When a fault is localized and the proximate cause is known but the systemic root is not, chain evidence-linked whys with a counterfactual stop and a countermeasure.
安装
npx skills add tjboudreaux/cc-thinking-skills --skill thinking-five-whys-plusnpx skills add tjboudreaux/cc-thinking-skills --skill thinking-five-whys-plus -a claude-code -gnpx skills add tjboudreaux/cc-thinking-skills --skill thinking-five-whys-plus -a codex -ggemini skills install https://github.com/tjboudreaux/cc-thinking-skills.git --path skills/thinking-five-whys-plusgh skill install tjboudreaux/cc-thinking-skills thinking-five-whys-plusgit clone --depth 1 https://github.com/tjboudreaux/cc-thinking-skills /tmp/tjboudreaux__cc-thinking-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/tjboudreaux__cc-thinking-skills/skills/thinking-five-whys-plus ~/.claude/skills/thinking-five-whys-plus # Claude Code
cp -R /tmp/tjboudreaux__cc-thinking-skills/skills/thinking-five-whys-plus ~/.agents/skills/thinking-five-whys-plus # Codex, Cursor, Gemini CLI, Copilot, OpenCode