Copy-forward is text from an earlier note carried into a new one, so an adverse event can read the same visit after visit even when it has changed. After grading, Burna AI reads the patient's grading history and flags three patterns for review: a grade that stays identical across visits, evidence text repeated word for word, and timing that does not fit the course of the event. Each flag comes with a recommended action. The clinician decides whether the event is truly unchanged. The check matters because a grade carried forward unexamined becomes a finding at a monitoring visit or an inspection.