DSH Developer Workbench / DSH 开发工作台

An independent developer-workbench plugin for DeepSeek Harness: inspect the active project's files, preview a local web app or website, and use an interactive project terminal without leaving the conversation.

为 DeepSeek Harness 提供独立的开发工作台：在对话中查看已打开项目的文件和代码、预览本地 Web 应用或网页，并直接使用项目交互式终端。

What it adds / 功能

• Explorer & code viewer — browse only Harness-registered workspaces and read text files directly in the workbench.

• Embedded preview — load an http/https development server or web URL beside the code. Loopback development servers use a workspace-scoped local proxy so restrictive frame headers do not block the preview; external sites may still refuse embedding.

• Interactive PTY terminal — clicking Terminal starts a persistent shell in the selected Harness workspace. Type, paste, use shell history and completion, or send Ctrl+C directly in the same terminal surface; there is no separate command form.

• Codex-like expanding workflow — a compact utility group in the upper-right of a workspace conversation opens Preview as a real right-hand column and Terminal as a real bottom region. The conversation reflows instead of being covered. The lighter Explorer/code surface remains floating by design.

• Chinese and English — labels follow DeepSeek Harness’s current language.

• 文件树与代码查看 —— 仅浏览已在 Harness 中登记的工作区，并在工作台内只读打开文本文件。

• 内嵌预览 —— 在代码旁加载 http/https 开发服务器或网页。回环地址的开发服务器会通过工作区限定的本地代理加载，避免被禁止 iframe 的响应头拦截；外部网站仍可能拒绝内嵌。

• 交互式 PTY 终端 —— 点击“终端”后，会在所选 Harness 工作区中启动持续运行的 Shell。用户可直接输入、粘贴、使用历史记录和补全，也可发送 Ctrl+C；界面不再拆分命令输入框与响应区。

• 接近 Codex 的扩展式开发流 —— 工作区会话右上角的紧凑工具组会把预览展开为真正的右侧栏，把终端展开为真正的底部区域；主会话随之重排而不会被遮挡。较轻量的文件树与代码查看器按设计保留悬浮形态。

• 中英文适配 —— 菜单与交互文案跟随 DeepSeek Harness 当前语言。

Install / 安装

npm install @tobewin/dsh-developer-workbench

Install it through DeepSeek Harness Plugin Market and restart Harness if requested. Open a conversation attached to a workspace: its upper-right utilities contain the compact Developer Workbench / 开发工作台 controls. They are intentionally absent from temporary and other no-workspace conversations.

通过 DeepSeek Harness 插件市场安装；若系统提示，请重启 Harness。打开一个已关联工作区的会话后，右上角会显示紧凑的 开发工作台 / Developer Workbench 控件；临时会话及其他未关联工作区的会话不会显示该入口。

Safety and privacy / 安全与隐私

This plugin deliberately uses only public DSH seams: session-header and input-dock slots, the public right-details layout controller, locale service, webServer, workspaceRegistry, and the host subprocess.spawnTerminal PTY service. It never patches Harness source files or depends on private DOM structure.

The host API verifies that every requested root is a currently registered Harness workspace. File access is read-only and rejects traversal outside that root, binary files, and files larger than 512 KB. The terminal is a user-controlled local shell, not a security sandbox: it starts only after the user opens Terminal, in the selected workspace, but a command can still access whatever the current user account is allowed to access. Open it only for projects you trust.

本插件只使用 DSH 的公开能力：会话标题栏与输入区插槽、公开的右侧详情栏布局控制器、语言服务、webServer、workspaceRegistry 与宿主的 subprocess.spawnTerminal PTY 服务；不会修改 Harness 源码，也不依赖私有 DOM 结构。

宿主 API 会验证每个根目录都是当前已登记的 Harness 工作区。文件读取为只读，拒绝越界路径、二进制文件和大于 512 KB 的文件。终端是用户主动开启的本机 Shell，不是安全沙箱：仅在用户打开终端后启动，并以选定工作区为初始目录，但命令仍可能访问当前系统账户有权限访问的内容。请只在信任的项目中打开。

Development / 开发

pnpm install
pnpm check
pnpm build

The plugin source is standalone; no DeepSeek Harness repository files need to be changed.

插件源码完全独立，不需要改动 DeepSeek Harness 仓库中的任何文件。