diff --git a/frontend/src/components/Input-field.vue b/frontend/src/components/Input-field.vue
index 665bfbbf..609fab72 100644
--- a/frontend/src/components/Input-field.vue
+++ b/frontend/src/components/Input-field.vue
@@ -100,6 +100,15 @@ const onKeydown = (val: string, event: { e: { preventDefault(): unknown; keyCode
   }
 }
 
+const handleGoToAgentSettings = () => {
+  // 使用 uiStore 打开设置并跳转到 agent 部分
+  uiStore.openSettings('agent');
+  // 如果当前不在设置页面，导航到设置页面
+  if (route.path !== '/platform/settings') {
+    router.push('/platform/settings');
+  }
+}
+
 const toggleAgentMode = () => {
   // 如果要启用 Agent，先检查是否就绪
   // 注意：isAgentReady 是从 store 中计算的，需要确保 store 中的配置是最新的
@@ -114,12 +123,7 @@ const toggleAgentMode = () => {
           href: '#',
           onClick: (e: Event) => {
             e.preventDefault();
-            // 使用 uiStore 打开设置并跳转到 agent 部分
-            uiStore.openSettings('agent');
-            // 如果当前不在设置页面，导航到设置页面
-            if (route.path !== '/platform/settings') {
-              router.push('/platform/settings');
-            }
+            handleGoToAgentSettings();
           },
           style: 'color: #07C05F; text-decoration: none; font-weight: 500; cursor: pointer; white-space: nowrap; flex-shrink: 0;',
           onMouseenter: (e: Event) => {
@@ -169,9 +173,26 @@ onBeforeRouteUpdate((to, from, next) => {
       <div class="control-left">
         <!-- Agent 模式按钮 -->
         <t-tooltip 
-          :content="isAgentEnabled ? 'Agent 模式（已启用）' : (settingsStore.isAgentReady ? 'Agent 模式（已禁用，点击启用）' : 'Agent 未就绪，请先完成配置')" 
           placement="top"
+          :show-arrow="true"
+          :duration="0"
         >
+          <template #content>
+            <div style="display: flex; flex-direction: column; gap: 4px; align-items: flex-start;">
+              <span>
+                {{ isAgentEnabled ? 'Agent 模式（已启用）' : (settingsStore.isAgentReady ? 'Agent 模式（已禁用，点击启用）' : 'Agent 未就绪，请先完成配置') }}
+              </span>
+              <a 
+                href="#"
+                @click.prevent="handleGoToAgentSettings"
+                style="color: #07C05F; text-decoration: none; font-size: 12px; cursor: pointer;"
+                @mouseenter="(e) => e.target.style.textDecoration = 'underline'"
+                @mouseleave="(e) => e.target.style.textDecoration = 'none'"
+              >
+                去设置 Agent →
+              </a>
+            </div>
+          </template>
           <div 
             class="control-btn agent-btn"
             :class="{ 
diff --git a/frontend/src/components/ModelEditorDialog.vue b/frontend/src/components/ModelEditorDialog.vue
index 152bee1c..78a7bc80 100644
--- a/frontend/src/components/ModelEditorDialog.vue
+++ b/frontend/src/components/ModelEditorDialog.vue
@@ -159,9 +159,9 @@
             <t-input 
               v-model.number="formData.dimension" 
               type="number"
-              :min="128"
-              :max="4096"
-              placeholder="如：1536"
+            :min="128"
+            :max="4096"
+            placeholder="如：1536"
               :disabled="formData.source === 'local' && checking"
             />
             <!-- Ollama 本地模型：自动检测维度按钮 -->
@@ -642,14 +642,14 @@ watch(() => formData.value.modelName, async (newValue, oldValue) => {
   
   // 处理下载逻辑
   if (newValue.startsWith('__download__')) {
-    // 提取模型名称
-    const modelName = newValue.replace('__download__', '')
-    
-    // 重置选择（避免显示 __download__ 前缀）
-    formData.value.modelName = ''
-    
-    // 开始下载
-    await startDownload(modelName)
+  // 提取模型名称
+  const modelName = newValue.replace('__download__', '')
+  
+  // 重置选择（避免显示 __download__ 前缀）
+  formData.value.modelName = ''
+  
+  // 开始下载
+  await startDownload(modelName)
     return
   }
   
