a11y-review

a11y-review is an agent for Claude Code from bdfinst/agentic-dev-team. It costs 25 tokens per session (1,164 once invoked), scanned A, original, MIT.

An accessibility reviewer for web interface components. It checks whether pages and components follow WCAG 2.1 AA, a widely used accessibility standard, including semantic HTML, ARIA, keyboard use, and focus behavior.

In plain words
What is it for?
Reviewing Svelte, HTML, JSX, TSX, Vue, Razor, CSHTML, and JSP component files. It reports accessibility problems and can skip projects that contain no relevant UI markup.
Why use it?
It finds barriers that can prevent people using keyboards or assistive technology from using an interface. Issues are classified by status, severity, and confidence.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the dev-team plugin — 98 skills, 54 agents, 4 hooks shipped together

Good fit Reviewing Svelte, HTML, JSX, TSX, Vue, Razor, CSHTML, and JSP component files. It reports accessibility problems and can skip projects that contain no relevant UI markup.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add bdfinst/agentic-dev-team
Claude Code
/plugin install dev-team

Made for: Claude Code.

Or install dev-team, the plugin that ships this one along with the rest of its 98 skills, 54 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-review

README.md
[![agentmods](https://agentmods.dev/badge/agents/bdfinst/agentic-dev-team/a11y-review/github.svg)](https://agentmods.dev/agents/bdfinst/agentic-dev-team/a11y-review)
Your own site
<a href="https://agentmods.dev/agents/bdfinst/agentic-dev-team/a11y-review"><img src="https://agentmods.dev/badge/agents/bdfinst/agentic-dev-team/a11y-review/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-review

Your own site · 80×15
<a href="https://agentmods.dev/agents/bdfinst/agentic-dev-team/a11y-review"><img src="https://agentmods.dev/badge/agents/bdfinst/agentic-dev-team/a11y-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,164 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 $0.00025 $0.01164
Opus 5.5 $0.00010 $0.00466
Sonnet 5.5 $0.00005 $0.00233
Haiku 4.5 $0.00003 $0.00116

Measured 1mo ago against content hash 903e0bace04d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

a11y-review 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.

plugins/dev-team/agents/a11y-review.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility Review

Scope:

  • **/*.svelte
  • **/*.html
  • **/*.jsx
  • **/*.tsx
  • **/*.vue
  • **/*.razor
  • **/*.cshtml
  • **/*.jsp Cites: [adversarial-review-protocol]

Scope: UI component and template files only (.svelte, .html, .jsx, .tsx, .vue, .razor, .cshtml, .jsp). Skip non-component files (utilities, services, stores, configs, tests, routes/pages without markup).

Output JSON: per ${CLAUDE_PLUGIN_ROOT}/knowledge/review-agent-output-contract.md (Whole-file load: short, canonical schema).

Status: pass=accessible, warn=minor gaps, fail=WCAG AA violations Severity: error=blocks users, warning=degrades experience, suggestion=enhancement Confidence: high=mechanical fix (add missing attribute, swap element); medium=direction clear, implementation may vary; none=requires human judgment (design decisions, color palette)

Context needs: full-file

Skip

Return {"status": "skip", "issues": [], "summary": "No UI component files found"} when:

  • Target contains only logic files, configs, tests, or utilities
  • No .svelte, .html, .jsx, .tsx, .vue, .razor, .cshtml, or .jsp files with component markup present
  • Files are non-component modules (stores, services, helpers, route loaders)

Detect

Semantic HTML:

  • div/span used where semantic element fits (nav, main, section, article, aside, header, footer)
  • Heading levels skipped (h1 to h3 without h2)
  • Lists of items not using ul/ol/li
  • Buttons implemented as clickable divs or spans

ARIA attributes:

  • Interactive elements missing accessible names (aria-label, aria-labelledby, or visible text)
  • Redundant ARIA on elements with implicit roles (role="button" on button)
  • aria-hidden="true" on focusable elements
  • Missing aria-live for dynamic content updates

Keyboard navigation:

  • Click handlers without corresponding keyboard handlers (onkeydown/onkeyup)
  • Custom interactive elements missing tabindex
  • Focus traps without escape mechanism
  • Missing visible focus indicators (outline:none without replacement)

Color and contrast:

Read the full file on GitHub · 119 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. 1mo ago First seen · 119 lines · 25 tokens per session scan A 903e0bace04d

Subscribe to this mod's changes

a11y-review is an agent published in the GitHub repository bdfinst/agentic-dev-team (295 stars, last pushed 4d ago), licensed MIT. It adds 25 tokens to every session and 1,164 once invoked, about $0.0001 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.