Article outlines practical “skill packs” to improve how AI agents like Codex and Claude Code work on iOS/macOS projects in Xcode, reducing deprecated code and build/debug issues.

It highlights curated SwiftUI, concurrency, testing, data persistence, build optimization, and architecture skills from Paul Hudson, Antoine van der Lee, Thomas Ricouard, and Krzysztof Zabłocki, plus official Codex plugins. It also introduces the AppCreator skill, which scaffolds agent-friendly Xcode projects with Makefiles, strict compiler settings, and clean build/test output.