Git safety

These rules exist because one git checkout -- . erased two days of work. Follow them every time, not only when it feels risky.

Before any git command

1. git status. Read it.
2. If anything is modified or untracked, stop. Say what is there. Ask before proceeding with anything that could touch those files.
3. Suggest git stash push -m "<why>" if the user needs a clean tree and wants the work kept.

Commands that need explicit approval

Never run these on your own. Show the exact command, say what it will destroy, and wait for a yes.