axiom▌

iOS app performance problems fall into distinct categories, each with a specific diagnosis tool. This skill helps you choose the right tool, use it effectively, and interpret results correctly under pressure.

Check dependencies BEFORE blaming code. Core principle 80% of persistent build failures are dependency resolution issues (CocoaPods, SPM, framework conflicts), not code bugs.

axiom-vision-ref

Comprehensive API reference for SwiftUI adaptive layout tools. For decision guidance and anti-patterns, see the axiom-swiftui-layout skill.

✅ Use this skill when:

Systematic accessibility diagnosis and remediation for iOS/macOS apps. Covers the 7 most common accessibility issues that cause App Store rejections and user complaints.

Purpose: Progressive journey from single-threaded to concurrent Swift code Swift Version: Swift 6.3 (strict concurrency by default). @concurrent requires Swift 6.2+. iOS Version: iOS 17+ (iOS 26+ for @concurrent) Xcode: Xcode 16+ (Xcode 26+ for @concurrent)

Use when:

Comprehensive guide to SwiftUI gesture recognition with composition patterns, state management, and accessibility integration.

You MUST use this skill for ANY performance issue including memory leaks, slow execution, battery drain, or profiling.