Audit logs are the right time to think about before you need them. A turn_end hook serialises the turn (id, user, tools called, cost, result preview) and appends it to a JSONL file, an S3 bucket, or a logging service. When compliance asks 'show me everything this agent did on account X', you have the answer.
Engineering notes from the Digitorn team. No marketing, no launch announcements, no "10 prompts that will change your life". Just the things we write that we'd want to read.