dsh-workspace-ide

A VS Code-like workspace panel plugin for DeepSeek Harness (DSH): browse the workspace, search it, and read its git state without leaving the conversation.

Surface	What it does
Files	Lazy directory tree for the whole workspace, resizable split, line-numbered syntax-highlighted code viewer with git change marks in the gutter, clickable breadcrumbs, soft-wrap (Alt+Z), go-to-line (Ctrl/Cmd+G), in-file find & replace (Ctrl/Cmd+F / Ctrl/Cmd+H, case/whole-word/regex, all-match highlight), quick open (Ctrl/Cmd+P), multi-tab editing with per-tab drafts and unsaved-change guards (Ctrl/Cmd+W closes), back/forward navigation (Ctrl/Cmd+Alt+←/→) a JetBrains-style status bar and editor zoom (Ctrl/Cmd+= / -, Ctrl/Cmd+0 resets), inline editing with Ctrl/Cmd+S save, selection-aware Tab indentation, Ctrl/Cmd+D duplicate-line, Alt+Shift+↑/↓ move-line, Ctrl/Cmd+Shift+T reopen-closed-tab, bracket matching / auto-pair / smart indent / indent guides / current-line highlight and Cmd/Ctrl+/ comment toggling, rendered Markdown preview with source toggle, image / SVG preview, large-file/binary guards
Search	Full-text workspace search with case / regex / whole-word toggles and an include filter; hits are grouped per file, highlighted, and jump straight to the matching line in the viewer
Git	Current branch with ahead/behind, staged / unstaged / untracked / conflicted groups with colourised unified diffs, and a commit history with per-commit diffs; a non-git workspace lists other git workspaces for one-click switching

Colour themes

The panel ships the mainstream VS Code palettes and switches between them without touching the rest of the DSH UI:

Selection	Palette
Follow DSH theme (default)	the live --dsw-alias-* values, so it matches the app light/dark theme
Dark+	VS Code's default dark palette
Light+	VS Code's default light palette
One Dark Pro	Atom's One Dark
Dracula	the official Dracula palette
GitHub Dark	GitHub's dark palette
Solarized Light	Ethan Schoonover's Solarized Light

All screenshots in this README are rendered from a synthetic demo workspace (aurora-dashboard) with mock files, git history and diffs — never real user data. They are generated reproducibly by scripts/screenshots/build-screenshots.py, which mounts the real client bundle against a stubbed fetch layer.

Each theme is a table of --dsw-alias-* custom-property overrides scoped to the panel root; every surface (tree, editor gutter, search highlights, git diff colours, scrollbars) follows the selection, and the choice is remembered in localStorage. The toolbar glyphs are borderless — an inactive tab is just the icon, the active tab is a rounded background, and the focus ring appears only for keyboard navigation.

Syntax highlighting

The editor colours code with a small, dependency-free highlighter written for this panel — no Shiki/Prism bundle and no extra runtime dependency (the whole browser half still only requires react). It covers every language the Host reports: JavaScript / TypeScript / JSX / TSX, JSON, Markdown, CSS, HTML/XML, Python, Go, Rust, Java, Kotlin, Swift, C/C++, C#, Ruby, PHP, Shell, PowerShell, YAML, TOML, INI, SQL, GraphQL and the tag level of Vue/Svelte; unknown files and files over 300 KB fall back to plain text for rendering speed.

Token colours follow the selected palette: Follow DSH theme inherits the app's own --shiki-token-* colours (so it matches the surrounding light/dark UI), and each VSCode theme ships its own keyword / string / comment / number / function / type / variable table.

The editor stays editable while highlighted: a transparent-text textarea sits over the syntax-coloured layer, with caret, selection, both scroll axes and the line-number gutter kept in sync. Read-only previews reuse the same coloured rendering.

