DeepSeek Harness
DeepSeek's open-source agent tool with an all-plugin architecture and a local Web UI
About DeepSeek Harness
DeepSeek Harness (dsh) is an open-source agent tool developed by DeepSeek AI, built on an “Everything is a Plugin” architecture and powered by Cordis. The project starts via npm, serves a Web UI by default at 127.0.0.1:3080 and opens the browser, making it well suited for developers to run local agent experiments and extend tooling. The project is currently in developer preview, iterating quickly, and may ship breaking compatibility changes.
Best for
Best use cases
Launch the agent Web UI locally
Validate the plugin-based agent architecture
Run local experiments during the developer preview
Features
Plugin-based architecture
Adopts an everything-is-a-plugin architecture and is powered by Cordis.
Local Web UI
After starting via npm, a Web UI is served by default at http://127.0.0.1:3080 and the default browser opens.
MIT license
The GitHub page lists the project license as MIT.
Pros
- Open source under the MIT license
- Everything-is-a-plugin architecture design
- Supports launching a local Web UI
Cons
- In developer preview, breaking compatibility changes may occur