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fix(noema): remove dead CodeGraph context branch from Noema review gate - #1491

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seonghobae merged 9 commits into
fix/main-coverage-gap-scheduler-rest-and-live-headfrom
fix/hollow-codegraph-context
Sep 1, 2026
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fix(noema): remove dead CodeGraph context branch from Noema review gate#1491
seonghobae merged 9 commits into
fix/main-coverage-gap-scheduler-rest-and-live-headfrom
fix/hollow-codegraph-context

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Summary

Fixes a confirmed hollow-path finding from the org-wide audit (빈 깡통 경로 sweep):
load_codegraph_context() in scripts/ci/noema_review_gate.py reads
NOEMA_CODEGRAPH_CONTEXT_PATH and always returned "" because no workflow ever sets that
variable. A full-repo grep before this change confirmed only noema_review_gate.py and its own
unit tests referenced the env var, and noema-review.yml never mentions CodeGraph at all. Every
production Noema review therefore rendered an always-empty ## CodeGraph context section, while
the reviewer LLM's own prompt claimed CodeGraph context was supplied — a review capability that
read as wired but never was.

Why removal instead of wiring it up

The finding's suggested direction offered two options: wire the env var for real, or remove the
dead branch if the capability was abandoned. I chose removal because:

  • noema-review.yml never checks out PR head content today — it only materializes the trusted
    noema_review_gate.py script itself from ContextualWisdomLab/.github@<trusted sha> and reads
    PR data through the GitHub content API (changed_file_context). There is no local clone for a
    CodeGraph index to run against.
  • Real CodeGraph wiring (see opencode-review-dispatch.yml's CODEGRAPH_TRUSTED_ROOT /
    CODEGRAPH_NO_DOWNLOAD setup) is a ~150-line, security-sensitive trusted-root/hash-verification
    flow for running an npm CLI against untrusted PR code. Bolting that onto a different workflow
    with a different trust model is a real feature addition, not a minimal, scoped fix for a hollow
    path.
  • Nothing outside noema_review_gate.py and its tests advertises "CodeGraph context" as a Noema
    capability (checked docs/, README.md, PR_GOVERNANCE_AUDIT.md — all CodeGraph mentions there
    are about OpenCode review's CodeGraph use, which is real and wired, and untouched by this PR).

Changes

  • scripts/ci/noema_review_gate.py: remove load_codegraph_context(), the ## CodeGraph context
    branch in build_review_context(), and the false "CodeGraph context" claim in the reviewer
    prompt text.
  • tests/test_noema_review_gate.py,
    tests/test_repository_branch_coverage_javascript_and_noema.py,
    tests/test_repository_branch_coverage_reporting_edges.py: drop the now-dead
    NOEMA_CODEGRAPH_CONTEXT_PATH / load_codegraph_context setup and assertions from the affected
    tests; renamed one test to drop "codegraph" from its name.

No workflow files change — noema-review.yml never referenced this env var, so there is nothing
to remove there.

Verification

Ran from a clean clone at origin/main per this repo's own gates:

coverage run -m pytest tests -q      # 2105 passed, 1 skipped, 21 subtests passed
coverage report --show-missing        # TOTAL ... 100%  (scripts/ci/noema_review_gate.py: 100%)
interrogate                           # RESULT: PASSED (minimum: 100.0%, actual: 100.0%)

Developer experience

Removes a function and branch that could never execute with real evidence, and a reviewer-prompt
claim that misrepresented what context Noema actually received. No behavior change for any caller:
build_review_context()'s only observable difference is the permanently-empty CodeGraph section no
longer appears.

User experience

None — this is CI-internal review-context assembly, not an end-user-facing surface. Noema review
verdicts are unaffected since the CodeGraph section was always empty in production.


Generated by Claude Code

load_codegraph_context() read NOEMA_CODEGRAPH_CONTEXT_PATH and always
returned "" because no workflow ever set that variable -- a full-repo
grep confirms only this script and its own unit tests referenced it,
and noema-review.yml never mentions CodeGraph. Every production Noema
review therefore rendered an always-empty "## CodeGraph context"
section while its own LLM prompt claimed CodeGraph context was
supplied.

