DeepSeek Harness Explained: Everything Is a Plugin in DeepSeek's Open-Source Agent Framework
Hugging Face · youtube · 2026-11-09
Hugging Face published a deep-dive video on DeepSeek Harness (DSH), DeepSeek's open-source agent harness built on the Cordis plugin system around one idea: everything is a plugin — including the agent loop, tools, and even the system prompt.
Key points:
- Tour of the new Electron desktop app
- Architecture breakdown: how plugins provide services, how dependency injection and events wire everything together, and how Cordis safely cleans up plugins on unmount
- Hands-on: writing real plugins, running dsh web --patch with a custom cordis.patch.yml, and watching a greet tool, a bash guard, and a hello plugin load and fire inside the app
- Loading plugins into the desktop app via npm packages and .dsh user config, ending with a custom agent loop that never calls a model
Related event: DeepSeek Harness Explained: Everything as a Plugin(2 posts)→
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