wcag-audit-patterns

wcag-audit-patterns is a skill for Claude Code from wshobson/agents. It costs 45 tokens per session (535 once invoked), scanned A, original, MIT.

A guide for checking websites against WCAG 2.2, the international rules for making web content usable by people with disabilities. It covers automated checks, manual review, and fixes.

In plain words
What is it for?
Use it to audit websites, identify violations by severity, apply accessible interface patterns, and plan remediation for WCAG compliance.
Why use it?
It helps find accessibility barriers such as missing image descriptions, keyboard problems, form-label issues, and poor color contrast.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the accessibility-compliance plugin — 2 skills, 1 command, 1 agent shipped together

not rated 42krepo +629 5d ago A scan Socket: passSnyk: passSkillSpector: pass 45 tokens original MIT

Good fit Use it to audit websites, identify violations by severity, apply accessible interface patterns, and plan remediation for WCAG compliance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wshobson/agents/wcag-audit-patterns
About the project

Agentic Plugin Marketplace is a collection of reusable plugins, agents, skills, commands, and rules for coding-agent tools including Claude Code, Codex CLI, Cursor, OpenCode, Antigravity CLI, and GitHub Copilot. It is for developers assembling agentic workflows across multiple harnesses from shared Markdown sources, and the catalogue entries are examples or subsets of those workflow components.

wshobson/agents · 41,613 stars · on GitHub · sethhobson.com

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 wshobson/agents --skill wcag-audit-patterns
Clone the repo
git clone --depth 1 https://github.com/wshobson/agents

Made for: Claude Code.

Or install accessibility-compliance, the plugin that ships this one along with the rest of its 2 skills, 1 command, 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 wcag-audit-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/wshobson/agents/wcag-audit-patterns/github.svg)](https://agentmods.dev/skills/wshobson/agents/wcag-audit-patterns)
Your own site
<a href="https://agentmods.dev/skills/wshobson/agents/wcag-audit-patterns"><img src="https://agentmods.dev/badge/skills/wshobson/agents/wcag-audit-patterns/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 wcag-audit-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/wshobson/agents/wcag-audit-patterns"><img src="https://agentmods.dev/badge/skills/wshobson/agents/wcag-audit-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 535 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 15 Sept 2026
  • Snyk pass 15 Sept 2026
  • NVIDIA SkillSpector pass 7 Sept 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 $0.00045 $0.00535
Opus 5.5 $0.00018 $0.00214
Sonnet 5.5 $0.00009 $0.00107
Haiku 4.5 $0.00005 $0.00053

Measured 1mo ago against content hash db263a3405de, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

wcag-audit-patterns 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 1mo 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

plugins/accessibility-compliance/skills/wcag-audit-patterns/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WCAG Audit Patterns

Comprehensive guide to auditing web content against WCAG 2.2 guidelines with actionable remediation strategies.

When to Use This Skill

  • Conducting accessibility audits
  • Fixing WCAG violations
  • Implementing accessible components
  • Preparing for accessibility lawsuits
  • Meeting ADA/Section 508 requirements
  • Achieving VPAT compliance

Core Concepts

1. WCAG Conformance Levels

Level Description Required For
A Minimum accessibility Legal baseline
AA Standard conformance Most regulations
AAA Enhanced accessibility Specialized needs

2. POUR Principles

Perceivable:  Can users perceive the content?
Operable:     Can users operate the interface?
Understandable: Can users understand the content?
Robust:       Does it work with assistive tech?

3. Common Violations by Impact

Critical (Blockers):
├── Missing alt text for functional images
├── No keyboard access to interactive elements
├── Missing form labels
└── Auto-playing media without controls

Serious:
├── Insufficient color contrast
├── Missing skip links
├── Inaccessible custom widgets
└── Missing page titles

Moderate:
├── Missing language attribute
├── Unclear link text
├── Missing landmarks
└── Improper heading hierarchy

Detailed patterns and worked examples

Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.

Best Practices

Do's

  • Start early - Accessibility from design phase
  • Test with real users - Disabled users provide best feedback
  • Automate what you can - 30-50% issues detectable
  • Use semantic HTML - Reduces ARIA needs
  • Document patterns - Build accessible component library

Don'ts

  • Don't rely only on automated testing - Manual testing required
  • Don't use ARIA as first solution - Native HTML first
  • Don't hide focus outlines - Keyboard users need them
  • Don't disable zoom - Users need to resize
  • Don't use color alone - Multiple indicators needed

Read the full file on GitHub · 81 lines

Files

What ships with it

1 file 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. 1mo ago First seen · 81 lines · 45 tokens per session scan A db263a3405de

Subscribe to this mod's changes

wcag-audit-patterns is a skill published in the GitHub repository wshobson/agents (41,613 stars, last pushed 5d ago), licensed MIT. It adds 45 tokens to every session and 535 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 2026-08-30.

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