Can I replay what my agents did?

Yes, and this is the everyday payoff of the receipt machinery, not just the compliance one.

When an agent misbehaves, the question is always "what exactly happened, in what order, under whose authority?" Logs answer that approximately. The receipt trail answers it exactly: every state mutation, signed, in chain order, each one resolving to the acting passport, its trust tier, and the grants in force.

Replay means walking that trail: you see the verb sequence, the content hashes of what changed, and any signed refusals along the way. Because the trail verifies offline, you can also hand the same slice to a colleague, a customer, or an auditor and they can walk it themselves without access to your systems.

Debugging and audit stop being separate artefacts. There is one trail, and it is evidence.