OOC: Well, the tendrils are flexible, right?

So, you could knock them off course, or even send them back

That ought to get them from launching more.

But, with several hundred nukes (or was it around 200?) your bound to lose some ship or tendrils from the multiple impacts against the hulls. If they detonate prematurly, they could kcock eachother off, or simply result in the energy sweeping across your shields like a wave, supposing you have shields

But a nuke to the hull would be dangerous. But, that's the reason Black Sun hulls are naturally thick, due to Planet Crackers' variation of heavy-duty weaponry.

But, any bombs or missiles hitting Black Sun hulls may leave a hole, but it won't go all the way through said hull

But that's a good reason for thick hulls
But really, turning some around, and knocking the majority off or destroying them from a hit to the side would be how I would counteract with your tehnology

But they would think twice before launcing more as their own nukes pummel their planet (if you turned a few around

) So, it could also start a chain of events leading to another world war or civil war

And anti-nuke reactions

That would also destabilize the want of protection offered by the Koldir if they fail to protect the planet. Faith shattering, society-shattering... So easy if you just turn some nukes around, and make sure the Koldir do not keep the system.