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Retrofit, don’t rebuild: Agentic overlays for transforming legacy enterprise services

aws.amazon.com·Jun 25, 2026

The content outlines the use of cookies on a website, explaining the types of cookies (essential, performance, functional, and advertising) and how users can customize their preferences. Additionally, it discusses the implementation of "agentic overlays" to transform traditional REST-based services into systems capable of agent-to-agent (A2A) communication without rewriting existing code, thereby facilitating the integration of AI capabilities into legacy systems.

The key insight for you is the concept of "agentic overlays" as a strategic approach to transform REST-based enterprise systems into multi-agent systems capable of Agent-to-Agent (A2A) communication without overhauling existing infrastructures. By implementing these overlays, enterprises can leverage their current REST services in agentic communication, which facilitates the adoption of agentic AI and multi-agent systems while minimizing operational complexity and costs associated with maintaining parallel systems. This could be a significant enabler for digital transformation efforts focused on AI-driven workflow automation and enterprise architecture expansion.

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