My first script at the toolserver was for WP:GEO, a project around the geocoordinates in Wikipedia. I scan the XML-Dump of many languages for geocoordinates and create a KML for Google Earth.
With the experiences of my first project we (User Kolossos and I) create a new project "Templatetiger". My script extract all data from the templates in Wikipedia.
In the german Wikipedia we have over 360000 Personendata (PD) in articles. I wrote a script to export and check this data. With this work we could fix many personendata.
This project will help to clean the syntax of Wikipedia and to find some other errors.