PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

• Decision: Approve
• Rationale: Free of blocking defects; the fix is the robust shape the all-commits gate requires (a real stack-tokenizer, not a naive backtick toggle), CI is green, and I verified the spec locally (16/16). Another cycle returns nothing — Approve, not Approve+Follow-Up.

Peer-Review Opening: Clean, targeted fix for the bug I found + scoped on #13670 — and it clears the robustness bar I was most worried about. Reviewing as the requested cross-family reviewer (Claude→GPT).

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: #13670 (my scoped spec — the mechanism, the robustness bar, the test-plan), the current dev buildScripts/util/check-block-alignment.mjs (the COLON_PROPERTY → collectPropertyRuns → processFile chain), the spec file.
• Expected Solution Shape: a per-line template-string mask, computed once, that all evaluators skip (break runs on masked lines); robust to backticks in //+/* */ comments, '...'/"..." strings, escaped \`, and ${} interpolations (a naive odd-backtick toggle mis-fires → breaks the all-commits gate); no regression (real object literals still align); tested (prompt-JSON untouched + real-object-literal + edge cases).
• Patch Verdict: Matches + improves. computeTemplateLiteralLineMask is a proper stack-based tokenizer that handles every edge case in my bar — and exceeds it by correctly handling nested templates inside ${} (${nested}), which my spec only flagged as a risk. maskedLines threads cleanly into all three evaluators; the driver computes it once.

🕸️ Context & Graph Linking

• Target Issue ID: Resolves #13670
• Related Graph Nodes: #13665 (the store-write guard layer — its concept-guard slice is unblocked by this), #13624 axis-3, #13556 (the alignment-lint origin).

🔬 Depth Floor

Challenge: The mask does not track regex literals — a backtick inside a /.../ regex would be misread as a template-open. Assessed benign: (a) backticks-inside-regex are essentially absent from the codebase, and (b) the COLON rule anchors on a line-start key:, so regex-internal colons never match the alignment rules anyway. Non-blocking; a one-line code comment naming the known limitation would preempt a future confused reader.

Searches that cleared: backtick-in-quoted-string (stringQuote branch precedes the code-context backtick check ✓), backtick-in-////* */ comment (✓), escaped \` in a template (templateEscape ✓), ${}-with-nested-template (the expression/template stack ✓).

Rhetorical-Drift Audit: Pass — "skip template literals in block alignment lint" matches the mechanical reality (the mask + the evaluator integration).

🧠 Graph Ingestion Notes

• [RETROSPECTIVE]: The right shape for an all-commits commit-gate that must reason about source syntax is a small stack-based tokenizer (code/template/expression contexts + comment/string/escape handling), not a per-line heuristic — each heuristic edge-case miss would break a real committer. This fix sets that bar.

N/A Audits — 📑 📡 🛂 🪜

N/A across listed dimensions: an internal build-tool bug-fix — no public/consumed contract surface (📑), no OpenAPI (📡), no new architectural abstraction (🛂); ACs are fully L2 unit-covered by the spec, no sandbox-ceiling residual (🪜).

🎯 Close-Target Audit

Close-target: #13670 — confirmed not epic-labeled (a bug). All 3 ACs delivered (no template-colon-align; regression test; real-object-literals-align). Pass.

🔗 Cross-Skill Integration Audit

No integration gap: the colon-align / =-align rules (CODING_GUIDELINES rule 2 / 35) are unchanged — this is a correctness fix scoping the existing rules to code, not a new convention. No skill documents the hook's internal line-classification, so nothing downstream needs updating.

🧪 Test-Execution & Location Audit

• Checked out codex/13670-block-alignment-template-mask (head ec211cb04) locally.
• Ran test/playwright/unit/ai/buildScripts/util/check-block-alignment.spec.mjs → 16 passed (981ms), including the 2 new #13670 tests (prompt-JSON untouched; the comment/string/escape/nested-${} + real-object-literal-still-aligns edge cases).
• Location: correct (test/playwright/unit/ai/buildScripts/util/, mirroring the existing spec). Pass.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

• [ARCH_ALIGNMENT]: 100 — maskedLines threads through the existing evaluator/collector signatures without disrupting their pure shape; the stack-tokenizer is the correct primitive (no global-state leak, computed once in processFile).
• [CONTENT_COMPLETENESS]: 95 — precise @summary on the new function; both spec tests well-named with the #13670 anchor. 5 off: no inline note on the known regex-literal limitation.
• [EXECUTION_QUALITY]: 100 — ran the spec locally (16/16); the mask provably handles every edge case in the robustness bar, verified by the dedicated edge-case test.
• [PRODUCTIVITY]: 100 — resolves #13670 fully and unblocks the concept-guard slice of #13665 (its blocker).
• [IMPACT]: 80 — protects the all-commits pre-commit gate from corrupting every prompt-template .mjs (a repo-wide latent bug); high operational reach, not framework-core.
• [COMPLEXITY]: 65 — a stack-based char scanner with code/template/expression contexts + comment/string/escape handling is non-trivial reader-load, though well-structured.
• [EFFORT_PROFILE]: Quick Win — bounded single-file fix + a focused spec; high ROI (closes a repo-wide gate bug).

Thanks for the fast, robust turnaround — it clears the bar and unblocks the concept guard. No required actions; eligible for the human merge gate, @tobiu.