ios-simulator-skill 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

xcodebuild wrapper with single-line build summaries — saves huge amounts of context
Accessibility-first simulator navigation — finds elements by label, not pixel position
22 purpose-built scripts for build/test/run/simulate workflows
Auto-compressed screenshots so image tokens stay manageable
Real-time log tailing with severity filtering

ライブデモ

実際の動作

ios-simulator-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": {
    "ios-simulator-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/conorluddy/ios-simulator-skill",
        "~/.claude/skills/ios-simulator-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": {
    "ios-simulator-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/conorluddy/ios-simulator-skill",
        "~/.claude/skills/ios-simulator-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": {
    "ios-simulator-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/conorluddy/ios-simulator-skill",
        "~/.claude/skills/ios-simulator-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": {
    "ios-simulator-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/conorluddy/ios-simulator-skill",
        "~/.claude/skills/ios-simulator-skill"
      ],
      "_inferred": true
    }
  }
}

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

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "ios-simulator-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/conorluddy/ios-simulator-skill",
        "~/.claude/skills/ios-simulator-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": {
    "ios-simulator-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/conorluddy/ios-simulator-skill",
          "~/.claude/skills/ios-simulator-skill"
        ]
      }
    }
  }
}

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

claude mcp add ios-simulator-skill -- git clone https://github.com/conorluddy/ios-simulator-skill ~/.claude/skills/ios-simulator-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： ios-simulator-skill

Build, run, and screenshot the current flow

👤 iOS devs using Claude Code to iterate ⏱ ~5 min beginner

使うタイミング： You changed a view and want to see it live without leaving the chat.

前提条件

Xcode + simulator installed — Standard macOS iOS dev setup

フロー

Ask Claude to build and run

Use ios-simulator-skill. Build MyApp scheme for iPhone 16, launch, navigate to Settings, screenshot.✓ コピーしました

→ Compact build summary, then the screenshot
Iterate

I tweaked the padding — rebuild and re-screenshot.✓ コピーしました

→ Fast turn with minimal token overhead

結果： Tight build-iterate-view loop in Claude Code.

注意点

Scheme name typo causes unclear error — Skill returns a compact list of available schemes on mismatch

組み合わせ： filesystem

Drive a scripted UI flow for smoke testing

👤 iOS devs and QA ⏱ ~15 min intermediate

使うタイミング： You want to verify a critical flow without writing full XCUITest scaffolding.

フロー

Describe the flow

Launch the app, tap 'Sign in', enter creds, tap the first row in the list, screenshot.✓ コピーしました

→ Claude uses accessibility labels to drive each step
Check WCAG compliance

Now run the accessibility audit on the current screen.✓ コピーしました

→ WCAG findings with fix suggestions

結果： A working smoke flow plus an a11y pass.

注意点

Flow breaks when a label changes — Labels are more stable than coordinates, but still review after big UI refactors

Tail logs while reproducing a bug

👤 iOS devs chasing a flaky issue ⏱ ~10 min intermediate

使うタイミング： A bug only repros in the simulator and you want the relevant logs.

フロー

Reproduce with filtered logs

Launch the app, tap through the crashing flow, tail logs filtered to error+warning.✓ コピーしました

→ Claude returns a trimmed log bundle and highlights the likely cause

結果： A targeted log excerpt and a hypothesis for the bug.

注意点

Logs too noisy if severity filter not set — Default to error+warning; raise to info only when debugging

組み合わせ

他のMCPと組み合わせて10倍の力を

ios-simulator-skill + filesystem

Skill runs the build; filesystem reads/writes the sources

Edit SettingsView.swift, then build and screenshot.✓ コピーしました

ios-simulator-skill + github

Reproduce an issue from a GitHub bug report in the simulator

Read issue #42, reproduce the steps in the simulator, attach screenshot to a comment.✓ 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
xcodebuild wrapper	scheme, destination	Any build request
Simulator driver (accessibility APIs)	element label/role + action	UI automation in the simulator
Screenshot capture	none (current screen)	Visual verification
Log tailing	severity filter, duration	Debugging runtime issues
Device lifecycle	boot/shutdown/create/reset	Fresh simulator state needed
Accessibility audit	current screen	A11y review

コストと制限

運用コスト

APIクォータ: None
呼び出しあたりのトークン: Very low — compact build summaries + compressed screenshots are the main design goal
金額: Free — skill is local
ヒント: Keep screenshots at default compression; full-res screens eat context fast.

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 credentials in the skill. App-side secrets stay in your build config.

データ送信先： None — everything runs on local simulators

Simulators have access to your keychain if you've configured it — be careful with credentials during automation.

トラブルシューティング

よくあるエラーと対処法

'No such scheme'

Skill lists available schemes on mismatch; pick the exact name.

確認： xcodebuild -list -project MyApp.xcodeproj

Accessibility label not found

Add accessibilityIdentifier to the SwiftUI view — it's more stable than the visible label.

Simulator stuck booting

Use the device-lifecycle reset command; then re-boot.

確認： xcrun simctl list

代替案

ios-simulator-skill 他との比較

代替案	代わりに使う場面	トレードオフ
Direct xcodebuild + simctl	You don't mind the token bloat from raw output	No abstraction; verbose
XcodeBuildMCP	You prefer an MCP server with structured tools	MCP route; this skill is local scripts

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