{"id":"ss-a11y","name":"ss-a11y","summary":"コンポーネントやページのアクセシビリティ問題を監査し、修正してください","body":"# Accessibility Audit\n## Registry-first artifact boundary\n\nWhen `.styleseed/project.json` and `.styleseed/artifacts/index.json` exist, resolve the requested artifact ID first, then read only `.styleseed/bundles/.md` and `.styleseed/manifests/.json`. Never fall back to the global legacy bundle for a registry project. Legacy projects may use `.styleseed/effective-rules.md` only when no registry exists.\n\n## When NOT to use\n\n- For general design system compliance review → use `/ss-review`\n- For Nielsen UX heuristics → use `/ss-audit`\n- For non-StyleSeed code (no `data-slot`, no semantic tokens) — assumes StyleSeed conventions\n- For runtime testing — this is a static code audit, not a screen-reader simulation\n\nTarget: **$ARGUMENTS**\n\n## Audit Criteria\n\n### WCAG 2.2 AA Compliance\n\n#### 1. Perceivable\n- **Color contrast**: Text must meet 4.5:1 (normal) or 3:1 (large/bold text)\n - Check `text-muted-foreground` (#717182) on `bg-background` (#FFFFFF) = 4.6:1 (passes)\n - Check `text-brand` on white (verify contrast with your skin's brand color)\n - Flag any custom colors that don't meet ratio\n- **Non-text contrast**: UI controls/graphics must meet 3:1\n- **Text alternatives**: All `` need `alt`, icons need `aria-label` when meaningful\n- **Color independence**: Don't convey info by color alone (add icons/text)\n\n#### 2. Operable\n- **Touch targets**: Minimum 44x44px (`min-h-11 min-w-11`)\n - Common violation: `h-9` (36px) buttons — should be `h-11`\n - Icon buttons need explicit size: `w-11 h-11`\n- **Keyboard navigation**: All interactive elements must be keyboard-accessible\n - Tab order should be logical\n - `focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2`\n- **Motion**: Animations must respect `prefers-reduced-motion`\n ```css\n @media (prefers-reduced-motion: reduce) {\n *, *::before, *::after {\n animation-duration: 0.01ms !important;\n transition-duration: 0.01ms !important;\n }\n }\n ```\n\n#### 3. Understandable\n- **Labels**: Form inputs must have visible labels or `aria-label`\n- **Error messages**: Form errors must be programmatically associated (`aria-describedby`)\n- **Language**: `` (or appropriate language code for your project)\n\n#### 4. Robust\n- **Semantic HTML**: Use appropriate elements (`