DeepSeek Harness: An Open-Source Agent Framework Where Everything Is a Plugin

▲ 30bjin1 HN discussion

DeepSeek AI has released DeepSeek Harness (dsh), an open-source agent harness with a plugin-based architecture powered by Cordis. Currently in developer preview, it offers a web UI and can be run via npx or from source. The project has already gained 5k stars and 300 forks on GitHub, with an active community on Discord and GitHub Discussions.

DeepSeek Harness is currently in developer preview and is iterating rapidly. THERE WILL BE COMPATIBILITY-BREAKING CHANGES.
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2026-08-13