Agent = Model + Harness Harness keeps agents working in real-world environments The model is the soul of an agent. A harness lets an agent understand its environment, use tools, and keep working in real-world settings. Cordis kernel The Cordis kernel manages plugin mounting, unmounting, and dependencies. Agent capabilities live in the plugins. Capabilities as plugins Plugins provide every agent capability, including models, tools, skills, sessions, sandboxes, storage, loops, scheduling, and the UI. Cordis services and events let the plugins work together. Compose with configuration Developers can select, swap, or extend any capability in configuration without changing the DeepSeek Harness source code. Customize your DeepSeek Harness Get started Try it now or install from source Quick start Install Node.js, then launch the Web UI with npx. $ npx @deepseek-ai/dsh web Install from source Clone the full source and follow the setup instructions in the repository.…