{
  "mcpServers": {
    "mailbox": {
      "command": "node",
      "args": [
        "/Users/gbpark/agent-pipeline/engine/build/mcp/mailbox-stdio-bridge.js"
      ],
      "env": {
        "MAILBOX_URL": "http://127.0.0.1:58370",
        "MAILBOX_AGENT": "backend"
      }
    }
  }
}