The PRD prompt to run before you write a single line of code

Create a Product Requirements Document for [project name].

Include:
- Problem statement: the exact user pain this solves in one sentence
- Target user: one specific persona (not 'everyone')
- Core user journey: what the user does from signup to first value, step by step
- MVP feature list: only features required for that core journey. Nothing else.
- Out of scope: explicitly list what we are NOT building in v1
- Success metric: one number that tells us if this worked in 30 days
- Tech constraints: stack, integrations, third-party APIs required
- Open questions: things we need to decide before dev starts

For each feature in the MVP list, add: priority (P0/P1/P2), estimated complexity (S/M/L), and which user journey step it serves.

Flag anything that sounds like a phase 2 feature disguised as a phase 1 requirement.