The MCP (Model Context Protocol) ecosystem has exploded. There are now hundreds of servers covering everything from Notion to Neo4j. Most of them you do not need. Installing too many slows responses, adds debugging overhead, and inflates your context window with tool definitions that never get used. This guide applies a simple filter: only install a server if it saves your team more than five minutes per day. For a DevOps or platform engineering team, that bar eliminates most of the ecosystem and keeps a short, high-value list.