Artificial intelligence agent protocol compliance evaluation checks more than a successful final response. It verifies that requests, state transitions, error handling and authorization behavior conform to the protocol contract at each relevant step.
These evaluations are important when independently operated agents and merchants must interoperate. A version change or silent assumption can break a transaction, so compliance suites should include valid flows, malformed input, revoked authority, timeouts and incompatible versions.
It can catch invalid messages, illegal state transitions, missing authorization, incompatible versions and error paths that would otherwise fail silently.
Is a successful checkout enough to prove protocol compliance?
No. One successful path does not prove that the agent handles boundaries, failures, revocation and evolving protocol rules correctly.
