diff --git a/web/src/composables/useAuth.ts b/web/src/composables/useAuth.ts
new file mode 100644
index 0000000..079092d
--- /dev/null
+++ b/web/src/composables/useAuth.ts
@@ -0,0 +1,114 @@
+const API_BASE = 'http://localhost:8082'
+
+export interface LoginRequest {
+  username: string
+  password: string
+}
+
+export interface RegisterRequest {
+  username: string
+  password: string
+  email?: string
+}
+
+export interface LoginResponse {
+  token: string
+  user: any
+}
+
+export const useAuth = () => {
+  const token = localStorage.getItem('token')
+  const user = localStorage.getItem('user')
+
+  const login = async (data: LoginRequest): Promise<LoginResponse> => {
+    const response = await fetch(`${API_BASE}/auth/login`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(data),
+    })
+
+    if (!response.ok) {
+      const error = await response.json()
+      throw new Error(error.message || 'Login failed')
+    }
+
+    const result = await response.json()
+
+    // Save token and user info
+    localStorage.setItem('token', result.token)
+    localStorage.setItem('user', JSON.stringify(result.user))
+
+    return result
+  }
+
+  const register = async (data: RegisterRequest): Promise<any> => {
+    const response = await fetch(`${API_BASE}/auth/register`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(data),
+    })
+
+    if (!response.ok) {
+      const error = await response.json()
+      throw new Error(error.message || 'Registration failed')
+    }
+
+    return await response.json()
+  }
+
+  const logout = () => {
+    localStorage.removeItem('token')
+    localStorage.removeItem('user')
+  }
+
+  const getToken = () => {
+    return localStorage.getItem('token')
+  }
+
+  const getUser = () => {
+    const userStr = localStorage.getItem('user')
+    return userStr ? JSON.parse(userStr) : null
+  }
+
+  const isLoggedIn = () => {
+    return !!token
+  }
+
+  const getCurrentUser = async () => {
+    const token = localStorage.getItem('token')
+    if (!token) {
+      throw new Error('Not authenticated')
+    }
+
+    const response = await fetch(`${API_BASE}/auth/me`, {
+      method: 'GET',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${token}`,
+      },
+    })
+
+    if (!response.ok) {
+      const error = await response.json()
+      throw new Error(error.message || 'Failed to get user')
+    }
+
+    const user = await response.json()
+    localStorage.setItem('user', JSON.stringify(user))
+    return user
+  }
+
+  return {
+    login,
+    register,
+    logout,
+    getToken,
+    getUser,
+    isLoggedIn,
+    getCurrentUser,
+  }
+}
diff --git a/web/src/views/Login.vue b/web/src/views/Login.vue
index 531d479..68dc3ce 100644
--- a/web/src/views/Login.vue
+++ b/web/src/views/Login.vue
@@ -1,8 +1,11 @@
 <script setup lang="ts">
-import { ref } from 'vue'
-import { useRouter } from 'vue-router'
+import { ref, onMounted } from 'vue'
+import { useRouter, useRoute } from 'vue-router'
+import { useAuth } from '@/composables/useAuth'
 
 const router = useRouter()
+const route = useRoute()
+const { login } = useAuth()
 
 // 表单数据
 const username = ref('')
@@ -11,23 +14,38 @@ const rememberMe = ref(false)
 const isLoading = ref(false)
 const showPassword = ref(false)
 const errorMsg = ref('')
+const successMsg = ref('')
 
-// 模拟登录验证
-const handleLogin = () => {
+// 检查是否从注册页跳转过来
+onMounted(() => {
+  if (route.query.registered === 'true') {
+    successMsg.value = 'Account created successfully! Please sign in.'
+  }
+})
+
+// 登录处理
+const handleLogin = async () => {
   errorMsg.value = ''
 
