{
  "method": "sessionUpdate",
  "args": [
    {
      "sessionId": "test-session-id",
      "update": {
        "sessionUpdate": "agent_message_chunk",
        "messageId": "commentary-message",
        "content": {
          "type": "text",
          "text": "Checking the relevant event mapping."
        },
        "_meta": {
          "codex": {
            "phase": "commentary"
          }
        }
      }
    }
  ]
}
{
  "method": "sessionUpdate",
  "args": [
    {
      "sessionId": "test-session-id",
      "update": {
        "sessionUpdate": "agent_message_chunk",
        "messageId": "final-message",
        "content": {
          "type": "text",
          "text": "Yes, here is the answer."
        },
        "_meta": {
          "codex": {
            "phase": "final_answer"
          }
        }
      }
    }
  ]
}