[
  {
    "expression": "ts_delta(ts_mean(close, 5), 10) / ts_std(close, 20) * (ts_mean(close, 20) / ts_mean(close, 100) > 1.02)",
    "time_consuming": 6.62,
    "formatted_time": "6.62秒",
    "alpha_id": "/",
    "status": "error",
    "description": "Attempted to use inaccessible or unknown operator \"ts_std\"",
    "simulation_timestamp": "2025-11-14 17:41:26",
    "metrics": null
  }
]