ResearchResearch paperReinforcement Learning · Agents & Tool Use1 source · Oct 13, 2026

From Agents to Edges: Paired Optimization for Multi-Agent Collaboration

We introduce Paired Automated Communication Optimization (PACO), which jointly optimizes the instructions at both ends of each edge and their shared communication convention in systems built on black-box language models.

Key points

  • Strong individual agents do not guarantee effective collaboration.
  • Communication must align what one agent conveys with how another interprets and uses it.
  • A state-aware discounted bandit selects edges for refinement, while execution feedback guides paired revisions evaluated through staged end-to-end execution.
  • On a four-agent workflow evaluated across diverse multi-agent benchmarks, PACO consistently outperforms leading prompt-optimization and communication baselines.

Sources (1)

  • [1]From Agents to Edges: Paired Optimization for Multi-Agent Collaboration
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 13, 09:53 AM
    We introduce Paired Automated Communication Optimization (PACO), which jointly optimizes the instructions at both ends of each edge and their shared communication convention in systems built on black-box language models.
    Strong individual agents do not guarantee effective collaboration.

Extractive summary: sentences quoted from the sources.

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