harishkotra/the-gauntlet: A browser-based interactive demo that walks through the full lifecycle of a production multi-agent system built on MCP. Every pattern and anti-pattern is shown, not described. (opens in new tab)

TL;DR — The Gauntlet is an open-source Next.js app that connects 7 MCP servers through a LangChain multi-agent pipeline, then lets you toggle 8 failure modes live during execution. Built for conference demos. Watch agents break, fix, and break again — all in real time. The Problem If you've built anything with MCP (Model Context Protocol), you know the pattern: connect a few servers, wire up an agent, and watch it call tools. It works great until it doesn't. The failures that hit production M...