diff --git a/client/CustomGoogleGeminiClient.js b/client/CustomGoogleGeminiClient.js
index 87ef625..2e5451f 100644
--- a/client/CustomGoogleGeminiClient.js
+++ b/client/CustomGoogleGeminiClient.js
@@ -222,11 +222,11 @@ export class CustomGoogleGeminiClient extends GoogleGeminiClient {
 
       // ANY要笑死人的效果
       let mode = opt.toolMode || 'AUTO'
-      let lastFuncName = opt.functionResponse?.name
+      let lastFuncName = (/** @type {FunctionResponse[] | undefined}**/ opt.functionResponse)?.map(rsp => rsp.name)
       const mustSendNextTurn = [
         'searchImage', 'searchMusic', 'searchVideo'
       ]
-      if (lastFuncName && mustSendNextTurn.includes(lastFuncName)) {
+      if (lastFuncName && lastFuncName?.find(name => mustSendNextTurn.includes(name))) {
         mode = 'ANY'
       }
       body.tool_config = {
diff --git a/utils/tools/SerpIkechan8370Tool.js b/utils/tools/SerpIkechan8370Tool.js
index 075b059..d5d52d3 100644
--- a/utils/tools/SerpIkechan8370Tool.js
+++ b/utils/tools/SerpIkechan8370Tool.js
@@ -11,7 +11,8 @@ export class SerpIkechan8370Tool extends AbstractTool {
       },
       source: {
         type: 'string',
-        enum: ['google', 'bing', 'baidu']
+        enum: ['google', 'bing', 'baidu', 'duckduckgo'],
+        description: 'search source, default value is bing'
       }
     },
     required: ['q']
@@ -19,8 +20,8 @@ export class SerpIkechan8370Tool extends AbstractTool {
 
   func = async function (opts) {
     let { q, source } = opts
-    if (!source || !['google', 'bing', 'baidu'].includes(source)) {
-      source = 'baidu'
+    if (!source || !['google', 'bing', 'baidu', 'duckduckgo'].includes(source)) {
+      source = 'bing'
     }
     let serpRes = await fetch(`https://serp.ikechan8370.com/${source}?q=${encodeURIComponent(q)}&lang=zh-CN&limit=5`, {
       headers: {