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Hash-anchored read/edit/undo_last_edit tools for DeepSeek Harness (dsh). Every line gets a unique 3-char hash (A-Za-z0-9) that stays stable across edits; stale or ambiguous anchors are rejected, never fuzzy-matched. Undo persists across restarts.

Encoding-governed read/write/edit tools for DeepSeek Harness (dsh): UTF-8 BOM fidelity and byte-exact round-trips for GBK, Big5, Shift-JIS, EUC-KR, Windows-1251 and UTF-16 text files.

「DSH·远程文件系统」：提供模型可见的远程文件工具 read_remote、write_remote、edit_remote，经 ssh 读写远程主机文件。write_remote 只允许新建，绝无覆写分支；文件后端 RemoteFileSystem 不继承 FileSystem，仅借用 @deepseek-ai/dsh-fs 的类型词表与 FsError。标准可安装的 dsh host 插件。

Restore syntax highlighting of read/write tool envelopes inside run_code (PTC / Code Mode) result cards

Line-anchored read/edit/batch_edit/grep/undo_last_edit tools for DeepSeek Harness (dsh). Every line is addressed by `<line>:<anchor>` so chained edits skip a re-read; stale or ambiguous anchors are rejected and a fresh `<line>:<anchor>` is served back. Un