Per review on PR #2768: - Restore a concurrency block in ci.yml (cancel-in-progress: true) so a fresh PR push cancels the superseded run; GitHub has no default PR auto-cancel, so removing it would stack a second full 9-job run on every push. Update the ci-workflow.spec assertion accordingly. - Fix comment misplacements from the split boundary: ci.yml's all-checks-passed now carries its own branch-protection comment (the drill comment that was orphaned above it is gone), and ci-master.yml no longer ends with an orphaned all-checks-passed comment. - Restore the DeepSeek e2e workflow describe-block in ci-workflow.spec.ts that the rewrite had silently deleted (e2e.yml is unchanged). - serial-windows comment no longer claims non-blocking-for-PR/absent-from-needs since ci-master never listens to pull_request. - DSH_TELEMETRY_DISABLED safe-use comment restored in ci-master.yml env; split rationale (mi gray segments in PR check) documented in .github/AGENTS.md. Verification: ci-workflow.spec.ts 13/13, both workflows YAML-parse with correct concurrency, git diff --check clean.
DeepSeek Harness
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DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
It uses an architecture where everything is a plugin, and is powered by Cordis, whose design is described in A Programming Paradigm for Spatiotemporal Composability.
Developer preview
DeepSeek Harness is currently in developer preview and is iterating rapidly. THERE WILL BE COMPATIBILITY-BREAKING CHANGES.
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
- Feel free to 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.