The towing rope would be a 2 x 1 part made from steel and copper coils that would mainly me used for towing shipwrecks and maybe small asteroids, but it could also be used in combat.
It would shoot a short range rope straight from the thinner side that would attach to a tile it hits, then the max length of the rope would stay the same, but could shrink and rotate. The impact of the rope would do minimal damage. It would have one battery slot, and would consume it when fired (it would continue to be attached even without a battery), but it wouldn't need crew to operate it. The rope would be controlled by a button from the ship controls like mines by default, but it could also be set to fire when in range of an enemy, so that ai can use it.
To not make it overpowered and way stronger than tbs in combat, it would have one major drawback. If any projectile passes through the rope or hits the towing rope part itself, the towing rope part would lose 1k hp (assuming the max hp would be 2k), the rope would get broken and it won't be able to fire until it's repaired.