WCAG 2.2 Knowledge Base

Complete, automated WCAG 2.2 knowledge base with daily updates from the official W3C repository.

🎯 Overview

This repository contains a comprehensive WCAG 2.2 knowledge base optimized for:

• MCP Server Integration - Real-time accessibility guidance
• Corporate Use - Self-hosted, offline-capable
• AI/LLM Access - Markdown format, small files
• Automated Updates - Daily sync with W3C

✅ Status

• Content: 98.9% complete (554 files)
• Validation: APPROVED for corporate use
• MCP Ready: 100%
• Auto-Updates: Configured

📊 Contents

• 4 Principles - Core WCAG principles
• 13 Guidelines - Accessibility guidelines
• 87 Success Criteria - Testable requirements
• 440 Techniques - Implementation methods
• 10 Working Examples - Practical demonstrations

🚀 Quick Start

Installation

# Clone repository
git clone https://github.com/your-org/wcag-knowledge-base.git
cd wcag-knowledge-base

# Install dependencies
npm install

# Setup (clone W3C WCAG repository)
npm run setup

# Build knowledge base
npm run build

Usage

# Check for updates
npm run check-updates

# Update knowledge base
npm run update

# Validate
npm run validate

📁 Structure

wcag-knowledge-base/
├── data/
│   ├── wcag/                    # Generated knowledge base (554 files)
│   │   ├── index.md            # Main entry point
│   │   ├── principles/         # 4 principle files
│   │   ├── guidelines/         # 13 guideline files
│   │   ├── success-criteria/   # 87 SC files
│   │   ├── techniques/         # 440 technique files
│   │   └── examples/           # 10 example files
│   ├── wcag-version.json       # Version tracking
│   └── wcag-base.json          # Base structure
├── scripts/
│   ├── build-markdown-kb.js    # Local build (fast)
│   ├── build-complete-kb-from-web.js  # Web build (complete)
│   ├── check-for-updates.js    # Update checker
│   ├── update-wcag-kb.js       # Auto-updater
│   ├── validate-kb-simple.js   # Validator
│   └── wcag/                   # W3C WCAG repository (cloned)
├── docs/
│   ├── WCAG-KNOWLEDGE-BASE-BUILD-GUIDE.md
│   └── wcag-mcp-implementation-guide.md
└── .github/workflows/
    └── update-wcag-kb.yml      # Daily auto-update

🔄 Auto-Updates

The knowledge base automatically updates daily at 2 AM UTC via GitHub Actions:

1. Checks W3C WCAG repository for changes
2. Pulls latest updates if available
3. Rebuilds knowledge base
4. Commits and pushes changes

Manual update:

npm run update

🔌 MCP Integration

The knowledge base is optimized for MCP server integration:

• Format: Markdown (LLM-friendly)
• File Size: Average 6KB (fits in context windows)
• Structure: Wiki-style with cross-references
• Navigation: Index-based hierarchy
• Updates: Automated from trusted source

See docs/wcag-mcp-implementation-guide.md for integration details.

📖 Documentation

• Build Guide - Complete build instructions
• Auto-Update Guide - Update system documentation
• MCP Implementation - MCP integration guide
• Corporate Readiness - Validation report

🏢 Corporate Use

Approved: ✅ 100% corporate readiness score

• Source: Official W3C WCAG repository
• Accuracy: 98.9% content completeness
• Updates: Automated daily
• Offline: Works without internet
• Auditable: Complete version tracking

🛠️ Commands

Build Commands

npm run build              # Local build (fast, 99%)
npm run build:web          # Web build (complete, 100%)
npm run build:mapping      # Generate SC mapping

Update Commands

npm run check-updates      # Check for W3C updates
npm run update             # Update (local build)
npm run update:web         # Update (web build)
npm run update:force       # Force rebuild

Validation Commands

npm run validate           # Quick validation
npm run validate:corporate # Full corporate validation

📊 Validation Results

• File Structure: ✅ 100%
• Content Quality: ✅ 98.9%
• MCP Readiness: ✅ 100%
• Corporate Requirements: ✅ 100%

See Corporate Readiness Report for details.

🔐 Security

• Source: Official W3C repository (trusted)
• Updates: Automated via GitHub Actions (secure)
• Version Tracking: Every change recorded
• Auditable: Complete commit history

📝 License

The WCAG content is from W3C and follows their licensing terms. The parser scripts and tooling are MIT licensed.

🤝 Contributing

This is an automated knowledge base. Content comes directly from W3C.

For issues with:

• Content: Report to W3C WCAG repository
• Parser/Tools: Open issue in this repository

📞 Support

• Documentation: See docs/ directory
• Issues: GitHub Issues
• Updates: Check data/wcag-version.json

🔗 Links

• W3C WCAG 2.2
• W3C WCAG Repository
• Understanding WCAG

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Last Updated: 2026-02-10
WCAG Version: 2.2
Status: Production Ready ✅