--- id: 68 title: Claude Code Skills Migration group: v1.31 Features --- **Part of:** `npx @golem15/msd-core` **Purpose:** Migrate MSD commands to Claude Code 2.1.88+ skills format with backward compatibility. **Requirements:** - REQ-SKILLS-01: Installer MUST write `skills/msd-*/SKILL.md` for Claude Code 2.1.88+ - REQ-SKILLS-02: Installer MUST auto-clean legacy `commands/msd/` directory - REQ-SKILLS-03: Installer MUST maintain backward compatibility with older Claude Code versions via the legacy `commands/msd/` path **Process:** 1. **Detect** — Check Claude Code version to determine skills support 2. **Migrate** — Write `skills/msd-*/SKILL.md` files for each MSD command 3. **Clean** — Remove legacy `commands/msd/` directory if skills are installed 4. **Fallback** — Maintain legacy `commands/msd/` path compatibility for older Claude Code versions