diff --git a/src/tools/pages.ts b/src/tools/pages.ts
index 895632bd3..5e5d3cef7 100644
--- a/src/tools/pages.ts
+++ b/src/tools/pages.ts
@@ -16,7 +16,7 @@ import {
   timeoutSchema,
 } from './ToolDefinition.js';
 
-export const listPages = definePageTool(args => {
+export const listPages = defineTool(args => {
   return {
     name: 'list_pages',
     description: `Get a list of pages ${args?.categoryExtensions ? 'including extension service workers' : ''} open in the browser.`,
diff --git a/tests/tools/pages.test.ts b/tests/tools/pages.test.ts
index d278cd0a3..3fb5892b6 100644
--- a/tests/tools/pages.test.ts
+++ b/tests/tools/pages.test.ts
@@ -45,11 +45,21 @@ describe('pages', () => {
   describe('list_pages', () => {
     it('list pages', async () => {
       await withMcpContext(async (response, context) => {
-        await listPages().handler(
-          {params: {}, page: context.getSelectedMcpPage()},
-          response,
-          context,
-        );
+        await listPages().handler({params: {}}, response, context);
+        assert.ok(response.includePages);
+      });
+    });
+    it('list pages after selected page is closed', async () => {
+      await withMcpContext(async (response, context) => {
+        // Create a second page and select it.
+        const page2 = await context.newPage();
+        assert.strictEqual(context.getSelectedMcpPage(), page2);
+
+        // Close the selected page via puppeteer (simulating external close).
+        await page2.pptrPage.close();
+
+        // list_pages should still work even though the selected page is gone.
+        await listPages().handler({params: {}}, response, context);
         assert.ok(response.includePages);
       });
     });
@@ -70,11 +80,7 @@ describe('pages', () => {
           const listPageDef = listPages({
             categoryExtensions: true,
           } as ParsedArguments);
-          await listPageDef.handler(
-            {params: {}, page: context.getSelectedMcpPage()},
-            response,
-            context,
-          );
+          await listPageDef.handler({params: {}}, response, context);
 
           const result = await response.handle(listPageDef.name, context);
           const textContent = result.content.find(c => c.type === 'text') as {
@@ -116,11 +122,7 @@ describe('pages', () => {
             const listPageDef = listPages({
               categoryExtensions,
             } as ParsedArguments);
-            await listPageDef.handler(
-              {params: {}, page: context.getSelectedMcpPage()},
-              response,
-              context,
-            );
+            await listPageDef.handler({params: {}}, response, context);
 
             const result = await response.handle(listPageDef.name, context);
             const textContent = result.content.find(c => c.type === 'text') as {
@@ -177,11 +179,7 @@ describe('pages', () => {
           const listPageDef = listPages({
             categoryExtensions: true,
           } as ParsedArguments);
-          await listPageDef.handler(
-            {params: {}, page: context.getSelectedMcpPage()},
-            response,
-            context,
-          );
+          await listPageDef.handler({params: {}}, response, context);
 
           const result = await response.handle(listPageDef.name, context);
           const textContent = result.content.find(c => c.type === 'text') as {