Tianyi Cui
1c0234e7b1
The self-hosted Windows serial lane failed 12 cases from one cause: the host exported Git's indexed command-line configuration (`GIT_CONFIG_COUNT` with `GIT_CONFIG_KEY_0` / `GIT_CONFIG_VALUE_0`), and the shared subprocess scrub removes credential-shaped names, so a child inherited the counter without its key and died with `error: missing config key GIT_CONFIG_KEY_0` before it read any configuration file. Both spec files now delete that group from their own environment before they spawn Git, because they judge profile behavior rather than host state. The product-side handling stays out of this change; it is preserved on the branch `deferred/git-command-line-config-scrub-20260927` for a later product PR. GIT_CONFIG_COUNT=1 GIT_CONFIG_KEY_0=core.bare GIT_CONFIG_VALUE_0=true pnpm exec vitest run packages/boot/plugin-manager/tests/github-connection.spec.ts packages/boot/plugin-manager/tests/manager.spec.ts -> 12 failed at the parent revision, 95/95 passed with the isolation.
DeepSeek Harness
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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.