Audit log
Also known as: audit trail · decision log
An audit log is a durable record of what an AI system did: the prompts, the tool calls, the decisions, the outputs.
- Who/what triggered it, when.
- Which tools were called, with what args.
- What was decided and why.
Why it's non-negotiable: when an agent does something, you'll want to reconstruct it. An audit log turns "it did what?" into "here's exactly what, when, and why."