This blog post provides an in-depth tutorial on using command-line tools to understand the Model Context Protocol (MCP) at a low level. The author walks through the setup of a minimal MCP server, various command interactions (such as discovering capabilities, listing tools, resources, and handling authentication), and offers insights into the inner workings of MCP through practical examples using coding practices. There is a significant emphasis on learning how these components interact which can greatly benefit developers looking to deepen their technical understanding of MCP.