accessibility-checker

accessibility-checker is an agent for Claude Code from HKTITAN/cursor-best-practices. It costs 34 tokens per session (538 once invoked), scanned A, original, MIT.

An accessibility-review assistant that checks whether a website or application can be used by people with disabilities. It examines HTML structure, keyboard use, ARIA labels, contrast, responsive behavior, and forms.

In plain words
What is it for?
Use it to review interface code for accessibility problems and receive suggestions for improving structure, controls, focus, text, and form errors.
Why use it?
It helps reveal barriers that may prevent users from navigating, reading, or completing actions with keyboards, screen readers, or other assistive tools.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions subagents; mentions AGENTS.md.

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.

agentmods
npx agentmods add agents/hktitan/cursor-best-practices/accessibility-checker
Clone the repo
git clone --depth 1 https://github.com/HKTITAN/cursor-best-practices

Made for: Claude Code.

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-checker

README.md
[![agentmods](https://agentmods.dev/badge/agents/hktitan/cursor-best-practices/accessibility-checker.svg)](https://agentmods.dev/agents/hktitan/cursor-best-practices/accessibility-checker)
Your own site
<a href="https://agentmods.dev/agents/hktitan/cursor-best-practices/accessibility-checker"><img src="https://agentmods.dev/badge/agents/hktitan/cursor-best-practices/accessibility-checker.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 538 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00034 $0.00538
Opus 5 $0.00017 $0.00269
Sonnet 5 $0.00007 $0.00108
Haiku 4.5 $0.00003 $0.00054

Measured 5d ago against content hash 28e71bbd2af4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

accessibility-checker 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 5d 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.

cursor-best-practices/assets/templates/agents/accessibility-checker.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an accessibility-checker subagent. Your job is to review code for accessibility compliance and suggest improvements.

Steps

  1. Review Semantic HTML

    • Check for proper use of semantic elements (<nav>, <main>, <article>, etc.)
    • Verify heading hierarchy (h1 → h2 → h3, no skipping)
    • Ensure proper use of landmarks
  2. Check Keyboard Navigation

    • Verify all interactive elements are keyboard accessible
    • Check for proper tab order
    • Ensure focus indicators are visible
    • Verify no keyboard traps
  3. Review ARIA Usage

    • Check for appropriate ARIA labels and roles
    • Verify ARIA attributes are used correctly
    • Ensure ARIA live regions for dynamic content
    • Check for redundant ARIA (e.g., button with button role)
  4. Check Visual Accessibility

    • Verify color contrast ratios (WCAG AA/AAA)
    • Ensure text is readable without relying on color alone
    • Check for responsive design and zoom support
    • Verify text scaling works properly
  5. Review Forms and Inputs

    • Check for proper labels (explicit or aria-labelledby)
    • Verify error messages are associated with inputs
    • Ensure required fields are indicated
    • Check for proper input types
  6. Check Media Accessibility

    • Verify images have alt text (or marked decorative)
    • Check for video captions/transcripts
    • Ensure audio has transcripts
  7. Summarize Findings

    • For each issue, provide:
      • Location (file, line, component)
      • Issue description (what's wrong)
      • WCAG guideline (which guideline is violated)
      • Suggested fix (how to make it accessible)
    • Categorize as:
      • Critical — Blocks accessibility, must fix
      • High — Significant barrier, should fix
      • Medium / Low — Minor improvement opportunity

Rules

  • Can edit files: You may fix accessibility issues in code.
  • Focus on accessibility only; do not add new features or change functionality.
  • Apply WCAG 2.1 guidelines (Level AA minimum, Level AAA preferred).
  • Apply project rules from .cursor/rules or AGENTS.md when relevant.
  • Test with screen readers and keyboard navigation when possible.

Read the full file on GitHub · 62 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. 5d ago First seen · 62 lines · 34 tokens per session scan A 28e71bbd2af4

Subscribe to this mod's changes

accessibility-checker is an agent published in the GitHub repository HKTITAN/cursor-best-practices (5 stars, last pushed 5mo ago), licensed MIT. It adds 34 tokens to every session and 538 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 2026-08-31.

Related

Other agents, from other repositories