Sanity Library Reference Docs
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    DRIVER_KINDS: readonly ["person", "agent", "service", "engine"] = ...

    What KIND of actor drove an action, recorded on the actionFired history entry for the audit-trail "who did this?" glyph. Distinct from ActivityKind (the intended execution lane) — any driver can fire any kind. New entries stamp 'person'; 'agent'/'service'/'engine' remain as read vocabulary for stored entries.