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

packages/cli/src/config/config.ts

@@ -622,6 +622,8 @@ export async function loadCliConfig(
     shouldUseNodePtyShell: settings.tools?.usePty,
     skipNextSpeakerCheck: settings.model?.skipNextSpeakerCheck,
     enablePromptCompletion: settings.general?.enablePromptCompletion ?? false,
+    truncateToolOutputThreshold: settings.tools?.truncateToolOutputThreshold,
+    truncateToolOutputLines: settings.tools?.truncateToolOutputLines,
     eventEmitter: appEvents,
     useSmartEdit: argv.useSmartEdit ?? settings.useSmartEdit,
   });

packages/cli/src/config/settingsSchema.ts

@@ -11,6 +11,10 @@ import type {
   AuthType,
   ChatCompressionSettings,
 } from '@google/gemini-cli-core';
+import {
+  DEFAULT_TRUNCATE_TOOL_OUTPUT_LINES,
+  DEFAULT_TRUNCATE_TOOL_OUTPUT_THRESHOLD,
+} from '@google/gemini-cli-core';
 import type { CustomTheme } from '../ui/themes/theme.js';
 
 export enum MergeStrategy {
@@ -654,6 +658,25 @@ export const SETTINGS_SCHEMA = {
           'Use ripgrep for file content search instead of the fallback implementation. Provides faster search performance.',
         showInDialog: true,
       },
+      truncateToolOutputThreshold: {
+        type: 'number',
+        label: 'Tool Output Truncation Threshold',
+        category: 'General',
+        requiresRestart: false,
+        default: DEFAULT_TRUNCATE_TOOL_OUTPUT_THRESHOLD,
+        description:
+          'Truncate tool output if it is larger than this many characters. Set to -1 to disable.',
+        showInDialog: true,
+      },
+      truncateToolOutputLines: {
+        type: 'number',
+        label: 'Tool Output Truncation Lines',
+        category: 'General',
+        requiresRestart: false,
+        default: DEFAULT_TRUNCATE_TOOL_OUTPUT_LINES,
+        description: 'The number of lines to keep when truncating tool output.',
+        showInDialog: true,
+      },
     },
   },