DeepSeek Harness
Open source
Free
Free forever
Overview
DeepSeek Harness is an open source AI agent harness developed by DeepSeek AI. Its plugin based architecture treats models tools skills sessions sandboxes filesystems loops orchestration and user interfaces as replaceable components. It includes a local web interface and can be extended through custom plugins, allowing developers to build and customize agent workflows rather than using a fixed AI assistant.
Key features
- Plugin based AI agent architecture
- Custom agent workflows
- Local web interface
- Extensible plugin ecosystem