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Accessibility Review

AnthropicOfficialPublished by Anthropic

  • Skill
  • Review and audit
  • Design and creative
  • Apache-2.0
  • No issues found

From the author

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.
— the description by Anthropic

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

The accessibility-review skill provides a structured framework for evaluating digital interfaces against WCAG 2.1 AA standards. It guides users through a systematic audit process covering perceivability, operability, understandability, and robustness. The skill generates a detailed report including findings categorized by severity, color contrast verification, keyboard navigation analysis, and screen reader compatibility, helping teams identify and prioritize accessibility improvements before handoff.

What it does

  • Evaluates designs or pages against WCAG 2.1 AA criteria.
  • Generates a structured audit report with severity ratings and recommendations.
  • Performs color contrast checks for text and UI components.
  • Analyzes keyboard navigation and focus order.
  • Identifies common accessibility issues like missing labels, alt text, or ARIA landmarks.
  • Integrates with design tools to inspect specs and project trackers to create remediation tickets.

When to use it

  • During the design handoff phase to ensure compliance before development.
  • When auditing existing web pages for accessibility gaps.
  • To verify color contrast ratios for text and UI elements.
  • When testing keyboard navigation and focus management in interactive components.

Advantages

  • Standardizes accessibility reporting across projects.
  • Provides clear, actionable recommendations for remediation.
  • Helps prioritize fixes based on user impact.
  • Reduces manual effort by automating common accessibility checks.

Usage examples

“audit accessibility for this design”
The agent performs an accessibility review of the provided design, checking for contrast, touch targets, and semantic structure, then outputs a detailed audit report.
“is this accessible?”
The agent analyzes the specified page or design, identifying potential WCAG 2.1 AA violations and suggesting specific fixes for identified issues.

Install

  1. Download the skill as a ZIP:

    https://mp-staging.autogineer.com/agent-skills/anthropics/accessibility-review/download
  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip accessibility-review.zip -d .agents/skills

Documentation by Anthropic

/accessibility-review

If you see unfamiliar placeholders or need to check which tools are connected, see 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

## 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.

Files

SKILL.md

/accessibility-review

If you see unfamiliar placeholders or need to check which tools are connected, see 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

## 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.

Requirements and compatibility

Written for: Claude Code, Claude apps

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Claude Code frontmatter

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Published by
Anthropic
Publisher
Anthropic (Official)
Source
anthropics/knowledge-work-plugins · design/skills/accessibility-review · commit e050c2e
Licence
Apache License 2.0 (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by Anthropic.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download accessibility-review.zip