      }),
+    ).toThrow();
+  });
+
+  test("validates safe identifier for id", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: "../unsafe",
+      }),
+    ).toThrow(/id/i);
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: "",
+      }),
+    ).toThrow(/id/i);
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: ".",
+      }),
+    ).toThrow();
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: "..",
+      }),
+    ).toThrow();
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: "id with spaces",
+      }),
+    ).toThrow();
+
+    expect(
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        id: "valid-id_123.test",
+      }).id,
+    ).toBe("valid-id_123.test");
+  });
+
+  test("rejects invalid tier", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        tier: "ultra-cheap",
+      }),
+    ).toThrow();
+  });
+
+  test("defaults containment to standard when omitted", () => {
+    const { containment, ...withoutContainment } = BASE_VALID_TEMPLATE;
+    const parsed = validateSessionTemplate(withoutContainment);
+    expect(parsed.containment).toBe("standard");
+  });
+
+  test("rejects invalid containment value", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        containment: "loose",
+      }),
+    ).toThrow();
+  });
+
+  test("rejects invalid adapter id", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        adapter: "non-existent-adapter",
+      }),
+    ).toThrow();
+  });
+
+  test("defaults attempts to 1 when omitted", () => {
+    const { attempts, ...withoutAttempts } = BASE_VALID_TEMPLATE;
+    const parsed = validateSessionTemplate(withoutAttempts);
+    expect(parsed.attempts).toBe(1);
+  });
+
+  test("rejects attempts outside range 1..8 or non-integers", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        attempts: 0,
+      }),
+    ).toThrow();
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        attempts: 9,
+      }),
+    ).toThrow();
+
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        attempts: 2.5,
+      }),
+    ).toThrow();
+  });
+
+  test("rejects memory_mb in limits (governed by team resources instead)", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        limits: {
+          max_turns: 10,
+          memory_mb: 2048,
+        },
+      }),
+    ).toThrow();
+  });
+
+  test("rejects unrecognized keys inside limits", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        limits: {
+          max_turns: 10,
+          unknown_limit: 100,
+        },
+      }),
+    ).toThrow();
+  });
+
+  test("rejects unrecognized keys inside guard", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        guard: {
+          write_roots: ["src"],
+          unknown_guard_field: true,
+        },
+      }),
+    ).toThrow();
+  });
+
+  test("rejects unrecognized keys inside recovery", () => {
+    expect(() =>
+      validateSessionTemplate({
+        ...BASE_VALID_TEMPLATE,
+        recovery: {
+          max_resumes: 1,
+          notes: "ok",
+          unknown_recovery_field: 42,
+        },
+      }),
+    ).toThrow();
+  });
+});
+
+describe("loadSessionTemplates & getSessionTemplate", () => {
+  let tmpDir: string;
+
+  beforeEach(async () => {
+    tmpDir = await mkdtemp(path.join(tmpdir(), "uh-templates-test-"));
+  });
+
+  afterEach(async () => {
+    await rm(tmpDir, { recursive: true, force: true });
+  });
+
+  test("loads valid templates sorted by id, skipping invalid files without failing", async () => {
+    const templatesDir = path.join(tmpDir, ".harness", "templates");
+    await mkdir(templatesDir, { recursive: true });
+
+    // Valid template 1: id 'z-last'
+    await writeFile(
+      path.join(templatesDir, "z-last.yaml"),
+      `
+schema_version: uh.session-template.v0
+id: z-last
+title: Last Template
+tier: low-cost
+adapter: codex
+runtime_config_overrides:
+  model: "<provider/model>"
+`,
+      "utf-8",
+    );
+
+    // Valid template 2: id 'a-first'
+    await writeFile(
+      path.join(templatesDir, "a-first.yaml"),
+      `
+schema_version: uh.session-template.v0
+id: a-first
+title: First Template
+tier: exhaustive
+adapter: hermes
+attempts: 3
+runtime_config_overrides:
+  model: "<provider/model>"
+`,
+      "utf-8",
+    );
+
+    // Invalid template 3: bad schema (unrecognized root key + bad tier)
+    await writeFile(
+      path.join(templatesDir, "bad-schema.yaml"),
+      `
+schema_version: uh.session-template.v0
+id: bad-schema
+title: Bad Template
+tier: super-tier
+extra_forbidden_key: true
+`,
+      "utf-8",
+    );
+
+    // Invalid template 4: syntax error in YAML
+    await writeFile(
+      path.join(templatesDir, "syntax-error.yaml"),
+      `: not valid yaml: [}`,
+      "utf-8",
+    );
+
+    const warnSpy = vi.spyOn(console, "warn").mockImplementation(() => {});
+    const invalidPaths: string[] = [];
+
+    const loaded = await loadSessionTemplates(tmpDir, {
+      onInvalid: (badPath) => invalidPaths.push(badPath),
+    });
+
+    warnSpy.mockRestore();
+
+    expect(loaded).toHaveLength(2);
+    expect(loaded[0].id).toBe("a-first");
+    expect(loaded[1].id).toBe("z-last");
+
+    // Both bad files were reported
+    expect(invalidPaths.some((p) => p.includes("bad-schema.yaml"))).toBe(true);
+    expect(invalidPaths.some((p) => p.includes("syntax-error.yaml"))).toBe(true);
+  });
+
+  test("returns empty array when .harness/templates does not exist", async () => {
+    const loaded = await loadSessionTemplates(tmpDir);
+    expect(loaded).toEqual([]);
+  });
+
+  test("getSessionTemplate retrieves a template by id", async () => {
+    const templatesDir = path.join(tmpDir, ".harness", "templates");
+    await mkdir(templatesDir, { recursive: true });
+
+    await writeFile(
+      path.join(templatesDir, "balanced.yaml"),
+      `
+schema_version: uh.session-template.v0
+id: balanced
+title: Balanced Execution
+tier: balanced
+adapter: oh-my-pi
+runtime_config_overrides:
+  model: "<provider/model>"
+`,
+      "utf-8",
+    );
+
+    const template = await getSessionTemplate(tmpDir, "balanced");
+    expect(template.id).toBe("balanced");
+    expect(template.adapter).toBe("oh-my-pi");
+  });
+
+  test("getSessionTemplate throws on non-existent template", async () => {
+    await expect(getSessionTemplate(tmpDir, "missing-template")).rejects.toThrow(
+      /Session template not found/i,
+    );
+  });
+
+  test("getSessionTemplate throws on unsafe id", async () => {
+    await expect(getSessionTemplate(tmpDir, "../outside")).rejects.toThrow(
+      /unsafe|invalid/i,
+    );
+  });
+});
+
+describe("applySessionTemplate precedence", () => {
+  const template: SessionTemplate = {
+    schema_version: "uh.session-template.v0",
+    id: "tpl-default",
+    title: "Template Default",
+    tier: "balanced",
+    containment: "standard",
+    adapter: "hermes",
+    runtime_config_overrides: {
+      model: "tpl-model",
+      thinking: "low",
+      temperature: 0.2,
+    },
+    limits: {
+      max_turns: 10,
+      timeout_ms: 60000,
+      stall_timeout_ms: 15000,
+    },
+    recovery: {
+      max_resumes: 2,
+      notes: "Template recovery notes",
+    },
+    guard: {
+      write_roots: ["tpl-root"],
+      deny_git_mutations: true,
+      deny_network_clients: true,
+      allow_native_subagents: false,
+    },
+    attempts: 2,
+    notes: "Template notes",
+  };
+
+  test("merges runtime_config_overrides key-by-key, mission values win", () => {
+    const mission = {
+      ...BASE_MISSION,
+      runtime_config_overrides: {
+        model: "mission-custom-model",
+        extra_flag: true,
+      },
+    };
+
+    const applied = applySessionTemplate(mission, template);
+    expect(applied.runtime_config_overrides).toEqual({
+      model: "mission-custom-model", // mission overrides template
+      thinking: "low",               // preserved from template
+      temperature: 0.2,              // preserved from template
+      extra_flag: true,              // mission extra key preserved
+    });
+  });
+
+  test("merges limits key-by-key, mission values win", () => {
+    const mission = {
+      ...BASE_MISSION,
+      limits: {
+        max_turns: 25,
+      },
+    };
+
+    const applied = applySessionTemplate(mission, template);
+    expect(applied.limits).toEqual({
+      max_turns: 25,                // mission overrides template
+      timeout_ms: 60000,            // preserved from template
+      stall_timeout_ms: 15000,      // preserved from template
+    });
+  });
+
+  test("merges recovery key-by-key, mission values win", () => {
+    const mission = {
+      ...BASE_MISSION,
+      recovery: {
+        max_resumes: 5,
+        notes: "Mission recovery notes",
+      },
+    };
+
+    const applied = applySessionTemplate(mission, template);
+    expect(applied.recovery).toEqual({
+      max_resumes: 5,               // mission overrides template
+      notes: "Mission recovery notes", // mission overrides template
+    });
+  });
+
+  test("adapter precedence: mission adapter wins when explicitly provided, else template adapter", () => {
+    const missionWithoutAdapter = { ...BASE_MISSION };
+    const applied1 = applySessionTemplate(missionWithoutAdapter, template);
+    expect(applied1.adapter).toBe("hermes");
+
+    const missionWithAdapter = { ...BASE_MISSION, adapter: "codex" as const };
+    const applied2 = applySessionTemplate(missionWithAdapter, template);
+    expect(applied2.adapter).toBe("codex");
+  });
+
+  test("attempts precedence: mission attempts win when explicitly provided, else template attempts", () => {
+    const missionWithoutAttempts = { ...BASE_MISSION };
+    const applied1 = applySessionTemplate(missionWithoutAttempts, template);
+    expect(applied1.attempts).toBe(2);
+
+    const missionWithAttempts = { ...BASE_MISSION, attempts: 4 };
+    const applied2 = applySessionTemplate(missionWithAttempts, template);
+    expect(applied2.attempts).toBe(4);
+  });
+
+  test("does not mutate original mission object", () => {
+    const originalMission = {
+      ...BASE_MISSION,
+      runtime_config_overrides: { model: "m" },
+    };
+    const copyBefore = JSON.parse(JSON.stringify(originalMission));
+    applySessionTemplate(originalMission, template);
+    expect(originalMission).toEqual(copyBefore);
+  });
+});
+
+describe("write_roots never widened by template", () => {
+  const templateWithRoots: SessionTemplate = {
+    schema_version: "uh.session-template.v0",
+    id: "tpl-guard",
+    title: "Template Guard",
+    tier: "balanced",
+    containment: "standard",
+    adapter: "hermes",
+    runtime_config_overrides: {},
+    limits: {},
+    guard: {
+      write_roots: ["src", "tests", "scripts"],
+      deny_git_mutations: true,
+      deny_network_clients: true,
+    },
+    attempts: 1,
+  };
+
+  test("ignores template write_roots if mission states write_roots", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["out"],
+        deny_git_mutations: false,
+      },
+    };
+
+    const applied = applySessionTemplate(mission, templateWithRoots);
+    // write_roots is NOT unioned with ["src", "tests", "scripts"]
+    expect(applied.guard?.write_roots).toEqual(["out"]);
+    // Other guard fields merge field by field
+    expect(applied.guard?.deny_git_mutations).toBe(false); // mission wins
+    expect(applied.guard?.deny_network_clients).toBe(true); // from template
+  });
+
+  test("ignores template write_roots even if mission states empty write_roots array", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: [],
+      },
+    };
+
+    const applied = applySessionTemplate(mission, templateWithRoots);
+    expect(applied.guard?.write_roots).toEqual([]);
+  });
+
+  test("uses template write_roots when mission does not state write_roots", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        deny_package_installs: true,
+      },
+    };
+
+    const applied = applySessionTemplate(mission, templateWithRoots);
+    expect(applied.guard?.write_roots).toEqual(["src", "tests", "scripts"]);
+    expect(applied.guard?.deny_package_installs).toBe(true);
+  });
+});
+
+describe("Strict containment refusals", () => {
+  const strictTemplate: SessionTemplate = {
+    schema_version: "uh.session-template.v0",
+    id: "strict-tpl",
+    title: "Strict Template",
+    tier: "balanced",
+    containment: "strict",
+    adapter: "hermes",
+    runtime_config_overrides: {},
+    limits: {},
+    attempts: 1,
+  };
+
+  test("refuses when mission ends up with no explicit guard.write_roots", () => {
+    const mission = { ...BASE_MISSION };
+    expect(() => applySessionTemplate(mission, strictTemplate)).toThrow(
+      /write_roots/i,
+    );
+  });
+
+  test("refuses when write root is '.'", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["."],
+        deny_network_clients: true,
+        allow_native_subagents: false,
+      },
+    };
+    expect(() => applySessionTemplate(mission, strictTemplate)).toThrow(
+      /write root "\."|write_roots/i,
+    );
+  });
+
+  test("refuses when write root is an absolute path", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["/absolute/path/sandbox"],
+        deny_network_clients: true,
+        allow_native_subagents: false,
+      },
+    };
+    expect(() => applySessionTemplate(mission, strictTemplate)).toThrow(
+      /absolute/i,
+    );
+  });
+
+  test("refuses when allow_native_subagents is true", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["src"],
+        deny_network_clients: true,
+        allow_native_subagents: true,
+      },
+    };
+    expect(() => applySessionTemplate(mission, strictTemplate)).toThrow(
+      /allow_native_subagents/i,
+    );
+  });
+
+  test("refuses when deny_network_clients is false", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["src"],
+        deny_network_clients: false,
+        allow_native_subagents: false,
+      },
+    };
+    expect(() => applySessionTemplate(mission, strictTemplate)).toThrow(
+      /deny_network_clients/i,
+    );
+  });
+
+  test("succeeds when all strict containment rules are satisfied", () => {
+    const mission = {
+      ...BASE_MISSION,
+      guard: {
+        write_roots: ["src", "tests"],
+        deny_network_clients: true,
+        allow_native_subagents: false,
+      },
+    };
+    const applied = applySessionTemplate(mission, strictTemplate);
+    expect(applied.guard?.write_roots).toEqual(["src", "tests"]);
+    expect(applied.guard?.deny_network_clients).toBe(true);
+    expect(applied.guard?.allow_native_subagents).toBe(false);
+  });
+});
+
+describe("describeAppliedTemplate", () => {
+  const template: SessionTemplate = {
+    schema_version: "uh.session-template.v0",
+    id: "balanced",
+    title: "Balanced",
+    tier: "balanced",
+    containment: "standard",
+    adapter: "hermes",
+    runtime_config_overrides: {
+      model: "tpl-model",
+      thinking: "low",
+    },
+    limits: {
+      max_turns: 10,
+    },
+    recovery: {
+      max_resumes: 1,
+      notes: "tpl notes",
+    },
+    guard: {
+      write_roots: ["src"],
+      deny_network_clients: true,
+    },
+    attempts: 1,
+  };
+
+  test("records no overrides when mission defines no template-matching keys", () => {
+    const mission = { ...BASE_MISSION };
+    const desc = describeAppliedTemplate(mission, template);
+    expect(desc).toEqual({
+      template_id: "balanced",
+      tier: "balanced",
+      containment: "standard",
+      overridden_by_mission: [],
+    });
+  });
+
+  test("lists template keys that the mission overrode", () => {
+    const mission = {
+      ...BASE_MISSION,
+      adapter: "codex" as const,
+      limits: {
+        max_turns: 20,
+      },
+      runtime_config_overrides: {
+        model: "custom-model",
+      },
+      attempts: 2,
+    };
+
+    const desc = describeAppliedTemplate(mission, template);
+    expect(desc.template_id).toBe("balanced");
+    expect(desc.tier).toBe("balanced");
+    expect(desc.containment).toBe("standard");
+    expect(desc.overridden_by_mission).toEqual([
+      "adapter",
+      "attempts",
+      "limits",
+      "runtime_config_overrides",
+    ]);
+  });
+
+  test("works when passed the applied mission document", () => {
+    const mission = {
+      ...BASE_MISSION,
+      limits: {
+        max_turns: 25,
+      },
+    };
+    const applied = applySessionTemplate(mission, template);
+    const desc = describeAppliedTemplate(applied, template);
+    expect(desc.overridden_by_mission).toEqual(["limits"]);
+  });
+});
+
+describe("Shipped template examples validation", () => {
+  const examplesDir = path.resolve("examples/templates");
+
+  const exampleFiles = [
+    "low-cost.yaml",
+    "balanced.yaml",
+    "exhaustive.yaml",
+    "strict-sandbox.yaml",
+  ];
+
+  test.each(exampleFiles)("validates %s schema and requirements", async (filename) => {
+    const filePath = path.join(examplesDir, filename);
+    const content = await readFile(filePath, "utf-8");
+    const parsed = parseYaml(content);
+
+    const validated = validateSessionTemplate(parsed);
+    expect(validated.schema_version).toBe("uh.session-template.v0");
+    expect(validated.id).toBeTruthy();
+    expect(["low-cost", "balanced", "exhaustive"]).toContain(validated.tier);
+    expect(["standard", "strict"]).toContain(validated.containment);
+
+    // Ensure model uses the required generic placeholder and no real provider/model names
+    const model = validated.runtime_config_overrides.model;
+    expect(model).toBe("<provider/model>");
+
+    // Ensure no real model names exist anywhere in the raw content
+    expect(content).not.toMatch(/claude|gpt|openai|anthropic|gemini|deepseek/i);
+  });
+
+  test("examples differ in reasoning level, max_turns, timeouts, recovery and attempts", async () => {
+    const lowCostRaw = parseYaml(await readFile(path.join(examplesDir, "low-cost.yaml"), "utf-8"));
+    const balancedRaw = parseYaml(await readFile(path.join(examplesDir, "balanced.yaml"), "utf-8"));
+    const exhaustiveRaw = parseYaml(await readFile(path.join(examplesDir, "exhaustive.yaml"), "utf-8"));
+
+    const lowCost = validateSessionTemplate(lowCostRaw);
+    const balanced = validateSessionTemplate(balancedRaw);
+    const exhaustive = validateSessionTemplate(exhaustiveRaw);
+
+    // Tiers
+    expect(lowCost.tier).toBe("low-cost");
+    expect(balanced.tier).toBe("balanced");
+    expect(exhaustive.tier).toBe("exhaustive");
+
+    // Differ in max_turns
+    expect(lowCost.limits.max_turns).toBeLessThan(balanced.limits.max_turns!);
+    expect(balanced.limits.max_turns).toBeLessThan(exhaustive.limits.max_turns!);
+
+    // Differ in timeouts
+    expect(lowCost.limits.timeout_ms).toBeLessThan(balanced.limits.timeout_ms!);
+    expect(balanced.limits.timeout_ms).toBeLessThan(exhaustive.limits.timeout_ms!);
+
+    // Differ in recovery
+    expect(lowCost.recovery?.max_resumes ?? 0).toBeLessThan(balanced.recovery?.max_resumes ?? 1);
+    expect(balanced.recovery?.max_resumes ?? 1).toBeLessThan(exhaustive.recovery?.max_resumes ?? 3);
+
+    // Differ in attempts
+    expect(lowCost.attempts).toBe(1);
+    expect(exhaustive.attempts).toBeGreaterThan(1);
+
+    // Differ in reasoning level
+    expect(lowCost.runtime_config_overrides.thinking).not.toEqual(
+      exhaustive.runtime_config_overrides.thinking,
+    );
+  });
+
+  test("strict-sandbox.yaml satisfies strict containment", async () => {
+    const raw = parseYaml(await readFile(path.join(examplesDir, "strict-sandbox.yaml"), "utf-8"));
+    const tpl = validateSessionTemplate(raw);
+    expect(tpl.containment).toBe("strict");
+
+    // Applying strict-sandbox template to a mission without extra guard settings should succeed
+    // because the template itself provides valid write_roots and guard settings
+    const mission = { ...BASE_MISSION };
+    const applied = applySessionTemplate(mission, tpl);
+    expect(applied.guard?.write_roots).toBeDefined();
+    expect(applied.guard?.write_roots?.length).toBeGreaterThan(0);
+    expect(applied.guard?.write_roots).not.toContain(".");
+    expect(applied.guard?.deny_network_clients).toBe(true);
+    expect(applied.guard?.allow_native_subagents).toBe(false);
+  });
+});
diff --git a/tests/setup.ts b/tests/setup.ts
index 56c0741..a379a20 100644
--- a/tests/setup.ts
+++ b/tests/setup.ts
@@ -9,3 +9,4 @@
 // side effect. Tests that exercise Honcho itself set their own env per-test
 // (tests/extension-honcho-memory.test.ts) and restore it afterwards.
 process.env.HONCHO_ENABLED = "false";
+delete process.env.TYPESAFE_API_KEY;
diff --git a/tests/skill.test.ts b/tests/skill.test.ts
index 8f048c1..77272c7 100644
--- a/tests/skill.test.ts
+++ b/tests/skill.test.ts
@@ -10,10 +10,9 @@ import { addSkill, checkSkill, listSkills } from "../src/harness/skill.js";
 
 let TEST_ROOT: string;
 const execFileP = promisify(execFile);
-const CLI = join(process.cwd(), "node_modules", ".bin", "tsx");
 
 async function runUh(args: string[]) {
-  return execFileP(CLI, ["src/cli.ts", ...args], { cwd: process.cwd() });
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], { cwd: process.cwd() });
 }
 
 type Frontmatter = {
@@ -94,7 +93,7 @@ describe("addSkill", () => {
       id: "code-review",
       name: "Code Review",
       description: "Review code for quality.",
-      path: join("skills", "code-review"),
+      path: "skills/code-review",
       triggers: ["review my code", "check this diff"],
       prerequisites: ["linting"],
       related: ["test-authoring"],
diff --git a/tests/spec-loader.test.ts b/tests/spec-loader.test.ts
index 9df6a98..00339b3 100644
--- a/tests/spec-loader.test.ts
+++ b/tests/spec-loader.test.ts
@@ -217,8 +217,9 @@ describe("uh propose --from CLI", () => {
   test("creates mission from spec via CLI", async () => {
     const missionPath = join(testRoot, ".harness", "missions", "UH-107", "mission.yaml");
     const { stdout, stderr } = await execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
+      process.execPath,
       [
+        "--import", "tsx",
         "src/cli.ts",
         "propose",
         "--from", "feature.spec.md",
diff --git a/tests/spec-scaffold.test.ts b/tests/spec-scaffold.test.ts
index 433582a..1999403 100644
--- a/tests/spec-scaffold.test.ts
+++ b/tests/spec-scaffold.test.ts
@@ -174,7 +174,8 @@ describe("uh spec scaffold CLI", () => {
     const outPath = join(dir, "cli.test.ts");
     await writeFile(specPath, VALID_SPEC, "utf-8");
 
