PR Review Summary

Status: Request Changes

🪜 Strategic-Fit Decision

• Decision: Request Changes
• Rationale: The Whitebox placement, exact component possession, and final-state bounds are correct, and the exact spec passes. The PR’s only artifact is the evidence contract, though, and the current atomic setter path does not exercise sustained feed application or prove recovery with a post-reconnect event. The fix is contained to the spec.

Peer-Review Opening: The mounted-engine proof is real: I reran the exact head and got 3/3 in 6.6s. The 12-row window, 200-event ring, 50 counted drops, 238-event fold, stale banner, and reduced-motion render all hold. The test needs one more temporal layer before it can honestly close the “real feed pressure / no frozen frame” ticket.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: Issue #14607; Whitebox E2E protocol + canonical guide; changed-file list; ActivityStream; FleetCockpit.loadActivity; FleetControlBridge.fleetActivity; sibling possession precedent; exact-head PR body/checks.
• Expected Solution Shape: A named-config Neural Link E2E that drives multiple feed applications over time (adapter seam or equivalent NL injection), asserts the bound throughout rather than only at final settle, observes the frame/motion during pressure, and proves stale→live recovery by accepting new data after reconnect.
• Patch Verdict: The patch is a good mounted final-state possession test. It applies one 250-event set() atomically, then reads the settled DOM, so it does not yet test sustained multi-delta pressure; reconnect changes only adapterState and never proves data flow resumes.
• Premise Coherence: Coheres with verify-before-assert at the engine/DOM boundary, but the “DOM re-rendering IS liveness” claim collapses a single completed render into sustained-frame evidence.

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #14607
• Related Graph Nodes: #14560; #14606; #14591; #14592; ActivityStream; FleetCockpit.loadActivity; FleetControlBridge.fleetActivity

🔬 Depth Floor

Challenge: setStream(..., {events: burst(250)}) is one App-Worker config transaction and one final render cycle. It proves capacity/final projection, but not the ticket’s repeated multi-batch application path or a non-frozen frame while updates are arriving. In the reconnect case, the rows before and after are the same 12 and no post-reconnect event is injected, so only the banner recovery is proven.

Rhetorical-Drift Audit:

• Mounted Whitebox component, DOM, and droppedCount claims are substantiated.
• “under real feed pressure” / “no frozen frame” overshoot the one-shot final-state evidence.
• “un-freezes on reconnect” overshoots a state-class flip with no new event after reconnect.

Findings: Scope drift maps directly to the two test corrections below.

🧠 Graph Ingestion Notes

• [KB_GAP]: None material. The KB found the bounded FleetControlBridge.fleetActivity authority but did not know issue #14607’s stronger temporal E2E contract.
• [TOOLING_GAP]: None. Exact-head archive + generated configs + named E2E config booted successfully against the Neural Link bridge.
• [RETROSPECTIVE]: Whitebox final-state possession proves what settled; burst liveness additionally needs a time series or repeated mid-stream observations proving how it settled.

🎯 Close-Target Audit

• Close-target identified: #14607
• #14607 is not epic-labeled.

Findings: The target is valid, but its temporal/liveness AC is not yet met.

📈 Contract Completeness Audit

Issue #14607 requires sustained burst application at the measured-rate shape, a no-frozen-frame oracle, stale-state rendering, and resumed feed after reconnect.

Findings: Final bound/fold + stale rendering + reduced motion pass. Sustained application/frame continuity and resumed data flow remain missing.

🪜 Evidence Audit

• PR body declares L3 and uses the real mounted App Worker via Neural Link.
• Exact-head spec passes 3/3 locally.
• One atomic setter call is not sustained feed pressure, and final DOM visibility is not an observe_motion/mid-stream liveness oracle.
• Reconnect has no new payload, so feed recovery is not observed.

Findings: Achieved L3 for mounted final-state behavior; below the close-target’s temporal L3 contract until the spec is extended.

📜 Source-of-Authority Audit

• Issue authority: #14607 explicitly names repeated feed pressure and observe_motion-class evidence.
• Runtime authority: FleetCockpit.loadActivity() routes fleetActivity() snapshots into stream.set(...); ActivityStream.beforeSetEvents() and refreshFeed() own the bounds/render.
• Whitebox authority: the protocol requires mid-interaction assertions for animation/consistency surfaces; final order alone is insufficient.

Findings: Correct component and fixture, incomplete temporal oracle.

N/A Audits — 📡 🔗

N/A across listed dimensions: no MCP/OpenAPI contract and no cross-skill or turn-memory convention change.

🧪 Test-Execution & Location Audit

• Exact head 00370c881fdd6563415dc1fe23452040e0c62bca extracted into an isolated archive.
• Canonical test/playwright/e2e/agentos/ location and custom fixtures.mjs Neural Link fixture.
• Named E2E config used; exact run: 3 passed (6.6s), one worker.
• Engine truth (droppedCount) paired with DOM bounds/fold state.
• No repeated/mid-stream bound checks or motion/frame oracle.
• No post-reconnect event assertion.

Findings: The test is healthy and correctly placed; its scenario depth is the blocker.

📋 Required Actions

To proceed with merging, please address the following:

• RA-1 — Turn the one-shot payload into sustained feed pressure. Drive a deterministic sequence of multiple snapshots/batches through the accepted adapter seam or equivalent NL injection, covering at least the ticket’s three-minute measured-rate shape while still crossing the 200-event ring. Assert the window/ring/fold bounds during the sequence, not only after the final batch, and add an observe_motion-class or equivalent frame-progress oracle that can fail when the UI settles only at the end. Keep the test fast by advancing event time deterministically; wall-clock sleeping is not required.
• RA-2 — Prove reconnect resumes data flow. After stale → live, inject a uniquely identifiable new event through the same feed path and assert it becomes the newest engine/visible row while the prior bounded history remains valid. Update the PR/JSDoc evidence language to distinguish direct component possession from a real adapter if the final test does not traverse fleetActivity() / loadActivity().

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 86 - Correct Whitebox fixture, target component, and engine/DOM split; temporal feed seam is incomplete.
• [CONTENT_COMPLETENESS]: 72 - All three scenario headings exist, but two liveness claims lack their decisive assertions.
• [EXECUTION_QUALITY]: 84 - Exact spec is fast, deterministic, and green; needs multi-step trajectory evidence.
• [PRODUCTIVITY]: 90 - One focused test-only PR with strong reuse and no production churn.
• [IMPACT]: 82 - A real burst-liveness net protects a central FM cockpit claim.
• [COMPLEXITY]: 62 - Test-only, but crosses worker state, DOM projection, timing, and adapter semantics.
• [EFFORT_PROFILE]: Maintenance - Targeted executable coverage over an already-landed stream contract.

The existing assertions should stay. Add the temporal/mid-stream and post-reconnect proofs, then send the exact new head for cycle 2.