diff --git a/frontend/src/components/UserMenu.vue b/frontend/src/components/UserMenu.vue
index 5020c88b..17069c52 100644
--- a/frontend/src/components/UserMenu.vue
+++ b/frontend/src/components/UserMenu.vue
@@ -24,10 +24,6 @@
           <t-icon name="server" class="menu-icon" />
           <span>Ollama</span>
         </div>
-        <div class="menu-item" @click="handleQuickNav('knowledge')">
-          <t-icon name="folder-open" class="menu-icon" />
-          <span>知识库</span>
-        </div>
         <div class="menu-divider"></div>
         <div class="menu-item" @click="handleSettings">
           <t-icon name="setting" class="menu-icon" />
diff --git a/frontend/src/components/menu.vue b/frontend/src/components/menu.vue
index 8e8d4caa..7edaf556 100644
--- a/frontend/src/components/menu.vue
+++ b/frontend/src/components/menu.vue
@@ -88,7 +88,7 @@
 
 <script setup lang="ts">
 import { storeToRefs } from 'pinia';
-import { onMounted, watch, computed, ref, reactive, nextTick } from 'vue';
+import { onMounted, watch, computed, ref, reactive, nextTick, h } from 'vue';
 import { useRoute, useRouter } from 'vue-router';
 import { getSessionsList, delSession } from "@/api/chat/index";
 import { getKnowledgeBaseById, listKnowledgeBases, uploadKnowledgeFile } from '@/api/knowledge-base';
@@ -342,7 +342,36 @@ const upload = async (e: any) => {
         } else if (err.message) {
             errorMessage = err.message;
         }
-        MessagePlugin.error(errorMessage);
+        
+        // 如果是 VLM 配置错误，添加跳转链接
+        if (errorMessage.includes('VLM配置') || errorMessage.includes('多模态') || errorMessage.includes('对象存储')) {
+            const messageContent = h('div', { style: 'display: flex; align-items: center; gap: 8px; flex-wrap: wrap;' }, [
+                h('span', { style: 'flex: 1; min-width: 0;' }, errorMessage),
+                h('a', {
+                    href: '#',
+                    onClick: (e: Event) => {
+                        e.preventDefault();
+                        // 打开知识库设置弹框，并导航到高级设置部分
+                        console.log('Opening KB editor for:', currentKbId, 'section: advanced');
+                        uiStore.openEditKB(currentKbId, 'advanced');
+                    },
+                    style: 'color: #07C05F; text-decoration: none; font-weight: 500; cursor: pointer; white-space: nowrap; flex-shrink: 0;',
+                    onMouseenter: (e: Event) => {
+                        (e.target as HTMLElement).style.textDecoration = 'underline';
+                    },
+                    onMouseleave: (e: Event) => {
+                        (e.target as HTMLElement).style.textDecoration = 'none';
+                    }
+                }, '去设置 →')
+            ]);
+            
+            MessagePlugin.error({
+                content: messageContent,
+                duration: 5000
+            });
+        } else {
+            MessagePlugin.error(errorMessage);
+        }
     } finally {
         uploadInput.value.value = "";
     }
diff --git a/frontend/src/stores/ui.ts b/frontend/src/stores/ui.ts
index f8c3ef23..6f9918a4 100644
--- a/frontend/src/stores/ui.ts
+++ b/frontend/src/stores/ui.ts
@@ -6,6 +6,7 @@ export const useUIStore = defineStore('ui', {
     showKBEditorModal: false,
     kbEditorMode: 'create' as 'create' | 'edit',
     currentKBId: null as string | null,
+    kbEditorInitialSection: null as string | null,
     settingsInitialSection: null as string | null,
     settingsInitialSubSection: null as string | null
   }),
@@ -27,21 +28,28 @@ export const useUIStore = defineStore('ui', {
       this.showSettingsModal = !this.showSettingsModal
     },
 
-    openKBSettings(kbId: string) {
+    openKBSettings(kbId: string, initialSection?: string) {
       this.currentKBId = kbId
       this.kbEditorMode = 'edit'
+      this.kbEditorInitialSection = initialSection || null
       this.showKBEditorModal = true
     },
 
