{
  "method": "sessionUpdate",
  "args": [
    {
      "sessionId": "test-session-id",
      "update": {
        "sessionUpdate": "tool_call",
        "toolCallId": "command-list-path",
        "status": "in_progress",
        "kind": "read",
        "title": "List files in '/test/project'"
      }
    }
  ]
}