xby-who-is: DeepSeek Harness WHOIS Query Plugin

xby-who-is is an MCP protocol-based online tool plugin designed to help DeepSeek Harness (DSH) agents resolve WHOIS protocol parsing challenges. The plugin supports queries for 1,260+ top-level domains and provides core features such as setting an API key, looking up domain details, and refreshing the server list. Users must first obtain a key from the official website and configure it in the conversation, after which they can use the `whois_lookup` command to retrieve authoritative registrar information. The plugin recommends periodically running `refresh_whois_servers` to keep the data up to date.