Makes sense. 3 generic tools + summarize first is a nice approach to sidestepping the problem of too many tools. But it looks like it shifts the chokepoint around rather than eliminating it: instead of "choose the proper tool out of many", it shifts to "formulate the appropriate query to discover_data from the summary".

But in real applications, does the model reliably drill down from the general summary, or does it often just hang around at the level of the summary?