What is DeepSeek Harness?
Understand the role of DeepSeek Harness through its model, tools, permissions, sessions, and agent loop.
Official factOpen the guide
First run
Run it first, then learn the details
Take the shortest reliable path from the Web UI and model credentials to common troubleshooting.
In sequence
Follow the learning path
Each step states its applicable version, verification date, and primary sources.
Launch the Web UI in 10 minutes
Start DeepSeek Harness from npm or source, configure a model, select a workspace, and complete a first task.
Locally testedOpen the guide
Configure models and API keys safely
Understand credential storage, resolution precedence, custom providers, and OpenAI-compatible endpoint boundaries.
Official factOpen the guide
Common problems and diagnostic checklist
Diagnose ports, build artifacts, credentials, models, patches, and Headless arguments without exposing sensitive information.
Official factOpen the guide