Stacked pull requests make large AI-generated diffs human-reviewable by…

Stacked pull requests make large AI-generated diffs human-reviewable by splitting work into ordered, independently testable PRs so each merge and rollback affects far less code. Treat each stack frame as a mini-change: keep it focused, run CI and require approvals per frame, and land frames sequentially so bisects and rollbacks are simple. This only pays off if you discipline automation to produce layered outputs rather than one giant patch.