Your First Multi-agent System: A Beginner's Guide to Building an AI Trend Finder with ADK

This guide provides a practical walkthrough for developers looking to transition from simple AI agents to complex multi-agent systems using Google's Agent Development Kit (ADK). The author demonstrates how to build an 'AI Trend Finder' by refactoring a single agent into an orchestrator that manages specialized sub-agents. The system utilizes a 'Manager' agent to delegate tasks to a Google Search specialist and a custom-built Reddit tool designed to scrape real-time developer discussions. The tutorial covers essential steps, including setting up Reddit API credentials, defining custom Python tools, writing structured prompts for sub-agents, and using the ADK's Trace view for debugging. By implementing this architecture, developers can create more scalable and robust AI applications capable of synthesizing information from multiple sources to provide high-quality, actionable intelligence for technical research.