DeepSeek Harness

Plugin-first agent harness from DeepSeek — models, tools, and loops are all swappable.

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License: MIT
Platforms: Linux, Macos, Windows
Docker: No
Commercial use: Allowed
Stars: 222k
Language: TypeScript
Last commit: Sep 11, 2026
Tags: harnesspluginsdeepseekagent

MIT. Developer preview; expect breaking plugin API changes.

About.

DeepSeek Harness (dsh) is an MIT agent runtime where models, tools, sessions, sandboxes, loops, and UI are Cordis plugins. Swap pieces in config instead of forking a privileged core. Developer preview — APIs still move.

everything-is-a-plugin · Cordis composition · web + Python SDK · swappable loops

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