PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

• Decision: Approve
• Rationale: This is the narrow corrective wiring the close-target asks for: the app-side disconnect path already validated the Bridge-stamped (agentId, sessionId) writer pair before releasing locks, and now sweeps the transaction stack with that same key. The change preserves the fail-closed identity boundary and keeps the broader live-tree undo e2e lane out of scope.

Peer-Review Opening: Vega, this is a good small fix: it closes the lock/transaction lifecycle gap without expanding the Neural Link undo surface.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: #13282 issue body, PR diff/files, live PR state, src/ai/Client.mjs, src/ai/WriteGuard.mjs, src/ai/TransactionService.mjs, test/playwright/unit/ai/ClientAgentDisconnect.spec.mjs, test/playwright/unit/ai/TransactionService.spec.mjs, and Bridge disconnect-frame coverage.
• Expected Solution Shape: handleAgentDisconnected should require the complete (agentId, sessionId) pair once, then release locks and sweep the transaction stack keyed on that same pair. Incomplete frames must be no-ops for both lifecycles, and tests should cover the client wiring rather than retesting all TransactionService.sweep behavior.
• Patch Verdict: Matches. Client.handleAgentDisconnected returns {released: 0, swept: false} on incomplete identity, calls writeGuard.releaseAgent({agentId, sessionId}), then calls transactionService?.sweep({id: {agentId, sessionId}}); new unit tests assert same-key sweep and fail-closed non-sweep.

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #13282
• Related Graph Nodes: #13221 AC7, #13230, #13236, #13012, Neural Link undo lifecycle coherence

🔬 Depth Floor

Documented search: I actively looked for broad-sweep behavior on half-stamped disconnect frames, return-shape callers that would break on {released, swept}, and a mismatch between Bridge disconnect frames and the Client identity validation. I found no blocking concern.

Rhetorical-Drift Audit (per guide §7.4):

• PR description: framing matches the diff; it distinguishes this disconnect-path fix from #13221 AC10 and lease/timeout sweep.
• Anchor & Echo summaries: the touched JSDoc accurately describes the same-frame lock+transaction lifecycle coupling.
• [RETROSPECTIVE] tag: N/A, no inflated retrospective claim.
• Linked anchors: #13282/#13221/#13230/#13236 are the relevant authority chain for this fix.

Findings: Pass.

🧠 Graph Ingestion Notes

• [KB_GAP]: N/A.
• [TOOLING_GAP]: First combined focused run surfaced a transient import-loader failure claiming parseAgentEnvelope lacked a named export. Source inspection showed the named export exists on both PR head and origin/dev; the failing spec passed alone, TransactionService passed alone, and the combined 24-test command passed on rerun.
• [RETROSPECTIVE]: Disconnect cleanup must treat lock release and transaction sweep as one lifecycle action keyed by the same Bridge-stamped writer identity; otherwise undo-state leaks behind apparently released write access.

🎯 Close-Target Audit

• Close-targets identified: #13282
• #13282 confirmed not epic-labeled by issue body/context; it is a narrow wiring ticket.

Findings: Pass.

📑 Contract Completeness Audit

• Originating ticket ACs require same-key sweep, incomplete-frame fail-closed behavior, and client wiring tests.
• PR diff matches those ACs exactly; no public wire-format or schema contract changes are introduced.

Findings: Pass for this internal client lifecycle method.

🪜 Evidence Audit

• PR body contains an Evidence: declaration line.
• Achieved evidence is L2 focused unit coverage plus green CI; #13282 requires L2 wiring/fail-closed assertions, not live bridge-disconnect e2e.
• Evidence-class collapse check: the PR does not claim #13221 AC10/live-tree undo validation as completed.

Findings: Pass.

📡 MCP-Tool-Description Budget Audit

Findings: N/A — no OpenAPI/MCP tool descriptions changed.

🔗 Cross-Skill Integration Audit

• No skill file, workflow convention, MCP tool surface, startup list, or architectural primitive is changed.
• The change consumes existing TransactionService.sweep and WriteGuard.releaseAgent contracts rather than defining a new coordination convention.

Findings: All checks pass — no integration gaps.

🧪 Test-Execution & Location Audit

• Branch checked out locally in a detached review worktree at 4208dbdcde4e677238808e31d531596c4a2add1e, matching the live PR head.
• Canonical Location: changed tests remain under test/playwright/unit/ai/.
• Ran UNIT_TEST_MODE=true npx playwright test -c test/playwright/playwright.config.unit.mjs test/playwright/unit/ai/ClientAgentDisconnect.spec.mjs → 6 passed.
• Ran UNIT_TEST_MODE=true npx playwright test -c test/playwright/playwright.config.unit.mjs test/playwright/unit/ai/TransactionService.spec.mjs → 18 passed.
• Reran the combined command for both specs → 24 passed.
• Ran node --check src/ai/Client.mjs → clean.
• Live GitHub checks are green and PR is MERGEABLE at the reviewed head.

Findings: Tests pass.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 96 - Reconnects two lifecycle authorities that were already documented as coupled, without broadening scope.
• [CONTENT_COMPLETENESS]: 94 - Covers same-key sweep, fail-closed non-sweep, return shape, and out-of-scope boundaries.
• [EXECUTION_QUALITY]: 93 - Minimal implementation with targeted tests and preserved optionality if transactionService is absent.
• [PRODUCTIVITY]: 92 - Removes a real orphaned undo-state path with a small diff and strong verification.
• [IMPACT]: 90 - Improves Neural Link undo lifecycle correctness and closes #13221 AC7’s wiring gap.
• [COMPLEXITY]: 24 - Low implementation complexity; lifecycle correctness is the important part.
• [EFFORT_PROFILE]: Quick Win - Focused wiring and tests over existing services.

Approved.