Tianyi Cui
378853c096
Three scenarios captured an aria region while the state their golden records was implied by the pointer, the keyboard, or an in-flight Host read, so the capture could land on the other state. workspace-new-session-folding captures two goldens of one sidebar, each recording a hovered row that Rows.module.css renders with the row actions in place of the relative time. Both hovered rows are now established before their capture instead of inherited from wherever the Show-more click left a stationary pointer. The serial self-hosted master lane failed this scenario in every failing run observed between 2026-09-24 and 2026-09-27. turn-tail-actions records a tooltip beside the focused Copy footer in running.expected.md. Tooltip ignores focus while the last input came from a pointer and only a keydown clears that flag, so the scenario now establishes keyboard-owned focus and waits for the bubble. plugin-install-cancel polls the enabled card's status instead of sampling it once. The store marks the card and starts the directory reload the Host answers, and the status flipped disabled -> running 61 ms after the highlight in three local runs, which the single read sampled inside. Goldens, product code, and assertion strength are unchanged.
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.
pnpm run dev:web builds, serves, and rebuilds client bundles on source edits in one terminal, and make help lists the matching Make targets for Web and Desktop; the guide's application commands section owns the full table.
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.