{"id":"month-zero-silent-wrong-answer","text":"`number_of_days` performs no input validation; passing month=0 silently returns 31 (December) via Python's negative list indexing rather than raising an error","truth_value":"IN","source":"entries/2026/06/06/number-of-days-in-a-month-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"month-zero-silent-wrong-answer","truth_value":"IN","reason":"premise"}]}}