Pasumao/dsh-plugin-workbench

dsh-plugin-workbench

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⛔ This plugin is no longer maintained (2026-09-11)

As of DSH 0.1.5, the official build ships a workspace file tree and document preview out of the box (built-in bundles @deepseek-ai/dsh-client-ui-sidebar-files: right-sidebar file tree with lazy directory listing; @deepseek-ai/dsh-client-ui-sidebar-documentpreview: Markdown / highlighted code / image / PDF / HTML / plain-text previews), which covers this plugin's core capabilities as a first-party implementation — no layout patch, no reliance on unofficial host APIs, upgraded automatically with dsh. This plugin is therefore discontinued: no further maintenance or releases. Existing users are advised to uninstall it and use the built-in features:

dsh plugin --profile web remove dsh-plugin-workbench
# Optional: restore the layout bundle to the pristine official version
node node_modules/dsh-plugin-workbench/scripts/patch-layout.mjs --restore
# Restart dsh web to take effect

Published versions remain installable (tested against DSH 0.1.5-rc.1), but bugs will not be fixed and newer dsh versions will not be adapted. Thanks to every user and every star ⭐.

A VS Code-style workbench that edits files directly — not a read-only preview: file tree + editable code preview (syntax highlighting, tabs, line-number gutter) + right-click file operations (new / rename / delete / copy / cut / paste / open in system / reveal in file explorer) + inline image preview, with state saved independently per workspace. Once installed, the DSH web GUI becomes a lightweight code editor.

✅ Works out of the box: since 0.0.9 the layout patch is fully automated — it takes effect right after install and restart; if a DSH upgrade overwrites the bundle, the plugin patches it back automatically, with no manual steps required (manual action is only needed if the anchors break, see the "Configuration" section). Since 0.0.15 both build flavors — the npm build and the DSH Desktop bundled build — are detected automatically, so DSH Desktop works out of the box too.

What you'll see after installing:

• A file tree sidebar on the left (lazy loading + 2-second auto-refresh, expansion state kept per workspace);
• @relative-path mentions in messages turn into clickable links that open a preview in the workbench;
• Drag files from the left panel into the chat area and the path is inserted into the input box automatically.

Screenshot

Real Web GUI screenshot.

Features

• File tree: lazy loading, 2-second auto-refresh, expansion state kept per workspace
• File icons: colored badges for common code formats / emoji for images, audio & video, archives, etc.; expanded and collapsed directories are visually distinguished
• Editable preview: transparent textarea layered over syntax highlighting, save with Ctrl+S/Cmd+S; Markdown renders a preview by default (one-click switch between source and rendered view); prose formats like .txt and very large code files automatically fall back to plain-text editing — fast to load, no UI jank
• Disk change sync: when an open file is modified externally (e.g. saved by an agent or another editor), clean tabs reload automatically, while tabs with unsaved edits show a "⟳" badge (click to reload); if a watched directory is deleted or access-restricted, the watcher degrades gracefully (state cleaned up, retry allowed) and never crashes the host process
• Line-number gutter: logical line numbers along the editor's left edge, locked in alignment with text scrolling (works in both plain-text and highlighted modes)
• Image preview: png/jpg/gif/webp/avif/svg and more render inline directly (same-origin byte route, 20MB limit)
• Context menu (VS Code style): right-click on files, folders, any blank space in the panel, or the panel header — new file, new folder, rename, delete (recursive, with confirmation), copy path, copy / cut / paste, refresh, open in system, select all, undo, reveal in file explorer (a file is revealed selected in its folder, a folder opens directly; Windows explorer / macOS open, automatically translated under WSL)
• Reference files with @ in messages: the file context-menu item "Reference with @" inserts @workspace-relative-path into the chat input box; once sent, @relative-path mentions in the message render as hyperlinks (click to open a preview in the workbench). The syntax is @ + a workspace-relative path; any other @text is always displayed as-is and has no special meaning
• Drag files into the conversation: drag a file or a multi-selection from the left panel anywhere into the chat area and the path text is inserted at the input box cursor; dropping onto a directory row in the left panel is still a move operation
• Click anywhere to deselect: clicking anywhere outside the tree (conversation / other panels / left panel header) clears the selection
• Copy / cut / paste: Ctrl/Cmd+C/X/V (or the context menu), with cross-workspace paste support; when the target already contains an item with the same name you are asked whether to overwrite, just like the system file manager; the clipboard is cleared automatically after a successful cut (move)
• Batch operations: Ctrl/Cmd+click and Ctrl+A multi-select, delete selected items in bulk via the context menu or the Delete key, drag the whole group to move it
• Undoable operations: the "↩" button at the top right or Ctrl+Z undoes the most recent operation (kept per workspace, up to 30 entries): copy (removes the copy), cut/drag move (moves back to the original place), rename, create, delete; deletion is an undoable delete (files are moved instantly into a hidden .dsh-trash, no bytes copied)
• Reveal in file explorer: a context-menu item (equivalent to VS Code's Reveal in File Explorer) that locates the file/folder in the system file manager (Windows Explorer, macOS Finder, etc.), executed via the reveal endpoint of the loopback RPC
• Word wrap: one-click soft-wrap toggle in the tab bar (wrapping at the display layer only, file content untouched) or horizontal scrolling for long lines; the preference persists
• Tabs: multiple files, drag to reorder, collapse/pop out; one-click light/dark theme switching
• Syntax highlighting: highlight.js (JS/TS, Python, JSON, HTML, CSS, Shell, and more; Markdown renders a preview by default, switchable to source)
• Markdown rendering: markdown-it (raw HTML is always escaped, never executed); relative-path images are displayed inline via the same-origin route /dsh-plugin-files/raw/<path>
• Disk changes: the host watches open files with fs.watch (watching the parent directory, surviving atomic renames); changes are pushed over SSE at /dsh-plugin-files/events, and clean tabs sync automatically

