Product Lens — Think Before You Build This lane owns product diagnosis, not implementation-ready specification writing. If the user needs a durable PRD-to-SRS or capability-contract artifact, hand off to . When to Use - Before starting any feature — validate the "why" - Weekly product review — are we building the right thing? - When stuck choosing between features - Before a launch — sanity check the user journey - When converting a vague idea into a product brief before engineering planning starts How It Works Mode 1: Product Diagnostic Like YC office hours but automated. Asks the hard quest…