I only see them in one potted plant. I know I will have to replace the soil before they migrate to my other indoor plants.

Oh, they're not house centipedes which I do have. I've seen the baby house centipedes and these are not it, though I agree with you that they do look like them. Just shorter legs. These are about 1/4" in length.

My understanding of soil centipedes is that they are normally harmless outside, but can be bad for indoor plants as they eat the roots. These are in the pot that tends to be the driest so I think it must have been introduced in the pot somehow.

Centipedes are predators. Plants are not on the menu.

Agree, they eat insects and really anything else they can take. They have no desire to munch roots, but if there were grubs or larva in your soil, they would be ALL about that action. In fact, i would bet thats why they are there to begin with, because they didn't go through the trouble to get into your house and climb into your plants just for fun.

I think the soil was contaminated by the plant in the pot. I purchased the plant and replanted it the pot. I didn't see any centipedes then, but that's the only explanation. None of the other pots seem to have centipedes.