# Phase Design

> Phase Design

- Skill: `yaomeng1749/phase-design` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yaomeng1749/phase-design`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yaomeng1749/phase-design/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: Yaomeng1749 (https://skillmd.com/u/yaomeng1749)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/yaomeng1749/phase-design

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# Phase Design

Use this skill when the user asks for `/phase-design`, solution design, product/technical concept design, brainstorming into a plan, or the first stage of a non-code solution workflow.

## Purpose

Turn an unclear direction into a small set of credible solution options.

## Workflow

1. Clarify the target user, outcome, constraints, and success criteria.
2. Brainstorm 3-5 candidate solutions.
3. Research market, prior art, competitors, or existing implementations when useful.
4. Filter with first-principles questions:
   - What is the core value?
   - What can be removed?
   - Which constraints are real?
   - Which dependencies should be bought, reused, or built?
5. Ask an architecture reviewer for feasibility when technical architecture matters.
6. Draft a PRD or design brief.
7. Save the design artifact in the project’s normal docs or planning location when appropriate.

## Output

Include:

- candidate solutions
- recommended solution
- assumptions
- architecture sketch
- PRD/design brief
- risks and validation plan

End with `PHASE_DESIGN_DONE` when the design artifact is ready.