Ask HN: Good LLM tool-use examples?

Hia, I'm working on a query-builder tool for searching medical databases that translates a clinician's natural-language query into an existing IR which maps onto SQL. This entails some retrieval aspects which I'm planning to implement using function calling (aka tool use).

Please share examples of LLM tool use / function calling; any tips or learnings in this area would also be much appreciated!

Thanks, extasia