Agent skill

Accessibility

WCAG 2.2 レベル AA 標準を用いてインクルーシブなデジタルプロダクトを設計・実装・監査します。Web 用のセマンティック ARIA および Web・ネイティブプラットフォーム（iOS/Android）のアクセシビリティトレイトを生成するために使用します。

MITAuto-check passedFrontend & Design

Install Accessibility

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .claude/skills/accessibility && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .claude/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .agents/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .agents/skills/accessibility && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .agents/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .cursor/skills/accessibility && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .cursor/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/affaan-m/ECC.git --path docs/ja-JP/skills/accessibility

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .gemini/skills/accessibility && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .gemini/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .github/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .github/skills/accessibility && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .github/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add affaan-m/ECC --skill accessibility -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC accessibility --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/docs/ja-JP/skills/accessibility .opencode/skills/accessibility && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "accessibility" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/accessibility into .opencode/skills/accessibility/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "accessibility", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: accessibility
GitHub stars: 276k
Token cost: ~1.2k tokens
SKILL.md length: 170 words
Files: 1
Skills in repo: 673
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Tasks that involve Accessibility
SKILL.md covers 使用タイミング, コアコンセプト, 仕組み and アクセシビリティアーキテクチャ図, plus 6 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Accessibility is an agent skill from affaan-m/ECC. WCAG 2.2 レベル AA 標準を用いてインクルーシブなデジタルプロダクトを設計・実装・監査します。Web 用のセマンティック ARIA および Web・ネイティブプラットフォーム（iOS/Android）のアクセシビリティトレイトを生成するために使用します。

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Accessibility. It works with iOS and Android. The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.

When your agent uses it

Tasks that involve Accessibility

Example prompts

“/accessibility”

What it can do on your machine

Read from SKILL.md and the folder at commit ef648e0. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are mermaid, html, swift and kotlin).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- w3.org
- developer.apple.com
- developer.android.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Accessibility loads about 1.2k tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 170 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~37
When it runs · the whole SKILL.md, loaded when a task matches: ~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from affaan-m/ECC at commit ef648e0, republished under its MIT licence (© affaan-m). 170 words, ~1,184 tokens.

Download SKILL.mdSave it as .claude/skills/accessibility/SKILL.md (or your agent's skills folder).

name: accessibility
description: WCAG 2.2 レベル AA 標準を用いてインクルーシブなデジタルプロダクトを設計・実装・監査します。Web 用のセマンティック ARIA および Web・ネイティブプラットフォーム（iOS/Android）のアクセシビリティトレイトを生成するために使用します。
origin: ECC

アクセシビリティ（WCAG 2.2）

このスキルは、スクリーンリーダー、スイッチコントロール、キーボードナビゲーションを使用するユーザーを含む、すべてのユーザーにとってデジタルインターフェースが知覚可能・操作可能・理解可能・堅牢（POUR）であることを保証します。WCAG 2.2 達成基準の技術的な実装に焦点を当てています。

使用タイミング

Web、iOS、Android 向け UI コンポーネント仕様の定義。
アクセシビリティの障壁やコンプライアンスのギャップについて既存コードを監査する。
Target Size（最小）や Focus Appearance など新しい WCAG 2.2 基準を実装する。
高水準な設計要件を技術属性（ARIA ロール、トレイト、ヒント）にマッピングする。

コアコンセプト

POUR 原則: WCAG の基盤（知覚可能・操作可能・理解可能・堅牢）。
セマンティックマッピング: 汎用コンテナよりネイティブ要素を使用して組み込みのアクセシビリティを提供する。
アクセシビリティツリー: 支援技術が実際に「読み取る」UI の表現。
フォーカス管理: キーボード・スクリーンリーダーカーソルの順序と可視性を制御する。
ラベリングとヒント: aria-label、accessibilityLabel、contentDescription を通じてコンテキストを提供する。

仕組み

ステップ 1: コンポーネントロールの特定

機能的な目的を決定します（例：これはボタンか、リンクか、タブか）。カスタムロールに頼る前に、利用可能な最もセマンティックなネイティブ要素を使用します。

ステップ 2: 知覚可能属性の定義

テキストのコントラストが 4.5:1（通常）または 3:1（大きいテキスト・UI）を満たすことを確認。
非テキストコンテンツ（画像、アイコン）にテキスト代替を追加。
レスポンシブリフロー（機能を損なわずに最大 400% ズーム）を実装。