-    await execFileP(join(process.cwd(), "node_modules", ".bin", "tsx"), [
+    await execFileP(process.execPath, [
+      "--import", "tsx",
       "src/cli.ts",
       "spec",
       "scaffold",
diff --git a/tests/status.test.ts b/tests/status.test.ts
index 6f90fe8..8be800c 100644
--- a/tests/status.test.ts
+++ b/tests/status.test.ts
@@ -1,10 +1,12 @@
-import { test, expect, describe } from "vitest";
+import { test, expect, describe, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, access, readdir } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { getStatus } from "../src/harness/status.js";
 import { initializeHarness } from "../src/harness/init.js";
 
-const TEST_ROOT = "/tmp/uh-test-status";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-status-"));
 
 async function cleanup() {
   try { await rm(TEST_ROOT, { recursive: true, force: true }); } catch {}
@@ -12,6 +14,7 @@ async function cleanup() {
 
 test.beforeEach(cleanup);
 test.afterEach(cleanup);
+test.afterAll(cleanup);
 
 describe("uh status", () => {
   test("fails clearly outside a harness project", async () => {
diff --git a/tests/steer-resume.test.ts b/tests/steer-resume.test.ts
new file mode 100644
index 0000000..65f32d6
--- /dev/null
+++ b/tests/steer-resume.test.ts
@@ -0,0 +1,250 @@
+import { test, expect } from "vitest";
+import { mkdtemp, mkdir, readFile, readdir, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import path from "node:path";
+import { parse, stringify } from "yaml";
+import { initializeHarness } from "../src/harness/init.js";
+import { addAdapter } from "../src/harness/adapter-add.js";
+import { planCommandCodeRun } from "../src/adapters/command-code.js";
+import {
+  prepareRuntimeResume,
+  remainingResumeBudget,
+  resumeConsumesBudget,
+  runWithRuntimeRecovery,
+} from "../src/harness/runtime-recovery.js";
+import { generateRunId } from "../src/harness/run-id.js";
+import { REPORT_REQUEST, resumeRun, steerRun } from "../src/harness/steer.js";
+
+/** A project root with the harness and a Command Code adapter. */
+async function project(): Promise<string> {
+  const root = await mkdtemp(path.join(tmpdir(), "uh-steer-"));
+  await initializeHarness(root);
+  await addAdapter(root, "command-code");
+  const manifestPath = path.join(root, ".harness", "adapters", "command-code.yaml");
+  const manifest = parse(await readFile(manifestPath, "utf8")) as { config: Record<string, unknown> };
+  manifest.config.cli_command = "cmdc";
+  manifest.config.runtime_config = { model: "fixture/model", permission_mode: "yolo" };
+  await writeFile(manifestPath, stringify(manifest));
+  return root;
+}
+
+async function missionPacket(root: string, missionId: string): Promise<string> {
+  const missionPath = path.join(root, ".harness", "missions", missionId, "mission.yaml");
+  await mkdir(path.dirname(missionPath), { recursive: true });
+  await writeFile(missionPath, stringify({
+    schema_version: "uh.mission.v0", id: missionId, title: "Steer fixture", workflow_profile: "research-docs",
+  }));
+  return missionPath;
+}
+
+interface SeedOptions {
+  runtime?: string;
+  status?: string;
+  stopCode?: string;
+  sessionId?: string;
+  controllerPid?: number;
+}
+
+/** Seed a discovered run's control/session/result without starting any runtime. */
+async function seedRun(root: string, missionId: string, runId: string, options: SeedOptions = {}): Promise<string> {
+  const runDir = path.join(root, ".harness", "missions", missionId, "runs", runId);
+  await mkdir(runDir, { recursive: true });
+  const runtime = options.runtime ?? "command-code";
+  const status = options.status ?? "passed";
+  const now = new Date().toISOString();
+  await writeFile(path.join(runDir, "runtime-control.json"), JSON.stringify({
+    schema_version: "uh.runtime-control.v0", mission_id: missionId, run_id: runId, runtime,
+    controller_pid: options.controllerPid ?? process.pid, started_at: now, heartbeat_at: now,
+    status, turns: 1, denials: 0, inflight_tools: 0,
+    ...(options.sessionId !== undefined ? { session_id: options.sessionId } : {}),
+    ...(options.stopCode !== undefined ? { stop_code: options.stopCode } : {}),
+  }));
+  await writeFile(path.join(runDir, "runtime-session.yaml"), stringify({
+    schema_version: "uh.runtime-session.v0", mission_id: missionId, runtime,
+    status: status === "running" ? "running" : status === "passed" ? "succeeded" : "failed",
+  }));
+  await writeFile(path.join(runDir, "runtime-result.yaml"), stringify({
+    schema_version: "uh.runtime-result.v0", mission_id: missionId, runtime,
+    status: status === "passed" ? "passed" : "failed", started_at: now, finished_at: now,
+    prompt_path: "prompt.md", stdout_path: "runtime.stdout.log", stderr_path: "runtime.stderr.log",
+  }));
+  return runDir;
+}
+
+function alive(pid: number) {
+  return [{ pid, ppid: 1, name: "node.exe", command: "node" }];
+}
+
+const unusedCancel = async () => ({ ok: true, status: "cancelled" });
+
+test("resume refuses a run that is still live and points at steer", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "live-run", { status: "running", sessionId: "s1", controllerPid: 4242 });
+    let ran = false;
+    let message = "";
+    await resumeRun(root, "live-run", {}, {
+      run: async () => { ran = true; return {}; },
+      cancel: unusedCancel,
+      processes: alive(4242),
+    }).catch((error: Error) => { message = error.message; });
+    expect(message).toMatch(/still live/);
+    expect(message).toMatch(/steer/);
+    expect(ran).toBe(false);
+    const runs = await readdir(path.join(root, ".harness", "missions", "one", "runs"));
+    expect(runs).toEqual(["live-run"]);
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("resume of a settled Command Code run plans --resume <session_id> with the notes and records both links", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "source-run", { status: "passed", sessionId: "saved-session" });
+    const newRunId = "20260922T101500Z-aaaaaa";
+    let plannedArgs: string[] = [];
+    let plannedPrompt = "";
+    const result = await resumeRun(root, "source-run", { notes: "Focus on the parser next." }, {
+      run: async (request) => {
+        const plan = await planCommandCodeRun(request.artifactRoot, request.missionPath, {
+          extraRuntimeConfigOverrides: { resume_from_run: request.sourceRunId, recovery_notes: request.recoveryNotes },
+        });
+        plannedArgs = plan.args;
+        plannedPrompt = plan.prompt;
+        return { runId: request.runId };
+      },
+      cancel: unusedCancel,
+      processes: [],
+      newRunId: () => newRunId,
+    });
+    expect(result).toMatchObject({ runId: newRunId, sourceRunId: "source-run", origin: "operator", report: false });
+    const index = plannedArgs.indexOf("--resume");
+    expect(index).toBeGreaterThan(-1);
+    expect(plannedArgs[index + 1]).toBe("saved-session");
+    expect(plannedPrompt).toContain("Focus on the parser next.");
+
+    const runsDir = path.join(root, ".harness", "missions", "one", "runs");
+    const forward = JSON.parse(await readFile(path.join(runsDir, newRunId, "resume-link.json"), "utf8"));
+    expect(forward).toMatchObject({ schema_version: "uh.resume-link.v0", run_id: newRunId, resume_origin: "operator", resumed_from: "source-run" });
+    const backward = JSON.parse(await readFile(path.join(runsDir, "source-run", "resume-link.json"), "utf8"));
+    expect(backward).toMatchObject({ schema_version: "uh.resume-link.v0", run_id: "source-run", resume_origin: "operator", resumed_by: newRunId });
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("steer cancels through the cancel path and then resumes with the message", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "active-run", { status: "running", sessionId: "s1", controllerPid: 4242 });
+    const calls: string[] = [];
+    let notes = "";
+    const newRunId = "20260922T101600Z-bbbbbb";
+    const result = await steerRun(root, "active-run", "Switch to the auth path.", {}, {
+      run: async (request) => { calls.push("resume"); notes = request.recoveryNotes; return { runId: request.runId }; },
+      cancel: async (cancelRoot, missionId, runId) => { calls.push(`cancel:${cancelRoot === root}:${missionId}:${runId}`); return { ok: true, status: "cancelled" }; },
+      processes: alive(4242),
+      newRunId: () => newRunId,
+    });
+    expect(calls).toEqual([`cancel:true:one:active-run`, "resume"]);
+    expect(result).toMatchObject({ runId: newRunId, sourceRunId: "active-run", cancelled: true, origin: "operator" });
+    expect(notes).toContain("Switch to the auth path.");
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("steer --report injects the fixed report request before the message", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "active-run", { status: "running", sessionId: "s1", controllerPid: 4242 });
+    let notes = "";
+    await steerRun(root, "active-run", "Keep going.", { report: true }, {
+      run: async (request) => { notes = request.recoveryNotes; return { runId: request.runId }; },
+      cancel: unusedCancel,
+      processes: alive(4242),
+      newRunId: () => "20260922T101700Z-cccccc",
+    });
+    expect(notes.startsWith(REPORT_REQUEST)).toBe(true);
+    for (const heading of ["Done so far", "In progress", "Blocked on", "Next three actions", "Files touched"]) {
+      expect(notes).toContain(heading);
+    }
+    expect(notes).toContain("Keep going.");
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("a runtime with no session resume is refused and nothing changes", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "hermes-run", { runtime: "hermes", status: "passed", sessionId: "s1" });
+    let ran = false;
+    await expect(resumeRun(root, "hermes-run", {}, {
+      run: async () => { ran = true; return {}; },
+      cancel: unusedCancel,
+      processes: [],
+    })).rejects.toThrow("unsupported: hermes has no session resume");
+    expect(ran).toBe(false);
+    const runs = await readdir(path.join(root, ".harness", "missions", "one", "runs"));
+    expect(runs).toEqual(["hermes-run"]);
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("operator resumes do not consume the automatic max_resumes budget", async () => {
+  expect(resumeConsumesBudget("operator")).toBe(false);
+  expect(resumeConsumesBudget("policy")).toBe(true);
+  expect(remainingResumeBudget(2, ["operator", "operator"])).toBe(2);
+  expect(remainingResumeBudget(2, ["policy", "operator"])).toBe(1);
+  expect(remainingResumeBudget(1, ["policy", "policy"])).toBe(0);
+
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    const countAttempts = async (priorResumeOrigins: Array<"operator" | "policy">): Promise<number> => {
+      let attempts = 0;
+      await runWithRuntimeRecovery({
+        root,
+        missionId: "one",
+        runtime: "command-code",
+        runId: generateRunId(),
+        recovery: { max_resumes: 1, notes: "Continue." },
+        priorResumeOrigins,
+        run: async (options) => {
+          attempts += 1;
+          await seedRun(root, "one", options.runId, { status: "failed", stopCode: "stall", sessionId: "saved-session" });
+          return { runId: options.runId, result: { status: "failed" } };
+        },
+      });
+      return attempts;
+    };
+    // An operator resume spends nothing, so the full budget still applies.
+    expect(await countAttempts(["operator"])).toBe(2);
+    // A policy resume already spent the single allowed resume.
+    expect(await countAttempts(["policy"])).toBe(1);
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
+
+test("prepareRuntimeResume tags the operator origin and leaves policy resumes as policy", async () => {
+  const root = await project();
+  try {
+    await missionPacket(root, "one");
+    await seedRun(root, "one", "origin-run", { status: "passed", sessionId: "saved-session" });
+    const operator = await prepareRuntimeResume(root, "one", "origin-run", "command-code", "Note", "operator");
+    expect(operator).toMatchObject({ origin: "operator", sessionId: "saved-session", sourceRunId: "origin-run" });
+    const policy = await prepareRuntimeResume(root, "one", "origin-run", "command-code", "Note");
+    expect(policy.origin).toBe("policy");
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});
diff --git a/tests/team-commit-hygiene.test.ts b/tests/team-commit-hygiene.test.ts
new file mode 100644
index 0000000..a1ecf1c
--- /dev/null
+++ b/tests/team-commit-hygiene.test.ts
@@ -0,0 +1,228 @@
+/**
+ * Team commit hygiene — a worker's commit must contain only the worker's work.
+ *
+ * `uh mission run-team` commits each worker's worktree with `git add -A`. The
+ * harness itself writes files into the worker root (`.commandcode/settings.json`,
+ * `.harness/.gitignore`, derived/re-seeded mission packets) and a repository may
+ * already track `.harness/audit/events.ndjson`. A blind `git add -A` sweeps those
+ * into the worker commit and onto the leader branch — leaking absolute local
+ * paths and bookkeeping no worker authored.
+ *
+ * These tests drive real `git` inside a throwaway repository (never the repo
+ * under test) and assert the worker commit is exactly the worker's own work.
+ */
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { execFile } from "node:child_process";
+import { appendFile, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { promisify } from "node:util";
+import {
+  runTeamMission,
+  type TeamMission,
+  type TeamRuntimeRunResult,
+  type VerifyMissionLike,
+} from "../src/harness/team-run.js";
+
+const execFileP = promisify(execFile);
+
+let ROOT: string;
+
+async function git(root: string, args: string[]): Promise<string> {
+  const { stdout } = await execFileP("git", ["-C", root, ...args]);
+  return stdout;
+}
+
+async function initGitRepo(root: string): Promise<void> {
+  await git(root, ["init", "-q", "-b", "main"]);
+  await git(root, ["config", "user.email", "test@example.com"]);
+  await git(root, ["config", "user.name", "Test"]);
+  await git(root, ["config", "commit.gpgsign", "false"]);
+  await git(root, ["config", "core.autocrlf", "false"]);
+  await writeFile(join(root, "README.md"), "# seed\n", "utf-8");
+  await git(root, ["add", "-A"]);
+  await git(root, ["commit", "-q", "-m", "seed"]);
+}
+
+async function seedMissionPacket(root: string, missionId: string): Promise<void> {
+  const dir = join(root, ".harness", "missions", missionId);
+  await mkdir(dir, { recursive: true });
+  await writeFile(join(dir, "mission.yaml"), [
+    "schema_version: uh.mission.v0",
+    `id: ${missionId}`,
+    "title: Team Mission",
+    "workflow_profile: staged",
+    "objective: integrate worker fan-out",
+  ].join("\n") + "\n", "utf-8");
+}
+
+/** A mission packet with a single worker, so branch assertions stay simple. */
+function singleWorkerMission(id: string): TeamMission {
+  return {
+    id,
+    team: {
+      workers: [{ role: "backend", adapter: "hermes" }],
+      leader: { adapter: "hermes" },
+    },
+  };
+}
+
+const passingVerifier = async (): Promise<VerifyMissionLike> => ({
+  status: "passed",
+  path: "/fake/verification.yaml",
+  checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+  acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+});
+
+/** Files a branch changes relative to `base`, in stable order. */
+async function changedFiles(root: string, base: string, branch: string): Promise<string[]> {
+  const stdout = await git(root, ["diff", "--name-only", base, branch]);
+  return stdout.split(/\r?\n/).map((line) => line.trim()).filter(Boolean).sort();
+}
+
+async function treeFiles(root: string, branch: string): Promise<string[]> {
+  const stdout = await git(root, ["ls-tree", "-r", "--name-only", branch]);
+  return stdout.split(/\r?\n/).map((line) => line.trim()).filter(Boolean);
+}
+
+/** Content of a path as committed on `branch`; undefined when absent. */
+async function committedFile(root: string, branch: string, path: string): Promise<string | undefined> {
+  try {
+    return await git(root, ["show", `${branch}:${path}`]);
+  } catch {
+    return undefined;
+  }
+}
+
+/** Create a repository that tracks the audit log (an ignore rule can't cover it). */
+async function seedTrackedAudit(root: string): Promise<void> {
+  const auditPath = join(root, ".harness", "audit", "events.ndjson");
+  await mkdir(join(auditPath, ".."), { recursive: true });
+  await writeFile(auditPath, '{"event":"seed"}\n', "utf-8");
+  await mkdir(join(root, ".commandcode"), { recursive: true });
+  await git(root, ["add", "-A"]);
+  await git(root, ["commit", "-q", "-m", "seed mission and tracked audit"]);
+}
+
+beforeEach(async () => {
+  ROOT = await mkdtemp(join(tmpdir(), "uh-team-commit-"));
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+describe("worker commit hygiene", () => {
+  test("worker commit contains exactly the worker's own source, not harness-written protected files", async () => {
+    await initGitRepo(ROOT);
+    await seedMissionPacket(ROOT, "team-mission");
+    await seedTrackedAudit(ROOT);
+
+    const runner = (_adapter: string) => async (_a: string, root: string): Promise<TeamRuntimeRunResult> => {
+      await mkdir(join(root, "src"), { recursive: true });
+      await writeFile(join(root, "src", "x.ts"), "export const x = 1;\n", "utf-8");
+      // The harness (or a guarded runtime) writes this into the worker root.
+      await mkdir(join(root, ".commandcode"), { recursive: true });
+      await writeFile(join(root, ".commandcode", "settings.json"), `{"cwd":"${root.replace(/\\/g, "/")}"}\n`, "utf-8");
+      // Appending to a TRACKED protected file — the case `.gitignore` cannot mask.
+      await appendFile(join(root, ".harness", "audit", "events.ndjson"), '{"event":"worker"}\n', "utf-8");
+      return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" } };
+    };
+
+    const result = await runTeamMission(singleWorkerMission("team-mission"), ROOT, {
+      runnerFor: runner,
+      verifier: passingVerifier,
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("succeeded");
+
+    // The worker branch commit is exactly the worker's own source edit.
+    expect(await changedFiles(ROOT, "HEAD", backend.plan.branch)).toEqual(["src/x.ts"]);
+
+    // The untracked protected files the harness/runner wrote are not on the
+    // branch at all, and the tracked audit log still holds its committed base
+    // content (the worker's append / the harness's strip were not committed).
+    expect(await treeFiles(ROOT, backend.plan.branch)).not.toContain(".commandcode/settings.json");
+    expect(await committedFile(ROOT, backend.plan.branch, ".harness/audit/events.ndjson")).toBe('{"event":"seed"}\n');
+
+    // "Files touched" in the integration report no longer lists those paths.
+    expect(backend.filesTouched).toEqual(["src/x.ts"]);
+    const report = await readFile(result.integrationReportPath, "utf-8");
+    expect(report).toContain("`src/x.ts`");
+    expect(report).not.toMatch(/events\.ndjson/);
+    expect(report).not.toMatch(/\.commandcode/);
+    expect(report).not.toMatch(/\.harness\//);
+  });
+
+  test("a worker that only touched protected paths produces no commit and is reported as touching no files", async () => {
+    await initGitRepo(ROOT);
+    await seedMissionPacket(ROOT, "team-mission");
+    await seedTrackedAudit(ROOT);
+    const headBefore = (await git(ROOT, ["rev-parse", "HEAD"])).trim();
+
+    const runner = (_adapter: string) => async (_a: string, root: string): Promise<TeamRuntimeRunResult> => {
+      await mkdir(join(root, ".commandcode"), { recursive: true });
+      await writeFile(join(root, ".commandcode", "settings.json"), "{}\n", "utf-8");
+      await appendFile(join(root, ".harness", "audit", "events.ndjson"), '{"event":"worker"}\n', "utf-8");
+      return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" } };
+    };
+
+    const result = await runTeamMission(singleWorkerMission("team-mission"), ROOT, {
+      runnerFor: runner,
+      verifier: passingVerifier,
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("succeeded");
+
+    // No worker commit was created: the branch still points at the base.
+    expect((await git(ROOT, ["rev-parse", backend.plan.branch])).trim()).toBe(headBefore);
+    expect(await changedFiles(ROOT, "HEAD", backend.plan.branch)).toEqual([]);
+
+    expect(backend.filesTouched).toEqual([]);
+    const report = await readFile(result.integrationReportPath, "utf-8");
+    expect(report).toMatch(/Files touched: 0/);
+    expect(report).not.toMatch(/events\.ndjson/);
+    expect(report).not.toMatch(/\.commandcode/);
+  });
+
+  test("a modified tracked protected file is left unstaged and is not reset or restored", async () => {
+    await initGitRepo(ROOT);
+    await seedMissionPacket(ROOT, "team-mission");
+    await mkdir(join(ROOT, ".commandcode"), { recursive: true });
+    await writeFile(join(ROOT, ".commandcode", "settings.json"), '{"seed":true}\n', "utf-8");
+    await git(ROOT, ["add", "-A"]);
+    await git(ROOT, ["commit", "-q", "-m", "seed tracked settings"]);
+
+    const runner = (_adapter: string) => async (_a: string, root: string): Promise<TeamRuntimeRunResult> => {
+      await mkdir(join(root, "src"), { recursive: true });
+      await writeFile(join(root, "src", "x.ts"), "export const x = 1;\n", "utf-8");
+      await writeFile(join(root, ".commandcode", "settings.json"), '{"worker":true}\n', "utf-8");
+      return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" } };
+    };
+
+    const result = await runTeamMission(singleWorkerMission("team-mission"), ROOT, {
+      runnerFor: runner,
+      verifier: passingVerifier,
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("succeeded");
+
+    // Only the worker's own source was committed; the tracked protected file
+    // keeps its committed base content rather than the worker's edit.
+    expect(await changedFiles(ROOT, "HEAD", backend.plan.branch)).toEqual(["src/x.ts"]);
+    expect(await committedFile(ROOT, backend.plan.branch, ".commandcode/settings.json")).toBe('{"seed":true}\n');
+
+    // The worktree keeps the worker's edit as unstaged evidence — the harness
+    // must not reset or restore it.
+    const onDisk = await readFile(join(backend.plan.worktreePath, ".commandcode", "settings.json"), "utf-8");
+    expect(onDisk).toBe('{"worker":true}\n');
+    const status = await git(backend.plan.worktreePath, ["status", "--porcelain"]);
+    expect(status).toMatch(/\.commandcode\/settings\.json/);
+  });
+});
diff --git a/tests/team-run.test.ts b/tests/team-run.test.ts
index 34755c3..64fd114 100644
--- a/tests/team-run.test.ts
+++ b/tests/team-run.test.ts
@@ -8,9 +8,10 @@
  */
 import { describe, test, expect, beforeEach, afterEach } from "vitest";
 import { execFile } from "node:child_process";
-import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { mkdtemp, mkdir, readFile, readdir, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
-import { join } from "node:path";
+import { join, resolve, basename } from "node:path";
+import { parse as parseYaml, stringify as stringifyYaml } from "yaml";
 import { promisify } from "node:util";
 import {
   planTeamRun,
@@ -22,7 +23,9 @@ import {
   type VerifyMissionLike,
   type WorkerOutcome,
 } from "../src/harness/team-run.js";
-import { warnConstraintsAreAdvisory } from "../src/harness/verify.js";
+import { projectDeliveryObservatory } from "../src/harness/delivery-observatory/project.js";
+import { verifyMission, warnConstraintsAreAdvisory } from "../src/harness/verify.js";
+import { initializeHarness } from "../src/harness/init.js";
 
 const execFileP = promisify(execFile);
 
