You need to have the AI write an increasingly detailed design and plan about what to code, assess the plan and revise it incrementally, then have it write code as planned and assess the code. You're essentially guiding the "Thinking" the AI would have to perform anyway. Yes, it takes more time and effort (though you could stop at a high-level plan and still do better than not planning at all), but it's way better than one-shotted vibe code.
It shouldn't be any longer than the actual code, just have it write "easy pseudocode" and it's still something that you can audit and have it translate into actual coding.
TDD is a great way to start the plan, stubbing things it needs to achieve with E2E tests being the most important. You still need to read through them so it won't cheat, but the codebase will be much better off with them than without them.
