Addresses the bot's v16 review on the settlement-path code: - critical: _LogStream._pending now seals the fragment list past a chunk cap (like the host captureStray seal), so a newline-free single-character drip no longer accumulates one list slot per write and OOMs on its own accounting. - _clamped lowers a soft==hard result by one unit (when hard >= 2) so a dual-limit ulimit -t leaves SIGXCPU a window to fire and a definite CPU overrun is reported as a timeout, not a worker-exit. - send_done wraps its encode+write in a try and, on any throw from a rebound transitive name (_dump_scalar/os), writes a fixed pre-encoded done frame via the import-time captured os.write, so a settled exception verdict is never downgraded to worker-exit. - drainReplies clears the consumed replyQueue slot so a wide written payload is released immediately, bounding host memory to the current backlog under sustained fd-3 backpressure. Tests added for each (fragment cap drip, dual-limit CPU overrun, transitive-name rebind done frame).
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.