Abstract: Interest-holder engagement is an essential component of developing clinical practice guidelines （hereafter，“guidelines” ），and guideline developers should systematically engage diverse interest-holders groups． The RIGHT-MuSE checklist is designed to standardize the scientific，comprehensive，and transparent reporting of interest-holder engagement in guidelines． The checklist comprises 11 items that address the guiding documents underpinning engagement，modes of engagement，characteristics of interest-holders，evaluation of the engagement process，and the disclosure and management of engagement-related conflicts of interest and funding． This article explicates each RIGHT-MuSE item and provides illustrative examples to help guideline developers better understand and apply the checklist to scientifically report the full process of interest-holder engagement during guideline development，while also providing guideline users with a framework for assessing the rigor and transparency of that process．