a11y

a11y is a skill for Claude Code, Codex from launch52-ai/flutter-template. It costs 57 tokens per session (792 once invoked), scanned A, original, MIT.

A skill for auditing and improving accessibility in Flutter apps. Accessibility means making an app usable with screen readers, different text sizes, keyboards, and other assistive tools.

In plain words
What is it for?
Use it to add semantic labels, check screen-reader support, measure contrast, enforce touch-target guidance, manage focus, and generate accessibility tests.
Why use it?
It helps find barriers such as missing labels, poor colour contrast, small touch targets, or incorrect focus behaviour.

Skill for Claude CodeCodex

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 skills/launch52-ai/flutter-template/a11y
Any agent
npx skills add launch52-ai/flutter-template --skill a11y
Clone the repo
git clone --depth 1 https://github.com/launch52-ai/flutter-template

Made for: Claude Code, Codex.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/launch52-ai/flutter-template/a11y.svg)](https://agentmods.dev/skills/launch52-ai/flutter-template/a11y)
Your own site
<a href="https://agentmods.dev/skills/launch52-ai/flutter-template/a11y"><img src="https://agentmods.dev/badge/skills/launch52-ai/flutter-template/a11y.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 792 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 $0.00057 $0.00792
Opus 5 $0.00028 $0.00396
Sonnet 5 $0.00011 $0.00158
Haiku 4.5 $0.00006 $0.00079

Measured 3d ago against content hash e1c96dd13d55, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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/skills/a11y/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

a11y - Accessibility Implementation

Make Flutter apps accessible to everyone. Semantic labels, screen reader support, WCAG compliance.

When to Use This Skill

  • Adding semantic labels to custom widgets
  • Auditing code for accessibility issues
  • Testing with screen readers (TalkBack/VoiceOver)
  • Fixing accessibility violations
  • Implementing focus management

Quick Reference

The Four Pillars

  1. Perceivable - Semantic labels, contrast ≥4.5:1, text scaling
  2. Operable - Touch targets ≥48dp, focus order, keyboard nav
  3. Understandable - Clear labels, error guidance
  4. Robust - Semantics widget, live regions, proper roles

Key Requirements

Check Requirement Test
Contrast ≥4.5:1 textContrastGuideline
Touch targets ≥48×48dp androidTapTargetGuideline
Labels All interactive labeledTapTargetGuideline

Commands

# Audit for accessibility issues
dart run .claude/skills/a11y/scripts/check.dart

# Audit specific feature
dart run .claude/skills/a11y/scripts/check.dart --feature auth

# Generate accessibility test file
dart run .claude/skills/a11y/scripts/check.dart --generate-tests feature_name

Workflow

1. Audit

dart run .claude/skills/a11y/scripts/check.dart --feature {feature}

Look for: Images without semanticLabel, IconButton without tooltip, custom widgets without Semantics.

2. Add Semantics

Use patterns from semantics-guide.md:

  • Images: semanticLabel property
  • Icon buttons: tooltip property
  • Custom widgets: Semantics wrapper

3. Test

Add accessibility tests per testing-guide.md:

await expectLater(tester, meetsGuideline(textContrastGuideline));
await expectLater(tester, meetsGuideline(androidTapTargetGuideline));
await expectLater(tester, meetsGuideline(labeledTapTargetGuideline));

4. Manual Verification

Test with VoiceOver (iOS) and TalkBack (Android). All controls should be announced clearly.

Read the full file on GitHub · 104 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 104 lines · 57 tokens per session scan A e1c96dd13d55

Subscribe to this mod's changes

a11y is a skill published in the GitHub repository launch52-ai/flutter-template (2 stars, last pushed 6mo ago), licensed MIT. It adds 57 tokens to every session and 792 once invoked, about $0.0003 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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