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Card snapshot

echo-agent.mattiapapaccioli.com · 2026-10-13 17:27:12 UTC · 74a6203ccce689a25f7a75eb8342e8a69a67eb6b664625f0405cb15b827c26c2

This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.

{
  "name": "Echo Agent",
  "description": "Echoes your messages back. Useful for testing A2A clients and plumbing.",
  "supportedInterfaces": [
    {
      "url": "https://echo-agent.mattiapapaccioli.com",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    },
    {
      "url": "https://echo-agent.mattiapapaccioli.com",
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "url": "https://mattiapapaccioli.com",
    "organization": "Mattia Papaccioli"
  },
  "version": "0.1.0",
  "capabilities": {
    "streaming": true
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain"
  ],
  "skills": [
    {
      "id": "echo",
      "name": "Echo",
      "description": "Replies with the text you send, as a single message.",
      "tags": [
        "test",
        "echo"
      ],
      "examples": [
        "hello world"
      ]
    },
    {
      "id": "stream_echo",
      "name": "Streaming echo",
      "description": "Prefix your message with \"stream:\" to get a task that streams the text back word by word as an artifact.",
      "tags": [
        "test",
        "streaming",
        "task"
      ],
      "examples": [
        "stream: the quick brown fox"
      ]
    }
  ]
}