Claude 4 just refactored my entire codebase in one call. 25 tool invocations. 3,000+ new lines. 12 brand new files. It modularized everything. Broke up monoliths. Cleaned up spaghetti. None of it worked. But boy was it beautiful.
https://racingbunny.com/system/media_attachments/files/114/697/071/696/300/371/original/22bdacaf4266314c.png