Twenty's SDK 2.57.1 release runs TypeScript semantic checks on AI component previews before esbuild. The checks use the app's installed dependencies. Type errors and source locations return through the existing failure response, so the AI can fix mistakes before the preview runs.

The inbox message type gains two fields: AgentMessage.isBuiltInAssistant and senderApplicationId. The server must be deployed before the new client query ships. Developers who update the SDK should deploy the server first.

The release also brings back app contents on installed and marketplace app pages and polishes the Security and Privacy settings tabs. It moves the book-a-call step into Getting Started with a Cal.com embed.