From Multi-Agent to Single-Agent: When Is Skill Distillation Beneficial?
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Abstract (arXiv)
Multi-agent systems (MAS) for structured data-science tasks externalize analytical control through workflows spanning stages, tools, shared state, verification, and repair. Distilling such workflows into a single-agent skill can reduce orchestration overhead, but it remains unclear which workflow components should cross the control boundary. We distinguish capability resources, which expand what an agent can do, from pipeline guidance, which constrains which solutions it explores. On the same causal-estimation instances, adding task-qualified source pipeline guidance to a capability-matched skill changes normalized utility by +19.6 points under method-selection accuracy but -10.3 points under numerical error. To explain this reversal, we introduce Behavior-Outcome Freedom (F), a pre-synthesis diagnostic of signed behavior-outcome rank mismatch, and formalize its candidate-conditional role through Signed Anchor-Rank Transfer. Motivated by this mechanism, we propose AdaSkill, which preserves validated capability resources, removes runtime orchestration, and conditionally inherits pipeline guidance using a calibrated rule over F. Across 16 capability-matched interventions, the native-scale Full-minus-Discard effect decreases across the continuous F scale (r = -0.80, p < 0.001), while a 15-treatment atomic sweep localizes the reversal to pipeline guidance. Across 11 datasets spanning four structured data-science task families, AdaSkill combines strong task performance with substantially lower deployment overhead.
Key facts. Cited by 6 papers in the map (data through 7 Oct 2026). Builds on 32 of its 61 references that are in the map. First posted on arXiv 2 Apr 2026.
Builds on
32 of 61 references.
References · 32
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20 more
- 2026SkillRL: Evolving Agents via Recursive Skill-Augmented Reinforcement Learningcited by 252
- 2024Scaling Large Language Model-based Multi-Agent Collaborationcited by 235
- 2024Spider 2.0: Evaluating Language Models on Real-World Enterprise Text-to-SQL Workflowscited by 223
- 2026Trace2Skill: Distill Trajectory-Local Lessons into Transferable Agent Skillscited by 161
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Built on by
Citing papers per year: 2026: 6.
6 papers.
- 2026SkillsVote: Lifecycle Governance of Agent Skills from Collection, Recommendation to Evolutioncited by 18
- 2026Contextual Agentic Memory is a Memo, Not True Memorycited by 5
- 2026LLM Agents Are Latent Context Managers: Eliciting Self-Managed Context via State Proprioceptioncited by 3
- 2026Reviewer Scores Are Not Comparable Across Research Areas in ML Peer Reviewcited by 2
- 2026Attributing Structured-Output Gains in Function Calling: Interface Alignment versus Procedural Transfercited by 0
- 2026Distilling Agentic Systems: A Roadmap across Models, Artifacts, and Harnessescited by 0
- 2026Distilling Agentic Systems: A Roadmap across Models, Artifacts, and Harnesses29 Sep 2026
- 2026Attributing Structured-Output Gains in Function Calling: Interface Alignment versus Procedural Transfer1 Jul 2026
- 2026LLM Agents Are Latent Context Managers: Eliciting Self-Managed Context via State Proprioception29 Jun 2026
- 2026SkillsVote: Lifecycle Governance of Agent Skills from Collection, Recommendation to Evolution18 May 2026
- 2026Reviewer Scores Are Not Comparable Across Research Areas in ML Peer Review30 Apr 2026
- 2026Contextual Agentic Memory is a Memo, Not True Memory30 Apr 2026