MCP is one of the most talked-about ideas in AI right now.

If you read enough posts, it starts to sound like MCP is the missing piece that makes agents smarter, more capable, and production-ready.

It is not.

MCP does not make your agent smarter. It does not fix bad prompts. It does not give you memory, validation, or reliability.

What MCP actually does is much simpler, and much more important.