diff --git a/packages/cli/src/ui/components/shared/MaxSizedBox.tsx b/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
index 0a51e2fdf7..74092324a7 100644
--- a/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
+++ b/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
@@ -264,13 +264,12 @@ function visitBoxRow(element: React.ReactNode): Row {
 
   if (enableDebugLog) {
     const boxProps = element.props as {
-      children?: React.ReactNode | undefined;
+      children?: React.ReactNode;
       readonly flexDirection?:
         | 'row'
         | 'column'
         | 'row-reverse'
-        | 'column-reverse'
-        | undefined;
+        | 'column-reverse';
     };
     // Ensure the Box has no props other than the default ones and key.
     let maxExpectedProps = 4;
diff --git a/packages/core/src/core/contentGenerator.ts b/packages/core/src/core/contentGenerator.ts
index 7915d6634e..4a794fd1f4 100644
--- a/packages/core/src/core/contentGenerator.ts
+++ b/packages/core/src/core/contentGenerator.ts
@@ -53,8 +53,8 @@ export type ContentGeneratorConfig = {
   model: string;
   apiKey?: string;
   vertexai?: boolean;
-  authType?: AuthType | undefined;
-  proxy?: string | undefined;
+  authType?: AuthType;
+  proxy?: string;
 };
 
 export function createContentGeneratorConfig(