arXiv AI By Fangzhou Li, Pagkratios Tagkopoulos, Ilias Tagkopoulos

SkillFlow: Scalable and Efficient Agent Skill Retrieval System

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SkillFlow is an open, multi-stage retrieval system that helps AI agents selectively load relevant skills from a large library of community-contributed SKILL.md definitions. The pipeline uses dense retrieval, two rounds of cross-encoder reranking, and LLM-based selection to balance recall and precision. Evaluations on SkillsBench and Terminal-Bench show that SkillFlow improves performance when high-quality skills are available, but retrieval alone does not help if the corpus lacks executable skills for the target domain.

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