{
  "base": {
    "items": [
      {
        "type": "assistant_message",
        "status": "completed",
        "count": 3
      },
      {
        "type": "checkpoint",
        "status": "completed",
        "count": 3
      },
      {
        "type": "command_execution",
        "status": "completed",
        "count": 1
      },
      {
        "type": "error",
        "status": "failed",
        "count": 1
      },
      {
        "type": "user_message",
        "status": "completed",
        "count": 4
      }
    ]
  },
  "head": {
    "items": [
      {
        "type": "assistant_message",
        "status": "completed",
        "count": 5
      },
      {
        "type": "checkpoint",
        "status": "completed",
        "count": 5
      },
      {
        "type": "command_execution",
        "status": "completed",
        "count": 1
      },
      {
        "type": "compaction",
        "status": "completed",
        "count": 1
      },
      {
        "type": "user_message",
        "status": "completed",
        "count": 5
      }
    ]
  },
  "note": "Read-only inspection of isolated synthetic app state; recordings are the visual evidence. AI-assisted; verified with the tests and tools listed above."
}