accessibility

accessibility is a cursor rule for Claude Code, Cursor from eliornl/rolemule. It costs 0 tokens per session (452 once invoked), scanned A, original, MIT.

A set of rules for making HTML and JavaScript interfaces accessible under WCAG 2.1 AA, a widely used web accessibility standard.

In plain words
What is it for?
Use it when building or reviewing web pages. It covers heading structure, navigation and main-content landmarks, accessible buttons, and form labels.
Why use it?
It prevents common barriers such as skipped heading levels, missing page landmarks, and unnamed icon-only buttons.

Cursor rule for Claude CodeCursor

Written for Claude Code and Cursor: installed under .claude/, but also a Cursor rule (.mdc).

Good fit Use it when building or reviewing web pages. It covers heading structure, navigation and main-content landmarks, accessible buttons, and form labels.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/eliornl/rolemule/accessibility
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/eliornl/rolemule

Made for: Claude Code, Cursor.

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

README.md
[![agentmods](https://agentmods.dev/badge/rules/eliornl/rolemule/accessibility/github.svg)](https://agentmods.dev/rules/eliornl/rolemule/accessibility)
Your own site
<a href="https://agentmods.dev/rules/eliornl/rolemule/accessibility"><img src="https://agentmods.dev/badge/rules/eliornl/rolemule/accessibility/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 accessibility

Your own site · 80×15
<a href="https://agentmods.dev/rules/eliornl/rolemule/accessibility"><img src="https://agentmods.dev/badge/rules/eliornl/rolemule/accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 452 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 $0.00000 $0.00452
Opus 5.5 $0.00000 $0.00181
Sonnet 5.5 $0.00000 $0.00090
Haiku 4.5 $0.00000 $0.00045

Measured 1mo ago against content hash 95bf2ed8508f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

accessibility 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.

.claude/rules/accessibility.mdc · 56 lines

What it actually says

Accessibility (WCAG 2.1 AA)

Target: 100% Lighthouse accessibility score. Run npx lighthouse http://localhost:8000/ --only-categories=accessibility to verify.

Heading Hierarchy — Never Skip Levels

<!-- ✅ Correct -->
<h1>Page Title</h1>
<h2>Section</h2>
<h3>Subsection</h3>

<!-- ❌ Wrong — skips h2 -->
<h1>Page Title</h1>
<h3>Section</h3>

Use CSS classes to change visual size without changing semantic level: <h2 class="h4">.

Page Landmarks — Required on Every Page

<body>
    <nav>...</nav>
    <main><!-- all primary content --></main>
    <footer>...</footer>
</body>

<main> must NOT include <nav> or <footer>.

Buttons and Interactive Elements

<!-- ✅ Icon-only button — must have aria-label -->
<button aria-label="Delete application" data-action="delete" data-id="...">
    <i class="fas fa-trash"></i>
</button>

<!-- ❌ Wrong — no accessible name -->
<button><i class="fas fa-trash"></i></button>
  • All <input> / <select> / <textarea> must have associated <label for="..."> or aria-label
  • Links must have descriptive text, not just "click here"

Images and Icons

  • Decorative: <img alt=""> (empty string, not missing)
  • Informative: descriptive alt text
  • Icon fonts (Font Awesome): decorative unless they are the only content of a button

Color and Contrast

  • Normal text: minimum 4.5:1 contrast ratio
  • Large text (18px+ or 14px+ bold): minimum 3:1
  • Never use color as the sole means to convey information (add icons or text labels)
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 · 56 lines · 0 tokens per session scan A 95bf2ed8508f

Subscribe to this mod's changes

accessibility is a cursor rule published in the GitHub repository eliornl/rolemule (38 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 452 tokens. 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.