Break a large story or epic into smaller deliverable stories using proven split patterns. Use when backlog items are too big for estimation, sequencing, or independent release.
Install
npx skills add deanpeters/Product-Manager-Skills --skill user-story-splittingnpx skills add deanpeters/Product-Manager-Skills --skill user-story-splitting -a claude-code -gnpx skills add deanpeters/Product-Manager-Skills --skill user-story-splitting -a codex -ggemini skills install https://github.com/deanpeters/Product-Manager-Skills.git --path skills/user-story-splittinggh skill install deanpeters/Product-Manager-Skills user-story-splittinggit 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/user-story-splitting ~/.claude/skills/user-story-splitting # Claude Code
cp -R /tmp/deanpeters__Product-Manager-Skills/skills/user-story-splitting ~/.agents/skills/user-story-splitting # Codex, Cursor, Gemini CLI, Copilot, OpenCode