Yichen Jiang
daaede29a5
The turn-error Definition suppressed its node permanently once the owning turn carried any llm/retry event — a rule from the retired model where a retry opened a new numbered turn. Retries now run inside the failing turn, so the suppression hid exactly the exhausted terminal failure it existed to defer to: spending every transient retry left the conversation with a neutral collapsed retry row and no error row at all. Delete the suppression: turn-error matches only turn/start and error-reason turn/end, and renders whenever its turn recorded a terminal error; the settled retry chain renders beside it through the separate model-retry node. The Definition suite now asserts the exhausted-retry error node in full history, tail-only windows, and after prepending the chain, and a new keyless live e2e scenario exhausts a scenario-owned two-retry policy and pins the terminal error row beside the settled retry row (the scaffold gains replayRetryPolicy so exhaustion runs in milliseconds). Both stale notes are corrected to the same-turn retry reality, and the new bug-fix note owns the removal rationale.
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.