Use when code mutates shared data or updates a record in place, when a concurrent update is lost or races, or when parallel work needs cancelling together.
安装
npx skills add yutna/functional-design-skills --skill functional-managing-state-immutablynpx skills add yutna/functional-design-skills --skill functional-managing-state-immutably -a claude-code -gnpx skills add yutna/functional-design-skills --skill functional-managing-state-immutably -a codex -ggemini skills install https://github.com/yutna/functional-design-skills.git --path plugin/skills/functional-managing-state-immutablygh skill install yutna/functional-design-skills functional-managing-state-immutablygit 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-managing-state-immutably ~/.claude/skills/functional-managing-state-immutably # Claude Code
cp -R /tmp/yutna__functional-design-skills/plugin/skills/functional-managing-state-immutably ~/.agents/skills/functional-managing-state-immutably # Codex, Cursor, Gemini CLI, Copilot, OpenCode