Run a large-scale language migration with the six-step process: create the map and the rules, stress-test the rules, translate everything, compile, run it, match behavior. Use when the user wants to migrate, port, or rewrite a codebase from one language to another ("migrate this to Rust", "port our Python CLI to TypeScript", "should we rewrite this in Go?"), or asks for a migration feasibility…
Install
npx skills add anthropics/code-migration-kit-with-claude-code --skill code-migrationnpx skills add anthropics/code-migration-kit-with-claude-code --skill code-migration -a claude-code -gnpx skills add anthropics/code-migration-kit-with-claude-code --skill code-migration -a codex -ggemini skills install https://github.com/anthropics/code-migration-kit-with-claude-code.git --path skillgh skill install anthropics/code-migration-kit-with-claude-code code-migrationgit clone --depth 1 https://github.com/anthropics/code-migration-kit-with-claude-code /tmp/anthropics__code-migration-kit-with-claude-code
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/anthropics__code-migration-kit-with-claude-code/skill ~/.claude/skills/code-migration # Claude Code
cp -R /tmp/anthropics__code-migration-kit-with-claude-code/skill ~/.agents/skills/code-migration # Codex, Cursor, Gemini CLI, Copilot, OpenCode