Answer to: How to deal with a programmer who acts as a proxy for AI?

What are my options? Try to get them fired. As you mention, this is likely impossible in your particular situation. But low code quality is low code quality, regardless of the tools used to generate it. Timebox your code review time. It's easy to get DOSed by AI generated PRs, so limiting your review time will protect your flow-time as well as serve as backpressure on their slop. Unfortunately, this will usually lead to someone else not doing code review. Flood them with PRs. Fight fire with fire. If they're busy reviewing your code, then they're generating less slop. If they complain, then you point out all the work you're doing to review their vibes. Don't do code review. Just ship that slop to prod and let them suffer the consequences of their work-product. Talk with the engineer and persuade them to behave differently. Ideally, your manager should be doing this - that's their job after all. But sometimes it will fall to engineers to lead other engineers away from evil.