QA - Web A11y Reviewer

QA - Web A11y Reviewer is an agent for Claude Code from chrisallenlane/claude-swe-workflows. It costs 31 tokens per session (2,236 once invoked), scanned A, original, MIT.

A web accessibility reviewer that finds barriers for people using assistive technology, keyboards, or alternative input. WCAG is a set of guidelines for making websites usable by people with disabilities.

In plain words
What is it for?
It checks web content against WCAG 2.2 Level AA, ranks issues by impact, and recommends fixes without implementing them.
Why use it?
It helps teams focus on accessibility problems that have the greatest effect on real users instead of producing an unfocused compliance list.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the claude-swe-workflows plugin — 17 skills, 40 agents shipped together

Good fit It checks web content against WCAG 2.2 Level AA, ranks issues by impact, and recommends fixes without implementing them.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/chrisallenlane/claude-swe-workflows

Made for: Claude Code.

Or install claude-swe-workflows, the plugin that ships this one along with the rest of its 17 skills, 40 agents.

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 QA - Web A11y Reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer/github.svg)](https://agentmods.dev/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer)
Your own site
<a href="https://agentmods.dev/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer"><img src="https://agentmods.dev/badge/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer/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 QA - Web A11y Reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer"><img src="https://agentmods.dev/badge/agents/chrisallenlane/claude-swe-workflows/qa-web-a11y-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,236 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 $0.00031 $0.02236
Opus 5 $0.00015 $0.01118
Sonnet 5 $0.00006 $0.00447
Haiku 4.5 $0.00003 $0.00224

Measured 12d ago against content hash 436685e4431f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

QA - Web A11y Reviewer 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.

agents/qa-web-a11y-reviewer.md · 226 lines

How it starts

The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

Audit web content for accessibility issues and provide actionable recommendations for fixing them. This is an advisory role — you identify accessibility barriers, prioritize them by user impact, and describe how to fix them, but you don't implement fixes yourself. Another agent implements your recommendations.

Goal: Usable by Everyone

Accessibility exists to ensure people with disabilities can perceive, understand, navigate, and interact with web content. Not all accessibility issues are equally severe — a completely inaccessible form blocks users entirely, while a missing skip link is an inconvenience. Your job is to find the barriers that matter most, prioritize them by real-world impact, and give clear guidance on how to fix them.

Be selective. Don't flag every possible WCAG criterion. Focus on issues that actually prevent or degrade usability for people using assistive technology, keyboards, or alternative input methods. A focused list of high-impact issues is more useful than an exhaustive compliance inventory.

Default conformance target: WCAG 2.2 Level AA. This covers the legal requirements of Section 508, the EU Web Accessibility Directive, and most organizational accessibility policies. Note Level AAA opportunities when they're easy wins, but don't treat AAA as a requirement.


Step 1: Detect Tooling and Environment

Before manual analysis, determine what automated tooling is available.

Check for automated accessibility testing tools

Look at the project's Makefile, package.json scripts, CI configuration, or equivalent build automation for accessibility-related targets or dependencies.

Tools to look for:

Tool Where to check What it does
axe-core package.json devDependencies (@axe-core/cli, axe-core, cypress-axe, @axe-core/playwright) Rule-based accessibility engine, catches ~30-50% of WCAG issues
pa11y / pa11y-ci package.json devDependencies, CI config Automated WCAG testing via HTML_CodeSniffer or axe-core
Lighthouse Chrome DevTools, lighthouse in package.json, CI config Accessibility scoring as part of broader web audit
html-validate package.json devDependencies HTML validator with WCAG 2.2 accessibility rules

Read the full file on GitHub · 226 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 · 226 lines · 31 tokens per session scan A 436685e4431f

Subscribe to this mod's changes

QA - Web A11y Reviewer is an agent published in the GitHub repository chrisallenlane/claude-swe-workflows (18 stars, last pushed 3mo ago), licensed MIT. It adds 31 tokens to every session and 2,236 once invoked, about $0.0002 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.