数据清洗规范。当用户要求清洗/整理数据集、制定清洗规则、去重与缺失值处理、或产出清洗报告时使用。先画像再定规，规则先写进 rules.md 再动手，脚本只读原始数据绝不原地修改，处理后数据写入产物目录（不进 git），产出含行号/计数证据的清洗报告。
安装
npx skills add hongtongzhou-design/ccode --skill data-cleannpx skills add hongtongzhou-design/ccode --skill data-clean -a claude-code -gnpx skills add hongtongzhou-design/ccode --skill data-clean -a codex -ggemini skills install https://github.com/hongtongzhou-design/ccode.git --path src-tauri/resources/skills/data-cleangh skill install hongtongzhou-design/ccode data-cleangit clone --depth 1 https://github.com/hongtongzhou-design/ccode /tmp/hongtongzhou-design__ccode
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/hongtongzhou-design__ccode/src-tauri/resources/skills/data-clean ~/.claude/skills/data-clean # Claude Code
cp -R /tmp/hongtongzhou-design__ccode/src-tauri/resources/skills/data-clean ~/.agents/skills/data-clean # Codex, Cursor, Gemini CLI, Copilot, OpenCode