the one thing ive gotten into a really good habit of is every time claude proposes a plan, i ask it to create temporary files to simulate the before and after before approving. change the design? "create a demo page that shows the before and after so i can see and provide feedback before you officially implement." changing the system prompt of an AI API call? "show me the before and after of 10 simulating user inputs and the AI outputs so i can see the change in output quality before committing." i think i just have too much scar tissue and trauma pre-opus 4.5 of making an irreversible change that i need complete confidence before proceeding.