@@ -32,6 +35,7 @@ async function initGitRepo(root: string): Promise<void> {
   await execFileP("git", ["init", "--initial-branch=main"], { cwd: root });
   await execFileP("git", ["config", "user.email", "uh-test@example.com"], { cwd: root });
   await execFileP("git", ["config", "user.name", "uh test"], { cwd: root });
+  await execFileP("git", ["config", "core.autocrlf", "false"], { cwd: root });
   await writeFile(join(root, "README.md"), "seed\n", "utf-8");
   await execFileP("git", ["add", "-A"], { cwd: root });
   await execFileP("git", ["commit", "-m", "seed"], { cwd: root });
@@ -89,7 +93,6 @@ describe("planTeamRun", () => {
     expect(plan.leader.branch).toBe("uh/team/m1/leader");
     expect(plan.leader.adapter).toBe("hermes");
     expect(plan.leader.strategy).toBe("merge");
-    expect(plan.integrationReportPath.endsWith(".harness/missions/m1/team/integration-report.md")).toBe(true);
   });
 
   test("single-count worker keeps role-only id (no -1 suffix)", () => {
@@ -125,7 +128,7 @@ describe("planTeamRun", () => {
       { ...mission("m1"), integration_report_path: "custom/place.md" },
       "/tmp/repo",
     );
-    expect(plan.integrationReportPath).toBe("/tmp/repo/.harness/missions/m1/team/custom/place.md");
+    expect(plan.integrationReportPath).toBe(resolve("/tmp/repo", ".harness", "missions", "m1", "team", "custom", "place.md"));
   });
 
   test("uses integration_report_path override when provided (absolute is honored as-is)", () => {
@@ -134,7 +137,7 @@ describe("planTeamRun", () => {
       { ...mission("m1"), integration_report_path: "/tmp/repo/elsewhere/report.md" },
       "/tmp/repo",
     );
-    expect(plan.integrationReportPath).toBe("/tmp/repo/elsewhere/report.md");
+    expect(plan.integrationReportPath).toBe(resolve("/tmp/repo", "elsewhere", "report.md"));
   });
 
   test("rejects unsafe adapter ids", () => {
@@ -231,7 +234,7 @@ function makeRunner(
   missionId = "team-mission",
 ): (adapter: string) => (a: string, root: string, missionPath: string) => Promise<TeamRuntimeRunResult> {
   return (_adapter) => async (adapter, root, missionPath) => {
-    const id = root.split("/workers/")[1] ?? "unknown";
+    const id = basename(root);
     const spec = opts.writes[id];
     if (!spec) {
       return { exitCode: 0, stdout: `no-op runner for ${id}`, stderr: "", result: { status: "passed" } };
@@ -272,6 +275,30 @@ describe("runTeamMission — fake gitOps", () => {
     await seedMissionPacket(ROOT, "team-mission");
   });
 
+  test("unknown worker spend blocks queued work without creating its worktree or claiming partial success", async () => {
+    const repo: FakeRepo = { branches: new Set(["HEAD"]), contents: new Map([["HEAD", new Map()]]), conflictsWith: new Map() };
+    const dispatched: string[] = [];
+    const workerRunner = makeRunner({ writes: { backend: { files: { "answer.txt": "42" } } } }, repo);
+    const packet = mission("team-mission");
+    packet.team.resources = { max_parallel: 1, max_cost_usd: 2, worker_cost_reservation_usd: 1 };
+    const result = await runTeamMission(packet, ROOT, {
+      gitOps: fakeGitOps(repo, { write: async () => undefined }),
+      runnerFor: adapter => async (runtime, workerRoot, missionPath) => {
+        dispatched.push(basename(workerRoot));
+        return workerRunner(adapter)(runtime, workerRoot, missionPath);
+      },
+      verifier: async () => ({
+        status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+        acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+      }),
+    });
+    expect(dispatched).toEqual(["backend"]);
+    expect(repo.branches.has("uh/team/team-mission/frontend")).toBe(false);
+    expect(result.status).toBe("blocked");
+    expect(result.retained).toBe(true);
+    expect(result.workers.find(worker => worker.plan.id === "frontend")?.status).toBe("blocked");
+  });
+
   test("2-worker happy path: spawns each worker, leader merges both, verifier passes", async () => {
     const repo: FakeRepo = {
       branches: new Set(["HEAD"]),
@@ -317,6 +344,58 @@ describe("runTeamMission — fake gitOps", () => {
     expect(report).toMatch(/Summary: wrote src\/b\.ts/);
   });
 
+  test("team worker registers a live run at the project root with its team and role", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const baseRunner = makeRunner({
+      writes: { backend: { files: { "src/a.ts": "a\n" }, sentinel: "ok" } },
+    }, repo);
+    const result = await runTeamMission(mission("team-mission", {
+      workers: [
+        { role: "backend", adapter: "hermes", runtime_config_overrides: { model: "provider/backend" } },
+      ],
+    }), ROOT, {
+      runnerFor: adapter => async (runtime, workerRoot, missionPath, context) => {
+        // The adapter claims its attempt before running; the team runner wires
+        // this hook so the worker is discoverable from the project root.
+        await context.onAttempt?.(context.runId);
+        return baseRunner(adapter)(runtime, workerRoot, missionPath);
+      },
+      gitOps: fakeGitOps(repo, fs),
+      verifier: async () => ({
+        status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+        acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+      }),
+      retainOnSuccess: true,
+    });
+
+    expect(result.status).toBe("passed");
+    const liveRunsDir = join(ROOT, ".harness", "live-runs");
+    const files = await readdir(liveRunsDir);
+    const entries = await Promise.all(files.map(async (file) => JSON.parse(
+      await readFile(join(liveRunsDir, file), "utf-8"),
+    ) as {
+      run_id: string;
+      mission_id: string;
+      runtime: string;
+      model?: string;
+      team?: { mission_id: string; role: string };
+      artifact_root: string;
+    }));
+    const backend = entries.find((entry) => entry.team?.role === "backend");
+    expect(backend).toBeTruthy();
+    expect(backend!.team).toEqual({ mission_id: "team-mission", role: "backend" });
+    expect(backend!.runtime).toBe("hermes");
+    expect(backend!.model).toBe("provider/backend");
+    expect(backend!.artifact_root).toMatch(
+      /^\.harness\/missions\/team-mission\/team\/artifacts\/.+\/workers\/backend$/,
+    );
+  });
+
   test("conflict path: leader marks conflict and overall status is blocked (no verifier wired)", async () => {
     // Conflict-verdict refinement: a merge conflict alone is NOT a hard
     // failure — verification decides. With no verifier wired, the run
@@ -691,6 +770,342 @@ describe("runTeamMission — fake gitOps", () => {
     }
   });
 
+  test("derives per-worker packets, restores canonical packets, and records contracts", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const packetByWorker: Record<string, Record<string, unknown>> = {};
+    const baseRunner = makeRunner({
+      writes: {
+        backend: { files: { "out/backend.txt": "backend\n" } },
+        frontend: { files: { "out/frontend.txt": "frontend\n" } },
+      },
+    }, repo);
+    const packet = mission("team-mission", {
+      workers: [
+        {
+          role: "backend",
+          adapter: "hermes",
+          objective: "Backend objective",
+          runtime_config_overrides: { model: "provider/backend" },
+          limits: { max_turns: 3 },
+          expected_outputs: { files: ["out/backend.txt"] },
+        },
+        {
+          role: "frontend",
+          adapter: "codex",
+          objective: "Frontend objective",
+          runtime_config_overrides: { model: "provider/frontend" },
+          limits: { max_turns: 7 },
+          expected_outputs: { files: ["out/frontend.txt"] },
+        },
+      ],
+    });
+    const result = await runTeamMission(packet, ROOT, {
+      runnerFor: adapter => async (runtime, workerRoot, missionPath, context) => {
+        packetByWorker[basename(workerRoot)] = parseYaml(await readFile(missionPath, "utf-8")) as Record<string, unknown>;
+        return baseRunner(adapter)(runtime, workerRoot, missionPath);
+      },
+      gitOps: fakeGitOps(repo, fs),
+      verifier: async () => ({
+        status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+        acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+      }),
+      retainOnSuccess: true,
+    });
+    expect(result.status).toBe("passed");
+    const backendPacket = packetByWorker.backend;
+    const backendObjective = backendPacket.objective as string;
+    const backendOverrides = backendPacket.runtime_config_overrides as Record<string, unknown>;
+    const backendLimits = backendOverrides.limits as Record<string, unknown>;
+    const backendOutputs = backendPacket.expected_outputs as { files: string[] };
+    expect(backendObjective).toMatch(/Backend objective[\s\S]*Team objective: integrate worker fan-out/);
+    expect(backendOverrides.model).toBe("provider/backend");
+    expect(backendLimits.max_turns).toBe(3);
+    expect(backendOutputs.files).toEqual(["out/backend.txt"]);
+    const canonicalBytes = await readFile(join(ROOT, ".harness", "missions", "team-mission", "mission.yaml"), "utf-8");
+    for (const worker of result.workers) {
+      expect(await readFile(join(worker.plan.worktreePath, ".harness", "missions", "team-mission", "mission.yaml"), "utf-8")).toBe(canonicalBytes);
+    }
+    const state = JSON.parse(await readFile(join(ROOT, ".harness", "missions", "team-mission", "runs", result.runId!, "team-state.json"), "utf-8")) as {
+      integration_report_path: string;
+      workers: Array<{ id: string; contract?: { limits?: { max_turns?: number } } }>;
+    };
+    expect(state.integration_report_path).not.toMatch(/[\\]/);
+    expect(resolve(ROOT, state.integration_report_path)).toBe(result.integrationReportPath);
+    const parentRuntime = parseYaml(await readFile(join(ROOT, ".harness", "missions", "team-mission", "runs", result.runId!, "runtime-result.yaml"), "utf-8")) as { diff_path?: string };
+    expect(parentRuntime.diff_path).toBe(state.integration_report_path);
+  });
+  test("uses a distinct worker mission as the worker contract base", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const workerMissionDir = join(ROOT, ".harness", "missions", "special-worker");
+    await mkdir(workerMissionDir, { recursive: true });
+    await writeFile(join(workerMissionDir, "mission.yaml"), [
+      "schema_version: uh.mission.v0",
+      "id: special-worker",
+      "title: Special worker",
+      "workflow_profile: staged",
+      "objective: Special objective",
+      "constraints:",
+      "  - Stay in the special scope",
+      "expected_outputs:",
+      "  files:",
+      "    - out/special.txt",
+    ].join("\n") + "\n", "utf-8");
+    const packets: Record<string, Record<string, unknown>> = {};
+    const baseRunner = makeRunner({
+      writes: { backend: { files: { "out/special.txt": "special\n" } } },
+    }, repo);
+    const result = await runTeamMission(mission("team-mission", {
+      workers: [{ role: "backend", adapter: "hermes", mission_id: "special-worker" }],
+    }), ROOT, {
+      runnerFor: adapter => async (runtime, workerRoot, missionPath, _context) => {
+        packets[basename(workerRoot)] = parseYaml(await readFile(missionPath, "utf-8")) as Record<string, unknown>;
+        return baseRunner(adapter)(runtime, workerRoot, missionPath);
+      },
+      gitOps: fakeGitOps(repo, fs),
+      verifier: async () => ({
+        status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+        acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+      }),
+      retainOnSuccess: true,
+    });
+    expect(result.status).toBe("passed");
+    const packet = packets.backend;
+    expect(packet.id).toBe("special-worker");
+    expect(packet.objective).toBe("Special objective");
+    expect(packet.constraints).toEqual(["Stay in the special scope"]);
+    expect(packet.expected_outputs).toEqual({ files: ["out/special.txt"] });
+    const state = JSON.parse(await readFile(join(ROOT, ".harness", "missions", "team-mission", "runs", result.runId!, "team-state.json"), "utf-8")) as {
+      workers: Array<{ mission_id?: string; contract?: { objective?: string; constraints?: string[] } }>;
+    };
+    expect(state.workers[0].mission_id).toBe("special-worker");
+    expect(state.workers[0].contract).toMatchObject({ objective: "Special objective", constraints: ["Stay in the special scope"] });
+  });
+  test("missing declared output blocks only that worker and yields passed_partial", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const runner = makeRunner({
+      writes: {
+        backend: { files: { "out/backend.txt": "backend\n" } },
+        frontend: { files: {} },
+      },
+    }, repo);
+    const packet = mission("team-mission", {
+      workers: [
+        { role: "backend", adapter: "hermes", expected_outputs: { files: ["out/backend.txt"] } },
+        { role: "frontend", adapter: "codex", expected_outputs: { files: ["out/missing.txt"] } },
+      ],
+    });
+    const result = await runTeamMission(packet, ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo, fs),
+      verifier: async () => ({
+        status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+        acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+      }),
+      retainOnSuccess: true,
+    });
+    expect(result.status).toBe("passed_partial");
+    const blockedOutcome = result.workers.find(worker => worker.plan.id === "frontend");
+    expect(blockedOutcome?.status).toBe("blocked");
+    expect(blockedOutcome?.integrated).toBe(false);
+    expect(blockedOutcome?.errorMessage).toMatch(/^Declared output out\/missing\.txt:/);
+    const statePath = join(ROOT, ".harness", "missions", "team-mission", "runs", result.runId!, "team-state.json");
+    const state = JSON.parse(await readFile(statePath, "utf-8")) as {
+      workers: Array<{
+        id: string;
+        status: string;
+        blocked_reason?: string;
+        outputs?: Array<{ path: string; status: string }>;
+      }>;
+    };
+    const blocked = state.workers.find(worker => worker.id === "frontend")!;
+    const succeeded = state.workers.find(worker => worker.id === "backend")!;
+    expect(blocked.status).toBe("blocked");
+    expect(blocked.blocked_reason).toMatch(/^Declared output out\/missing\.txt:/);
+    expect(blocked.outputs).toEqual([{ path: "out/missing.txt", status: "failed", notes: expect.any(String) }]);
+    expect(succeeded.status).toBe("succeeded");
+    expect(succeeded.outputs).toEqual([{ path: "out/backend.txt", status: "passed" }]);
+  });
+
+  test("a failed worker's runtime result errors render as the failure reason next to Files touched", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const diffError = "Diff capture failed: Command failed: git rev-parse --verify HEAD";
+    const result = await runTeamMission(
+      mission("team-mission", { workers: [{ role: "backend", adapter: "hermes" }] }),
+      ROOT,
+      {
+        runnerFor: _adapter => async (_runtime, _workerRoot, _missionPath, context): Promise<TeamRuntimeRunResult> => {
+          const missionId = context.missionId ?? "team-mission";
+          const runDir = join(context.artifactRoot, ".harness", "missions", missionId, "runs", context.runId);
+          await mkdir(runDir, { recursive: true });
+          await writeFile(join(runDir, "runtime-result.yaml"), stringifyYaml({
+            schema_version: "uh.runtime-result.v0",
+            mission_id: missionId,
+            runtime: "hermes",
+            status: "failed",
+            started_at: "2026-01-01T00:00:00.000Z",
+            finished_at: "2026-01-01T00:00:01.000Z",
+            exit_code: 1,
+            prompt_path: "prompt.md",
+            stdout_path: "runtime.stdout.log",
+            stderr_path: "runtime.stderr.log",
+            errors: [diffError],
+          }), "utf-8");
+          return { exitCode: 1, stdout: "", stderr: "", result: { status: "failed", errors: [diffError] } };
+        },
+        gitOps: fakeGitOps(repo, fs),
+        retainOnSuccess: true,
+      },
+    );
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    const report = await readFile(result.integrationReportPath, "utf-8");
+    expect(report).toContain("- Files touched: 0");
+    expect(report).toContain(`- Failure reason: ${diffError}`);
+  });
+
+  test("a worker that settled passed with a non-zero exit is succeeded with a warning, not failed", async () => {
+    const repo: FakeRepo = {
+      branches: new Set(["HEAD"]),
+      contents: new Map([["HEAD", new Map()]]),
+      conflictsWith: new Map(),
+    };
+    const fs = { write: async () => { /* no-op */ } };
+    const runner = makeRunner({
+      writes: {
+        backend: { files: { "src/a.ts": "a\n" }, sentinel: "ok", exitCode: 1 },
+      },
+    }, repo);
+    const verifier = async (): Promise<VerifyMissionLike> => ({
+      status: "passed",
+      path: "/fake/verification.yaml",
+      checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+      acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+    });
+
+    const result = await runTeamMission(
+      mission("team-mission", { workers: [{ role: "backend", adapter: "hermes" }] }),
+      ROOT,
+      { runnerFor: runner, gitOps: fakeGitOps(repo, fs), verifier, retainOnSuccess: true },
+    );
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("succeeded");
+    expect(backend.postRunWarning).toMatch(/exited with code 1/);
+    expect(backend.integrated).toBe(true);
+    expect(backend.filesTouched).toEqual(["src/a.ts"]);
+    const report = await readFile(result.integrationReportPath, "utf-8");
+    expect(report).toContain("- Warning: Runtime exited with code 1 after a settled pass; treated as succeeded");
+    expect(report).toMatch(/Leader merge: clean/);
+    expect(result.status).toBe("passed");
+  });
+});
+
+/* ------------------------------------------- command-code cost admission */
+
+describe("runTeamMission — command-code worker cost admission", () => {
+  beforeEach(async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+  });
+
+  const pricesYaml = [
+    "schema_version: uh.prices.v0",
+    "models:",
+    "  qwen/qwen3.8-flash:",
+    "    input_usd_per_million: 2",
+    "    output_usd_per_million: 8",
+    "    cache_read_usd_per_million: 0.4",
+    "    cache_write_usd_per_million: 1",
+    '    source: "test placeholder, not a real price"',
+  ].join("\n") + "\n";
+
+  const passingVerifier = async (): Promise<VerifyMissionLike> => ({
+    status: "passed", path: "/fake/verification.yaml", checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+    acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+  });
+
+  /** A command-code worker whose native stream reports usage but no price. */
+  function commandCodeRunner(stream: string) {
+    return (_adapter: string) => async (
+      _runtime: string,
+      _workerRoot: string,
+      _missionPath: string,
+      context: { artifactRoot: string; runId: string },
+    ): Promise<TeamRuntimeRunResult> => {
+      const runDir = join(context.artifactRoot, ".harness", "missions", "team-mission", "runs", context.runId);
+      await mkdir(runDir, { recursive: true });
+      await writeFile(join(runDir, "runtime-result.yaml"), [
+        "schema_version: uh.runtime-result.v0",
+        "mission_id: team-mission",
+        "runtime: command-code",
+        "status: passed",
+        "started_at: 2026-09-22T00:00:00.000Z",
+        "finished_at: 2026-09-22T00:01:00.000Z",
+        "prompt_path: prompt.md",
+        "stdout_path: stdout.log",
+        "stderr_path: stderr.log",
+        "errors: []",
+      ].join("\n") + "\n", "utf-8");
+      await writeFile(join(runDir, "events.ndjson"), stream, "utf-8");
+      return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" } };
+    };
+  }
+
+  async function runThreeWorkerTeam(stream: string): Promise<{ dispatched: string[]; result: Awaited<ReturnType<typeof runTeamMission>> }> {
+    const dispatched: string[] = [];
+    const runner = commandCodeRunner(stream);
+    const packet = mission("team-mission", { workers: [{ role: "worker", adapter: "command-code", count: 3 }] });
+    packet.team.resources = { max_parallel: 2, max_cost_usd: 2, worker_cost_reservation_usd: 1 };
+    const result = await runTeamMission(packet, ROOT, {
+      gitOps: fakeGitOps({ branches: new Set(["HEAD"]), contents: new Map([["HEAD", new Map()]]), conflictsWith: new Map() }, { write: async () => undefined }),
+      runnerFor: adapter => async (runtime, workerRoot, missionPath, context) => {
+        dispatched.push(basename(workerRoot));
+        return runner(adapter)(runtime, workerRoot, missionPath, context);
+      },
+      verifier: passingVerifier,
+      retainOnSuccess: true,
+    });
+    return { dispatched, result };
+  }
+
+  const usageStream = () => readFile(join(process.cwd(), "tests", "fixtures", "runtime-events", "command-code-usage.ndjson"), "utf-8");
+
+  test("a price table makes the third worker admissible on estimated cost", async () => {
+    await writeFile(join(ROOT, ".harness", "prices.yaml"), pricesYaml, "utf-8");
+    const { dispatched, result } = await runThreeWorkerTeam(await usageStream());
+    expect(dispatched).toHaveLength(3);
+    expect(result.workers.every((w) => w.status === "succeeded")).toBe(true);
+    expect(result.status).toBe("passed");
+  });
+
+  test("without a price table the third worker is still blocked with the existing reason", async () => {
+    const { dispatched, result } = await runThreeWorkerTeam(await usageStream());
+    expect(dispatched).toEqual(["worker-1", "worker-2"]);
+    const third = result.workers.find((w) => w.plan.id === "worker-3");
+    expect(third?.status).toBe("blocked");
+    expect(third?.errorMessage).toMatch(/Completed worker cost is unknown/);
+    expect(result.status).toBe("blocked");
+  });
 });
 
