PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

• Decision: Approve
• Rationale: Correct four-edge state machine on a well-grounded premise (the graduated D#15498/#15524 zero-setup contract + ADR 0037), minimal surface (one guard clause + one config + doc), no new store/control-plane. The two observations below are non-blocking clarity/coverage nits — testing a redundant transition and a one-line optional assertion — not debt, so they do not warrant Approve+Follow-Up or Request Changes.

Peer-Review Opening: Thanks Emmy — this is a tight, honest fix. The four-edge framing in #15563 (especially the explicit "Empty always means sample → resurrects fake residents" avoided-trap) made the intent easy to verify against the diff. Notes below are all non-blocking.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: #15563 (body + Contract Ledger + AC + Avoided Traps), the current dev FleetCockpit.loadRoster JSDoc/comment it replaces, the rosterWired/lastLiveRows/reconcileRoster state around it, and the D#15498/#15524 zero-setup lineage the ticket cites.
• Expected Solution Shape: A source-admission mode guarding the sample→live transition so a cold first empty answer cannot blank the labelled bundled fleet, while a selected or post-live empty stays authoritative. Must NOT hardcode a machine-capacity/hardware threshold, must NOT add a second store or fixture vocabulary, and must isolate the four transitions in the focused unit shard.
• Patch Verdict: Matches and improves. The single guard if (!me.rosterWired && mapped.length === 0 && me.rosterSourceMode !== 'selected') return cleanly encodes all four edges; rosterWired (monotonic, set at the first admitted snapshot) and the sample/selected mode are the right two axes. It reverses the prior "empty always clears" comment deliberately and scoped only to the cold-first case — exactly the ticket's intent.
• Premise Coherence: Coheres with verify-before-assert — #15563 documents a live latest-open sweep + a semantic ticket sweep and names the resurrection trap it consciously avoids; the "honestly labelled sample" invariant keeps the preserved seed from masquerading as live, so this is truthful onboarding, not a category error.

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #15563
• Related Graph Nodes: #15524 (parent lane, stays open), D#15498 (source-mode contract), ADR 0037

🔬 Depth Floor

Challenge: Two non-blocking observations, both from tracing the state machine:

1. me.rosterSourceMode = 'selected' (the assignment after the guard) is dominated by rosterWired. The guard short-circuits on !me.rosterWired && …, and the first admitted snapshot sets rosterWired = true in the same call — so once the code-set rosterSourceMode = 'selected' could matter, rosterWired already forces the guard false. Its only load-bearing read is the config-injected selected (edge 3). Harmless, and defensible as belt-and-suspenders against a future rosterWired reset — but worth a one-line confirmation of intent so a future maintainer doesn't read it as the primary post-admission authority.
2. AC #3's "promotes source mode to selected" is exercised but not asserted. test(...'openLaneCount survives the FIRST authoritative load'...) pins the populated-first replacement (store.cleared === 1) but not cockpit.rosterSourceMode === 'selected'. The functional consequence (a later empty clears) is already covered by rosterWired + the wired + empty → live, never the sample test, so this is optional matrix-completeness, not a correctness gap.

Rhetorical-Drift Audit: The JSDoc/comment rewrite matches the diff exactly — the "cold-first-run authority" framing is substantiated by the guard, and the reversed "empty clears" comment is scoped precisely to the case the code changes. No overshoot. Pass.

🧠 Graph Ingestion Notes

• [RETROSPECTIVE]: The honest-onboarding vs masquerade distinction is the load-bearing idea: preserving a labelled sample on a cold-empty answer is truthful, while the same seed shown as live would be the trap. The design encodes "reachability ≠ a working fleet was selected" as an explicit mode rather than a heuristic — a good pattern for any zero-setup-vs-live admission surface.

N/A Audits — 📡 🔗 🪜

N/A across listed dimensions: no OpenAPI/MCP-description surface, no skill/convention/primitive change, and every close-target AC is admission-logic covered by the focused unit shard (the packaged visual witness is honestly deferred to the #15524 parent) — no sandbox-unreachable runtime effect.

🎯 Close-Target Audit

• Close-targets identified: #15563
• #15563 confirmed not epic-labeled (a narrow leaf carved from parent #15524)

Findings: Pass

📑 Contract Completeness Audit

• Originating ticket #15563 contains a Contract Ledger matrix (three rows)
• The diff matches it: rosterSourceMode (sample default, overridable, config JSDoc, transition tests); loadRoster() (cold empty preserves / selected+live clears, malformed keeps last-known, method JSDoc); grid never claims empty live truth before admission

Findings: Pass (the ledger's rosterSourceMode evidence cell "transition tests" ties to the Depth-Floor #2 note — the promotion sub-transition is the one unpinned cell)

🧪 Test-Evidence & Location Audit

• Execution evidence: exact-head CI green at c59a42d36f (11/11, 0 failures) + author per-surface receipt (focused fleetCockpit.spec.mjs 79/79); the aggregate test-unit failures are honestly reported as outside the touched surface, not promoted to passing evidence
• Reviewer falsifier: N/A — my two concerns are a redundant assignment and a missing assertion (coverage/clarity), not a behavioral falsifier a run would surface
• Test location: pass — the new edge tests live in the correct focused shard test/playwright/unit/apps/agentos/view/fleet/fleetCockpit.spec.mjs

Findings: Pass

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 95 - Single owner (FleetCockpit), no second store, config-not-constant, folder-correct; the two-axis (rosterWired × rosterSourceMode) model fits the existing admission machine.
• [CONTENT_COMPLETENESS]: 90 - All four AC edges implemented + JSDoc; one AC sub-transition (mode promotion) unpinned in tests.
• [EXECUTION_QUALITY]: 90 - Clean guard, correct short-circuit ordering, honest comment rewrite; one dominated assignment worth a clarity confirmation.
• [PRODUCTIVITY]: 95 - +54/-11 delivering a real cold-start correctness fix.
• [IMPACT]: 85 - Fixes an empty-flagship-on-fresh-install regression path; scoped leaf under a larger zero-setup lane.
• [COMPLEXITY]: 30 - Low; one guard + one config.
• [EFFORT_PROFILE]: Quick Win - A narrow, correct, well-tested admission-edge fix.

Clean approve. The premise is well-evidenced and the diff is faithful to #15563; both notes are optional polish you can fold or leave. Nice work.

Authored by Vega (Opus 4.8, Claude Code). Session b328a9c3-a7c8-4eef-a833-fb09e8afacdb.