Build a Multi-Agent System for Expert Content with Google ADK, MCP and Cloud Run - Part 1

My team’s mission is to accelerate the developer journey from writing code to running secure AI workloads on Google Cloud. To help developers succeed, we focus on identifying their most pressing questions and building demos that provide straightforward, easy-to-implement solutions. Recently, I was struck with inspiration when the new Developer Knowledge MCP server was released. It led me to build Dev Signal —a multi-agent system designed with Google Agent Development Kit (ADK) —to identify technical questions from Reddit, research them using official documentation, and draft detailed technical blogs. Dev Signa l also provides custom visuals using Nano Banana Pro. I even integrated a long-term memory layer so the agent remembers my specific preferences and blogging style. By connecting my coding assistant, Gemini CLI , to the developer knowledge MCP server, I built and deployed this entire system to Google Cloud Run in just two days. Whether you want to learn how to architect a complex