In a multi-step form, a "Next" button (type=button) is replaced on click, at the exact same position, by a "Save" submit button. A user's habitual double click lands the second click on the new submit button. If the form is already valid (prefilled name from a clone, etc.), the form submits and skips the intermediate step. Giving each button its own React key does not help: the new element is simply under the pointer.

Users sometimes ask AI coding assistants to 'clean up', 'reset', 'start fresh', 'remove old files', or 'reorganize the project'. These requests are ambiguous — the user might mean 'move unused files' or they might mean 'permanently delete everything I don't currently need.' Deletion is irreversible (unless there's a backup or git history). A user who loses work due to overzealous cleanup will lose trust in the tool permanently. This also applies to: git reset --hard (destroys uncommitted work), git clean -f (removes untracked files), rm -rf (recursive deletion), force-push (overwrites remote history), dropping database tables, and overwriting files without backup.