DeepSeek Harness Launches as First Agent Product with Full Self-Assembly Capabilities

DeepSeek releases Harness on npm, offering a plugin-centric runtime for agent assembly. Unlike Codex, it enables full customization of tools, prompts, and workflows for coding and research tasks.

Woofun AI reports that DeepSeek has officially released DeepSeek Harness, its inaugural Agent product, now accessible via npm. The platform functions as a runtime environment for assembling Agents rather than a fixed coding tool like Codex. It supports project management, long-term tasks, multi-Agent coordination, and context handling, allowing users to configure specific tools and prompts for coding, research, or writing. The system adheres to an 'everything is a plugin' design philosophy, enabling the replacement or combination of models, tools, storage, and interfaces through plugins. Beta users have already developed extensions for long-term memory and interface customization, granting users control over Agent rules, operations, and toolsets.