fix(MCPService): clear cache on server close and refactor tool fetching logic

src/main/services/MCPService.ts

@@ -122,6 +122,8 @@ class McpService {
       await client.close()
       Logger.info(`[MCP] Closed server: ${serverKey}`)
       this.clients.delete(serverKey)
+      CacheService.remove(`mcp:list_tool:${serverKey}`)
+      Logger.info(`[MCP] Cleared cache for server: ${serverKey}`)
     } else {
       Logger.warn(`[MCP] No client found for server: ${serverKey}`)
     }
@@ -150,7 +152,8 @@ class McpService {
 
   async listTools(_: Electron.IpcMainInvokeEvent, server: MCPServer) {
     const client = await this.initClient(server)
-    const cacheKey = `mcp:list_tool:${server.id}`
+    const serverKey = this.getServerKey(server)
+    const cacheKey = `mcp:list_tool:${serverKey}`
     if (CacheService.has(cacheKey)) {
       Logger.info(`[MCP] Tools from ${server.name} loaded from cache`)
       const cachedTools = CacheService.get<MCPTool[]>(cacheKey)

src/renderer/src/pages/settings/MCPSettings/McpSettings.tsx

@@ -82,6 +82,10 @@ const McpSettings: React.FC<Props> = ({ server }) => {
 
   // Load tools on initial mount if server is active
   useEffect(() => {
+    fetchTools()
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+
   const fetchTools = async () => {
     if (server.isActive) {
       try {
@@ -100,9 +104,6 @@ const McpSettings: React.FC<Props> = ({ server }) => {
     }
   }
 
-    fetchTools()
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [])
   // Save the form data
   const onSave = async () => {
     setLoading(true)
@@ -141,6 +142,7 @@ const McpSettings: React.FC<Props> = ({ server }) => {
         await window.api.mcp.restartServer(mcpServer)
         updateMCPServer({ ...mcpServer, isActive: true })
         window.message.success({ content: t('settings.mcp.updateSuccess'), key: 'mcp-update-success' })
+        await fetchTools()
         setLoading(false)
         setIsFormChanged(false)
       } catch (error: any) {