AI-Ready Knowledge Base
neura11y is a structured accessibility knowledge base built for AI context loading and RAG pipelines. 178 markdown files covering WCAG, WAI-ARIA, seven social platforms, document workflows, voice UI, kiosk guidance, legal compliance, component patterns, and more — all with YAML frontmatter for clean ingestion.
v0.3.0 expanded AI validation, screen-reader provenance, tooling references, and refresh automation updates
---
title: "Web Accessibility Checklist — WCAG Level AA"
standard: "WCAG"
source_url: "https://w3.org/TR/WCAG22/"
domain: ["web"]
last_fetched: "2026-03-13"
status: "prescriptive"
tags: ["wcag", "checklist", "audit", "aa", "web"]
ai_context: "Load for any WCAG
audit or remediation pass."
---
# Web Accessibility Checklist — WCAG Level AA
## Principle 1: Perceivable
### 1.1 Text AlternativesGive your AI tool the repo, start with the guide files, and then ask for the exact accessibility help you need.
Put it in the same workspace or project context your AI tool can access — a local folder, a Claude project, or a RAG pipeline.
Have the AI reference AI-USAGE-GUIDE.md and INDEX.md. These files explain what is in the repo and how to use it.
Tell the AI what you want help with, such as auditing a page, reviewing a document, writing a social post, or checking compliance.
Treat results as assisted draft work. Verify thresholds, SC numbers, and any platform-specific claims against official sources.
Load the relevant files for your task and let the model do the work — grounded in real standards, not general knowledge.
Generate accessible components, review HTML for WCAG issues, and get ARIA patterns for modals, tabs, carousels, comboboxes, and more.
Get step-by-step guidance for Word, PowerPoint, Excel, and PDF. Covers heading structure, alt text, reading order, PDF forms, charts, and plain language.
Generate alt text, captions, sign-language-aware video guidance, and accessible copy for Twitter/X, Instagram, LinkedIn, YouTube, TikTok, Facebook, and Mastodon.
Understand WCAG conformance levels, Section 508, EN 301 549, ISO 9241-171, and regional law — US ADA, EU EAA, UK regulations, Canada, and Australia.
Spec voice commands, spoken confirmations, label-in-name support, multimodal fallback, and recovery patterns for speech-driven interfaces.
Use the kiosk playbook for closed functionality, timed sessions, non-visual access, hardware controls, and self-service transaction flows.
The repo spans standards, applied guidance, prompt templates, and supporting reference material across major accessibility domains, including voice UI and physical ICT.
All 86 active WCAG success criteria with levels, sufficient techniques, advisory techniques, failure techniques, and understanding guides, plus notes on obsolete SC 4.1.1. WCAG 2.1 full text, 3.0 overview, and conformance levels are also included.
Roles, states, and properties reference plus AccName, split Core-AAM and HTML-AAM files, ARIA in HTML, APG patterns, and a curated common mistakes guide.
HTML semantics, focus management, forms, images, SPA patterns, mobile web, PWAs, color/contrast, keyboard navigation, 8 component patterns, and a testing suite covering automated tools, checker and CLI references, manual checklist, and a screen-reader testing matrix.
Platform guides for all 7 major platforms. Alt text principles and examples, caption standards, audio description, sign language video notes, subtitle terminology, and inclusive writing guides.
Word, PowerPoint, Excel, and PDF accessibility guides with focused files for PDF forms, remediation, export workflows, readability, and Excel data visualization.
Guidance for speech commands, label-in-name alignment, spoken confirmations, multimodal fallback, privacy, and recovery for voice-driven interfaces.
Kiosk and embedded system playbook covering closed functionality, non-visual access, timed sessions, hardware controls, transaction review patterns, and WCAG2ICT interpretation support for non-web software and documents.
Support guides and testing matrices for JAWS, NVDA, VoiceOver, and TalkBack. Covers HTML and ARIA support levels, cross-tool testing workflows, mobile SR checks, and fetched vendor provenance for command and workflow traceability.
EPUB Accessibility 1.1 with metadata schema, PDF/UA overview, and the Matterhorn Protocol checklist for verifying PDF conformance. Covers ATAG 2.0 and UAAG 2.0 overviews.
COGA overview and design patterns. SC 3.3.8 authentication, SC 3.3.7 redundant entry, error patterns. Dyslexia and ADHD guidance.
Complete WCAG contrast thresholds, common color pairs, tools. Typography accessibility. Color blindness types, design patterns, and testing.
US ADA and Section 508, EU European Accessibility Act, UK accessibility regulations, Canada accessibility coverage, Australia guidance, plus EN 301 549 alignment.
Run it from your repo root. The knowledge files do the heavy lifting.
You have access to the neura11y accessibility repository.
1. Read AI-USAGE-GUIDE.md and INDEX.md to understand the repository structure and guidelines. 2. Identify and load only the tight, focused bundle of files relevant to this exact task. 3. Use strictly those files as your source material. If they do not fully cover the request, state that clearly rather than filling gaps from general knowledge.
Help me create or review an accessible [HTML page / component / Markdown document / social post]. Pay special attention to WCAG compliance for elements like multimedia captions and semantic structure. Ensure the final code or content prioritizes an intuitive, aesthetic flow rather than relying on dry, rigid logic.
Clone or download at github.com/AYJAYY/neura11y/releases (opens in a new tab). Contributions, corrections, and new platform guides are welcome.
When W3C, vendor, or government sources update, use the fetch scripts from the repo root. Large sources regenerate split canonical files for AI use plus raw *-full-fetched.md or *-fetched.md provenance captures.
python3 scripts/fetch-all.pypython3 scripts/refresh-repo.pyThis refreshes tracked sources, syncs release metadata, rebuilds AI chunk artifacts, and reruns the structural plus fixture validation suite.
python3 scripts/fetch-aria.py for WAI-ARIA, AccName, Core-AAM, HTML-AAM, and ARIA in HTMLpython3 scripts/fetch-w3c-other.py for WCAG2ICT, WAI tutorials, ATAG, UAAG, EPUB, WebVTT, COGA, and the alt-text decision treepython3 scripts/fetch-screen-readers.py for NVDA, VoiceOver, TalkBack, and JAWS vendor support docspython3 scripts/fetch-wcag.py for WCAG full text, quick refs, techniques, and understanding docsSee meta/update-schedule.md for cadence and AI-USAGE-GUIDE.md for which split canonical files to load after each refresh.