Deep Browser

A DeepSeek Harness plugin that opens http(s) pages in the right sidebar, beside the conversation.

This is the set that the current Web profile can host honestly:

• New tab, address bar, reload, open in the system browser
• Width presets (Fit / 390 / 768) — CSS layout of the iframe, not device UA emulation
• Click an http(s) link in the UI (without a modifier key) to open it here
• Local localhost / loopback URLs as http://

It does not fake Chromium features the web profile cannot provide: zoom, cookies, cache, annotate, prefers-color-scheme, or agent drive. Those need a Desktop browsing-context seam.

Workspace files stay in Document Preview. This pane is for live URLs.

Settings (Plugins tab)

The plugin registers a deep-browser settings namespace, so it shows a card in the web settings Plugins tab with two settings, both applied live:

• Default page width (Fit / 390 / 768) — the width new tabs start with. Per-tab pills in the pane still override it for that tab.
• Open links beside the conversation — whether plain-clicking an http(s) link opens it in the Browser tab. Modifier-click always uses the system browser.

Install from GitHub

dsh plugin --profile web add github:temidayoxyz/deep-browser

A git install fetches sources, not built artifacts, so pnpm builds lib/ via the package's prepare script. pnpm ≥10 refuses to run a git dependency's build until it is explicitly allowed, so if the first add fails, copy the exact package key pnpm printed into the profile's pnpm-workspace.yaml:

allowBuilds:
  dsh-deep-browser: true

and re-run the add. Only allow packages whose source you trust, and consider pinning a commit (github:temidayoxyz/deep-browser#).

Run against a local Harness checkout

pnpm install
pnpm build

From the Harness repository:

pnpm dsh web --patch D:/Codebase/deep-browser/overlay.yml --no-open

Open the printed URL, expand the right sidebar, and pick Browser — or click an http(s) link in chat (plain click; Ctrl/Cmd-click still uses the system browser).

Install into a profile:

dsh plugin --profile web add D:/Codebase/deep-browser