System Architecture

A production-ready coding agent is a complex system composed of several critical components working in unison. While the model provides the intelligence, the surrounding infrastructure is what enables it to interact with files, run commands, and maintain safety. The next Figure shows the key components of a Cursor’s agent system. Router Cursor integrates multiple agentic models, including its own specialized Composer model. For efficiency, the system offers an “Auto” mode that acts as a router.