Koschei for VS Code

io.github.bugsbuny243/koschei

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

client:VS Code transport:stdio runtime:pypi

Install Koschei in VS Code

.vscode/mcp.json

{
  "servers": {
    "koschei": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "koschei-lang"
      ]
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs