dsh-webchat

Opens the official chat.deepseek.com web app from inside DeepSeek Harness: one sidebar entry, and clicking it opens the official page directly.

It no longer reimplements the chat UI. The official web app is the client — model picker, deep think, smart search, history and attachments all live there. This plugin opens it and nothing else.

Why a window, and not a pane

Both embedding routes are closed, and that is a measurement rather than a choice:

chat.deepseek.com answers with Content-Security-Policy: frame-ancestors 'none', so no iframe can host it;
the desktop build runs both windows with webviewTag: false and blocks will-attach-webview, so `` is unavailable too.

A real window is therefore the only faithful way to show the official page.

What opens, in order

Clicking the entry tries these in order and reports which one worked in a short toast:

app-window — a window created by the DSH desktop process itself (the desktop app is Electron). An already-open one is focused instead of duplicated.
app-window-shell — a chromeless Edge/Chrome window (--app=) with its own --user-data-dir (~/.dsh/dsh-webchat/app-window), so its login stays separate from your everyday browser. Used when the host refuses (1).
system-browser — handed to the OS default browser, so the button always does something.

Install

dsh plugin --profile desktop add @jaychang1989/dsh-webchat

Or straight from this repository:

dsh plugin --profile desktop add github:jaychang1989/dsh-webchat

The npm package is scoped because the unscoped dsh-webchat name belongs to the unmaintained upstream project. The scope does not change the plugin's identity: the entry id stays webchat.

Switching from upstream, or from this plugin's 0.3.x: all of them insert the same id: webchat row, and one profile cannot hold the same entry id twice — boot fails on the duplicate. Remove the old package first, then add this one, then restart the desktop app.

Use

Click the "DeepSeek 网页 / DeepSeek Web" entry in the sidebar — the page opens directly, there is no second click.
Sign in once in the window it opens; afterwards just use the official web app.

A toast in the corner reports the outcome: 已打开 DeepSeek 网页 / 已交给系统默认浏览器打开 / a failure reason (an HTTP 404 usually means the host half is still an older version — restart the desktop app).

Difference from 0.3.x — this release deletes most of the plugin

0.3.x	0.4.0
Drove the page with Playwright and re-rendered messages in a custom panel	Does not drive the page; opens it. Custom panel removed
Five agent tools (`webchat_status/send/recover/import/transfer`)	All removed
"Transfer to Harness", "recover from web", "import", "export"	All removed
Local transcript store at `~/.dsh/dsh-webchat/transcripts.json`	Removed (only the window profile directory remains)
Fifteen `/api/dsh-webchat/*` routes	Two: `state` and `open`
Depended on `playwright-core`; the client half needed React and a bundler	No runtime dependencies; plain-DOM client, no build step
~3800 lines of build output	~700 lines of hand-written JS

Requirements

DeepSeek Harness 0.2.0-rc.1 or a newer 0.2.x
Node.js >= 22
Strategy 2 needs Edge or Chrome installed; strategy 1 does not

Limitations

The DeepSeek web front end applies its own rate limiting; the plugin hands the page over and does not mediate its login or requests.
A strategy-1 window is owned by the DSH process: if you close the DSH main window while it is still open, DSH will not quit (Electron's window-all-closed). Close that window too.
Reloading the plugin does not close a window that is already open, so a settings change cannot close the conversation you are reading.

Development and tests

node --test        # 11 cases: host routes, window-strategy selection, and the browser half mounted into a DOM stand-in

There is no build step: lib/index.js and lib/client.js are the hand-written runtime. See MAINTAINING.md.

License

Apache-2.0. Original copyright belongs to the authors of xmuwenxiang/dsh-web-chat; see NOTICE.

@jaychang1989/dsh-webchat

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