Skill UI

Provides comprehensive guidance on implementing standard user interface controls according to Apple's Human Interface Guidelines (HIG). It details the appropriate use cases for toggles, segmented controls, pickers, sliders, and other input elements, ensuring designs are consistent, accessible, and optimized for the Apple ecosystem.

A comprehensive, expert-level guideline for building Agentic User Interfaces (UIs). This system emphasizes conversational interactions, clear outcomes, and minimal user controls, allowing users to delegate complex tasks to AI. It provides structured rules covering color tokens, typography, accessibility (WCAG 2.2 AA), and component anatomy for professional developers and designers.