skills MCP — ユースケース, インストール & ライブデモ

なぜ使うのか

主な機能

Expo SDK-aware scaffolding
expo-router file-based navigation patterns
EAS Build + Submit config guidance
TypeScript + Zustand defaults
Avoids RN-CLI era advice

ライブデモ

実際の動作

skills-skill-7.replay ▶ 準備完了

0/0

インストール

クライアントを選択

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "skills-skill-7": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/zaferayan/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config を開く。保存後、アプリを再起動。

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "skills-skill-7": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/zaferayan/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Cursor は Claude Desktop と同じ mcpServers スキーマを使用。プロジェクト設定はグローバルより優先。

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "skills-skill-7": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/zaferayan/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Cline サイドバーの MCP Servers アイコンをクリックし、"Edit Configuration" を選択。

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "skills-skill-7": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/zaferayan/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop と同じ形式。Windsurf を再起動して反映。

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "skills-skill-7",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/zaferayan/skills",
        "~/.claude/skills/skills"
      ]
    }
  ]
}

Continue はマップではなくサーバーオブジェクトの配列を使用。

~/.config/zed/settings.json

{
  "context_servers": {
    "skills-skill-7": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/zaferayan/skills",
          "~/.claude/skills/skills"
        ]
      }
    }
  }
}

context_servers に追加。保存時に Zed がホットリロード。

claude mcp add skills-skill-7 -- git clone https://github.com/zaferayan/skills ~/.claude/skills/skills

ワンライナー。claude mcp list で確認、claude mcp remove で削除。

ユースケース

実用的な使い方： skills

Spin up a new Expo app with tabs and auth in one session

👤 Devs starting a new mobile app who want the boring parts done ⏱ ~45 min beginner

使うタイミング： Day zero of a new project — you want tabs, stack, and a sign-in flow without reading three blog posts.

前提条件

Node 20+, Xcode or Android Studio — Standard Expo requirements
Skill installed — git clone https://github.com/zaferayan/skills ~/.claude/skills/skills

フロー

Create the app

Use the Expo skill. Start a new app 'TaskFlow' with expo-router, TypeScript, and the tabs template. Include a login screen with email/password.✓ コピーしました

→ npx create-expo-app run, then file structure with app/(tabs)/ and app/(auth)/
Add state

Wire up Zustand for the auth store and persist to SecureStore.✓ コピーしました

→ stores/auth.ts with zustand + persist middleware using expo-secure-store
Test on device

Start the dev server and give me the QR code to scan.✓ コピーしました

→ npx expo start output

結果： A running app on your phone with tabs, auth, and persistence in under an hour.

注意点

Claude suggests react-native-cli patterns — Explicitly say 'Expo SDK, expo-router only' in prompts

組み合わせ： filesystem

Configure EAS Build for iOS and Android

👤 Teams ready to ship TestFlight / Play internal ⏱ ~30 min intermediate

使うタイミング： First time submitting to TestFlight/Play.

フロー

Generate eas.json

Use the Expo skill. Generate eas.json with preview (internal) and production profiles, correct bundle identifier patterns, and env var injection.✓ コピーしました

→ Valid eas.json with both profiles
Wire secrets

Add my Sentry DSN and API base URL as EAS secrets for preview and production separately.✓ コピーしました

→ eas secret:create commands listed
Trigger the build

Now trigger a preview build for iOS.✓ コピーしました

→ eas build --profile preview --platform ios command

結果： EAS builds running, secrets managed.

注意点

Committing app.json with secrets inline — Secrets go in EAS env, not app.json; let Claude use expo-constants to read them

Integrate a native module using Expo config plugins

👤 Devs adding functionality that requires native code (camera, biometrics, push) ⏱ ~20 min intermediate

使うタイミング： You need functionality beyond JS, but don't want to eject.

フロー

Identify the right package

Use the Expo skill. I need biometric auth. What's the right Expo SDK module and how do I configure it?✓ コピーしました

→ expo-local-authentication named with config plugin entries
Wire config plugin

Add the config plugin entries and required iOS usage strings.✓ コピーしました

→ app.json diff with plugins array and NSFaceIDUsageDescription

結果： Native module integrated via managed workflow.

注意点

Adding raw native code and breaking managed workflow — Prefer Expo SDK modules and config plugins; eject only if truly needed

組み合わせ

他のMCPと組み合わせて10倍の力を

skills-skill-7 + filesystem

Bulk-apply Expo idioms across an existing RN project

Migrate my RN-CLI app to Expo managed workflow; point at the source tree.✓ コピーしました

skills-skill-7 + git

Commit each step separately so EAS setup changes are auditable

Commit the EAS config changes as a distinct commit before adding secrets.✓ コピーしました

ツール

このMCPが提供する機能

ツール	入力	呼び出すタイミング
expo_scaffold	app name, template, features	Starting a new app
eas_config	profiles needed	Setting up builds
config_plugin_wire	native module name	Adding native features

コストと制限

運用コスト

APIクォータ: None built-in
呼び出しあたりのトークン: Moderate
金額: Expo is free; EAS Build has a free tier with paid scaling
ヒント: Use EAS local builds during dev; cloud builds only for preview/prod.

セキュリティ

権限、シークレット、影響範囲

認証情報の保管： No direct creds; EAS secrets are managed by Expo

データ送信先： None from skill itself

Never commit eas.json with inline secrets; use eas secret:create.
Treat expo-secure-store data as sensitive; it's encrypted but not invincible.

トラブルシューティング

よくあるエラーと対処法

Metro can't find module after install

Run npx expo install rather than npm install so SDK-compatible versions are picked

確認： npx expo-doctor

Build fails with 'unrecognized bundle identifier'

Bundle ID mismatch between app.json and Apple Developer portal; align them

Native module not found at runtime

Config plugin didn't run; rebuild with eas build or npx expo prebuild --clean

代替案

skills 他との比較

代替案	代わりに使う場面	トレードオフ
React Native CLI	You need maximum native control and don't mind managing Xcode/Gradle	Much more setup burden
Flutter	Cross-platform with Dart	Different language, different ecosystem

その他

リソース

📖 GitHub の公式 README を読む

🐙 オープンな issue を見る

🔍 400以上のMCPサーバーとSkillsを見る