Cursor 3 ships Agents Window — parallel multi-agent across multiple repos
Cursor 3 (April 2, 2026) introduces a dedicated Agents Window. Instead of one agent in one file, developers can run multiple agents across multiple repositories at the same time — each operating on its own task in its own context.
This is the explicit Cursor answer to "what is an IDE in the agent era." Cursor 2's Composer let one agent operate across one repo; Cursor 3's Agents Window lets N agents work across N repos in parallel, with the editor as the supervisor surface. The "many agents running simultaneously" pattern is the same shape Codex subagents and Claude Code's parallel-Task pattern adopted earlier.
What makes Cursor's version specifically useful is the editor-native view — you can see the diffs and tool calls each agent is making in real time, intervene if needed, and accept results. The opposite shape (full-autonomy Devin-style) has its place, but supervised parallel is where most of the day-to-day development work has settled in 2026.