Yichen Jiang
cc5173f4cf
The skill carries the reliability rules, but nothing an agent loads by default said that specs run concurrently at all. The testing policy described tiers and evidence without ever stating how a spec is executed, and neither subtree AGENTS.md mentioned it — including scripts/, where the two suites that recently failed on unrelated branches live. docs/testing.md gains the execution model as the one home for the fact: forked workers, concurrent coverage partitions beside other gates, and self-hosted runners sharing a host and volume, with the rule that a spec passing only when run alone is a defect in the spec. It links the skill for the detailed rules. packages/AGENTS.md and scripts/AGENTS.md carry the short actionable form and link that section, so the rule is present in the context loaded while a test in either subtree is being written. Both ceilings are raised for the added words and the targets in docs/AGENTS.md move with them: docs/testing.md 1150 to 1300 (now 1237) and packages/AGENTS.md 675 to 750 (now 712), each keeping the 5% headroom the standard requires.
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.