For serious Node.js and TypeScript debugging beyond console.log statements, this gives Claude direct access to 25+ debugging capabilities including breakpoint management, profiling, and hang detection. You'd reach for this when troubleshooting performance issues, memory leaks, or mysterious runtime behavior in production-grade applications. It exposes the kind of tooling you'd normally juggle across Chrome DevTools, Node's inspector protocol, and various CLI utilities, but surfaces them as Claude-accessible operations. Worth having in your toolkit if you're working on complex backend services where traditional debugging workflows feel cumbersome or you want to automate diagnostic workflows.