Original link: How GitHub Copilot and AI agents are saving legacy systems / GitHub blog.
All experienced developers know that it is totally BS to hand over a huge COBOL code base to an AI and get working Java code back. Software development is hard.
But the process described here is serious.
They still work with developers "The COBOL experts provided the legacy system knowledge" and "Humans must stay in the loop for validation".
It is clearly stated "The reality check: It’s not a silver bullet". And a quote:
Everyone who’s currently promising you, ‘hey, I can solve all your mainframe problems with just one click’ is lying to you.
They do generate some Java code. But if you count lines of text in the article then understand/explaining/documenting old code vs generate new code is like 100:1. Generating code is a minor thing. The big benefit of AI is analyzing the old code!
This is very much the same process as Morgan Stanley is using.