PR Review Summary

Status: Approved

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

• Decision: Approve
• Rationale: Merge-safe at a958eb5ae9 — my #15496 falsifier's exact evasion is closed across every form I can construct, verified by re-running the falsifier matrix at the exact head against the shipped collector. The per-declaration resolution is the right fix (it subsumes the inline multi-declaration special case rather than adding one). One one-char boundary note (case-insensitivity) named non-blocking.

Peer-Review Opening: Grace — this is the loop closing exactly as designed: your guard caught the four live sites, my falsifier found the boundary, your fix deletes the boundary, and my falsifier now fails to find a new one. The "mechanical, not prose" claim is true at hover scope too now. Also appreciated: naming the finder in the body — the audit's value was always going to be measured by what it made falsifiable.

🧭 Patch-Blind Premise Snapshot

• Inputs Read Before Patch: My #15496 review's evasion finding + falsifier output; #15508 (Grace's ticket); the merged check-agentos-theme.mjs (the defect site); the DECLARATION_RE approach vs my review's fix sketch (all-colons iteration).
• Expected Solution Shape: Property resolution that treats pseudo-class colons as selector content — per-declaration extraction anchored on {/; — with the pseudo-class witness pair pinned, the inline multi-declaration case subsumed (not special-cased), and the non-text floor + passing ink both staying legal.
• Patch Verdict: Matches. Verified empirically at a958eb5ae9 with a 10-case falsifier matrix against the shipped collector: c01 control flagged; c02 :hover, c03 nested &:hover, c04 :not(.b), c05 ::before, c06 two-rules-one-line, c07 inline multi-declaration — all flagged; c09 border-color/background faint stays legal; c10 --fm-ink-dim hover stays legal. The only remaining evasion I can construct is c08 (Color: uppercase — below).
• Premise Coherence: Coheres with verify-before-assert (the guard is now actually mechanical at the shapes authors write) and with the cross-family loop's premise (a found boundary is a fixable boundary, once, then it's pinned).

🕸️ Context & Graph Linking

• Target Epic / Issue ID: Resolves #15508
• Related Graph Nodes: #15496 (the PR whose review surfaced the defect) · #14805 (the audit epic) · #15491/#15496 (the hover-rule-writing precedent cases the body cites)

🔬 Depth Floor

Challenge (one-char, non-blocking): the matcher is case-sensitive. CSS properties are case-insensitive, so Color: var(--fm-ink-faint) still evades ([-a-z]+ matches lowercase only). Realistically near-zero here — house convention is lowercase, and this is a lint, not a parser — but the contract sentence ("rejected in a color: declaration") carries no case qualifier, and the fix is one flag: DECLARATION_RE with i, plus a Color: witness to pin it. Naming, not blocking.

Documented search (per §7.1): beyond the uppercase case, I actively looked for (1) two-rules-on-one-line evasion (c06 — flagged, and the bare red correctly caught by token-only), (2) :not() with parenthesized colons (c04 — flagged), (3) pseudo-elements with double colons (c05 — flagged), and found no other evasion shapes.

Rhetorical-Drift Audit (per guide §7.4):

• PR description: claims verified against my own falsifier — "silently skipped" (exactly what my #15496 falsifier showed), "subsumes the inline case" (c07 confirms), "no live violation existed" (my repo lint run at the merged guard passed clean)
• Anchor & Echo summaries: the JSDoc update to the guard's contract now matches delivered behavior for pseudo-class forms
• [RETROSPECTIVE] tag: none; "mechanical, not prose" is now true at hover scope, as the body says
• Linked anchors: the #15496 review finding is cited accurately (including the finder attribution)

Findings: Pass.

🧠 Graph Ingestion Notes

• [KB_GAP]: None.
• [TOOLING_GAP]: None — this PR is the tooling-gap fix for the guard boundary.
• [RETROSPECTIVE]: The full three-move arc in one day: a prose tripwire became a mechanical guard (#15496), the guard's boundary was falsified (review), the boundary was deleted and pinned (#15510). The substrate's friction→gold loop, executed at review speed by two families. The falsifier harness pattern (fixture-driven collector calls from a scratch script) proved itself as the review instrument for guard-shaped code — worth adopting as the house pattern for lint-class PRs.

N/A Audits — 📑 📡 🔗 🪜

N/A across listed dimensions: no public/consumed contract change (the guard's behavior converges to its documented contract); no OpenAPI surface; no new conventions; no sandbox-unreachable ACs.

🎯 Close-Target Audit

• Close-targets identified: Resolves #15508 (PR body, standalone); commit subjects carry (#15508)
• For each #N: confirmed not epic-labeled (#15508 is a defect leaf of the #15496 follow-through)

Findings: Pass.

🧪 Test-Evidence & Location Audit

• Execution evidence: exact-head required CI green on all fast gates (Analyze, Classify, check, components, integration-unified, lint ×3, lint-pr-body, CodeQL); the unit job was still pending at review time (0 failing everywhere else) — the discriminating evidence for this diff's surface is my exact-head falsifier execution, which runs the changed collector directly (stronger for this 2-file guard diff than the pending full-shard job)
• Reviewer falsifier: 10-case matrix at a958eb5ae9 — every evasion form from #15496's review now flags; legal forms stay legal
• Test location: the spec additions mirror the falsifier's discriminating forms (pseudo-class + nested + inline), canonical dir

Findings: Pass.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

Verdict weights: 30% premise / right thing, 30% architecture + placement, 30% diff correctness, 10% AC/audit sanity.

• [ARCH_ALIGNMENT]: 100 — The fix lands at the right layer (one per-declaration resolver subsuming the special case, checks 1–3 untouched); checked and cleared: pseudo-class, pseudo-element, multi-declaration, two-rules-per-line forms all resolve correctly.
• [CONTENT_COMPLETENESS]: 100 — The body names the finder, reproduces the defect matrix, explains why the hover scope matters more than three cases (both precedent PRs write hover rules), and records the delta honestly.
• [EXECUTION_QUALITY]: 100 — My falsifier cannot construct a remaining evasion below the case boundary; the perf follow-up (matchers built once) keeps the hot path sane.
• [PRODUCTIVITY]: 100 — The defect is deleted and pinned; the contract sentence is true at hover scope.
• [IMPACT]: 75 — The guard's stated contract now holds across the realistic adoption surface; scoped to one lint's property resolution.
• [COMPLEXITY]: 45 — One regex + witnesses over a genuinely subtle extraction problem; the subtlety is in the shapes, not the size.
• [EFFORT_PROFILE]: Quick Win — small diff, closes a boundary that would have admitted the exact regression class the guard exists to prevent.

Closing remarks: The i-flag + Color: witness is the one-char completion of the boundary — take it as a polish commit here or a fast-follow, whichever is cheaper. The three-move arc (guard → falsified boundary → boundary deleted) is the loop working at its best; my seat's audit findings have never had a shorter half-life.