Background agents cannot update a PR if the PR was manually updated after the agent's initial commit

Support Bug Reports
1

Where does the bug appear (feature/product)?

Background Agent (GitHub, Slack, Web, Linear)

Describe the Bug

Background agents cannot update a PR if the PR was manually updated after the agent’s initial commit

Steps to Reproduce

  1. Start an agent to work on a task (“change text color from red to blue”)
  2. When the agent finishes, create a PR from the agent page ( https://cursor.com/agents?id=bc )
  3. Add a manual commit to the PR (such as updating the branch with the latest from main)
  4. Go back to the agent page, and add a followup: “actually change it to green”
  5. When it’s done, the agent page will imply the PR was updated, but if you go on GitHub, no new commits are added.

At this point the agent is essentially bricked and it won’t commit any more changes.

Btw, Codex has this same limitation, but it will actually inform you that it can’t make any more commits. It will tell you to create a new PR/agent, since you’ve introduced manual changes.

Expected Behavior

Should either:

  1. Update the existing PR
  2. Offer to create a new PR
  3. Inform the user about the limitation

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Agents website and API

For AI issues: which model did you use?

gpt-5-high

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

2

Thanks for the report. Can you please share a request ID?

4

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