48 lines
3.0 KiB
Markdown
48 lines
3.0 KiB
Markdown
# Checkpoint 60B.93 — Investigation Ownership Preservation
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## Starting state
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- HEAD: `d908f37`
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- Branch: `feature/decision-closure-ownership-v0.47`
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## Two ownership invariants implemented
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### 1. Substantive-tie active ownership (lib/graph/utils.js)
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When all leading structural candidates are tied after score, structural, and semantic checks, the currently active investigation target (`activeUnknownNodeId`) is preserved as the selection winner — provided it remains eligible (unresolved, not contradicted) and among the top ties. Stable label/display-order ordering is only used as a final fallback when there is no active candidate or the active node does not remain tied.
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### 2. Question-rejection active ownership (lib/graph/apply-proposal.js)
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When a selected candidate's graph-backed question formulation is rejected as too complex (decomposition-required), the system does NOT reseat investigation ownership to another candidate. The original selection target retains its identity with `selectedQuestion = null` and an explicit rejection reason.
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## Six exact verification commands and results
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| # | Command | Result |
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|---|---------|--------|
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| 1 | `npx vitest run tests/graph/utils.test.js` | PASS (83/83) |
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| 2 | `npx vitest run tests/graph/orchestrator.test.js -t "retains ownership when the strongest target's formulated question is rejected"` | PASS |
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| 3 | `npx vitest run tests/graph/orchestrator.test.js -t "replays the captured live product-launch start graph through deterministic graph-backed question selection"` | PASS |
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| 4 | `npx vitest run tests/graph/apply-proposal.test.js -t "QUESTION_CONTINUATION"` | PASS |
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| 5 | `npx vitest run tests/graph/question-formulator.test.js -t "60B.84"` (located in question-formulator, not apply-proposal) | PASS |
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| 6 | `npx vitest run tests/graph/apply-proposal.test.js -t "State B"` | PASS |
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## Classification: A — CHECKPOINT GREEN
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## Captured fixture path
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`tests/fixtures/live-product-launch-start-response.json`
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## Reasoning files included
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- `lib/graph/utils.js` — `classifyCandidateOrdering()` active-node tie preservation
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- `tests/graph/utils.test.js` — 5 new/modified ownership guard tests
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- `lib/graph/apply-proposal.js` — question-rejection no-res eating invariant
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- `tests/graph/orchestrator.test.js` — 2 new product-launch regression tests
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## What this checkpoint establishes
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1. Active investigation ownership is preserved across complete substantive ties when the active node remains eligible.
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2. Question-formulation rejection does not transfer ownership to a weaker candidate.
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3. Neither fix breaks QUESTION_CONTINUATION, 60B.84, or State B.
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4. The captured live product-launch case deterministically preserves ntpt9ki as the active target through question rejection.
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## What remains unproved
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- Live behavioural validation of the fixes in a full product-launch interaction
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- Whether same-target reformulation would produce better user outcomes than no-question
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- Full-suite state beyond these six guards
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- The correctness of the underlying question-complexity heuristic (separate concern)
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