feat(core): Save large tool outputs to a file and return truncated lines (#6240)

packages/cli/src/ui/components/messages/ToolGroupMessage.tsx

@@ -6,7 +6,7 @@
 
 import type React from 'react';
 import { useMemo } from 'react';
-import { Box } from 'ink';
+import { Box, Text } from 'ink';
 import type { IndividualToolCallDisplay } from '../../types.js';
 import { ToolCallStatus } from '../../types.js';
 import { ToolMessage } from './ToolMessage.js';
@@ -121,6 +121,11 @@ export const ToolGroupMessage: React.FC<ToolGroupMessageProps> = ({
                   terminalWidth={innerWidth}
                 />
               )}
+            {tool.outputFile && (
+              <Box marginX={1}>
+                <Text>Output too long and was saved to: {tool.outputFile}</Text>
+              </Box>
+            )}
           </Box>
         );
       })}