ステップ 3: 操作可能なコントロールの実装

最小 24x24 CSS ピクセルのターゲットサイズを確保（WCAG 2.2 SC 2.5.8）。
すべてのインタラクティブ要素がキーボードで到達可能で、可視のフォーカスインジケーターを持つことを確認（SC 2.4.11）。
ドラッグ操作の単一ポインター代替手段を提供。

ステップ 4: 理解可能なロジックの確保

一貫したナビゲーションパターンを使用。
修正のための説明的なエラーメッセージと提案を提供（SC 3.3.3）。
同じデータを二度求めないよう「冗長入力防止」（SC 3.3.7）を実装。

ステップ 5: 堅牢な互換性の検証

正しい Name, Role, Value パターンを使用。
動的なステータス更新のために aria-live またはライブリージョンを実装。

アクセシビリティアーキテクチャ図

mermaid

flowchart TD
  UI["UI コンポーネント"] --> Platform{プラットフォーム?}
  Platform -->|Web| ARIA["WAI-ARIA + HTML5"]
  Platform -->|iOS| SwiftUI["アクセシビリティトレイト + ラベル"]
  Platform -->|Android| Compose["セマンティクス + コンテンツ説明"]

  ARIA --> AT["支援技術（スクリーンリーダー、スイッチ）"]
  SwiftUI --> AT
  Compose --> AT

クロスプラットフォームマッピング

機能	Web (HTML/ARIA)	iOS (SwiftUI)	Android (Compose)
プライマリラベル	`aria-label` / `<label>`	`.accessibilityLabel()`	`contentDescription`
セカンダリヒント	`aria-describedby`	`.accessibilityHint()`	`Modifier.semantics { stateDescription = ... }`
アクションロール	`role="button"`	`.accessibilityAddTraits(.isButton)`	`Modifier.semantics { role = Role.Button }`
ライブ更新	`aria-live="polite"`	`.accessibilityLiveRegion(.polite)`	`Modifier.semantics { liveRegion = LiveRegionMode.Polite }`

例

Web: アクセシブルな検索

html

<form role="search">
  <label for="search-input" class="sr-only">Search products</label>
  <input type="search" id="search-input" placeholder="Search..." />
  <button type="submit" aria-label="Submit Search">
    <svg aria-hidden="true">...</svg>
  </button>
</form>

iOS: アクセシブルなアクションボタン

swift

Button(action: deleteItem) {
    Image(systemName: "trash")
}
.accessibilityLabel("Delete item")
.accessibilityHint("Permanently removes this item from your list")
.accessibilityAddTraits(.isButton)

Android: アクセシブルなトグル

kotlin

Switch(
    checked = isEnabled,
    onCheckedChange = { onToggle() },
    modifier = Modifier.semantics {
        contentDescription = "Enable notifications"
    }
)

避けるべきアンチパターン

Div ボタン: ロールとキーボードサポートを追加せずに <div> や <span> をクリックイベントに使用する。
色のみの意味: エラーやステータスを色の変化_のみ_で示す（例：ボーダーを赤にする）。
モーダルフォーカスの未封じ込め: フォーカスをトラップしないモーダルで、キーボードユーザーがモーダル開放中に背景コンテンツをナビゲートできてしまう。フォーカスは封じ込め_かつ_Escape キーまたは明示的な閉じるボタンで脱出可能でなければならない（WCAG SC 2.1.2）。
冗長な代替テキスト: alt テキストに「Image of...」や「Picture of...」を使用する（スクリーンリーダーはすでに「画像」というロールをアナウンスする）。

ベストプラクティスチェックリスト

インタラクティブ要素が 24x24px（Web）または 44x44pt（ネイティブ）のターゲットサイズを満たしている。
フォーカスインジケーターが明確に見え、高コントラストである。
モーダルは開いている間フォーカスを封じ込め、閉じる際にクリーンに解放する（Escape キーまたは閉じるボタン）。
ドロップダウンとメニューは閉じる際にトリガー要素にフォーカスを戻す。
フォームはテキストベースのエラー提案を提供する。
アイコンのみのボタンには説明的なテキストラベルがある。
テキストが拡大縮小されるとコンテンツが適切にリフローする。

参考資料

Files

Just SKILL.md in docs/ja-JP/skills/accessibility of affaan-m/ECC.

