Use AST-aware tools such as libcst, ts-morph, or jscodeshift for repeatable code migrations across many files.
Install
npx skills add alivirgo/Major-AI-Skills --skill ast-refactoring-scriptsnpx skills add alivirgo/Major-AI-Skills --skill ast-refactoring-scripts -a claude-code -gnpx skills add alivirgo/Major-AI-Skills --skill ast-refactoring-scripts -a codex -ggemini skills install https://github.com/alivirgo/Major-AI-Skills.git --path skills/ast-refactoring-scriptsgh skill install alivirgo/Major-AI-Skills ast-refactoring-scriptsgit clone --depth 1 https://github.com/alivirgo/Major-AI-Skills /tmp/alivirgo__Major-AI-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alivirgo__Major-AI-Skills/skills/ast-refactoring-scripts ~/.claude/skills/ast-refactoring-scripts # Claude Code
cp -R /tmp/alivirgo__Major-AI-Skills/skills/ast-refactoring-scripts ~/.agents/skills/ast-refactoring-scripts # Codex, Cursor, Gemini CLI, Copilot, OpenCode