Validates date/time fields in incident corpora, event logs, or any temporal dataset. Catches future-dated records, max-year-fallback bugs, and event-vs-disclosure-date confusions. Use whenever the user is ingesting a dataset with year/date fields, especially incident registries, vulnerability disclosures, or news-derived corpora where the source text may contain spurious future-year mentions (for example, 'the 2027 election' appearing in a 2024 article). Recommends reject-future, min-year-fallback, and event-vs-disclosure-date separation as the three invariants.