{
  "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,
  "n_input_rows": {
    "gc5y_daily.csv": 2498
  },
  "n_analysed": null,
  "random_seed": null,
  "feasibility": "infeasible",
  "feasibility_reason": "The file contains no post-cut (post_cut = 1) trading days. Its sample ends on 2019-12-31, so the post-cut mean change and the effect estimand cannot be computed.",
  "conclusion": "premise_invalid",
  "data_issues": [
    {
      "issue": "no rows with post_cut = 1: the file covers 2010-01-04 to 2019-12-31, which ends before the 2020-03-04 cut (README retrieval end_date=2019-12-31)",
      "handling": "estimand cannot be computed; effect, CI, model_metric and n_analysed set to null; no proxy event or substitute window used; conclusion premise_invalid"
    }
  ]
}