Agent window has no close button

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

agent window has no close button on Windows 11 arm.

Steps to Reproduce

Open agents window

Expected Behavior

The window be a normal one with 3 keys at upper right title bar.

Operating System

Windows 10/11

Version Information

Version: 3.9.16 (user setup)
VS Code Extension API: 1.105.1
Commit: 042b3c1a4c53f2c3808067f519fbfc67b72cad80
Date: 2026-06-27T06:41:01.941Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.256
OS: Windows_NT arm64 10.0.26200

Does this stop you from using Cursor

No - Cursor works, but with this issue

Hey, thanks for the report. A couple of things to help us narrow this down:

For now, you can close the window with Alt+F4. It’s still closable, it just has no visible buttons.

For troubleshooting, please check this setting: open Settings with Ctrl+Shift+,, search for window.controlsStyle. If it’s set to custom or hidden, change it to native and fully restart Cursor. On Windows, the Agents Window uses native window controls, and when this isn’t set to native, the buttons can disappear.

Two quick questions so we can find the cause:

  1. In the normal editor window, not the Agents Window, do the three buttons in the top-right show up normally?
  2. What is window.controlsStyle set to right now?

Let me know what you find. If the buttons don’t come back after switching to native, we’ll dig deeper.