Cursor Takes a Long Time to Close Due to “Composer Session End Hooks” on Windows 11

Support Help
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Hello Cursor community,

I am using Cursor on Windows 11 with 16 GB of RAM. My development work mainly involves PHP, Electron, and Python projects.

Every time I close Cursor, a dialog appears with the following message:

Closing the window is taking a bit longer…
The following operations are still running:
Composer Session End Hooks

The dialog remains visible until the process finishes or I click “Close Anyway.”

Is this expected behavior, a known bug, or possibly caused by an extension, configuration, or running process? Are there any recommended steps to identify what is triggering the Composer Session End Hooks during shutdown?

Thank you for your help.

Steps to Reproduce

Every time I close Cursor

Screenshots / Screen Recordings

ask.jpg
ask.jpg547×240 7.2 KB

Operating System

Windows 10/11

Version Information

Every time I close Cursor

For AI issues: which model did you use?

all models

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, thanks for the detailed report and the screenshot. This isn’t a bug or a random extension. It’s how the Hooks feature works. You have a sessionEnd hook set up somewhere, and when you close Cursor it waits for that hook to finish. That’s why you see the message “Closing the window is taking a bit longer…”.

Where to look:

  • Cursor Settings > Hooks. There’s also a hook execution log there.
  • ~/.cursor/hooks.json for user hooks and .cursor/hooks.json in your project
  • Installed plugins that register hooks
  • Claude Code settings at ~/.claude/settings.json. Cursor should pick these up, but in practice it’s more reliable to check .cursor/hooks.json directly.

How to remove the delay:

  • Remove or disable the sessionEnd hook you don’t need
  • Or lower its timeout, or speed up the script itself
  • On Windows, it’s better to use Node or PowerShell instead of .sh. Shell scripts via Git Bash start slowly, which causes the delay every time you close Cursor.
  • Quick workaround: just click Close Anyway

Most likely the hook came from a plugin or from your Claude config. Start with Cursor Settings > Hooks. Usually you can see right away what’s being launched. Let me know what you find.

6

Thanks for the clarify. I have the same message appearing, turned out it was Vercel’s plugins

7

I prefer “just click Close Anyway” btw.

thanks for reply :folded_hands:

8

yeap, for me, it was also vercel session

9

Hi, same here, I get the popup. It’s “vercel-plugin config”.
But I don’t know how to remove the hook.
Someone can help me?

10

Hey. If the hook is coming from the Vercel plugin, you can remove it like this:

  1. Cursor Settings > Customize: find the Vercel plugin in the installed list and disable or uninstall it. This will remove the sessionEnd hook that blocks closing.
  2. If you want to keep the plugin but remove only this hook, go to Cursor Settings > Hooks. There’s an execution log there too. You can disable the specific hook or lower its timeout.
  3. Quick workaround if you don’t want to change anything: just click Close Anyway when you exit.

On Windows, .sh hooks start slowly via Git Bash, so you get a delay on every close. Let me know if the dialog still shows up after you disable the plugin.