Why an MCP Security Library Beats a Security Proxy

The Problem Nobody Talks About AI agents are getting powerful fast. With the Model Context Protocol (MCP), a single agent can read your files, call external APIs, execute shell commands, and query databases — all in one conversation. That power is exactly why security matters. But when you look at how most developers are trying to secure MCP today, there's a pattern worth questioning. The Proxy Approach (and Its Hidden Cost) Most MCP security tools today work as a proxy — a separate process that