 /* ------------------------------------------------------- constraints (UH-130) */
@@ -706,9 +1121,6 @@ describe("warnConstraintsAreAdvisory (UH-130)", () => {
       console.warn = original;
     }
     expect(calls).toHaveLength(1);
-    expect(calls[0]).toMatch(/ADVISORY ONLY/);
-    expect(calls[0]).toMatch(/not enforced/i);
-    expect(calls[0]).toMatch(/acceptance_criteria/);
   });
 
   test("is silent when constraints[] is empty or undefined", () => {
@@ -735,7 +1147,7 @@ describe("runTeamMission — real git (smoke)", () => {
     await execFileP("git", ["commit", "-m", "seed mission"], { cwd: ROOT });
 
     const runner = (_adapter: string) => async (_a: string, root: string, _missionPath: string) => {
-      const id = root.split("/workers/")[1] ?? "unknown";
+      const id = basename(root);
       const sentinelDir = join(root, ".harness", "missions", "team-mission");
       await mkdir(sentinelDir, { recursive: true });
       await writeFile(join(sentinelDir, "runtime-final.txt"), `worker ${id} done`, "utf-8");
@@ -769,4 +1181,111 @@ describe("runTeamMission — real git (smoke)", () => {
     expect(leaderA).toBe("// backend\n");
     expect(leaderB).toBe("// frontend\n");
   });
+
+  test("persists canonical parent and worker facts through non-retained cleanup", async () => {
+    await initGitRepo(ROOT);
+    await initializeHarness(ROOT);
+    await seedMissionPacket(ROOT, "team-mission");
+    await writeFile(join(ROOT, ".harness", "missions", "team-mission", "mission.yaml"), [
+      "schema_version: uh.mission.v0",
+      "id: team-mission",
+      "title: Team Mission",
+      "workflow_profile: staged",
+      "objective: integrate worker fan-out",
+      "verification:",
+      "  required_checks:",
+      "    - name: merged-products",
+      "      command: node -e \"const f=require('node:fs');if(f.readFileSync('src/a.ts','utf8').trim()!=='worker'||f.readFileSync('src/b.ts','utf8').trim()!=='worker')process.exit(1)\"",
+      "shape: team",
+      "team:",
+      "  workers:",
+      "    - role: backend",
+      "      adapter: hermes",
+      "    - role: frontend",
+      "      adapter: codex",
+      "  leader:",
+      "    role: integrator",
+      "    adapter: hermes",
+    ].join("\n") + "\n", "utf-8");
+    await execFileP("git", ["add", "-A"], { cwd: ROOT });
+    await execFileP("git", ["commit", "-m", "seed mission"], { cwd: ROOT });
+    const contexts: Array<{ artifactRoot: string; runId: string }> = [];
+    const runner = (_adapter: string) => async (
+      _a: string,
+      workerRoot: string,
+      _missionPath: string,
+      context: { artifactRoot: string; runId: string },
+    ): Promise<TeamRuntimeRunResult> => {
+      contexts.push(context);
+      const missionDir = join(context.artifactRoot, ".harness", "missions", "team-mission");
+      const runDir = join(missionDir, "runs", context.runId);
+      await mkdir(runDir, { recursive: true });
+      await writeFile(join(runDir, "runtime-final.txt"), "worker complete\n", "utf-8");
+      await writeFile(join(runDir, "runtime-result.yaml"), [
+        "schema_version: uh.runtime-result.v0",
+        "mission_id: team-mission",
+        "runtime: oh-my-pi",
+        "status: passed",
+        "started_at: 2026-01-01T00:00:00.000Z",
+        "finished_at: 2026-01-01T00:00:01.000Z",
+        "exit_code: 0",
+        "prompt_path: prompt.md",
+        "stdout_path: stdout.log",
+        "stderr_path: stderr.log",
+        "diff_path: diff.patch",
+        "errors: []",
+        "provider: openai-codex",
+        "model: gpt-5.6-luna",
+        "usage:",
+        "  input_tokens: 10",
+        "  output_tokens: 2",
+        "  total_tokens: 12",
+        "  source: runtime",
+        "  provider: openai-codex",
+        "  model: gpt-5.6-luna",
+        "  cost_usd: 0.1",
+        "cost_usd: 0.1",
+      ].join("\n"), "utf-8");
+      await mkdir(join(workerRoot, "src"), { recursive: true });
+      await writeFile(join(workerRoot, "src", `${workerRoot.endsWith("backend") ? "a" : "b"}.ts`), "worker\n", "utf-8");
+      return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" }, runId: context.runId };
+    };
+    const verifier = (workerRoot: string, missionId: string) =>
+      verifyMission(workerRoot, missionId, { useSandbox: false });
+
+    const result = await runTeamMission(mission("team-mission"), ROOT, {
+      runnerFor: runner,
+      verifier,
+      retainOnSuccess: false,
+    });
+
+    expect(result.status).toBe("passed");
+    expect(result.retained).toBe(false);
+    expect(result.verification).toMatchObject({ status: "passed", checks_total: 1, checks_passed: 1 });
+    expect(result.runId).toBeTypeOf("string");
+    expect(contexts).toHaveLength(2);
+    expect(new Set(contexts.map((context) => context.artifactRoot)).size).toBe(2);
+    for (const context of contexts) {
+      await readFile(join(context.artifactRoot, ".harness", "missions", "team-mission", "runs", context.runId, "runtime-result.yaml"), "utf-8");
+    }
+    const parentRunDir = join(ROOT, ".harness", "missions", "team-mission", "runs", result.runId!);
+    const state = JSON.parse(await readFile(join(parentRunDir, "team-state.json"), "utf-8"));
+    expect(state).toMatchObject({ mission_id: "team-mission", status: "passed", run_id: result.runId });
+    expect(state.workers).toHaveLength(2);
+
+    const latest = JSON.parse(await readFile(join(ROOT, ".harness", "missions", "team-mission", "latest.json"), "utf-8"));
+    expect(latest).toMatchObject({ run_id: result.runId, status: "passed" });
+    const index = JSON.parse(await readFile(join(ROOT, ".harness", "missions", "team-mission", "runs", "index.json"), "utf-8"));
+    expect(index.runs.filter((entry: { run_id: string }) => entry.run_id === result.runId)).toHaveLength(1);
+    const snapshot = await projectDeliveryObservatory(ROOT, { now: "2026-01-01T00:00:02.000Z" });
+    expect(snapshot.work_items[0]).toMatchObject({
+      operation: "succeeded",
+      phase: "verify",
+      resolved_model: { state: "known", value: "gpt-5.6-luna" },
+      provider: { state: "known", value: "openai-codex" },
+      tokens: { state: "known", value: 24 },
+      cost: { state: "known", value: 0.2 },
+    });
+    expect(snapshot.agents.filter((agent) => agent.operation === "succeeded")).toHaveLength(3);
+  });
 });
diff --git a/tests/team-salvage.test.ts b/tests/team-salvage.test.ts
new file mode 100644
index 0000000..05fc706
--- /dev/null
+++ b/tests/team-salvage.test.ts
@@ -0,0 +1,395 @@
+/**
+ * Team salvage — keep verified work from a worker that ran out of budget.
+ *
+ * A worker whose run ends as `failed` is normally skipped by the leader, even
+ * when its worktree holds a complete change that passes its own checks. When
+ * the stop code means the worker ran out of budget or was halted by safety
+ * (`turn_limit`, `timeout`, `deadline`, `stall`, `policy`) AND its worktree has
+ * changes outside the protected roots, `runTeamMission` re-evaluates its
+ * declared outputs and its `verification.required_checks` and records a
+ * `salvage` result. The branch is committed only when both pass — and the
+ * leader still never merges a failed worker automatically.
+ *
+ * These tests use the same fake-runner / fake-gitOps pattern as
+ * `tests/team-run.test.ts`, extended with a `dirtyPaths` probe so a stopped
+ * worker's unsettled worktree can be inspected.
+ */
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { execFile } from "node:child_process";
+import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { basename, join } from "node:path";
+import { promisify } from "node:util";
+import {
+  runTeamMission,
+  type GitOps,
+  type MergeOutcome,
+  type TeamMission,
+  type TeamRuntimeContext,
+  type TeamRuntimeRunResult,
+  type VerifyMissionLike,
+} from "../src/harness/team-run.js";
+
+const execFileP = promisify(execFile);
+
+let ROOT: string;
+
+async function git(root: string, args: string[]): Promise<string> {
+  const { stdout } = await execFileP("git", ["-C", root, ...args]);
+  return stdout;
+}
+
+async function initGitRepo(root: string): Promise<void> {
+  await git(root, ["init", "-q", "-b", "main"]);
+  await git(root, ["config", "user.email", "test@example.com"]);
+  await git(root, ["config", "user.name", "Test"]);
+  await git(root, ["config", "commit.gpgsign", "false"]);
+  await git(root, ["config", "core.autocrlf", "false"]);
+  await writeFile(join(root, "README.md"), "# seed\n", "utf-8");
+  await git(root, ["add", "-A"]);
+  await git(root, ["commit", "-q", "-m", "seed"]);
+}
+
+async function seedMissionPacket(root: string, missionId: string): Promise<void> {
+  const dir = join(root, ".harness", "missions", missionId);
+  await mkdir(dir, { recursive: true });
+  const yaml = [
+    "schema_version: uh.mission.v0",
+    `id: ${missionId}`,
+    "title: Team Mission",
+    "workflow_profile: staged",
+    "objective: integrate worker fan-out",
+  ].join("\n") + "\n";
+  await writeFile(join(dir, "mission.yaml"), yaml, "utf-8");
+}
+
+function mission(id: string, workerOverrides: Partial<TeamMission["team"]["workers"][number]> = {}): TeamMission {
+  return {
+    id,
+    team: {
+      workers: [{ role: "backend", adapter: "hermes", ...workerOverrides }],
+      leader: { adapter: "hermes" },
+    },
+  };
+}
+
+const PASSING: VerifyMissionLike = {
+  status: "passed",
+  path: "/fake/verification.yaml",
+  checks_total: 1, checks_passed: 1, checks_failed: 0, checks_blocked: 0,
+  acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+};
+
+const FAILING: VerifyMissionLike = {
+  status: "failed",
+  path: "/fake/verification.yaml",
+  checks_total: 1, checks_passed: 0, checks_failed: 1, checks_blocked: 0,
+  acceptance_total: 0, acceptance_passed: 0, acceptance_failed_block: 0, acceptance_warn_failed: 0, acceptance_blocked: 0,
+};
+
+/** The leader's own verification always passes; the worker worktree answers `workerResult`. */
+function verifierFor(workerResult: VerifyMissionLike) {
+  return async (root: string): Promise<VerifyMissionLike> => basename(root) === "leader" ? PASSING : workerResult;
+}
+
+interface FakeRepo {
+  branches: Set<string>;
+  /** worktreePath -> relative paths the worker left unsettled */
+  dirty: Map<string, string[]>;
+  commits: Array<{ cwd: string; message: string }>;
+  merges: string[];
+}
+
+function emptyRepo(): FakeRepo {
+  return { branches: new Set(["HEAD"]), dirty: new Map(), commits: [], merges: [] };
+}
+
+function fakeGitOps(repo: FakeRepo): GitOps {
+  return {
+    async addWorktree(_root, branch, worktreePath) {
+      if (repo.branches.has(branch)) throw new Error(`branch exists: ${branch}`);
+      repo.branches.add(branch);
+      await mkdir(worktreePath, { recursive: true });
+    },
+    async removeWorktree() { /* no-op */ },
+    async merge(_cwd, branch): Promise<MergeOutcome> {
+      repo.merges.push(branch);
+      return { conflicted: false, conflictPaths: [], note: `merged ${branch}` };
+    },
+    async diffFiles() { return []; },
+    async deleteBranch(_root, branch) { repo.branches.delete(branch); },
+    async commitAll(cwd, message) { repo.commits.push({ cwd, message }); },
+    async dirtyPaths(cwd) { return [...(repo.dirty.get(cwd) ?? [])]; },
+  };
+}
+
+interface WorkerScript {
+  /** Files written into the worker worktree, relative to its root. */
+  files: Record<string, string>;
+  /** Stop code to record on the worker's runtime control receipt. */
+  stopCode?: string;
+  /** Optional stop reason to record alongside the stop code. */
+  stopReason?: string;
+}
+
+/** Mirror of the team-run fake runner, plus a control-receipt writer. */
+function makeRunner(scripts: Record<string, WorkerScript>, repo: FakeRepo) {
+  return (_adapter: string) =>
+    async (_runtime: string, root: string, _missionPath: string, context: TeamRuntimeContext): Promise<TeamRuntimeRunResult> => {
+      const script = scripts[basename(root)];
+      if (!script) {
+        return { exitCode: 0, stdout: "", stderr: "", result: { status: "passed" } };
+      }
+      for (const [rel, content] of Object.entries(script.files)) {
+        const target = join(root, rel);
+        await mkdir(join(target, ".."), { recursive: true });
+        await writeFile(target, content, "utf-8");
+      }
+      repo.dirty.set(root, Object.keys(script.files));
+      if (script.stopCode) {
+        const missionId = context.missionId ?? "team-mission";
+        const runDir = join(context.artifactRoot, ".harness", "missions", missionId, "runs", context.runId);
+        await mkdir(runDir, { recursive: true });
+        await writeFile(join(runDir, "runtime-control.json"), JSON.stringify({
+          schema_version: "uh.runtime-control.v0",
+          mission_id: missionId,
+          run_id: context.runId,
+          runtime: "hermes",
+          controller_pid: 4242,
+          started_at: "2026-01-01T00:00:00.000Z",
+          heartbeat_at: "2026-01-01T00:00:01.000Z",
+          status: "failed",
+          stop_code: script.stopCode,
+          ...(script.stopReason !== undefined ? { stop_reason: script.stopReason } : {}),
+          turns: 3,
+          denials: 0,
+          inflight_tools: 0,
+        }), "utf-8");
+      }
+      return { exitCode: 1, stdout: "", stderr: "", result: { status: "failed" } };
+    };
+}
+
+async function readState(root: string, runId: string): Promise<{
+  workers: Array<{ id: string; status: string; salvage?: Record<string, unknown> }>;
+}> {
+  return JSON.parse(await readFile(join(root, ".harness", "missions", "team-mission", "runs", runId, "team-state.json"), "utf-8"));
+}
+
+beforeEach(async () => {
+  ROOT = await mkdtemp(join(tmpdir(), "uh-team-salvage-"));
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+describe("team salvage", () => {
+  test("a worker that writes a valid change then reports turn_limit is salvaged: committed, not merged, listed", async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+    const repo = emptyRepo();
+    const runner = makeRunner({
+      backend: { files: { "out/artifact.txt": "complete\n" }, stopCode: "turn_limit" },
+    }, repo);
+
+    const result = await runTeamMission(mission("team-mission", { expected_outputs: { files: ["out/artifact.txt"] } }), ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo),
+      verifier: verifierFor(PASSING),
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    expect(backend.salvage).toEqual({
+      eligible: true,
+      outputs_passed: true,
+      checks_passed: true,
+      branch: backend.plan.branch,
+    });
+
+    // Committed to the worker branch with the existing hygiene, but never merged.
+    expect(repo.commits.some((commit) => commit.cwd === backend.plan.worktreePath)).toBe(true);
+    expect(repo.merges).not.toContain(backend.plan.branch);
+    expect(backend.integrated).toBe(false);
+
+    // Recorded on the canonical worker entry.
+    const state = await readState(ROOT, result.runId!);
+    expect(state.workers[0].salvage).toEqual({
+      eligible: true,
+      outputs_passed: true,
+      checks_passed: true,
+      branch: backend.plan.branch,
+    });
+
+    // A team with a failed worker is still not passed.
+    expect(result.status).not.toBe("passed");
+
+    // The report surfaces the stopped worker's branch + stop code for a human.
+    const report = await readFile(result.integrationReportPath, "utf-8");
+    expect(report).toContain("## Verified work from stopped workers");
+    expect(report).toContain("turn_limit");
+    expect(report).toContain(backend.plan.branch);
+  });
+
+  test("a worker stopped by the native turn cap with a green tree is salvage eligible", async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+    const repo = emptyRepo();
+    // The receipt shape the supervision fix writes when a native runtime ends
+    // on its own turn cap: stop_code turn_limit plus the native stop reason.
+    const runner = makeRunner({
+      backend: {
+        files: { "out/artifact.txt": "complete\n" },
+        stopCode: "turn_limit",
+        stopReason: "Native turn cap (max_turns) reached after 3 turns",
+      },
+    }, repo);
+
+    const result = await runTeamMission(mission("team-mission", { expected_outputs: { files: ["out/artifact.txt"] } }), ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo),
+      verifier: verifierFor(PASSING),
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    expect(backend.stopCode).toBe("turn_limit");
+    expect(backend.salvage).toEqual({
+      eligible: true,
+      outputs_passed: true,
+      checks_passed: true,
+      branch: backend.plan.branch,
+    });
+    expect(repo.commits.some((commit) => commit.cwd === backend.plan.worktreePath)).toBe(true);
+    expect(repo.merges).not.toContain(backend.plan.branch);
+    expect(backend.integrated).toBe(false);
+  });
+
+  test("a stopped worker whose checks fail is eligible but produces no commit", async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+    const repo = emptyRepo();
+    const runner = makeRunner({
+      backend: { files: { "out/artifact.txt": "complete\n" }, stopCode: "turn_limit" },
+    }, repo);
+
+    const result = await runTeamMission(mission("team-mission", { expected_outputs: { files: ["out/artifact.txt"] } }), ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo),
+      verifier: verifierFor(FAILING),
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    expect(backend.salvage).toEqual({
+      eligible: true,
+      outputs_passed: true,
+      checks_passed: false,
+      branch: backend.plan.branch,
+    });
+
+    expect(repo.commits).toHaveLength(0);
+    expect(repo.merges).not.toContain(backend.plan.branch);
+
+    const state = await readState(ROOT, result.runId!);
+    expect(state.workers[0].salvage).toMatchObject({ eligible: true, checks_passed: false });
+  });
+
+  test("a worker stopped with route_mismatch is not evaluated and gets no salvage record", async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+    const repo = emptyRepo();
+    const runner = makeRunner({
+      backend: { files: { "out/artifact.txt": "complete\n" }, stopCode: "route_mismatch" },
+    }, repo);
+
+    const result = await runTeamMission(mission("team-mission", { expected_outputs: { files: ["out/artifact.txt"] } }), ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo),
+      verifier: verifierFor(PASSING),
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    expect(backend.salvage).toBeUndefined();
+    expect(repo.commits).toHaveLength(0);
+
+    const state = await readState(ROOT, result.runId!);
+    expect(state.workers[0].salvage).toBeUndefined();
+  });
+
+  test("a worker that touched only protected paths is not eligible and is not committed", async () => {
+    await seedMissionPacket(ROOT, "team-mission");
+    const repo = emptyRepo();
+    const runner = makeRunner({
+      backend: { files: { ".commandcode/settings.json": "{}\n" }, stopCode: "turn_limit" },
+    }, repo);
+    const verifiedRoots: string[] = [];
+    const verifierSpy = async (root: string): Promise<VerifyMissionLike> => {
+      verifiedRoots.push(root);
+      return PASSING;
+    };
+
+    const result = await runTeamMission(mission("team-mission"), ROOT, {
+      runnerFor: runner,
+      gitOps: fakeGitOps(repo),
+      verifier: verifierSpy,
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.status).toBe("failed");
+    expect(backend.salvage).toEqual({
+      eligible: false,
+      outputs_passed: false,
+      checks_passed: false,
+      branch: backend.plan.branch,
+    });
+
+    // The worker worktree's checks were never run; only the leader was verified.
+    expect(verifiedRoots).not.toContain(backend.plan.worktreePath);
+    expect(repo.commits).toHaveLength(0);
+
+    const state = await readState(ROOT, result.runId!);
+    expect(state.workers[0].salvage).toMatchObject({ eligible: false });
+  });
+});
+
+describe("team salvage — real git (smoke)", () => {
+  test("default gitOps commits the stopped worker's branch with hygiene and leaves it unmerged", async () => {
+    await initGitRepo(ROOT);
+    await seedMissionPacket(ROOT, "team-mission");
+    await git(ROOT, ["add", "-A"]);
+    await git(ROOT, ["commit", "-q", "-m", "seed mission"]);
+
+    const repo = emptyRepo();
+    const runner = makeRunner({
+      backend: { files: { "out/artifact.txt": "complete\n" }, stopCode: "turn_limit" },
+    }, repo);
+
+    const result = await runTeamMission(mission("team-mission", { expected_outputs: { files: ["out/artifact.txt"] } }), ROOT, {
+      runnerFor: runner,
+      verifier: verifierFor(PASSING),
+      retainOnSuccess: true,
+    });
+
+    const backend = result.workers[0];
+    expect(backend.salvage).toEqual({
+      eligible: true,
+      outputs_passed: true,
+      checks_passed: true,
+      branch: backend.plan.branch,
+    });
+
+    // The default gitOps committed exactly the worker's own change, observed
+    // through real `git` (this exercises `dirtyPaths` + `commitAll`).
+    const changed = (await git(ROOT, ["diff", "--name-only", "HEAD", backend.plan.branch]))
+      .split(/\r?\n/).map((line) => line.trim()).filter(Boolean);
+    expect(changed).toEqual(["out/artifact.txt"]);
+
+    // Still not merged, and the team did not pass.
+    expect(backend.integrated).toBe(false);
+    expect(result.status).not.toBe("passed");
+  });
+});
diff --git a/tests/team-schema.test.ts b/tests/team-schema.test.ts
index 00023c6..3ac7ace 100644
--- a/tests/team-schema.test.ts
+++ b/tests/team-schema.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "vitest";
-import { validateMission, TEAM_ADAPTER_IDS } from "../src/schema/mission.js";
+import { validateMission } from "../src/schema/mission.js";
 
 const BASE = {
   schema_version: "uh.mission.v0",
@@ -9,20 +9,22 @@ const BASE = {
 };
 
 describe("mission shape: team", () => {
-  test("defaults shape to 'single' and design_path to 'design.md'", () => {
-    const m = validateMission(BASE);
-    expect(m.shape).toBe("single");
-    expect(m.design_path).toBe("design.md");
-    expect(m.team).toBeUndefined();
-  });
-
   test("accepts a valid team mission", () => {
     const m = validateMission({
       ...BASE,
       shape: "team",
       team: {
         workers: [
-          { adapter: "codex", role: "frontend" },
+          {
+            adapter: "codex",
+            role: "frontend",
+            mission_id: "frontend-mission",
+            objective: "Build the UI",
+            runtime_config_overrides: { model: "provider/model" },
+            limits: { max_turns: 4 },
+            expected_outputs: { files: ["out/ui.txt"] },
+            seed: 7,
+          },
           { adapter: "oh-my-pi", role: "backend", count: 2 },
         ],
         leader: { adapter: "hermes", role: "integrator" },
@@ -32,22 +34,14 @@ describe("mission shape: team", () => {
     expect(m.shape).toBe("team");
     expect(m.team?.workers).toHaveLength(2);
     expect(m.team?.workers[1].count).toBe(2);
+    expect(m.team?.workers[0].mission_id).toBe("frontend-mission");
+    expect(m.team?.workers[0].limits?.max_turns).toBe(4);
+    expect(m.team?.workers[0].expected_outputs?.files).toEqual(["out/ui.txt"]);
+    expect(m.team?.workers[0].seed).toBe(7);
     expect(m.team?.leader.adapter).toBe("hermes");
     expect(m.integration_report_path).toBe("integration-report.md");
   });
 
-  test("defaults worker.count to 1", () => {
-    const m = validateMission({
-      ...BASE,
-      shape: "team",
-      team: {
-        workers: [{ adapter: "codex", role: "solo" }],
-        leader: { adapter: "hermes" },
-      },
-    });
-    expect(m.team?.workers[0].count).toBe(1);
-  });
-
   test("rejects team shape without team.workers", () => {
     expect(() => validateMission({
       ...BASE,
@@ -112,10 +106,26 @@ describe("mission shape: team", () => {
       },
     })).toThrow();
   });
+  test("rejects per-worker memory limits with the team resource guidance", () => {
+    expect(() => validateMission({
+      ...BASE,
+      shape: "team",
+      team: {
+        workers: [{ adapter: "codex", role: "frontend", limits: { memory_mb: 128 } }],
+        leader: { adapter: "hermes" },
+      },
+    })).toThrow(/team\.resources\.worker_memory_mb/);
+  });
 
