update to height based on all available height module fix overflow

packages/cli/src/ui/components/AskUserDialog.tsx

@@ -12,6 +12,7 @@ import {
   useEffect,
   useReducer,
   useContext,
+  useState,
 } from 'react';
 import { Box, Text } from 'ink';
 import { theme } from '../semantic-colors.js';
@@ -782,28 +783,28 @@ const ChoiceQuestionView: React.FC<ChoiceQuestionViewProps> = ({
     }
   }, [customOptionText, isCustomOptionSelected, question.multiSelect]);
 
+  const [actualQuestionHeight, setActualQuestionHeight] = useState(0);
+
   const HEADER_HEIGHT = progressHeader ? 2 : 0;
   const TITLE_MARGIN = 1;
   const FOOTER_HEIGHT = 2; // DialogFooter + margin
   const overhead = HEADER_HEIGHT + TITLE_MARGIN + FOOTER_HEIGHT;
+
   const listHeight = availableHeight
     ? Math.max(1, availableHeight - overhead)
     : undefined;
-  const maxQuestionHeight =
-    question.unconstrainedHeight && listHeight
-      ? // When unconstrained, give the question a majority of the vertical space (e.g., 70%).
-        // The options list will take the remaining space and scroll if necessary.
-        // This is more robust than calculating based on `selectionItems.length`,
-        // which can incorrectly shrink the question if there are many options.
-        Math.max(5, Math.floor(listHeight * 0.7))
-      : 15;
-  const questionHeight =
+
+  // Modulo the fixed overflow (overhead + 4 lines reserved for list), use all remaining height.
+  const maxQuestionHeight = listHeight ? Math.max(5, listHeight - 4) : 15;
+
+  const questionHeightLimit =
     listHeight && !isAlternateBuffer
-      ? Math.min(maxQuestionHeight, Math.max(1, listHeight - DIALOG_PADDING))
+      ? Math.min(maxQuestionHeight, listHeight)
       : undefined;
+
   const maxItemsToShow =
-    listHeight && questionHeight
-      ? Math.max(1, Math.floor((listHeight - questionHeight) / 2))
+    listHeight && actualQuestionHeight
+      ? Math.max(1, Math.floor((listHeight - actualQuestionHeight) / 2))
       : selectionItems.length;
 
   return (
@@ -811,9 +812,10 @@ const ChoiceQuestionView: React.FC<ChoiceQuestionViewProps> = ({
       {progressHeader}
       <Box marginBottom={TITLE_MARGIN}>
         <MaxSizedBox
-          maxHeight={questionHeight}
+          maxHeight={questionHeightLimit}
           maxWidth={availableWidth}
           overflowDirection="bottom"
+          onHeightChange={setActualQuestionHeight}
         >
           <Box flexDirection="column">
             <MarkdownDisplay

packages/cli/src/ui/components/ToolConfirmationQueue.test.tsx

@@ -282,9 +282,10 @@ describe('ToolConfirmationQueue', () => {
     // hideToolIdentity is true for ask_user -> subtracts 4 instead of 6
     // availableContentHeight = 19 - 4 = 15
     // ToolConfirmationMessage handlesOwnUI=true -> returns full 15
-    // AskUserDialog allocates questionHeight = Math.min(maxQuestionHeight, Math.max(5, listHeight - DIALOG_PADDING)).
-    // maxQuestionHeight = floor(15 * 0.7) = 10.
-    // 10 lines is enough for the 6-line question + padding.
+    // AskUserDialog allocates questionHeight = availableHeight - overhead - minListHeight.
+    // listHeight = 15 - overhead (Header:0, Margin:1, Footer:2) = 12.
+    // maxQuestionHeight = listHeight - 4 = 8.
+    // 8 lines is enough for the 6-line question.
     await waitFor(() => {
       expect(lastFrame()).toContain('Line 6');
       expect(lastFrame()).not.toContain('lines hidden');

packages/cli/src/ui/components/__snapshots__/AskUserDialog.test.tsx.snap

@@ -36,6 +36,22 @@ Enter to select · ↑/↓ to navigate · Esc to cancel
 "
 `;
 
+exports[`AskUserDialog > Scroll Arrows (useAlternateBuffer: false) > shows scroll arrows correctly when useAlternateBuffer is false 2`] = `
+"Choose an option
+
+▲
+●  1.  Option 1
+       Description 1
+   2.  Option 2
+       Description 2
+   3.  Option 3
+       Description 3
+▼
+
+Enter to select · ↑/↓ to navigate · Esc to cancel
+"
+`;
+
 exports[`AskUserDialog > Scroll Arrows (useAlternateBuffer: true) > shows scroll arrows correctly when useAlternateBuffer is true 1`] = `
 "Choose an option
 

packages/cli/src/ui/components/shared/MaxSizedBox.tsx

@@ -26,6 +26,7 @@ interface MaxSizedBoxProps {
   maxHeight?: number;
   overflowDirection?: 'top' | 'bottom';
   additionalHiddenLinesCount?: number;
+  onHeightChange?: (height: number) => void;
 }
 
 /**
@@ -38,6 +39,7 @@ export const MaxSizedBox: React.FC<MaxSizedBoxProps> = ({
   maxHeight,
   overflowDirection = 'top',
   additionalHiddenLinesCount = 0,
+  onHeightChange,
 }) => {
   const id = useId();
   const { addOverflowingId, removeOverflowingId } = useOverflowActions() || {};
@@ -80,6 +82,18 @@ export const MaxSizedBox: React.FC<MaxSizedBoxProps> = ({
       ? effectiveMaxHeight - 1
       : effectiveMaxHeight;
 
+  const actualHeight =
+    visibleContentHeight !== undefined
+      ? Math.min(contentHeight, visibleContentHeight)
+      : contentHeight;
+
+  const totalActualHeight =
+    actualHeight + (isOverflowing && effectiveMaxHeight !== undefined ? 1 : 0);
+
+  useEffect(() => {
+    onHeightChange?.(totalActualHeight);
+  }, [totalActualHeight, onHeightChange]);
+
   const hiddenLinesCount =
     visibleContentHeight !== undefined
       ? Math.max(0, contentHeight - visibleContentHeight)