diff --git a/packages/cli/src/gemini.tsx b/packages/cli/src/gemini.tsx
index 10352f0b..4f16f0b0 100644
--- a/packages/cli/src/gemini.tsx
+++ b/packages/cli/src/gemini.tsx
@@ -28,6 +28,7 @@ import {
   AuthType,
 } from '@gemini-cli/core';
 import { validateAuthMethod } from './config/auth.js';
+import { setMaxSizedBoxDebugging } from './ui/components/shared/MaxSizedBox.js';
 
 export async function main() {
   const workspaceRoot = process.cwd();
@@ -49,6 +50,8 @@ export async function main() {
   const extensions = loadExtensions(workspaceRoot);
   const config = await loadCliConfig(settings.merged, extensions, sessionId);
 
+  setMaxSizedBoxDebugging(config.getDebugMode());
+
   // Initialize centralized FileDiscoveryService
   config.getFileService();
   if (config.getCheckpointingEnabled()) {
diff --git a/packages/cli/src/ui/components/shared/MaxSizedBox.test.tsx b/packages/cli/src/ui/components/shared/MaxSizedBox.test.tsx
index 23ef98cd..7abd19a2 100644
--- a/packages/cli/src/ui/components/shared/MaxSizedBox.test.tsx
+++ b/packages/cli/src/ui/components/shared/MaxSizedBox.test.tsx
@@ -5,11 +5,17 @@
  */
 
 import { render } from 'ink-testing-library';
-import { MaxSizedBox } from './MaxSizedBox.js';
+import { MaxSizedBox, setMaxSizedBoxDebugging } from './MaxSizedBox.js';
 import { Box, Text } from 'ink';
 import { describe, it, expect } from 'vitest';
 
 describe('<MaxSizedBox />', () => {
+  // Make sure MaxSizedBox logs errors on invalid configurations.
+  // This is useful for debugging issues with the component.
+  // It should be set to false in production for perfornance and to avoid
+  // cluttering the console if there are ignoreable issues.
+  setMaxSizedBoxDebugging(true);
+
   it('renders children without truncation when they fit', () => {
     const { lastFrame } = render(
       <MaxSizedBox maxWidth={80} maxHeight={10}>
diff --git a/packages/cli/src/ui/components/shared/MaxSizedBox.tsx b/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
index fe73c250..1b5b90aa 100644
--- a/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
+++ b/packages/cli/src/ui/components/shared/MaxSizedBox.tsx
@@ -10,7 +10,11 @@ import stringWidth from 'string-width';
 import { Colors } from '../../colors.js';
 import { toCodePoints } from '../../utils/textUtils.js';
 
-const enableDebugLog = true;
+let enableDebugLog = false;
+
+export function setMaxSizedBoxDebugging(value: boolean) {
+  enableDebugLog = value;
+}
 
 function debugReportError(message: string, element: React.ReactNode) {
   if (!enableDebugLog) return;