diff --git a/.changeset/refresh-batch-import.md b/.changeset/refresh-batch-import.md
new file mode 100644
index 00000000..992ad2c1
--- /dev/null
+++ b/.changeset/refresh-batch-import.md
@@ -0,0 +1,9 @@
+---
+"@promptx/desktop": patch
+---
+
+feat: add refresh button and batch import functionality
+
+- Add refresh button to reload resource list
+- Add batch import feature for importing multiple resources at once
+- Improve resource management user experience
diff --git a/.changeset/silent-sounds-fix.md b/.changeset/silent-sounds-fix.md
new file mode 100644
index 00000000..277743e5
--- /dev/null
+++ b/.changeset/silent-sounds-fix.md
@@ -0,0 +1,11 @@
+---
+"@promptx/desktop": patch
+---
+
+fix: disable notification sounds on macOS startup (#493)
+
+- Set notification adapter to silent by default to prevent system sounds on app launch
+- Add autoplayPolicy to BrowserWindow webPreferences to prevent media autoplay
+- Fix issue where macOS played notification sound every time the app started
+
+This change improves the user experience by making notifications silent by default, following desktop application best practices. Users can still see notifications, but without the disruptive sound effects.
diff --git a/.changeset/single-instance-ux.md b/.changeset/single-instance-ux.md
new file mode 100644
index 00000000..5cf7ca99
--- /dev/null
+++ b/.changeset/single-instance-ux.md
@@ -0,0 +1,13 @@
+---
+'@promptx/desktop': patch
+'@promptx/logger': patch
+---
+
+feat: single instance lock and UX improvements
+
+- Add single instance lock to prevent multiple app instances
+- Auto open main window on startup for better UX
+- Focus existing window when user clicks shortcut while app is running
+- Add resource type validation framework for import
+- Fix logger file lock issue with graceful fallback to console
+- Fix logs list refresh after clearing all logs
diff --git a/apps/desktop/src/main/bootstrap.ts b/apps/desktop/src/main/bootstrap.ts
index 426b375a..c3186cba 100644
--- a/apps/desktop/src/main/bootstrap.ts
+++ b/apps/desktop/src/main/bootstrap.ts
@@ -57,5 +57,44 @@ if (typeof globalThis.File === 'undefined') {
   }
 }
 
