If you have a setting that determines the model, and the various places that use the model can assert the capabilities they need, that's kind of neat. But that assumes the model is determined at compile time and can't be changed later. That seems kind of niche?
It's a cool project showing off what you do at compile-time in modern rust. And of course projects don't need a reason to exist. But if there is one, that would have been a great addition to the readme in my eyes
https://github.com/yujonglee/openrouter-toolkit/blob/main/cr...