# Design

> Adds domain design guidance for ralplan planner phase.

- Skill: `yeachan-heo/design` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yeachan-heo/design`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yeachan-heo/design/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: yeachan-heo (https://skillmd.com/u/yeachan-heo)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yeachan-heo/design

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Use domain-specific design constraints before drafting the ralplan planner artifact.