-  test("TEAM_ADAPTER_IDS exposes the registered runtimes", () => {
-    expect(new Set(TEAM_ADAPTER_IDS)).toEqual(
-      new Set(["hermes", "codex", "oh-my-pi", "hermes-proxy", "openrouter", "anthropic", "pi"]),
-    );
+  test("rejects unknown worker contract keys", () => {
+    expect(() => validateMission({
+      ...BASE,
+      shape: "team",
+      team: {
+        workers: [{ adapter: "codex", role: "frontend", unexpected: true }],
+        leader: { adapter: "hermes" },
+      },
+    })).toThrow();
   });
+
 });
diff --git a/tests/telemetry.test.ts b/tests/telemetry.test.ts
index ab2d9d4..8b4d2d8 100644
--- a/tests/telemetry.test.ts
+++ b/tests/telemetry.test.ts
@@ -195,6 +195,44 @@ describe("optional PostHog telemetry", () => {
     expect(called).toBe(false);
   });
 
+  test("normalizes and resolves bracketed IPv6 host correctly", async () => {
+    const calls: { host: string; options?: unknown }[] = [];
+    const mockLookup = async (host: string, options?: unknown) => {
+      calls.push({ host, options });
+      return [{ address: "2606:4700::1111", family: 6 as const }];
+    };
+    let fetchedUrl: URL | undefined;
+    const mockFetch = async (url: URL) => {
+      fetchedUrl = url;
+      return new Response(null, { status: 200 });
+    };
+    await captureCommandOutcome(
+      { enabled: true, apiKey: FIXTURE_API_KEY, host: "https://[2606:4700::1111]" },
+      { command: "uh status", status: "success", exitCode: 0, durationMs: 1, version: "1.2.3" },
+      mockFetch as unknown as typeof fetch,
+      mockLookup as unknown as typeof dnsLookup,
+    );
+    expect(calls).toHaveLength(1);
+    expect(calls[0].host).toBe("2606:4700::1111");
+    expect(fetchedUrl?.toString()).toBe("https://[2606:4700::1111]/capture/");
+  });
+
+  test("stalled DNS lookup times out gracefully", async () => {
+    const hangingLookup = () => new Promise<never>(() => {});
+    let fetched = false;
+    const mockFetch = async () => {
+      fetched = true;
+      return new Response(null, { status: 200 });
+    };
+    await captureCommandOutcome(
+      { enabled: true, apiKey: FIXTURE_API_KEY, host: "https://hanging.example.com" },
+      { command: "uh status", status: "success", exitCode: 0, durationMs: 1, version: "1.2.3" },
+      mockFetch as unknown as typeof fetch,
+      hangingLookup as unknown as typeof dnsLookup,
+    );
+    expect(fetched).toBe(false);
+  }, 5000);
+
   test("installTelemetryHooks adds no exit listener when telemetry is disabled", () => {
     const before = process.listenerCount("exit");
     // No opt-in env => disabled => must not register a process 'exit' beacon.
diff --git a/tests/tool-guard-agent-clients.test.ts b/tests/tool-guard-agent-clients.test.ts
new file mode 100644
index 0000000..bf5be6d
--- /dev/null
+++ b/tests/tool-guard-agent-clients.test.ts
@@ -0,0 +1,118 @@
+import { describe, expect, test } from "vitest";
+import { decideToolCall } from "../src/harness/tool-guard.js";
+import { resolveToolGuardPolicy } from "../src/schema/runtime-control.js";
+
+const root = "C:\\worker";
+const BS = "\\";
+const winShim = `& "C:${BS}Users${BS}me${BS}AppData${BS}Roaming${BS}npm${BS}omp.cmd" -p hi`;
+
+function classOf(command: string, policy = resolveToolGuardPolicy({}), options = {}) {
+  return decideToolCall(policy, "bash", { command }, root, options).deny?.class;
+}
+
+describe("agent-client denial: workers never spawn agents", () => {
+  test.each([
+    ["bare client", "omp --print hi"],
+    ["windows cmd shim", "codex.cmd exec hi"],
+    ["windows exe", "omp.exe -p hi"],
+    ["posix absolute path", "/usr/bin/codex exec hi"],
+    ["powershell call operator with quoted path", winShim],
+    ["claude cli", "claude -p hi"],
+    ["uh cli", "uh mission run m.yaml"],
+    ["uh cli script via node", "node dist/cli.js mission run-team x"],
+    ["uh cli script via bun with absolute path", "bun C:/repo/dist/cli.js mission run m.yaml"],
+    ["npx launcher", "npx codex exec hi"],
+    ["npx launcher with flag", "npx -y codex exec hi"],
+    ["bunx launcher", "bunx omp -p hi"],
+    ["pnpm dlx launcher", "pnpm dlx codex exec hi"],
+    ["env prefix", "env FOO=1 omp -p hi"],
+    ["inline assignment prefix", "FOO=1 omp -p hi"],
+    ["after chain", "cd src && omp -p hi"],
+    ["after pipe", "cat prompt.md | claude -p"],
+    ["command substitution", "echo $(omp -p hi)"],
+    ["backtick substitution", "echo `codex exec hi`"],
+    ["bash -c body", "bash -c \"omp -p hi\""],
+    ["powershell -Command body", "powershell -Command \"cmdc -p hi\""],
+    ["xargs", "cat prompts.txt | xargs omp -p"],
+    ["uppercase", "OMP -p hi"],
+  ])("denies %s", (_name, command) => {
+    expect(classOf(command)).toBe("agent_client");
+  });
+
+  test.each([
+    ["client name as grep pattern", "grep -r omp src"],
+    ["client name as file stem", "cat docs/codex.md"],
+    ["client name in a path argument", "ls src/adapters/codex.ts .omp"],
+    ["client name inside a quoted string", "echo \"run omp later\""],
+    ["ripgrep for the uh cli", "rg \"uh mission run\" docs"],
+    ["node running an unrelated script", "node scripts/build.js mission run"],
+    ["reading the cli bundle", "cat dist/cli.js"],
+    ["git log mentioning a client", "git log --grep codex"],
+  ])("allows %s", (_name, command) => {
+    expect(classOf(command)).toBeUndefined();
+  });
+
+  test("needs_network lifts network-client denial but never agent-client denial", () => {
+    const policy = resolveToolGuardPolicy({}, true);
+    expect(policy.deny_network_clients).toBe(false);
+    expect(classOf("curl https://example.invalid", policy)).toBeUndefined();
+    expect(classOf("omp -p hi", policy)).toBe("agent_client");
+    expect(classOf("claude -p hi", policy)).toBe("agent_client");
+    expect(classOf("uh mission run m.yaml", policy)).toBe("agent_client");
+  });
+
+  test("an explicit empty agent_clients list is the only opt-out", () => {
+    const policy = resolveToolGuardPolicy({ agent_clients: [] });
+    expect(classOf("omp -p hi", policy)).toBeUndefined();
+  });
+
+  test("a custom agent_clients list replaces the defaults", () => {
+    const policy = resolveToolGuardPolicy({ agent_clients: ["goose"] });
+    expect(classOf("goose run", policy)).toBe("agent_client");
+    expect(classOf("omp -p hi", policy)).toBeUndefined();
+  });
+
+  test("the orchestrator role still reaches the UH controller, and only that", () => {
+    const policy = resolveToolGuardPolicy({});
+    const orchestrator = { allowControllerCommands: true };
+    expect(classOf("uh mission run-team x", policy, orchestrator)).toBeUndefined();
+    expect(classOf("node dist/cli.js mission run m.yaml", policy, orchestrator)).toBeUndefined();
+    expect(classOf("omp -p hi", policy, orchestrator)).toBe("agent_client");
+    expect(classOf("uh mission run m.yaml --force", policy, orchestrator)).toBe("agent_client");
+    expect(classOf("uh mission run m.yaml && omp -p hi", policy, orchestrator)).toBe("agent_client");
+  });
+
+  test.each([
+    ["oh-my-pi task tool", "task", { context: "x", tasks: [{ name: "Review", agent: "reviewer", task: "review" }] }],
+    ["claude code Task tool", "Task", { subagent_type: "general-purpose", prompt: "x" }],
+    ["claude code Agent tool", "Agent", { subagent_type: "Explore", prompt: "x" }],
+    ["generic subagent tool", "subagent", { prompt: "x" }],
+  ])("denies the native sub-agent tool: %s", (_name, tool, input) => {
+    const denial = decideToolCall(resolveToolGuardPolicy({}), tool, input, root).deny;
+    expect(denial?.class).toBe("agent_client");
+    expect(denial?.reason).toMatch(/^CONTRACT: no sub-agents\./);
+    expect(denial?.reason).toContain("ESCALATE:");
+  });
+
+  test("native sub-agent tools stay denied when the mission needs network and for the orchestrator role", () => {
+    expect(decideToolCall(resolveToolGuardPolicy({}, true), "task", { tasks: [] }, root).deny?.class).toBe("agent_client");
+    expect(decideToolCall(resolveToolGuardPolicy({}), "Task", { prompt: "x" }, root, { allowControllerCommands: true }).deny?.class).toBe("agent_client");
+  });
+
+  test("bookkeeping tools with similar names are not sub-agent tools", () => {
+    for (const tool of ["todo", "TodoWrite", "TaskCreate", "TaskList", "hub"]) {
+      expect(decideToolCall(resolveToolGuardPolicy({}), tool, { op: "wait" }, root).deny).toBeUndefined();
+    }
+  });
+
+  test("an empty agent_clients list also lifts the native sub-agent denial", () => {
+    expect(decideToolCall(resolveToolGuardPolicy({ agent_clients: [] }), "task", { tasks: [] }, root).deny).toBeUndefined();
+  });
+
+  test("allow_native_subagents lifts only the native tool denial, never agent CLIs", () => {
+    const policy = resolveToolGuardPolicy({ allow_native_subagents: true });
+    expect(decideToolCall(policy, "task", { tasks: [] }, root).deny).toBeUndefined();
+    expect(classOf("omp -p hi", policy)).toBe("agent_client");
+    expect(classOf("uh mission run m.yaml", policy)).toBe("agent_client");
+  });
+});
diff --git a/tests/tool-guard-containment.test.ts b/tests/tool-guard-containment.test.ts
new file mode 100644
index 0000000..fda02ce
--- /dev/null
+++ b/tests/tool-guard-containment.test.ts
@@ -0,0 +1,110 @@
+import { describe, expect, test } from "vitest";
+import { decideToolCall } from "../src/harness/tool-guard.js";
+import { resolveToolGuardPolicy } from "../src/schema/runtime-control.js";
+
+const root = "C:\\worker";
+const BS = "\\";
+const schtasksShim = `& "C:${BS}Windows${BS}System32${BS}schtasks.exe" /create /tn Evil /tr cmd.exe`;
+
+function classOf(command: string, policy = resolveToolGuardPolicy({}), options: { allowControllerCommands?: boolean } = {}) {
+  return decideToolCall(policy, "bash", { command }, root, options).deny?.class;
+}
+
+describe("containment-escape denial: workers never leave the supervised process tree", () => {
+  test.each([
+    ["wmic process call create", `wmic process call create "cmd.exe /c evil"`],
+    ["wmic.exe", `wmic.exe process call create "cmd.exe /c evil"`],
+    ["wmic with a global switch first", `wmic /node:host process call create "cmd.exe /c evil"`],
+    ["uppercase wmic", `WMIC PROCESS CALL CREATE "cmd.exe /c evil"`],
+    ["wmic in a command substitution", `echo $(wmic process call create "cmd.exe /c evil")`],
+    ["wmic in a nested powershell body", `powershell -Command "wmic process call create cmd.exe"`],
+    ["wmic through a launcher", `sudo wmic process call create "cmd.exe /c evil"`],
+    ["invoke-cimmethod creating a process", `Invoke-CimMethod -ClassName Win32_Process -MethodName Create -Arguments @{ CommandLine = "cmd.exe /c evil" }`],
+    ["invoke-wmimethod creating a process", `Invoke-WmiMethod -Class Win32_Process -Name Create -ArgumentList "cmd.exe /c evil"`],
+    ["the wmiclass cast create form", `([wmiclass]"Win32_Process").Create("cmd.exe /c evil")`],
+    ["schtasks create", `schtasks /create /tn Evil /tr "cmd.exe /c evil"`],
+    ["schtasks.exe run", `schtasks.exe /run /tn Evil`],
+    ["schtasks after a chain", `cd src && schtasks /run /tn Evil`],
+    ["powershell call operator with quoted path", schtasksShim],
+    ["register-scheduledtask", `Register-ScheduledTask -TaskName Evil -Action (New-ScheduledTaskAction -Execute cmd.exe)`],
+    ["start-scheduledtask", `Start-ScheduledTask -TaskName Evil`],
+    ["sc create", `sc create EvilSvc binPath= "C:\\evil\\cmd.exe"`],
+    ["sc.exe start", `sc.exe start EvilSvc`],
+    ["new-service", `New-Service -Name EvilSvc -BinaryPathName "cmd.exe /c evil"`],
+    ["start-service", `Start-Service EvilSvc`],
+    ["setsid", `setsid sleep 1000`],
+    ["systemd-run", `systemd-run --user sleep 1000`],
+    ["nested bash body", `bash -c "systemd-run --user sleep 1000"`],
+    ["disown of a background job", `sleep 1000 & disown`],
+    ["at", `at 23:00 cmd.exe /c evil`],
+    ["batch", `echo work | batch`],
+    ["crontab edit", `crontab -e`],
+    ["crontab install", `crontab my-cron.txt`],
+    ["nohup with a background operator", `nohup cmd.exe /c evil &`],
+    ["nohup backgrounded after a chain", `cd src; nohup ./long-job &`],
+  ])("denies %s", (_name, command) => {
+    expect(classOf(command)).toBe("containment_escape");
+  });
+
+  test.each([
+    ["get-ciminstance reading the process class", `Get-CimInstance Win32_Process`],
+    ["invoke-cimmethod with a different method", `Invoke-CimMethod -ClassName Win32_Process -MethodName GetOwner`],
+    ["invoke-cimmethod with a different class", `Invoke-CimMethod -ClassName Win32_Service -MethodName Create`],
+    ["schtasks query", `schtasks /query /fo LIST`],
+    ["sc query", `sc query EvilSvc`],
+    ["crontab -l", `crontab -l`],
+    ["crontab -l through a pipe", `crontab -l | grep build`],
+    ["get-service", `Get-Service EvilSvc`],
+    ["nohup without a background operator", `nohup sleep 1000`],
+    ["nohup before a sequential chain", `nohup sleep 1000 && echo done`],
+    ["a background operator that does not background nohup", `echo hi & nohup sleep 1000`],
+    ["scheduler name as a grep pattern", `grep -r setsid src`],
+    ["scheduler name inside a quoted search", `rg "wmic process" docs`],
+    ["tool name as a file stem", `cat docs/schtasks.md`],
+    ["subcommand name as a search pattern", `grep -rn "sc create" src`],
+    ["name in a path argument", `ls docs/systemd-run.md`],
+    ["wmiclass cast quoted for reading", `grep "\\[wmiclass\\]" src`],
+    ["at as a bare word argument", `grep -w at notes.md`],
+  ])("allows %s", (_name, command) => {
+    expect(classOf(command)).toBeUndefined();
+  });
+
+  test("needs_network lifts network-client denial but never the containment denial", () => {
+    const policy = resolveToolGuardPolicy({}, true);
+    expect(policy.deny_network_clients).toBe(false);
+    expect(classOf("curl https://example.invalid", policy)).toBeUndefined();
+    expect(classOf("schtasks /create /tn Evil /tr cmd.exe", policy)).toBe("containment_escape");
+    expect(classOf("wmic process call create cmd.exe", policy)).toBe("containment_escape");
+  });
+
+  test("an empty agent_clients list lifts agent denial but never the containment denial", () => {
+    const policy = resolveToolGuardPolicy({ agent_clients: [] });
+    expect(classOf("omp -p hi", policy)).toBeUndefined();
+    expect(classOf("wmic process call create cmd.exe", policy)).toBe("containment_escape");
+  });
+
+  test("allow_native_subagents lifts only the native tool denial, never the containment denial", () => {
+    const policy = resolveToolGuardPolicy({ allow_native_subagents: true });
+    expect(decideToolCall(policy, "task", { tasks: [] }, root).deny).toBeUndefined();
+    expect(classOf("setsid sleep 1000", policy)).toBe("containment_escape");
+  });
+
+  test("the containment denial applies to the orchestrator role too", () => {
+    const policy = resolveToolGuardPolicy({});
+    const orchestrator = { allowControllerCommands: true };
+    expect(classOf("uh mission run-team x", policy, orchestrator)).toBeUndefined();
+    expect(classOf("schtasks /create /tn Evil /tr cmd.exe", policy, orchestrator)).toBe("containment_escape");
+    expect(classOf("nohup ./long-job &", policy, orchestrator)).toBe("containment_escape");
+  });
+
+  test("the denial reason names the supervised process tree and ends with the common suffix", () => {
+    const denial = decideToolCall(resolveToolGuardPolicy({}), "bash", { command: "schtasks /create /tn Evil /tr cmd.exe" }, root).deny;
+    expect(denial?.class).toBe("containment_escape");
+    expect(denial?.reason).toMatch(/^CONTRACT: no launches outside the supervised process tree\./);
+    expect(denial?.reason).toMatch(/Do not retry this by another route; record it in your final message and continue with the rest of the task\.$/);
+  });
+
+  test("powershell tool calls are judged the same way as bash", () => {
+    expect(decideToolCall(resolveToolGuardPolicy({}), "powershell", { command: "Register-ScheduledTask -TaskName Evil" }, root).deny?.class).toBe("containment_escape");
+  });
+});
diff --git a/tests/tool-guard-cwd.test.ts b/tests/tool-guard-cwd.test.ts
new file mode 100644
index 0000000..7756943
--- /dev/null
+++ b/tests/tool-guard-cwd.test.ts
@@ -0,0 +1,59 @@
+import { afterEach, describe, expect, test } from "vitest";
+import { decideToolCall } from "../src/harness/tool-guard.js";
+import { resolveToolGuardPolicy } from "../src/schema/runtime-control.js";
+
+const workerRoot = "C:\\repo\\.harness\\w\\x";
+const policy = {
+  ...resolveToolGuardPolicy({ write_roots: ["src/harness", "out"] }),
+  protected_paths: [],
+};
+
+const originalPolicyPath = process.env.UH_TOOL_GUARD_POLICY;
+const originalLogPath = process.env.UH_TOOL_GUARD_LOG;
+
+afterEach(() => {
+  if (originalPolicyPath === undefined) delete process.env.UH_TOOL_GUARD_POLICY;
+  else process.env.UH_TOOL_GUARD_POLICY = originalPolicyPath;
+  if (originalLogPath === undefined) delete process.env.UH_TOOL_GUARD_LOG;
+  else process.env.UH_TOOL_GUARD_LOG = originalLogPath;
+});
+
+function classOf(command: string, fields: Record<string, unknown> = {}) {
+  return decideToolCall(policy, "shell_command", { command, ...fields }, workerRoot).deny?.class;
+}
+
+describe("tool guard effective working directory", () => {
+  test.each([
+    ["quoted powershell changes the real directory", `cd "C:\\repo" && powershell -Command "(Get-Content src/a.ts -Raw) -replace 'x','y' | Set-Content src/a.ts -NoNewline"`, "write_outside"],
+    ["cd parent escapes the worker root", "cd .. && echo x > src/a.ts", "write_outside"],
+    ["pushd outside then Set-Content", "pushd C:\\other; Set-Content a.txt y", "write_outside"],
+    ["unresolved environment directory", "Set-Location $env:TEMP; Set-Content a.txt y", "write_outside"],
+    ["variable assigned from environment remains unresolved", "$d=$env:TEMP; cd $d; Set-Content a.txt y", "write_outside"],
+    ["nested bash body tracks directory", "bash -c \"cd C:\\\\other && echo x > out/a.txt\"", "write_outside"],
+    ["explicit cwd outside the root", "echo x > out/a.txt", "write_outside", { cwd: "C:\\other" }],
+    ["delete follows cd", "cd C:\\other && Remove-Item out/a.txt", "delete_outside"],
+    ["copy follows cd", "cd C:\\other && Copy-Item source.txt out/a.txt", "write_outside"],
+  ] as const)("denies %s", (_name, command, expected, fields: Record<string, unknown> | undefined = undefined) => {
+    expect(classOf(command, fields ?? {})).toBe(expected);
+  });
+
+  test.each([
+    ["cd into a write root", "cd src && echo x > harness/a.ts"],
+    ["read after changing directory", "cd C:\\other && type file.txt"],
+    ["popd restores the worker directory", "pushd C:\\other; popd; Set-Content out/a.txt y"],
+  ] as const)("allows %s", (_name, command) => {
+    expect(classOf(command)).toBeUndefined();
+  });
+});
+
+describe("tool guard tamper denial", () => {
+  test.each([
+    ["policy path from the environment", "Set-Content C:\\private\\guard-policy.json y", "C:\\private\\guard-policy.json", undefined],
+    ["state directory anywhere on disk", "Set-Content C:\\any\\where\\.harness\\x y", undefined, undefined],
+    ["log path from the environment through a redirect", "echo x > C:\\private\\guard-log.json", undefined, "C:\\private\\guard-log.json"],
+  ] as const)("denies %s as tamper", (_name, command, policyPath, logPath) => {
+    if (policyPath) process.env.UH_TOOL_GUARD_POLICY = policyPath;
+    if (logPath) process.env.UH_TOOL_GUARD_LOG = logPath;
+    expect(classOf(command)).toBe("guard_tamper");
+  });
+});
diff --git a/tests/tool-guard.test.ts b/tests/tool-guard.test.ts
new file mode 100644
index 0000000..f5035f7
--- /dev/null
+++ b/tests/tool-guard.test.ts
@@ -0,0 +1,101 @@
+import { describe, expect, test } from "vitest";
+import { decideToolCall } from "../src/harness/tool-guard.js";
+import { resolveToolGuardPolicy } from "../src/schema/runtime-control.js";
+import { RuntimeSupervision } from "../src/harness/runtime-supervision.js";
+
+const root = "C:\\worker";
+const policy = { ...resolveToolGuardPolicy({ write_roots: ["out"], agent_clients: ["omp", "cmdc"] }), protected_paths: [".harness", ".commandcode", ".omp", ".pi", ".git"] };
+function decision(tool: string, input: unknown) { return decideToolCall(policy, tool, input, root).deny; }
+
+describe("per-tool guard", () => {
+  test.each([
+    ["in-scope write", "write_file", { file_path: "out/report.md", content: "T:/forbidden" }, undefined],
+    ["report content is blind", "write_file", { file_path: "out/report.md", content: "Do not retry; C:/private-project/docs" }, undefined],
+    ["outside write", "write_file", { file_path: "src/x.ts", content: "x" }, "write_outside"],
+    ["protected write", "write_file", { file_path: ".harness/x", content: "x" }, "protected_root"],
+    ["absolute outside write", "write_file", { file_path: "C:\\other\\x", content: "x" }, "write_outside"],
+    ["git status", "shell_command", { command: "git status C:/forbidden" }, undefined],
+    ["git diff", "shell_command", { command: "git diff C:/forbidden" }, undefined],
+    ["git commit", "shell_command", { command: "git commit -am x" }, "git_mutation"],
+    ["pip install", "shell_command", { command: "pip install foo" }, "package_install"],
+    ["npm install", "shell_command", { command: "npm install foo" }, "package_install"],
+    ["curl", "shell_command", { command: "curl https://example.invalid" }, "network_client"],
+    ["agent client", "shell_command", { command: "omp -p hello" }, "agent_client"],
+    ["delete in root", "shell_command", { command: "rm -rf out/tmp" }, undefined],
+    ["delete outside", "shell_command", { command: "rm -rf /" }, "delete_outside"],
+    ["powershell protected", "shell_command", { command: 'powershell -Command "Set-Content .harness/x y"' }, "protected_root"],
+    ["copy destination in root", "shell_command", { command: "Copy-Item src/x -Destination out/x" }, undefined],
+    ["copy destination outside", "shell_command", { command: "Copy-Item out/x -Destination C:/other/x" }, "write_outside"],
+    ["redirect in root", "shell_command", { command: "echo x > out/x" }, undefined],
+    ["redirect protected", "shell_command", { command: "echo x > .commandcode/settings.json" }, "protected_root"],
+    ["null redirect", "shell_command", { command: "echo x > nul" }, undefined],
+    ["get content forbidden", "shell_command", { command: "Get-Content C:/forbidden/x" }, undefined],
+    ["cat forbidden", "shell_command", { command: "cat C:/forbidden/x" }, undefined],
+    ["ls forbidden", "shell_command", { command: "ls C:/forbidden" }, undefined],
+    ["piped delete root", "shell_command", { command: "Get-ChildItem out/tmp -File | Remove-Item -Force" }, undefined],
+    ["piped delete outside", "shell_command", { command: "Get-ChildItem C:/forbidden -File | Remove-Item -Force" }, "delete_outside"],
+    ["kill", "shell_command", { command: "taskkill /F /IM python.exe" }, "kill_or_format"],
+    ["format", "shell_command", { command: "format C:" }, "kill_or_format"],
+  ] as const)("%s", (_name, tool, input, expected) => {
+    expect(decision(tool, input)?.class).toBe(expected);
+  });
+
+  test("every denial reason includes substitute-action suffix", () => {
+    const denial = decision("shell_command", { command: "git commit -m x" });
+    expect(denial?.reason).toMatch(/Do not retry this by another route; record it in your final message and continue with the rest of the task\.$/);
+  });
+  test.each([
+    ["python code read/remove", "shell_command", { command: "python -c \"import os; os.remove(r'C:\\x')\" && echo done" }, undefined],
+    ["write commandcode redirect", "shell_command", { command: "python -c \"print(1)\" > .commandcode\\settings.json" }, "protected_root"],
+    ["quoted redirect content", "shell_command", { command: "echo \"a > b\" | Out-File out\\x.txt" }, undefined],
+    ["delete outside child items", "shell_command", { command: "Get-ChildItem C:\\forbidden -File | Remove-Item -Force" }, "delete_outside"],
+    ["delete multiple in root", "shell_command", { command: "Remove-Item out\\reference\\a.csv,out\\reference\\b.csv -ErrorAction SilentlyContinue" }, undefined],
+    ["delete mixed targets", "shell_command", { command: "Remove-Item out\\a.csv,C:\\forbidden\\b.csv -ErrorAction SilentlyContinue" }, "delete_outside"],
+    ["delete protected root", "shell_command", { command: "Remove-Item -Recurse -Force .commandcode" }, "protected_root"],
+    ["batch copy root", "shell_command", { command: "set SRC=C:\\source && mkdir out 2>nul & xcopy /E /I /Y \"%SRC%\\episodes\" \"out\\episodes\" & dir out >nul 2>&1" }, undefined],
+    ["external redirect", "shell_command", { command: "python x.py > C:\\log.txt" }, "write_outside"],
+    ["copy external source root destination", "shell_command", { command: "Copy-Item -Path C:\\source\\x.csv -Destination out\\x.csv" }, undefined],
+    ["copy external destination", "shell_command", { command: "Copy-Item -Path out\\x.csv -Destination C:\\forbidden\\x.csv" }, "write_outside"],
+    ["out-file external", "shell_command", { command: "\"a\" | Out-File -FilePath C:\\x.txt" }, "write_outside"],
+    ["powershell delete outside", "shell_command", { command: "powershell -Command \"$d='C:\\\\forbidden'; Remove-Item -Recurse $d\"" }, "delete_outside"],
+    ["copy external", "shell_command", { command: "copy out\\a.csv C:\\forbidden\\b.csv" }, "write_outside"],
+    ["git commit path", "shell_command", { command: "git -C C:/other commit -am x" }, "git_mutation"],
+    ["agent command", "shell_command", { command: "omp -p hello" }, "agent_client"],
+    ["credential read", "read_file", { file_path: "C:\\Users\\example\\.claude\\.credentials.json" }, undefined],
+    ["drive relative outside write", "write_file", { file_path: "C:..\\secret.txt", content: "x" }, "write_outside"],
+  ] as const)("ported launcher case: %s", (_name, tool, input, expected) => {
+    expect(decision(tool, input)?.class).toBe(expected);
+  });
+
+  test("oh-my-pi native guard errors count as denials only for CONTRACT text", () => {
+    const run = new RuntimeSupervision({ max_denials: 2 }, 0);
+    run.observe({ type: "tool_execution_start", tool: "bash", command: "git commit -m x", id: "one" }, 1);
+    run.observe({ type: "tool_execution_end", id: "one", isError: true, result: "CONTRACT: no git mutations; the harness commits for you." }, 2);
+    run.observe({ type: "tool_execution_start", tool: "bash", command: "python broken.py", id: "two" }, 3);
+    run.observe({ type: "tool_execution_end", id: "two", isError: true, result: "ordinary tool failure" }, 4);
+    expect(run.denials).toBe(1);
+    expect(run.stopReason).toBeUndefined();
+  });
+
+  test("oh-my-pi native guard errors enforce denial budget once per call", () => {
+    const run = new RuntimeSupervision({ max_denials: 2 }, 0);
+    const reason = "CONTRACT: no git mutations; the harness commits for you.";
+    run.observe({ type: "tool_execution_start", tool: "bash", command: "git commit -m x", id: "one" }, 1);
+    run.observe({ type: "tool_execution_end", id: "one", isError: true, result: reason }, 2);
+    run.observe({ type: "tool_execution_end", id: "one", isError: true, result: reason }, 3);
+    run.observe({ type: "tool_execution_start", tool: "bash", command: "git commit -m y", id: "two" }, 4);
+    run.observe({ type: "tool_execution_end", id: "two", isError: true, result: reason }, 5);
+    expect(run.denials).toBe(2);
+    expect(run.stopReason).toBe("denial_budget");
+    expect(run.failure).toMatch(/bash git commit -m y/);
+  });
+});
+  test("read-only git log grep text is allowed while git commit is denied", () => {
+    expect(decision("shell_command", { command: "git log --grep=commit" })).toBeUndefined();
+    expect(decision("shell_command", { command: "git commit -am x" })?.class).toBe("git_mutation");
+  });
+
+test("posix filesystem root write root allows subpaths", () => {
+  const posixPolicy = { ...resolveToolGuardPolicy({ write_roots: ["."] }), protected_paths: [] };
+  expect(decideToolCall(posixPolicy, "write_file", { file_path: "/tmp/allowed.txt", content: "x" }, "/").deny).toBeUndefined();
+});
diff --git a/tests/tui-model.test.ts b/tests/tui-model.test.ts
index 2068f05..1b40513 100644
--- a/tests/tui-model.test.ts
+++ b/tests/tui-model.test.ts
@@ -1,5 +1,7 @@
-import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { describe, test, expect, beforeEach, afterEach, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, utimes } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import {
   loadAdapters,
@@ -10,7 +12,7 @@ import {
   loadMissionDetail,
 } from "../src/tui/model.js";
 
