DeepSeek Harness saves pages into your Showspace from its local Web UI, and it can use all twenty of the app's commands.
DeepSeek Harness, or dsh, is DeepSeek's open-source agent runtime. Models, tools, skills and even the interface are plugins you can swap, so it suits developers who like to configure and extend their tools.
On a Mac it runs as a Node.js process with a Web UI in your browser. Before a session starts you choose a workspace folder, and the agent reads, edits and runs commands there.
Made byDeepSeek
Runs onmacOS, through Node.js 22.19.0 or newer within version 22, or Node.js 24 and later
Where pages goInto the workspace folder you choose on your Mac
App commandsYes, all twenty
CostFree and open source; you add a model API key, such as a DeepSeek key
Also calleddsh, DSH Web UI
Set it up
Start the Web UI with the line below, open http://127.0.0.1:3080 in your browser, and add a DeepSeek API key under Settings, then Models.
In lite.computer, click the account button at the bottom of the sidebar (it reads Free trial until you buy), choose Agent Helper, and copy the Setup prompt. Paste it into DeepSeek Harness. It remembers where your Showspace is and tries to connect to lite.computer, then tells you whether the connection works now or only from your next conversation. It asks before each step and tells you when it needs your help. If you would rather DeepSeek Harness check first, ask it to read lite.computer/setup instead.
Keep lite.computer open on your Showspace, start a new DeepSeek Harness session and ask Use the lite.computer tool to list every page in my Showspace. It lists the pages in your folder.
Run in a terminal
npx @deepseek-ai/dsh web
Try this prompt
Here is a starter prompt. How well it works depends on how your AI is set up, so adjust it to fit yours.
Paste into DeepSeek Harness
Read the HTML pages in my Showspace and build an interactive catalog: a searchable list grouped by topic, expandable summaries, and an animated chart of how many pages are in each group. Save it as a single self-contained HTML file named showspace-catalog.html in my Showspace, then open it in lite.computer.
Good to know
DeepSeek's scheduling patch adds scheduled work. Turn it on and keep the harness running with the session open, and a regular report lands in your Showspace on its own.
We have not tested DeepSeek Harness with lite.computer ourselves. These instructions are based on research. Try saving one HTML page to your Showspace first. If a step needs correcting, email hello@lite.computer.
Questions
Does DeepSeek Harness work with lite.computer?
Yes. Running on your Mac, it saves HTML pages into your Showspace, and lite.computer shows each one as it lands. Once connected, it also opens pages and arranges windows in the app.
How do I run DeepSeek Harness on a Mac?
Run npx @deepseek-ai/dsh web in a terminal and open http://127.0.0.1:3080 in your browser.