# Cursor Custom stores, custom tools, and auto-review for the Cursor SDK

- Product: Cursor (https://whatsnew.fyi/product/cursor)
- Vendor: Anysphere
- Date: 2026-06-04
- Original notes: https://cursor.com/changelog/sdk-updates-jun-2026
- Permalink: https://whatsnew.fyi/product/cursor/releases/2026-06-04-custom-stores-custom-tools-and-auto-review-for-th

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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New stores, custom tools, auto-review, and nested subagents for the TypeScript and Python SDKs, plus run correlation IDs, lighter imports, and reliability fixes.

- **added** — Add custom stores for the Cursor SDK
- **added** — Add custom tools for the Cursor SDK
- **added** — Add auto-review feature for the Cursor SDK
- **added** — Add nested subagents support for TypeScript and Python SDKs
- **added** — Add run correlation IDs
- **changed** — Make imports lighter
- **fixed** — Improve reliability of the Cursor SDK