DeepSeek Harness Desktop for macOS and Windows
DeepSeek has released a public preview of its open-source 'Harness' desktop application, which utilizes a plugin-based architecture for AI agents. The tool allows users to automate tasks and extend agent capabilities through a 'Creator mode' that generates plugins via chat.
Why it matters
It represents the growing trend of modular, agentic AI workflows that allow users to customize their local computing environments.
Preview DeepSeek Harness Ready to use . Right now . Everyday tasks, coding, or your own harness—it starts here.
DeepSeek Harness is now in public preview worldwide and open source, with composable plugins that extend what agents can do.
Download Desktop New Session Plugins Automation Workspace Default workspace Meet DeepSeek Harness Q3 summary slides Review prep Sales report Data analysis DSH plugin dev DeepSeek Meet DeepSeek Harness Could you introduce yourself? Thought for a while I'm DeepSeek Harness, an open-source harness from DeepSeek built on Cordis 's “everything is a plugin” architecture. Run me as a desktop app or launch the web UI from code.
Workspace Write DeepSeek-V41-Flash High Expanding capabilities . Work on your terms . Everything is a plugin Install plugins, or create them through chat in “Creator mode”, to extend tools, skills, and the interface.
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