What’s the safest way to purge stale agent conversation memory?

The safest way to purge stale AI agent conversation memory is to only remove non-replayable memory outside Catalyst’s durable execution checkpoints. Catalyst retains replayable workflow state to support reliable crash recovery, so offload non-critical conversation data to a dedicated vector or object store for long-term retention rather than deleting it directly. Avoid purging state tied to in-flight workflow checkpoints, as this breaks the platform’s core replay functionality for active workflows.