style(ui): iterate on loading and error strings for precise conciseness

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

@@ -76,7 +76,7 @@ export const DetailedMessagesDisplay: React.FC<
     >
       <Box marginBottom={1}>
         <Text bold color={theme.text.primary}>
-          Debug Console <Text color={theme.text.secondary}>(F12 to close)</Text>
+          Debug console <Text color={theme.text.secondary}>(F12 to close)</Text>
         </Text>
       </Box>
       <Box height={maxHeight} width={width - borderAndPadding}>

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

@@ -65,10 +65,10 @@ export const LoadingIndicator: React.FC<LoadingIndicatorProps> = ({
     currentLoadingPhrase === INTERACTIVE_SHELL_WAITING_PHRASE
       ? currentLoadingPhrase
       : thought?.subject
-        ? (thoughtLabel ?? thought.subject)
+        ? `Gemini is thinking about ${thoughtLabel ?? thought.subject.trim()}`
         : currentLoadingPhrase ||
           (streamingState === StreamingState.Responding
-            ? 'Thinking...'
+            ? 'Gemini is thinking...'
             : undefined);
 
   const cancelAndTimerContent =
@@ -81,7 +81,7 @@ export const LoadingIndicator: React.FC<LoadingIndicatorProps> = ({
     !forceRealStatusOnly &&
     showWit &&
     wittyPhrase &&
-    primaryText === 'Thinking...' ? (
+    (primaryText === 'Thinking...' || primaryText === 'Gemini is thinking...') ? (
       <Box marginLeft={1}>
         <Text color={theme.text.secondary} dimColor italic>
           {wittyPhrase}

packages/cli/src/ui/hooks/useGeminiStream.test.tsx

@@ -1048,7 +1048,7 @@ describe('useGeminiStream', () => {
     ).toBe(false);
     expect(
       infoTexts.some((text) =>
-        text.includes('This request failed. Press F12 for diagnostics'),
+        text.includes('Request failed. Press F12 for diagnostics'),
       ),
     ).toBe(false);
   });
@@ -1108,15 +1108,13 @@ describe('useGeminiStream', () => {
       ([item]) => (item as { text?: string }).text ?? '',
     );
     const noteIndex = infoTexts.findIndex((text) =>
-      text.includes(
-        'Some internal tool attempts failed before this final error',
-      ),
+      text.includes('Previous tool attempts failed'),
     );
     const stopIndex = infoTexts.findIndex((text) =>
       text.includes('Agent execution stopped: Stop reason from hook'),
     );
     const failureHintIndex = infoTexts.findIndex((text) =>
-      text.includes('This request failed. Press F12 for diagnostics'),
+      text.includes('Request failed. Press F12 for diagnostics'),
     );
     expect(noteIndex).toBeGreaterThanOrEqual(0);
     expect(stopIndex).toBeGreaterThanOrEqual(0);

packages/cli/src/ui/hooks/useGeminiStream.ts

@@ -110,9 +110,9 @@ enum StreamProcessingStatus {
 }
 
 const SUPPRESSED_TOOL_ERRORS_NOTE =
-  'Some internal tool attempts failed before this final error. Press F12 for diagnostics, or run /settings and change "Error Verbosity" to full for details.';
+  'Previous tool attempts failed. Press F12 for diagnostics or set ui.errorVerbosity=full for details';
 const LOW_VERBOSITY_FAILURE_NOTE =
-  'This request failed. Press F12 for diagnostics, or run /settings and change "Error Verbosity" to full for full details.';
+  'Request failed. Press F12 for diagnostics or set ui.errorVerbosity=full for details';
 
 function getBackgroundedToolInfo(
   toolCall: TrackedCompletedToolCall | TrackedCancelledToolCall,

packages/cli/src/ui/hooks/useLoadingIndicator.test.tsx

@@ -237,7 +237,7 @@ describe('useLoadingIndicator', () => {
       retryStatus,
     );
 
-    expect(result.current.currentLoadingPhrase).toContain('Trying to reach');
+    expect(result.current.currentLoadingPhrase).toContain('Retrying');
     expect(result.current.currentLoadingPhrase).toContain('Attempt 3/3');
   });
 
@@ -258,7 +258,7 @@ describe('useLoadingIndicator', () => {
     );
 
     expect(result.current.currentLoadingPhrase).not.toBe(
-      "This is taking a bit longer, we're still on it.",
+      'System busy. Retrying...',
     );
   });
 
@@ -279,7 +279,7 @@ describe('useLoadingIndicator', () => {
     );
 
     expect(result.current.currentLoadingPhrase).toBe(
-      "This is taking a bit longer, we're still on it.",
+      'System busy. Retrying...',
     );
   });
 

packages/cli/src/ui/hooks/useLoadingIndicator.ts

@@ -82,9 +82,9 @@ export const useLoadingIndicator = ({
   const retryPhrase = retryStatus
     ? errorVerbosity === 'low'
       ? retryStatus.attempt >= LOW_VERBOSITY_RETRY_HINT_ATTEMPT_THRESHOLD
-        ? "This is taking a bit longer, we're still on it."
+        ? 'System busy. Retrying...'
         : null
-      : `Trying to reach ${getDisplayString(retryStatus.model)} (Attempt ${retryStatus.attempt + 1}/${retryStatus.maxAttempts})`
+      : `Retrying ${getDisplayString(retryStatus.model)} (Attempt ${retryStatus.attempt + 1}/${retryStatus.maxAttempts})`
     : null;
 
   return {

packages/core/src/utils/errorParsing.test.ts

@@ -11,8 +11,8 @@ import { AuthType } from '../core/contentGenerator.js';
 import type { StructuredError } from '../core/turn.js';
 
 describe('parseAndFormatApiError', () => {
-  const vertexMessage = 'request a quota increase through Vertex';
-  const geminiMessage = 'request a quota increase through AI Studio';
+  const vertexMessage = 'request a quota increase in Vertex';
+  const geminiMessage = 'request a quota increase in AI Studio';
 
   it('should format a valid API error JSON', () => {
     const errorMessage =
@@ -34,7 +34,7 @@ describe('parseAndFormatApiError', () => {
     );
     expect(result).toContain('[API Error: Rate limit exceeded');
     expect(result).toContain(
-      'Possible quota limitations in place or slow response times detected. Switching to the gemini-2.5-flash model',
+      'System busy or quota limit reached. Switching to gemini-2.5-flash for the rest of this session.',
     );
   });
 

packages/core/src/utils/errorParsing.ts

@@ -10,13 +10,13 @@ import type { UserTierId } from '../code_assist/types.js';
 import { AuthType } from '../core/contentGenerator.js';
 
 const RATE_LIMIT_ERROR_MESSAGE_USE_GEMINI =
-  '\nPlease wait and try again later. To increase your limits, request a quota increase through AI Studio, or switch to another /auth method';
+  '\nRate limit reached. Try again later, request a quota increase in AI Studio, or switch /auth method';
 const RATE_LIMIT_ERROR_MESSAGE_VERTEX =
-  '\nPlease wait and try again later. To increase your limits, request a quota increase through Vertex, or switch to another /auth method';
+  '\nRate limit reached. Try again later, request a quota increase in Vertex, or switch /auth method';
 const getRateLimitErrorMessageDefault = (
   fallbackModel: string = DEFAULT_GEMINI_FLASH_MODEL,
 ) =>
-  `\nPossible quota limitations in place or slow response times detected. Switching to the ${fallbackModel} model for the rest of this session.`;
+  `\nSystem busy or quota limit reached. Switching to ${fallbackModel} for the rest of this session.`;
 
 function getRateLimitMessage(
   authType?: AuthType,