microinteractions

SKILL.md

Microinteractions Framework

A systematic approach to designing the tiny, contained product moments that users interact with every day -- toggles, password fields, loading indicators, pull-to-refresh, like buttons. Based on Dan Saffer's four-part structure (Trigger, Rules, Feedback, Loops & Modes), this framework turns invisible details into the polish that separates forgettable products from beloved ones.

Core Principle

The difference between a product you tolerate and a product you love is almost always in the microinteractions. A microinteraction is a contained product moment built around a single use case: changing a setting, syncing data, setting an alarm, picking a password. They are so small that users rarely think about them consciously -- but they feel them. Every microinteraction follows the same four-part structure: a Trigger initiates it, Rules determine what happens, Feedback shows what is happening, and Loops & Modes define its long-term behavior.

Scoring

Goal: 10/10. When reviewing or creating microinteractions, rate them 0-10 based on adherence to the principles below. A 10/10 means every interactive moment has a deliberate trigger, clear rules, immediate feedback, and thoughtful loop/mode behavior. Lower scores indicate gaps to address. Always provide the current score and specific improvements needed to reach 10/10.

The Microinteraction Structure

Six areas of focus for designing world-class microinteractions:

1. Triggers

Core concept: The trigger is what initiates a microinteraction. It can be manual (user-initiated -- a tap, click, swipe, voice command) or system-initiated (a condition is met -- time, location, incoming data, error state). The trigger is the front door of every microinteraction.