What problem does it solve? Building a whole macOS feature — a menu-bar app, a Settings window, an AppKit bridge — from memory leads to stale APIs and broken wiring. This Skill pulls canonical recipe templates plus real, compilable code examples from 1,857 shipping open-source macOS apps so features are grounded in how production apps actually implement them. ## Core Features & Use Cases - Recipe-Based Scaffolding: Twelve whole-feature recipes (menubar-app, settings-screen, master-detail, nsview-bridge, command-palette, and more) each providing a template skeleton, the APIs it composes, and ranked real examples. - Real Code Lookup: The swiftui-ctx CLI serves recipe templates, then opens the actual example source via swiftui-ctx file <id> --smart, with GitHub permalinks pinned to commit SHAs. - API Verification: After scaffolding, any individual API's current argument shape can be confirmed with swiftui-ctx lookup <api>. - Use Case: You need to build a menu-bar app with a Settings window. Run the menubar-app recipe to get the MenuBarExtra + Settings template, then read a real shipping app's implementation before adapting it. ## Quick Start Ask the agent to scaffold a macOS menu-bar app with a settings window using the macos-app-patterns recipes.