ToolsTools give agents the ability to interact with external systems — APIs, databases, file storage, notifications, and more.UsageExpressions, variables, and response transformationTool TypesConfigure HTTP, SQL, JavaScript, and other tool typesTool ApprovalHuman-in-the-loop confirmation for sensitive operationsTool APIExecute tools programmatically via REST API Versioning Tools support Versioning.ExecutionMonitor workflow runs, handle pauses, and manage the execution lifecycle.UsageExpressions, variables, and response transformation