Stavros Tabrouski developed foundational Vertex AI integration features for the google/adk-go repository, focusing on backend architecture in Go. He implemented the Vertex AI Session Service, enabling session creation and chat session management to support scalable, stateful interactions. To facilitate flexible streaming workflows, he introduced a RunConfig struct, allowing dynamic configuration of session services within the Userloop example. His work emphasized modular service design and commit traceability, laying the groundwork for future feature expansion and improved development velocity. Over the month, Stavros demonstrated depth in API development, session management, and streaming architectures, establishing a robust base for ongoing backend enhancements.