DeepSeek Harness

DeepSeek AI has released DeepSeek Harness (dsh), an open-source agent harness currently in developer preview, built on a plugin-based architecture powered by Cordis. Developers can install it via npx @deepseek-ai/dsh web, which starts a Web UI at http://127.0.0.1:3080 by default. The project is iterating rapidly and warns of compatibility-breaking changes.

English | 中文 /deepseek-ai/deepseek-harness/blob/master/README.zh.md DeepSeek Harness dsh is an open-source agent harness developed by DeepSeek AI https://deepseek.com . It uses an architecture where everything is a plugin , and is powered by Cordis https://github.com/cordiverse/cordis , whose design is described in A Programming Paradigm for Spatiotemporal Composability https://github.com/cordiverse/paper . 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 web The command starts the Web UI, served at http://127.0.0.1:3080 by default. See Web UI guide /deepseek-ai/deepseek-harness/blob/master/docs/user/guide/index.md . 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 https://github.com/deepseek-ai/deepseek-harness/discussions . - Add the topic to your plugin repository for discoverability. dsh-plugin - Join DeepSeek Harness Discord community https://discord.gg/Ycq5dCaS4 . See CONTRIBUTING.md /deepseek-ai/deepseek-harness/blob/master/CONTRIBUTING.md . Start with the development guide /deepseek-ai/deepseek-harness/blob/master/docs/development.md and architecture documentation /deepseek-ai/deepseek-harness/blob/master/docs/architecture.md . For agents, follow AGENTS.md /deepseek-ai/deepseek-harness/blob/master/AGENTS.md . Third-party dependencies and their licenses are disclosed in THIRD PARTY NOTICES.md /deepseek-ai/deepseek-harness/blob/master/THIRD PARTY NOTICES.md .