diff --git a/packages/cli/src/ui/IdeIntegrationNudge.tsx b/packages/cli/src/ui/IdeIntegrationNudge.tsx
index 2be69ad7..906947f2 100644
--- a/packages/cli/src/ui/IdeIntegrationNudge.tsx
+++ b/packages/cli/src/ui/IdeIntegrationNudge.tsx
@@ -92,11 +92,7 @@ export function IdeIntegrationNudge({
         </Text>
         <Text dimColor>{installText}</Text>
       </Box>
-      <RadioButtonSelect
-        items={OPTIONS}
-        onSelect={onComplete}
-        isFocused={true}
-      />
+      <RadioButtonSelect items={OPTIONS} onSelect={onComplete} />
     </Box>
   );
 }
diff --git a/packages/cli/src/ui/components/AuthDialog.tsx b/packages/cli/src/ui/components/AuthDialog.tsx
index 1262f894..c353727c 100644
--- a/packages/cli/src/ui/components/AuthDialog.tsx
+++ b/packages/cli/src/ui/components/AuthDialog.tsx
@@ -147,7 +147,6 @@ export function AuthDialog({
           items={items}
           initialIndex={initialAuthIndex}
           onSelect={handleAuthSelect}
-          isFocused={true}
         />
       </Box>
       {errorMessage && (
diff --git a/packages/cli/src/ui/components/shared/RadioButtonSelect.test.tsx b/packages/cli/src/ui/components/shared/RadioButtonSelect.test.tsx
index 4b36fe3c..d4c13ba5 100644
--- a/packages/cli/src/ui/components/shared/RadioButtonSelect.test.tsx
+++ b/packages/cli/src/ui/components/shared/RadioButtonSelect.test.tsx
@@ -5,11 +5,12 @@
  */
 
 import { render } from 'ink-testing-library';
+import { waitFor } from '@testing-library/react';
 import {
   RadioButtonSelect,
   type RadioSelectItem,
 } from './RadioButtonSelect.js';
-import { describe, it, expect } from 'vitest';
+import { describe, it, expect, vi } from 'vitest';
 
 const ITEMS: Array<RadioSelectItem<string>> = [
   { label: 'Option 1', value: 'one' },
@@ -27,12 +28,7 @@ describe('<RadioButtonSelect />', () => {
 
   it('renders with the second item selected and matches snapshot', () => {
     const { lastFrame } = render(
-      <RadioButtonSelect
-        items={ITEMS}
-        initialIndex={1}
-        onSelect={() => {}}
-        isFocused={true}
-      />,
+      <RadioButtonSelect items={ITEMS} initialIndex={1} onSelect={() => {}} />,
     );
     expect(lastFrame()).toMatchSnapshot();
   });
@@ -42,7 +38,6 @@ describe('<RadioButtonSelect />', () => {
       <RadioButtonSelect
         items={ITEMS}
         onSelect={() => {}}
-        isFocused={true}
         showNumbers={false}
       />,
     );
@@ -58,7 +53,6 @@ describe('<RadioButtonSelect />', () => {
       <RadioButtonSelect
         items={manyItems}
         onSelect={() => {}}
-        isFocused={true}
         showScrollArrows={true}
         maxItemsToShow={5}
       />,
@@ -82,11 +76,7 @@ describe('<RadioButtonSelect />', () => {
       },
     ];
     const { lastFrame } = render(
-      <RadioButtonSelect
-        items={themeItems}
-        onSelect={() => {}}
-        isFocused={true}
-      />,
+      <RadioButtonSelect items={themeItems} onSelect={() => {}} />,
     );
     expect(lastFrame()).toMatchSnapshot();
   });
@@ -97,11 +87,7 @@ describe('<RadioButtonSelect />', () => {
       value: `item-${i + 1}`,
     }));
     const { lastFrame } = render(
-      <RadioButtonSelect
-        items={manyItems}
-        onSelect={() => {}}
-        isFocused={true}
-      />,
+      <RadioButtonSelect items={manyItems} onSelect={() => {}} />,
     );
     expect(lastFrame()).toMatchSnapshot();
   });
@@ -113,3 +99,83 @@ describe('<RadioButtonSelect />', () => {
     expect(lastFrame()).toBe('');
   });
 });
+
+describe('keyboard navigation', () => {
+  it('should call onSelect when "enter" is pressed', () => {
+    const onSelect = vi.fn();
+    const { stdin } = render(
+      <RadioButtonSelect items={ITEMS} onSelect={onSelect} />,
+    );
+
+    stdin.write('\r');
+
+    expect(onSelect).toHaveBeenCalledWith('one');
+  });
+
+  describe('when isFocused is false', () => {
+    it('should not handle any keyboard input', () => {
+      const onSelect = vi.fn();
+      const { stdin } = render(
+        <RadioButtonSelect
+          items={ITEMS}
+          onSelect={onSelect}
+          isFocused={false}
+        />,
+      );
+
+      stdin.write('\u001B[B'); // Down arrow
+      stdin.write('\u001B[A'); // Up arrow
+      stdin.write('\r'); // Enter
+
+      expect(onSelect).not.toHaveBeenCalled();
+    });
+  });
+
+  describe.each([
+    { description: 'when isFocused is true', isFocused: true },
+    { description: 'when isFocused is omitted', isFocused: undefined },
+  ])('$description', ({ isFocused }) => {
+    it('should navigate down with arrow key and select with enter', async () => {
+      const onSelect = vi.fn();
+      const { stdin, lastFrame } = render(
+        <RadioButtonSelect
+          items={ITEMS}
+          onSelect={onSelect}
+          isFocused={isFocused}
+        />,
+      );
+
+      stdin.write('\u001B[B'); // Down arrow
+
+      await waitFor(() => {
+        expect(lastFrame()).toContain('● 2. Option 2');
+      });
+
+      stdin.write('\r');
+
+      expect(onSelect).toHaveBeenCalledWith('two');
+    });
+
+    it('should navigate up with arrow key and select with enter', async () => {
+      const onSelect = vi.fn();
+      const { stdin, lastFrame } = render(
+        <RadioButtonSelect
+          items={ITEMS}
+          onSelect={onSelect}
+          initialIndex={1}
+          isFocused={isFocused}
+        />,
+      );
+
+      stdin.write('\u001B[A'); // Up arrow
+
+      await waitFor(() => {
+        expect(lastFrame()).toContain('● 1. Option 1');
+      });
+
+      stdin.write('\r');
+
+      expect(onSelect).toHaveBeenCalledWith('one');
+    });
+  });
+});
diff --git a/packages/cli/src/ui/components/shared/RadioButtonSelect.tsx b/packages/cli/src/ui/components/shared/RadioButtonSelect.tsx
index 511d3847..746744e5 100644
--- a/packages/cli/src/ui/components/shared/RadioButtonSelect.tsx
+++ b/packages/cli/src/ui/components/shared/RadioButtonSelect.tsx
@@ -55,7 +55,7 @@ export function RadioButtonSelect<T>({
   initialIndex = 0,
   onSelect,
   onHighlight,
-  isFocused,
+  isFocused = true,
   showScrollArrows = false,
   maxItemsToShow = 10,
   showNumbers = true,