1{2 "task_id": "F6-conf-02",3 "sample_start": "2010-01-04",4 "sample_end": "2019-12-31",5 "n_treated": 0,6 "baseline_metric": -0.04285142170604726,7 "model_metric": null,8 "effect_estimate": null,9 "effect_ci_low": null,10 "effect_ci_high": null,11 "n_input_rows": {12 "gc5y_daily.csv": 249813 },14 "n_analysed": null,15 "random_seed": null,16 "feasibility": "infeasible",17 "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.",18 "conclusion": "premise_invalid",19 "data_issues": [20 {21 "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)",22 "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"23 }24 ]25}