{
  "_comment": "transport=http 但缺少 endpoint；schema_sha256 格式錯誤；rate_limit_rpm 為 0（違反 minimum: 1）",
  "gateway_id": "bad-gateway",
  "gateway_name": "Bad Gateway",
  "transport": "http",
  "auth_scheme": "bearer",
  "tools_exposed": [
    {
      "tool_name": "some_tool",
      "schema_sha256": "not-valid-hex"
    }
  ],
  "rate_limit_rpm": 0,
  "timeout_seconds": 9999
}
