axiom▌

Discipline-enforcing skill for building layouts that respond to available space rather than device assumptions. Covers tool selection, size class limitations, iOS 26 free-form windows, and common anti-patterns.

Purpose: Complete migration path from Realm to SwiftData Swift Version: Swift 5.9+ (Swift 6 with strict concurrency recommended) iOS Version: iOS 17+ (iOS 26+ recommended) Context: Realm Device Sync sunset Sept 30, 2025. This guide is essential for Realm users migrating before deadline.

Purpose: Build 3D content, AR experiences, and spatial computing apps using RealityKit's Entity-Component-System architecture iOS Version: iOS 13+ (base), iOS 18+ (RealityView on iOS), visionOS 1.0+ Xcode: Xcode 15+

The Foundation Models framework provides access to Apple's on-device Large Language Model (3 billion parameters, 2-bit quantized) with a Swift API. This reference covers every API, all WWDC 2025 code examples, and comprehensive implementation patterns.

Systematic diagnosis for frame rate issues on variable refresh rate displays (ProMotion, iPad Pro, future devices). Covers render loop configuration, frame pacing, hitch mechanics, and production telemetry.

Complete API reference for iOS background execution, with code examples from WWDC sessions.

Use when:

Comprehensive guide to App Shortcuts framework for making your app's actions instantly available in Siri, Spotlight, Action Button, Control Center, and other system experiences. App Shortcuts are pre-configured App Intents that work immediately after app install—no user setup required.

This skill provides comprehensive API reference for Apple's widget and extension ecosystem:

Systematic diagnosis for common Metal porting issues.