Event caching is extremely useful and easy to use. ColdBox will act like a cache proxy between your events and the clients requesting the events, much like squid, nginx or HA Proxy. All you need to do is add several metadata arguments to the action methods and the framework will cache the output of the event in the template cache provider in CacheBox. In other words, the event executes and produces output that the framework then caches. Subsequent calls to the same event with the same incoming RC variables will not do any processing, but just output the content back to the user.