Configuration

No environment variables or config files needed; the layout patch is fully automated (the plugin automatically detects and re-runs scripts/patch-layout.mjs at startup — idempotent, non-blocking; since 0.0.15 both build flavors of the same version are detected automatically — the npm build and the DSH Desktop bundled build; anchors are byte-coupled to the compiled output, so a DSH upgrade that breaks them requires anchor updates):

• Behavior preferences (word wrap, light/dark theme, tab layout, file tree expansion state) persist per workspace and need no manual configuration;
• File operation channel: via the loopback RPC /dsh-plugin-files; write operations are executed explicitly under danger-full-access, with no external configuration options.

Installation

Layout-patch anchors are byte-coupled to the DSH compiled output; a DSH upgrade that breaks them requires anchor updates. Since 0.0.15 both build flavors (npm / DSH Desktop) are detected automatically and the patch re-applies at startup (see the "Configuration" section for details).

# npm (recommended)
dsh plugin --profile web add dsh-plugin-workbench
# or GitHub
dsh plugin --profile web add github:Pasumao/dsh-plugin-workbench

Install from source (local development / debugging):

git clone https://github.com/Pasumao/dsh-plugin-workbench.git
cd dsh-plugin-workbench
pnpm install
pnpm run build     # produces lib/index.js and lib/client.js
# mount into the profile via link:

After installing, apply the layout patch and restart:

node node_modules/dsh-plugin-workbench/scripts/patch-layout.mjs
# restart dsh web

Since 0.0.9 the plugin automatically detects and re-applies the layout patch at startup — no need to run it manually after DSH upgrades; run the command above manually only if the automatic re-patching fails (broken anchors).

Development

pnpm install
pnpm run build       # produces lib/index.js (host) and lib/client.js (browser)
pnpm run typecheck

Uninstall

dsh plugin --profile web remove dsh-plugin-workbench
# optional but recommended: restore the layout bundle to the stock dsh file
node node_modules/dsh-plugin-workbench/scripts/patch-layout.mjs --restore
# restart dsh web

Skipping --restore is fine too: since 0.0.18 the layout patch is adaptive — the explorer column auto-collapses (width 0) whenever no plugin contributes to the explorer / explorer.preview slots, so an uninstall leaves no empty column behind. --restore simply returns the bundle to its pristine, unpatched state. The script has two safety guards: it refuses to restore when the target already looks like a newer pristine bundle (just-upgraded dsh) or when the backup belongs to an older dsh version (--force overrides).

Notes

• The /dsh-plugin-files RPC channel is loopback-only; write operations are executed explicitly under danger-full-access; the context menu's create/rename/delete go through the same channel too (loopback trust, same as saving in the editor); all HTTP routes mounted by this plugin (RPC / raw images / SSE) uniformly pass the connection-layer auth fence (connection.requestRejection, Host/Origin + browser auth checks)
• Image preview goes through the same-origin route /dsh-plugin-files/raw/<path>: it only responds to image extensions, resolves the path via ctx.fs.resolve → stat first (sandbox-consistent path resolution) before reading bytes, with a 20MB limit
• DSH upgrades overwrite the layout bundle; since 0.0.9 the plugin detects and re-applies the patch automatically at startup, so there is no need to re-run it manually; if the anchors break, scripts/patch-layout.mjs must be updated (since 0.0.15 the anchor table carries two build variants auto-detected per target — npm and desktop-ci, the latter stored in scripts/layout-anchors.desktop-ci.json)
• This repository does not include DSH build artifacts

Contributing

See CONTRIBUTING and CODE_OF_CONDUCT; the changelog is in CHANGELOG.

Compatibility

• Tested on DSH 0.1.2-rc.1 (since 0.0.16 the layout patch anchors are adapted to that version: the detailsCol border style changed from 1px/--dsw-alias-border-l2 to .5px/--dsw-alias-border-l3, and the DetailsColumn children gained a SessionProvider wrapper); for 0.1.1-rc.2 and earlier, use the 0.0.15 anchor table.
• Since 0.0.9 the plugin re-applies the layout patch automatically at startup, so DSH upgrades normally need no manual action; on anchor mismatch the startup log shows ui-layout patch exited 1 — upgrading this plugin fixes it.

Related plugins

This plugin is part of Pasumao's dsh plugin ecosystem; the published plugins in the same series can be used alongside it:

For the remaining plugins in the series, see Pasumao · dsh plugins; if you find them useful, a ⭐ on GitHub is always welcome.

AI generation statement

Part of the source code and documentation was generated with AI assistance (DeepSeek Harness) and has been human-reviewed and verified on a live system; permission-related logic has been re-reviewed against the principle of least privilege.

License

MIT