Researchers introduce COSPLAY, an AI framework that lets language models learn and reuse skills to complete multi-step tasks—solving a core weakness in AI decision-making for long, complex jobs

Researchers at multiple institutions published COSPLAY, a framework pairing an LLM (AI text-understanding system) decision agent with a learnable skill bank that discovers reusable strategies from trial-and-error attempts. The LLM learns which stored skills to retrieve and chain together across many steps—a capability that existing LLMs struggle with because they typically forget patterns between separate tasks.