DeepSeek Harness plugin: DeepSeek official open source 250,000-star "Everything Plugin" agent framework, an npx command runs the local web consoleDeepSeek Harness 插件：DeepSeek 官方开源 25 万星「万物皆插件」智能体框架，一条 npx 命令跑起本地 Web 控制台

DeepSeek Harness is DeepSeek's official open source agent harness (running dock) in 2026, with the slogan straightforward: Everything is a Plugin.

It is built on top of Cordis - an engineering implementation of the spatio-temporal composable programming paradigm (arXiv: 2608.25512) published by the DeepSeek team, with services, events, and lifecycles all plugged in.

The project uses the mit license and is written in the main repository TypeScript. It is currently in the developer preview stage of rapid iteration, and the official clearly indicates that there will be destructive changes in the future.

In the traditional agent framework, tool calls, memories, and interfaces are often written in the core; in dsh, they are all equal plug-ins that can be installed, replaced, and combined separately.

The official maintains the dsh-plugin theme tag ecology. Developers can be discovered by the community by tagging their plugin repositories, forming a distribution model similar to the app store.

Meaning for ordinary users: You do not need to write code, and you can add capabilities to the agent by installing the plug-in - connecting to the web UI, connecting to the terminal, and connecting to file management are all plug and play.

There is only one prerequisite: installing Node.js (18 + recommended).

Execute npx @ deepseek-ai/dsh web, the command will automatically pull up the local service and open the browser, the default address is http://127.0.0.1: 3080, plus --no-open can only start without opening the browser.

Advanced users can also clone the source code and run it from the source code with pnpm install & & pnpm run build, or check the official documentation site deepseek-harness.github.io for plugin development.

The download button provides the npm official repository @ deepseek-ai/dsh version 0.2.0-rc.2 installation package (tgz format, only 0.02 MB), which can be installed by npm install this file or directly npx online.

It is recommended to read the official SAFETY.md safety instructions before running; the project iterates quickly and officially uses the recommended lock version number.

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