I've finished the first iteration of my special pages implementation, which are like the special pages found in Mediawiki and I have explained in an earlier post. The code for special pages can be found at my GitHub here:
The implementation is far from complete; I just wanted to get something out there for critiquing. Currently, the implementation features the ability to add special pages under /special/ by creating Catalyst controllers under the MojoMojo::Extensions namespace. The example I wrote up is the Counter special page, which is just a basic counter. If you have interest in this feature or just some free time, feel free to clone my repo and evaluate my code.