[BUG] Commits authored by claude-code@anthropic.com are attributed to unrelated GitHub user

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Summary

Claude Code created and merged a PR in my repository.

After the merge, a GitHub user named Karim13014 appeared in the repository's Contributors list even though they have never contributed to the repository and do not have collaborator access.

Investigation suggests that commits authored by:
claude-code@anthropic.com are being attributed by GitHub to that user's account.

Expected behavior

Claude Code commits should be attributed to the correct Claude Code identity and should not cause unrelated GitHub users to appear as repository contributors.

What Should Happen?

Actual behavior

A GitHub account unrelated to the repository, @Karim13014 (https://github.com/Karim13014) appears in the Contributors list after merging a Claude-generated PR.

Error Messages/Logs

Steps to Reproduce

Ask Claude Code to make a code change and create a PR.
Allow Claude Code to commit changes using its default git configuration.
Merge the generated PR into the default branch.
Open the repository's Contributors page on GitHub.
Observe that an unrelated GitHub user appears as a contributor.
Inspect the merge commit and note that the commit author email is:

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.165 (Claude Code)

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

Warp

Additional Information

_No response_