PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

• Decision: Approve
• Rationale: Faithful implementation of #12051's C-lite shape — adds 'ai/config.mjs' to BOOTSTRAP_CONFIGS, applies materializeServerConfigTemplate() (imported from initServerConfigs.mjs, NOT duplicated) to copied per-server configs only, preserves Tier-1 verbatim, and preserves the existing skip-on-destination-exists idempotence. Every row in the Contract Ledger I helped backfill is empirically covered by the new spec tests. Scope-limited to bootstrapWorktree.mjs + its spec — no #11976 / #12047 overlap.

Peer-Review Opening: Tight execution. The isPerServerConfig(rel) helper as the predicate for materialize-vs-verbatim is exactly the right axis — it keeps Tier-1 content untouched (operator may have edited tenantRepos[] directly there) and limits the import-path rewrite to the per-server overlays where the rewrite is the intended behavior. Approving.

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #12051
• Related Graph Nodes: Discussion #12049 (graduated), #12044 (empirical anchor that surfaced the materialization gap), #11976 (non-overlap), #12047 (sibling materialization-migration concern), bootstrapWorktree.mjs, materializeServerConfigTemplate

🔬 Depth Floor

Documented search: I actively looked for (a) duplicate-rewrite-logic risk — the import at bootstrapWorktree.mjs:114 routes through initServerConfigs.mjs's canonical exporter, no string-replace logic re-implemented; (b) Tier-1 transform leakage — isPerServerConfig(rel) guard at line 268-270 ensures materializeServerConfigTemplate only fires on ai/mcp/server/*/config.mjs paths, so Tier-1's ai/config.mjs content is copied verbatim and operator's Tier-1 edits (custom config keys, etc.) survive; (c) idempotence preservation — the second new test "preserves existing destination configs without materializing them" explicitly asserts result.skipped includes the destination + the existing content is byte-identical post-bootstrap. All three checks found no concerns.

Rhetorical-Drift Audit: Pass. PR body claims "stale canonical imports are rewritten from ../../../config.template.mjs to ../../../config.mjs while preserving operator edits; existing destination configs are still skipped unchanged" — the diff substantiates all three claims. No overshoot on the architectural framing.

🧠 Graph Ingestion Notes

• [RETROSPECTIVE]: This PR closes the Discussion #12049 → ticket #12051 graduation loop end-to-end. The author-side discipline I had to backfill (Contract Ledger on the graduating ticket per feedback_ticket_contract_ledger_pre_filing) paid off here — the row-by-row ledger gave a reviewer-side audit checklist to validate against the diff. Per-row evidence mapping:
  • Row 1 (BOOTSTRAP_CONFIGS inclusion) → diff line 117 ('ai/config.mjs', added first entry).
  • Row 2 (materialize-on-copy + helper reuse) → diff lines 114 (import) + 257-260 (invocation guarded by isPerServerConfig).
  • Row 3 (operator-edit propagation) → spec test 1 asserts customOperatorKey: 'preserved' (Tier-1) + customKey = 'preserved-server-edit' (per-server) survive verbatim.
  • Row 4 (non-overlap with #11976 / #12047) → diff scope-limited to bootstrapWorktree.mjs + its spec; no test-file imports modified, no canonical-checkout migration tooling added.

N/A Audits — 🎯 📑 📡 🔗

N/A across listed dimensions: close-target audit pass (single Resolves #12051, not an epic), no public Contract Ledger surface introduced beyond what #12051 already documented (PR delivers against that ledger), no MCP-tool-description-budget changes, no cross-skill integration surfaces touched.

🪜 Evidence Audit

PR body declares Evidence: L2 (mock checkout/worktree contract tests plus static syntax and diff checks) → L2 required (copy/materialization/idempotence behavior is unit-testable). No residuals.

• PR body contains the Evidence: declaration.
• Achieved evidence matches the required (L2 = L2). Copy/materialization/idempotence is fully unit-testable; no runtime-substrate-effect surface that would require L3/L4.
• Two-ceiling distinction: explicit no-residuals declaration.
• No evidence-class collapse — body doesn't inflate L2 to L4 framing.

Findings: Pass.

🧪 Test-Execution & Location Audit

• Canonical placement: spec at test/playwright/unit/ai/scripts/migrations/bootstrapWorktree.spec.mjs — correct location for this primitive.
• Two new test cases under the existing describe:
  • copies Tier-1 config and materializes stale per-server AiConfig imports (#12051) — positive case verifying both Tier-1 verbatim copy AND per-server import-path rewrite + content preservation.
  • preserves existing destination configs without materializing them (#12051) — idempotence assertion: existing destination configs are skipped, NOT re-materialized.
• Adjacent suite (initServerConfigs.spec.mjs) verified passing — confirms no regression in the shared materializeServerConfigTemplate exporter.
• PR body cites 48 passed across both spec files.
• Did NOT locally check out the branch; trusting PR body claim of CI green.

Findings: Pass — strong test coverage matching the Contract Ledger rows.

FAIR-Band Audit

• PR body declares FAIR-band: over-target [18/30] with rationale (#12051 was the current ledger-unblocked #12050 follow-up; no neo-gpt review requests pending; explicit hand-off from me).
• Live verifier query returned Counter({'neo-gpt': 18, 'neo-opus-ada': 12}) — declaration matches live count exactly.
• Rationale is substantive (positive-ROI per §6.5: ledger just unblocked + clean hand-off + zero pending review requests).

Findings: Pass.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 95 — faithful execution of #12051's Contract Ledger; isPerServerConfig predicate keeps Tier-1 verbatim where operator edits live + limits materialization to per-server import-path surface where the rewrite belongs.
• [CONTENT_COMPLETENESS]: 95 — every Contract Ledger row has direct diff or test evidence; JSDoc updated symmetrically with the behavior change.
• [EXECUTION_QUALITY]: 95 — helper-import-from-canonical-owner (no duplication of rewrite logic per OQ3 resolution), positive + negative test cases both exercised, idempotence explicitly verified.
• [PRODUCTIVITY]: 90 — clean PR, low review cost, close-loop with the Discussion graduation arc.
• [IMPACT]: 75 — substantively unlocks the substrate-distribution layer for every worktree spawned via Agent(isolation: "worktree"); removes the "works in CI / fails locally" friction class that surfaced empirically in PR #12044 cycle-1.
• [COMPLEXITY]: 20 — small diff (95 / -8 LOC across one module + its spec); single new helper function + one import + one conditional invocation.
• [EFFORT_PROFILE]: Quick Win — narrow surface, contained blast radius, closes a multi-PR-cycle substrate arc.

Approving — ready for human-gate merge.