LEMON AGENT Interactive example · from Start here: Review and save
The tangled diff
The date bug is fixed and all checks pass. The diff touches 14 files: one logic change, plus formatting cleanup my editor applied across the rest.
The checks pass, but the diff contains an unrelated formatting rewrite. What should you do?
The date fix turned out to break a different page. Undo it.
The undo takes the formatting changes in 13 other files with it. Everything was saved as one change.
Tests do not make unrelated edits relevant. Extra change makes review harder and recovery less precise.
Removed the formatting churn and reran the date check: still passing. The saved change is one file, described as “fix release date rollover”.
That I can read, and if we ever undo it, we undo exactly one thing.
The checkpoint now tells one coherent story and can be understood or reverted without dragging unrelated work along.
Yes, I’m confident. The formatting matches the current style guide.
Confidence wasn’t the question. Fourteen files is still fourteen files to review, and thirteen have nothing to do with the fix.
The issue is scope, not confidence. Judge the diff against the brief you approved.