DeepSeek releases minimalist open-source coding agent harness
Cole Medin · youtube · 2026-08-20
DeepSeek has released a new generation of fully open-source coding agent harness, "DeepSeek Harness", garnering over 165k GitHub stars in a week. Key features covered in the video include:
- Plugin Architecture: Everything in the UI is a plugin.
- Modes: Standard, Creator (for building plugins), and Orchestrator.
- Sub-Agent Integration: Can call Claude Code and Codex as sub-agents.
- Trajectory View: Visualizes the agent's execution path.
- Custom Plugins: Demonstrates building a custom plugin.
The review suggests this minimalist design represents the future of self-extensible agents, addressing solution fragmentation despite a still-maturing UI.
Related event: DeepSeek Open-Sources Harness, a Fully Customizable Coding Agent Framework(4 posts)→
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