Forget sandboxing. I'd say review every command it puts out and avoid auto-accept. Right now given inference speeds running 2 or 3 parallel Claude sessions in parallel and still manually accept is still giving me a 10x productivity boost without risking disastrous writes. I know I feel like a caveman not having the agent own the end to end code to prod push but the value for me has been in tightening the innerloop. The rest is not a big deal.