Analyze, compare, preview, and safely clean Windows disk space. Use when a user asks to inspect a full C drive, find large files, compare disk growth, remove temporary files or caches, clean Windows update leftovers, migrate growing application data, or schedule low-risk maintenance. This unified skill routes the request through four bundled community backends and keeps deletion separate from read-only analysis.
本地磁盘重要资料备份库。用于把一台电脑上有价值的内容按 P0/P1/P2 分类、只读复制到异地/异盘备份根、生成索引清单与完整性校验，并明确“备份优先于清理”的安全边界。触发词：备份电脑、打包资料、迁移文件、整理磁盘、防止丢失、做个备份、把重要文件拷到别的盘。
