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arXiv — cs.AI preprintsInternational19 October 2026

Explore Separately, Adopt Selectively: Execution-Guided Tool Use over Large Tool Libraries

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arXiv:2610.22688v1 Announce Type: cross Abstract: Large language model agents must discover relevant tools from large libraries, e.g., thousands of tools, as new needs arise during task execution. When several candidates could satisfy the same need, execution may be required to identify the relevant one. Investigating candidates in a shared trajectory can leave alternatives unexplored or allow failed attempts to influence subsequent reasoning. To address this, we present BRIA (BRanch-Inspect-Adopt), a simple yet effective agent that temporarily isolates candidate investigations in separate bra
— arXiv — cs.AI preprints

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