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wcag-checker

WCAG 2.1/2.2 accessibility verification checklist and automated audit methodology skill. Use for requests like 'verify accessibility', 'WCAG check', 'check contrast ratio', 'ARIA audit', 'keyboard accessibility', 'screen reader test', etc. Note: running actual assistive technology (JAWS/NVDA), legal consultation, and accessibility certification issuance are outside the scope of this skill.

en/36-design-system/.claude/skills/wcag-checker/skill.md

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Mar 22, 2026
License
Apache-2.0

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# WCAG Checker — Accessibility Verification Checklist + Tools

A domain knowledge skill that enhances the a11y-auditor agent's accessibility verification capabilities.

## Target Agents

- **a11y-auditor** — Uses this skill's checklist and formulas to verify per-component accessibility
- **component-developer** — Checks accessibility requirements proactively during development

## WCAG 2.1 AA Mandatory Criteria Checklist

### 1. Perceivable

| Criterion | Item | Verification Method | Severity |