dsh-width-tiers

A client plugin for the DeepSeek Harness Web GUI that adds chat content
width tiers with a floating picker button (bottom-right, above the
composer): 标准 / 中等 / 宽 / 超宽 / 全宽 (standard / medium / wide / ultra /
full).

Why

The DSH Web app hard-codes a readable content width on the conversation root
(--dsh-chat-content-width: 748px). That caps the message column — and every
table inside it — at 748px no matter how wide your window or panels are,
so wide tables always need horizontal scrolling.

This plugin overrides that variable per tier:

The choice persists in localStorage and is restored on the next visit; the
menu highlights the current tier, and the button's five level-bars show it at
a glance.

Install

dsh plugin --profile web add dsh-width-tiers

Then register it as a loader entry in
~/.dsh/profiles/web/cordis.patch.yml:

- insert:
    - id: dsh-width-tiers
      name: dsh-width-tiers

Restart dsh web (the plugin loads at boot) and hard-refresh the page
(Ctrl+Shift+R). A round button with five bars appears at the bottom-right.

Installing from a local checkout: dsh plugin --profile web add file:/path/to/dsh-width-tiers.
Local-development gotcha: file: dependencies are copied into the
profile's node_modules (pnpm does not symlink them). After editing the
plugin source, re-sync the copy (e.g. rsync -a --delete --exclude .git /path/to/dsh-width-tiers/ ~/.dsh/profiles/web/node_modules/dsh-width-tiers/)
or re-install after removing it, then restart dsh web and hard-refresh.

Usage

• Click the round button → pick a tier; the current one is highlighted.
• full collapses the sidebar to the icon rail through the app's own toggle
  — it is never force-hidden or locked: click a rail icon any time to expand
  it, and it stays expanded.
• Non-standard tiers also close the details panel (re-closed automatically if
  reopened); standard leaves everything to the app.

Language

All picker copy (tier labels, button aria-label and title) follows the
app's Settings → Language (中文 / English), through the app's own locale
service. Switching the language re-renders the button and menu immediately;
when no explicit language is chosen the app falls back to the browser's
language, and Chinese is the last resort. No plugin-side setting needed.

How it works

• The element that defines --dsh-chat-content-width is located at
  runtime (the first element whose computed value is non-empty) and the
  tier is applied as an inline override — no hashed class names, so it
  survives bundle upgrades.
• Panels are driven through the layout service (ctx.layout), never by
  simulating clicks.
• The sidebar is only ever collapsed by the full tier; returning to
  standard restores it only if this plugin collapsed it.
• Dictionaries are registered with the app's locale service
  (ctx.locale.register / bind) and re-rendered through its change
  subscription, so the copy always matches the app's active language.

Limitations

• Content width cannot exceed the window: on a narrow window, wider tiers are
  capped by the available column. Use full (which also collapses the
  sidebar) for the maximum.
• Requires the DSH Web client plugin system (dsh ≥ 0.1.0-rc.x with a web
  profile).

Uninstall

dsh plugin --profile web remove dsh-width-tiers

Remove the dsh-width-tiers row from ~/.dsh/profiles/web/cordis.patch.yml,
then restart dsh web.

License

MIT — see LICENSE. Copyright (c) 2026 aaronlei.