A comprehensive reference for Apple's TextKit 2 framework that covers everything from the MVC architecture to Writing Tools integration and SwiftUI AttributedString handling through iOS 26. This is the kind of resource you keep open in a tab when migrating from TextKit 1 or implementing complex text editing features. It breaks down the model layer components like NSTextContentManager and NSTextContentStorage with enough detail to understand how elements are generated and tracked. Given the framework's reputation for being poorly documented by Apple, having a consolidated reference that includes modern SwiftUI patterns is genuinely useful. Worth installing if you're doing any serious text rendering work on iOS.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-textkit-ref