a11y-review

a11y-review is a skill for Claude Code from RadOrigin-LLC/RAD-Claude-Skills. It costs 161 tokens per session (6,637 once invoked), scanned A, original, Apache-2.0.

A static accessibility review workflow for JSX, HTML, Astro, and CSS code. It performs eight analysis phases and returns a severity-ranked report with findings marked as definite, likely, or needing manual confirmation.

In plain words
What is it for?
Use it to review a component, page, or codebase for issues such as missing image text, broken form labels, unnamed icon buttons, unsafe ARIA, hidden focusable content, and some color-contrast problems.
Why use it?
It exposes source-level accessibility problems while being honest about what static code inspection cannot prove. It does not replace browser testing, automated axe checks, keyboard checks, or screen-reader testing.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the rad-a11y plugin — 6 skills, 1 agent shipped together

Good fit Use it to review a component, page, or codebase for issues such as missing image text, broken form labels, unnamed icon buttons, unsafe ARIA, hidden focusable content, and some color-contrast problems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/radorigin-llc/rad-claude-skills/a11y-review
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 RadOrigin-LLC/RAD-Claude-Skills --skill a11y-review
Clone the repo
git clone --depth 1 https://github.com/RadOrigin-LLC/RAD-Claude-Skills

Made for: Claude Code.

Or install rad-a11y, the plugin that ships this one along with the rest of its 6 skills, 1 agent.

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.

agentmods badge for a11y-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/radorigin-llc/rad-claude-skills/a11y-review/github.svg)](https://agentmods.dev/skills/radorigin-llc/rad-claude-skills/a11y-review)
Your own site
<a href="https://agentmods.dev/skills/radorigin-llc/rad-claude-skills/a11y-review"><img src="https://agentmods.dev/badge/skills/radorigin-llc/rad-claude-skills/a11y-review/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.

agentmods 80×15 button for a11y-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/radorigin-llc/rad-claude-skills/a11y-review"><img src="https://agentmods.dev/badge/skills/radorigin-llc/rad-claude-skills/a11y-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 161 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,637 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00161 $0.06637
Opus 5 $0.00081 $0.03318
Sonnet 5 $0.00032 $0.01327
Haiku 4.5 $0.00016 $0.00664

Measured 12d ago against content hash faad14fa8d04, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

a11y-review 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 12d 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.

archive/plugins/rad-a11y/skills/a11y-review/SKILL.md · 450 lines

How it starts

The opening of the file, as written. The whole thing — 450 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility Review (static analysis)

Perform a structured static analysis pass over the specified component, page, or codebase. Execute all eight phases in order and produce an actionable, severity-ranked report with each finding tagged by confidence level.

What this skill is — and what it isn't

This skill performs pattern-based static analysis over .tsx / .jsx / .astro / .html / .css source. It is not a WCAG audit, does not run axe-core, does not test runtime focus behavior, and does not test with screen readers. It does compute WCAG sRGB contrast ratios for Tailwind class pairs co-occurring on the same element (the check-tailwind-contrast.py validator), but it cannot see DOM-inherited backgrounds without runtime.

What this skill catches well (high confidence):

  • Missing alt on <img>, missing <label> association, missing accessible name on icon buttons
  • outline: none / outline-none without a focus-visible replacement (Tailwind users — axe often misses this because it inspects computed styles)
  • aria-hidden="true" on focusable elements or their ancestors
  • Hardcoded ARIA states (aria-expanded="true" as a string literal, not driven by component state)
  • <div onClick> / <span onClick> without role + keyboard handlers
  • Skipped heading levels, missing landmarks
  • React-specific focus drift (modal close handlers without focus restoration)
  • Color contrast for Tailwind class pairs on the same elementcheck-tailwind-contrast.py computes real WCAG 2.x sRGB ratios from the Tailwind v3 default palette plus custom colors parsed from tailwind.config.{js,ts,cjs,mjs}. Flags AA failures (4.5:1 body / 3:1 large or UI) and surfaces the actual computed ratio. Function-based palettes (colors imported from another file) are skipped with a warning.

What this skill flags but cannot confirm (medium confidence):

  • Color contrast where the background comes from a DOM ancestor — the validator can't resolve inherited backgrounds across the rendered tree without a browser
  • Color contrast involving alpha-blended (translucent) backgrounds — not handled by the validator
  • ARIA state synchronization beyond the simplest cases
  • Whether a <fieldset> correctly wraps a logical group

Read the full file on GitHub · 450 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.

  1. 12d ago First seen · 450 lines · 161 tokens per session scan A faad14fa8d04

Subscribe to this mod's changes

a11y-review is a skill published in the GitHub repository RadOrigin-LLC/RAD-Claude-Skills (5 stars, last pushed 26d ago), licensed Apache-2.0. It adds 161 tokens to every session and 6,637 once invoked, about $0.0008 per session on Opus 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.

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