#12 most commonAI-loopLovableBolt.newCursorReplitv0Windsurf

The AI broke something that used to work (regression)

I asked for a small change and now another page/feature is broken or missing.

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What it means

When the AI changes one thing, it sometimes rewrites nearby code it didn't need to touch. Your old feature was collateral damage.

How to fix it: paste this prompt into your AI builder

Fix prompt for Lovable, Bolt, Cursor, Replit, v0, Windsurf
Something that used to work is now broken after your last change. Do not write new code yet. Compare the current version with the previous working version and list every file and function you changed. Identify which change broke [describe the feature]. Restore the original behaviour of that feature while keeping the new change I asked for, editing only the specific lines responsible. Do not refactor, rename, or restyle anything else. Afterwards, list what you changed.

If the AI can't fix it: manual steps

  1. Use version history to compare or restore the version before the change.
  2. If you use GitHub, commit after every working step so you can always go back.
  3. Ask for one change per message, and say 'don't touch anything else'.

Where this happens

Seen in these AI app builders and editors:

LovableBolt.newCursorReplitv0Windsurf

Sources

Related AI-loop errors

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