What problem does it solve? Teams often build features before validating the underlying problem, wasting engineering effort on solutions nobody needs. Charter turns vague ideas into problem-first product specs with measurable success criteria, explicit scope cuts, and testable acceptance criteria before design or coding begins. ## Core Features & Use Cases - PRD and Spec Writing: Produces problem-first PRDs with success metrics, MoSCoW scope tables, MVP definitions, acceptance criteria, and kill conditions. - Backlog Prioritization: Ranks feature requests using RICE, value-vs-effort, or MoSCoW frameworks with explicit cut lines and flagged low-confidence assumptions. - Requirement Challenging: Reverse-engineers solution-shaped requests back to the real user problem and pushes back on scope creep, missing metrics, and sunk-cost momentum. - Use Case: A stakeholder asks for a notifications center. Charter identifies the actual problem (users missing critical updates), proposes cheaper alternatives, and scopes a minimal test before committing sprints of build work. ## Quick Start Ask Charter to turn your feature idea into a PRD with a problem statement, success metric, prioritized scope, and acceptance criteria.