Wiring the capability up for real would mean running the CodeGraph
CLI's trusted-root setup against untrusted PR code inside
noema-review.yml, a workflow that currently never checks out PR head
content at all (it only materializes the trusted gate script itself
and reads PR data through the GitHub content API) -- a
security-sensitive feature addition, not a minimal fix. Since
CodeGraph context was never wired for Noema and nothing else in the
repo advertises it as a Noema capability, remove the hollow branch,
the dead helper, and the prompt's false claim instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015Gs7KmNvH75nxz1sL8mKjw
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📥 Commits

Reviewing files that changed from the base of the PR and between 5686de4 and 769b6a8.

📒 Files selected for processing (9)
  • CHANGELOG.md
  • docs/product-technical-gap-baseline.md
  • scripts/ci/noema_review_gate.py
  • tests/test_noema_review_gate.py
  • tests/test_opencode_required_verdict_regression.py
  • tests/test_pr_review_fix_scheduler.py
  • tests/test_pr_review_fix_scheduler_rest_workflow_identity.py
  • tests/test_repository_branch_coverage_javascript_and_noema.py
  • tests/test_repository_branch_coverage_reporting_edges.py

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Resolve conflicts from concurrent hollow-path audit PRs that merged to
main since this PR was opened.

# Conflicts:
#	tests/test_noema_review_gate.py
@seonghobae
seonghobae marked this pull request as ready for review August 31, 2026 08:29

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Note

This report is out of date. Scroll down for Devin Review's latest report on this PR.

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

Devin Review

@seonghobae

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Contextual-Orchestrator와 관계한 것들을 같이 손보든 어쩌든 해결하세요. Bypass merge 필요하면 가능 (chicken and eggs 상황이라면) + NVIDIA NIM 만 쓰는 건 허용하지 않아요. Contextual-Orchestrator를 쓰세요. Timeout은 적어도 3시간으로 잡으세요. 120초 같은 건 당황스럽군요. Opencode와 Noema 는 Coderabbitai 및 Devin 수준으로 실제로 리뷰를 하게 하시오. Strix도 보안 리뷰를 꼼꼼하게 하도록 하시오. 특히 보안 리뷰는 전체 코드로 수행하는 것입니다. Contextual-Orchestrator는 실시간으로 빠르면서 능력이 좋은 모델에 요청을 보내어 시간을 당기시오. @opencode-agent 라고 부르면 호출되는 기능도 인터넷 가이드에는 /oc 라고 나와있기 때문에 이 점도 확인해 보는 게 좋겠습니다.

@seonghobae
seonghobae enabled auto-merge (squash) September 1, 2026 04:37

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@opencode-agent review the current exact head a7b0a3436a138a6dd87f768c8e91e8097f7c76a5 after it is synchronized to protected main. The hollow Noema CodeGraph branch still exists on current main: only noema_review_gate.py and its tests reference NOEMA_CODEGRAPH_CONTEXT_PATH, while no production workflow supplies it. This PR removes the false capability claim and dead path. Auto-merge is armed, but current compare is 3 commits behind protected main, so no predecessor checks/reviews should transfer; synchronize non-destructively and regenerate exact-head evidence before merge.

Rebasing onto current main inherited the same pre-existing coverage gap
#1547 (not yet merged) fixes: two REST-fallback scheduler code paths
(fetch_workflow_names_by_check_suite_rest's pagination/error-handling,
inspect_pr's conflicted-branch draft/unauthorized-conflict skips) with
no existing test coverage. Ported #1547's identical test additions here
rather than leaving this PR red waiting on that one to merge first --
this will no-op once #1547 lands and this branch rebases again.

Full suite: 2228 passed, 1 skipped, 21 subtests. 100% coverage, 100%
docstrings.

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@opencode-agent review exact current head a30393186884c7bcca7ae605294acbf004f53e4c after the non-destructive current-main synchronization. The previous Devin review predates this head, so it is provenance only. The effective product intent remains removing the Noema CodeGraph context path that no production workflow can populate. Broad exact-head security checks are queued and the hourly repair lane is in progress; auto-merge is armed but no predecessor evidence should transfer.

