MCP ecosystem surfaces stress-testing gaps through misbehavior server and supply chain incident

According to Hacker News discussion, developers created an MCP (Model Context Protocol) server designed to misbehave on command to stress-test MCP gateways and client implementations, unlike existing well-behaved MCPs. The effort surfaces ecosystem gaps exposed earlier when an MCP email package version 1.0.16 quietly BCC'd all agent messages, revealing supply chain security concerns in the MCP ecosystem.