Yichen Jiang
c44dcb7b85
The proxy guide told users a proxy could live in a project or `$DSH_HOME` `.env`. It could not: `loadLayeredEnv` refuses the four proxy names from any discovered file, as it refuses `PATH` and `NODE_OPTIONS`, and the launch fails with a pointer to `export`. That refusal is right for the invoking directory's file — it arrives with a clone, and a repository must not choose where the harness sends its traffic — and wrong for the user's own `$DSH_HOME/.env`, which already holds their API key. `readEnvLayer` now accepts `HTTP_PROXY`, `HTTPS_PROXY`, `ALL_PROXY`, and `NO_PROXY` from the directory that is the Harness home, and nowhere else. `DSH_HOME` is itself bootstrap-only, so no `.env` can relocate the exemption; the CA and TLS names in the same group stay refused everywhere, since they change what is trusted rather than where traffic goes. A project `.env` that sets a proxy name still fails the launch, and its message now names the home file as the second way out. Launching from inside the home directory reads that one file as the project layer; the exemption follows the directory. The seven existing refusal cases all write to the project layer and pass unchanged. Four new cases cover the home layer accepting both casings below an exported value, the home layer still refusing `SSL_CERT_FILE`, the project layer's new message, and the same-directory launch. The guide, both package READMEs, and the two Agent Notes that stated the old rule now state this one.
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.
For agents, follow AGENTS.md.
License
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.