Yichen Jiang
8a320a276b
The Models page offered two side-by-side buttons, "Add provider" and "Add a custom provider", which asked a new user to classify their provider by an implementation fact — whether it is in the installed pi-ai catalog — before seeing anything. One "Add model provider" button now opens one card whose segmented mode switch chooses between a third-party model provider (the catalog select over the provider editor) and a custom model API (the create form for a relay, a self-hosted server, or any other OpenAI- or Anthropic-compatible endpoint), with a one-line purpose beneath the switch. A panel mounts the first time its mode is shown and stays mounted, hidden, while the card is open, so switching modes discards neither draft. A mode is offered only while its namespace is mounted and disabled while it has nothing to offer, which keeps the old per-button availability; with one mode the card shows that form alone. The protocol pickers name each protocol by its product name while the stored value stays the schema identifier, and an unnamed protocol shows that identifier. The Chinese copy of this page calls a provider 提供商 throughout. The e2e scenarios drive the single entry and its custom-API mode, and the ARIA goldens that carry the page copy are re-recorded. The user guide describes the one entry with fresh screenshots in both languages.
DeepSeek Harness
English | 中文
DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
It is built on an everything-is-a-plugin architecture and 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 in developer preview and 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
- 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.
Citation
@misc{deepseek-harness2026,
title={DeepSeek Harness: Everything is a Plugin},
author={DeepSeek-AI},
year={2026},
publisher={GitHub},
howpublished={\url{https://github.com/deepseek-ai/deepseek-harness}},
}
License
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.