accessibility-testing

accessibility-testing is a skill for Claude Code, Codex from petrkindlmann/qa-skills. It costs 145 tokens per session (4,399 once invoked), scanned A, original, MIT.

An accessibility testing workflow for checking websites against WCAG 2.2 AA, a common standard for making web content usable by people with disabilities. It combines automated checks with keyboard, screen-reader, and ARIA reviews.

In plain words
What is it for?
Use it to audit web pages with axe-core and Playwright, test keyboard and screen-reader use, validate ARIA patterns, and map issues to compliance obligations.
Why use it?
It finds accessibility barriers that automated tools alone miss and connects findings with legal requirements such as the ADA, EAA, and Section 508.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to audit web pages with axe-core and Playwright, test keyboard and screen-reader use, validate ARIA patterns, and map issues to compliance obligations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/petrkindlmann/qa-skills/accessibility-testing
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 petrkindlmann/qa-skills --skill accessibility-testing
Clone the repo
git clone --depth 1 https://github.com/petrkindlmann/qa-skills

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.

agentmods badge for accessibility-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/petrkindlmann/qa-skills/accessibility-testing.svg)](https://agentmods.dev/skills/petrkindlmann/qa-skills/accessibility-testing)
Your own site
<a href="https://agentmods.dev/skills/petrkindlmann/qa-skills/accessibility-testing"><img src="https://agentmods.dev/badge/skills/petrkindlmann/qa-skills/accessibility-testing.svg" alt="Measured on agentmods" height="20"></a>
Per session 145 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,399 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. Third-party audits
  • Socket pass 11 May 2026
  • Snyk pass 11 May 2026
How audits are shown
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 $0.00145 $0.04399
Opus 5 $0.00072 $0.02200
Sonnet 5 $0.00029 $0.00880
Haiku 4.5 $0.00015 $0.00440

Measured 7d ago against content hash 04f0a8faffba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

accessibility-testing 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 7d 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.

skills/accessibility-testing/SKILL.md · 294 lines

How it starts

The opening of the file, as written. The whole thing — 294 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Discovery Questions

Check .agents/qa-project-context.md first — if it exists, use it as the foundation and skip anything already answered.

Requirements and compliance (sets the target level and audit obligations)

  • What WCAG conformance level is required — A, AA, or AAA? AA is the practical legal default.
  • What laws apply — ADA, EAA/EN 301 549, Section 508, AODA? Each maps to a WCAG level.
  • Is there a VPAT or accessibility statement to maintain, or contractual a11y clauses from enterprise/government customers?

Current state (tells you whether you're auditing or preventing regressions)

  • Has an audit run before? What were the findings, and what's already in the backlog?
  • Does the design system carry accessibility guidance and accessible components?

Testing infrastructure (determines what you can automate vs. must do by hand)

  • Is automated a11y testing already in CI?
  • Which screen readers does the team test with — VoiceOver, NVDA, JAWS, TalkBack?

Core Principles

  1. Automated testing catches 30-40% of issues — no more. axe-core finds missing alt text, low contrast, missing labels, and invalid ARIA. It cannot tell you whether alt text is meaningful, whether tab order is logical, or whether a custom widget is operable. Passing axe is necessary, not sufficient. Crucially, axe ships no automated rule for several WCAG 2.2 success criteria (2.4.11 focus-not-obscured, 2.5.7 dragging movements, and 2.5.8 target-size only partially) — a green axe run does not equal 2.2 AA conformance.

Read the full file on GitHub · 294 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago First seen · 294 lines · 145 tokens per session scan A 04f0a8faffba

Subscribe to this mod's changes

accessibility-testing is a skill published in the GitHub repository petrkindlmann/qa-skills (110 stars, last pushed 2mo ago), licensed MIT. It adds 145 tokens to every session and 4,399 once invoked, about $0.0007 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 2026-08-30.

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