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Koschei

io.github.bugsbuny243/koschei ยท v0.14.0

Run agent-written code under a capability policy: see what a program can touch before it runs.

Connect Runs on your machine

Terminal
claude mcp add koschei -- uvx koschei-lang==0.14.0
claude_desktop_config.json
{
  "mcpServers": {
    "koschei": {
      "command": "uvx",
      "args": [
        "koschei-lang==0.14.0"
      ]
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "koschei": {
      "command": "uvx",
      "args": [
        "koschei-lang==0.14.0"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "koschei": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "koschei-lang==0.14.0"
      ]
    }
  }
}

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Details

Package[email protected] (PYPI, stdio)
First published13 Nov 2026
Last updated13 Nov 2026
Registry nameio.github.bugsbuny243/koschei

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