-  if (username.value !== 'admin' || password.value !== 'admin') {
-    errorMsg.value = 'Invalid username or password'
+  if (!username.value || !password.value) {
+    errorMsg.value = 'Please enter username and password'
     return
   }
 
   isLoading.value = true
-  // 模拟登录
-  setTimeout(() => {
-    isLoading.value = false
+
+  try {
+    await login({
+      username: username.value,
+      password: password.value,
+    })
     // 登录成功，跳转到 Dashboard
-    router.push('/dashboard')
-  }, 1500)
+    router.push('/chat')
+  } catch (error: any) {
+    errorMsg.value = error.message || 'Login failed, please check your credentials'
+  } finally {
+    isLoading.value = false
+  }
 }
 </script>
 
@@ -52,6 +70,12 @@ const handleLogin = () => {
 
       <!-- 登录表单 -->
       <div class="bg-dark-700 rounded-2xl p-8 shadow-xl border border-dark-500/50">
+        <!-- 成功提示 -->
+        <div v-if="successMsg" class="mb-4 p-3 bg-green-500/10 border border-green-500/30 rounded-lg text-green-400 text-sm flex items-center gap-2">
+          <i class="fa-solid fa-check-circle"></i>
+          {{ successMsg }}
+        </div>
+
         <!-- 错误提示 -->
         <div v-if="errorMsg" class="mb-4 p-3 bg-red-500/10 border border-red-500/30 rounded-lg text-red-400 text-sm flex items-center gap-2">
           <i class="fa-solid fa-circle-exclamation"></i>
diff --git a/web/src/views/Signup.vue b/web/src/views/Signup.vue
index ee70b9b..96ade61 100644
--- a/web/src/views/Signup.vue
+++ b/web/src/views/Signup.vue
@@ -1,8 +1,10 @@
 <script setup lang="ts">
 import { ref } from 'vue'
 import { useRouter } from 'vue-router'
+import { useAuth } from '@/composables/useAuth'
 
 const router = useRouter()
+const { register } = useAuth()
 
 // 表单数据
 const username = ref('')
@@ -14,6 +16,7 @@ const isLoading = ref(false)
 const showPassword = ref(false)
 const showConfirmPassword = ref(false)
 const errorMsg = ref('')
+const successMsg = ref('')
 
 // 表单验证
 const validateForm = () => {
@@ -24,11 +27,6 @@ const validateForm = () => {
     return false
   }
 
-  if (!email.value || !/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email.value)) {
-    errorMsg.value = 'Please enter a valid email address'
-    return false
-  }
-
   if (!password.value || password.value.length < 6) {
     errorMsg.value = 'Password must be at least 6 characters'
     return false
@@ -48,21 +46,34 @@ const validateForm = () => {
 }
 
 // 注册处理
-const handleSignup = () => {
+const handleSignup = async () => {
   if (!validateForm()) return
 
   isLoading.value = true
-  // 模拟注册
-  setTimeout(() => {
+  errorMsg.value = ''
+  successMsg.value = ''
+
+  try {
+    await register({
+      username: username.value,
+      password: password.value,
+      email: email.value || undefined,
+    })
+    // 注册成功
+    successMsg.value = 'Account created successfully! Redirecting to login...'
+    setTimeout(() => {
+      router.push('/?registered=true')
+    }, 1500)
+  } catch (error: any) {
+    errorMsg.value = error.message || 'Registration failed, please try again'
+  } finally {
     isLoading.value = false
-    // 注册成功，跳转到登录页
-    router.push('/')
-  }, 1500)
+  }
 }
 
 // 跳转到登录
 const goToLogin = () => {
-  router.push('/')
+  router.push('/?registered=true')
 }
 </script>
 