+    openEditKB(kbId: string, initialSection?: string) {
+      this.openKBSettings(kbId, initialSection)
+    },
+
     openCreateKB() {
       this.currentKBId = null
       this.kbEditorMode = 'create'
+      this.kbEditorInitialSection = null
       this.showKBEditorModal = true
     },
 
     closeKBEditor() {
       this.showKBEditorModal = false
       this.currentKBId = null
+      this.kbEditorInitialSection = null
     }
   }
 })
diff --git a/frontend/src/views/initialization/InitializationContent.vue b/frontend/src/views/initialization/InitializationContent.vue
index 4c51ff4a..2e919616 100644
--- a/frontend/src/views/initialization/InitializationContent.vue
+++ b/frontend/src/views/initialization/InitializationContent.vue
@@ -378,7 +378,7 @@
             </div>
 
             <!-- 多模态配置区域 -->
-            <div class="config-section">
+            <div id="multimodal-config-section" class="config-section">
                 <h3><t-icon name="image" class="section-icon" />多模态配置</h3>
                 <div class="form-row">
                     <t-form-item name="multimodal.enabled">
diff --git a/frontend/src/views/knowledge/KnowledgeBase.vue b/frontend/src/views/knowledge/KnowledgeBase.vue
index e6d0dfc5..aa88a10f 100644
--- a/frontend/src/views/knowledge/KnowledgeBase.vue
+++ b/frontend/src/views/knowledge/KnowledgeBase.vue
@@ -7,8 +7,11 @@ import { useRoute, useRouter } from 'vue-router';
 import EmptyKnowledge from '@/components/empty-knowledge.vue';
 import { getSessionsList, createSessions, generateSessionsTitle } from "@/api/chat/index";
 import { useMenuStore } from '@/stores/menu';
+import { useUIStore } from '@/stores/ui';
 import { MessagePlugin } from 'tdesign-vue-next';
+import KnowledgeBaseEditorModal from './KnowledgeBaseEditorModal.vue';
 const usemenuStore = useMenuStore();
+const uiStore = useUIStore();
 const router = useRouter();
 import {
   batchQueryKnowledge,
@@ -175,6 +178,14 @@ const sendMsg = (value: string) => {
   createNewSession(value);
 };
 
+// 处理知识库编辑成功后的回调
+const handleKBEditorSuccess = (kbIdValue: string) => {
+  // 如果编辑的是当前知识库，刷新文件列表
+  if (kbIdValue === kbId.value) {
+    loadKnowledgeFiles(kbIdValue);
+  }
+};
+
 const getTitle = (session_id: string, value: string) => {
   const now = new Date().toISOString();
   let obj = { 
@@ -265,6 +276,15 @@ async function createNewSession(value: string): Promise<void> {
     <DocContent :visible="isCardDetails" :details="details" @closeDoc="closeDoc" @getDoc="getDoc"></DocContent>
   </div>
   <EmptyKnowledge v-show="!cardList.length"></EmptyKnowledge>
+
+  <!-- 知识库编辑器（创建/编辑统一组件） -->
+  <KnowledgeBaseEditorModal 
+    :visible="uiStore.showKBEditorModal"
+    :mode="uiStore.kbEditorMode"
+    :kb-id="uiStore.currentKBId || undefined"
+    @update:visible="(val) => val ? null : uiStore.closeKBEditor()"
+    @success="handleKBEditorSuccess"
+  />
 </template>
 <style>
 .card-more {
diff --git a/frontend/src/views/knowledge/KnowledgeBaseEditorModal.vue b/frontend/src/views/knowledge/KnowledgeBaseEditorModal.vue
index 8ff2bdc4..de9aa3ba 100644
--- a/frontend/src/views/knowledge/KnowledgeBaseEditorModal.vue
+++ b/frontend/src/views/knowledge/KnowledgeBaseEditorModal.vue
@@ -119,10 +119,13 @@ import { MessagePlugin } from 'tdesign-vue-next'
 import { createKnowledgeBase, getKnowledgeBaseById, listKnowledgeFiles, updateKnowledgeBase } from '@/api/knowledge-base'
 import { updateKBConfig, type KBModelConfigRequest } from '@/api/initialization'
 import { listModels } from '@/api/model'
+import { useUIStore } from '@/stores/ui'
 import KBModelConfig from './settings/KBModelConfig.vue'
 import KBChunkingSettings from './settings/KBChunkingSettings.vue'
 import KBAdvancedSettings from './settings/KBAdvancedSettings.vue'
 
+const uiStore = useUIStore()
+
 // Props
 const props = defineProps<{
   visible: boolean
@@ -506,6 +509,11 @@ watch(() => props.visible, async (newVal) => {
     // 打开弹窗时，先重置状态
     resetState()
     
