A2A 1.0

A2A verification.

An A2A client can discover Accord Trace, submit structured evidence and pass the resulting proof to another agent without manual onboarding.

Discovery

The current A2A 1.0 Agent Card is published at /.well-known/agent-card.json and declares the JSON-RPC interface at /a2a.

Agent handoff

Before transferring work, Agent A records the artifact or its hash. Agent B receives the proof ID and verification instructions, checks the proof, then continues its workflow based on its own policy.

Neutrality

Accord Trace reports cryptographic validity and hash equality. It does not decide whether the handoff, agreement or output should be accepted.