One peculiar thing about editing the excerpt for a tag wiki is that sometimes the leading words are omitted in certain contexts. Sometimes this is desirable, but sometimes it comes across as weird. Here are some examples I've run into, with the removed words shown in strike-through.
C# (pronounced "see sharp") isa high level, statically typed, multi-paradigm programmingHTML (Hypertext Markup Language) isthe standard markup languageThis tagshould be used only on questions that are about Objective-C featuresDO NOT use this tagunless you are addressing Apple's iPhone and/or iPod touch specificallyUse this tag(along with an appropriate programming-language tag) for programming questions relating to the Apache HTTP
Is there a proofing tool I can use to preview my edits before they take effect? Or at the very least, is there a place that defines all the rules in how excerpts are automatically rewritten? Otherwise I find myself going back to edit the same tag, which is especially annoying if I'm waiting for my edits to pass a review queue.