Unfortunately for her, they really are just testing the limits of the communication pendants. Or perhaps fortunately, because she hasn't set up any kind of speech-to-text system, and she suspects she will be very quickly overwhelmed if there's too much talking at once. This was, probably, a good test for her system as well. There's still time to set things up before anyone goes saying anything important on these things of hers.
She builds her testing chamber with dual purposes in mind; first is the obvious, and second is a place to fit her planned sensory accommodation. So far her architecture has been tall and delicate, but the room at the bottom of the set of stairs leading down and away from the rest of the dungeon is sturdy and squat. It does not break into being a sad box, because she has standards, but it's definitely not the striking gothic architecture from before. Just a very sturdy domed and square room, with visible and only mildly decorative support columns. This is so that people can try to break things inside without causing too much mayhem, but also so that it can support a second, secret room above. That'll be where she has her speech-to-text system, once she figures out how to pull it off.
Before she works on it properly, though, she has some general dungeon chores to take care of. Kose gets her spare ring of sustenance (this being what it clearly is) and the planter in her room gets a little sun lamp that is very pointedly enchanted to give off sunlight, thank you. The next set of communication pendants, already made and untouched by the last set of adventurers, get the titanium in them swapped for the titanium-platinum alloy that worked so well for holding the magic of the glasses. She has a vague hope that this will keep the magic from fraying for longer, but the fundamental structure of the concepts is exactly the same. It's just hopefully on a material better suited to hold it for longer periods of time. While she's doing chores, she neatens up the ring puzzle, adding color and making it lighter and easier to turn. The strength element is kind of silly, okay, she wants little old ladies to be able to wander in here and get something to make their wells safe all on their own, thank you, even if it means extracting less dungeon bullshit per capita.
From there, she adds a couple of elements to her growing library, from elements she thought of that might perhaps become relevant to her interests. Bismuth, tungsten, lithium, and antimony are the ones she can definitely recall being real actual elements that really exist, and from which she can probably actually build stuff out of. She could make more dangerous elements like sulfur, magnesium, phosphorus and mercury, but she'll pass, actually. No war crimes, thank you. She might make lead at some point, it's genuinely a useful material, but doesn't waste budget on it when she knows she'll flinch away from ever using it for fear of giving people lead poisoning. From there she then has herself an extended experimentation session trying to make things she remembers that may or may not actually exist. This gets her iridium and cobalt and palladium, but not much else. Really, that was better than she was expecting, she's glad she had this idea. Pity that she cannot actually bring all of the various Minecraft metals and alloys to reality, she could have done some great things with enderium, but yes, yes, fair enough. Following the almighty periodic table of elements, and all that.
With this all done, she then gets to work on that speech-to-text enchantment. It's going to be a bit of a project, but if she can stupidly program a puzzle to solve itself, she thinks she can absolutely pull off impressing the concept of written language. Maybe even before someone says anything notable on the communication channels! Wouldn't that be nice.