Documents the reasoning behind design decisions including alternatives considered, trade-offs evaluated, and principles applied. Use when making significant UX decisions, aligning with stakeholders on design direction, or preserving design context for future reference.
Install
npx skills add product-on-purpose/pm-skills --skill develop-design-rationalenpx skills add product-on-purpose/pm-skills --skill develop-design-rationale -a claude-code -gnpx skills add product-on-purpose/pm-skills --skill develop-design-rationale -a codex -ggemini skills install https://github.com/product-on-purpose/pm-skills.git --path skills/develop-design-rationalegh skill install product-on-purpose/pm-skills develop-design-rationalegit clone --depth 1 https://github.com/product-on-purpose/pm-skills /tmp/product-on-purpose__pm-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/product-on-purpose__pm-skills/skills/develop-design-rationale ~/.claude/skills/develop-design-rationale # Claude Code
cp -R /tmp/product-on-purpose__pm-skills/skills/develop-design-rationale ~/.agents/skills/develop-design-rationale # Codex, Cursor, Gemini CLI, Copilot, OpenCode