Use when domain code needs a database or clock, when tests need heavy mocking, or when an effect system or library makes simple code ceremonial.
Install
npx skills add yutna/functional-design-skills --skill functional-parameterizing-dependenciesnpx skills add yutna/functional-design-skills --skill functional-parameterizing-dependencies -a claude-code -gnpx skills add yutna/functional-design-skills --skill functional-parameterizing-dependencies -a codex -ggemini skills install https://github.com/yutna/functional-design-skills.git --path plugin/skills/functional-parameterizing-dependenciesgh skill install yutna/functional-design-skills functional-parameterizing-dependenciesgit 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-parameterizing-dependencies ~/.claude/skills/functional-parameterizing-dependencies # Claude Code
cp -R /tmp/yutna__functional-design-skills/plugin/skills/functional-parameterizing-dependencies ~/.agents/skills/functional-parameterizing-dependencies # Codex, Cursor, Gemini CLI, Copilot, OpenCode