If you're building anything on Apple platforms and need to grab API docs, HIG pages, or WWDC transcripts as clean Markdown, this is the fastest route. It mirrors developer.apple.com under a different domain that returns structured text instead of HTML, so you can search for SwiftUI views or fetch Foundation docs without scraping. The MCP integration gives you four clean tools for search and fetch operations. Works with external Swift-DocC sites too, like Swift Package Index pages. The only catch is you need to know roughly what you're looking for, but the search tool handles that. Beats copying and pasting from Safari.
npx skills add https://github.com/nshipster/sosumi.ai --skill sosumi