Seems hella inefficient.
Better method start to realizing that everything that every program do is data transformations and or movement
Then you ask llm to subdivide data in a tree along the domain model, classifing streaming vs storing nodes
Then for each node you discuss with the ai for the best data structure
Then you ask for an interface that fully encapsulate the structure and every mutation only allows to go from a valid state to a valid state and bidding else is allowed to touch the state
And that's mostly it just connect all the interfaces until input goes to monitor or to storage or to api or wherever the destination is
In my experience it, or something close to it, is the only way. AI needs good code to be beaten out of it.
Efficient != effective, and the author outlines as much. Regardless, while you're technically correct, it's kinda like saying the Fantasy Land Specification[1] (aka the "Algebraic JavaScript Specification") is pure. The problem is that purely functional fantasy lands rarely exist outside of fairytales. In other words, life is a lot like JavaScript and never that simple.
[1] - https://github.com/fantasyland/fantasy-land