Mixed
It did the migration but completely missed the conventions that the frontend was using to call the backend
oldnewthing on Hacker News
In the thread “Opus 4.5 is not the normal AI agent experience that I have had thus far”
Helped: One-shotting most ideas with iterations.
Got in the way: Missing frontend conventions in complex existing codebase.
… This weekend I migrated the backend for the SaaS I am building from Python to .NET Core. It did the migration but completely missed the conventions that the frontend was using to call the backend. While the converion itself went OK, every user journey was broken. …