Formal Semantics for Agentic Tool Protocols: A Process Calculus Approach

📰 ArXiv cs.AI

Researchers propose a process calculus approach to formalize semantics for agentic tool protocols, enabling verification of agent interactions with external tools

advanced Published 27 Mar 2026

Action Steps

Define a process calculus framework for modeling agent-tool interactions
Formalize the semantics of agentic tool protocols using the process calculus approach
Verify the correctness of agent protocols using the formalized semantics
Apply the framework to existing paradigms such as Schema-Guided Dialogue (SGD) and Model Context Protocol (MCP)

Who Needs to Know This

This research benefits AI engineers and researchers working on large language model agents, as it provides a formal framework for verifying agent protocols and ensuring reliable interactions with external tools

Key Insight

💡 A formal semantics framework is essential for verifying the correctness of agent protocols and ensuring reliable interactions with external tools

Key Takeaways

Researchers propose a process calculus approach to formalize semantics for agentic tool protocols, enabling verification of agent interactions with external tools

Full Article

Title: Formal Semantics for Agentic Tool Protocols: A Process Calculus Approach

Abstract:
arXiv:2603.24747v1 Announce Type: new Abstract: The emergence of large language model agents capable of invoking external tools has created urgent need for formal verification of agent protocols. Two paradigms dominate this space: Schema-Guided Dialogue (SGD), a research framework for zero-shot API generalization, and the Model Context Protocol (MCP), an industry standard for agent-tool integration. While both enable dynamic service discovery through schema descriptions, their formal relationshi

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