-const TEST_ROOT = "/tmp/uh-test-tui-model";
+const TEST_ROOT = mkdtempSync(join(tmpdir(), "uh-test-tui-model-"));
 const HARNESS = join(TEST_ROOT, ".harness");
 
 async function cleanup() {
@@ -19,6 +21,7 @@ async function cleanup() {
 
 beforeEach(cleanup);
 afterEach(cleanup);
+afterAll(cleanup);
 
 async function seedAdapters() {
   await mkdir(join(HARNESS, "adapters"), { recursive: true });
@@ -165,13 +168,14 @@ describe("tui/model loadSandboxes", () => {
   });
 
   test("returns rows for valid entries", async () => {
+    const sbxPath = join(HARNESS, "sandboxes", "sbx-1", "worktree");
     await seedSandboxIndex([
       "sandboxes:",
       "  - id: sbx-1",
       "    mission_id: m-1",
       "    backend: git-worktree",
       "    status: created",
-      "    path: /tmp/uh-test-tui-model/.harness/sandboxes/sbx-1/worktree",
+      `    path: ${sbxPath}`,
     ].join("\n"));
     const rows = await loadSandboxes(TEST_ROOT);
     expect(rows).toEqual([
@@ -180,7 +184,7 @@ describe("tui/model loadSandboxes", () => {
         missionId: "m-1",
         backend: "git-worktree",
         status: "created",
-        worktreePath: "/tmp/uh-test-tui-model/.harness/sandboxes/sbx-1/worktree",
+        worktreePath: sbxPath,
       },
     ]);
   });
diff --git a/tests/tui-persistence.test.ts b/tests/tui-persistence.test.ts
index 03f1805..ccc74ab 100644
--- a/tests/tui-persistence.test.ts
+++ b/tests/tui-persistence.test.ts
@@ -1,5 +1,7 @@
-import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { describe, test, expect, beforeEach, afterEach, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, readFile, writeFile } from "node:fs/promises";
+import { homedir, tmpdir } from "node:os";
 import path from "node:path";
 import {
   createFilePersistenceStore,
@@ -7,7 +9,7 @@ import {
   resolveDefaultConfigDir,
 } from "../src/tui/persistence.js";
 
-const TMP_ROOT = "/tmp/uh-test-tui-persistence";
+const TMP_ROOT = mkdtempSync(path.join(tmpdir(), "uh-test-tui-persistence-"));
 
 async function reset() {
   try { await rm(TMP_ROOT, { recursive: true, force: true }); } catch {}
@@ -16,14 +18,15 @@ async function reset() {
 
 beforeEach(reset);
 afterEach(async () => { try { await rm(TMP_ROOT, { recursive: true, force: true }); } catch {} });
+afterAll(async () => { try { await rm(TMP_ROOT, { recursive: true, force: true }); } catch {} });
 
 describe("tui/persistence resolveDefaultConfigDir", () => {
   test("prefers XDG_CONFIG_HOME when set", () => {
-    expect(resolveDefaultConfigDir({ XDG_CONFIG_HOME: "/tmp/xdg" })).toBe("/tmp/xdg/uh");
+    expect(resolveDefaultConfigDir({ XDG_CONFIG_HOME: "/tmp/xdg" })).toBe(path.join("/tmp/xdg", "uh"));
   });
   test("falls back to ~/.config/uh otherwise", () => {
     const dir = resolveDefaultConfigDir({});
-    expect(dir.endsWith("/.config/uh")).toBe(true);
+    expect(dir).toBe(path.join(homedir(), ".config", "uh"));
   });
 });
 
diff --git a/tests/tui-run-events.test.ts b/tests/tui-run-events.test.ts
index 86c26e5..c837e97 100644
--- a/tests/tui-run-events.test.ts
+++ b/tests/tui-run-events.test.ts
@@ -1,5 +1,7 @@
-import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { describe, test, expect, beforeEach, afterEach, afterAll } from "vitest";
+import { mkdtempSync } from "node:fs";
 import { mkdir, rm, writeFile, appendFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import {
   parseEventLine,
@@ -8,7 +10,7 @@ import {
   type RunEvent,
 } from "../src/tui/run-events.js";
 
-const ROOT = "/tmp/uh-test-run-events";
+const ROOT = mkdtempSync(join(tmpdir(), "uh-test-run-events-"));
 const FILE = join(ROOT, "events.ndjson");
 
 async function reset() {
@@ -18,6 +20,7 @@ async function reset() {
 
 beforeEach(reset);
 afterEach(async () => { try { await rm(ROOT, { recursive: true, force: true }); } catch {} });
+afterAll(async () => { try { await rm(ROOT, { recursive: true, force: true }); } catch {} });
 
 describe("tui/run-events parseEventLine", () => {
   test("returns null for empty / whitespace input", () => {
diff --git a/tests/tui-run-orchestrator.test.ts b/tests/tui-run-orchestrator.test.ts
index cc3dba3..c6821d6 100644
--- a/tests/tui-run-orchestrator.test.ts
+++ b/tests/tui-run-orchestrator.test.ts
@@ -1,4 +1,5 @@
 import { describe, test, expect } from "vitest";
+import path from "node:path";
 import { buildRunArgs, resolveDefaultCliEntry } from "../src/tui/run-orchestrator.js";
 
 describe("tui/run-orchestrator buildRunArgs", () => {
@@ -35,6 +36,6 @@ describe("tui/run-orchestrator resolveDefaultCliEntry", () => {
   test("returns an absolute path pointing to cli.{js,ts} beside the module", () => {
     const entry = resolveDefaultCliEntry();
     expect(entry).toMatch(/[\/\\]cli\.(ts|js)$/);
-    expect(entry.startsWith("/")).toBe(true);
+    expect(path.isAbsolute(entry)).toBe(true);
   });
 });
diff --git a/tests/tui-screenshot-pipeline.test.ts b/tests/tui-screenshot-pipeline.test.ts
index 2dfd804..dd99d1d 100644
--- a/tests/tui-screenshot-pipeline.test.ts
+++ b/tests/tui-screenshot-pipeline.test.ts
@@ -1,4 +1,5 @@
 import { describe, test, expect, vi } from "vitest";
+import path from "node:path";
 import {
   navigationKeysForView,
   runScreenshotPipeline,
@@ -50,7 +51,7 @@ describe("tui/screenshot-pipeline runScreenshotPipeline", () => {
     });
     expect(writeFile).toHaveBeenCalledTimes(1);
     const [calledPath, calledContents] = writeFile.mock.calls[0]!;
-    expect(calledPath).toBe("/tmp/screenshots/missions.txt");
+    expect(calledPath).toBe(path.resolve("/tmp/screenshots/missions.txt"));
     expect(calledContents).toContain("FRAME:missions@80x24");
     // File output is always newline-terminated.
     expect(calledContents.endsWith("\n")).toBe(true);
diff --git a/tests/typesafe.test.ts b/tests/typesafe.test.ts
new file mode 100644
index 0000000..d8d9ab9
--- /dev/null
+++ b/tests/typesafe.test.ts
@@ -0,0 +1,339 @@
+import { afterEach, describe, expect, test, vi } from "vitest";
+import { DEFAULT_TYPESAFE_MODEL, REPORT_QUESTIONS, composeThreeVerdict, evaluateSystemOne, evaluateThreeVerdict,
+  type Question, type SystemOneState } from "../src/harness/typesafe.js";
+
+/** The provider answers with a versioned id even though the alias `jev-latest` was requested. */
+const VERSIONED_MODEL = "jev-2026-09-01";
+const noDelay = async () => {};
+
+type CapturedBody = {
+  model: string;
+  state: Record<string, unknown>;
+  questions: Record<string, { type: string; instructions?: string; criteria?: unknown }>;
+};
+
+function bodyOf(init?: RequestInit): CapturedBody {
+  return JSON.parse(String(init?.body)) as CapturedBody;
+}
+
+function answersFor(body: CapturedBody, noul: number | ((name: string) => number), model = VERSIONED_MODEL): string {
+  const answers: Record<string, unknown> = {};
+  for (const [name, question] of Object.entries(body.questions)) {
+    answers[name] = { type: question.type, noul: typeof noul === "number" ? noul : noul(name) };
+  }
+  return JSON.stringify({ model, answers, usage: { input_tokens: 11, output_tokens: 7 } });
+}
+
+const respondWith = (noul: number | ((name: string) => number)): typeof fetch =>
+  vi.fn<typeof fetch>(async (_input, init) => new Response(answersFor(bodyOf(init), noul), { status: 200 }));
+
+describe("TypeSafe System One transport", () => {
+  const originalKey = process.env.TYPESAFE_API_KEY;
+  const originalModel = process.env.UH_TYPESAFE_MODEL;
+
+  afterEach(() => {
+    if (originalKey === undefined) delete process.env.TYPESAFE_API_KEY;
+    else process.env.TYPESAFE_API_KEY = originalKey;
+    if (originalModel === undefined) delete process.env.UH_TYPESAFE_MODEL;
+    else process.env.UH_TYPESAFE_MODEL = originalModel;
+    vi.unstubAllGlobals();
+    vi.restoreAllMocks();
+  });
+
+  test("sends one bounded request and returns the validated versioned answer", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    let capturedUrl = "";
+    let capturedInit: RequestInit | undefined;
+    const fetchMock = vi.fn<typeof fetch>(async (input, init) => {
+      capturedUrl = String(input);
+      capturedInit = init;
+      return new Response(answersFor(bodyOf(init), 0.9), { status: 200 });
+    });
+
+    const result = await evaluateSystemOne({
+      state: { contract: { id: "m1" } },
+      questions: { "criterion-1": { type: "noul" } },
+      fetch: fetchMock,
+      delay: noDelay,
+    });
+
+    expect(capturedUrl).toBe("https://api.typesafe.ai/v1/systemone");
+    expect((capturedInit?.headers as Record<string, string>).Authorization).toBe("Bearer environment-key");
+    expect((capturedInit?.headers as Record<string, string>)["content-type"]).toBe("application/json");
+    const body = bodyOf(capturedInit);
+    expect(body.model).toBe(DEFAULT_TYPESAFE_MODEL);
+    expect(body.state).toEqual({ contract: { id: "m1" } });
+    expect(Object.keys(body.questions)).toEqual(["criterion-1"]);
+    expect(result).toMatchObject({
+      kind: "ok",
+      model: VERSIONED_MODEL,
+      answers: { "criterion-1": { noul: 0.9 } },
+      usage: { input_tokens: 11, output_tokens: 7 },
+    });
+    expect(result.kind === "ok" && result.latency_ms >= 0).toBe(true);
+  });
+
+  test("resolves the requested model from the option, then UH_TYPESAFE_MODEL, then the default", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const models: string[] = [];
+    const fetchMock = vi.fn<typeof fetch>(async (_input, init) => {
+      const body = bodyOf(init);
+      models.push(body.model);
+      return new Response(answersFor(body, 0.9), { status: 200 });
+    });
+
+    delete process.env.UH_TYPESAFE_MODEL;
+    await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: noDelay });
+    process.env.UH_TYPESAFE_MODEL = "jev-2026-01-01";
+    await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: noDelay });
+    await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, model: "jev-pinned", fetch: fetchMock, delay: noDelay });
+
+    expect(models).toEqual([DEFAULT_TYPESAFE_MODEL, "jev-2026-01-01", "jev-pinned"]);
+  });
+
+  test("returns disabled without a key and never contacts the provider", async () => {
+    delete process.env.TYPESAFE_API_KEY;
+    const fetchMock = vi.fn<typeof fetch>(async () => new Response("{}", { status: 200 }));
+
+    await expect(evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock }))
+      .resolves.toEqual({ kind: "disabled" });
+    expect(fetchMock).not.toHaveBeenCalled();
+  });
+
+  test("enforces timeoutMs with AbortSignal.timeout and does not retry a timeout", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const fetchMock = vi.fn<typeof fetch>((_input, init) => new Promise<Response>((_resolve, reject) => {
+      init?.signal?.addEventListener("abort", () => reject(new DOMException("The operation was aborted.", "TimeoutError")));
+    }));
+
+    await expect(evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, timeoutMs: 5, fetch: fetchMock, delay: noDelay }))
+      .resolves.toEqual({ kind: "unavailable", reason: "timeout" });
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+  });
+
+  test("times out even when the transport ignores the abort signal", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const fetchMock = vi.fn<typeof fetch>(() => new Promise<Response>(() => {}));
+
+    await expect(evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, timeoutMs: 5, fetch: fetchMock, delay: noDelay }))
+      .resolves.toEqual({ kind: "unavailable", reason: "timeout" });
+  });
+
+  test("retries 429 honoring a numeric retry-after header in seconds", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const delays: number[] = [];
+    let calls = 0;
+    const fetchMock = vi.fn<typeof fetch>(async (_input, init) => {
+      calls += 1;
+      return calls === 1
+        ? new Response("slow down", { status: 429, headers: { "retry-after": "1" } })
+        : new Response(answersFor(bodyOf(init), 0.9), { status: 200 });
+    });
+
+    const result = await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: async (ms) => { delays.push(ms); } });
+
+    expect(result.kind).toBe("ok");
+    expect(calls).toBe(2);
+    expect(delays).toEqual([1000]);
+  });
+
+  test("caps an oversized retry-after at five seconds", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const delays: number[] = [];
+    let calls = 0;
+    const fetchMock = vi.fn<typeof fetch>(async (_input, init) => {
+      calls += 1;
+      return calls === 1
+        ? new Response("slow down", { status: 429, headers: { "retry-after": "42" } })
+        : new Response(answersFor(bodyOf(init), 0.9), { status: 200 });
+    });
+
+    await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: async (ms) => { delays.push(ms); } });
+    expect(delays).toEqual([5000]);
+  });
+
+  test("falls back to the default backoff when retry-after is not numeric seconds", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const delays: number[] = [];
+    let calls = 0;
+    const fetchMock = vi.fn<typeof fetch>(async (_input, init) => {
+      calls += 1;
+      return calls === 1
+        ? new Response("slow down", { status: 429, headers: { "retry-after": "Wed, 21 Oct 2015 07:28:00 GMT" } })
+        : new Response(answersFor(bodyOf(init), 0.9), { status: 200 });
+    });
+
+    await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: async (ms) => { delays.push(ms); } });
+    expect(delays).toEqual([250]);
+  });
+
+  test("falls back to 250 ms then 1000 ms and gives up after three retryable attempts", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const delays: number[] = [];
+    const fetchMock = vi.fn<typeof fetch>(async () => new Response("busy", { status: 529 }));
+
+    const result = await evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: async (ms) => { delays.push(ms); } });
+
+    expect(result).toEqual({ kind: "unavailable", reason: "http", status: 529 });
+    expect(fetchMock).toHaveBeenCalledTimes(3);
+    expect(delays).toEqual([250, 1000]);
+  });
+
+  test("does not retry a non-retryable status", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const delays: number[] = [];
+    const fetchMock = vi.fn<typeof fetch>(async () => new Response("nope", { status: 500 }));
+
+    await expect(evaluateSystemOne({ state: {}, questions: { q: { type: "noul" } }, fetch: fetchMock, delay: async (ms) => { delays.push(ms); } }))
+      .resolves.toEqual({ kind: "unavailable", reason: "http", status: 500 });
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+    expect(delays).toEqual([]);
+  });
+
+  test("never throws for provider conditions", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const questions = { q: { type: "noul" } as Question };
+
+    await expect(evaluateSystemOne({ state: {}, questions, fetch: async () => { throw new Error("socket hang up"); }, delay: noDelay }))
+      .resolves.toEqual({ kind: "unavailable", reason: "transport" });
+    await expect(evaluateSystemOne({ state: {}, questions, fetch: async () => new Response("not json", { status: 200 }), delay: noDelay }))
+      .resolves.toEqual({ kind: "malformed", reason: "invalid_json" });
+    await expect(evaluateSystemOne({ state: {}, questions, fetch: async () => new Response(JSON.stringify({ model: "m", answers: {} }), { status: 200 }), delay: noDelay }))
+      .resolves.toEqual({ kind: "malformed", reason: "invalid_envelope" });
+    await expect(evaluateSystemOne({ state: {}, questions, fetch: async () => new Response(JSON.stringify({ answers: { q: { noul: 0.9 } } }), { status: 200 }), delay: noDelay }))
+      .resolves.toEqual({ kind: "malformed", reason: "invalid_envelope" });
+  });
+
+  test.each([
+    { name: "a Noul above one", question: { type: "noul" } as Question, answer: { noul: 1.5 } },
+    { name: "a negative Noul", question: { type: "noul" } as Question, answer: { noul: -0.1 } },
+    { name: "a missing Noul", question: { type: "noul" } as Question, answer: { score: 1 } },
+    { name: "a choice outside the declared options", question: { type: "choice", criteria: { pass: "a", fail: "b" } } as Question, answer: { choice: "maybe", probabilities: { pass: 0.5, fail: 0.5 } } },
+    { name: "probabilities that are not exactly the declared options", question: { type: "choice", criteria: { pass: "a", fail: "b" } } as Question, answer: { choice: "pass", probabilities: { pass: 1 } } },
+    { name: "a score outside the level range", question: { type: "score", criteria: ["low", "mid", "high"] } as Question, answer: { score: 3 } },
+  ])("rejects $name as an invalid envelope", async ({ question, answer }) => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const fetchMock = vi.fn<typeof fetch>(async () => new Response(JSON.stringify({ model: VERSIONED_MODEL, answers: { q: answer } }), { status: 200 }));
+
+    await expect(evaluateSystemOne({ state: {}, questions: { q: question }, fetch: fetchMock, delay: noDelay }))
+      .resolves.toEqual({ kind: "malformed", reason: "invalid_envelope" });
+  });
+
+  test("accepts a choice inside its declared options and a score inside the level range", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const questions: Record<string, Question> = {
+      q1: { type: "choice", criteria: { pass: "a", fail: "b" } },
+      q2: { type: "score", criteria: ["low", "mid", "high"] },
+    };
+    const fetchMock = vi.fn<typeof fetch>(async () => new Response(JSON.stringify({
+      model: VERSIONED_MODEL,
+      answers: { q1: { choice: "pass", probabilities: { pass: 0.9, fail: 0.1 } }, q2: { score: 2 } },
+    }), { status: 200 }));
+
+    const result = await evaluateSystemOne({ state: {}, questions, fetch: fetchMock, delay: noDelay });
+    expect(result).toMatchObject({ kind: "ok", answers: { q1: { choice: "pass" }, q2: { score: 2 } } });
+  });
+});
+
+describe("three-verdict composition", () => {
+  test.each([
+    { name: "a deterministic failure dominating a confident model pass", deterministicFailure: true, criterionNouls: [0.99], reportNouls: [0.01], expected: "needs-remediation" },
+    { name: "a criterion below the remediation threshold", deterministicFailure: false, criterionNouls: [0.49], reportNouls: [0.01], expected: "needs-remediation" },
+    { name: "no criteria at all", deterministicFailure: false, criterionNouls: [], reportNouls: [0.01], expected: "pass" },
+    { name: "every criterion exactly at the pass threshold", deterministicFailure: false, criterionNouls: [0.8, 0.95], reportNouls: [0.01], expected: "pass" },
+    { name: "a criterion between the thresholds", deterministicFailure: false, criterionNouls: [0.79], reportNouls: [0.01], expected: "needs-attention" },
+    { name: "a report flag below the pass threshold", deterministicFailure: false, criterionNouls: [0.99], reportNouls: [0.5], expected: "needs-attention" },
+  ])("composes $name", ({ deterministicFailure, criterionNouls, reportNouls, expected }) => {
+    expect(composeThreeVerdict({ deterministicFailure, criterionNouls, reportNouls })).toBe(expected);
+  });
+});
+
+describe("evaluateThreeVerdict", () => {
+  const originalKey = process.env.TYPESAFE_API_KEY;
+  afterEach(() => {
+    if (originalKey === undefined) delete process.env.TYPESAFE_API_KEY;
+    else process.env.TYPESAFE_API_KEY = originalKey;
+  });
+
+  const BLOCKED: SystemOneState = {
+    contract: { acceptance_criteria: [] },
+    criteria: [
+      { id: "ac-1", description: "docs updated", status: "blocked" },
+      { id: "ac-2", description: "tests added", status: "passed" },
+      { id: "ac-3", description: "build green", status: "failed", exit_code: 1 },
+    ],
+    tamper: false,
+  };
+
+  test("asks one Noul per non-deterministic criterion and no tamper question", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    let body: CapturedBody | undefined;
+    const fetchMock = vi.fn<typeof fetch>(async (_input, init) => {
+      body = bodyOf(init);
+      return new Response(answersFor(bodyOf(init), 0.99), { status: 200 });
+    });
+
+    const result = await evaluateThreeVerdict(BLOCKED, "Assess the supplied disposition.", { fetch: fetchMock, delay: noDelay });
+
+    const asked = body!;
+    expect(Object.keys(asked.questions)).toEqual([
+      "criteria[0]",
+      REPORT_QUESTIONS.work_incomplete,
+      REPORT_QUESTIONS.names_blocker,
+      REPORT_QUESTIONS.claims_failed_check_passed,
+    ]);
+    expect(asked.questions["criteria[0]"]).toMatchObject({ type: "noul" });
+    expect(String(asked.questions["criteria[0]"]?.instructions)).toContain("`criteria[0]`");
+    expect(JSON.stringify(asked.questions)).not.toContain("tamper");
+    expect(Object.keys(asked.questions)).toHaveLength(4);
+    // ac-3 failed deterministically, so its confident model pass cannot win.
+    expect(result).toMatchObject({ kind: "ok", verdict: "needs-remediation", tamper: false, model: VERSIONED_MODEL });
+  });
+
+  test("composes pass and confidence from the asked Nouls only", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+    const state: SystemOneState = { contract: {}, criteria: [{ id: "ac-1", description: "docs", status: "blocked" }] };
+
+    const pass = await evaluateThreeVerdict(state, undefined, {
+      fetch: respondWith((name) => (name.startsWith("criteria[") ? 0.9 : 0.1)),
+      delay: noDelay,
+    });
+    expect(pass).toMatchObject({ kind: "ok", verdict: "pass" });
+    expect(pass.kind === "ok" && pass.confidence).toBeCloseTo(0.8, 10);
+
+    const attention = await evaluateThreeVerdict(state, undefined, {
+      fetch: respondWith((name) => (name.startsWith("criteria[") ? 0.6 : 0.1)),
+      delay: noDelay,
+    });
+    expect(attention).toMatchObject({ kind: "ok", verdict: "needs-attention" });
+    expect(attention.kind === "ok" && attention.confidence).toBeCloseTo(0.2, 10);
+  });
+
+  test("takes tamper from the deterministic state and defaults to false", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+
+    const clean = await evaluateThreeVerdict({ contract: {} }, undefined, { fetch: respondWith(0.1), delay: noDelay });
+    expect(clean).toMatchObject({ kind: "ok", tamper: false, verdict: "pass" });
+
+    const flagged = await evaluateThreeVerdict({ contract: {}, tamper: true }, undefined, { fetch: respondWith(0.1), delay: noDelay });
+    expect(flagged).toMatchObject({ kind: "ok", tamper: true });
+  });
+
+  test("returns provider conditions instead of throwing", async () => {
+    process.env.TYPESAFE_API_KEY = "environment-key";
+
+    await expect(evaluateThreeVerdict({ contract: {} }, undefined, {
+      fetch: async () => { throw new Error("socket hang up"); },
+      delay: noDelay,
+    })).resolves.toEqual({ kind: "unavailable", reason: "transport" });
+    await expect(evaluateThreeVerdict({ contract: {} }, undefined, {
+      fetch: async () => new Response("{", { status: 200 }),
+      delay: noDelay,
+    })).resolves.toEqual({ kind: "malformed", reason: "invalid_json" });
+  });
+
+  test("returns disabled without a provider credential", async () => {
+    delete process.env.TYPESAFE_API_KEY;
+    await expect(evaluateThreeVerdict({ contract: {} })).resolves.toEqual({ kind: "disabled" });
+  });
+});
diff --git a/tests/usage.test.ts b/tests/usage.test.ts
index 1ddc2f2..006eebf 100644
--- a/tests/usage.test.ts
+++ b/tests/usage.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "vitest";
-import { buildUsageEvent, estimateUsage, usageFromOpenAI } from "../src/harness/usage.js";
+import { aggregateRuntimeUsage, estimateConfiguredCost, estimateUsage, usageFromOpenAI } from "../src/harness/usage.js";
 
