what i actually learned coordinating 15 MCP...

everyone talks about MCP servers like they're the hard part. they're not. writing a single MCP server is maybe 200 lines of code. the hard part is what happens when you have 15 of them running simultaneously and they all need to cooperate. i've been building a multi-agent system for the past few months. 9 services, 15 MCP servers, 60+ Cloudflare Workers. here's what i actually learned — most of it the hard way. lesson 1: the orchestration layer is the real product anyone can write an MCP server.