Understanding MCP by Building One: A Beginner's Guide to Creating Your First AI Tool

This article is a step-by-step tutorial on building a custom tool server for an AI assistant. You learn the core concepts of AI tool integration by creating a simple "Story Manager" in Python. The guide covers separating business logic from communication protocols and demonstrates implementing two connection methods (STDIO for local apps and HTTP/SSE for web services), enabling an AI to call your Python code directly to list and read stories.