What problem does it solve?
It helps you convert a vague phase idea into a clear, MVP-mode vertical slice plan, so you can reliably delegate to the planner-side workflow without guessing what to include.
Core Features & Use Cases
- Structured user story capture: Prompts for an “As a / I want to / So that” user story using three structured questions to validate input shape.
- SPIDR-based size splitting: Checks whether the story is too large and, if so, guides the user through Spike/Paths/Interfaces/Data/Rules to decide how to split across phases.
- ROADMAP modernization + delegation: Writes the phase section with Mode: mvp and reformats Goal:, then delegates planning to
/gsd plan-phase <N> using the roadmap as the source of truth.
Quick Start
Run gsd-mvp-phase for the phase number you already created in ROADMAP.md so it can validate your story, update the ROADMAP to MVP mode, and then kick off plan-phase for that phase.