{
  "jsonrpc": "2.0",
  "error": {
    "code": -32601,
    "message": "SHIGGA has no live A2A JSON-RPC methods. Use GET https://shigga.vip/.well-known/agent-card.json, https://shigga.vip/index.md, and https://shigga.vip/llms.txt."
  }
}