# Conflicts: # packages/client/ui-chat/src/client/chat/AssistantMarkdown.tsx # packages/client/ui-chat/src/client/chat/CompactionItem.tsx # packages/client/ui-conversation/src/client/locales.ts # packages/client/ui-renderer/src/client/app.tsx # packages/client/ui-renderer/src/client/index.ts # packages/client/ui-renderer/tests/ui-renderer.client.spec.tsx # packages/client/ui-tool/src/client/tool/models/tool-call-model.ts # packages/client/ui-trajectory/src/client/trajectory-record.ts # packages/client/ui-trajectory/src/client/trajectory-snapshot-builder.ts # packages/client/ui-trajectory/tests/views.client.spec.tsx # packages/client/ui-workspace/src/client/tree.ts
DeepSeek Harness
English | 中文
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.
Documentation: https://deepseek-harness.github.io/deepseek-harness/
Developer preview
DeepSeek Harness is currently in developer preview and is iterating rapidly. THERE WILL BE COMPATIBILITY-BREAKING CHANGES.
Review the safety notice before running the project.
Run
Run from npm
Install Node.js, then run:
npx @deepseek-ai/dsh web
The command starts the Web UI at http://127.0.0.1:3080 by default and opens it in the default browser for a local launch. An SSH launch only prints the host URL because the SSH client or editor owns the local forwarded address. Pass --no-open to run the server without opening a browser. See Web UI guide.
Run from source
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
pnpm run build prepares the repository artifacts. pnpm dsh web uses those built artifacts without rebuilding.
Community and support
- 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.
Contributing
See CONTRIBUTING.md.
Development
Start with the development guide and architecture documentation.
For agents, follow AGENTS.md.
License
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.