{"slug": "deepseek-harness", "title": "DeepSeek Harness", "summary": "DeepSeek AI has released DeepSeek Harness (dsh), an open-source agent harness currently in developer preview, built on a plugin-based architecture powered by Cordis. Developers can install it via npx @deepseek-ai/dsh web, which starts a Web UI at http://127.0.0.1:3080 by default. The project is iterating rapidly and warns of compatibility-breaking changes.", "body_md": "English | [中文](/deepseek-ai/deepseek-harness/blob/master/README.zh.md)\n\nDeepSeek Harness (`dsh`\n\n) is an open-source agent harness developed by [DeepSeek AI](https://deepseek.com).\n\nIt uses an architecture where **everything is a plugin**, and is powered by [Cordis](https://github.com/cordiverse/cordis), whose design is described in [ A Programming Paradigm for Spatiotemporal Composability](https://github.com/cordiverse/paper).\n\nDeepSeek Harness is currently in *developer preview* and is iterating rapidly. **THERE WILL BE COMPATIBILITY-BREAKING CHANGES.**\n\nInstall `Node.js`\n\n, then run:\n\n```\nnpx @deepseek-ai/dsh web\n```\n\nThe command starts the Web UI, served at `http://127.0.0.1:3080`\n\nby default. See [Web UI guide](/deepseek-ai/deepseek-harness/blob/master/docs/user/guide/index.md).\n\nTo run from a repository checkout:\n\n```\ngit clone https://github.com/deepseek-ai/deepseek-harness.git\ncd deepseek-harness\npnpm install\npnpm run build\npnpm dsh web\n```\n\n- Feel free to submit feedback or bug reports through\n[GitHub Discussions](https://github.com/deepseek-ai/deepseek-harness/discussions). - Add the\ntopic to your plugin repository for discoverability.`dsh-plugin`\n\n- Join\n[DeepSeek Harness Discord community](https://discord.gg/Ycq5dCaS4).\n\nSee [CONTRIBUTING.md](/deepseek-ai/deepseek-harness/blob/master/CONTRIBUTING.md).\n\nStart with the [development guide](/deepseek-ai/deepseek-harness/blob/master/docs/development.md) and [architecture documentation](/deepseek-ai/deepseek-harness/blob/master/docs/architecture.md).\n\nFor agents, follow [AGENTS.md](/deepseek-ai/deepseek-harness/blob/master/AGENTS.md).\n\nThird-party dependencies and their licenses are disclosed in [THIRD_PARTY_NOTICES.md](/deepseek-ai/deepseek-harness/blob/master/THIRD_PARTY_NOTICES.md).", "url": "https://wpnews.pro/news/deepseek-harness", "canonical_source": "https://github.com/deepseek-ai/deepseek-harness", "published_at": "2026-08-13 12:58:02+00:00", "updated_at": "2026-08-13 13:13:21.194866+00:00", "lang": "en", "topics": ["ai-agents", "developer-tools"], "entities": ["DeepSeek AI", "DeepSeek Harness", "Cordis", "Node.js"], "alternates": {"html": "https://wpnews.pro/news/deepseek-harness", "markdown": "https://wpnews.pro/news/deepseek-harness.md", "text": "https://wpnews.pro/news/deepseek-harness.txt", "jsonld": "https://wpnews.pro/news/deepseek-harness.jsonld"}}