A Language for Describing Agentic LLM Contexts
The paper introduces the Agentic Context Description Language (ACDL), designed to specify the structure and dynamics of input contexts for large language models (LLMs). ACDL aims to standardize how LLM contexts are described, addressing the lack of formal methods in the field. The authors encourage the adoption of ACDL for clearer communication and documentation within the AI community.
- ▪ACDL provides a precise and readable way to describe LLM input contexts.
- ▪The language includes constructs for role message sequences, dynamic content, and conditional structures.
- ▪The authors demonstrate ACDL by documenting existing systems and variants.
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Computer Science > Artificial Intelligence arXiv:2605.01920 (cs) [Submitted on 3 May 2026] Title:A Language for Describing Agentic LLM Contexts Authors:Noga Peleg Pelc, Gal A. Kaminka, Yoav Goldberg View a PDF of the paper titled A Language for Describing Agentic LLM Contexts, by Noga Peleg Pelc and 2 other authors View PDF HTML (experimental) Abstract:Large language models are increasingly used within larger systems ("LLM agents"). These make a sequence of LLM calls, each call providing the LLM with a combination of instructions, observations, and interaction history. The design of the encoded information and its structure play a central role in the quality of the resulting system, leading to efforts spent on context engineering.
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