Dynamic Loot Filter, Reloading Local Filter File Automatable?

I've been considering writing a script that will allow for "dynamic" loot filters, i.e. modifying the filter file on the fly, while in game. For example, you might be looking for a R-R-B linked wand for your build while leveling, so you want to highlight wands with those links. However, after you find such a wand, you may never need to find a similar item again, so you'd then like to turn the highlighting off. Another example would be if you're low on Wisdom Scrolls, you may want to unhide them temporarily until you pick up enough.

The above is fairly simple to do—just programmatically modify a local .filter file as needed and reload it in the game client. However, my concern is whether fully automating the filter reload breaks ToU, as it may be a server action. Since settings are mostly clientside (aside from changing lockstep/predictive or loading a remote filter), I'd expect that reloading a local filter would not be an issue. That said, I wanted to check here first, just in case someone knows whether such automation is permissible.