Brutally honest adversarial critique of a product, plan, or startup idea, structured around Marty Cagan's four big risks (value, usability, feasibility, business viability) plus a "is this a real problem" pass. Use when asked to critique, red-team, stress-test, poke holes in, or give honest feedback on a product, app, roadmap, or business plan. Argues the product is wrong, not that it is nearly right.
