mcp-pyrunner

# MCP Code Mode 🐍⚡ **Universal Python code execution MCP server - one tool to rule them all.** Inspired by [Cloudflare's Code Mode](https://blog.cloudflare.com/code-mode/): LLMs are better at writing code than making tool calls because they've trained on millions of real repositories. ## Why Code Mode? **Traditional approach** (many tools): ``` User: "Get weather for Austin and save to file" LLM: [tool_call: get_weather(location="Austin")] → waits for response... LLM: [tool_call: write_file(path="weather.txt", content=...)] → waits for response... ``` **Code Mode approach** (one tool): ``` User: "Get weather for Austin and save to file" LLM: [run_python] import requests weather = requests.get("https://wttr.in/Austin?format=j1").json() temp = weather['current_condition'][0]['temp_F'] with open("weather.txt", "w") as f: f.write(f"Austin: {temp}°F") print(f"Saved! Temperature: {temp}°F") ``` ### Benefits | Traditional Tools | Code Mode | |------------------|-----------| | ❌ LLMs struggle with synthetic tool-call format | ✅ LLMs excel at writing real code | | ❌ Each tool call = round trip to LLM | ✅ Complex workflows in one execution | | ❌ Managing 20+ extensions | ✅ One universal tool | | ❌ Token waste passing data between calls | ✅ Efficient data flow in code | | ❌ Limited to pre-built capabilities | ✅ Anything Python can do | ## Works With Any MCP Client - ✅ **Goose** (Block's AI agent) - ✅ **Claude Desktop** - ✅ **Cursor** - ✅ **VS Code with Copilot** - ✅ **Any MCP-compatible agent** ## Features ### 🚀 Universal Execution Write Python to accomplish any task - HTTP requests, file operations, data processing, web scraping, image manipulation, and more. ### 📦 Auto-Install Dependencies Missing a package? Code Mode detects `ModuleNotFoundError`, installs the package, and retries automatically. ### 🌊 Streaming Output See results in real-time! `run_python_stream` shows output line-by-line as your code executes. Perfect for long-running task…