 describe("estimateUsage", () => {
   test("derives ~chars/4 token counts and tags source estimated", () => {
@@ -37,9 +37,11 @@ describe("usageFromOpenAI", () => {
     expect(usageFromOpenAI({ prompt_tokens: 100, completion_tokens: 50 })?.total_tokens).toBe(150);
   });
 
-  test("tolerates a partial object (only completion_tokens)", () => {
+  test("preserves unknown input and total when only completion usage is reported", () => {
     const u = usageFromOpenAI({ completion_tokens: 7 });
-    expect(u).toMatchObject({ input_tokens: 0, output_tokens: 7, total_tokens: 7, source: "runtime" });
+    expect(u?.output_tokens).toBe(7);
+    expect(u?.input_tokens).toBeUndefined();
+    expect(u?.total_tokens).toBeUndefined();
   });
 
   test("returns null for absent / malformed usage", () => {
@@ -51,30 +53,40 @@ describe("usageFromOpenAI", () => {
   });
 });
 
-describe("buildUsageEvent", () => {
-  test("shapes a runtime.usage NDJSON payload", () => {
-    const event = buildUsageEvent(
-      "hermes-proxy",
-      "m1",
-      { input_tokens: 3, output_tokens: 4, total_tokens: 7, source: "runtime", model: "m" },
-      "2026-05-23T00:00:00.000Z",
-    );
-    expect(event).toEqual({
-      event: "runtime.usage",
-      timestamp: "2026-05-23T00:00:00.000Z",
-      runtime: "hermes-proxy",
-      mission_id: "m1",
-      input_tokens: 3,
-      output_tokens: 4,
-      total_tokens: 7,
-      source: "runtime",
-      model: "m",
-    });
+describe("aggregateRuntimeUsage", () => {
+  test("retains mixed-route spend without attributing it to one model or hiding estimated measurements", () => {
+    const facts = aggregateRuntimeUsage([
+      { provider: "one", model: "one/model", cost_usd: 0.25, cost_basis: "provider_reported", usage: { source: "runtime", total_tokens: 10 } },
+      { provider: "two", model: "two/model", cost_usd: 0.75, cost_basis: "runtime_estimate", usage: { source: "estimated", total_tokens: 20 } },
+    ]);
+    expect(facts.cost_usd).toBe(1);
+    expect(facts.cost_basis).toBe("mixed");
+    expect(facts.usage).toMatchObject({ total_tokens: 30, source: "estimated" });
+    expect(facts.model).toBeUndefined();
+    expect(facts.provider).toBeUndefined();
   });
 
-  test("omits model when absent", () => {
-    const event = buildUsageEvent("codex", "m2", estimateUsage("hello", "hi"), "2026-05-23T00:00:00.000Z");
-    expect(event).not.toHaveProperty("model");
-    expect(event).toMatchObject({ event: "runtime.usage", runtime: "codex", source: "estimated" });
+  test("does not present missing attempts or missing counters as complete totals", () => {
+    const first = { cost_usd: 0.25, usage: { source: "runtime" as const, input_tokens: 10, output_tokens: 2, total_tokens: 12 } };
+    const partial = aggregateRuntimeUsage([first, { usage: { source: "runtime", output_tokens: 3 } }]);
+    expect(partial.cost_usd).toBeUndefined();
+    expect(partial.usage?.output_tokens).toBe(5);
+    expect(partial.usage?.input_tokens).toBeUndefined();
+    expect(partial.usage?.total_tokens).toBeUndefined();
+    expect(aggregateRuntimeUsage([first, undefined]).cost_usd).toBeUndefined();
   });
 });
+
+
+test("configured pricing subtracts only declared cache overlap and refuses incomplete or mismatched evidence", () => {
+  const pricing = {
+    model: "fixture/model", input_usd_per_million: 1, output_usd_per_million: 2,
+    cache_read_usd_per_million: 0.1, cache_write_usd_per_million: 3,
+    input_includes_cache_read: true, input_includes_cache_write: true,
+  };
+  const usage = { source: "runtime" as const, input_tokens: 100, output_tokens: 5, cache_read_tokens: 20, cache_write_tokens: 10 };
+  expect(estimateConfiguredCost(usage, "fixture/model", pricing)).toBeCloseTo(0.000112, 10);
+  expect(estimateConfiguredCost({ ...usage, cache_write_tokens: undefined }, "fixture/model", pricing)).toBeUndefined();
+  expect(estimateConfiguredCost({ ...usage, input_tokens: 10 }, "fixture/model", pricing)).toBeUndefined();
+  expect(estimateConfiguredCost(usage, "another/model", pricing)).toBeUndefined();
+});
diff --git a/tests/validate.test.ts b/tests/validate.test.ts
index e1dbd2d..9bbe3d0 100644
--- a/tests/validate.test.ts
+++ b/tests/validate.test.ts
@@ -323,8 +323,8 @@ workflow_profile: research-docs
     );
 
     const { stdout, stderr } = await execFileP(
-      join(process.cwd(), "node_modules", ".bin", "tsx"),
-      ["src/cli.ts", "validate", "--all-missions", "--root", TEST_ROOT],
+      process.execPath,
+      ["--import", "tsx", "src/cli.ts", "validate", "--all-missions", "--root", TEST_ROOT],
       { cwd: process.cwd() }
     );
 
@@ -344,8 +344,8 @@ id: bad-mission
 
     try {
       await execFileP(
-        join(process.cwd(), "node_modules", ".bin", "tsx"),
-        ["src/cli.ts", "validate", "--all-missions", "--root", TEST_ROOT],
+        process.execPath,
+        ["--import", "tsx", "src/cli.ts", "validate", "--all-missions", "--root", TEST_ROOT],
         { cwd: process.cwd() }
       );
       throw new Error("expected CLI to fail");
@@ -375,7 +375,7 @@ priority: high
 objective: >
   Build the initial documentation foundation before implementation begins.
 context:
-  repo_root: /Users/eduardojaviergarcialopez/AgenticEngineering/ultimate-harness
+  repo_root: /workspace/ultimate-harness
   read_first:
     - README.md
     - docs/architecture/overview.md
diff --git a/tests/verdict.test.ts b/tests/verdict.test.ts
index 5649077..c44c064 100644
--- a/tests/verdict.test.ts
+++ b/tests/verdict.test.ts
@@ -13,7 +13,6 @@ const execFileP = promisify(execFile);
 
 let TEST_ROOT: string;
 const CLI = join(process.cwd(), "src", "cli.ts");
-const RUNNER = join(process.cwd(), "node_modules", ".bin", "tsx");
 
 beforeEach(async () => {
   TEST_ROOT = await mkdtemp(join(tmpdir(), "uh-test-verdict-"));
@@ -208,8 +207,7 @@ describe("UH-76 uh mission verdict CLI", () => {
       if (value !== "pass") {
         args.push("--rationale", `because ${value}`);
       }
-      const { stdout } = await execFileP(RUNNER, args, { env: { ...process.env, NODE_ENV: "test" } });
-      expect(stdout).toContain(`[OK] verdict recorded: ${value}`);
+      await execFileP(process.execPath, ["--import", "tsx", ...args], { env: { ...process.env, NODE_ENV: "test" } });
     }
     const audit = (await readFile(join(TEST_ROOT, ".harness", "audit.log"), "utf-8"))
       .trim().split("\n");
@@ -218,7 +216,7 @@ describe("UH-76 uh mission verdict CLI", () => {
 
   test("fails when --rationale is missing on a non-pass verdict", async () => {
     await seedRuntimeResult("m-cli-fail");
-    await expect(execFileP(RUNNER, [
+    await expect(execFileP(process.execPath, ["--import", "tsx",
       CLI, "mission", "verdict", "m-cli-fail", "needs-remediation", "--root", TEST_ROOT,
     ])).rejects.toMatchObject({ code: 1 });
   });
diff --git a/tests/verify.test.ts b/tests/verify.test.ts
index ccbf4e7..182da9f 100644
--- a/tests/verify.test.ts
+++ b/tests/verify.test.ts
@@ -9,13 +9,16 @@ import { initializeHarness } from "../src/harness/init.js";
 import { getStatus } from "../src/harness/status.js";
 import { validateFile } from "../src/harness/validate.js";
 import { verifyMission } from "../src/harness/verify.js";
+import { REPORT_QUESTIONS } from "../src/harness/typesafe.js";
+import { waitForTerminated } from "./process-state.js";
 
 let TEST_ROOT: string;
 const execFileP = promisify(execFile);
-const CLI = join(process.cwd(), "node_modules", ".bin", "tsx");
 
 async function runUh(args: string[]) {
-  return execFileP(CLI, ["src/cli.ts", ...args], { cwd: process.cwd() });
+  const env = { ...process.env };
+  delete env.TYPESAFE_API_KEY;
+  return execFileP(process.execPath, ["--import", "tsx", "src/cli.ts", ...args], { cwd: process.cwd(), env });
 }
 
 async function runUhFailure(args: string[]) {
@@ -64,7 +67,76 @@ test.afterEach(async () => {
   await rm(TEST_ROOT, { recursive: true, force: true });
 });
 
+test("declared outputs gate completion on presence, JSON validity, and the required terminal marker", async () => {
+  const missionDir = await writeMission("outputs", []);
+  const missionPath = join(missionDir, "mission.yaml");
+  const mission = parse(await readFile(missionPath, "utf8"));
+  mission.expected_artifacts = [
+    { path: "out/data.json" },
+    { path: "out/report.md", completion_marker: "DONE" },
+  ];
+  await writeFile(missionPath, stringify(mission));
+  expect((await verifyMission(TEST_ROOT, "outputs", { useSandbox: false })).status).toBe("failed");
+  await mkdir(join(TEST_ROOT, "out"));
+  await writeFile(join(TEST_ROOT, "out", "data.json"), "private-malformed-payload");
+  await writeFile(join(TEST_ROOT, "out", "report.md"), "Evidence collected\nDONE\n");
+  expect((await verifyMission(TEST_ROOT, "outputs", { useSandbox: false })).status).toBe("failed");
+  expect(JSON.stringify(await readVerification("outputs"))).not.toContain("private-malformed-payload");
+  await writeFile(join(TEST_ROOT, "out", "data.json"), '{"verified":true}');
+  await writeFile(join(TEST_ROOT, "out", "report.md"), "BLOCKED: missing required evidence\n");
+  expect((await verifyMission(TEST_ROOT, "outputs", { useSandbox: false })).status).toBe("failed");
+  await writeFile(join(TEST_ROOT, "out", "report.md"), "Evidence collected\nDONE\n");
+  expect((await verifyMission(TEST_ROOT, "outputs", { useSandbox: false })).status).toBe("passed");
+});
+
+test("declared outputs cannot read through an external directory junction", async () => {
+  const outside = await mkdtemp(join(tmpdir(), "uh-external-output-"));
+  try {
+    await writeFile(join(outside, "data.json"), '{"private":"external-evidence"}');
+    await symlink(outside, join(TEST_ROOT, "linked"), process.platform === "win32" ? "junction" : "dir");
+    const missionDir = await writeMission("escaped-output", []);
+    const missionPath = join(missionDir, "mission.yaml");
+    const mission = parse(await readFile(missionPath, "utf8"));
+    mission.expected_artifacts = [{ path: "linked/data.json" }];
+    await writeFile(missionPath, stringify(mission));
+    expect((await verifyMission(TEST_ROOT, "escaped-output", { useSandbox: false })).status).toBe("failed");
+    expect(JSON.stringify(await readVerification("escaped-output"))).not.toContain("external-evidence");
+  } finally { await rm(outside, { recursive: true, force: true }); }
+});
+
 describe("uh verify", () => {
+  test("semantic gate receives summaries, not raw command output, and cannot override failed checks", async () => {
+    const missionDir = await writeMission("summary-gate", [{
+      name: "PRIVATE_CHECK_NAME",
+      command: "node -e \"console.log('PRIVATE_OUTPUT_SENTINEL'); process.exit(7)\"",
+    }]);
+    await writeFile(join(missionDir, "diff.patch"), "PRIVATE_DIFF_SENTINEL");
+    const originalFetch = globalThis.fetch;
+    const originalKey = process.env.TYPESAFE_API_KEY;
+    let payload = "";
+    process.env.TYPESAFE_API_KEY = "synthetic-test-key";
+    globalThis.fetch = async (_input, init) => {
+      payload = String(init?.body);
+      const { questions } = JSON.parse(payload) as { questions: Record<string, { type: string }> };
+      const answers: Record<string, unknown> = {};
+      for (const name of Object.keys(questions)) answers[name] = { noul: 0 };
+      return new Response(JSON.stringify({ model: "jev-test", answers }));
+    };
+    try {
+      const result = await verifyMission(TEST_ROOT, "summary-gate");
+      expect(result.status).toBe("failed");
+      expect(JSON.parse(payload).state.outputs.checks).toContainEqual({ type: "command", status: "failed" });
+      expect(payload).not.toContain("PRIVATE_CHECK_NAME");
+      expect(payload).not.toContain("PRIVATE_OUTPUT_SENTINEL");
+      expect(payload).not.toContain("PRIVATE_DIFF_SENTINEL");
+      expect(payload).not.toContain(TEST_ROOT);
+    } finally {
+      globalThis.fetch = originalFetch;
+      if (originalKey === undefined) delete process.env.TYPESAFE_API_KEY;
+      else process.env.TYPESAFE_API_KEY = originalKey;
+    }
+  });
+
   test("passing command writes passed verification.yaml and exits 0", async () => {
     await writeMission("pass", [{ name: "node ok", command: "node -e \"console.log('ok')\"" }]);
 
