MCP Code Execution Mode

Skill by ara.so — MCP Skills collection.

What This Does

This MCP server solves the "token bloat" problem when connecting LLMs to multiple MCP servers. Instead of loading 30,000+ tokens of tool schemas into every prompt, it exposes a single run_python tool that executes Python code in rootless containers. The LLM discovers and calls other MCP tools programmatically, reducing context overhead by 95%+.

Key benefits:

• Constant ~200 token overhead regardless of server count
• Discovery-first: Query schemas only when needed
• Universal proxying: Works with any stdio MCP server
• Production security: Rootless containers, no network, read-only filesystem
• Persistent sessions: Variables and MCP clients survive across calls

Installation

Prerequisites