-// Now import the actual app
-import('./index.js')
\ No newline at end of file
+// ==================== Single Instance Lock ====================
+// Check BEFORE importing main app to avoid logger file lock conflicts
+import { app, BrowserWindow } from 'electron'
+
+// Global callback for opening main window (set by main app after initialization)
+;(global as any).__promptxOpenMainWindow = null
+
+const gotTheLock = app.requestSingleInstanceLock()
+
+if (!gotTheLock) {
+  // Another instance is already running, quit immediately
+  console.log('Another instance is already running. Quitting...')
+  app.quit()
+} else {
+  // Set up second-instance handler IMMEDIATELY after getting lock
+  // This ensures we catch second instance attempts even during app initialization
+  app.on('second-instance', () => {
+    console.log('Second instance detected, focusing existing window...')
+
+    // Focus existing window if any
+    const windows = BrowserWindow.getAllWindows()
+    if (windows.length > 0) {
+      const mainWindow = windows[0]
+      if (mainWindow.isMinimized()) {
+        mainWindow.restore()
+      }
+      mainWindow.show()
+      mainWindow.focus()
+    } else {
+      // No window exists, use callback to open main window
+      const openMainWindow = (global as any).__promptxOpenMainWindow
+      if (typeof openMainWindow === 'function') {
+        openMainWindow()
+      }
+    }
+  })
+
+  // Now import the actual app (only if we got the lock)
+  import('./index.js')
+}
+// ==============================================================
\ No newline at end of file
diff --git a/apps/desktop/src/main/i18n/en.json b/apps/desktop/src/main/i18n/en.json
index faa3af1b..ccba6515 100644
--- a/apps/desktop/src/main/i18n/en.json
+++ b/apps/desktop/src/main/i18n/en.json
@@ -1,4 +1,7 @@
 {
+  "app": {
+    "alreadyRunning": "PromptX is already running in the system tray"
+  },
   "tray": {
     "tooltip": "PromptX",
     "status": {
@@ -75,7 +78,16 @@
     "importFailed": "Failed to import resource",
     "invalidResourceStructure": "Invalid resource structure: cannot find .role.md or .tool.js file",
     "resourceExists": "Resource Already Exists",
-    "resourceExistsMessage": "Resource \"{{id}}\" already exists. Do you want to overwrite it?"
+    "resourceExistsMessage": "Resource \"{{id}}\" already exists. Do you want to overwrite it?",
+    "import": {
+      "errors": {
+        "invalidRoleType": "Invalid role resource: no .md file found in the archive",
+        "invalidToolType": "Invalid tool resource: no .js file found in the archive",
+        "mismatchRoleExpectedTool": "Type mismatch: selected 'role' but the archive contains a tool resource",
+        "mismatchToolExpectedRole": "Type mismatch: selected 'tool' but the archive contains a role resource",
+        "validationFailed": "Failed to validate resource type"
+      }
+    }
   },
   "errors": {
     "configLoadFailed": "Configuration file exists but failed to load",
diff --git a/apps/desktop/src/main/i18n/zh-CN.json b/apps/desktop/src/main/i18n/zh-CN.json
index 0d98598f..a6837de9 100644
--- a/apps/desktop/src/main/i18n/zh-CN.json
+++ b/apps/desktop/src/main/i18n/zh-CN.json
@@ -1,4 +1,7 @@
 {
+  "app": {
+    "alreadyRunning": "PromptX 已在系统托盘中运行"
+  },
   "tray": {
     "tooltip": "PromptX",
     "status": {
@@ -75,7 +78,16 @@
     "importFailed": "导入资源失败",
     "invalidResourceStructure": "无效的资源结构：找不到 .role.md 或 .tool.js 文件",
     "resourceExists": "资源已存在",
-    "resourceExistsMessage": "资源 \"{{id}}\" 已存在。是否覆盖？"
+    "resourceExistsMessage": "资源 \"{{id}}\" 已存在。是否覆盖？",
+    "import": {
+      "errors": {
+        "invalidRoleType": "无效的角色资源：压缩包中未找到 .md 文件",
+        "invalidToolType": "无效的工具资源：压缩包中未找到 .js 文件",
+        "mismatchRoleExpectedTool": "类型不匹配：选择了角色资源但压缩包中是工具资源",
+        "mismatchToolExpectedRole": "类型不匹配：选择了工具资源但压缩包中是角色资源",
+        "validationFailed": "验证资源类型失败"
+      }
+    }
   },
   "errors": {
     "configLoadFailed": "配置文件存在但加载失败",
diff --git a/apps/desktop/src/main/index.ts b/apps/desktop/src/main/index.ts
index d5df2256..0ac12d7d 100644
--- a/apps/desktop/src/main/index.ts
+++ b/apps/desktop/src/main/index.ts
@@ -1,7 +1,7 @@
 // Import polyfills first, before any other modules
 import '~/main/polyfills'
 
-import { BrowserWindow, app, dialog, ipcMain } from 'electron'
+import { app, BrowserWindow, dialog, ipcMain } from 'electron'
 import { TrayPresenter } from '~/main/tray/TrayPresenter'
 import { ResourceManager } from '~/main/ResourceManager'
 import { PromptXServerAdapter } from '~/main/infrastructure/adapters/PromptXServerAdapter'
@@ -19,7 +19,6 @@ import * as fs from 'node:fs'
 import { mainI18n, t } from '~/main/i18n'
 import { ServerConfig } from '~/main/domain/entities/ServerConfig'
 
-
 class PromptXDesktopApp {
   private trayPresenter: TrayPresenter | null = null
   private resourceManager: ResourceManager | null = null
@@ -102,6 +101,15 @@ class PromptXDesktopApp {
       logger.error('Failed to auto-start server:', err)
     }
 
