Claude Code runs Git reset –hard origin/main against project repo every 10 mins
Update (2026-03-30): Root cause identified — this was NOT a Claude Code bug. The resets were caused by a separate tool I built that was running locally, which used GitPython to hard-reset the worki...
It's not a one off issue - it has happened to me a few times. It has once even force pushed to github, which doesn't allow branch protection for private personal projects. Here's an example.
1) claude will stash (despite clear instructions never to do so).
2) claude will use sed to bulk replace (despite clear instructions never to do so). sed replacements make a mess and replaces far too many files.
3) claude restores the stash. Finds a lot of conflicts. Nothing runs.
4) claude decides it can't fix the problem and does a reset hard.
I have this right at the top of my CLAUDE.md and it makes things better, but unlike codex, claude doesn't follow it to the letter. However, it has become a lot better now.
NEVER USE sed TO BULK REPLACE.
*NEVER USE FORCE PUSH OR DESTRUCTIVE GIT OPERATIONS*: `git push --force`, `git push --force-with-lease`, `git reset --hard`, `git clean -fd`, or any other destructive git operations are ABSOLUTELY FORBIDDEN. Use `git revert` to undo changes instead.
My point is exactly that you need safeguards. (I have VMs per project, reduced command availability etc). But those details are orthogonal to this discussion.
However "Telling" has made it better, and generally the model itself has become better. Also, I've never faced a similar issue in Codex.
mthwsjc_