Data & privacy
Retention, forget & purge
Forgetting is a two-stage act: hidden immediately, gone permanently after thirty days.
Forget a fact
forget_fact — or the UI equivalent — hides it everywhere at once: retrieval, agents, search. It is retained in the soft-deleted state for thirty days so an accidental forget is recoverable, then purged by the nightly job.
Superseded is not deleted
A superseded fact stays readable in history on purpose. If you need it gone rather than replaced, forget it explicitly.