ShadowChecker

ShadowChecker is a tool that helps you find categories that are "shadowed", which means that they can never be activated by user input (or a srai). Most of the time, it's a result of too general use of the _ wildcard. Sometimes, a category can be unreachable because some input substitution will change the input that would normally match this category. Sraiing will work (at least in P) - this can be used to your advantage, to "protect" a category from direct activation.

Visit / More...