design-sprint

Run a structured 5-day process to prototype, test, and validate product ideas with real users. Use when the user mentions "design sprint", "validate in a week", "rapid prototype", "test with users", "de-risk before building", "GV sprint", "prototype testing", "design workshop", "should we build this", "validate an idea fast", or "test before we build". Also trigger when a team must make a critical product decision quickly, resolve stakeholder disagreements, or test a risky idea before investing in development. Covers mapping, sketching, deciding, prototyping, and testing. For ongoing experimentation, see lean-startup. For customer job analysis, see jobs-to-be-done.