Language as action and coordination: A linguistic framework for agentic AI
Linguistic Research 43(Special Edition) 2026
Recent advances in large language models, multimodal systems, and agentic AI invite a re-examination of language from the perspective of linguistic theory. This article argues that language in contemporary AI systems should be understood not only as a medium of representation, but also as an interface for action, a substrate for memory, and a coordination protocol for distributed intelligence. The argument proceeds in three steps. First, I reinterpret prompting and tool use through speech act theory and pragmatics: prompts, system instructions, and function calls do not merely describe desired outputs; they perform operations that reshape model behavior and sometimes trigger consequential actions. Second, I show that agentic AI extends this language-as-action view into a broader ecology of semi-structured communication, where natural language, JSON, Markdown, memory files, skill descriptions, handoff protocols, and governance rules jointly organize the work of agents. Third, I connect this framework to representational geometry and typology-aware evaluation, arguing that typological diversity provides a principled way to probe the structure and limits of model-internal semantic spaces. The resulting view treats LLMs and agent systems as both engineering artifacts and experimental environments for linguistic theory. It suggests that linguistics can contribute directly to AI by clarifying how meaning, context, action, repair, and social coordination are encoded, operationalized, and evaluated in artificial systems.