justinwetch

Apple Human Interface Guidelines reference (Updated for OS 27 releases). Provides authoritative platform-specific design rules, component specifications, exact measurements, and interaction patterns for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Use when designing, reviewing, or auditing any Apple platform UI, or when asked about specific HIG components, sizing, system behaviors, frameworks (HealthKit, SiriKit, ARKit, etc.), or platform conventions. Also use when the user is designing any digital interface and could benefit from established design principles, even without an explicit Apple platform context.

Use when the user wants to create, improve, evaluate, inspect, run, schedule, automate, or export Skill RSI projects or Agent Skill improvement loops. In Codex desktop, every Skill RSI invocation must open the local Skill RSI web app/sidebar first.