---
title: "Cursor SDK"
description: "1 posts about Cursor SDK, summarised, each linking to the original."
---

# Cursor SDK
> 1 posts about Cursor SDK, summarised, each linking to the original.

## Articles

### [Custom stores, custom tools, and auto-review for the Cursor SDK](https://yomu.fyi/post/custom-stores-custom-tools-and-auto-review-for-the-cursor-sdk.md)
- Company: [Cursor](https://yomu.fyi/company/cursor.md)
- Published: Jun 4, 2026
- Type: Announcement

The Cursor SDK’s TypeScript and Python releases add custom tools, auto-review, and nested subagents. Custom tools let developers pass function definitions through local.customTools, exposed via a built-in MCP server, making them available to all subagents. Auto-review routes local agent tool calls through a classifier; instructions in permissions.json control which calls run automatically and which are held for review. The SDK now supports a JSONL store for agent metadata as an alternative to SQLite, and developers can implement the LocalAgentStore interface for custom backends. Subagents can spawn their own subagents without additional configuration, and the release includes reliability and platform fixes.