Edit_file stopped working after update

Bug Reports
1

Describe the Bug

I accepted an update to Cursor today. After that, the AI assistant can’t edit any file using the edit_file tool.

  • The edit_file tool consistently fails to write proper content to files, instead writing only a single space character.
  • This occurs even when writing to existing files.
  • The run_terminal_cmd (which uses the shell) successfully writes files without issues.
  • File system permissions (checked with ls -la) appear correct.
  • The issue persists after re-adding folder permissions and restarting Cursor.
  • I am running macOS, and am not comfortable with granting Full Disk Access.

Steps to Reproduce

Any action where AI assistant tries to write a file.

Expected Behavior

Writing to files using the edit_file tool.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.0.0 (Universal)
VSCode Version: 1.96.2
Commit: 53b99ce608cba35127ae3a050c1738a959750860
Date: 2025-06-04T19:21:39.410Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 23.4.0

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

2

Can you confirm if this still occurs if you start a brand new chat, and also if you start a brand new project?

Also, a screenshot of this would be great!

5

Updating Cursor again resolved the issue. The fixed version is:

Version: 1.1.3 (Universal)
VSCode Version: 1.96.2
Commit: 979ba33804ac150108481c14e0b5cb970bda3260
Date: 2025-06-15T06:37:17.379Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 23.4.0