Mobile Design System

(Mobile-First · Touch-First · Platform-Respectful)

Philosophy: Touch-first. Battery-conscious. Platform-respectful. Offline-capable. Core Law: Mobile is NOT a small desktop. Operating Rule: Think constraints first, aesthetics second.

This skill exists to prevent desktop-thinking, AI-defaults, and unsafe assumptions when designing or building mobile applications.

1. Scope and risk

Use the existing project/platform requirements and preserve its conventions. Ask only for missing information that changes the implementation. Do not require an interview or framework switch for a targeted fix. The former MFRI score was an unvalidated heuristic with inconsistent dimensions/range; it is not a safety or release gate. Record concrete interaction, data, accessibility and performance risks instead.