worlds

Definition

Either the environment an agent acts in, or the internal predictive model it holds of that environment. The latter — a world model — lets a system simulate consequences before acting, which cuts how often it must learn from real interaction, an expensive resource in robotics. The plural also appears in open-world settings, meaning the situations and categories are not enumerated in advance.

Explainers using this term

• Paper Walkthrough: Code as Worlds — An Agent That Writes the World Down as Runnable CodeCode as Worlds: Agentic Discovery of Executable World Representations for Physical Reasoning
• Paper Explained: EnvHarness — Reshaping an Agent's Training World Without Rebuilding ItEnvHarness: Awakening Static Worlds for Agent Learning