I let agents break things 30 changes down the line. If something breaks, I add a check to my project validator and start over, with the validator providing instructions on what was wrong and how to fix it. It's all automatic, and now I have a guard against the exact same error in the future.
Some of these checks have caught thousands of the same error, even with the latest Opus 4.7 writing the original code.
Some of these checks have caught thousands of the same error, even with the latest Opus 4.7 writing the original code.