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You have a working MCP server. Congratulations. Now forget everything you learned, because production breaks different things than development does. #
There’s a predictable pattern in how teams deploy MCP servers to production.
Step 1: They build it locally. Works great. Claude Desktop connects, runs queries, perfect.
Step 2: They move it to a staging server. Still works.
Step 3: They push to production and everything explodes in ways that don’t exist in development.
The failures happen for three reasons: security (they forgot to validate inputs), **scaling **(they didn’t think about concurrent requests), and operational reality (they ignored the things that actually break in production).
I’ve seen this play out enough times now to know the exact places teams mess up. Let me walk you through what breaks, why it breaks, and how to prevent it.
The Security Problem: Input Validation Is Not Optional #
Your 30-minute MCP server prototype has a critical vulnerability. You might not realize it yet, but the first person to…