Open the folder on GitHubat commit ef648e0

Compare with similar skills

Accessibility next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Accessibility compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Accessibility this skillaffaan-m/ECC	276k	—	~1.2k	Automated safety check: Pass	MIT	4 days ago
AccessibilityGetStream/stream-chat-react-native	1.2k	—	~6.5k	Automated safety check: Pass	Custom licence	yesterday
AccessibilityVeryGoodOpenSource/vgv-ai-flutter-plugin	170	—	~4.2k	Automated safety check: Pass	MIT	3 days ago
Maui Accessibilitydavidortinau/maui-skills	175	—	~974	Automated safety check: Pass	MIT	3 mo ago
Test Componentgluestack/gluestack-ui	5.3k	—	~3.2k	Automated safety check: Pass	None	1 mo ago
Penpot Uiux Designgithub/awesome-copilot	40k	1 repos	~3k	Automated safety check: Pass	MIT	today

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Questions about Accessibility

What does Accessibility do?

WCAG 2.2 レベル AA 標準を用いてインクルーシブなデジタルプロダクトを設計・実装・監査します。Web 用のセマンティック ARIA および Web・ネイティブプラットフォーム（iOS/Android）のアクセシビリティトレイトを生成するために使用します。. Accessibility is an agent skill from affaan-m/ECC.

When should I use Accessibility?

Accessibility fits situations like: tasks that involve Accessibility.

How do I install Accessibility in Claude Code?

Run `npx skills add affaan-m/ECC --skill accessibility -a claude-code`. Or copy the skill folder (docs/ja-JP/skills/accessibility in affaan-m/ECC) into .claude/skills/accessibility in your project. Claude Code loads it when a task matches its description.

How do I install Accessibility in Codex?

Run `npx skills add affaan-m/ECC --skill accessibility -a codex`. Or copy the skill folder (docs/ja-JP/skills/accessibility in affaan-m/ECC) into .agents/skills/accessibility in your project. Codex loads it when a task matches its description.

Can I use Accessibility in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add affaan-m/ECC --skill accessibility -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/accessibility, .gemini/skills/accessibility, .github/skills/accessibility and .opencode/skills/accessibility in your project.

What does Accessibility need to run?

SKILL.md names no scripts, command-line tools or credentials: Accessibility is instructions for the agent only.

Does Accessibility access the network?

SKILL.md names 3 domains. As links in the text: w3.org, developer.apple.com and developer.android.com. This is read from the text; nothing was executed.

Is Accessibility safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Accessibility use?

Accessibility is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Accessibility use?

About 1.2k tokens (SKILL.md is roughly 4.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Accessibility?

Skills that share tags, products or a category with Accessibility: Accessibility (GetStream/stream-chat-react-native, 1.2k stars), Accessibility (VeryGoodOpenSource/vgv-ai-flutter-plugin, 170 stars), Maui Accessibility (davidortinau/maui-skills, 175 stars) and Test Component (gluestack/gluestack-ui, 5.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Accessibility?

affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 275,546 GitHub stars. The repository holds 673 skills in this directory. The repository was last updated on October 5, 2026.

Source: affaan-m/ECC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Accessibility

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

アクセシビリティ（WCAG 2.2）

使用タイミング

コアコンセプト

仕組み

ステップ 1: コンポーネントロールの特定

ステップ 2: 知覚可能属性の定義

ステップ 3: 操作可能なコントロールの実装

ステップ 4: 理解可能なロジックの確保

ステップ 5: 堅牢な互換性の検証

アクセシビリティアーキテクチャ図

クロスプラットフォームマッピング

例

Web: アクセシブルな検索

iOS: アクセシブルなアクションボタン

Android: アクセシブルなトグル

避けるべきアンチパターン

ベストプラクティスチェックリスト

参考資料

関連スキル

Files

Compare with similar skills

Similar skills

More from affaan-m/ECC

Related

Questions about Accessibility