A focused reference for Swift's modern concurrency primitives. You get the core docs for async/await, Task, TaskGroup, actors, AsyncSequence, and continuations all cached locally, which is exactly what you need when you're knee-deep in refactoring callback hell or debugging data races. The skill runs in fork mode with the Explore agent, so it stays out of your way until you need to look something up. Nice touch: it tells you to check other installed Apple skills before fetching from the web, which keeps context windows lean. If you're writing Swift server code or modernizing an iOS app to structured concurrency, this beats tabbing between browser windows.
npx skills add https://github.com/vabole/apple-skills --skill swift-concurrency