Everyone Is Building AI Agents After Google Cloud NEXT ‘26 (Here’s Why Most of Them Will Fail)

This is a submission for the Google Cloud NEXT Writing Challenge Everyone Is Building AI Agents After Google Cloud NEXT ‘26 — Here’s Why Most of Them Will Fail At Google Cloud NEXT ‘26, one message was impossible to miss: We are entering the era of AI agents. With announcements around agent-to-agent (A2A) communication, the Agent Development Kit (ADK), and deeper orchestration through Vertex AI, Google made it clear: The future isn’t just AI-assisted software — it’s autonomous systems. And naturally, developers are rushing to build them. But here’s the uncomfortable truth: Most of these agent-based systems will fail the moment they leave the demo environment. Not because Google’s tools are weak. But because we’re not yet thinking like engineers of autonomous systems. The Illusion: “If It Works Once, It Works” Agent demos look impressive: An agent plans tasks Calls tools via orchestration layers Collaborates with other agents (A2A) P