{
 "a2a": "POST JSON-RPC 2.0 here, method SendMessage (A2A 1.0) or message/send (A2A 0.3): {\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"SendMessage\",\"params\":{\"message\":{\"role\":\"ROLE_USER\",\"messageId\":\"<uuid>\",\"parts\":[{\"text\":\"Where are you located?\"}]}}}",
 "agent_card": "/.well-known/agent-card.json"
}