/a11y-audit

name: "a11y-audit"
description: "Accessibility audit skill for scanning, fixing, and verifying WCAG 2.2 Level A and AA compliance across React, Next.js, Vue, Angular, Svelte, and plain HTML codebases. Use when auditing accessibility, fixing a11y violations, checking color contrast, generating compliance reports, or integrating accessibility checks into CI/CD pipelines."

Accessibility Audit

WCAG 2.2 Accessibility Audit and Remediation Skill

Description

The a11y-audit skill provides a complete accessibility audit pipeline for modern web applications. It implements a three-phase workflow -- Scan, Fix, Verify -- that identifies WCAG 2.2 Level A and AA violations, generates exact fix code per framework, and produces stakeholder-ready compliance reports.

For every violation it finds, it provides the precise before/after code fix tailored to your framework (React, Next.js, Vue, Angular, Svelte, or plain HTML).

**What this skill does:**

1. **Scans** your codebase for every WCAG 2.2 Level A and AA violation, categorized by severity (Critical, Major, Minor) 2. **Fixes** each violation with framework-specific before/after code patterns 3. **Verifies** that fixes resolve the original violations and introduces no regressions 4. **Reports** findings in a structured format suitable for developers, PMs, and compliance stakeholders 5. **Integrates** into CI/CD pipelines to prevent accessibility regressions

Features

| Feature | Description | |---------|-------------| | **Full WCAG 2.2 Scan** | Checks all Level A and AA success criteria across your codebase | | **Framework Detection** | Auto-detects React, Next.js, Vue, Angular, Svelte, or plain HTML | | **Severity Classification** | Categorizes each violation as Critical, Major, or Minor | | **Fix Code Generation** | Produces before/after code diffs for every issue | | **Color Contrast Checker** | Validates foreground/background pairs against AA and AAA ratios | | **Compliance Reporting** | Generates stakeholder reports with pass/fail summaries | | **CI/CD Integration** | GitHub Actions, GitLab CI, Azure DevOps pipeline configs | | **Keyboard Navigation Audit** | Detects missing focus management and tab order issues | | **ARIA Validation** | Checks for incorrect, redundant, or missing ARIA attributes |

Severity Definitions

| Severity | Definition | Example | SLA | |----------|-----------|---------|-----| | **Critical** | Blocks access for entire user groups | Missing alt text, no keyboard access to navigation | Fix before release | | **Major** | Significant barrier that degrades experience | Insufficient color contrast, missing form labels | Fix within current sprint | | **Minor** | Usability issue that causes friction | Redundant ARIA roles, suboptimal heading hierarchy | Fix within next 2 sprints |

Usage

Quick Start

# Scan entire project
python scripts/a11y_scanner.py /path/to/project

# Scan with JSON output for tooling
python scripts/a11y_scanner.py /path/to/project --json

# Check color contrast for specific values
python scripts/contrast_checker.py --fg "#777777" --bg "#ffffff"

# Check contrast across a CSS/Tailwind file
python scripts/contrast_checker.py --file /path/to/styles.css

Slash Command

/a11y-audit                    # Audit current project
/a11y-audit --scope src/       # Audit specific directory
/a11y-audit --fix              # Audit and auto-apply fixes
/a11y-audit --report           # Generate stakeholder report
/a11y-audit --ci               # Output CI-compatible results

Three-Phase Workflow

**Phase 1: Scan** -- Walk the source tree, detect framework, apply rule set.

python scripts/a11y_scanner.py /path/to/project --format table

**Phase 2: Fix** -- Apply framework-specific fixes for each violation.

> See [references/framework-a11y-patterns.md](references/framework-a11y-patterns.md) for the complete fix patterns catalog.

**Phase 3: Verify** -- Re-run the scanner to confirm fixes and check for regressions.

python scripts/a11y_scanner.py /path/to/project --baseline audit-baseline.json

Example: React Component Audit

// BEFORE: src/components/ProductCard.tsx
function ProductCard({ product }) {
  return (
    <div onClick={() => navigate(`/product/${product.id}`)}>
      <img src={product.image} />
      <div style={{ color: '#aaa', fontSize: '12px' }}>{product.name}</div>
      <span style={{ color: '#999' }}>${product.price}</span>
    </div>
  );
}

| # | WCAG | Severity | Issue | |---|------|----------|-------| | 1 | 1.1.1 | Critical | `<img>` missing `alt` attribute | | 2 | 2.1.1 | Critical | `<div onClick>` not keyboard accessible | | 3 | 1.4.3 | Major | Color `#aaa` on white fails contrast (2.32:1, needs 4.5:1) | | 4 | 1.4.3 | Major | Color `#999` on white fails contrast (2.85:1, needs 4.5:1) | | 5 | 4.1.2 | Major | Interactive element missing role and accessible name |

// AFTER: src/components/ProductCard.tsx
function ProductCard({ product }) {
  return (
    <a href={`/product/${product.id}`} className="product-card"
       aria-label={`View ${product.name} - $${product.price}`}>
      <img src={product.image} alt={product.imageAlt || product.name} />
      <div style={{ color: '#595959', fontSize: '12px' }}>{product.name}</div>
      <span style={{ color: '#767676' }}>${product.price}</span>
    </a>
  );
}

> See [references/examples-by-framework.md](references/examples-by-framework.md) for Vue, Angular, Next.js, and Svelte examples.

Tools Reference

a11y_scanner.py

Usage: python scripts/a11y_scanner.py <path> [options]

Options:
  --json                  Output results as JSON
  --format {table,csv}    Output format (default: table)
  --severity {critical,major,minor}  Filter by minimum severity
  --framework {react,vue,angular,svelte,html,auto}  Force framework (default: auto)
  --baseline FILE         Compare against previous scan results
  --report                Generate stakeholder