Yichen Jiang
c62d6f3a44
Review asked why this is a plugin and why it exports so much. The design note this branch shipped answered the second question itself — "a pure resolution function plus an installation function" — and the code drifted to seventeen exports and a Cordis plugin nobody approved or mounted. The plugin is gone. Transport policy has one answer per process: nothing to swap, and no scope narrower than the process to give one. Its `Config` was also the only supplier of a configuration branch, so resolution now reads the environment and nothing else — `mode`, the config-sourced fields, and the `config` policy source were unreachable the moment the plugin left. Four exports nothing outside the package used are internal again, and `currentProxyPolicy` answers with the direct policy instead of `undefined`, so `DIRECT_POLICY` no longer needs a public face. Nine functions remain, one per way a caller can need the policy; two is not reachable with six consumer seams. The package moves to `util/`. The note claimed a dependency on `undici` disqualified it from that group; the charter governs harness dependencies, not external ones, and the process note that says so predates this branch. The real blocker was the harness dependency: resolution needed one method of `LaunchEnvironmentSnapshot`, so it names a structural `EnvLookup` and the launcher passes its snapshot unchanged. `net/` is dissolved. Dropping the group's line from the repository layout also returns `AGENTS.md` to its original ceiling, so the raise the merge needed is reverted.
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.