Connects Claude to Linggen's local daemon at 127.0.0.1:9898 for privacy-first code search using RAG. Everything runs on your machine with data stored in ~/.linggen/, so nothing leaves your system. Linggen itself is a local AI app engine that bundles skills into native macOS apps, all sharing one daemon and storage directory. The MCP server lets you query your indexed code directly from Claude without sending it to external services. Reach for this when you want semantic code search across your projects but need to keep source code strictly local, or when you're already running Linggen apps like Sys Doctor and want Claude to tap into the same indexing layer.