The transformative remedial action scheme tool (TRAST) can be applied to improve and validate the power system remedial action scheme (RAS), and further improve the performance of power system operation and control. This tool provides a full suite of advanced functionalities, which are given as follows: Advanced statistical data analysis; OPF-based automated power flow case generation; Customized dynamic simulation in HPC/cloud platform; Machine learning based RAS coefficient prediction; A reliable RAS validation strategy in multiple commercial platforms.