Will crawfish overcook in jambalaya?

They are already cooked, so I add them when the jambalaya is done and I just mix them in to disperse them in the pot evenly.

I do the same thing with my chicken when I make jambalaya. I'll pull the chicken out and remove the meat from the bones and pull it apart in bit size pieces and add that when the rice is done. If added sooner and stirred a lot, the chicken breaks up into shreds most of the time.

I’ve never tried it but I’d put crawfish in when I bleed
the water down and turn the rice

Add them with your rice.

People here are always mentioning overcooked seafood this and that. I grew up on dishes with shrimp and crawfish cooked for an hour or better. They will be fine, I promise. Its not like crawfish get tough if you cook them too long.

Crawfish Don’t get rubbery so much like shrimp do, so you have more room for error. I don’t recommend a seafood jambalaya, but if I were to do it, I’d use a crawfish or seafood stock to cook the rice and veggies and then add the tails at the end when I cut the heat and the rice is done.