What problem does it solve? Turning a rough product idea into a clear, honest, right-sized product brief is hard: assumptions go unexamined, context gets lost between sessions, and drafts drift from prior decisions. This Skill coaches you through creating, updating, or validating a product brief while keeping a persistent audit trail of every decision. ## Core Features & Use Cases - Three intent modes: Create a new brief from scratch, Update an existing brief against a change signal, or Validate a brief with honest, line-cited critique. - Coached discovery: Conversational brain-dump facilitation with web-research subagents, pushback on thin assumptions, and a choice between a Fast path (batched questions with [ASSUMPTION] tags) or a Coaching path (section-by-section drafting). - Persistent workspace: Each run writes brief.md, an optional addendum.md for deep detail, and an append-only .memlog.md decision log, so work resumes cleanly across sessions. - Use Case: A founder preparing an investor pitch uses the Skill to pressure-test their idea, capture differentiators honestly, and produce a polished 1-2 page brief with an addendum holding market sizing detail for the downstream PRD. ## Quick Start Help me create a product brief for my new mobile app idea using the bmad-product-brief skill.
