SHOWROOMコメント入力補助 is a browser extension tool for the live streaming app SHOWROOM. It enhances the functionality of the comment input field, providing assistance to users.

The tool offers two main features. First, it allows users to copy predefined phrases specific to the current room they are in. By clicking on the tool's icon, a list of predefined phrases for the current room is displayed, and users can easily copy them to their clipboard or directly input them into the comment field.

The second feature is a character count check for the comment input field. If a comment exceeds 50 characters, the background of the input field turns red, alerting the user to the character limit.

Overall, SHOWROOMコメント入力補助 is a useful tool for users of the SHOWROOM live streaming app, providing convenience and assistance in managing comments during live streams.