A2A agent card

              DOMAIN=https://your-domain.example
for p in /.well-known/agent-card.json /.well-known/agent.json; do printf '%s -> ' "$p"; curl -sS "$DOMAIN$p" | jq -c '{name,version,interfaces:[.supportedInterfaces[]? | {url,protocolBinding,protocolVersion}],skills:(.skills|length)}' 2>/dev/null || echo "missing or not JSON"; done
            

              {
  "name": "Example Support Agent",
  "description": "Answers product and billing questions for partner agents.",
  "version": "1.0.0",
  "supportedInterfaces": [
    { "url": "https://your-domain.example/a2a/v1", "protocolBinding": "JSONRPC", "protocolVersion": "1.0" }
  ],
  "provider": { "organization": "Example Inc.", "url": "https://your-domain.example" },
  "capabilities": { "streaming": true, "pushNotifications": false },
  "defaultInputModes": ["text/plain", "application/json"],
  "defaultOutputModes": ["text/plain", "application/json"],
  "skills": [
    {
      "id": "billing-question",
      "name": "Billing question",
      "description": "Answers invoice and subscription questions for one account.",
      "tags": ["billing", "support"],
      "examples": ["Why was my last invoice higher than usual?"]
    }
  ]
}