Indigo indeed has it handled, though is on the defensive a little more due to the whole reason she's picking a fight with this thing. Injuries she's not so much worried about, she has medical supplies, but if her clothes get ripped, they can't be repaired with their current supplies. Not unless she wants to use medical sutures on clothing.

She uses the size difference to her advantage, quickly getting into spots that are difficult for the robot to see or reach, and while it wastes precious seconds turning to face her, she's free to wail away at it with her sword, probing for weak spots. Then once it's in a position to actually hurt her, she repeats the process and it starts all over again.

Still, considering how big and tough this thing is, fighting it this way might take a while. And Indigo isn't going to pull any 'high risk, high reward' maneuvers against it either; she's perfectly happy doing things the slower and safer way, thank you very much.