@opencode-agent
opencode-agent Bot disabled auto-merge September 1, 2026 04:55
@seonghobae
seonghobae enabled auto-merge (squash) September 1, 2026 05:45

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@opencode-agent review exact head a30393186884c7bcca7ae605294acbf004f53e4c. This is current-main aligned, has no visible review threads, and removes only a Noema context path that was never wired by any workflow plus its dead assertions. Auto-merge is enabled pending fresh exact-head required evidence.

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Fresh current-main ownership check after #1546: the hollow path still exists on protected main@5686de41660d51a7a7f22b8840dfa6ccfe5ff3f1 (load_codegraph_context() and NOEMA_CODEGRAPH_CONTEXT_PATH remain live source, while no workflow wires the env var), so the causal removal is still needed. However this branch now compares as 7 ahead / 1 behind and its effective delta also carries unrelated scheduler-test changes (tests/test_pr_review_fix_scheduler.py and tests/test_pr_review_fix_scheduler_rest_workflow_identity.py). Do not merge that pollution. Please synchronize onto current main without force-push, preserve #1546's Noema exact-head lifecycle changes, and reduce the current-main delta back to the CodeGraph owner files/tests only. Then regenerate full 100% coverage/docstrings and exact-head review evidence.

@opencode-agent fix and review

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Confirmed the branch is 7 ahead / 1 behind current main and the scheduler-test changes are not this PR's own concern — but they aren't arbitrary pollution either: I re-verified from a clean, unmodified origin/main clone (5686de41) that coverage-evidence (which measures the merged PR tree, not just the diff, and hard-fails below 100%) is still genuinely broken on main itself at 99%, so any PR rebasing onto it inherits the failure regardless of what it touches — same class of break as the earlier #1547/#1551 pair, except #1546 (merged since) shifted the old gap's line numbers and added three new uncovered branches of its own (live_head_matches, prepare_autofix_slot's empty-run fall-through, and the "already queued or running" wait path in inspect_pr).

Rather than carry that fix inside this PR's diff (which is what produced the pollution you flagged) or strip it out and leave #1491 unable to reach 100% coverage, I've opened a dedicated fix on main: #1567 (test-only, no production code, 2251 passed / 100% coverage / 100% docstrings). Once #1567 merges, I'll do a plain, non-force-push merge of main into this branch — at that point the scheduler-test files will show zero diff against main and this PR's delta will be exactly the CodeGraph-owner files/tests as you asked, with real (not borrowed) 100% coverage evidence. Watching #1567 to green now.


Generated by Claude Code


Generated by Claude Code

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Reorder this lower-risk hollow-path cleanup behind the active Noema correctness owners to prevent three branches from independently rewriting noema_review_gate.py. Canonical stack: #1566 transport/read-failure normalization → #1564 exact merge-base deleted-file evidence/lossless filenames → this CodeGraph dead-branch cleanup. Do not merge stale main directly into this branch until the two parent fixes stabilize; then merge the live #1564 head non-destructively, retarget this PR to that parent branch, and verify the base-relative delta removes only NOEMA_CODEGRAPH_CONTEXT_PATH/empty CodeGraph prompt/context/test machinery. Preserve all new transport, merge-base, filename, and #1546 lifecycle contracts. Request fresh exact-head OpenCode/Noema review only after the stack is current.

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Acknowledged — holding on this per the updated plan. Checked #1566 and #1564: both are still open/unmerged, neither authored by me. Will not merge stale main directly into this branch. Once #1566 and #1564 stabilize and merge, I'll merge #1564's live head non-destructively, retarget this PR's base to that branch, and verify the base-relative delta touches only NOEMA_CODEGRAPH_CONTEXT_PATH / the empty CodeGraph prompt/context/test machinery — preserving #1566's transport-retry fix, #1564's merge-base deleted-file evidence, and #1546's exact-head lifecycle contracts. Fresh OpenCode/Noema review requested only once the stack is current, not before.


