{
  "task_id": "F6-conf-02",
  "sample_start": "2010-01-04",
  "sample_end": "2019-12-31",
  "n_treated": 0,
  "baseline_metric": -0.04285142170604726,
  "model_metric": null,
  "effect_estimate": null,
  "effect_ci_low": null,
  "effect_ci_high": null,
  "conclusion": "premise_invalid",
  "feasibility": "infeasible",
  "feasibility_reason": "The file covers 2010-01-04 to 2019-12-31 and contains 0 rows with post_cut = 1, so neither the post-cut mean change nor the 120-day pre-window (anchored on the first flagged day) can be computed.",
  "data_issues": [
    {
      "issue": "no rows with post_cut = 1: the file ends 2019-12-31, before the 2020-03-04 cut (README: retrieved with end_date=2019-12-31)",
      "handling": "treated window empty and pre-window undefined; estimand declared not computable (premise_invalid); no proxy window or redefined treatment used"
    }
  ],
  "n_input_rows": {
    "gc5y_daily.csv": 2498
  },
  "n_analysed": null,
  "random_seed": null
}