Xolotl is the god of the evening star, monsters, deformities, twins, and is considered the dark twin of Quetzalcoatl.
I guessed Xolotl for Agness through her tracker, the elements in the environment of ep2, and her character design.
Xolotl is usually depicted with a humanoid figure and the head of a dog, particularly the xoloitzcuintli, the Mexican Hairless Dog.
These dogs were believed to be guides in the afterlife, and they’d help the dead get through one of the first stages of the journey through Mictlan, the Aztec underworld. Xolotl’s job is to guide the Sun through Mictlan every night. He also guided his brother Quetzalcoatl in the creation myth when the latter had to retrieve the bones of the previous generations of humans.
Agness gives Shrike a device to point him and Beebs to the Lythops’ location in ep2. The tracker is continuously barking, and it whines like a dog when Punti cuts it in half. It guides Shrike, as Huitzilopochtli, the Sun, through a dark cave, which in this episode represents the underworld.
There is this brief shot with Shrike and Beebs leaving the cave, panning up to the night sky.
And when it transitions them going back to Agness, we see sunlight again. Precisely in the evening, which is associated with Xolotl as the evening star. It felt worth mentioning.
Agness also has some similarities to another part of the creation myth. In the Florentine Codex right after Nanahuatzin and Tecciztecatl jump into the fire, we get another story with Xolotl, how he tried to escape the god Ehecatl from sacrificing him. This is copy-pasted from the English translation here (note that “the wind” is referring to Ehecatl)
“After both the sun and the moon had risen over the Earth, they remained still; they would not move from their places.
And once again the gods talked among themselves and said, “How can we live? The sun is not moving. Are we going to live among the common people? Let us all die and make it return to life through our death.”
And then the wind took charge of killing all the gods; and it killed them. And it is said that one of them, called Xolotl, refused to die and told the gods, “Oh, gods, may I not die!” And he wept so much that his eyes became swollen from so much crying. And when the one who was to kill him approached him, he took off running.
He hid in the maize fields; and he turned around and turned into the root of the maize stalk that has two stems, which the farmers call “xolotl”. And he was seen and discovered among the roots of the maize stalks.
Once again, he took off running, hid himself among the maguey plants, and turned into the maguey plant that has two bodies, called “mexolotl”.
Once again, he was discovered, took off running, and got in the water; and he became the fish called “axolotl”. And it was there that they caught him and killed him”
As we can see from the myth above, Xolotl transforms into various things to hide from Ehecatl. One of them is a double maguey plant. The twin agave (or maguey) plant looks really similar to the floating specks in the planet of ep2.
He also shapeshifts into an axolotl, and Agness’ lure head has these appendages that resemble simplified axolotl gills!
Since Xolotl is known for shapeshifting, Agness could also have disguises as one of her recurring themes, being an anglerfish, and being able to use her lure as a second face. She even disguised herself as a L.A.W. scientist. Being an anglerfish could also play into Xolotl being the god of monsters!