What problem does it solve? When requirements are unclear, feasibility is uncertain, or stakeholders disagree on UI direction, teams often build the wrong prototype or skip evaluation entirely. This Skill provides a decision framework for choosing what to prototype, at what fidelity, with what lifecycle intent, and how to evaluate the results. ## Core Features & Use Cases - Adaptive Selection Questions: Four structured questions covering prototype purpose, fidelity level, lifecycle intent, and evaluation method drive a concrete recommendation. - Recommendation Logic: Maps answer combinations to specific approaches such as paper prototypes, clickable wireframes, vertical proof-of-concepts, and Wizard of Oz setups, each with scope, time estimates, and outputs. - Evaluation Script Template: A reusable session script covering introduction, background questions, task scenarios, post-task questions, and debrief. - Use Case: A team unsure how users will search a chemical inventory answers the four questions, receives a recommendation for a low-fidelity horizontal throwaway prototype, and runs task-based think-aloud sessions with five lab technicians. ## Quick Start Ask the assistant to help you choose a prototyping approach for a feature with uncertain requirements and have it walk you through the four selection questions.