SwiftUI Agent Skill — インストール & ライブデモ

なぜ使うのか

主な機能

iOS 17+ Observation framework (no more ObservableObject in new code)
NavigationStack patterns with type-safe destinations
Common pitfalls list (TextField + State race conditions, sheet vs popover)
Accessibility annotations baked into examples
Test-friendly view structure

ライブデモ

実際の動作

swiftui-agent-skill.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": {
    "swiftui-agent-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/twostraws/SwiftUI-Agent-Skill",
        "~/.claude/skills/SwiftUI-Agent-Skill"
      ],
      "_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": {
    "swiftui-agent-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/twostraws/SwiftUI-Agent-Skill",
        "~/.claude/skills/SwiftUI-Agent-Skill"
      ],
      "_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": {
    "swiftui-agent-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/twostraws/SwiftUI-Agent-Skill",
        "~/.claude/skills/SwiftUI-Agent-Skill"
      ],
      "_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": {
    "swiftui-agent-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/twostraws/SwiftUI-Agent-Skill",
        "~/.claude/skills/SwiftUI-Agent-Skill"
      ],
      "_inferred": true
    }
  }
}

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

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "swiftui-agent-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/twostraws/SwiftUI-Agent-Skill",
        "~/.claude/skills/SwiftUI-Agent-Skill"
      ]
    }
  ]
}

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": {
    "swiftui-agent-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/twostraws/SwiftUI-Agent-Skill",
          "~/.claude/skills/SwiftUI-Agent-Skill"
        ]
      }
    }
  }
}

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

claude mcp add swiftui-agent-skill -- git clone https://github.com/twostraws/SwiftUI-Agent-Skill ~/.claude/skills/SwiftUI-Agent-Skill

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： SwiftUI Agent Skill

Build a settings screen the right way (iOS 17+)

👤 iOS devs ⏱ ~15 min intermediate

使うタイミング： You want a Settings screen that's actually idiomatic for iOS 17+.

前提条件

Server/skill installed and authenticated — See repo README

フロー

Plan

Using the SwiftUI skill, design a Settings view with sections: Account, Notifications, About. Use @Observable for the view model.✓ コピーしました

→ View hierarchy + ViewModel sketch
Code

Write the full file with toggles, NavigationLink to subpages, and a confirmation dialog for sign-out.✓ コピーしました

→ Compiles on Xcode 15+

結果： Idiomatic SwiftUI you don't have to rewrite next year.

注意点

Don't mix @StateObject with @Observable — Don't mix @StateObject with @Observable — the skill enforces one or the other; follow it.

コストと制限

運用コスト

APIクォータ: See provider docs for rate limits
呼び出しあたりのトークン: Varies by tool
金額: See repo README for pricing details
ヒント: Cache tool results and avoid repeated identical calls.

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： Use environment variables; never commit secrets

データ送信先： Tool calls go to the provider's API as documented

トラブルシューティング

よくあるエラーと対処法

view doesn't update on state change

Ensure the property is on an @Observable class, not a struct. The skill's checklist covers this.

確認： @Observable annotation present

preview crashes

@Observable views need a real instance in #Preview. The skill's examples show the pattern.

確認： Preview compiles

代替案

SwiftUI Agent Skill 他との比較

代替案	代わりに使う場面	トレードオフ
wholiver/swiftui-design-skill	You want design direction, not code patterns	Design-focused; twostraws is code-focused

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