feat: Add --yolo mode that automatically accepts all tools executions (#695)

Co-authored-by: N. Taylor Mullen <ntaylormullen@google.com>

packages/core/src/config/config.ts

@@ -22,6 +22,12 @@ import { ReadManyFilesTool } from '../tools/read-many-files.js';
 import { MemoryTool, setGeminiMdFilename } from '../tools/memoryTool.js';
 import { WebSearchTool } from '../tools/web-search.js';
 
+export enum ApprovalMode {
+  DEFAULT = 'default',
+  AUTO_EDIT = 'autoEdit',
+  YOLO = 'yolo',
+}
+
 export class MCPServerConfig {
   constructor(
     // For stdio transport
@@ -53,7 +59,7 @@ export interface ConfigParameters {
   userAgent: string;
   userMemory?: string;
   geminiMdFileCount?: number;
-  alwaysSkipModificationConfirmation?: boolean;
+  approvalMode?: ApprovalMode;
   vertexai?: boolean;
   showMemoryUsage?: boolean;
   contextFileName?: string;
@@ -76,7 +82,7 @@ export class Config {
   private readonly userAgent: string;
   private userMemory: string;
   private geminiMdFileCount: number;
-  private alwaysSkipModificationConfirmation: boolean;
+  private approvalMode: ApprovalMode;
   private readonly vertexai: boolean | undefined;
   private readonly showMemoryUsage: boolean;
 
@@ -96,8 +102,7 @@ export class Config {
     this.userAgent = params.userAgent;
     this.userMemory = params.userMemory ?? '';
     this.geminiMdFileCount = params.geminiMdFileCount ?? 0;
-    this.alwaysSkipModificationConfirmation =
-      params.alwaysSkipModificationConfirmation ?? false;
+    this.approvalMode = params.approvalMode ?? ApprovalMode.DEFAULT;
     this.vertexai = params.vertexai;
     this.showMemoryUsage = params.showMemoryUsage ?? false;
 
@@ -179,12 +184,12 @@ export class Config {
     this.geminiMdFileCount = count;
   }
 
-  getAlwaysSkipModificationConfirmation(): boolean {
-    return this.alwaysSkipModificationConfirmation;
+  getApprovalMode(): ApprovalMode {
+    return this.approvalMode;
   }
 
-  setAlwaysSkipModificationConfirmation(skip: boolean): void {
-    this.alwaysSkipModificationConfirmation = skip;
+  setApprovalMode(mode: ApprovalMode): void {
+    this.approvalMode = mode;
   }
 
   getVertexAI(): boolean | undefined {