WhatCable
macOS menu bar app that tells you, in plain English
...It is particularly useful for debugging live features such as chats, notifications, collaborative tools, and streaming updates built with Rails. The tool focuses on improving visibility into Action Cable internals, helping developers identify subscription issues, authorization problems, or unexpected broadcast behavior. Its lightweight integration and developer-oriented workflow make it practical for both development and debugging environments. Overall, whatcable acts as an observability utility for Rails real-time communication systems.