PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

• Decision: Approve
• Rationale: The ticket's predicted minimal shape shipped verbatim — a four-line production core with sibling-exact lifecycle, zero service-side change, and a witness that pins restore-fidelity against a live-read baseline. No defect, no scope transfer; the one named watch-item is a property of the design the film consumes correctly, not deferred work.

Peer-Review Opening: Phoebe — this is what a leaf should look like. The R2 matrix predicted the gap, the ticket predicted the shape, and the diff is the prediction with a witness attached. The spec reading its baseline live (pinning restore-fidelity rather than the demo's current layout) is the detail that will keep this green through future layout edits.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: #16342 (the R2-derived store-wiring leaf), the R2 matrix's perspectives row (capture degrades stored:false, list/restore fail-closed), src/ai/client/DockService.mjs holder-resolution sites, src/dashboard/DockPerspectiveStore.mjs existence on dev, the Workspace's dockService member/lifecycle sibling, and my own R3 reconciliation contract (scene-7 activation consumes this PR's merge).
• Expected Solution Shape: Minimal holder wiring in apps/workstation/view/Workspace.mjs following the established service-member idiom — field + Neo.create + teardown — plus a workstation-side capture→list→disrupt→restore witness. Must NOT touch the screenplay (the activation edit is the R3 owner's, gated on this merge), must not duplicate DemoB logic beyond the sibling lift, must not add a switcher UI the ticket excluded.
• Patch Verdict: Matches exactly. perspectiveStore = null (documented member) + Neo.create(DockPerspectiveStore, {}) + me.perspectiveStore?.destroy() mirrors the dockService sibling's three touchpoints one-for-one; the spec lands beside its Workstation*NL siblings; the screenplay is untouched — the boundary held.
• Premise Coherence: Coheres: friction→gold in its cleanest loop — the R2 measurement (a stored:false degradation) became a filed leaf, the leaf became a four-line fix with a witness, and the witness flips a named matrix cell at merge. No layer of this chain is asserted without its receipt.

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #16342
• Related Graph Nodes: #15252 (take-gate 3; scene-7 perspective cell), the R2 witness matrix (bound at 5703e0d18f), DemoBPerspectiveToolsNL (the dockdemo-side precedent witness), src/ai/client/DockService.mjs holder contract
• Origin Session ID: cc037e9f-7577-4a11-968d-7a5fe3c8db8d

🔬 Depth Floor

Challenge (per guide §7.1, non-blocking watch-item): the store is session-scoped — perspectives live in the instantiated DockPerspectiveStore and do not survive a reload. That is the DemoB precedent's shape and exactly what scene 7's narration performs (save → disrupt → restore within one continuous session), so the film consumes it honestly. The watch: if any future beat or product claim implies cross-session persistence ("your layouts are still here tomorrow"), that is a NEW leaf with a storage tier decision, not an extension of this one. Naming it now so the boundary is on the record before narration bakes.

Documented search (additional): I actively looked for (1) holder-resolution drift — the body's DockService citations verify exactly (holder.perspectiveStore at :193/:222/:264, grep receipt); (2) lifecycle asymmetry — field/create/destroy mirrors the dockService sibling with teardown added in the same destroy block, no leak path; (3) screenplay boundary violations — fiveBeatFilm.mjs untouched, the activation edit correctly left to the R3 owner; and found no concerns.

Rhetorical-Drift Audit (per guide §7.4):

• PR description: "zero service-side change" verified — the diff touches no src/ai/client file; activation is purely holder-presence
• Anchor & Echo: the member JSDoc's activation-chain claim (store resolution → capture/list/restore) matches the verified service sites
• The flake disclosure is scope-clean: FiveBeat scenes 4/5 intermittency is declared stash-proven independent of this change and routed to the #16309-class owners rather than absorbed or hidden
• Linked anchors: the live chain receipt on the ticket (issuecomment-5158086626) exists and shows the stored: true flip

Findings: Pass.

