# When Do Causal World Models Help Modular LLM Agents

**Published:** October 2, 2026
**Author:** Xinyuan Song, Zekun Cai
**Source:** arXiv — cs.AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/when-do-causal-world-models-help-modular-llm-agents

LLM agents increasingly act through modular systems, such as order, payment, inventory, and shipment services, where actions in one module change which transitions are valid in another. Standard world models usually fit observational traces, but this is not the quantity needed…

> From the original source: **arXiv — cs.AI**
> [Read full article at arXiv — cs.AI](https://arxiv.org/abs/2610.00012)

**Tags:** #arXiv

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