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Preprint Oct 2026

Who Speaks, Who Authorizes, Who Acts? Understanding Trust Boundaries in Multi-Agent LLMs

Multi-agent LLM systems exchange messages before acting through tools, but message delivery, signing authority, and tool-side enforcement are separate trust boundaries. We represent them as communication, authorization, and execution structures, and use the authority cut to characterize the smallest independently compr...

Jun-Ru Zhu, Xin Chen, Hang Lyu et al. · 0 citations
Conference Open access Aug 2026

FlowCache: Workflow-Aware Intermediate-State Reuse for Multi-Tool LLM Serving

Modern AI backend services have evolved from single-turn prompt completion into complex workflows that interleave retrieval, task planning, external tool invocation, and multi-step generation. Existing caching mechanisms—KV-cache reuse, RAG document caching, and model cold-start reduction—optimise individual pipeline c...

Feng Wang, Mu-Zi Li, Feng-Jiao Sheng et al. · 0 citations

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