During development of security trimmers I have done lot of experimenting. It is a bit frustrating teach time o go to SPS admin site to delete the rule and to create it over and over again and then to use stsadm to install the trimmer etc. To make my life more productive I implemented the extension for stsadm tool, which is able to:
1. Create the CralwRule and to install related security trimmer in one step,
2. Delete existing CrawlRule and related security trimmer,
3. To check whether some specific rule is assotiated with some security trimmer. This is an important option, because I noticed that installing of the trimmer by using of stsadm sometimes does not associate the trimmer properly with the rule. In such cases the trimmer will not be invoked and this could be and mostly IS an security issue.