WhatCable

WhatCable is a Ruby-based Action Cable debugging and inspection tool designed to simplify troubleshooting for WebSocket connections in Ruby on Rails applications. The project allows developers to inspect Action Cable channels, subscriptions, broadcasts, and connection activity in real time through an accessible diagnostic interface. 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.