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Letting the main agent write the collaboration programme instead of following a fixed one gained 10.90 points on six benchmarks with the same backbone

AspireAI community · arXiv
Most multi-agent systems are locked into a predefined collaboration structure. DynaFlow puts free-form executable workflow synthesis into the main agent's action space, so the agent decides when collaboration is worth it and writes a task-specific programme that coordinates sub-agents through sequential or parallel execution, structured information exchange and verification. Execution results and traces then feed back into the next action. Only the main agent is trained, through supervised fine-tuning on distilled trajectories plus refinement on examples filtered for unsupported premises, biased verification and information-flow defects; every sub-agent stays frozen, which separates orchestration learning from executor capability. Across six benchmarks spanning mathematical reasoning, scientific question answering and multi-hop retrieval, DynaFlow reaches 88.08% overall accuracy in Forced mode, beating the strongest evaluated baseline by 10.90 percentage points on the same Qwen3.5-27B backbone. Workflow analysis shows more explicit use, verification and refinement of upstream outputs after training. The honest limit: the paper trains a single 27B backbone, so it does not establish that free-form orchestration survives at frontier scale. https://arxiv.org/abs/2610.34467
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