AWS's answer to an AI-caused outage is mandatory peer review for AI-generated changes. So the solution is human oversight, the same humans they've been cutting by the thousands. They took the human out, it broke, now the human goes back in. https://philippdubach.com/posts/a-bull-case/ gets into why domain expertise is going up in value, not down.
is that actually their approach? amazon already had a technique for limiting access to prod, by denying access without one of your team members agreeing that that needs to be done.
maybe they skipped it to get access to prod in some way, such that the cloudformation could be deployed from a developer desktop? or the thing they got permissions to has too broad of permissions.
a choice of "a person needs to read this" vs "a machine needs to push back on this" has amazon as far as ive seen push to the latter