This blog post discusses tools to help diagnose issues in WebRTC development. It covers two main tools: WebRTC Internals and the WebSocket inspector. WebRTC Internals is a tool within Chrome that shows details of WebRTC connections, while the WebSocket inspector helps developers investigate initial negotiation for establishing the WebRTC session. The post provides step-by-step instructions on how to use these tools and highlights their usefulness in debugging quality issues and understanding how sessions are established.