Refactor legacy codebases, migrate outdated frameworks, and implement gradual modernization. Handles technical debt, dependency updates, and backward compatibility. Use PROACTIVELY for legacy system updates, framework migrations, or technical debt reduction.
Install
npx skills add sickn33/agentic-awesome-skills --skill legacy-modernizernpx skills add sickn33/agentic-awesome-skills --skill legacy-modernizer -a claude-code -gnpx skills add sickn33/agentic-awesome-skills --skill legacy-modernizer -a codex -ggemini skills install https://github.com/sickn33/agentic-awesome-skills.git --path skills/legacy-modernizergh skill install sickn33/agentic-awesome-skills legacy-modernizergit clone --depth 1 https://github.com/sickn33/agentic-awesome-skills /tmp/sickn33__agentic-awesome-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/sickn33__agentic-awesome-skills/skills/legacy-modernizer ~/.claude/skills/legacy-modernizer # Claude Code
cp -R /tmp/sickn33__agentic-awesome-skills/skills/legacy-modernizer ~/.agents/skills/legacy-modernizer # Codex, Cursor, Gemini CLI, Copilot, OpenCode