This week in Cursor · Apr 26, 2026
Cursor Weekly: SDK Launch, Security Agents, and Marketplace Overhaul
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Cursor shipped three significant updates this week. The new Cursor SDK lets developers build programmatic agents using the same runtime, harness, and models that power Cursor itself, opening the door to custom automation at depth. On the security front, a beta Security Review feature for Teams and Enterprise plans adds two always-on agents: a Security Reviewer and a Vulnerability Scanner. Rounding things out, Team Marketplace now lets admins configure first-party plugins without connecting a repository first. If you are on a Teams or Enterprise plan, the security beta is live now and worth enabling immediately.
Agent SDK & Managed Agents
Cursor SDK: Build Programmatic Agents on the Cursor Runtime
- Cursor has introduced the Cursor SDK, enabling developers to build custom agents that run on the same runtime, harness, and models that power Cursor itself.
- This gives builders a first-class path to programmatic automation without leaving the Cursor ecosystem.
Developer Tools & Community
Cursor Security Review Beta: Always-On Security Reviewer and Vulnerability Scanner
- As of April 30, 2026, Cursor Security Review entered beta for Teams and Enterprise plans, offering two always-on security agents: a Security Reviewer for general code review and a Vulnerability Scanner for proactive detection.
- Admins can enable both agents directly from plan settings.
Team Marketplace: Create and Configure Plugin Marketplaces Without a Repository
- As of May 1, 2026, Cursor admins can now create a team marketplace without first connecting a repository, and can add, remove, and configure install behavior for first-party plugins directly in marketplace settings.
- This removes a significant setup friction point for teams managing internal tooling.
Action Items
Immediate
- Review the Cursor SDK documentation and prototype a custom agent using the Cursor runtime to evaluate fit for your automation workflows.
- If you are on a Teams or Enterprise plan, navigate to security settings and enable the Security Review beta, including both the Security Reviewer and Vulnerability Scanner agents.
- Audit your team marketplace configuration: take advantage of the new repository-free setup to add or reorganize first-party plugins and lock down install behavior per your team policy.
All Resources
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