There's a lot to worry about, of course - the andalites could declare war any day and are probably up to something already - but this mission is for science and diplomacy. Ideally. As long as that seems like a safe set of priorities.
They find an inhabited planet. The oceans are made of water; the animals are carbon-based and use DNA and keep their brains in single locations. At least one species is definitely intelligent and probably infestable. The atmosphere is probably safe for gedds. There are no radio transmissions to intercept.
Which is odd, because there are robots. Those are almost definitely robots and not just weird-looking animals.
There's no sign that these people are spacefaring and maybe that doesn't have to precede z-space-based communications, or maybe they control the robots exclusively by getting up close and pressing buttons, but whatever is going on with their technology is definitely new and unexpected. They puzzle over that one while they confirm the risk of xenonotic infection is acceptably low.
Then they find a nice out-of-the-way place where they can land a shuttle, cloaked, and wait for one of those bipeds to come nearby.