+    // Register global callback for second-instance to open main window
+    // This is used by bootstrap.ts when user clicks shortcut while app is running
+    ;(global as any).__promptxOpenMainWindow = () => {
+      this.trayPresenter?.openMainWindow()
+    }
+
+    // Auto open main window on startup for better UX
+    logger.info('Opening main window...')
+    this.trayPresenter?.openMainWindow()
 
     // Auto check and download updates on startup (non-blocking)
     logger.info('Scheduling automatic update check and download...')
@@ -273,17 +281,23 @@ class PromptXDesktopApp {
           .filter(file => file.startsWith('promptx-') && file.endsWith('.log'))
           .map(file => {
             const filePath = path.join(logsDir, file)
-            const stats = fs.statSync(filePath)
-            const isError = file.includes('error')
-
-            return {
-              name: file,
-              path: filePath,
-              size: stats.size,
-              modified: stats.mtime,
-              type: isError ? 'error' : 'normal'
+            try {
+              const stats = fs.statSync(filePath)
+              const isError = file.includes('error')
+
+              return {
+                name: file,
+                path: filePath,
+                size: stats.size,
+                modified: stats.mtime,
+                type: isError ? 'error' : 'normal'
+              }
+            } catch {
+              // 文件可能在读取期间被删除或锁定，跳过
+              return null
             }
           })
+          .filter((log): log is NonNullable<typeof log> => log !== null)
           .sort((a, b) => b.modified.getTime() - a.modified.getTime())
 
         return { success: true, logs }
@@ -337,16 +351,24 @@ class PromptXDesktopApp {
 
         const files = fs.readdirSync(logsDir)
         let deleted = 0
+        let skipped = 0
 
         for (const file of files) {
           if (file.startsWith('promptx-') && file.endsWith('.log')) {
             const filePath = path.join(logsDir, file)
-            fs.unlinkSync(filePath)
-            deleted++
+            try {
+              fs.unlinkSync(filePath)
+              deleted++
+            } catch {
+              // 文件可能被锁定（如当前正在写入的日志），跳过
+              skipped++
+            }
           }
         }
 
-        logger.info(`Cleared ${deleted} log files`)
+        if (deleted > 0 || skipped === 0) {
+          logger.info(`Cleared ${deleted} log files${skipped > 0 ? `, ${skipped} skipped (in use)` : ''}`)
+        }
         return { success: true, deleted }
       } catch (error) {
         logger.error('Failed to clear logs:', String(error))
@@ -416,6 +438,9 @@ class PromptXDesktopApp {
   }
 
   private setupAppEvents(): void {
+    // NOTE: second-instance handler is set up in bootstrap.ts
+    // to ensure it's registered before app initialization completes
+
     // Prevent app from quitting when all windows are closed
     app.on('window-all-closed', () => {
       // Keep app running in system tray on all platforms
@@ -525,6 +550,7 @@ process.stderr.on('error', (error: any) => {
 })
 
 // Application entry point
+// Single instance lock is already checked in bootstrap.ts
 const application = new PromptXDesktopApp()
 
 application.initialize().catch((error) => {
diff --git a/apps/desktop/src/main/tray/TrayPresenter.ts b/apps/desktop/src/main/tray/TrayPresenter.ts
index a51f5a8b..29ad49da 100644
--- a/apps/desktop/src/main/tray/TrayPresenter.ts
+++ b/apps/desktop/src/main/tray/TrayPresenter.ts
@@ -237,7 +237,7 @@ export class TrayPresenter {
     menuItems.push({
       id: 'main-window',
       label: t('tray.menu.openMainWindow'),
-      click: () => this.handleOpenMainWindow()
+      click: () => this.openMainWindow()
     })
 
     menuItems.push({ type: 'separator' })
@@ -377,7 +377,7 @@ export class TrayPresenter {
     }
   }
 