@@ -82,7 +154,10 @@ describe("uh verify", () => {
     expect(verification.checks[0].command).toContain("node -e");
     expect(verification.checks[0].notes).toContain("stdout: ok");
     const events = (await readFile(join(TEST_ROOT, ".harness", "missions", "pass", "events.ndjson"), "utf-8")).trim().split("\n").map((line) => JSON.parse(line));
-    expect(events.map((e) => e.type)).toEqual(["verification.started", "verification.finished"]);
+    expect(events.find((event) => event.type === "decision.recorded")).toMatchObject({
+      provider_status: "disabled", applied: false,
+      state_transition: { from: "passed", to: "passed", unlocked: [] },
+    });
   });
 
   test("failing command writes failed verification.yaml and exits nonzero", async () => {
@@ -122,25 +197,30 @@ describe("uh verify", () => {
     expect(verification.findings).toEqual([{ severity: "error", message: "verification check timed out: node hang after 25ms" }]);
   });
 
-  test("non-cooperative timed out command is hard-killed and returns promptly", async () => {
+  test("non-cooperative timed out command is stopped, not merely reported failed", async () => {
+    // Exercise OS process termination; fake timers cannot stop or observe this child.
     await writeMission("timeout-ignore-sigterm", [{
       name: "node ignore sigterm",
-      command: "node -e \"process.on('SIGTERM',()=>{}); setInterval(()=>{}, 1000)\"",
+      command: "node -e \"process.on('SIGTERM',()=>{}); require('node:fs').writeFileSync('timeout-child.pid', String(process.pid)); setInterval(()=>{}, 1000)\"",
     }]);
 
-    const startedAt = Date.now();
-    const result = await verifyMission(TEST_ROOT, "timeout-ignore-sigterm", { commandTimeoutMs: 25 });
-    const elapsedMs = Date.now() - startedAt;
-
-    expect(elapsedMs).toBeLessThan(500);
-    expect(result.status).toBe("failed");
-    expect(result.checks_failed).toBe(1);
-    const verification = await readVerification("timeout-ignore-sigterm");
-    expect(verification.status).toBe("failed");
-    expect(verification.checks[0]).toMatchObject({ name: "node ignore sigterm", type: "command", status: "failed" });
-    expect(verification.checks[0].notes).toContain("timed out after 25ms");
-    expect(verification.findings).toEqual([{ severity: "error", message: "verification check timed out: node ignore sigterm after 25ms" }]);
-  }, 1000);
+    let childPid: number | undefined;
+    try {
+      const result = await verifyMission(TEST_ROOT, "timeout-ignore-sigterm", { commandTimeoutMs: 1000 });
+      childPid = Number(await readFile(join(TEST_ROOT, "timeout-child.pid"), "utf-8"));
+      expect(childPid).toBeGreaterThan(0);
+      expect(result.status).toBe("failed");
+      expect(result.checks_failed).toBe(1);
+      // The child is stopped, not merely reported failed. Assert on the
+      // process state rather than on the pid being reaped: a reparented zombie
+      // under a non-reaping init would never disappear from the pid table.
+      await waitForTerminated(childPid);
+    } finally {
+      if (childPid !== undefined) {
+        try { process.kill(childPid, "SIGKILL"); } catch { /* already stopped */ }
+      }
+    }
+  });
 
   test("CLI timeout option fails timed out verification promptly", async () => {
     await writeMission("timeout-cli", [{ name: "node hang", command: "node -e \"setTimeout(() => {}, 60000)\"" }]);
@@ -148,10 +228,13 @@ describe("uh verify", () => {
     const startedAt = Date.now();
     const { stdout, stderr } = await runUhFailure(["verify", "timeout-cli", "--root", TEST_ROOT, "--timeout-ms", "25"]);
     const elapsedMs = Date.now() - startedAt;
-    // Generous bound: CLI startup on slow CI runners can be >1s; the
-    // assertion that matters is "we return well before the inner 500ms
-    // setTimeout could naturally complete + propagate", not micro-latency.
-    expect(elapsedMs).toBeLessThan(3000);
+    // The mechanism this asserts: the child hangs for 60s, so returning under
+    // 30s proves the 25ms CLI timeout fired and stopped it — the child can
+    // never finish first. The ceiling is deliberately generous (rather than
+    // tight to the 25ms timeout) because the CLI subprocess pays a full tsx
+    // cold start, which measured >3s under parallel load; the exact timeout
+    // window is asserted on the verification record below, not on wall time.
+    expect(elapsedMs).toBeLessThan(30_000);
     expect(`${stdout}${stderr}`).toContain("[FAIL] timeout-cli");
     const verification = await readVerification("timeout-cli");
     expect(verification.status).toBe("failed");
@@ -318,6 +401,153 @@ describe("uh verify", () => {
   });
 });
 
+describe("verification hands System One per-criterion evidence", () => {
+  const originalFetch = globalThis.fetch;
+  const originalKey = process.env.TYPESAFE_API_KEY;
+  const DIFF_SENTINEL = "PRIVATE_DIFF_SENTINEL";
+  const OUTPUT_SENTINEL = "PRIVATE_OUTPUT_SENTINEL";
+
+  afterEach(() => {
+    globalThis.fetch = originalFetch;
+    if (originalKey === undefined) delete process.env.TYPESAFE_API_KEY;
+    else process.env.TYPESAFE_API_KEY = originalKey;
+  });
+
+  async function writeCriteriaMission(id: string, options: {
+    acceptanceCriteria?: unknown[];
+    checks?: Array<{ name: string; command?: string }>;
+    expectedArtifacts?: Array<{ path: string }>;
+  } = {}) {
+    const missionDir = join(TEST_ROOT, ".harness", "missions", id);
+    await mkdir(missionDir, { recursive: true });
+    await writeFile(join(missionDir, "mission.yaml"), stringify({
+      schema_version: "uh.mission.v0",
+      id,
+      title: `Mission ${id}`,
+      workflow_profile: "research-docs",
+      objective: "Criteria projection test.",
+      acceptance_criteria: options.acceptanceCriteria ?? [],
+      expected_artifacts: options.expectedArtifacts ?? [],
+      verification: {
+        required_checks: options.checks ?? [],
+        review_gates: [],
+      },
+    }), "utf-8");
+    await writeFile(join(missionDir, "diff.patch"), DIFF_SENTINEL, "utf-8");
+    return missionDir;
+  }
+
+  /** A provider stub that answers every asked question with `noul`, capturing the raw request body. */
+  function answerAllWith(noul: number, capture: (payload: string) => void): void {
+    process.env.TYPESAFE_API_KEY = "synthetic-test-key";
+    globalThis.fetch = (async (_input, init) => {
+      const payload = String(init?.body);
+      capture(payload);
+      const { questions } = JSON.parse(payload) as { questions: Record<string, { type: string }> };
+      const answers: Record<string, unknown> = {};
+      for (const name of Object.keys(questions)) answers[name] = { noul };
+      return new Response(JSON.stringify({ model: "jev-test", answers }));
+    }) as typeof fetch;
+  }
+
+  async function writeRunControl(missionDir: string, missionId: string, runId: string, stopCode: string) {
+    await mkdir(join(missionDir, "runs", runId), { recursive: true });
+    const now = new Date().toISOString();
+    await writeFile(join(missionDir, "runs", runId, "runtime-control.json"), JSON.stringify({
+      schema_version: "uh.runtime-control.v0", mission_id: missionId, run_id: runId, runtime: "oh-my-pi",
+      controller_pid: 4242, started_at: now, heartbeat_at: now, status: "failed", stop_code: stopCode,
+      turns: 0, denials: 0, inflight_tools: 0,
+    }), "utf-8");
+    await writeFile(join(missionDir, "latest.json"), JSON.stringify({
+      schema_version: "uh.latest-run.v0", run_id: runId, started_at: now, status: "failed",
+    }), "utf-8");
+  }
+
+  test("projects one question per non-deterministic criterion and only harness-established evidence", async () => {
+    await writeCriteriaMission("criteria-projection", {
+      acceptanceCriteria: [
+        { id: "ac-det-pass", description: "det pass", check_command: "node -e \"process.exit(0)\"", severity: "block" },
+        { id: "ac-det-fail", description: "det fail", check_command: "node -e \"process.exit(3)\"", severity: "block" },
+        { id: "ac-sem", description: "needs judgment", severity: "block" },
+      ],
+      checks: [{ name: "det-check", command: `node -e "console.log('${OUTPUT_SENTINEL}'); process.exit(0)"` }],
+      expectedArtifacts: [{ path: "out/data.json" }],
+    });
+
+    let payload = "";
+    answerAllWith(1, (body) => { payload = body; });
+    const result = await verifyMission(TEST_ROOT, "criteria-projection", { useSandbox: false });
+
+    const body = JSON.parse(payload) as {
+      questions: Record<string, unknown>;
+      state: { criteria: Array<Record<string, unknown>>; tamper: boolean };
+    };
+
+    // Exactly one criterion question (ac-sem) plus the fixed report battery; a
+    // criterion with a check_command already has a deterministic result.
+    expect(Object.keys(body.questions).sort()).toEqual([
+      "criteria[2]",
+      REPORT_QUESTIONS.work_incomplete,
+      REPORT_QUESTIONS.names_blocker,
+      REPORT_QUESTIONS.claims_failed_check_passed,
+    ].sort());
+
+    const [detPass, detFail, semantic] = body.state.criteria;
+    expect(detPass).toMatchObject({ id: "ac-det-pass", status: "passed", exit_code: 0, check_command: "node -e \"process.exit(0)\"" });
+    expect(detFail).toMatchObject({ id: "ac-det-fail", status: "failed", exit_code: 3, check_command: "node -e \"process.exit(3)\"" });
+    expect(detPass.evidence).toBeUndefined();
+    expect(detFail.evidence).toBeUndefined();
+
+    // The non-deterministic criterion carries no status and only facts the
+    // harness established: expected-output paths/statuses and check names/statuses.
+    expect(semantic).toMatchObject({ id: "ac-sem", description: "needs judgment", severity: "block" });
+    expect(semantic.status).toBeUndefined();
+    expect(semantic.evidence).toEqual({
+      expected_outputs: [{ path: "out/data.json", status: "failed" }],
+      required_checks: [{ name: "det-check", status: "passed" }],
+    });
+    expect(body.state.tamper).toBe(false);
+
+    // A deterministic failure dominates a provider that answers 1.0 everywhere.
+    expect(result.status).toBe("failed");
+
+    // No diff text, command output, or absolute path crosses the boundary.
+    expect(payload).not.toContain(DIFF_SENTINEL);
+    expect(payload).not.toContain(OUTPUT_SENTINEL);
+    expect(payload).not.toContain(TEST_ROOT);
+  });
+
+  test("tamper is true only when the run control receipt stopped with a policy code", async () => {
+    const missionDir = await writeCriteriaMission("criteria-tamper", {
+      checks: [{ name: "ok", command: "node -e \"process.exit(0)\"" }],
+    });
+    await writeRunControl(missionDir, "criteria-tamper", "20260101T000000Z-abcdef", "policy");
+
+    let payload = "";
+    answerAllWith(1, (body) => { payload = body; });
+    const result = await verifyMission(TEST_ROOT, "criteria-tamper", { useSandbox: false });
+
+    expect((JSON.parse(payload) as { state: { tamper: boolean } }).state.tamper).toBe(true);
+    expect(result.status).toBe("failed");
+    const artifact = await readVerification("criteria-tamper");
+    expect(artifact.findings.some((f: { message: string }) => /tamper detected/.test(f.message))).toBe(true);
+  });
+
+  test("tamper stays false for a non-policy stop code and cannot manufacture a failure", async () => {
+    const missionDir = await writeCriteriaMission("criteria-no-tamper", {
+      checks: [{ name: "ok", command: "node -e \"process.exit(0)\"" }],
+    });
+    await writeRunControl(missionDir, "criteria-no-tamper", "20260101T000000Z-fedcba", "timeout");
+
+    let payload = "";
+    answerAllWith(1, (body) => { payload = body; });
+    const result = await verifyMission(TEST_ROOT, "criteria-no-tamper", { useSandbox: false });
+
+    expect((JSON.parse(payload) as { state: { tamper: boolean } }).state.tamper).toBe(false);
+    expect(result.status).toBe("passed");
+  });
+});
+
 describe("acceptance criteria (UH-54)", () => {
   async function writeMissionWithAcs(id: string, opts: {
     requiredChecks?: Array<{ name: string; command?: string }>;
diff --git a/tests/worktree-lock.test.ts b/tests/worktree-lock.test.ts
new file mode 100644
index 0000000..cfb7e11
--- /dev/null
+++ b/tests/worktree-lock.test.ts
@@ -0,0 +1,232 @@
+/**
+ * Worktree lock regression tests.
+ *
+ * `git worktree prune` can be run from ANY linked worktree and deletes the
+ * administrative registration of every worktree whose directory is missing at
+ * that moment — including worktrees owned by another controller or parked on a
+ * removable/network volume. In either case the surviving directory becomes "not
+ * a git repository" even once it comes back. UH must therefore:
+ *
+ *   (a) create its worktrees locked (`git worktree add --lock --reason …`),
+ *   (b) unlock + remove on teardown, and
+ *   (c) never prune globally — when a worktree directory vanishes out of band
+ *       it drops only that one registration and tolerates a refusal.
+ *
+ * These tests drive real `git` inside a throwaway repository (never the repo
+ * under test) and assert the lock/registration guarantees end to end.
+ */
+import { describe, test, expect, beforeEach, afterEach } from "vitest";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { mkdir, mkdtemp, realpath, rename, rm, stat, writeFile } from "node:fs/promises";
+import { dirname, join, normalize } from "node:path";
+import { tmpdir } from "node:os";
+import { defaultGitOps } from "../src/harness/team-run.js";
+import { GitWorktreeBackend } from "../src/harness/sandbox-backends.js";
+
+const execFileP = promisify(execFile);
+
+let ROOT: string;
+
+async function git(root: string, args: string[]): Promise<string> {
+  const { stdout } = await execFileP("git", ["-C", root, ...args]);
+  return stdout;
+}
+
+async function initGitRepo(root: string): Promise<void> {
+  await git(root, ["init", "-q", "-b", "main"]);
+  await git(root, ["config", "user.email", "test@example.com"]);
+  await git(root, ["config", "user.name", "Test"]);
+  await git(root, ["config", "commit.gpgsign", "false"]);
+  await git(root, ["config", "core.autocrlf", "false"]);
+  await writeFile(join(root, "README.md"), "# Test\n", "utf-8");
+  await git(root, ["add", "README.md"]);
+  await git(root, ["commit", "-q", "-m", "init"]);
+}
+
+interface WorktreeEntry {
+  path: string;
+  locked: boolean;
+  lockReason?: string;
+}
+
+/** Parse `git worktree list --porcelain` blocks, keeping only what we assert on. */
+async function listWorktrees(root: string): Promise<WorktreeEntry[]> {
+  const stdout = await git(root, ["worktree", "list", "--porcelain"]);
+  const entries: WorktreeEntry[] = [];
+  let current: WorktreeEntry | undefined;
+  for (const line of stdout.split(/\r?\n/)) {
+    if (line.startsWith("worktree ")) {
+      current = { path: normalize(line.slice("worktree ".length).trim()), locked: false };
+      entries.push(current);
+    } else if (current && line === "locked") {
+      current.locked = true;
+    } else if (current && line.startsWith("locked ")) {
+      current.locked = true;
+      current.lockReason = line.slice("locked ".length).trim();
+    }
+  }
+  return entries;
+}
+
+function findWorktree(entries: WorktreeEntry[], worktreePath: string): WorktreeEntry | undefined {
+  const target = normalize(worktreePath);
+  return entries.find((entry) => entry.path === target);
+}
+
+/** Create only the PARENT of a worktree path; `git worktree add` makes the leaf. */
+async function makeParentDir(worktreePath: string): Promise<void> {
+  await mkdir(dirname(worktreePath), { recursive: true });
+}
+
+beforeEach(async () => {
+  const dir = await mkdtemp(join(tmpdir(), "uh-worktree-lock-"));
+  ROOT = await realpath(dir);
+  await initGitRepo(ROOT);
+});
+
+afterEach(async () => {
+  if (ROOT) await rm(ROOT, { recursive: true, force: true });
+});
+
+describe("worktree locking (a): creation registers a locked worktree", () => {
+  test("GitWorktreeBackend.materialize locks the worktree", async () => {
+    const worktreePath = join(ROOT, ".harness", "sandboxes", "alpha", "worktree");
+    await makeParentDir(worktreePath);
+    const backend = new GitWorktreeBackend();
+
+    const result = await backend.materialize({ root: ROOT, sandboxId: "alpha", worktreePath, baseRef: "HEAD" });
+    expect(result.branch).toBe("sandbox/alpha");
+
+    const entry = findWorktree(await listWorktrees(ROOT), worktreePath);
+    expect(entry).toBeDefined();
+    expect(entry!.locked).toBe(true);
+    // No run id is available to this code path; the branch is the identifier.
+    expect(entry!.lockReason ?? "").toContain("sandbox/alpha");
+  });
+
+  test("defaultGitOps.addWorktree locks the worktree", async () => {
+    const worktreePath = join(ROOT, "wt-team");
+    await makeParentDir(worktreePath);
+
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/backend", worktreePath, "HEAD");
+
+    const entry = findWorktree(await listWorktrees(ROOT), worktreePath);
+    expect(entry).toBeDefined();
+    expect(entry!.locked).toBe(true);
+    expect(entry!.lockReason ?? "").toContain("uh/team/m/backend");
+  });
+});
+
+describe("worktree locking (b): teardown of a locked worktree succeeds", () => {
+  test("GitWorktreeBackend.teardown removes the locked registration", async () => {
+    const worktreePath = join(ROOT, ".harness", "sandboxes", "beta", "worktree");
+    await makeParentDir(worktreePath);
+    const backend = new GitWorktreeBackend();
+    await backend.materialize({ root: ROOT, sandboxId: "beta", worktreePath, baseRef: "HEAD" });
+    expect(findWorktree(await listWorktrees(ROOT), worktreePath)?.locked).toBe(true);
+
+    const result = await backend.teardown(
+      { root: ROOT, worktreePath, branch: "sandbox/beta" },
+      { force: true, keepBranch: false },
+    );
+
+    expect(result.branch_removed).toBe(true);
+    expect(findWorktree(await listWorktrees(ROOT), worktreePath)).toBeUndefined();
+    await expect(stat(worktreePath)).rejects.toThrow();
+  });
+
+  test("defaultGitOps.removeWorktree removes the locked registration", async () => {
+    const worktreePath = join(ROOT, "wt-team-remove");
+    await makeParentDir(worktreePath);
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/worker", worktreePath, "HEAD");
+    expect(findWorktree(await listWorktrees(ROOT), worktreePath)?.locked).toBe(true);
+
+    await defaultGitOps.removeWorktree(ROOT, worktreePath);
+
+    expect(findWorktree(await listWorktrees(ROOT), worktreePath)).toBeUndefined();
+    await expect(stat(worktreePath)).rejects.toThrow();
+  });
+});
+
+describe("worktree locking (c): tearing one down never prunes a hidden sibling", () => {
+  test("a hidden UH worktree stays registered and works again once renamed back", async () => {
+    const hiddenFrom = join(ROOT, "wt-c-a");
+    const teardownPath = join(ROOT, "wt-c-b");
+    await makeParentDir(hiddenFrom);
+    await makeParentDir(teardownPath);
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/a", hiddenFrom, "HEAD");
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/b", teardownPath, "HEAD");
+
+    // Hide A: its directory is gone from git's perspective, but its
+    // registration (and lock) must remain untouched by B's teardown.
+    const parked = `${hiddenFrom}-parked`;
+    await rename(hiddenFrom, parked);
+
+    await defaultGitOps.removeWorktree(ROOT, teardownPath);
+
+    let entries = await listWorktrees(ROOT);
+    expect(findWorktree(entries, hiddenFrom)).toBeDefined();
+    expect(findWorktree(entries, teardownPath)).toBeUndefined();
+
+    // Bring the volume back: the hidden worktree is usable again.
+    await rename(parked, hiddenFrom);
+    expect((await git(hiddenFrom, ["status", "--porcelain"])).trim()).toBe("");
+
+    entries = await listWorktrees(ROOT);
+    const restored = findWorktree(entries, hiddenFrom);
+    expect(restored).toBeDefined();
+    expect(restored!.locked).toBe(true);
+  });
+});
+
+describe("worktree locking (d): teardown of a deleted worktree is safe and isolated", () => {
+  test("defaultGitOps.removeWorktree does not throw and leaves other registrations alone", async () => {
+    const deleted = join(ROOT, "wt-d-deleted");
+    const sibling = join(ROOT, "wt-d-sibling");
+    await makeParentDir(deleted);
+    await makeParentDir(sibling);
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/deleted", deleted, "HEAD");
+    await defaultGitOps.addWorktree(ROOT, "uh/team/m/sibling", sibling, "HEAD");
+
+    // This worktree's directory was deleted out of band...
+    await rm(deleted, { recursive: true, force: true });
+    // ...and a sibling is parked on a removable volume (directory missing too).
+    const parked = `${sibling}-offline`;
+    await rename(sibling, parked);
+
+    await expect(defaultGitOps.removeWorktree(ROOT, deleted)).resolves.toBeUndefined();
+
+    // A global `git worktree prune` would have dropped the sibling too.
+    expect(findWorktree(await listWorktrees(ROOT), sibling)).toBeDefined();
+
+    await rename(parked, sibling);
+    expect((await git(sibling, ["status", "--porcelain"])).trim()).toBe("");
+  });
+
+  test("GitWorktreeBackend.teardown of a deleted worktree is safe and isolated", async () => {
+    const backend = new GitWorktreeBackend();
+    const deleted = join(ROOT, ".harness", "sandboxes", "gone", "worktree");
+    const sibling = join(ROOT, ".harness", "sandboxes", "kept", "worktree");
+    await makeParentDir(deleted);
+    await makeParentDir(sibling);
+    await backend.materialize({ root: ROOT, sandboxId: "gone", worktreePath: deleted, baseRef: "HEAD" });
+    await backend.materialize({ root: ROOT, sandboxId: "kept", worktreePath: sibling, baseRef: "HEAD" });
+
+    await rm(deleted, { recursive: true, force: true });
+    const parked = `${sibling}-offline`;
+    await rename(sibling, parked);
+
+    await expect(
+      backend.teardown(
+        { root: ROOT, worktreePath: deleted, branch: "sandbox/gone" },
+        { force: true, keepBranch: false },
+      ),
+    ).resolves.toBeDefined();
+
+    expect(findWorktree(await listWorktrees(ROOT), sibling)).toBeDefined();
+
+    await rename(parked, sibling);
+    expect((await git(sibling, ["status", "--porcelain"])).trim()).toBe("");
+  });
+});