What problem does it solve? Reviewing macOS app interfaces against Apple's evolving design standards is time-consuming and error-prone, especially with the new Liquid Glass design system and macOS 26 (Tahoe) Human Interface Guidelines. This Skill provides a structured, expert-level audit of SwiftUI and AppKit interfaces so issues are caught before users do. ## Core Features & Use Cases - Liquid Glass Design Audit: Evaluates transparency, materials, depth hierarchy, animations, and menu bar integration against the macOS 26 design language. - HIG & Platform Compliance Checks: Verifies window chrome, toolbars, menus, keyboard shortcuts, navigation patterns, and control usage against macOS Tahoe guidelines. - Accessibility Review: Checks VoiceOver support, keyboard navigation, Dynamic Type, color contrast, and reduce-motion handling. - Use Case: Before shipping a SwiftUI macOS app, paste your view code or screenshots and receive a prioritized report with critical issues, HIG violations, and concrete SwiftUI/AppKit fix examples. ## Quick Start Ask the assistant to review your macOS app's SwiftUI view code or screenshots for macOS Tahoe HIG compliance and accessibility issues.