Multiple .plan Files and Incomplete Build Updates

[SkinnnyJay (Jonathan)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When using GPT-5 plan mode, Cursor generates multiple .plan files with random suffixes. Build actions show spinners and “done,” but tasks never update in either file.

Steps to Reproduce

1. Enter plan mode with GPT-5.
2. Make multiple plan edits within the same chat and trigger “Build.”
3. Observe duplicate .plan files and task completed doesn’t updates.

Expected Behavior

A single synchronized .plan file should update consistently and reflect completed build tasks.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.0-pre.22.patch.0 (Universal)
VSCode Version: 1.99.3
Commit: 159f7e129f630c2fad0f644285bdb14cc8a6e000
Date: 2025-11-10T22:59:27.440Z (6 hrs ago)
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

GPT5

Additional Information

I didn’t have existing plan files created before experiencing this issue.

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. This looks like a new variant of the plan mode issues we’re tracking.

Could you please share:

• Screenshots showing multiple .plan files with random suffixes in your file explorer
• A Request ID from when this happens (chat menu → Copy Request ID)
• Any console errors (Help → Toggle Developer Tools → Console tab) during the build process

About your build tasks not updating - this is a known issue the team is investigating. Some users found that switching the .plan file from Markdown to Preview mode can help display task status.

I’ll escalate this to the engineering team. The multiple .plan files issue is especially interesting since we haven’t seen that reported before.

[mitch_dev (Mitch Baylis)]

could just solve this with a custom command