Defining Requirements
What to read
Understanding atomic features (what a Feature IS and IS NOT): → atomic-refinement-guide.md#what-is-a-feature
The hierarchy (Epic → Feature → Scenario): → atomic-refinement-guide.md#the-hierarchy
Mini-PRD structure (8 sections): → refinement-guide.md#mini-prd-structure
Delivery chunking (splitting epics for implementation): → atomic-refinement-guide.md#prd-vs-delivery-chunking
For the full Refinement phase workflow: → af-refine-specifications/SKILL.md