Cursor: Agent Execution Timed Out

What it means

Cursor's extension host did not finish starting within 60 seconds, so Agent features could not initialize. The same root cause shows up as "Timeout waiting for EverythingProvider" in network diagnostics.

Causes

• The extension host did not finish starting within 60 seconds (official docs say causes vary).
• On managed or enterprise machines, endpoint security software (antivirus, EDR) is one possible cause: per-file scanning latency on the JavaScript modules the extension host reads at startup can push startup past Cursor's internal timeout.

How to fix it

1. 1
   Fix 1.

   Collect logs before changing anything: press Cmd/Ctrl+Shift+P and run Developer: Export Logs..., then select Main, Window, and Extension Host.

   YAML

   Copy

   Developer: Export Logs...

2. 2
   Fix 2.

   Check Output -> Extension Host (Cmd/Ctrl+Shift+P -> "Output", then pick "Extension Host"). If it is empty, take a screenshot; an empty panel is a strong diagnostic signal. Share the exported zip and screenshot with support, along with your OS and Cursor version.

3. 3
   Fix 3.

   If IT confirms an endpoint security agent is active, add both process and path exclusions from the Endpoint Security Configuration page. Windows paths include %LOCALAPPDATA%\Programs\cursor\ (user install), %ProgramFiles%\cursor\ (system install) and %APPDATA%\Cursor\; on macOS exclude /Applications/Cursor.app/. Then restart Cursor and test Agent.

   Snippet

   Copy

   %LOCALAPPDATA%\Programs\cursor\Cursor.exe
   %ProgramFiles%\cursor\Cursor.exe
   %APPDATA%\Cursor\
   /Applications/Cursor.app/

4. 4
   Fix 4.

   To identify active security products on Windows, run the documented commands in an Administrator PowerShell window.

   Snippet

   Copy

   Get-CimInstance -Namespace root/SecurityCenter2 -ClassName AntiVirusProduct |
     Select-Object displayName, pathToSignedProductExe
   fltmc

5. 5
   Fix 5.

   Cursor IDE 3.23 (Oct 1, 2026) release notes: if the extension host that powers Cursor's AI features stops responding for about a minute, Cursor restarts it automatically, so you no longer need to reload the window. The same release fixed extension hosts deadlocking at startup.