DeepSeek put its agent on your desktop and opened the code.
DeepSeek announced Harness on Friday, a desktop app for coding, documents and scheduled jobs. It runs on Mac and Windows, costs nothing, and ships under a permissive licence. Every capability is a plugin, so users can add their own tools through chat.
Why it mattersA frontier lab giving away its whole agent shell is still unusual. You can inspect every tool call instead of trusting a closed app.
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