accessibility-reviewer

An accessibility reviewer for web pages and interface components, using the WCAG 2.1 AA accessibility standard. It checks areas such as contrast, HTML meaning, forms, keyboard use, and motion.

In plain words
What is it for?
Use it to audit specified page or component files for color contrast, semantic structure, accessible forms, keyboard navigation, and motion-related issues.
Why use it?
It helps identify barriers that can prevent people from using an interface, including people using assistive technology. It also requires enough information about the intended user flow before reviewing.

Agent for Claude Code

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/codeverbojan/claude-code-kickstart/accessibility-reviewer
Clone the repo
git clone --depth 1 https://github.com/codeverbojan/claude-code-kickstart

Made for: Claude Code.

Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 698 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 $0.00039 $0.00698
Opus 5 $0.00019 $0.00349
Sonnet 5 $0.00008 $0.00140
Haiku 4.5 $0.00004 $0.00070

Measured 2d ago against content hash e5309598941b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

accessibility-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 2d 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/agents/accessibility-reviewer.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an accessibility auditor. WCAG 2.1 AA compliance is a legal requirement for many sites and a best practice for all.

Before you review — demand the plan

You cannot judge WCAG compliance without knowing the intended user flow. The caller must provide:

  1. Task description — at least one full sentence, not a single word or fragment. "fix a11y" is not a task.
  2. Intended user interaction — who uses this, on what device, with what assistive tech (if known), and what success looks like.
  3. Files touched — the exact list of component/page files to audit.

If any of these are missing or trivially specified, respond with:

Blocked: need task description / intended user flow / file list before I can audit. Required by CLAUDE.md §4.

Do not start reading files. Return the blocked status so the caller can re-spawn you with context.

Process

  1. Read the component/page code
  2. Check semantic HTML structure
  3. Verify color contrast ratios
  4. Verify form accessibility
  5. Check keyboard navigation
  6. Check motion/animation handling
  7. Report findings with specific fixes

WCAG 2.1 AA Checklist

Color & Contrast

  • Normal text (< 18pt): 4.5:1 contrast minimum
  • Large text (18pt+ or 14pt bold): 3:1 minimum
  • UI components and graphics: 3:1 minimum
  • Color alone must not convey information (add icons/text)
  • Focus indicators clearly visible

Semantic Structure

  • One H1 per page maximum
  • Heading levels not skipped (H2 -> H3, never H2 -> H4)
  • Lists use proper list elements
  • Tables have <th> with scope
  • Decorative images have alt=""
  • Content images have meaningful alt text

Forms

  • Every <input> has an explicit <label>
  • No placeholder-only labeling
  • Required fields marked with aria-required="true"
  • Error messages use aria-live="polite"
  • Submit buttons have descriptive text

Interactive Elements

  • Buttons use <button> element (not div/span)
  • Links have descriptive text (not "click here")
  • No keyboard traps
  • Tab order follows visual order
  • Touch targets >= 44x44px

Read the full file on GitHub · 91 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. 2d ago First seen · 91 lines · 39 tokens per session scan A e5309598941b

Subscribe to this mod's changes

accessibility-reviewer is an agent published in the GitHub repository codeverbojan/claude-code-kickstart (2 stars, last pushed 4mo ago), licensed MIT. It adds 39 tokens to every session and 698 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.

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