Turn a rough feature gist into a product doc, mockups, and a scheduled outcome, the way a small expert team would. Use when the stakeholder describes something they want built and it does not exist yet — "product doc for X", "spec this out", "put X on the roadmap", "design X", "I want users to be able to Y". The first step of the delivery cycle; everything downstream (epics, workstreams, implementation sessions) reads what this produces. Not for bug fixes, refactors, or work that already has an outcome issue.
