dsh-file-explorer

DeepSeek Harnasss Web surface ships with only the Chat and Trajectory tabs, leaving session workspace files with no home. dsh-file-explorer adds a Files tab: the left pane is a directory tree rooted at the working folder, expanded level by level with directories first, while the right pane hosts an independent tab per open file. Multiple files stay open side by side, and expanded levels persist as you switch tabs. The preview adapts to each file automatically — Markdown renders as full GFM with tables, task lists, math, code fences, and local images; JSON becomes a collapsible tree with per-value copy; source code gets syntax highlighting, line numbers, and a copy button across 24 grammars; images from PNG to SVG draw directly into the pane; anything else falls back to numbered plain text rather than guessing. Every text body carries a Copy control, and Markdown or HTML documents additionally offer a Source toggle plus an Export menu that downloads a standalone PDF (A4 sliced) or a real .docx with selectable text (Chinese included), bundling the document's local images and stylesheets.

The plugin is strictly read-only, requires no configuration, and persists nothing on disk. HTML previews run inside a sandboxed frame with an opaque origin; SVGs render through a safe pipeline so their scripts never execute. All file reads go through the harness's own workspaceFiles namespace, meaning the host filesystem — not the plugin — decides what is visible.

It is best suited to developers who need to glance at workspace documents, config files, or code snippets without leaving a Harness session, and to teams that want to hand a Markdown or HTML document to a non-terminal audience as a neatly laid-out PDF or an editable Word file. Privacy-conscious users will also appreciate that the plugin holds no credentials, writes no session log, and registers no server-side services, tools, or prompts.