What problem does it solve? Teams facing high-stakes product decisions often get stuck in endless debate or invest months building features nobody wants. This Skill provides a structured five-day process to map the problem, sketch solutions, decide on a direction, build a realistic prototype, and test it with five real users before writing production code. ## Core Features & Use Cases - Day-by-Day Sprint Facilitation: Detailed schedules, exercises, and outputs for each sprint day (Map, Sketch, Decide, Prototype, Test), including time-boxing guidance and role assignments. - User Testing Framework: A five-act interview script, note-taking grid, and pattern-recognition method for extracting reliable signals from five customer interviews. - Supporting References: In-depth guides for facilitation, participant recruiting, remote sprint adaptation, and real case studies from Slack, Blue Bottle, Savioke, and others. - Use Case: A product team debating whether to build a new onboarding flow can run this sprint to prototype two competing approaches on Thursday and watch five target users react on Friday, ending the week with a validated decision instead of a month of meetings. ## Quick Start Ask the assistant to plan a design sprint for your product challenge, starting with Monday's long-term goal, sprint questions, and customer journey map.