What is a11y-audit-react?

An accessibility review tool checks React components against WCAG 2.2 Level AA, a standard for making websites usable by people with disabilities. It reports violations and suggests code changes.

Use it to audit one React file, a directory, or a whole project, then get severity ratings, fixes, and commands for checking the changes.

It helps identify barriers such as incorrect HTML semantics or missing accessibility information before users encounter them.

a11y-audit-react — Skill for Claude Code and Codex by vanessamarely

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add vanessamarely/ai-playbook-reposito --skill a11y-audit-react

Clone the repo

git clone --depth 1 https://github.com/vanessamarely/ai-playbook-reposito

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react/github.svg)](https://agentmods.dev/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react)

Your own site

<a href="https://agentmods.dev/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react"><img src="https://agentmods.dev/badge/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react"><img src="https://agentmods.dev/badge/skills/vanessamarely/ai-playbook-reposito/a11y-audit-react.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,958 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00048	$0.01958
Opus 5.5	$0.00019	$0.00783
Sonnet 5.5	$0.00010	$0.00392
Haiku 4.5	$0.00005	$0.00196

Measured 2mo ago against content hash e5d0f422eb0d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

a11y-audit-react scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

ai-playbook/.agents/skills/a11y-audit-react/SKILL.md · 257 lines

How it starts

The opening of the file, as written. The whole thing — 257 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Accessibility Audit (React)

Purpose

Identify accessibility violations in React components and provide actionable remediation steps aligned with WCAG 2.2 Level AA.

Inputs

targetPath: Path to component file(s) or directory to audit.
auditScope: single-file, directory, or full-project.

Outputs

Summary of violations with severity (critical, serious, moderate, minor).
Actionable code fixes with minimal diffs.
Verification commands to test changes.

Procedure

Step 1: Validate Scope

Verify targetPath exists.
Determine file(s) to audit based on auditScope.
Filter for .tsx and .jsx files.

Step 2: Run Automated Lint

Execute: .agents/skills/a11y-automation/scripts/run-a11y-lint.sh <targetPath>

Capture output.

If eslint-plugin-jsx-a11y is configured, parse violations.

Step 3: Load WCAG Guidelines

Read: .agents/skills/react-components/references/a11y-wcag22.md

Use as reference for manual inspection.

Step 4: Analyze Each Component

For each component file:

Semantic HTML Check
- Detect use of <div> or <span> for buttons/links.
- Flag missing landmarks (<header>, <nav>, <main>, <footer>).
Keyboard Navigation Check
- Verify interactive elements have onClick and onKeyDown handlers.
- Check for keyboard traps in modals or focus-managed sections.
ARIA Usage Check
- Identify missing aria-label or aria-labelledby on icon buttons.
- Detect invalid ARIA attribute combinations.
- Flag redundant ARIA on semantic elements.
Focus Management Check
- Verify modals trap focus and restore on close.
- Check that dynamic content updates announce via aria-live if needed.
Contrast and Motion Check
- Flag hardcoded colors that may violate contrast ratios (suggest calculation).
- Detect animations without prefers-reduced-motion support.

Step 5: Categorize Violations

Assign severity:

Critical: Component is unusable via keyboard or screen reader.
Serious: Missing required ARIA or semantic structure.
Moderate: Suboptimal patterns that hinder usability.
Minor: Best practice improvements.

Read the full file on GitHub · 257 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 257 lines · 48 tokens per session scan A e5d0f422eb0d

Subscribe to this mod's changes

a11y-audit-react is a skill published in the GitHub repository vanessamarely/ai-playbook-reposito (2 stars, last pushed 3mo ago), licensed MIT. It adds 48 tokens to every session and 1,958 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Frontend React

a11y-audit-react next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
a11y-audit-reactvanessamarely/ai-playbook-reposito	Skill	2	3mo ago	MIT	A	48	Claude Code, Codex
build-ghost-appTryGhost/Ghost	Skill	56k	yesterday	MIT	A	44	Claude Code, Codex
chakra-ui-builderchakra-ui/chakra-ui	Skill	41k	yesterday	MIT	A	214	Claude Code, Codex
material-ui-tailwindmui/material-ui	Skill	99k	yesterday	MIT	A	67	Claude Code, Codex
fuzzy-rankingTanStack/table	Skill	29k	4d ago	MIT	A	62	Claude Code, Codex
r3f-best-practiceszebbern/claude-code-guide	Skill	4.7k	3d ago	MIT	A	74	Claude Code, Codex
git-safetytamagui/tamagui	Skill	14k	today	MIT	A	0	Claude Code