Editing keeps the VSCode muscle memory: Cmd/Ctrl+/ toggles comments for the current line or every selected line (the per-language token table covers //, #, --, ; and /* */ / <!-- --> block wrapping for CSS, HTML, XML, Markdown, Vue and Svelte), and the toggle is reversible, indent-preserving and leaves blank lines untouched.

Editor: JetBrains-style workflow

Beyond editing and saving, the viewer follows the interactions JetBrains IDEs made standard:

• Find & replace (Ctrl/Cmd+F / Ctrl/Cmd+H) with match counter, previous/next, case / whole-word / regex toggles, Replace and Replace All, and a highlight layer that paints every match behind the text.
• Quick Open (Ctrl/Cmd+P) ranks the whole workspace file index locally with a fuzzy subsequence score; Go to Symbol (Ctrl/Cmd+Shift+O) jumps to functions, classes, types, constants and (in Markdown/JSON) headings or keys in the current file (Alt+↑/↓ walks symbols; the header shows the enclosing symbol); Recent Locations (Ctrl/Cmd+Shift+E) reopens any earlier file:line, bookmarks (F11 / Shift+F11) mark and revisit lines, and case toggle / join lines round out the editing shortcuts.
• Tabs keep one tab per open file with dirty markers; unsaved drafts and carets survive tab switches, and closing a dirty tab asks before discarding.
• Bracket matching / auto-pair / smart indent / current line / indent guides make the same gestures feel native: matched brackets highlight, openers auto-close, Enter inherits indentation, and Shift+Tab outdents.

Markdown preview

.md files switch between editable source and a rendered preview from the file header, or with Cmd/Ctrl+Shift+V. The preview is built from React elements — never injected HTML — and covers headings, fenced code blocks (highlighted by the same engine, in the selected theme), ordered/unordered and task lists, blockquotes, GFM tables, links, images and rules; javascript:/data: URLs are dropped. It renders the current draft, so unsaved edits preview immediately, and read-only/oversized Markdown files still preview.

Images and SVG

Raster images (PNG, JPEG, GIF, WebP, BMP, ICO, AVIF) open in a centred preview over a checkerboard surface, with the file's natural dimensions and size in the status bar. SVGs get both a rendered preview and editable source, switchable with the 图片 / 源码 toggle or Cmd/Ctrl+Shift+V; the preview is rendered from the current source, so editing the SVG updates the picture immediately. Image bytes come from a dedicated Host route that verifies every file against its magic number and caps reads at 8 MiB.

The panel opens from the left rail (工作区 / Workspace, next to Plugins, Scheduled tasks, Usage stats). The three-icon strip at the top switches between Files / Search / Git — the file-copy, list-search and git-branch activity icons. The workspace picker on the right follows the session the app is currently viewing, and a manual pick sticks for that session.

Install

From a DSH session, install the bundle from this directory with the plugin manager (absolute path required):

plugin_manager {
  action: "install_bundle",
  target: "/absolute/path/to/dsh-workspace-ide"
}

The bundle is profile-wide and survives restarts. application: "applied" in the result means it activated immediately; client-side changes are picked up by DSH's client HMR, host-side changes load on the next Host start.

Or install straight from GitHub instead of a local checkout:

plugin_manager { action: "install_bundle", target: "echoVic/dsh-workspace-ide" }
# or pin a release tarball:
plugin_manager { action: "install_bundle", target: "https://github.com/echoVic/dsh-workspace-ide/archive/refs/tags/v1.0.0.tar.gz" }

