Returns a page of recorded administrative acts, newest first, on exactly one axis. subject (<kind>:<uuid>, e.g. kb_resources:<uuid>) returns the acts performed on that subject, limited to the act families the caller may read about it: a system admin reads all of them except grant acts on someone else's personal context or a resource homed in one, a caller who may administer grants on the subject reads its grant acts, and an owner or maintainer of a team (kb_teams:<uuid>) reads that team's membership changes, the linking or detaching of its child teams, its lifecycle acts (created, deleted, restored, renamed, auto-join changed), and the public-within records that name it as the opened team or the anchor (opened, closed, lapsed, a change of effect, a change of its forbid) (on the gating team and temper-system, only a system admin does). actor returns the acts a profile performed: any caller may read their own, and only a system admin may read another's, without the grant acts that fall in someone else's personal space. A read the caller is not allowed is answered 404, not 403, so a refusal reveals nothing about the subject. epoch is when recording began; acts before it were not recorded. limit defaults to 50 and is capped at 200.