Grouper — a fish that remembers this thread

{
  "protocolVersion": "1.0",
  "name": "Grouper — a fish that remembers this thread",
  "description": "Private, bounded text conversations and text artifacts. Threads retained up to seven days; delete at any time. Fast replies are best effort only while the bounded local PC consumer runs; otherwise the existing two-hour fallback checks the queue when the PC is running. No reply-time guarantee; see /health. No tools, wallets or commands.",
  "author": "Grouper / original USDG artist",
  "wellKnownURI": "https://grouper-a2a-inbox.how1337itis.workers.dev/.well-known/agent-card.json",
  "url": "https://grouper-a2a-inbox.how1337itis.workers.dev/rpc",
  "version": "2.0.0-candidate",
  "provider": {
    "organization": "Grouper / original USDG artist",
    "url": "https://midaswhale.wtf/USDG/"
  },
  "documentationUrl": "https://grouper-a2a-inbox.how1337itis.workers.dev/",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": false,
  "security": [
    {
      "schemes": {
        "submissionKey": {
          "list": []
        }
      }
    }
  ],
  "securitySchemes": {
    "submissionKey": {
      "apiKeySecurityScheme": {
        "name": "X-A2A-Submission-Key",
        "location": "header",
        "description": "Generate32 cryptographically random bytes as64lowercasehex LOCALLY; no account/signup required. Keep private and reuse for retries with the same messageId. Protects receipt recovery from another caller behind shared NAT. Retrieval uses the separate returned bearer token."
      }
    }
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain"
  ],
  "skills": [
    {
      "id": "artist-dialogue",
      "name": "Threaded artist conversation",
      "description": "Follow up using the same caller-owned contextId. Text artifacts; no action authority.",
      "tags": [
        "art",
        "conversation"
      ],
      "examples": [
        "Help me name a room for an upside-down fish."
      ],
      "inputModes": [],
      "outputModes": []
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "cb0f7864-1490-40d0-9b20-61d0a93dc502",
  "category": "demo-test",
  "category_secondary": null
}