+    // 检查是否有初始 section，如果有则跳转
+    if (uiStore.kbEditorInitialSection) {
+      currentSection.value = uiStore.kbEditorInitialSection
+    }
+    
     // 加载模型列表
     await loadAllModels()
     
@@ -521,6 +529,7 @@ watch(() => props.visible, async (newVal) => {
     // 关闭弹窗时，延迟重置状态（等待动画结束）
     setTimeout(() => {
       resetState()
+      currentSection.value = 'basic' // 重置为默认 section
     }, 300)
   }
 })
diff --git a/frontend/src/views/settings/AgentSettings.vue b/frontend/src/views/settings/AgentSettings.vue
index 59826838..dc3d34e1 100644
--- a/frontend/src/views/settings/AgentSettings.vue
+++ b/frontend/src/views/settings/AgentSettings.vue
@@ -34,7 +34,7 @@
           </p>
         </div>
       </div>
-    </div>
+      </div>
 
     <div class="settings-group">
 
@@ -298,7 +298,7 @@ onMounted(async () => {
     // 再等待一帧，确保所有事件监听器都已设置好
     requestAnimationFrame(() => {
       // 初始化完成，现在可以允许保存操作
-      isInitializing.value = false
+    isInitializing.value = false
     })
   } catch (error) {
     console.error('加载Agent配置失败:', error)
@@ -362,8 +362,8 @@ const handleMaxIterationsChangeDebounced = (value: number) => {
   // 清除之前的定时器
   if (maxIterationsDebounceTimer) {
     clearTimeout(maxIterationsDebounceTimer)
-  }
-  
+}
+
   // 设置新的定时器，300ms 后保存（减少延迟，提升响应速度）
   maxIterationsDebounceTimer = setTimeout(async () => {
     // 再次检查值是否变化（可能在等待期间值又变了）
@@ -371,28 +371,28 @@ const handleMaxIterationsChangeDebounced = (value: number) => {
       maxIterationsDebounceTimer = null
       return
     }
-    
-    try {
-      const config: AgentConfig = {
+  
+  try {
+    const config: AgentConfig = {
         enabled: isAgentReady.value, // 自动根据配置状态设置
         max_iterations: numValue, // 确保是数字类型
-        reflection_enabled: false,
-        allowed_tools: localAllowedTools.value,
-        temperature: localTemperature.value,
-        thinking_model_id: localThinkingModelId.value,
-        rerank_model_id: localRerankModelId.value
-      }
-      
-      await updateAgentConfig(config)
+      reflection_enabled: false,
+      allowed_tools: localAllowedTools.value,
+      temperature: localTemperature.value,
+      thinking_model_id: localThinkingModelId.value,
+      rerank_model_id: localRerankModelId.value
+    }
+    
+    await updateAgentConfig(config)
       settingsStore.updateAgentConfig({ maxIterations: numValue })
       lastSavedValue = numValue // 记录已保存的值
-      MessagePlugin.success('最大迭代次数已保存')
-    } catch (error) {
-      console.error('保存失败:', error)
-      MessagePlugin.error(getErrorMessage(error))
+    MessagePlugin.success('最大迭代次数已保存')
+  } catch (error) {
+    console.error('保存失败:', error)
+    MessagePlugin.error(getErrorMessage(error))
     } finally {
       maxIterationsDebounceTimer = null
-    }
+  }
   }, 300)
 }
 
diff --git a/internal/application/service/agent_service.go b/internal/application/service/agent_service.go
index 7c4d0732..55b2f947 100644
--- a/internal/application/service/agent_service.go
+++ b/internal/application/service/agent_service.go
@@ -16,6 +16,8 @@ import (
 	"gorm.io/gorm"
 )
 
+const MAX_ITERATIONS = 30 // Max iterations for agent execution
+
 // agentService implements agent-related business logic
 type agentService struct {
 	cfg                  *config.Config
@@ -194,8 +196,8 @@ func (s *agentService) ValidateConfig(config *types.AgentConfig) error {
 		config.MaxIterations = 5 // Default
 	}
 
-	if config.MaxIterations > 20 {
-		return fmt.Errorf("max iterations too high: %d (max 20)", config.MaxIterations)
+	if config.MaxIterations > MAX_ITERATIONS {
+		return fmt.Errorf("max iterations too high: %d (max %d)", config.MaxIterations, MAX_ITERATIONS)
 	}
 
 	if config.ThinkingModelID == "" {