I built a Klatt formant synthesizer with Claude from ~120 academic papers. Every parameter cites its source, the architecture is declarative YAML with phased rule execution and dependency resolution.

Here's what "spaghetti" looks like:

https://github.com/ctoth/Qlatt/blob/master/public/rules/fron...

One thing I want to point out. Before I started, I gathered and asked Claude to read all these papers:

https://github.com/ctoth/Qlatt/tree/master/papers

Producing artifacts like this:

https://github.com/ctoth/Qlatt/blob/master/papers/Klatt_1980...

Note how every rule and every configurable thing in the synthesizer pipeline has a citation to a paper? I can generate a phrase, and with the "explain" command I can see precisely why a certain word was spoken a certain way.