Prototyping

Purpose

Create prototypes at appropriate fidelity levels — from low-fidelity wireframes to high-fidelity interactive mockups — to validate design decisions, test usability, communicate interactions, and align stakeholders before committing to development. A prototype answers a specific question at the lowest cost.

Agent Protocol

Trigger

Exact user phrases: "prototype", "wireframe", "mockup", "interactive prototype", "fidelity", "click-through", "design validation", "prototyping tool", "rapid prototyping", "paper prototyping".

Input Context

• What question the prototype needs to answer (feasibility, usability, desirability, viability)
• Target audience for testing (internal stakeholders, users, developers)
• Timeline and resources available (hours, days, weeks)
• Existing design artifacts (sketches, user flows, information architecture)
• Fidelity requirements (lo-fi, mid-fi, hi-fi) based on stage of the project
• Platform constraints (web, mobile, desktop, hardware)