the budget for allowing a single engineer to deep dive on a bug that is annoying but also not bad enough that you can live with it for years is pretty big. $10k a month or more. My budget for Claude is $200/mo.

Why are you assuming letting Fable run wild and find the cause here cost under $200?

I used Fable once. Used through API and asked it to review one 2k word plan. It costed me 15 dollars and haven't used it since.