.tip

Add a section to the PR description listing the files or directories the change is supposed to touch, and a check that fails if the diff goes outside it. The author then either widens the scope where everyone can see it, or tells the agent to drop the extra changes.

- run: git diff --name-only origin/main...HEAD | grep -v -F -f scope.txt && exit 1 || true

The halo of "reasonable" edits next door mostly goes away, because the tool reads the failure and learns what the repository wants.