Hey DEV community, CallmeMiho here. In the rush to wire every legacy microservice to a ChatGPT plugin or an autonomous LLM, the basics—documentation, centralized auth, and infrastructure-level security—have been treated as "legacy friction." Let's talk about the massive architectural holes you are accidentally punching in your backend. Welcome to 2026, where the "Shadow API Crisis" is the direct result of feature-factory negligence. We are drowning in undocumented endpoints created solely to feed high-density vector data to AI agents with "minimal latency." Bypassing the API Gateway to give an AI agent a "cleaner" path to the backend isn’t optimizing—it’s building a side door that is wide open to anyone with a basic scanner. Defining the Shadow API A Shadow API emerges when developers spin up unmonitored endpoints to serve specific AI agents, intentionally bypassing the central API Gateway. These "ghost" endpoints create a massive security vacuum.…