Most agent tutorials stop at a stateless chatbot – a conversational loop that loses all memory as soon as the container restarts. Real-world enterprise processes rarely complete within a single API call. For example, HR onboarding stretches across two weeks. Invoice disputes remain unresolved for days as they await responses from vendors. Sales prospecting sequences span numerous touchpoints throughout a one-month period. These processes are largely consumed by „idle time“—extended periods during which an agent remains inactive, simply waiting for a human signature, shipping confirmation, or approval checkpoint. A stateless chatbot wouldn’t last long in that scenario. This tutorial demonstrates how to build a reliable New Hire Onboarding Coordinator Agent using the Agent Development Kit (ADK) that can run smoothly for weeks at a time. The agent sends a welcome packet, waits for days while the new hire completes paperwork, hands off IT setup to a dedicated sub-agent, pauses again until the hardware arrives, and then delivers a fully personalized first-day agenda – never dropping any context. In the process, you’ll discover the three key architectural shifts that distinguish real production agents from simple demo chatbots. Use structured, persistent memory schemas rather than dumping raw JSON into a vector database.
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