Just to clarify, I didn’t actually merge the scripts (not enough scripting knowledge), but rather I added a second “Execute Script” trigger in the same smart rule.
It’s the “exclude from wiki linking” script from this thread, which I modified to exclude from tagging (embedded script 1) and from classification (embedded script 2).
The scripts do produce the intended effects and have always worked flawlessly when each had its own smart rule. After combining them, they did seem to work just as well as before.