SKILL.md
Accessibility Audit
Registry-first artifact boundary
When .styleseed/project.json and .styleseed/artifacts/index.json exist, resolve the requested artifact ID first, then read only .styleseed/bundles/<artifact-id>.md and .styleseed/manifests/<artifact-id>.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.
When NOT to use
- For general design system compliance review → use
/ss-review - For Nielsen UX heuristics → use
/ss-audit - For non-StyleSeed code (no
data-slot, no semantic tokens) — assumes StyleSeed conventions - For runtime testing — this is a static code audit, not a screen-reader simulation
Target: $ARGUMENTS
Audit Criteria
WCAG 2.2 AA Compliance
1. Perceivable
- Color contrast: Text must meet 4.5:1 (normal) or 3:1 (large/bold text)
- Check text-muted-foreground (#717182) on bg-background (#FFFFFF) = 4.6:1 (passes) - Check text-brand on white (verify contrast with your skin's brand color) - Flag any custom colors that don't meet ratio
- Non-text contrast: UI controls/graphics must meet 3:1
- Text alternatives: All
<img>needalt, icons needaria-labelwhen meaningful - Color independence: Don't convey info by color alone (add icons/text)
2. Operable
- Touch targets: Minimum 44x44px (
min-h-11 min-w-11)
- Common violation: h-9 (36px) buttons — should be h-11 - Icon buttons need explicit size: w-11 h-11
- Keyboard navigation: All interactive elements must be keyboard-accessible
- Tab order should be logical - focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2
- Motion: Animations must respect
prefers-reduced-motion
``css @media (prefers-reduced-motion: reduce) { , ::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } } ``
3. Understandable
- Labels: Form inputs must have visible labels or
aria-label - Error messages: Form errors must be programmatically associated (
aria-describedby) - Language:
<html lang="en">(or appropriate language code for your project)
4. Robust
- Semantic HTML: Use appropriate elements (
<button>,<nav>,<main>,<header>) - ARIA: Use Radix UI components (they handle ARIA automatically)
- Roles: Custom interactive elements need proper
roleattributes
Design System Token Reference
| Token | Minimum Contrast | Note |
|---|---|---|
--foreground |
7:1+ | Body text — verify with your skin |
--muted-foreground |
4.5:1+ | Secondary text — verify with your skin |
--brand |
4.5:1+ | Accent — verify with your skin's brand color |
--destructive |
4.5:1+ | Error — verify with your skin |
--success |
3:1+ | Large text/icons only — verify with your skin |
--warning |
4.5:1+ | Warning text — some skins need a darker variant |
Output
- Issues found: List with severity (Critical/Major/Minor)
- Auto-fixes: Apply fixes directly where possible
- Manual review needed: Flag items that need human judgment