Build a phase-gated EOL checklist sized to the sunset, with a named owner on every item. Use when the decision to retire is made and you need the operational plan.
Install
npx skills add deanpeters/Product-Manager-Skills --skill eol-checklistnpx skills add deanpeters/Product-Manager-Skills --skill eol-checklist -a claude-code -gnpx skills add deanpeters/Product-Manager-Skills --skill eol-checklist -a codex -ggemini skills install https://github.com/deanpeters/Product-Manager-Skills.git --path skills/eol-checklistgh skill install deanpeters/Product-Manager-Skills eol-checklistgit clone --depth 1 https://github.com/deanpeters/Product-Manager-Skills /tmp/deanpeters__Product-Manager-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/deanpeters__Product-Manager-Skills/skills/eol-checklist ~/.claude/skills/eol-checklist # Claude Code
cp -R /tmp/deanpeters__Product-Manager-Skills/skills/eol-checklist ~/.agents/skills/eol-checklist # Codex, Cursor, Gemini CLI, Copilot, OpenCode