@@ -87,6 +98,12 @@ const goToLogin = () => {
 
       <!-- 注册表单 -->
       <div class="bg-dark-700 rounded-2xl p-8 shadow-xl border border-dark-500/50">
+        <!-- 成功提示 -->
+        <div v-if="successMsg" class="mb-4 p-3 bg-green-500/10 border border-green-500/30 rounded-lg text-green-400 text-sm flex items-center gap-2">
+          <i class="fa-solid fa-check-circle"></i>
+          {{ successMsg }}
+        </div>
+
         <!-- 错误提示 -->
         <div v-if="errorMsg" class="mb-4 p-3 bg-red-500/10 border border-red-500/30 rounded-lg text-red-400 text-sm flex items-center gap-2">
           <i class="fa-solid fa-circle-exclamation"></i>
diff --git a/web/src/views/tools/useTools.ts b/web/src/views/tools/useTools.ts
new file mode 100644
index 0000000..18a1cd1
--- /dev/null
+++ b/web/src/views/tools/useTools.ts
@@ -0,0 +1,146 @@
+const API_BASE = 'http://localhost:8082'
+
+// Tool 接口
+export interface Tool {
+  id: string
+  name: string
+  description: string
+  category: string
+  provider: string
+  security_level: string
+  require_approval: boolean
+  parameters: string
+  status: string
+  created_at?: string
+  updated_at?: string
+}
+
+export function useTools() {
+  const tools = ref<Tool[]>([])
+  const toolsLoading = ref(false)
+
+  // 获取工具列表
+  const fetchTools = async (category?: string, status?: string) => {
+    toolsLoading.value = true
+    try {
+      let url = `${API_BASE}/tool/list?`
+      if (category) url += `category=${category}&`
+      if (status) url += `status=${status}&`
+
+      const response = await fetch(url)
+      const data = await response.json()
+
+      if (data.list) {
+        tools.value = data.list
+      }
+      return data.list || []
+    } catch (error) {
+      console.error('Failed to fetch tools:', error)
+      return []
+    } finally {
+      toolsLoading.value = false
+    }
+  }
+
+  // 同步工具到数据库
+  const syncTools = async () => {
+    try {
+      const response = await fetch(`${API_BASE}/tool/sync`)
+      const data = await response.json()
+      await fetchTools() // 重新获取列表
+      return data
+    } catch (error) {
+      console.error('Failed to sync tools:', error)
+      throw error
+    }
+  }
+
+  // 获取工具详情
+  const fetchToolById = async (id: string) => {
+    try {
+      const response = await fetch(`${API_BASE}/tool/${id}`)
+      const data = await response.json()
+      return data.tool
+    } catch (error) {
+      console.error('Failed to fetch tool:', error)
+      throw error
+    }
+  }
+
+  // 创建工具
+  const createTool = async (tool: Partial<Tool>) => {
+    try {
+      const response = await fetch(`${API_BASE}/tool/add`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(tool),
+      })
+      const data = await response.json()
+      await fetchTools() // 重新获取列表
+      return data
+    } catch (error) {
+      console.error('Failed to create tool:', error)
+      throw error
+    }
+  }
+
+  // 更新工具
+  const updateTool = async (id: string, tool: Partial<Tool>) => {
+    try {
+      const response = await fetch(`${API_BASE}/tool/${id}`, {
+        method: 'PUT',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(tool),
+      })
+      const data = await response.json()
+      await fetchTools() // 重新获取列表
+      return data
+    } catch (error) {
+      console.error('Failed to update tool:', error)
+      throw error
+    }
+  }
+
+  // 删除工具
+  const deleteTool = async (id: string) => {
+    try {
+      const response = await fetch(`${API_BASE}/tool/${id}`, {
+        method: 'DELETE',
+      })
+      const data = await response.json()
+      await fetchTools() // 重新获取列表
+      return data
+    } catch (error) {
+      console.error('Failed to delete tool:', error)
+      throw error
+    }
+  }
+
+  // 按分类获取工具
+  const getToolsByCategory = (category: string) => {
+    return tools.value.filter(tool => tool.category === category)
+  }
+
+  // 获取所有分类
+  const categories = computed(() => {
+    const cats = new Set(tools.value.map(tool => tool.category))
+    return Array.from(cats)
+  })
+
+  return {
+    tools,
+    toolsLoading,
+    categories,
+    fetchTools,
+    syncTools,
+    fetchToolById,
+    createTool,
+    updateTool,
+    deleteTool,
+    getToolsByCategory,
+  }
+}