wcag-audit-patterns
This Claude Code skill provides systematic guidance for auditing websites against WCAG 2.2 standards across four conformance levels (A, AA, AAA) and the POUR principles (Perceivable, Operable, Understandable, Robust). Use it when conducting accessibility audits, remediating WCAG violations, implementing accessible components, or meeting regulatory requirements like ADA and Section 508 compliance through automated testing paired with manual verification.
git clone --depth 1 https://github.com/wshobson/agents /tmp/wcag-audit-patterns && cp -r /tmp/wcag-audit-patterns/plugins/accessibility-compliance/skills/wcag-audit-patterns ~/.claude/skills/wcag-audit-patternsSKILL.md
# WCAG Audit Patterns Comprehensive guide to auditing web content against WCAG 2.2 guidelines with actionable remediation strategies. ## When to Use This Skill - Conducting accessibility audits - Fixing WCAG violations - Implementing accessible components - Preparing for accessibility lawsuits - Meeting ADA/Section 508 requirements - Achieving VPAT compliance ## Core Concepts ### 1. WCAG Conformance Levels | Level | Description | Required For | | ------- | ---------------------- | ----------------- | | **A** | Minimum accessibility | Legal baseline | | **AA** | Standard conformance | Most regulations | | **AAA** | Enhanced accessibility | Specialized needs | ### 2. POUR Principles ``` Perceivable: Can users perceive the content? Operable: Can users operate the interface? Understandable: Can users understand the content? Robust: Does it work with assistive tech? ``` ### 3. Common Violations by Impact ``` Critical (Blockers): ├── Missing alt text for functional images ├── No keyboard access to interactive elements ├── Missing form labels └── Auto-playing media without controls Serious: ├── Insufficient color contrast ├── Missing skip links ├── Inaccessible custom widgets └── Missing page titles Moderate: ├── Missing language attribute ├── Unclear link text ├── Missing landmarks └── Improper heading hierarchy ``` ## Detailed patterns and worked examples Detailed pattern documentation lives in `references/details.md`. Read that file when the navigation tier above is insufficient. ## Best Practices ### Do's - **Start early** - Accessibility from design phase - **Test with real users** - Disabled users provide best feedback - **Automate what you can** - 30-50% issues detectable - **Use semantic HTML** - Reduces ARIA needs - **Document patterns** - Build accessible component library ### Don'ts - **Don't rely only on automated testing** - Manual testing required - **Don't use ARIA as first solution** - Native HTML first - **Don't hide focus outlines** - Keyboard users need them - **Don't disable zoom** - Users need to resize - **Don't use color alone** - Multiple indicators needed
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