Cursor unveiled its third-generation interface, Cursor 3, aimed at consolidating the growing swarm of AI agents that now write most code. After a year of shifting from manual edits to agent-driven development, the team built a workspace from scratch rather than extending VS Code. The new UI groups local and cloud agents, supports multi-repo layouts, and lets users flip back to IDE at will.

All agents appear in a unified sidebar, whether launched from desktop, mobile, Slack, GitHub, or Linear. Cloud sessions can hand off to a local machine for quick edits, then return to the cloud for long‑running tasks, eliminating interruptions when laptops close. The built‑in Composer 2 model supplies high usage limits, enabling rapid iteration on generated code.

Developers can extend agents through the Cursor Marketplace, which lists hundreds of plug‑ins that add MCPs, skills or sub‑agents with a single click, and even supports private team catalogs. An integrated browser lets users navigate local sites, while a new diffs view streamlines staging, committing and opening pull requests. Cursor positions the IDE as the primary hub for AI‑augmented development today.