Its how software is built now in these palces.
From what I’ve seen of GitHub and AWS this year the answer is no. That’s despite me being bullish on LLMs and finding them highly productive.
in aws, some of the core bedrock services have been replaced with the new serving architecture. that thing was written basically with LLMs.
mind you, guy's a distinguished engineer, his team was basically all principals, but you can do it and some of the new teams are copying the style (though with less success, due to lack of technical skill).
An existing project has a well defined code base, test cases etc
If llms aren't able to migrate a good project then they wouldn't be of any use for general purpose programming