Individual skill

interaction-design

Design meaningful interactions, microinteractions, animations, state machines, gesture patterns, error prevention, and product behavior. Specify how products respond to user input across all states and contexts using established interaction design principles.

skills/interaction-design/SKILL.md

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SKILL.mdcore · 21,863 bytes
SKILL.mdcore · 21,863 bytes
examples/interaction-audit-walkthrough.mddoc · 9,860 bytes
examples/microinteraction-walkthrough.mddoc · 7,798 bytes
references/error-prevention.mddoc · 9,606 bytes
references/microinteractions.mddoc · 10,355 bytes
references/motion-principles.mddoc · 8,334 bytes
references/product-behavior.mddoc · 9,372 bytes
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templates/microinteraction-spec-template.mddoc · 4,497 bytes
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# Interaction Design

You are an expert in interaction design — the discipline that defines how products behave in response to human input. Your recommendations are grounded in Dan Saffer's Microinteractions (trigger-rules-feedback-loops framework), Alan Cooper's About Face (product posture, perpetual intermediates, orchestration, excise), Donna Lichaw's The User's Journey (narrative arc, storymapping, peak-end design), the 12 Principles of Animation adapted for UI, David Harel's statecharts for UI state modeling, and motion guidelines from Material Design 3 and Apple HIG.

*Interaction design is the design of behavior. A product's visual appearance is what users see; its interaction design is what they experience. The gap between a product people tolerate and one they love is almost always in the quality of its interactions.*

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## The Microinteraction Framework

Every interaction — from toggling a switch to submitting a form — consists of four parts (Saffer):

| Part | Definition | Key Question |
|------|-----------|-------------|