How it works

• Host half (lib/index.js, lib/host/*.js): registers nine authenticated fetch routes through ctx.connection.fetch.register — workspaces, list, files, file, image, search, git, save, ping. Filesystem access is path-checked (absolute paths, .. escapes, symlink escapes and roots outside known workspaces are rejected); everything is read-only except save (atomic overwrite of an existing regular file only) and ping (one diagnostic line in $DSH_HOME/workspace-ide/status.jsonl, used by the client to prove it executed). Git runs through child_process.execFile with bounded output; a non-repository root is a normal answer, not an error.
• Client half (lib/client.js, generated from src/client/*.js + compiled TypeScript fragments by scripts/build-client.mjs): one window.__ModuleLoader__.load(...) browser module that registers a sidebar.panellist icon and the matching keyed main panel. It only uses require('react'), the --dsw-alias-* theme tokens (dark and light), a built-in zh/en dictionary, and the DSH frame's --dsh-frame-* chrome insets; the page is wrapped in an error boundary. The panel follows the viewed session's workspace via the slot kit's useWorkspaces hook, and falls back safely when that hook is absent.
• Icons: the whole toolbar/tree/git/theme icon set is the open-source Lucide set (ISC, with Feather-derived glyphs under MIT). Its SVG node data is vendored at authoring time in src/client/05-icons.ts — no runtime icon dependency — and renders through one factory so every glyph shares the 24px grid, round caps and currentColor stroke. Licenses: THIRD_PARTY_NOTICES.md, licenses/lucide-LICENSE.txt.

Development

npm ci                                 # dev-only tooling: TypeScript type checker
npm run typecheck                      # tsc --checkJs, strict, over lib/ + src/client + scripts + tests (no emit)
npm run typecheck:host                 # lib/ additionally under noImplicitAny (see tsconfig.host.json)
npm run typecheck:client               # all client sources under noImplicitAny (tsconfig.client.json)
node scripts/build-client.mjs          # rebuild lib/client.js from src/client/ (.js + compiled .ts)
node scripts/build-client.mjs --check  # fail when lib/client.js is stale
node --check lib/client.js
node --test test/host/                      # Host route unit tests (node:test, 118)
node test/smoke/client-smoke.mjs            # headless client module/face smoke test (43 checks)
node --test test/review/*.test.mjs          # independent adversarial + contract suites (78)
python3 scripts/screenshots/build-screenshots.py   # rebuild docs/ screenshots (mock data)

TypeScript is used only as a dev-time type checker: sources stay plain JavaScript with JSDoc annotations, and tsc --noEmit --checkJs checks lib/, src/client/, scripts/ and the tests with strict: true (the one deferred strict flag is noImplicitAny, see CONTRACT.md). types/client-globals.d.ts declares the shared factory scope and the React element alias; types/dsh-services.d.ts declares the optional Host context/services. There is still no client bundler, no build step for the Host and no runtime dependency — npm ci installs typescript, @types/node and @types/react into devDependencies only.

The client half is authored in TypeScript: script-style fragments in src/client/*.ts compiled by tsc into build/client-parts/ (never shipped, git-ignored) and concatenated into one plain script — still no bundler, and lib/client.js keeps its exact loader contract.

lib/client.js is served directly by the Host and DSH's client HMR watches installed bundle artifacts, so saving a rebuilt lib/client.js updates an open Harness page without a restart.

Layout

lib/index.js             Host plugin entry (`apply`, `inject`, `name`)
lib/host/                filesystem / search / git route implementation
lib/client.js            built browser module (committed)
tsconfig.json            dev-only type checker config (allowJs + checkJs, strict, no emit)
tsconfig.host.json       Host-only config adding noImplicitAny
tsconfig.client.json     all client sources under noImplicitAny
types/                   ambient declarations: client factory scope + Host context/services
src/client/              browser sources (TS): core, icons (vendored Lucide), highlighter,
                         shell, files, search, git, module face
THIRD_PARTY_NOTICES.md   icon license attribution
licenses/                full third-party license texts
scripts/build-client.mjs  concatenating build + staleness check
test/host/               node:test suites (122 tests)
test/smoke/              headless client-module smoke test (43 checks)
test/review/             independent adversarial + client-contract suites (78 tests)
docs/                    screenshots

Changelog

Release history and feature milestones: CHANGELOG.md.

License

MIT © 2026 echoVic.

The vendored Lucide icon set (and the Feather-derived glyphs inside it) keep their own licenses — full texts and attribution are in THIRD_PARTY_NOTICES.md and licenses/.