diff --git a/src/hooks/useSettings.ts b/src/hooks/useSettings.ts
index 618e617..eee69b1 100644
--- a/src/hooks/useSettings.ts
+++ b/src/hooks/useSettings.ts
@@ -5,6 +5,7 @@ import { useState, useEffect, useCallback } from 'react';
 export interface Settings {
   cchUrl: string;
   cchApiKeyConfigured: boolean;
+  metasoApiKeyConfigured: boolean;
   apiFormat: 'claude' | 'openai';
   defaultModel: string;
   defaultTools: string[];
@@ -51,9 +52,10 @@ export interface Model {
 const defaultSettings: Settings = {
   cchUrl: 'http://localhost:13500',
   cchApiKeyConfigured: false,
+  metasoApiKeyConfigured: false,
   apiFormat: 'claude',
   defaultModel: 'claude-sonnet-4-5-20250929',
-  defaultTools: ['web_search', 'web_fetch'],
+  defaultTools: ['web_search', 'web_fetch', 'mita_search', 'mita_reader'],
   systemPrompt: '',
   temperature: '0.7',
   theme: 'light',
@@ -88,7 +90,7 @@ export function useSettings() {
   }, []);
 
   // 更新设置
-  const updateSettings = useCallback(async (updates: Partial<Settings & { cchApiKey?: string }>) => {
+  const updateSettings = useCallback(async (updates: Partial<Settings & { cchApiKey?: string; metasoApiKey?: string }>) => {
     try {
       setSaving(true);
       setError(null);
diff --git a/src/hooks/useStreamChat.ts b/src/hooks/useStreamChat.ts
index 9020254..eb677ce 100644
--- a/src/hooks/useStreamChat.ts
+++ b/src/hooks/useStreamChat.ts
@@ -4,7 +4,7 @@ import { useState, useCallback, useRef } from 'react';
 import { executePythonInPyodide, type LoadingCallback } from '@/services/tools/pyodideRunner';
 
 export interface StreamMessage {
-  type: 'thinking' | 'text' | 'tool_use_start' | 'tool_execution_result' | 'pyodide_execution_required' | 'done' | 'error';
+  type: 'thinking' | 'text' | 'tool_use_start' | 'tool_execution_result' | 'tool_search_images' | 'pyodide_execution_required' | 'tool_used' | 'done' | 'error';
   content?: string;
   id?: string;
   name?: string;
@@ -19,6 +19,22 @@ export interface StreamMessage {
   success?: boolean;
   result?: string;
   images?: string[];
+  // 搜索到的图片
+  searchImages?: SearchImageData[];
+  // 工具使用相关
+  toolName?: string;
+  usedTools?: string[];
+}
+
+// 搜索图片数据类型
+export interface SearchImageData {
+  title: string;
+  imageUrl: string;
+  width: number;
+  height: number;
+  score: string;
+  position: number;
+  sourceUrl?: string;
 }
 
 export interface ChatMessage {
@@ -32,10 +48,14 @@ export interface ChatMessage {
   outputTokens?: number;
   // 工具执行产生的图片
   images?: string[];
+  // 搜索到的图片
+  searchImages?: SearchImageData[];
   // 用户上传的图片（Base64）
   uploadedImages?: string[];
   // 用户上传的文档
   uploadedDocuments?: UploadedDocument[];
+  // 使用的工具列表
+  usedTools?: string[];
   // Pyodide 加载状态
   pyodideStatus?: {
     stage: 'loading' | 'ready' | 'error';
@@ -67,6 +87,29 @@ async function saveMessageImages(messageId: string, images: string[]): Promise<v
   }
 }
 
+/**
+ * 保存搜索到的图片到数据库
+ */
+async function saveMessageSearchImages(messageId: string, searchImages: SearchImageData[]): Promise<void> {
+  if (!messageId || !searchImages || searchImages.length === 0) return;
+
+  try {
+    const response = await fetch(`/api/messages/${messageId}`, {
+      method: 'PATCH',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({ searchImages }),
+    });
+
+    if (!response.ok) {
+      console.error('Failed to save search images:', await response.text());
+    }
+  } catch (error) {
+    console.error('Error saving search images:', error);
+  }
+}
+
 /**
  * 将文件转换为 Base64
  */
@@ -159,6 +202,8 @@ export function useStreamChat() {
   const abortControllerRef = useRef<AbortController | null>(null);
   // 临时存储 Pyodide 执行产生的图片，等待 messageId
   const pendingImagesRef = useRef<string[]>([]);
+  // 临时存储搜索到的图片，等待 messageId
+  const pendingSearchImagesRef = useRef<SearchImageData[]>([]);
 
   // 发送消息
   const sendMessage = useCallback(async (options: {
@@ -371,6 +416,47 @@ export function useStreamChat() {
                     return updated;
                   });
                 }
+              } else if (event.type === 'tool_search_images') {
+                // 处理图片搜索结果
+                if (event.searchImages && event.searchImages.length > 0) {
+                  // 存储到临时变量，等待 messageId 后保存到数据库
+                  pendingSearchImagesRef.current = [
+                    ...pendingSearchImagesRef.current,
+                    ...event.searchImages,
+                  ];
+                  // 更新 UI
+                  setMessages((prev) => {
+                    const updated = [...prev];
+                    const lastIndex = updated.length - 1;
+                    if (updated[lastIndex]?.role === 'assistant') {
+                      const existingSearchImages = updated[lastIndex].searchImages || [];
+                      updated[lastIndex] = {
+                        ...updated[lastIndex],
+                        searchImages: [...existingSearchImages, ...event.searchImages!],
+                      };
+                    }
+                    return updated;
+                  });
+                }
+              } else if (event.type === 'tool_used') {
+                // 实时工具使用事件
+                if (event.toolName) {
+                  setMessages((prev) => {
+                    const updated = [...prev];
+                    const lastIndex = updated.length - 1;
+                    if (updated[lastIndex]?.role === 'assistant') {
+                      const existingTools = updated[lastIndex].usedTools || [];
+                      // 避免重复添加
+                      if (!existingTools.includes(event.toolName!)) {
+                        updated[lastIndex] = {
+                          ...updated[lastIndex],
+                          usedTools: [...existingTools, event.toolName!],
+                        };
+                      }
+                    }
+                    return updated;
+                  });
+                }
               } else if (event.type === 'pyodide_execution_required') {
                 // 需要在浏览器端执行 Python 图形代码
                 const code = event.code || '';
@@ -444,16 +530,25 @@ export function useStreamChat() {
                   pendingImagesRef.current = []; // 清空临时存储
                 }
 
+                // 如果有待保存的搜索图片，保存到数据库
+                if (event.messageId && pendingSearchImagesRef.current.length > 0) {
+                  saveMessageSearchImages(event.messageId, pendingSearchImagesRef.current);
+                  pendingSearchImagesRef.current = []; // 清空临时存储
+                }
+
                 setMessages((prev) => {
                   const updated = [...prev];
                   const lastIndex = updated.length - 1;
                   if (updated[lastIndex]?.role === 'assistant') {
+                    // 如果 done 事件包含 usedTools，使用它（保证完整性）
+                    const finalUsedTools = event.usedTools || updated[lastIndex].usedTools;
                     updated[lastIndex] = {
                       ...updated[lastIndex],
                       id: event.messageId || updated[lastIndex].id,
                       status: 'completed',
                       inputTokens: event.inputTokens,
                       outputTokens: event.outputTokens,
+                      usedTools: finalUsedTools,
                     };
                   }
                   return updated;