[
 {"id":"C1","text":"The file contains no rows with post_cut = 1; it covers 2010-01-04 to 2019-12-31, ending before the 2020-03-04 cut.","results_keys":["n_treated","sample_start","sample_end"],"status":"supported","caveat":"Based on the file as provided; the README confirms retrieval end_date 2019-12-31."},
 {"id":"C2","text":"The estimand (post-cut minus pre-window mean one-day change) and its 95% interval cannot be computed; conclusion is premise_invalid and the task is infeasible.","results_keys":["effect_estimate","effect_ci_low","effect_ci_high","model_metric","conclusion","feasibility","feasibility_reason","n_analysed"],"status":"supported","caveat":"No proxy estimate was substituted."},
 {"id":"C3","text":"The descriptive baseline mean one-day change of the 5-year yield over the whole file is about -0.043 bp per day.","results_keys":["baseline_metric","n_input_rows"],"status":"supported","caveat":"Descriptive only; uninformative about the March-2020 cut; no interval attached."}
]