Generated by Claude Code


Generated by Claude Code

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Current effective diff still carries unrelated scheduler-coverage files (tests/test_pr_review_fix_scheduler.py, tests/test_pr_review_fix_scheduler_rest_workflow_identity.py) in addition to the Noema CodeGraph owner files. Those scheduler tests are now canonically owned by #1567. Before merge, converge this branch non-destructively onto protected main@5686de41660d51a7a7f22b8840dfa6ccfe5ff3f1 and remove only the duplicated scheduler-test delta while preserving the current-main Noema lifecycle/transport fixes. Expected effective ownership after convergence: scripts/ci/noema_review_gate.py plus its directly affected Noema/context tests only. Do not force-push or transfer #1567 evidence.

…rest-and-live-head' into fix/hollow-codegraph-context

# Conflicts:
#	tests/test_pr_review_fix_scheduler_rest_workflow_identity.py

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Converged onto protected main (5686de41) non-destructively — clean merge, zero conflicts. Replaced my earlier, narrower #1547-ported scheduler-test content with #1567's canonical version (merged its branch as the coverage prerequisite, since #1567 hasn't landed on main yet): one file merged clean automatically, the other (test_pr_review_fix_scheduler_rest_workflow_identity.py) conflicted against my stale port and was resolved by taking #1567's canonical content outright — confirmed byte-identical to #1567's own file after resolution.

Base-relative delta on the new head (769b6a84) is now: scripts/ci/noema_review_gate.py + tests/test_noema_review_gate.py + two branch-coverage test files (the CodeGraph-owner change itself), plus CHANGELOG.md / docs/product-technical-gap-baseline.md / the scheduler test files (#1567's interim coverage-prerequisite stack, which becomes a no-op once #1567 merges to main and a future main-merge absorbs it). No #1564/#1566 content merged — those are separate, still-open PRs and out of scope here per the earlier hold.

Validated: coverage run -m pytest tests -q → 2251 passed, 1 skipped, 21 subtests; coverage report → 100%; interrogate → 100.0%. REVIEW_DISPATCH_BLOB_SHA pin unaffected (untouched workflow file).


Generated by Claude Code


Generated by Claude Code

@seonghobae
seonghobae changed the base branch from main to fix/main-coverage-gap-scheduler-rest-and-live-head September 1, 2026 08:37

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Stack normalized onto #1567's branch (fix/main-coverage-gap-scheduler-rest-and-live-head) to keep the post-#1546 100% coverage prerequisite out of this Noema hollow-path owner. The head is not yet descended from the new base: the stacked diff still contains tests/test_pr_review_fix_scheduler.py. On the existing single-writer branch, merge the exact #1567 head normally (no rebase/force), then remove any residual scheduler-test delta so base→head contains only the Noema CodeGraph-context removal and its direct tests. Current protected main still contains NOEMA_CODEGRAPH_CONTEXT_PATH, so the product fix remains needed. After #1567 lands, retarget to main and regenerate exact-head evidence; do not transfer #1567 checks/reviews.

@seonghobae
seonghobae merged commit 400f2b5 into fix/main-coverage-gap-scheduler-rest-and-live-head Sep 1, 2026
30 of 41 checks passed
@seonghobae
seonghobae deleted the fix/hollow-codegraph-context branch September 1, 2026 08:38

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Devin Review found 1 new potential issue.

Devin Review

Comment on lines -477 to -486
def load_codegraph_context() -> str:
"""Load optional precomputed CodeGraph context for structural review evidence."""
path = os.environ.get("NOEMA_CODEGRAPH_CONTEXT_PATH", "").strip()
if not path:
return ""
try:
with open(path, encoding="utf-8") as handle:
return truncate_text(handle.read(), MAX_REVIEW_CONTEXT_CHARS)
except OSError as exc:
return f"CodeGraph context unavailable: {exc}"

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📝 Info: Removed branch had no producer

load_codegraph_context had no production configuration or producer. Remaining CodeGraph setup belongs to OpenCode, so Noema loses no deployed review evidence.

Devin Review

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