macOS Development Expert

Lifecycle Position

Phases 0-1 (Scaffold → Architecture). Start here for new apps (app-planner/ module) and system design (architecture-patterns/ module). Next: load macos-app-design for UI design.

Comprehensive guidance for macOS app development. This skill aggregates specialized modules for different aspects of macOS development.

When This Skill Activates

Use this skill when the user:

• Is planning a new macOS app or a major feature
• Needs architecture guidance for a macOS app
• Needs reference guidance for SwiftData, AppKit bridging, sandboxing, or macOS 26 (Tahoe) APIs
• Needs help choosing the right module before implementation starts

Available Modules