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DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
It uses an architecture where everything is a plugin, and is powered by Cordis, whose design is described in A Programming Paradigm for Spatiotemporal Composability.
DeepSeek Harness is currently in developer preview and is iterating rapidly. THERE WILL BE COMPATIBILITY-BREAKING CHANGES.
Install Node.js, then run:
npx @deepseek-ai/dsh webThe command starts the Web UI, served at http://127.0.0.1:3080 by default. See Web UI guide.
To run from a repository checkout:
git clone https://github.com/deepseek-ai/deepseek-harness.git
cd deepseek-harness
pnpm install
pnpm run build
pnpm dsh web- Feel free to submit feedback or bug reports through GitHub Discussions.
- Add the
dsh-plugintopic to your plugin repository for discoverability. - Join DeepSeek Harness Discord community.
See CONTRIBUTING.md.
Start with the development guide and architecture documentation.
For agents, follow AGENTS.md.
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.
This repository is a public mirror of the source bundle shipped with
GenericAgent Desktop — the DeepSeek Harness (DSH), version 0.1.0-rc.5.
Original work and copyright: DeepSeek (MIT). The official upstream repository
lives at deepseek-ai/deepseek-harness.
The Windows desktop executable is published under this repository's GitHub
Releases. The bundled source is provided as-is; upstream maintenance happens
in the product distribution.