DeepSeek Harness is in worldwide public preview under MIT, with desktop downloads and a local web UI.
DeepSeek opens a plugin-first desktop agent harness
2026-10-02Verified announcementTRIAL
DeepSeek released DeepSeek Harness in worldwide public preview for macOS, Windows and a local web UI. The MIT-licensed project uses an everything-is-a-plugin architecture for everyday work, coding, research and background tasks. Agent teams, auto-approval review, scheduled tasks and voice input are still marked experimental, and the repository warns of compatibility-breaking changes.
Availability: worldwide public preview; macOS, Windows and local web UI
What this means for you
For teams evaluating local agent runtimes, DeepSeek Harness is a fully inspectable desktop and web option with a public plugin architecture. Its developer-preview stability and experimental approval features require isolation before serious work.
Evidence & related material
Technical details & scores
| Availability | worldwide public preview; macOS, Windows and local web UI |
|---|---|
| Architecture | everything-is-a-plugin on Cordis |
| License | MIT |
| Run | npx @deepseek-ai/dsh web |
| Experimental | agent teams, auto-approval review, scheduled tasks and voice input |
| Stability | developer preview with compatibility-breaking changes expected |
Technical impact 3
Engineering value 4
Adoption signal 4
Maturity 2
Verification cost 3
Risk 4