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DeepSeek Harness Released

DeepSeek released DeepSeek Harness v0.1 in Developer Preview, an open-source agent harness under the MIT license, powered by the Cordis meta-framework, with all components implemented as plugins. The release aims to provide developers worldwide with a flexible, extensible alternative to existing agent harnesses.

read1 min views1 publishedAug 13, 2026
DeepSeek Harness Released
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🧩 DeepSeek Harness v0.1 is now available in Developer Preview! 🔹 We’re opening it up to developers building agent harnesses worldwide and open-sourcing the codebase in MIT license. 🔹 Powered by the Cordis meta-framework, DeepSeek Harness is an agent harness built around one core idea: Everything is a plugin. Models, tools, skills, sessions, sandboxes, filesystems, loops, orchestration, and UI are ALL implemented as plugins, and can be mixed, matched, replaced, and extended.

Try it now!

  • DeepSeek open-sourcing everything so we don’t have to live under the reign of Anthropic.
  • You should launch a coding sub plan now. You got harness, you got model, and you have enough compute. Why not try a coding plan now. This will be a good entry in current tech dominant userbase!!
  • finally not another pi wrapper 😂 (I like pi
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