{
  "service": "nodcheck",
  "protocol": "A2A v1.0",
  "transport": "JSON-RPC 2.0 over POST",
  "method": "message/send",
  "agent_card": "https://nodcheck.com/.well-known/agent-card.json",
  "note": "This endpoint speaks JSON-RPC over POST. A GET returns this pointer for discovery; the machine-readable capability statement is the agent card."
}