Methods and systems are provided for turning on and off features at run time. The method includes providing a unique enabling predicate (e.g., an “if enabled” statement) for one or more executable features (blocks of code), configuring a permissions library, and caching the configured permissions library. The method further includes interrogating the cache with the first “if enabled” predicate, executing the block of code (feature) if the cache yields “true” for the requesting user, and not executing the code block if the cache yields “false” for the requesting user.