Fix · GitHub and Git

Undo my last commit

What you may see

I committed too early or with the wrong message or files
I want to go back one step

Most likely cause

The saved version is wrong, and the right way to undo depends on whether it was already pushed.

Check first (about two minutes)

Run git status and git log --oneline -3 -- is the last commit also on GitHub (compare with origin)?

The fix prompt

What you type here never leaves your browser. The search runs on this page, and nothing is sent to a server or to an AI.

The exact error or what you see

What you did before it happened

Kept only in this browser, on this device. Keys and passwords are removed before anything is saved.

Prompt language

You are a patient senior engineer who knows Git and GitHub very well and explains them to people who are not developers. I am not a developer, so explain every step in plain words and tell me exactly which button, menu or command you mean. If you are not sure about something, say so; do not guess.

THE PROBLEM
Undo my last commit

THE EXACT ERROR OR WHAT I SEE
[paste the exact error here]

WHAT I DID BEFORE IT HAPPENED
[write in a few words what you did before it happened]

MOST LIKELY CAUSE
The saved version is wrong, and the right way to undo depends on whether it was already pushed.

DO THESE STEPS, IN THIS ORDER
1. Run git status and git log --oneline origin/main..HEAD to tell me if my last commit was pushed.
2. If NOT pushed: undo it but keep my edits with git reset --soft HEAD~1. For a wrong message only, use git commit --amend.
3. If it WAS pushed: make a new commit that reverses it with git revert <hash>. Never rewrite pushed history.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- git log shows the commit gone (or reverted) and my files are as I expect.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not use --hard unless I ask for it and understand that it erases edits.
- Anything I did not ask about: the design, the text, other pages, other settings or the data.
- Do not delete files, data or branches, do not reset or force-push, and do not rewrite history, unless you first show me exactly what would be lost and I say yes.
- Do not paste, print or ask me to paste a password or secret key into this chat. If one is needed, tell me which settings page of the right service to store it in.

WHEN YOU FINISH
Explain in simple words what you changed (file by file or setting by setting), why you changed it, and how I can undo it.

Paste it into Claude, ChatGPT, Gemini or Cursor, then follow what it says.

After you tried it, did it work?

Steps

Run git status and git log --oneline origin/main..HEAD to tell me if my last commit was pushed.
If NOT pushed: undo it but keep my edits with git reset --soft HEAD~1. For a wrong message only, use git commit --amend.
If it WAS pushed: make a new commit that reverses it with git revert <hash>. Never rewrite pushed history.

Do not do this

Do not use git reset on commits that are already on GitHub.
Do not use --hard unless I ask for it and understand that it erases edits.

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