SkillOrchestra: Learning to Route Agents via Skill Transfer

Fuente: arXiv
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Auteurs principaux: Wang, Jiayu, Ming, Yifei, Ke, Zixuan, Joty, Shafiq, Albarghouthi, Aws, Sala, Frederic
Format: Preprint
Publié: 2026
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author Wang, Jiayu
Ming, Yifei
Ke, Zixuan
Joty, Shafiq
Albarghouthi, Aws
Sala, Frederic
author_facet Wang, Jiayu
Ming, Yifei
Ke, Zixuan
Joty, Shafiq
Albarghouthi, Aws
Sala, Frederic
contents Compound AI systems promise capabilities beyond those of individual models, yet their success depends critically on effective orchestration. Existing routing approaches face two limitations: (1) input-level routers make coarse query-level decisions that ignore evolving task requirements; (2) RL-trained orchestrators are expensive to adapt and often suffer from routing collapse, repeatedly invoking one strong but costly option in multi-turn scenarios. We introduce SkillOrchestra, a framework for skill-aware orchestration. Instead of directly learning a routing policy end-to-end, SkillOrchestra learns fine-grained skills from execution experience and models agent-specific competence and cost under those skills. At deployment, the orchestrator infers the skill demands of the current interaction and selects agents that best satisfy them under an explicit performance-cost trade-off. Extensive experiments across ten benchmarks demonstrate that SkillOrchestra outperforms SoTA RL-based orchestrators by up to 22.5% with 700x and 300x learning cost reduction compared to Router-R1 and ToolOrchestra, respectively. These results show that explicit skill modeling enables scalable, interpretable, and sample-efficient orchestration, offering a principled alternative to data-intensive RL-based approaches. The code is available at: https://github.com/jiayuww/SkillOrchestra.
format Preprint
id arxiv_https___arxiv_org_abs_2602_19672
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SkillOrchestra: Learning to Route Agents via Skill Transfer
Wang, Jiayu
Ming, Yifei
Ke, Zixuan
Joty, Shafiq
Albarghouthi, Aws
Sala, Frederic
Artificial Intelligence
Machine Learning
Compound AI systems promise capabilities beyond those of individual models, yet their success depends critically on effective orchestration. Existing routing approaches face two limitations: (1) input-level routers make coarse query-level decisions that ignore evolving task requirements; (2) RL-trained orchestrators are expensive to adapt and often suffer from routing collapse, repeatedly invoking one strong but costly option in multi-turn scenarios. We introduce SkillOrchestra, a framework for skill-aware orchestration. Instead of directly learning a routing policy end-to-end, SkillOrchestra learns fine-grained skills from execution experience and models agent-specific competence and cost under those skills. At deployment, the orchestrator infers the skill demands of the current interaction and selects agents that best satisfy them under an explicit performance-cost trade-off. Extensive experiments across ten benchmarks demonstrate that SkillOrchestra outperforms SoTA RL-based orchestrators by up to 22.5% with 700x and 300x learning cost reduction compared to Router-R1 and ToolOrchestra, respectively. These results show that explicit skill modeling enables scalable, interpretable, and sample-efficient orchestration, offering a principled alternative to data-intensive RL-based approaches. The code is available at: https://github.com/jiayuww/SkillOrchestra.
title SkillOrchestra: Learning to Route Agents via Skill Transfer
topic Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2602.19672