dsh-plugin-workbench

Working in DeepSeek Harness through a remote browser often leaves a frustrating gap around files: path mentions in a conversation open on the host and vanish into the void, images and PDFs cannot be previewed, and there is no terminal to speak of. dsh-plugin-workbench closes that gap in one pass. It drops a file browser, a multi-format preview panel, a text editor with optimistic version-conflict detection, and a WebSocket-based terminal straight into the web UI, so you can read, write, upload, rename, delete, and run shell commands without ever leaving your tab.

Security is the second backbone. Every mutating route is off by default and must be explicitly enabled. The plugin fences against path traversal, symlink escape, SVG and HTML script injection, and accidental root deletion. HTML previews run inside a sandboxed iframe with an opaque origin, PDFs are handed to the browser's native viewer, and binary files are refused with a clear explanation rather than served as mojibake. The editor uses optimistic locking: each save carries the file's version token, and if the file has been modified by someone else in the meantime the write is rejected with a 409 while your draft stays intact in the textarea.

It is built for developers and operators who use DeepSeek Harness remotely through a browser. You do not need an SSH session or a local file manager: the file tree re-roots to the directory of the conversation you are viewing, and file paths that appear inline in messages become clickable, opening a preview panel right where you are. No local build step is required.