Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading), reduced-motion, or the design foundations (feedback, spatial consistency, restraint) behind Apple-style interfaces.
Design, implement, and verify App Intents, App Entities, App Shortcuts, widgets, Siri, Spotlight, and Apple Intelligence surfaces with stable identity and safe execution.
Diagnose SwiftUI rendering, launch, responsiveness, concurrency, memory, energy, and simulator failures using reproducible traces and before-after evidence.
Mobile-first design mastery — touch targets, gesture patterns, responsive breakpoints, native-feel animations, thumb zones, platform conventions (iOS/Android), and progressive enhancement strategies
Design and review Swift 6 concurrency boundaries using structured tasks, actors, Sendable values, cancellation, and compiler-backed data-race safety.
Build an Apple-platform test strategy with Swift Testing for unit and integration coverage, XCTest for UI automation, deterministic fixtures, and concise agent-readable results.
Design and review SwiftData schemas, queries, migrations, isolation, CloudKit assumptions, offline behavior, and deterministic persistence tests.
Design, build, refactor, and review production SwiftUI interfaces with explicit state ownership, navigation, accessibility, design tokens, previews, and simulator verification.