{
  "before": {
    "turn_reply": "OK",
    "skill": "/fork-probe",
    "transcript_assistant_messages": 1,
    "transcript_models": [
      "Model B"
    ],
    "subagent_model": null,
    "subagent_selection": "Model A",
    "effort": []
  },
  "after": {
    "turn_reply": "OK",
    "skill": "/fork-probe",
    "transcript_assistant_messages": 1,
    "transcript_models": [
      "Model B"
    ],
    "subagent_model": "Model B",
    "subagent_selection": "Model B",
    "effort": []
  }
}