arxivcs.SEcs.AI2026-07-04
The "I Don't Know" Filter: Enhancing Agentic Reliability in Function Calling
Stefan Broecker, Mason del Rosario, Boris Selitser, Thomas Strohmer
The language models that underpin agents have seen a rapid rise in performance on function calling benchmarks. However, the metrics used in the training and evaluation of these models often encourage models to make positive claims even when the answer is uncertain, leading to hal…