Scaling a large tool surface

The two recipes below are about cost, not authorization: what happens when one domain grows past what a model can choose from well, and past what you want to...

The two recipes below are about cost, not authorization: what happens when one domain grows past what a model can choose from well, and past what you want to recompile on every listing.

Collected from COOKBOOK.md in the repository. Edit it there, not here.