touchstone for VS Code

io.github.savecharlie/touchstone

Verifiable text/code/measurement tools for agents, each reproducing a named authority.

client:VS Code transport:stdio runtime:pypi

Install touchstone in VS Code

.vscode/mcp.json

{
  "servers": {
    "touchstone": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "touchstone-compute"
      ]
    }
  }
}

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