Introduces Google's Open Agent 2 Agent (A2A) protocol, an initiative designed to standardise how diverse AI agents can communicate and collaborate within enterprise environments. The sources highlight the problem of isolated AI systems and position A2A as a solution, outlining its technical architecture based on web standards and detailing core concepts like Agent Cards, Tasks, and Messages. Furthermore, the material emphasises the potential benefits of A2A, such as enhanced interoperability, automation, and security, while also acknowledging implementation challenges and future development. The announcement of a broad partner ecosystem underscores the industry's interest in this approach to building more integrated and capable AI solutions.