skill

Accessibility Review

Run a WCAG 2.1 AA accessibility audit on a design or page. Trigger with "audit accessibility", "check a11y", "is this accessible?", or when reviewing a design for color contrast, keyboard navigation, touch target size, or screen reader behavior before handoff.

Anthropic4.80+ installsVetted

About

# /accessibility-review

> If you see unfamiliar placeholders or need to check which tools are connected, see [CONNECTORS.md](../../CONNECTORS.md).

Audit a design or page for WCAG 2.1 AA accessibility compliance.

## Usage

``` /accessibility-review $ARGUMENTS ```

Audit for accessibility: @$1

## WCAG 2.1 AA Quick Reference

### Perceivable - **1.1.1** Non-text content has alt text - **1.3.1** Info and structure conveyed semantically - **1.4.3** Contrast ratio >= 4.5:1 (normal text), >= 3:1 (large text) - **1.4.11** Non-text contrast >= 3:1 (UI components, graphics)

### Operable - **2.1.1** All functionality available via keyboard - **2.4.3** Logical focus order - **2.4.7** Visible focus indicator - **2.5.5** Touch target >= 44x44 CSS pixels

### Understandable - **3.2.1** Predictable on focus (no unexpected changes) - **3.3.1** Error identification (describe the error) - **3.3.2** Labels or instructions for inputs

### Robust - **4.1.2** Name, role, value for all UI components

## Common Issues

1. Insufficient color contrast 2. Missing form labels 3. No keyboard access to interactive elements 4. Missing alt text on meaningful images 5. Focus traps in modals 6. Missing ARIA landmarks 7. Auto-playing media without controls 8. Time limits without extension options

## Testing Approach

1. Automated scan (catches ~30% of issues) 2. Keyboard-only navigation 3. Screen reader testing (VoiceOver, NVDA) 4. Color contrast verification 5. Zoom to 200% — does layout break?

## Output

```markdown ## Accessibility Audit: [Design/Page Name] **Standard:** WCAG 2.1 AA | **Date:** [Date]

### Summary **Issues found:** [X] | **Critical:** [X] | **Major:** [X] | **Minor:** [X]

### Findings

#### Perceivable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [1.4.3 Contrast] | 🔴 Critical | [Fix] |

#### Operable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [2.1.1 Keyboard] | 🟡 Major | [Fix] |

#### Understandable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [3.3.2 Labels] | 🟢 Minor | [Fix] |

#### Robust | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [4.1.2 Name, Role, Value] | 🟡 Major | [Fix] |

### Color Contrast Check | Element | Foreground | Background | Ratio | Required | Pass? | |---------|-----------|------------|-------|----------|-------| | [Body text] | [color] | [color] | [X]:1 | 4.5:1 | ✅/❌ |

### Keyboard Navigation | Element | Tab Order | Enter/Space | Escape | Arrow Keys | |---------|-----------|-------------|--------|------------| | [Element] | [Order] | [Behavior] | [Behavior] | [Behavior] |

### Screen Reader | Element | Announced As | Issue | |---------|-------------|-------| | [Element] | [What SR says] | [Problem if any] |

### Priority Fixes 1. **[Critical fix]** — Affects [who] and blocks [what] 2. **[Major fix]** — Improves [what] for [who] 3. **[Minor fix]** — Nice to have ```

## If Connectors Available

If **~~design tool** is connected: - Inspect color values, font sizes, and touch targets directly from Figma - Check component ARIA roles and keyboard behavior in the design spec

If **~~project tracker** is connected: - Create tickets for each accessibility finding with severity and WCAG criterion - Link findings to existing accessibility remediation epics

## Tips

1. **Start with contrast and keyboard** — These catch the most common and impactful issues. 2. **Test with real assistive technology** — My audit is a great start, but manual testing with VoiceOver/NVDA catches things I can't. 3. **Prioritize by impact** — Fix issues that block users first, polish later.

Install

Run this command

git clone https://github.com/anthropics/knowledge-work-plugins && cp -r knowledge-work-plugins/design/skills/accessibility-review ~/.claude/skills/

Works with

claude appclaude codeclaude apicursorcodexwindsurfclinezed

Manual steps

Clone the repository and copy the `design/skills/accessibility-review` folder into your Claude skills directory. Compatible with Claude Code, Cursor, Codex, and any Agent Skills-compatible agent.

View source
License: Apache-2.0By Anthropic

Frequently asked questions

What is the Accessibility Review skill?

Run a WCAG 2.1 AA accessibility audit on a design or page. Trigger with "audit accessibility", "check a11y", "is this accessible?", or when reviewing a design for color contrast, keyboard navigation, touch target size, or screen reader behavior before handoff.

How do I install Accessibility Review?

Run this in your terminal:

git clone https://github.com/anthropics/knowledge-work-plugins && cp -r knowledge-work-plugins/design/skills/accessibility-review ~/.claude/skills/
Which AI tools does Accessibility Review work with?

It works with claude_app, claude_code, claude_api, cursor, codex, windsurf, cline, zed.

Who made Accessibility Review?

Anthropic, released under the Apache-2.0 license.

Is Accessibility Review free?

Yes, it is free to use under the Apache-2.0 license.

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