What problem does it solve? Interfaces often feel dead or untrustworthy because small interaction details like button feedback, loading states, and toggle behavior are poorly designed. This Skill provides a structured framework based on Dan Saffer's four-part model (Trigger, Rules, Feedback, Loops & Modes) to design, audit, and score these contained product moments. ## Core Features & Use Cases - Four-Part Design Framework: Design triggers, rules, feedback, and loops/modes for toggles, form validation, pull-to-refresh, loading states, and notifications. - 8-Row Diagnostic Audit: Score any microinteraction out of 10 using a quick diagnostic table covering discoverability, feedback timing, mode visibility, and progressive reduction. - Detailed Case Studies: Reference implementations for form submission, toggles, pull-to-refresh, loading states, and toast notifications, including animation specs, accessibility requirements, and edge cases. - Use Case: When a user says the interface feels unresponsive, audit the submit button flow and get concrete fixes such as sub-100ms visual state changes, debounced double-clicks, and honest progress indicators. ## Quick Start Audit the loading state and submit button feedback in my checkout form and suggest specific microinteraction improvements.