-  private handleOpenMainWindow(): void {
+  public openMainWindow(): void {
     if (this.mainWindow && !this.mainWindow.isDestroyed()) {
       this.mainWindow.focus()
       return
diff --git a/apps/desktop/src/main/windows/ResourceListWindow.ts b/apps/desktop/src/main/windows/ResourceListWindow.ts
index 4902f06c..ee4d9564 100644
--- a/apps/desktop/src/main/windows/ResourceListWindow.ts
+++ b/apps/desktop/src/main/windows/ResourceListWindow.ts
@@ -15,6 +15,71 @@ export class ResourceListWindow {
     this.setupIpcHandlers()
   }
 
+  /**
+   * 验证资源类型是否与压缩包内容匹配
+   * @param resourceDir 解压后的资源目录
+   * @param expectedType 用户选择的资源类型 ('role' | 'tool')
+   * @returns { valid: boolean, message?: string }
+   */
+  private async validateResourceType(
+    resourceDir: string,
+    expectedType: 'role' | 'tool'
+  ): Promise<{ valid: boolean; message?: string }> {
+    const fs = require('fs-extra')
+
+    try {
+      const files = await fs.readdir(resourceDir)
+
+      // 检查是否包含角色文件 (.md)
+      const hasMdFile = files.some((f: string) => f.endsWith('.md'))
+      // 检查是否包含工具文件 (.js)
+      const hasJsFile = files.some((f: string) => f.endsWith('.js'))
+
+      // TODO: 用户自定义的识别逻辑放在这里
+      // 可以根据实际需求扩展验证规则，例如：
+      // - 检查文件内容格式
+      // - 检查特定的元数据字段
+      // - 检查文件命名规范等
+
+      if (expectedType === 'role') {
+        if (!hasMdFile) {
+          return {
+            valid: false,
+            message: t('resources.import.errors.invalidRoleType')
+          }
+        }
+        // 如果同时有 .js 文件但用户选择了 role，可能是选错了类型
+        if (hasJsFile && !hasMdFile) {
+          return {
+            valid: false,
+            message: t('resources.import.errors.mismatchRoleExpectedTool')
+          }
+        }
+      } else if (expectedType === 'tool') {
+        if (!hasJsFile) {
+          return {
+            valid: false,
+            message: t('resources.import.errors.invalidToolType')
+          }
+        }
+        // 如果同时有 .md 文件但用户选择了 tool，可能是选错了类型
+        if (hasMdFile && !hasJsFile) {
+          return {
+            valid: false,
+            message: t('resources.import.errors.mismatchToolExpectedRole')
+          }
+        }
+      }
+
+      return { valid: true }
+    } catch (error: any) {
+      return {
+        valid: false,
+        message: t('resources.import.errors.validationFailed')
+      }
+    }
+  }
+
   private setupIpcHandlers(): void {
     // 防止重复注册
     if (ResourceListWindow.handlersRegistered) {
@@ -472,6 +537,15 @@ export class ResourceListWindow {
             return { success: false, message: t('resources.invalidResourceStructure') }
           }
 
+          // ==================== 资源类型验证 ====================
+          // 验证压缩包内的文件类型是否与用户选择的资源类型匹配
+          const validationResult = await this.validateResourceType(resourceDir, type)
+          if (!validationResult.valid) {
+            await fs.remove(tempDir)
+            return { success: false, message: validationResult.message }
+          }
+          // ======================================================
+
           // 使用自定义ID或原ID
           const finalId = customId || resourceId
 
diff --git a/apps/desktop/src/view/pages/resources-window/components/ResourceImporter.tsx b/apps/desktop/src/view/pages/resources-window/components/ResourceImporter.tsx
index 24d72e20..4f149a37 100644
--- a/apps/desktop/src/view/pages/resources-window/components/ResourceImporter.tsx
+++ b/apps/desktop/src/view/pages/resources-window/components/ResourceImporter.tsx
@@ -78,11 +78,11 @@ export function ResourceImporter({ isOpen, onClose, onImportSuccess }: ResourceI
             successCount++
           } else {
             failCount++
-            console.error(`Failed to import ${filePath}:`, result?.message)
+            toast.error(t(String(result?.message || 'resources.import.messages.importFailed')))
           }
         } catch (err) {
           failCount++
-          console.error(`Error importing ${filePath}:`, err)
+          toast.error(t(String(err || 'resources.import.messages.importFailed')))
         }
       }
 
