{"slug": "which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving", "title": "Which Agent's Skill Should Change? Group-Relative Credit Assignment for Evolving Multi-Agent Teams", "summary": "A proposed method called group-relative credit assignment addresses the problem that cooperative language-model agents revising reusable skills cannot attribute a shared team reward to the responsible agent and skill, since existing methods credit skills present in each trajectory even though presence is not responsibility. The approach targets evolving multi-agent teams that improve without weight updates by revising reusable skills.", "body_md": "Cooperative language-model agents can improve without weight updates by revising reusable skills, but only if a shared team reward is traced to the responsible agent and skill. Existing methods credit the skills present in each trajectory, yet presence is not responsibility: a harmful skill active i", "url": "https://wpnews.pro/news/which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving", "canonical_source": "https://aiflash.com/news/137158/", "published_at": "2026-10-22 02:00:27+00:00", "updated_at": "2026-10-22 02:12:07.025371+00:00", "lang": "en", "topics": ["ai-agents", "ai-research", "large-language-models", "machine-learning"], "entities": [], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving", "markdown": "https://wpnews.pro/news/which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving.md", "text": "https://wpnews.pro/news/which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving.txt", "jsonld": "https://wpnews.pro/news/which-agent-s-skill-should-change-group-relative-credit-assignment-for-evolving.jsonld"}}