06·Audit trail and observability for agent actions: what to log and how

Introduction

AI agents operating autonomously must be observable: every action should be recorded so it is possible to reconstruct what the agent did, why, and with what outcome. This lesson covers the audit trail architecture for agent systems: which events to log, how to structure logs, how to implement observability (traces, spans, metrics), how to meet compliance requirements (SOC2, GDPR, HIPAA), and how to effectively detect anomalies through monitoring.