@@ -95,12 +95,10 @@ export function ResourceImporter({ isOpen, onClose, onImportSuccess }: ResourceI
         resetForm()
         onClose()
         onImportSuccess?.()
-      } else {
-        toast.error(t('resources.import.messages.importFailed'))
-      }
+      } 
     } catch (error) {
       console.error("Import process failed:", error)
-      toast.error(t('resources.import.messages.importFailed'))
+      toast.error(t(String(error)))
     } finally {
       setIsImporting(false)
     }
diff --git a/packages/logger/src/index.ts b/packages/logger/src/index.ts
index a638c2f6..da91d093 100644
--- a/packages/logger/src/index.ts
+++ b/packages/logger/src/index.ts
@@ -98,51 +98,56 @@ export function createLogger(config: LoggerConfig = {}): pino.Logger {
       const logDir = fileConfig.dirname || path.join(os.homedir(), '.promptx', 'logs')
       const today = new Date().toISOString().split('T')[0]
       const logPath = path.join(logDir, `promptx-${today}.log`)
-      
-      // Use pino.destination with sync mode for Electron
-      const dest = pino.destination({
-        dest: logPath,
-        sync: true  // Use sync to avoid worker thread issues in Electron
-      })
-      
-      return pino({
-        level: finalConfig.level || 'info',
-        base: { pid: process.pid },
-        mixin: () => getCallerInfo(),
-        // Simple formatting without pino-pretty to avoid worker threads
-        formatters: {
-          level: (label) => {
-            return { level: label }
-          },
-          log: (obj) => {
-            const { package: pkg, file, line, ...rest } = obj
-            return {
-              ...rest,
-              location: pkg && file ? `${pkg} [${file}:${line}]` : undefined
+
+      try {
+        // Use pino.destination with sync mode for Electron
+        const dest = pino.destination({
+          dest: logPath,
+          sync: true  // Use sync to avoid worker thread issues in Electron
+        })
+
+        return pino({
+          level: finalConfig.level || 'info',
+          base: { pid: process.pid },
+          mixin: () => getCallerInfo(),
+          // Simple formatting without pino-pretty to avoid worker threads
+          formatters: {
+            level: (label) => {
+              return { level: label }
+            },
+            log: (obj) => {
+              const { package: pkg, file, line, ...rest } = obj
+              return {
+                ...rest,
+                location: pkg && file ? `${pkg} [${file}:${line}]` : undefined
+              }
             }
           }
-        }
-      }, dest)
-    } else {
-      // Console only mode for Electron without pino-pretty
-      return pino({
-        level: finalConfig.level || 'info',
-        base: { pid: process.pid },
-        mixin: () => getCallerInfo(),
-        formatters: {
-          level: (label) => {
-            return { level: label }
-          },
-          log: (obj) => {
-            const { package: pkg, file, line, ...rest } = obj
-            return {
-              ...rest,
-              location: pkg && file ? `${pkg} [${file}:${line}]` : undefined
-            }
+        }, dest)
+      } catch (err) {
+        // File may be locked by another instance, fall back to console only
+        console.warn(`[logger] Cannot open log file (may be locked by another instance): ${logPath}`)
+      }
+    }
+
+    // Console only mode for Electron without pino-pretty (or file open failed)
+    return pino({
+      level: finalConfig.level || 'info',
+      base: { pid: process.pid },
+      mixin: () => getCallerInfo(),
+      formatters: {
+        level: (label) => {
+          return { level: label }
+        },
+        log: (obj) => {
+          const { package: pkg, file, line, ...rest } = obj
+          return {
+            ...rest,
+            location: pkg && file ? `${pkg} [${file}:${line}]` : undefined
           }
         }
-      })
-    }
+      }
+    })
   } else {
     // Use transports for non-Electron environments (better for servers)
     const targets: any[] = []