---
name: af-define-requirements
description: Define atomic feature requirements and create mini-PRDs for structured delivery. Use when starting requirements work, structuring Epics/Features/Scenarios, or breaking down work into atomic units.

# AgentFlow documentation fields
title: Defining Requirements (Entry Point)
created: 2026-02-06
updated: 2026-02-06
last_checked: 2026-02-06
tags: [skill, entry-point, requirements, mini-prd, atomic, features]
parent: ../README.md
related:
  - ../../docs/guides/atomic-refinement-guide.md
  - ../../docs/guides/refinement-guide.md
  - ../af-refine-specifications/SKILL.md
---

# Defining Requirements

## What to read

**Understanding atomic features (what a Feature IS and IS NOT):**
→ [atomic-refinement-guide.md#what-is-a-feature](../../docs/guides/atomic-refinement-guide.md#what-is-a-feature)

**The hierarchy (Epic → Feature → Scenario):**
→ [atomic-refinement-guide.md#the-hierarchy](../../docs/guides/atomic-refinement-guide.md#the-hierarchy)

**Mini-PRD structure (8 sections):**
→ [refinement-guide.md#mini-prd-structure](../../docs/guides/refinement-guide.md#mini-prd-structure)

**Delivery chunking (splitting epics for implementation):**
→ [atomic-refinement-guide.md#prd-vs-delivery-chunking](../../docs/guides/atomic-refinement-guide.md#prd-vs-delivery-chunking)

**For the full Refinement phase workflow:**
→ [af-refine-specifications/SKILL.md](../af-refine-specifications/SKILL.md)