Plugins on the Cursor Marketplace
Cursor now supports plugins that package skills, subagents, MCP servers, hooks, and rules into single-install bundles. The new Cursor Marketplace lets developers discover and install pre-built capabilities to extend the editor without manual configuration.
Initial plugin partners include Amplitude, AWS, Figma, Linear, Stripe, and more, covering workflows across design, databases, payments, analytics, and deployment. Install plugins directly from the editor using the /add-plugin command or browse available options at cursor.com/marketplace.
Sandbox Network Access Controls
The sandbox environment now enforces granular network access controls alongside existing file and directory restrictions. Developers can define precisely which domains agents are allowed to reach:
- User config only: Restricted to domains specified in
sandbox.json - User config with defaults: Limited to custom allowlist plus Cursor's built-in defaults
- Allow all: Unrestricted network access within the sandbox
Enterprise admins can enforce organization-wide network allowlists and denylists from the admin dashboard, ensuring consistent egress policies across all agent sandbox sessions.
Async Subagents and Performance Improvements
Subagents previously ran synchronously, blocking the parent agent until completion. The new asynchronous execution model allows parent agents to continue working while subagents run in the background. Subagents can now spawn their own subagents, creating hierarchical task trees for tackling larger work like multi-file features, major refactors, and complex bug fixes.
Performance enhancements include reduced latency, better streaming feedback, and more responsive parallel execution across subagent operations.