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detector: hero pulsing-dot promotion, nav-CTA contrast gap closure, shape-assembled-illustration (56 -> 57)

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Item 1 (hero liveness theater):
- pulsing-dot now merges declarations per selector across rule blocks
  (cascade-approximate), descends into media queries, and strips
  prefers-reduced-motion: reduce overrides before the predicate runs.
  Catches the shipped split-block constructions (size in the base rule,
  animation added later or inside a no-preference media block).
- Dots whose element sits inside a header/nav landmark are promoted to
  error severity (string-level landmark ranges in both engines); the
  browser engine additionally promotes dots resting in the first ~900px.
- blinking-cursor findings in the first ~900px or inside header/nav are
  promoted from advisory to warning.
- Per-finding severity overrides now flow through static-html,
  browser-injected serialization, and detect-url.

Item 2 (nav-CTA contrast constructions):
- The a24-opus 01/002 header CTA already fires (specificity cascade +
  oklch + var() all resolved); systematic sweep found two remaining
  escapes and closes both:
  - own gradient background on a SAFE_TAGS element (checkColors styled-
    control exception now treats an own gradient as an own surface,
    contrast measured against the worst stop)
  - ::before/::after full-cover surface (static cascade marks pseudo
    surfaces; browser adapter reads the pseudo computed style) so text is
    measured against the surface the browser actually paints
- nav-cta-constructions fixture locks all eight computable construction
  families; background-image: url() remains unflaggable by design.

Item 3 (shape-assembled-illustration, slop/advisory):
- New rule for large inline SVGs composing a pictorial scene from >= 8
  primitive shapes at >= 200x200 intrinsic size with >= 3 distinct fills.
  Charts (axis labels), stroke-only technical drawings, icons/logos
  (small explicit size), and pattern-tiled backgrounds are exempt.
  1.8 percent fire rate over the 3069-sample eval corpus, all verified
  pictorial scenes; zero fires across val-a22/val-a24.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Paul Bakaus
2026-07-14 19:29:29 -07:00
co-authored by Claude Fable 5
parent 1734f13a2e
commit dc0b25d393
14 changed files with 928 additions and 36 deletions
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cli/engine/engines/static-html/detect-html.mjs
+6 -1
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@@ -222,7 +222,12 @@ async function detectHtml(filePath, options = {}) {
for (const f of runPageCheck('html-patterns', () => checkHtmlPatterns(html).filter(item =>
item.id !== 'bounce-easing' && item.id !== 'layout-transition'
))) {
findings.push(finding(f.id, filePath, f.snippet));
const item = finding(f.id, filePath, f.snippet);
// Position-aware severity promotion: checks may attach a per-finding
// severity (e.g. a pulsing dot inside a header/nav landmark) that
// overrides the registry default.
if (f.severity) item.severity = f.severity;
findings.push(item);
}
// Text-content analyzers (em-dash overuse, marketing buzzwords,
// numbered section markers, aphoristic cadence) live in the regex