Feature
Cursor adds custom tools and nested subagents to TypeScript and Python SDKs
Amy Reed · 17 June 2026
Cursor updated its TypeScript and Python SDKs to support custom tools via local.customTools, auto-review routing, JSONL and custom metadata stores, and infinitely nested subagents.
Developers gain access to extended Cursor agent capabilities through updates in the TypeScript and Python SDKs that add custom tools via local.customTools and support for infinitely nested subagents. The releases also bring auto-review routing along with JSONL and custom metadata stores. Vibe Builders and Basic Users…