Make sure you do it or risk your game otherwise. Once on the DAITools Suite Loader page make sure to read all of the description for information on what the mod does (Like you should do for all downloads, not just this one). The following picture is of the programs page. Just make sure you know what you’re doing and things should be fine.
I believe the tool is safe to run and will not harm your computer if used properly. If you’re concerned about fan-made programs (which is what the manager is), do not worry too much. Keep in mind that the page I just sent you to isn’t the mod manager itself but a program used to manually install the manager and automatically update it when the need should arise. A Somewhat Comprehensive Guide on How to Install the Mod Manager for Dragon Age Inquisition.
