I tried to make the plugin template automatically add the type/core tag if passed the core parameter. However, this did not appear to have the desired effect: if I removed type/core from the tags on a plugin page that used core=1 in the template (such as mdwn), the type/core tag disappeared, and the template did not supply it. --JoshTriplett

Problem was that setting a tag cleared all earlier tags. done, and I like the idea of the autotagging.. --Joey