If you're building iOS widgets or extensions and need quick reference to Apple's APIs, this covers the full spectrum from iOS 14's original Home Screen widgets through iOS 26's Liquid Glass rendering and visionOS 2 mounting styles. It documents Interactive Widgets, Live Activities, Control Center widgets, and the underlying app extension architecture. The scope is genuinely comprehensive, which is helpful since Apple's widget ecosystem has fragmented across multiple iOS versions with very different capabilities. Best used when you need to verify what's available in a specific iOS version or understand the differences between widget types without digging through Apple's scattered documentation.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-extensions-widgets-ref