{"slug": "against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers", "title": "Against Claude Cowork, DeepSeek opens its open-source Harness to developers", "summary": "DeepSeek has opened a developer preview of DeepSeek Harness (dsh), an open-source agent harness positioned against Anthropic's Claude Cowork, providing a web interface for running AI agents with a plugin-based structure. Powered by DeepSeek's Cordis architecture, the project can be launched with `npx @deepseek-ai/dsh web` and is released under the MIT license, though DeepSeek warns the preview may introduce compatibility-breaking changes.", "body_md": "DeepSeek has opened a developer preview of DeepSeek Harness, an open-source agent harness positioned against Anthropic’s Claude Cowork. The project provides a web interface for running AI agents and uses a plugin-based structure for adding capabilities.\n\nThe project, also known as dsh, is powered by DeepSeek’s Cordis architecture and can be launched with `npx @deepseek-ai/dsh web`\n\n. DeepSeek says the preview is still changing rapidly and may introduce compatibility-breaking changes. The repository is released under the MIT license. [[IT Home](https://www.ithome.com/0/989/446.htm), in Chinese]", "url": "https://wpnews.pro/news/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers", "canonical_source": "https://technode.com/2026/08/14/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers/", "published_at": "2026-08-14 05:41:03+00:00", "updated_at": "2026-08-14 05:43:10.607054+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools"], "entities": ["DeepSeek", "DeepSeek Harness", "Anthropic", "Claude Cowork", "Cordis"], "alternates": {"html": "https://wpnews.pro/news/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers", "markdown": "https://wpnews.pro/news/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers.md", "text": "https://wpnews.pro/news/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers.txt", "jsonld": "https://wpnews.pro/news/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers.jsonld"}}