# DeepSeek Harness Released > Source: > Published: 2026-08-13 13:29:49+00:00 🧩 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 on X: "🧩 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" - 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