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What Is DeepSeek Harness: The Open-Source Agent Runtime Where 'Everything Is a Plugin'
DeepSeek's officially open-sourced agent runtime (npm package @deepseek-ai/dsh) bundles sessions, tools, workspaces, sandboxing, approvals, the agent loop, and dual interfaces, under the design slogan 'Everything is a Plugin'. One article covering what is in the box, what it looks like running, what it is not, and the mindset the developer-preview stage calls for.
2026/09/30 · DeepSeek Harness · Open Source · Agent Runtime
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Installing DeepSeek Harness: Two Paths, Web GUI and Terminal
How to install DeepSeek Harness (dsh), DeepSeek's official open-source agent runtime: launch the Web GUI with npx @deepseek-ai/dsh web, set your key under Settings → Models, choose a workspace, run your first task, plus the terminal-only route via the headless profile. Every step spells out the expected output and the real errors the official docs list.
2026/09/30 · DeepSeek Harness · dsh · Installation Guide