refactor: update build scripts and improve inspector middleware

- Modify build script to separate mcp-use and other builds for better clarity
- Adjust inspector middleware to enhance routing and serve the main HTML file for the root path
- Ensure proper handling of trailing slashes in inspector routes

Author: tonxxd

package.json

@@ -7,7 +7,9 @@
     "packages/*"
   ],
   "scripts": {
-    "build": "pnpm run -r build",
+    "build": "pnpm run build:mcp-use && pnpm run build:other",
+    "build:mcp-use": "pnpm --filter mcp-use build",
+    "build:other": "pnpm --filter '!mcp-use' --filter '!test_app' build",
     "test": "pnpm run -r test",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",

packages/cli/src/index.ts

@@ -171,7 +171,7 @@ program
       processes.push(serverProc);
 
       // Auto-open inspector if enabled
-      if (options.open) {
+      if (options.open !== false) {
         const startTime = Date.now();
         const ready = await waitForServer(port);
         if (ready) {

packages/inspector/src/server/middleware.ts

@@ -125,11 +125,6 @@ export function mountInspector(app: Express, path: string = '/inspector', mcpSer
     }
   })
 
-  // Redirect /inspector/ to /inspector (remove trailing slash)
-  app.get(`${basePath}/`, (_req: Request, res: Response) => {
-    res.redirect(301, basePath)
-  })
-
   // Handle OAuth callback redirects - redirect /oauth/callback to /inspector/oauth/callback
   // This helps when OAuth providers are configured with the wrong redirect URL
   if (basePath !== '') {
@@ -142,8 +137,26 @@ export function mountInspector(app: Express, path: string = '/inspector', mcpSer
     })
   }
 
-  // Serve the main HTML file for all inspector routes
-  app.get(`${basePath}*`, (_req: Request, res: Response) => {
+  // Serve the main HTML file for the root inspector path (exact match)
+  app.get(basePath, (_req: Request, res: Response) => {
+    const indexPath = join(clientDistPath, 'index.html')
+
+    if (!existsSync(indexPath)) {
+      res.status(500).send('Inspector UI not found. Please build the inspector package.')
+      return
+    }
+
+    // Serve the HTML file (Vite built with base: '/inspector')
+    res.sendFile(indexPath)
+  })
+
+  // Redirect /inspector/ to /inspector (remove trailing slash)
+  app.get(`${basePath}/`, (_req: Request, res: Response) => {
+    res.redirect(301, basePath)
+  })
+
+  // Serve the main HTML file for all other inspector routes (SPA routing)
+  app.get(`${basePath}/*`, (_req: Request, res: Response) => {
     const indexPath = join(clientDistPath, 'index.html')
 
     if (!existsSync(indexPath)) {