Verifiable Semantics for Agent-to-Agent Communication

Fuente: arXiv
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Main Authors: Schoenegger, Philipp, Carlson, Matt, Schneider, Chris, Daly, Chris
Format: Preprint
Published: 2026
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author Schoenegger, Philipp
Carlson, Matt
Schneider, Chris
Daly, Chris
author_facet Schoenegger, Philipp
Carlson, Matt
Schneider, Chris
Daly, Chris
contents Multiagent AI systems require consistent communication, but we lack methods to verify that agents share the same understanding of the terms used. Natural language is interpretable but vulnerable to semantic drift, while learned protocols are efficient but opaque. We propose a certification protocol based on the stimulus-meaning model, where agents are tested on shared observable events and terms are certified if empirical disagreement falls below a statistical threshold. In this protocol, agents restricting their reasoning to certified terms ("core-guarded reasoning") achieve provably bounded disagreement. We also outline mechanisms for detecting drift (recertification) and recovering shared vocabulary (renegotiation). In simulations with varying degrees of semantic divergence, core-guarding reduces disagreement by 72-96%. In a validation with fine-tuned language models, disagreement is reduced by 51%. Our framework provides a first step towards verifiable agent-to-agent communication.
format Preprint
id arxiv_https___arxiv_org_abs_2602_16424
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Verifiable Semantics for Agent-to-Agent Communication
Schoenegger, Philipp
Carlson, Matt
Schneider, Chris
Daly, Chris
Artificial Intelligence
Multiagent Systems
Multiagent AI systems require consistent communication, but we lack methods to verify that agents share the same understanding of the terms used. Natural language is interpretable but vulnerable to semantic drift, while learned protocols are efficient but opaque. We propose a certification protocol based on the stimulus-meaning model, where agents are tested on shared observable events and terms are certified if empirical disagreement falls below a statistical threshold. In this protocol, agents restricting their reasoning to certified terms ("core-guarded reasoning") achieve provably bounded disagreement. We also outline mechanisms for detecting drift (recertification) and recovering shared vocabulary (renegotiation). In simulations with varying degrees of semantic divergence, core-guarding reduces disagreement by 72-96%. In a validation with fine-tuned language models, disagreement is reduced by 51%. Our framework provides a first step towards verifiable agent-to-agent communication.
title Verifiable Semantics for Agent-to-Agent Communication
topic Artificial Intelligence
Multiagent Systems
url https://arxiv.org/abs/2602.16424