feat: v8 ctx-split swimlane design prototype#121
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v8 redesigns the swimlane turn bar from cost-centric to context-centric: - Bar height = ctx window % (was: cost), split into cache read/write/input - Zone via 40%/80% threshold lines (was: bar hue / bottom border) - Cost moved to dedicated 8px mini-bar track with orange outlier coloring - 4 event tracks (Faults/Context/Mutations/Safety) with exclusive color families, max 4 dot types per track, zero cross-track color collisions - 3-state interaction: Idle → Hover (1..N cumulative) → Locked - Cross-lane dim (0.35) + global cursor guide + per-lane guide uniqueness - Collapsed shows Faults + Safety only (~6 dots/50 turns) Design process: 4 expert subagents (Tufte/Charity Majors/Munzner/Willison) → 3-round autoresearch (R1 7.41 → R2 8.53 → R3 9.03). Zone display had separate autoresearch (bands 5.95 rejected → threshold lines 9.0 accepted). Adds: v7-vs-v8.html prototype, navigation index.html, 3 screenshots, DESIGN-DECISIONS.md v8 section + 6 new lessons, README.md v8 section. Removes: redundant v5-proto.html. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Jul 4, 2026
…ation Lane label gutter (240px) becomes a 3-row agent info block: - Row 1 (11px): agent name — detected agentLabel; child lanes append the 8-char session id; fallback subagent-<model> when the request has no system prompt to detect from - Row 2 (10px): model · context window size - Row 3 (10px): sysprompt version chips, one per distinct coreHash in first-seen order, width-budgeted (~196px) with +n overflow. Chip click locks the turn where that version first appeared; ↗ opens the System Prompt page pre-selected via spPendingDeepLink state handoff (URL params don't survive syncUrlFromState's rebuild — the prompt badge has the same latent race). Hashes/keys are validated (hex / safe charset) before innerHTML interpolation since escapeHtml doesn't cover quotes. Lane classification is agent-identity-first: main keys (orchestrator / sdk-agent / codex default) always go to the main lane regardless of model switches or the isSubagent flag — a mid-session opus→fable switch no longer splits the orchestrator into a phantom sub-lane (157c0faa: 32/287 turns split, sub-lane literally named "Orchestrator"). Other keys get an agent-<key> lane named by agentLabel. Model/ctx heuristics remain as fallback for entries without agent identity. Main lane is longest and on top; sub lanes sort by first-turn time. Lane selection with no locked turn renders the last turn's Timeline detail directly (its request carries the whole conversation = full range) with no lock visuals — _wfShowTurnDetail suppresses the selectTurn → wfHighlightTurn echo. No flat-list intermediate state. Closes #121 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Summary
v7-vs-v8.htmlprototype, navigationindex.html, 3 screenshots, design docsFiles changed
prototype/swimlane/v7-vs-v8.htmlprototype/swimlane/index.htmlprototype/swimlane/assets/v8-*.pngprototype/swimlane/DESIGN-DECISIONS.mdprototype/swimlane/README.mdTest plan
python3 -m http.server 8199 --directory prototype/swimlane→ openhttp://localhost:8199/🤖 Generated with Claude Code