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mcp/harbor
Claude Desktop

Warrant for Claude Desktop

io.github.s0fractal/warrant

Record an agent's decisions with reasons anyone can re-execute offline — verify recomputes them.

client:Claude Desktop transport:stdio runtime:pypi

Install Warrant in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "warrant": {
      "command": "uvx",
      "args": [
        "warrant-verify"
      ],
      "env": {
        "WARRANT_STORE": "<WARRANT_STORE>",
        "WARRANT_KEY": "<WARRANT_KEY>",
        "WARRANT_ACTOR": "<WARRANT_ACTOR>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

Warrant in other clients

Warrant MCP server