I Measured 27,257 MCP Connections. The p90 Session Waits 35s.

In July I wrote a 56-line shell script called mcp-optional whose entire job was to remove two MCP servers from my config. Not fix them. Remove them. Both were stdio servers, so each one spawns its own Node process per session. With around 13 Claude Code sessions open on a 16GB M4, that was roughly 1.4GB of duplicated RAM, which meant swap thrash,...