SkillGraph: Self-Evolving Multi-Agent Collaboration with Multimodal Graph Topology
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arXiv
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| Format: | Preprint |
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2026
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| author | Nie, Zheng Shen, Ruolin Yu, Xinlei Yin, Bo Zhang, Jiangning Hu, Xiaobin |
| author_facet | Nie, Zheng Shen, Ruolin Yu, Xinlei Yin, Bo Zhang, Jiangning Hu, Xiaobin |
| contents | Scaling vision-language models into Visual Multiagent Systems (VMAS) is hindered by two coupled issues. First, communication topologies are fixed before inference, leaving them blind to visual content and query context; second, agent reasoning abilities remain static during deployment. These issues reinforce each other: a rigid topology fails to leverage richer agent expertise, while static agents lack incentives to specialize for a given query. We address this with SkillGraph, a joint framework that evolves both agent expertise and communication topology. Within this framework, a Multimodal Graph Transformer (MMGT) encodes visual tokens, instruction semantics and active skill embeddings to predict a query-conditioned collaboration graph, replacing hand-crafted routing with dynamic, content-aware information flow. Complementing this, a Skill Designer distills and refines reasoning heuristics from failure cases, constructing a self-evolving multimodal Skill Bank. Crucially, updated skill embeddings are fed back into the MMGT, enabling the topology to adapt alongside capability growth. Experiments show that SkillGraph achieves consistent improvements across four benchmarks, five common MAS structures and four base models. Code is available at https://github.com/niez233/skillgraph. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_17503 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | SkillGraph: Self-Evolving Multi-Agent Collaboration with Multimodal Graph Topology Nie, Zheng Shen, Ruolin Yu, Xinlei Yin, Bo Zhang, Jiangning Hu, Xiaobin Artificial Intelligence Multiagent Systems Scaling vision-language models into Visual Multiagent Systems (VMAS) is hindered by two coupled issues. First, communication topologies are fixed before inference, leaving them blind to visual content and query context; second, agent reasoning abilities remain static during deployment. These issues reinforce each other: a rigid topology fails to leverage richer agent expertise, while static agents lack incentives to specialize for a given query. We address this with SkillGraph, a joint framework that evolves both agent expertise and communication topology. Within this framework, a Multimodal Graph Transformer (MMGT) encodes visual tokens, instruction semantics and active skill embeddings to predict a query-conditioned collaboration graph, replacing hand-crafted routing with dynamic, content-aware information flow. Complementing this, a Skill Designer distills and refines reasoning heuristics from failure cases, constructing a self-evolving multimodal Skill Bank. Crucially, updated skill embeddings are fed back into the MMGT, enabling the topology to adapt alongside capability growth. Experiments show that SkillGraph achieves consistent improvements across four benchmarks, five common MAS structures and four base models. Code is available at https://github.com/niez233/skillgraph. |
| title | SkillGraph: Self-Evolving Multi-Agent Collaboration with Multimodal Graph Topology |
| topic | Artificial Intelligence Multiagent Systems |
| url | https://arxiv.org/abs/2604.17503 |