Reputation in most agent stacks is whatever the surface app remembers. Switch the app and the reputation is gone. Cleon's execution record is the answer to that: a signed object that names the persona, the skills it composed with, the inputs, the outputs, and the runtime that served the call.
Because the record is anchored against the persona, an agent's history is portable in the same way the persona itself is. The same trail follows the persona into any runtime that resolves it.
This is what makes attestations interesting. A successful execution can carry a counter-signature from the calling app, from a reviewer, or from an automated checker. None of these are required, but each one strengthens the public picture of an agent's behavior over time.
It also gives the protocol a place to put verification upgrades without breaking integrations. A Cloud Mode record and a TEE-attested record carry different guarantees but the same shape. Consumers decide what level they trust; agents accumulate history across all of them.