4 files changed, 15 insertions, 8 deletions
diff --git a/packages/core/src/config/config.test.ts b/packages/core/src/config/config.test.ts
index e8f56f75..10fd814f 100644
--- a/packages/core/src/config/config.test.ts
+++ b/packages/core/src/config/config.test.ts
@@ -5,7 +5,7 @@
  */
 
 import { describe, it, expect, vi, beforeEach } from 'vitest';
-import { Config, ConfigParameters } from './config.js';
+import { Config, ConfigParameters, SandboxConfig } from './config.js';
 import * as path from 'path';
 import { setGeminiMdFilename as mockSetGeminiMdFilename } from '../tools/memoryTool.js';
 import {
@@ -53,7 +53,10 @@ vi.mock('../telemetry/index.js', async (importOriginal) => {
 describe('Server Config (config.ts)', () => {
   const API_KEY = 'server-api-key';
   const MODEL = 'gemini-pro';
-  const SANDBOX = false;
+  const SANDBOX: SandboxConfig = {
+    command: 'docker',
+    image: 'gemini-cli-sandbox',
+  };
   const TARGET_DIR = '/path/to/target';
   const DEBUG_MODE = false;
   const QUESTION = 'test question';
diff --git a/packages/core/src/config/config.ts b/packages/core/src/config/config.ts
index c4f46f5e..6caf39e8 100644
--- a/packages/core/src/config/config.ts
+++ b/packages/core/src/config/config.ts
@@ -73,11 +73,16 @@ export class MCPServerConfig {
   ) {}
 }
 
+export interface SandboxConfig {
+  command: 'docker' | 'podman' | 'sandbox-exec';
+  image: string;
+}
+
 export interface ConfigParameters {
   sessionId: string;
   contentGeneratorConfig: ContentGeneratorConfig;
   embeddingModel?: string;
-  sandbox?: boolean | string;
+  sandbox?: SandboxConfig;
   targetDir: string;
   debugMode: boolean;
   question?: string;
@@ -108,7 +113,7 @@ export class Config {
   private readonly sessionId: string;
   private readonly contentGeneratorConfig: ContentGeneratorConfig;
   private readonly embeddingModel: string;
-  private readonly sandbox: boolean | string | undefined;
+  private readonly sandbox: SandboxConfig | undefined;
   private readonly targetDir: string;
   private readonly debugMode: boolean;
   private readonly question: string | undefined;
@@ -198,7 +203,7 @@ export class Config {
     return this.embeddingModel;
   }
 
-  getSandbox(): boolean | string | undefined {
+  getSandbox(): SandboxConfig | undefined {
     return this.sandbox;
   }
 
diff --git a/packages/core/src/telemetry/loggers.ts b/packages/core/src/telemetry/loggers.ts
index 01e83908..985e291c 100644
--- a/packages/core/src/telemetry/loggers.ts
+++ b/packages/core/src/telemetry/loggers.ts
@@ -79,8 +79,7 @@ export function logCliConfiguration(config: Config): void {
     'event.timestamp': new Date().toISOString(),
     model: config.getModel(),
     embedding_model: config.getEmbeddingModel(),
-    sandbox_enabled:
-      typeof config.getSandbox() === 'string' ? true : config.getSandbox(),
+    sandbox_enabled: !!config.getSandbox(),
     core_tools_enabled: (config.getCoreTools() ?? []).join(','),
     approval_mode: config.getApprovalMode(),
     api_key_enabled: !!generatorConfig.apiKey,
diff --git a/packages/core/src/tools/tool-registry.test.ts b/packages/core/src/tools/tool-registry.test.ts
index 5837fd76..87bb47d8 100644
--- a/packages/core/src/tools/tool-registry.test.ts
+++ b/packages/core/src/tools/tool-registry.test.ts
@@ -131,7 +131,7 @@ const baseConfigParams: ConfigParameters = {
     vertexai: false,
   },
   embeddingModel: 'test-embedding-model',
-  sandbox: false,
+  sandbox: undefined,
   targetDir: '/test/dir',
   debugMode: false,
   userMemory: '',