教学过程中自动捕获和记录学习者的概念疑难点（"为什么/是什么/怎么推/什么意思"类型的问题），保存到进度文件的"概念疑难点记录"区，形成考前回顾清单。
安装
npx skills add ZeKaiNie/universal-examprep-skill --skill confusion-trackernpx skills add ZeKaiNie/universal-examprep-skill --skill confusion-tracker -a claude-code -gnpx skills add ZeKaiNie/universal-examprep-skill --skill confusion-tracker -a codex -ggemini skills install https://github.com/ZeKaiNie/universal-examprep-skill.git --path full/skills/confusion-trackergh skill install ZeKaiNie/universal-examprep-skill confusion-trackergit clone --depth 1 https://github.com/ZeKaiNie/universal-examprep-skill /tmp/ZeKaiNie__universal-examprep-skill
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/ZeKaiNie__universal-examprep-skill/full/skills/confusion-tracker ~/.claude/skills/confusion-tracker # Claude Code
cp -R /tmp/ZeKaiNie__universal-examprep-skill/full/skills/confusion-tracker ~/.agents/skills/confusion-tracker # Codex, Cursor, Gemini CLI, Copilot, OpenCode