{
  "agent": {
    "id": "abc123def456ghi789jklm",
    "created_at": "2025-10-14T12:00:00Z",
    "created_by": "01J000000000000000000000001",
    "updated_at": "2025-10-23T16:45:00Z",
    "updated_by": "01J000000000000000000000002",
    "customer_agent_id": "abc123def456ghi789jklm",
    "display_name": "Updated Agent Name",
    "model_type": "MODEL_TYPE_VOICE",
    "phone_number": "+1234567890",
    "endpoint": "https://api.example.com/agent",
    "prompt": "Updated instructions...",
    "metadata": {
      "updated": true
    },
    "workflows": {},
    "metric_ids": [],
    "test_set_ids": [],
    "knowledge_base_ids": [],
    "create_time": "2025-10-14T12:00:00Z",
    "update_time": "2025-10-23T16:45:00Z"
  }
}

{
  "error": {
    "code": "INVALID_ARGUMENT",
    "message": "Invalid request parameter",
    "details": [
      {
        "field": "page_size",
        "description": "page_size must be between 1 and 100"
      }
    ]
  }
}

{
  "error": {
    "code": "UNAUTHENTICATED",
    "message": "Authentication failed",
    "details": [
      {
        "field": "x-api-key",
        "description": "Invalid or missing API key"
      }
    ]
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "Agent not found",
    "details": [
      {
        "field": "agent_id",
        "description": "Agent not found or not accessible by your organization"
      }
    ]
  }
}

{
  "error": {
    "code": "INTERNAL",
    "message": "Internal server error",
    "details": [
      {
        "description": "An unexpected error occurred"
      }
    ]
  }
}