Overview
What is DeepSeek Harness?
DeepSeek Harness, or dsh, is an open-source agent harness developed by DeepSeek AI. It wraps models with the runtime capabilities needed for real work: tools, workspace access, sessions, approvals, logs, workflows, and UI.
The short version
DeepSeek frames the product as Agent = Model + Harness. The model is the reasoning engine; the harness is the layer that lets it inspect a repository, call tools, run shell commands, maintain state, delegate tasks, and expose approvals.
Why developers care
- Plugin-first architecture.
- Local Web UI for workspace tasks.
- Traceable session logs.
- Potentially model-agnostic workflows.
What to watch
- Developer preview instability.
- Breaking plugin APIs.
- Permission and sandbox maturity.
- Real-world task reliability.