Fix · Problems with AI tools

The AI fixed one thing and broke another (it used to work)

Blocks your work

What you may see

A feature that worked before stopped after the latest change

Most likely cause

Changes touch shared code, and nothing automatic checks the old features after each change.

Check first (about two minutes)

Find the last time the feature worked: a commit or a date.

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 careful senior engineer who reviews work done by AI coding tools, keeps projects safe, and explains everything 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
The AI fixed one thing and broke another (it used to work)

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
Changes touch shared code, and nothing automatic checks the old features after each change.

DO THESE STEPS, IN THIS ORDER
1. Compare the last working commit and now for the files related to the feature (git diff <good> HEAD -- <paths>).
2. Find the exact change that broke it (bisect: test the commits in between).
3. Fix only that change without undoing the new feature, and add a small test that would have caught it.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- Both the new feature and the old one work, and the new test passes.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not remove the new feature to restore the old one.
- 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

Compare the last working commit and now for the files related to the feature (git diff <good> HEAD -- <paths>).
Find the exact change that broke it (bisect: test the commits in between).
Fix only that change without undoing the new feature, and add a small test that would have caught it.

Do not do this

Do not ask the AI to rewrite the whole file.
Do not remove the new feature to restore the old one.

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