Tianyi Cui
d5a109c60f
Convert an unknown legacy plugin wrapper such as
{kind: 'plugin', plugin: 'acme'} into {kind: 'plugin:acme'}, retaining the
complete plugin name after one prefix. Keep the existing explicit
first-party producer renames and preserve all non-identity metadata.
A direct source already records its producer in kind. Reclassifying
unknown direct kinds into plugin:source:<name> needlessly changes that
attribution and forces plugin consumers to adopt new identifiers even
though V4 accepts their existing representation. Return every valid
direct source unchanged, including already-prefixed names. Remove the
obsolete direct-kind table and two-category identity helper rather than
adding collision classification or another mapping layer.
Update the source conversion examples, codec/restore regressions, and
native fixture producers together. Refresh only the owning Python
advanced scenario's unshipped V4 outputs; preserve historical V0-V3
recordings and their generation selection. Event names, content tags,
and ToolSchema migration remain separate concerns.
Refs #2692
DeepSeek Harness
English | 中文
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.
Citation
@misc{deepseek-harness2026,
title={DeepSeek Harness: Everything is a Plugin},
author={DeepSeek-AI},
year={2026},
publisher={GitHub},
howpublished={\url{https://github.com/deepseek-ai/deepseek-harness}},
}
License
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.