DeepSeek Harness Desktop Plugin Guide: Best Picks

The DeepSeek Harness desktop plugin system is what makes this harness different from every other agent I use — literally everything is a plugin, and v0.2 adds a proper plugin manager to the desktop app. DeepSeek says around 60% of users now run third-party plugins. I tour the plugin library in the video below. Here’s how plugins work, the built-ins worth switching on, and how to add more.

Key takeaways

v0.2 adds a plugin manager to the desktop app.
Built-ins include web search, sub-agents, agent loops, shell, voice input and automation.
Install more with the bundled dsh command — no Node needed.
Build your own in Creator mode.

How the DeepSeek Harness desktop plugin system works

DeepSeek Harness is built on an “everything is a plugin” architecture — the model, memory, tools and even the agent loop are swappable. The desktop app’s plugin manager lists what’s installed and lets you switch each on or off, and the bundled dsh command (managed from the menu bar) installs new plugins without a separate Node or pnpm setup.

The built-in DeepSeek Harness desktop plugins to enable

Plugin	What it does
Automation tasks	Scheduled, recurring jobs that run in the background — off by default
Agent teams	Multiple agents working together on a task
Voice input	Talk to the agent instead of typing
Review	Decide whether code changes apply automatically or need your approval
Web search	Lets the agent search the web
Sub-agents and agent loops	Delegate work and run multi-step loops
Shell	Run commands on your machine

My favourite is automation: set “every Monday, build a slide deck on the latest AI automation news” and it just happens.

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Adding third-party DeepSeek Harness plugins

Browse the dsh-plugin topic on GitHub or the curated awesome list (around 18K stars), sorted by category: memory, UI, models and providers, themes.
Install with the bundled dsh command, then refresh the plugin manager.
Build your own in Creator mode — I’ve built a to-do list plugin that tracks the agent’s steps as it codes.

A plugin marketplace is on DeepSeek’s roadmap, which should make discovery easier.

Plugins run code on your machine. Install from authors you trust, read what they do, and keep private data out of the harness.

The bottom line on the DeepSeek Harness desktop plugin system

The DeepSeek Harness desktop plugin manager turns an already flexible harness into something you can shape completely: switch on automation, agent teams and voice, add community plugins with the bundled dsh command, and build your own in Creator mode.

What I’d set up first

A free model through OpenCode or OpenRouter, so testing costs nothing.
Creator mode, so you can customise plugins as you go.
One scheduled task — a weekly report or deck — to see automation working.
Voice input, if you like talking through tasks.

Plugin ideas for DeepSeek Harness desktop

Here are the plugin setups I’d try first, all buildable with the built-ins or the community list:

Weekly AI news deck: automation task plus web search, building a slideshow every Monday.
Step tracker: a to-do list plugin that logs what the agent is doing as it codes — I built one of these.
Voice coding: voice input plus agent teams for hands-free building.
Project memory: a community memory plugin so the agent remembers your project context.
Custom themes: appearance plugins to make the interface your own.

Pair any of them with a free model:

Provider	Why use it
OpenCode	Free custom models with just an API key — my go-to for zero-cost coding
OpenRouter	A wide catalogue, including free models, on one key
DeepSeek	DeepSeek’s own models plugged straight in — I ran DeepSeek V4.13 in my test

What’s coming next for DeepSeek Harness

DeepSeek’s roadmap for the harness points to an even more capable desktop experience. Here’s what’s planned:

Stronger sandbox and security for running agents on your own machine.
Better agent teams, so multiple agents coordinate more smoothly.
Personalised long-term memory that remembers you and your projects.
GUI and browser automation — I wouldn’t be surprised to see a cloud computer like Grok Bot or Dots.
Mobile access, so you can direct your agents from your phone.
A plugin marketplace for finding and installing plugins in one place.

FAQ: deepseek harness desktop plugin

Is the DeepSeek Harness desktop app free?

Yes — the app and the harness are free and open source (MIT). You pay only for the models you connect, and you can use free models through providers like OpenCode or OpenRouter.

Is DeepSeek Harness safe for private data?

It runs locally, but it’s built by a Chinese company, so I keep private client data out of it. The desktop app is also still labelled a preview.

How do I install DeepSeek Harness desktop plugins?

Use the bundled dsh command (managed from the menu bar) and refresh the plugin manager.

Which plugins come built in?

Automation tasks, agent teams, voice input, review, web search, sub-agents, agent loops and shell.

Where do I find more plugins?

The dsh-plugin topic on GitHub and the curated awesome list.

Can I build my own plugin?

Yes — use Creator mode.

Two ways I can help from here. Join the AI Profit Boardroom — it’s where your DeepSeek Harness plugins gets built with 3,400+ members doing the same.

Or grab a free strategy session and bring your questions.