Apple Design System & Human Interface Guidelines (HIG)

This skill equips AI coding agents with the exact principles, visual specifications, component architectures, typography metrics, color tokens, motion curves, and automated compliance auditing defined by Apple's Human Interface Guidelines (HIG) across iOS, iPadOS, macOS, watchOS, visionOS, and modern Apple-grade Web UI.

🎯 Operational Modes

Mode 1 — Design & Build from Scratch

When tasked with creating new screens, apps, or web interfaces in Apple style:

1. Choose the platform-native navigation paradigm (e.g. Bottom Tab Bar for iOS, Sidebar for macOS/iPad, Ornaments for visionOS).
2. Establish the 8pt spatial grid and continuous squircle curvature (G2 continuity).
3. Apply the SF Pro / New York typography scale with optical tracking rules.
4. Implement semantic Dynamic Colors (Light & OLED Dark mode) and Liquid Frosted Glass materials.
5. Apply Apple spring physics (cubic-bezier(0.25, 1, 0.5, 1)) and tactile active feedback (scale(0.97)).