Need Help - The agent execution provider did not respond in time

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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

The agent execution provider did not respond in time. This may indicate the extension host is not running or is unresponsive.

Request ID: 49f21fc5-7ab8-4cd1-8fce-2451a9c91f21
{“error”:“ERROR_EXTENSION_HOST_TIMEOUT”,“details”:{“title”:“Agent Execution Timed Out”,“detail”:“The agent execution provider did not respond in time. This may indicate the extension host is not running or is unresponsive.”,“isRetryable”:false,“shouldShowImmediateError”:true,“additionalInfo”:{},“buttons”:[{“label”:“Reload Window”,“reloadWindow”:{}}],“planChoices”:}}
Agent Execution Timed Out [deadline_exceeded]
ConnectError: [deadline_exceeded] Agent Execution Timed Out
at uLw (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:44320:28201)
at mKd.waitForProviderRegistration (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:44320:32965)
at async yvf._waitForPushRequestContextProviderRegistration (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47670:4084)
at async yvf.streamFromAgentBackend (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47670:7354)
at async yvf.getAgentStreamResponse (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47670:19276)
at async Vut.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:36386:16963)
at async Object.Fs [as onSubmit] (vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:46675:3887)
at async vscode-file://vscode-app/c:/Users/conno/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:45736:103088

Steps to Reproduce

Happens every time I try to send a prompt

Expected Behavior

It should execute the prompt properly.

Operating System

Windows 10/11

Version Information

Version: 3.6.21 (user setup)
VS Code Extension API: 1.105.1
Commit: e7a7e93f4d75f8272503ecf33cedbaae10114a10
Date: 2026-05-28T21:45:36.072Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
xterm.js: 6.1.0-beta.220
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

All models dont work

Does this stop you from using Cursor

Yes - Cursor is unusable

5

Hey, this is a known issue with extension host startup on Windows. Most often it happens because the cursor-socket extension is missing the out\ folder, and this fix is usually reliable.

Since you’re using the user setup, open PowerShell as Administrator and check what’s inside:

dir "$env:LOCALAPPDATA\Programs\cursor\resources\app\extensions\cursor-socket"

If you see a dist\ folder but no out\, copy it over. A copy tends to survive reboots better than a symlink:

cd "$env:LOCALAPPDATA\Programs\cursor\resources\app\extensions\cursor-socket"
Remove-Item "out" -Recurse -Force -ErrorAction SilentlyContinue
Copy-Item -Path "dist" -Destination "out" -Recurse

Then fully quit Cursor. In Task Manager, make sure there’s no Cursor.exe left, then start Cursor again.

If the folder looks different, or this didn’t help, try these in order:

  1. Clear cache: close Cursor, delete %APPDATA%\Cursor\CachedData, %APPDATA%\Cursor\Cache, %APPDATA%\Cursor\GPUCache, then start it again.
  2. Run cursor --disable-extensions. If it works like that, an extension is blocking the extension host.
  3. If you use antivirus or endpoint protection, add the Cursor folder to exclusions. That’s a common reason why out\ disappears.

Note: Cursor auto-updates might remove out\ again, so you may need to repeat the Copy-Item step. A permanent fix on our side is in progress, but I can’t share an ETA yet.

If none of this worked, send the output of the first command dir ... and we’ll dig in further.

6

Thanks for the reply.

No success following those instructions. Here’s my output

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

Install the latest PowerShell for new features and improvements! 


PS C:\WINDOWS\system32> dir “$env:LOCALAPPDATA\Programs\cursor\resources\app\extensions\cursor-socket”

Directory: C:\Users\conno\AppData\Local\Programs\cursor\resources\app\extensions\cursor-socket

Mode                 LastWriteTime         Length Name




d-----        30/05/2026     13:10                dist
-a----        28/05/2026     22:17            182 extension.webpack.config.js
-a----        28/05/2026     22:17            477 package.json

PS C:\WINDOWS\system32> cd “$env:LOCALAPPDATA\Programs\cursor\resources\app\extensions\cursor-socket”

Remove-Item “out” -Recurse -Force -ErrorAction SilentlyContinue
Copy-Item -Path “dist” -Destination “out” -Recurse
PS C:\Users\conno\AppData\Local\Programs\cursor\resources\app\extensions\cursor-socket> dir “$env:LOCALAPPDATA\Programs\cursor\resources\app\extensions\cursor-socket”

Directory: C:\Users\conno\AppData\Local\Programs\cursor\resources\app\extensions\cursor-socket

Mode                 LastWriteTime         Length Name




d-----        30/05/2026     13:10                dist
d-----        30/05/2026     14:57                out
-a----        28/05/2026     22:17            182 extension.webpack.config.js
-a----        28/05/2026     22:17            477 package.json

PS C:\Users\conno\AppData\Local\Programs\cursor\resources\app\extensions\cursor-socket> cursor --disable-extensions
PS C:\Users\conno\AppData\Local\Programs\cursor\resources\app\extensions\cursor-socket>
7

Thanks for the logs. I can see out\ is back in place, so the copy worked, but the issue is still there. Let’s narrow down the cause.

  1. When you run cursor --disable-extensions, please actually try sending a prompt to the agent in that mode. Does it work, or do you get the same error? This is the most important check. If the agent works with extensions disabled, then some third-party extension is blocking it.

  2. Do you have an antivirus or endpoint protection tool running like Defender, or a corporate EDR? This is a common cause on Windows. AV can kill the extension host or delete the out\ folder. Add the whole install folder to exclusions:

    %LOCALAPPDATA%\Programs\cursor

    After that, fully close Cursor, and check in Task Manager that Cursor.exe is not still running, then start it again.

  3. Check workspace trust. Open a brand new empty folder and try there. If the agent works in an empty folder, the problem is related to trust or settings in that specific project.

Between attempts, always fully quit Cursor via Task Manager. Otherwise an old process can interfere.

A permanent fix on our side is in progress, but I can’t share an ETA yet. Let me know what you see in step 1, running with --disable-extensions, since the next steps depend on that.