A tool-caller is best not when it thinks the most or holds the most instruments, but when it
spends deliberation only where deliberation pays — think hard on ambiguous / multi-step turns,
act directly on unambiguous single-tool turns, and abstain / ask / refuse correctly — and
every one of those decisions is execution/rubric-verified, decontaminated, and grounded in… See the full description on the dataset page:
https://huggingface.co/datasets/Jables/caliber-adaptive-toolcall-v2.