dsh-file-panel

A plugin for DeepSeek Harness (dsh web GUI) that watches what the agent creates and downloads during a session, and shows it in a right-side popup panel — like the file viewer in Codex.

When a file or image is written to disk during a session, the panel pops up automatically on the right. Every row lets you:

• 👁 Preview — images render inline; text files show their first 256 KB; other types show metadata.
• 📂 Show in folder — opens the OS file manager with the file selected (explorer.exe /select on Windows, open -R on macOS, xdg-open on Linux).
• ↗ Open — opens the file with the OS default application (via the harness's built-in host.openPath RPC).
• 📋 Copy path — copies the absolute path to the clipboard.

Also ships a workspace folder shortcut at the bottom of the panel.

中文说明

Screenshots

The right-docked session files panel: every row previews, opens, reveals, or copies its path; the bottom button opens the session's working directory. The panel is fully draggable (grab the header) and resizable from its left and bottom edges, with scrollbars appearing when it gets narrow.

Installation

Requires DeepSeek Harness dsh CLI (npm package @deepseek-ai/dsh) and pnpm.

From a local checkout

cd dsh-file-panel
npm install          # installs esbuild (dev-only)
npm run build        # produces lib/index.js + lib/client.js (committed)

# register in the web profile (link: tracks your checkout live)
dsh plugin --profile web add link:.

From GitHub

dsh plugin --profile web add github:yu2025-luo/dsh-file-panel

The built artifacts are committed, so no build step runs during install.

Activate

Restart the dsh web server (plugin sets take effect on restart), then refresh
http://127.0.0.1:3080. That's it — no configuration required.

Remove with:

dsh plugin --profile web remove dsh-file-panel

Usage

Gesture	Result
Agent creates/downloads a file	Panel pops up automatically (newest files carry a NEW chip)
Click a row	Inline preview (image / text / metadata)
Row hover actions	Preview, open, show in folder, copy path
🔔 bell	Toggle auto-pop for new files
– / ×	Collapse to a floating launcher button (with new-file badge) or hide
Bottom "open workspace folder"	Opens the session's working directory

Panel state (open/collapsed) and the auto-pop preference persist in
localStorage. The auto-pop baseline is per session: files that already
existed when the panel first saw the session do not re-trigger a popup.

How it works

One npm package with two halves, registered as a single loader row
(cordis.patch.yml → row file-panel):

Host half (src/index.js)                     Browser half (src/client.jsx)
────────────────────────                     ──────────────────────────────
ctx.on('fs/observed')          ──┐
  write/edit tools report        │            shell.overlay slot entry:
  files (precise, attributed     │            a right-docked floating panel
  to the session)                ├──▶ FileTracker (per-session lists,
recursive fs.watch per           │      ignore rules, caps, fence)
  session working directory       │                │
  (catches shell downloads:    ──┘                ▼
  curl, Invoke-WebRequest, …)          RPC channel /file-panel
                                        authority: 'loopback'
                                        list · readText · readImage
                                        reveal · describe
                                                  ▲
                                                  │ poll every 1.5 s
                                        client: ctx.connection.rpc.call()
                                        open file: built-in api.host.openPath

The client half registers into the shipped shell.overlay slot (additive,
frame-wide floating layer), reads the current session through the standard
useSessions prop, and polls the plugin's own loopback-only RPC channel.
The channel is registered with ctx.connection.rpc.handle, the sanctioned
static-package RPC seam.

Security

• The /file-panel channel is registered with authority: 'loopback', so
  only pages served from 127.0.0.1 can call it. When the GUI is accessed
  over the network (--trusted-host), the panel shows a notice and stays
  inactive.
• Every read/reveal endpoint only accepts absolute paths that the tracker
  has actually seen (a tool write or a watcher event under a watched working
  directory) — the RPC can never be used as a generic file-read/reveal
  primitive.

Project layout

src/
  index.js      host half: tracker wiring + /file-panel RPC endpoints
  tracker.js    pure-Node file tracker (fs/observed ingestion, recursive
                watcher with debounce, ignore rules, caps, RPC fence)
  client.jsx    browser half: the right-side panel UI (React, JSX)
build.mjs       esbuild build for both halves
cordis.patch.yml  the bundle patch inserting the loader row
tests/          node:test unit + host-half smoke tests
lib/            built artifacts (committed, so installs need no build step)

Development

npm install
npm run build   # rebuild lib/index.js and lib/client.js
npm test        # node --test

For a fast client-side iteration loop after changing src/client.jsx:

npm run build

then hard-refresh the GUI page (lib/client.js is served with
cache-control: no-cache; plugin sets only change on restart, but bundle
content re-hashes per request — see dsh-client-modules). During active
UI development you can also run pnpm run dev:web from the harness checkout
to rebuild client bundles on change.

Compatibility

Built against the public seams of @deepseek-ai/dsh 0.1.0-rc.x:

• host: ctx.connection.rpc.handle / ctx.on('fs/observed')
• client: shell.overlay slot, useSessions standard prop,
  ctx.connection.rpc.call, ctx.locale

DeepSeek Harness is pre-release: those seams may move. If the panel stops
working after a dsh upgrade, check the pinned version in
package.json and re-run the build.

Known limitations

• The recursive watcher uses fs.watch({ recursive: true }) (Node ≥ 20).
  On platforms where that is unavailable, the panel still tracks everything
  the harness write/edit tools produce, but shell-side downloads may be
  missed.
• The panel is process-local: it starts empty after a restart (it only
  records files it actually observed; it does not scan history).
• node_modules, .git, and temporary-file noise are ignored by design.
• reveal on headless Linux reports canReveal: false and hides the
  button (no desktop to open).

Publishing to GitHub / npm

1. Create a GitHub repo and push (the repo is already a git repository with
   a v0.1.4 tag):

   git remote add origin https://github.com/yu2025-luo/dsh-file-panel.git
   git push -u origin main --tags
   

2. Add the dsh-plugin topic on the
   repo page (About → gear icon → Topics) together with
   deepseek-harness, dsh, deepseek, and file-preview. The repo then
   appears on the public plugin topic page automatically.

3. Users install with
   dsh plugin --profile web add github:yu2025-luo/dsh-file-panel#v0.1.4.

4. Optionally publish to npm (npm publish) — then install with
   dsh plugin --profile web add dsh-file-panel.

Community catalogs that sync from the dsh-plugin topic:
Oh-My-DSH (auto-synced) and
awesome-deepseek-harness
(PR-based).

Remember to bump the version and re-run npm run build before releasing.

License

MIT