axiom▌

Purpose: Build reliable SpriteKit games by mastering the scene graph, physics engine, action system, and rendering pipeline iOS Version: iOS 13+ (SwiftUI integration), iOS 11+ (SKRenderer) Xcode: Xcode 15+

Use when:

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+

Direct SQLite access using GRDB.swift — a toolkit for SQLite databases with type-safe queries, migrations, and reactive observation.

Type-safe SQLite persistence using SQLiteData (pointfreeco/sqlite-data) by Point-Free. A fast, lightweight replacement for SwiftData with CloudKit synchronization support, built on GRDB (groue/GRDB.swift) and StructuredQueries (pointfreeco/swift-structured-queries).

You MUST use this skill for ANY computer vision work using the Vision framework.

You MUST use this skill for ANY on-device machine learning or speech-to-text work.

Complete reference for typography on Apple platforms including San Francisco font system, text styles, Dynamic Type, tracking, leading, and internationalization through iOS 26.

Complete reference for converting OpenGL/DirectX code to Metal.

Complete API reference for SpriteKit organized by category.