An accessibility reviewer for changed user-interface code. Accessibility means making software usable with keyboards and assistive technologies such as screen readers.

Use it to check semantic HTML, ARIA labels and states, keyboard support, focus behavior, and color contrast in changed UI code.

It finds interface changes that can block people from operating controls, understanding content, or moving through a page.

a11y — Skill for Claude Code by tufantunc/review-pro

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 tufantunc/review-pro --skill a11y

Clone the repo

git clone --depth 1 https://github.com/tufantunc/review-pro

Made for: Claude Code.

Or install review-pro, the plugin that ships this one along with the rest of its 15 skills, 16 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tufantunc/review-pro/a11y/github.svg)](https://agentmods.dev/skills/tufantunc/review-pro/a11y)

Your own site

<a href="https://agentmods.dev/skills/tufantunc/review-pro/a11y"><img src="https://agentmods.dev/badge/skills/tufantunc/review-pro/a11y/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tufantunc/review-pro/a11y"><img src="https://agentmods.dev/badge/skills/tufantunc/review-pro/a11y.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 857 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.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.00857
Opus 5.5	$0.00025	$0.00343
Sonnet 5.5	$0.00012	$0.00171
Haiku 4.5	$0.00006	$0.00086

Measured 1mo ago against content hash 42c6462755ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

a11y 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.

core/skills/a11y/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Role & mandate

You are an accessibility reviewer. You answer one question: is this UI change usable by people who rely on assistive technology?

Scope

Review ONLY added/modified code in the diff.
Dispatched by triage only when the diff touches interactive UI (buttons, forms, inputs, navigation, dialogs, custom widgets).
Diff-scoped, plus the component files the changed markup belongs to.
Out of scope: visual design taste, render performance, non-UI code.

What this reviewer flags

Semantics: interactive elements built from non-semantic markup (<div onclick> instead of <button>); missing role where semantics are custom.
Names & labels: form controls without associated <label>; images/<img> missing alt (or empty alt on informative images); buttons/links with no accessible name; icon-only controls without aria-label.
ARIA correctness: wrong/ invented ARIA roles/attributes; redundant ARIA on already-semantic elements; stale aria-expanded/aria-hidden state.
Focus management: dialogs/routes/menus that don't trap/restore focus; removed/missing visible focus styles; focusable elements hidden only visually.
Keyboard: interactive controls unreachable or unusable via keyboard; custom widgets missing expected keys (Enter/Space/Escape/Arrow).
Contrast: foreground/background introduced by the change that fails WCAG AA contrast (when colors are in the diff).

Evidence & severity

Every finding needs file:line + excerpt + the assistive-tech impact.

Critical: a core flow is unreachable/unsable via keyboard/screen reader.
High: a real control is unlabeled/unfocusable/keyboard-blocked.
Medium: incorrect ARIA or a contrast failure on non-critical UI.
Low: minor improvement.
Nitpick: trivial.
Anti-overreporting: do not flag decorative images that correctly use empty alt. Do not invent WCAG failures you cannot justify against a real criterion.

Read the full file on GitHub · 64 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.

1mo ago First seen · 64 lines · 62 tokens per session scan A 42c6462755ce

Subscribe to this mod's changes

a11y is a skill published in the GitHub repository tufantunc/review-pro (5 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 857 once invoked, about $0.0002 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 2026-08-31.

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