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Skill Self-Play: Pushing the Frontier of LLM Capability with Co-Evolving Skills

Research LLM Agents

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Overall 88
Content 95
Popularity 71

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Merged summary

TL;DR - Skill Self-Play is a reinforcement-learning framework in which task generation, problem solving, and an agent skill library co-evolve. It aims to combine open-ended task diversity with reliable, skill-based verification.

  • A proposer generates challenging tasks conditioned on dynamically sampled skills.
  • A solver explores candidate solutions, while a controller uses execution feedback to update and expand the skill library.
  • Dynamic skill routing supports broad exploration while preserving scenario-specific, verifiable execution.
  • Evaluations on tool-use and reasoning benchmarks report improvements for capable backbones and initially misaligned models.

Sources (1)

Skill Self-Play: Pushing the Frontier of LLM Capability with Co-Evolving Skills

arXiv cs.CL Siyuan Huang, Pengyu Cheng, Haotian Liu, Tao Chen, Yihao Liu, Jingwei Ni, Shijie Zhou, Ziyi Yang, Gangwei Jiang, Mengyu Zhou, Yu Cheng, Xiaoxi Jiang, Guanjun Jiang 2026-07-24 arXiv:2607.22529
Public signals Hugging Face upvotes 47
Providers: Hugging Face · Upvotes 47 OpenAlex · N/A Publisher · N/A Semantic Scholar · N/A X · N/A Fetched 2026-08-26 14:45:53.243631 UTC

TL;DR - Skill Self-Play is a reinforcement-learning framework in which task generation, problem solving, and an agent skill library co-evolve. It aims to combine open-ended task diversity with reliable, skill-based verification.

  • A proposer generates challenging tasks conditioned on dynamically sampled skills.
  • A solver explores candidate solutions, while a controller uses execution feedback to update and expand the skill library.
  • Dynamic skill routing supports broad exploration while preserving scenario-specific, verifiable execution.
  • Evaluations on tool-use and reasoning benchmarks report improvements for capable backbones and initially misaligned models.
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