The brutal truth about choosing between single and multi-agent architectures for your AI project. Complete with battle scars, unofficial Microsoft insights, and the harsh reality that agents are just fancy microservices with commitment issues.

A recap of the most frequently asked questions about the Model Context Protocol (MCP) from my time as an expert at the MCP booth during Microsoft Build 2025. Covers what MCP is, how it works, authentication, differences from OpenAPI, agent-to-agent communication, and practical advice for developers.