DeepSeek Harness (DSH) EXPLAINED | Everything Is a Plugin

Description

In this video we take a deep dive into DeepSeek Harness (DSH), DeepSeek's open-source agent harness, built on the Cordis plugin system around one idea: everything is a plugin, including the agent loop, the tools, and even the system prompt. We start with a quick tour of the new Electron desktop application, then break down the architecture of DSH and the history and design of Cordis, the plugin system that powers it. We look at how plugins provide services, how dependency injection and events connect every part of the application, and how Cordis tracks registrations to clean up plugins safely