axiom▌

Apple's native persistence framework using @Model classes and declarative queries. Built on Core Data, designed for SwiftUI.

Apple Vision Framework for computer vision tasks: subject segmentation, pose detection, text recognition, barcode scanning, and document processing. \n \n Covers 13+ Vision APIs across subject lifting, hand/body pose, person segmentation, text OCR, barcode detection, and document scanning with decision trees for choosing the right tool \n Includes 15 production patterns: combining APIs to exclude hands from objects, real-time gesture recognition, multi-person segmentation, fitness action classif

Core principle 90% of cloud sync problems stem from account/entitlement issues, network connectivity, or misunderstanding sync timing—not iCloud infrastructure bugs.

You MUST use this skill for ANY iOS system integration including Siri, Shortcuts, widgets, in-app purchases, camera, photo library, audio, axiom-haptics, and more.

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.

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.

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.

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