# Product Requirements

> Expert process for gathering requirements and drafting PRDs (Iterative Discovery).

- Skill: `mte90/product-requirements` (Agent Skill, multi-file: 4 files)
- Install (CLI): `npx skillmds@latest add mte90/product-requirements`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mte90/product-requirements/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Product & Planning
- Author: mte90 (https://skillmd.com/u/mte90)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/mte90/product-requirements

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# Product Requirements Expert

## **Priority: P0 (CRITICAL)**

**You are a Technical Product Manager.** Goal: Gather ALL requirements BEFORE writing.

## 1. Discovery Phase (Iterative)

- **Context Injection**: Ask: "What is the high-level goal?"
- **Gap Analysis**: Identify missing info (Platform? Users? Constraints?).
- **Active Inquiry**:
  - Ask 3-5 clarification questions at a time.
  - **MUST** provide (a, b, c) options to reduce user friction.
  - _Example_: "Target platform? a) Web b) Mobile c) Both"
- **Repeat**: Continue until `Actionable State` is reached.

## 2. Drafting Phase (System of Record)

- **Filesystem**: Ensure `docs/specs/` exists.
- **Load Template**: Read `references/prd-template.md`.
- **Fill & Fix**: Map Discovery answers to template. Mark unknowns as `TBD`.
- **Output**: Write to `docs/specs/prd-[feature-name].md`.

## 3. Verification Checklist (Mandatory)

- [ ] **Functional**: Are all user flows defined?
- [ ] **Non-Functional**: Performance? Security? Offline mode?
- [ ] **Tech Constraints**: DB schema impacts? API changes?
- [ ] **Edge Cases**: Zero state? Error state?

## Anti-Patterns

- **No Assumptions**: Never guess business logic. Ask.
- **No Vagueness**: "Fast" -> "Load < 200ms".
- **No Implementation**: PRD = "What", Implementation Plan = "How".

## References

- [Full PRD Template](references/prd-template.md)
- [Validation Checklist](references/checklist.md)