iTermセッションへのアクセスを提供するモデルコンテキストプロトコルサーバーです。

特徴

効率的なトークン使用: iterm-mcpはモデルが関心のある出力のみを検査する能力を提供します。モデルは通常、長時間実行されるコマンドでも出力の最後の数行のみを見たいとします。

自然な統合: モデルとiTermを共有します。画面上の内容について質問したり、タスクをモデルに任せて各ステップを観察したりできます。

完全なターミナル制御およびREPLサポート: モデルはREPLを起動・操作でき、ctrl-c、ctrl-zなどの制御文字を送信できます。

依存関係を抑える: iterm-mcpは依存関係を最小限に抑え、npxで実行可能です。Claude Desktopや他のMCPクライアントに簡単に追加できるよう設計されています。ただ動作するはずです。

安全上の考慮事項

• ユーザーはツールを安全に使用する責任があります。
• 組み込みの制限なし:iterm-mcpは実行されるコマンドの安全性を評価しようとしません。
• モデルは予期せぬ挙動を取ることがあります。ユーザーは活動を監視し、適切な時に中止することが期待されます。

iterm-mcp

A Model Context Protocol server that provides access to your iTerm session.

Features

Efficient Token Use: iterm-mcp gives the model the ability to inspect only the output that the model is interested in. The model typically only wants to see the last few lines of output even for long running commands.

Natural Integration: You share iTerm with the model. You can ask questions about what’s on the screen, or delegate a task to the model and watch as it performs each step.

Full Terminal Control and REPL support: The model can start and interact with REPL’s as well as send control characters like ctrl-c, ctrl-z, etc.

Easy on the Dependencies: iterm-mcp is built with minimal dependencies and is runnable via npx. It’s designed to be easy to add to Claude Desktop and other MCP clients. It should just work.

Safety Considerations

• The user is responsible for using the tool safely.
• No built-in restrictions: iterm-mcp makes no attempt to evaluate the safety of commands that are executed.
• Models can behave in unexpected ways. The user is expected to monitor activity and abort when appropriate.
• For multi-step tasks, you may need to interrupt the model if it goes off track. Start with smaller, focused tasks until you’re familiar with how the model behaves.

Tools

• write_to_terminal - Writes to the active iTerm terminal, often used to run a command. Returns the number of lines of output produced by the command.
• read_terminal_output - Reads the requested number of lines from the active iTerm terminal.
• send_control_character - Sends a control character to the active iTerm terminal.

Requirements

• iTerm2 must be running
• Node version 18 or greater

Installation

To use with Claude Desktop, add the server config:

On macOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "iterm-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "iterm-mcp"
      ]
    }
  }
}

Installing via Smithery

To install iTerm for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install iterm-mcp --client claude

Development

Install dependencies:

yarn install

Build the server:

yarn run build

For development with auto-rebuild:

yarn run watch

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:

yarn run inspector
yarn debug 

The Inspector will provide a URL to access debugging tools in your browser.