Use when deciding whether to split a function or module, when a boolean parameter selects behaviour, or when two pieces always change together.
安装
npx skills add yutna/functional-design-skills --skill functional-splitting-and-joining-codenpx skills add yutna/functional-design-skills --skill functional-splitting-and-joining-code -a claude-code -gnpx skills add yutna/functional-design-skills --skill functional-splitting-and-joining-code -a codex -ggemini skills install https://github.com/yutna/functional-design-skills.git --path plugin/skills/functional-splitting-and-joining-codegh skill install yutna/functional-design-skills functional-splitting-and-joining-codegit clone --depth 1 https://github.com/yutna/functional-design-skills /tmp/yutna__functional-design-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/yutna__functional-design-skills/plugin/skills/functional-splitting-and-joining-code ~/.claude/skills/functional-splitting-and-joining-code # Claude Code
cp -R /tmp/yutna__functional-design-skills/plugin/skills/functional-splitting-and-joining-code ~/.agents/skills/functional-splitting-and-joining-code # Codex, Cursor, Gemini CLI, Copilot, OpenCode