curl https://agent.example.com/v1/agents/sessions/sess_01J5X8/subagents/sub_01D/turns \
  -H "Authorization: Bearer <api-key>"

{
  "object": "list",
  "data": [
    {
      "id": "turn_02C",
      "session_id": "sess_01J5X8",
      "subagent_id": "sub_01D",
      "status": "completed",
      "created_at": "2024-06-01T12:36:00Z"
    }
  ]
}