ResearchResearch paperSafety & Alignment · Agents & Tool Use1 source · Oct 7, 2026

Know the Shape, Find the Fault: Topology-Conditioned Diagnosis of Multi-Agent LLM Failures

We analyze the relationship between communication topology and failure patterns and introduce MAScope, a two-stage framework for topology-conditioned diagnosis.

Key points

  • Multi-agent LLM systems coordinate task execution through exchanges of information among agents.
  • Communication topology captures how agents exchange information and provides structural cues for distinguishing coordination failure modes.
  • Using these cues for diagnosis requires establishing how topology relates to failure patterns and recovering the relevant structure from execution traces that lack explicit topology labels.
  • These results show that topology-conditioned context improves failure diagnosis and supports lower-cost deployment.

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