fix(cli) - Add logging for shell errors (#7007)

Co-authored-by: Shi Shu <shii@google.com>
Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/core/src/tools/shell.test.ts

@@ -36,6 +36,7 @@ import { EOL } from 'node:os';
 import * as path from 'node:path';
 import * as crypto from 'node:crypto';
 import * as summarizer from '../utils/summarizer.js';
+import { ToolErrorType } from './tool-error.js';
 import { ToolConfirmationOutcome } from './tools.js';
 import { OUTPUT_UPDATE_INTERVAL_MS } from './shell.js';
 import { createMockWorkspaceContext } from '../test-utils/mockWorkspaceContext.js';
@@ -207,6 +208,22 @@ describe('ShellTool', () => {
       expect(result.llmContent).not.toContain('pgrep');
     });
 
+    it('should return a SHELL_EXECUTE_ERROR for a command failure', async () => {
+      const error = new Error('command failed');
+      const invocation = shellTool.build({ command: 'user-command' });
+      const promise = invocation.execute(mockAbortSignal);
+      resolveShellExecution({
+        error,
+        exitCode: 1,
+      });
+
+      const result = await promise;
+
+      expect(result.error).toBeDefined();
+      expect(result.error?.type).toBe(ToolErrorType.SHELL_EXECUTE_ERROR);
+      expect(result.error?.message).toBe('command failed');
+    });
+
     it('should throw an error for invalid parameters', () => {
       expect(() => shellTool.build({ command: '' })).toThrow(
         'Command cannot be empty.',

packages/core/src/tools/shell.ts

@@ -9,6 +9,7 @@ import path from 'node:path';
 import os, { EOL } from 'node:os';
 import crypto from 'node:crypto';
 import type { Config } from '../config/config.js';
+import { ToolErrorType } from './tool-error.js';
 import type {
   ToolInvocation,
   ToolResult,
@@ -263,6 +264,14 @@ class ShellToolInvocation extends BaseToolInvocation<
       }
 
       const summarizeConfig = this.config.getSummarizeToolOutputConfig();
+      const executionError = result.error
+        ? {
+            error: {
+              message: result.error.message,
+              type: ToolErrorType.SHELL_EXECUTE_ERROR,
+            },
+          }
+        : {};
       if (summarizeConfig && summarizeConfig[ShellTool.Name]) {
         const summary = await summarizeToolOutput(
           llmContent,
@@ -273,12 +282,14 @@ class ShellToolInvocation extends BaseToolInvocation<
         return {
           llmContent: summary,
           returnDisplay: returnDisplayMessage,
+          ...executionError,
         };
       }
 
       return {
         llmContent,
         returnDisplay: returnDisplayMessage,
+        ...executionError,
       };
     } finally {
       if (fs.existsSync(tempFilePath)) {

packages/core/src/tools/tool-error.ts

@@ -53,6 +53,9 @@ export enum ToolErrorType {
   // ReadManyFiles-specific Errors
   READ_MANY_FILES_SEARCH_ERROR = 'read_many_files_search_error',
 
+  // Shell errors
+  SHELL_EXECUTE_ERROR = 'shell_execute_error',
+
   // DiscoveredTool-specific Errors
   DISCOVERED_TOOL_EXECUTION_ERROR = 'discovered_tool_execution_error',