a11y-ops

a11y-ops is a skill for Claude Code from 0xDarkMatter/claude-mods. It costs 131 tokens per session (2,910 once invoked), scanned A, original, MIT.

A web-accessibility workflow based on WCAG 2.2, the international guidelines for making websites usable by people with disabilities. It covers legal context, automated checks, keyboard use, screen readers, custom controls, forms, focus, and honest accessibility statements.

In plain words
What is it for?
Use it to audit websites and component libraries, check keyboard and screen-reader behaviour, review forms and dialogs, and assess relevant EAA or ADA obligations.
Why use it?
Automated scanners find only part of the problem, so inaccessible controls and forms can reach users even when a site has a high tool-generated score. It helps identify practical failures and relate them to applicable requirements.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the claude-mods plugin — 112 skills, 3 commands, 3 agents, 4 hooks shipped together

Good fit Use it to audit websites and component libraries, check keyboard and screen-reader behaviour, review forms and dialogs, and assess relevant EAA or ADA obligations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0xdarkmatter/claude-mods/a11y-ops
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 0xDarkMatter/claude-mods --skill a11y-ops
Clone the repo
git clone --depth 1 https://github.com/0xDarkMatter/claude-mods

Made for: Claude Code.

Or install claude-mods, the plugin that ships this one along with the rest of its 112 skills, 3 commands, 3 agents, 4 hooks.

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-ops

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/a11y-ops/github.svg)](https://agentmods.dev/skills/0xdarkmatter/claude-mods/a11y-ops)
Your own site
<a href="https://agentmods.dev/skills/0xdarkmatter/claude-mods/a11y-ops"><img src="https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/a11y-ops/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-ops

Your own site · 80×15
<a href="https://agentmods.dev/skills/0xdarkmatter/claude-mods/a11y-ops"><img src="https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/a11y-ops.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,910 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 $0.00131 $0.02910
Opus 5.5 $0.00052 $0.01164
Sonnet 5.5 $0.00026 $0.00582
Haiku 4.5 $0.00013 $0.00291

Measured 1mo ago against content hash 79dc0aa7718a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

a11y-ops 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/scan-a11y.py, tests/run.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/a11y-ops/SKILL.md · 235 lines

How it starts

The opening of the file, as written. The whole thing — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.

a11y-ops

Accessibility stopped being a quality preference and became a legal requirement with dates attached. It is also, unhelpfully, a domain where the tooling everyone reaches for finds well under half the problems — so the work is mostly about knowing where automation stops.

Helps with

"Is our site compliant?" — a question with a real answer that depends on which jurisdiction, which standard version, and which deadline applies to that client.

An audit that needs to find real failures rather than produce a score. Vendor "94% accessible" numbers correspond to nothing in the standard.

A component library where every custom control is mouse-only, because a <div> replaced a <button> and nothing replaced what the <button> was doing.

Forms that lose conversions from screen reader and keyboard users: placeholders used as labels, errors signalled only in red, no autocomplete.

outline: none shipped across a design system, leaving keyboard users with no idea where they are.

A modal, dropdown or date picker that traps focus, or drops it, or never returns it to the trigger.

Writing an accessibility statement that is honest enough to be defensible rather than an overclaim that creates its own liability.

Wiring accessibility into CI so a fix stays fixed instead of being re-bought at the next audit.

The two things that decide everything

1. Automated tooling finds roughly 30–40% of WCAG failures. Every plan follows from this. A green axe run is a floor, not a result — the rest needs a keyboard and a human. Anyone selling automated compliance is selling the 30%.

2. Use the native element. <button>, <a href>, <input>, <select>, <details> arrive with focusability, keyboard activation, correct role and state announcement already handled. Almost every failure in the catalogue comes from replacing one with a <div> and rebuilding a fraction of what was lost. Its corollary is the first rule of ARIA: no ARIA beats bad ARIA, because role="button" claims a contract a div does not fulfil.

Read the full file on GitHub · 235 lines

Files

What ships with it

7 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. 1mo ago Changed · +29 lines · -66 tokens per session 79dc0aa7718a
  2. 1mo ago First seen · 206 lines · 197 tokens per session scan A 5ef087cbe7d7

Subscribe to this mod's changes

a11y-ops is a skill published in the GitHub repository 0xDarkMatter/claude-mods (79 stars, last pushed 7d ago), licensed MIT. It adds 131 tokens to every session and 2,910 once invoked, about $0.0005 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 2026-09-17.

Related

a11y-ops compared with skills from other repositories

a11y-ops next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
a11y-ops0xDarkMatter/claude-modsSkill797d agoMITA131Claude Code
brand-identitytravisjneuman/.claudeSkill107yesterdayMITA30Claude Code, Codex
ai-policy-generatortravisjneuman/.claudeSkill107yesterdayMITA42Claude Code, Codex
contract-redlinertravisjneuman/.claudeSkill107yesterdayMITA41Claude Code, Codex
legal-compliancetravisjneuman/.claudeSkill107yesterdayMITA49Claude Code, Codex
generic-react-ux-designertravisjneuman/.claudeSkill107yesterdayMITA69Claude Code, Codex
graphic-designtravisjneuman/.claudeSkill107yesterdayMITA32Claude Code, Codex