{
  "ok": true,
  "transport": "A2A JSON-RPC (POST)",
  "methods": [
    "SendMessage",
    "message/send"
  ],
  "agent_card": "/.well-known/agent-card.json",
  "extensions": [
    "https://gate.horizonshield.dev/ext/conduct/v1"
  ],
  "input": "a URL or a publisher name as a text part; provenance and disclosure only"
}