Why MCP Isn't a Magic AI Upgrade: Deep Dive into Its Architecture, Host Role, and Real Costs
This article debunks common misconceptions about the Model Context Protocol (MCP), explains its client‑host‑server (CHS) architecture, shows how the Host drives AI decisions while Server and Client remain model‑agnostic, compares MCP with Function Calling, analyzes SDK source code, evaluates practical trade‑offs, and outlines the true engineering value and costs of using MCP in AI applications.