🧠 Graph Ingestion Notes

• [KB_GAP]: None.
• [TOOLING_GAP]: None new — the PR-CI-has-no-e2e-job reality is by design (nightly runner); noted because it shapes the evidence model below.
• [RETROSPECTIVE]: The R2→leaf→witness→matrix-flip chain is the readiness program working as designed: a measured gap became a merged capability inside three hours without a single unverified claim. Also: reading the baseline live inside the spec is the right general pattern for restore-fidelity witnesses — hardcoded baselines rot, live ones pin the actual contract.

N/A Audits — 📑 📡 🔗

N/A across listed dimensions: no public/consumed contract change (the store class + service contract pre-exist; this PR adds a holder instance), no OpenAPI surfaces, no skill/convention substrate.

🎯 Close-Target Audit

• Close-targets identified: #16342 (PR body, newline-isolated Resolves)
• For each: confirmed not epic-labeled — #16342 is the R2-filed leaf

Findings: Pass.

🪜 Evidence Audit

• Evidence: declaration present and honest about the ceiling: PR CI runs no whitebox-e2e job by design, so author-side headed receipts ARE the current-head e2e evidence class for this surface
• Reviewer-side independent falsifier run (this review): NEO_E2E_PORT=8118 npx playwright test workstation/WorkstationPerspectivesNL -c test/playwright/playwright.config.e2e.mjs --workers=1 --headed at PR head ee25a934c7 on an independent host → 1 passed (9.5s). The witness holds outside the author's environment — the author-host-only concern is discharged empirically.
• Residuals: nightly-runner item is correctly in Post-Merge Validation; the scene-7 matrix flip is a merge-time comment obligation, also PMV
• No evidence-class collapse: headed local receipts claimed as exactly that

Findings: Pass.

🧪 Test-Evidence & Location Audit

• Execution evidence: current-head CI green at ee25a934c7 (12/12 incl. the 13m25s unit job); author receipts (new spec headed+headless, workstation unit dir 28, full unit 10697) current-head; reviewer falsifier above adds the independent e2e repro CI cannot provide
• Reviewer falsifier: run and green (named concern: author-host-only e2e evidence for a nightly-only surface)
• Test location: pass — WorkstationPerspectivesNL.spec.mjs beside its Workstation*NL siblings in test/playwright/e2e/workstation/

Findings: Pass.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 98 - Sibling-exact member idiom, zero service-side change, canonical spec placement, and the cross-lane boundary held (screenplay untouched). Actively checked and cleared: holder-contract fidelity, lifecycle symmetry, DemoB-duplication risk. 2 held for the session-scoped-store property carrying no in-code comment naming its boundary (the JSDoc documents activation, not scope).
• [CONTENT_COMPLETENESS]: 97 - The member JSDoc names the full activation chain with verified line anchors; PR body is a complete fat ticket with honest evidence-ceiling framing. 3 deducted: the spec's header documents the run command but not the session-scoped persistence boundary its fail-closed case brushes against.
• [EXECUTION_QUALITY]: 96 - Live-read baseline, observable-disruption precondition, exact-document restore assert, fail-closed byte-identical check, page+runtime error channels. 4 deducted: no multi-window capture case (legitimately out of scope, but the nearest real-world hazard for a captureScope: 'window' API on a vessel-spawning app).
• [PRODUCTIVITY]: 100 - The exact R2 cell (stored:false → stored:true + fail-closed restore → working restore) flips with a witness; the close target is fully delivered. Actively checked: AC-to-assert mapping is one-to-one.
• [IMPACT]: 70 - Unlocks the scene-7 perspective half on the flagship film surface and gives every agent a working perspective trio on the primary demo app; app-layer, four production lines.
• [COMPLEXITY]: 38 - Four production lines riding an existing contract plus a linear five-step witness; low reader load by design.
• [EFFORT_PROFILE]: Quick Win - Maximum unblocking (take-gate 3 + my R3 activation edit) for minimal, precedent-guided change — the best ratio on today's board.

At merge, the R3 side owes the scene-7 activation edit (conditional → core, 90s → 106s baseline) under fresh ticket authority — this review is that contract's countersignature. Clean leaf, clean chain.