Yichen Jiang
13daefe073
Telemetry was the only call site this PR could not cover without changing the SDK transport underneath it, and both ways of doing that cost more than the channel is worth. Routing an `http.Agent` needs Node's `proxyEnv`, added in 22.21 and 24.5 — inside the engines range, so three supported runtimes stayed direct anyway, and the proxy package had to keep a `createNodeHttpAgent` export for a path that only sometimes worked. Replacing the transport with the SDK's `fetch` delegate covered every runtime but has no compression, while the shipped `base` bundle enables gzip and a realistic OTLP batch is 6.4x smaller with it; keeping both meant gzipping at the serializer, which put transport code inside a telemetry plugin. Telemetry is the one outbound channel whose loss costs the user nothing: no tool, model request, or session depends on it, and an export that cannot connect is already dropped silently. A user behind a mandatory proxy is left where they were rather than regressed. `src/index.ts`, `otel.spec.ts`, and `tsconfig.json` return to their state on master; the package keeps only a dev dependency on the proxy library. `egress.spec.ts` inverts: it installs a policy and asserts the fake proxy saw nothing, so an SDK upgrade that moved the exporter onto `fetch` would surface as a failing test rather than silently routing telemetry.
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.