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Strabo demonstrates that declarative protocols like Langshaw can effectively interoperate with industry standards such as Google's UCP, offering a viable path for incremental adoption of formal agent specifications without requiring a complete system overhaul. This interoperability validates the practical relevance of recent advances in multiagent modeling for real-world e-commerce applications.
Sources coveringarXiv, Latent Space, NVIDIA, LessWrong

Strabo: Declarative Specification and Implementation of Agentic Interaction Protocols

arXiv2 min read

arXiv:2606.05043v1 Announce Type: new Abstract: The last few years have witnessed major advances in the modeling and implementation of multiagent systems based on declarative interaction protocols. Our contribution, Strabo, establishes the relevance of these advances to ongoing industry efforts in Agentic AI. Specifically, we consider UCP, the Universal Commerce Protocol, a recent Google-led effort to standardize e-commerce interactions for AI agents. Our exercise is in two parts. One, we model the part of UCP dealing with checkouts as a declarative Langshaw protocol and implement agents using Peach, a programming model for Langshaw. This part of the exercise brings out the advantages of formal, declarative specifications. Two, we show that Peach agents can interoperate with UCP agents implemented by Google, thereby establishing the fidelity of our approach with respect to UCP. Such interoperation enables the incremental introduction of declarative protocols and agents into a conventional setting, indicating a pathway by which EMAS ideas could influence practice without demanding a wholesale update.

Abstract:The last few years have witnessed major advances in the modeling and implementation of multiagent systems based on declarative interaction protocols. Our contribution, Strabo, establishes the relevance of these advances to ongoing industry efforts in Agentic AI. Specifically, we consider UCP, the Universal Commerce Protocol, a recent Google-led effort to standardize e-commerce interactions for AI agents. Our exercise is in two parts. One, we model the part of UCP dealing with checkouts as a declarative Langshaw protocol and implement agents using Peach, a programming model for Langshaw. This part of the exercise brings out the advantages of formal, declarative specifications. Two, we show that Peach agents can interoperate with UCP agents implemented by Google, thereby establishing the fidelity of our approach with respect to UCP. Such interoperation enables the incremental introduction of declarative protocols and agents into a conventional setting, indicating a pathway by which EMAS ideas could influence practice without demanding a wholesale update.

Artificial Intelligence (cs.AI)

arXiv:2606.05043 [cs.AI]

(or arXiv:2606.05043v1 [cs.AI] for this version)

https://doi.org/10.48550/arXiv.2606.05043 arXiv-issued DOI via DataCite (pending registration)

Full text under the publisher's open licence · 173 words

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