ResearchResearch paperRetrieval, RAG & Search · Large Language Models · Agents & Tool Use1 source · Oct 21, 2026

Let Agents Design How They Search: Automatic Interface Optimization for Agentic Search

Agentic search depends on the interface through which a language-model agent accesses and explores a corpus.

Key points

  • We introduce SearchWeaver, a framework for automatic search interface optimization guided by downstream search performance.
  • A proposer uses execution trajectories and task rewards to jointly revise corpus artifacts, executable tools, and usage instructions.
  • With GPT-5.4-nano, the optimized interfaces improve answer accuracy from 71.6% to 78.4% on BrowseComp-Plus and average nDCG@10 from 45.7 to 55.0 across four BRIGHT subsets over Direct Corpus Interaction.
  • These findings highlight the value of jointly optimizing corpus artifacts, executable tools, and usage instructions to develop effective search interfaces.

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