Review (ds-review-bot) found the exit-time deletion of per-process spill roots conflicts with the documented retention decision: spill artifacts are model-visible locators that resumed or forked sessions may still reference (2026-07-17-local-spill-startup-cleanup), and an exception thrown from an 'exit' listener can change the process exit code. - dsh-spill-local: revert the exit handler entirely; its default root is already owned by the package's 30-day startup sweep. - dsh-subprocess-local/spawn: remove the per-process spill dir at a JavaScript-observable exit only while it is EMPTY (collectors unlink their spill files on dispose), best-effort with a named swallow so a Windows-held handle never changes the exit code; dirs holding spill files keep them for external cleanup. - Document the empty-dir exit removal in the package README and the Agent Note, and re-record both bilingual pairs.
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.