The instructions are a really tiny fraction of the mechanism; writing instructions, even really really long ones, doesn't take up much space compared to the rest of what's going on here.

He also needs matter to actually be reassembled, which he might as well try to get from the same place if it's possible to salvage both, but he'll try for just the instructions from this worm. The whole setup is fairly 'translucent' to mage-sight, he can observe all the parts folded up inside; what happens if he forms a tight mage-barrier-like shield around just the instructions part, at first permitting the links to other components to route through the shield, then, once it's sturdy enough to hold up against the Void at least briefly, severing all those links and sealing just the instructions and some trailing ends inside his shield? 

This breaks this worm's morph setup, unsurprisingly. Bits that he's not holding onto crumble.

All right he's going to very carefully hold onto this while he finds his nothlit rabbit, it's somewhere around here. He stashed its cage right next to the worms in normal space, but the Void behaves oddly and so he has to go a ways to find it. 

...It's really hard to tell where it would go, because the rabbit's former morph pocket is so mangled. He knows approximately where the unhooked connections need to go, though, one needs to talk to his spell once that's re-cast from the computer-controlled artificial channel, another needs to route to the template of the rabbit's original body, this one needs access to matter...

For now he can sort of glom it on and try to merge it into the same pocket as the rest, while still keeping the shield around it intact so it doesn't get smushed or something. 

The pocket resists things being added to it, but eventually he can kind of smush it in.

No wonder; the pocket is less a mage-barrier and more a literal planar boundary, or microcosm of one, and he's trying to physically ram something through it. He wonders if it would go better to use something like a Gate technique across it - which will risk sucking everything inside out into the Void, but if he's very careful he can avoid that... 

All right, instructions in. Leareth withdraws his mind from the Void and back to the material plane for a moment, to check that he hasn't just scrambled the rabbit's brain or something; is it still showing normal rabbit behaviour? 

It seems so far unaffected.

Leareth rests briefly and then heads back to the Void and tries to find the part in the mangled existing stuff in there that corresponds to the usual link between the body-template and the morph-instructions. 

It's super mangled!

Does Cayaldwin have any advice? He's more familiar with morph design. 

He can figure out five things of which it must be one?

That's a start! Probably guessing the wrong one results in something getting very screwed up, but they'll see what happens once he gets replacement matter and attaches the spell and then tries to trigger a demorph.

...Leareth really hopes the mangling happens similarly between different cases, because he can't afford to use guesswork on the Andalite nothlit. 

<Can Foresight be used for things like this?>

:- Maybe short-range? If it were trained specifically on many past cases of doing this: Leareth has it as part of his composite-morph, but it doesn't seem to do much while he's on Earth. One time he got a five-seconds-ahead very brief vision before one of his mages spilled coffee on themselves, which was mostly just disorienting. 

<Huh, it needs training data?>

:Short-range Foresight is usually not under conscious control and only provides warnings of personal danger, and not reliably even. The only scholarship I know of on training the Gift to be more deliberately usable, did involve repeating the same scenario hundreds of times. I am not sure why. Maybe the underlying Foresight mechanism always sees everything, but Gifted humans cannot perceive all possible futures all the time without going mad, and so the Gift only lets through what is expected to be salient?: 

<That is interesting.> Tail-swish. <I wonder if I could alter the failsafe mechanism to make it fail more cleanly and retrievably.>

:That could definitely make this less fraught, although it will not help the existing nothlits. Anyway, I will go take apart another worm's setup to get the reservoir of matter, and this time I am going to try a weird Gate to add it to the pocket instead of just shoving it: 

<Good luck.>

Getting the matter is more straightforward than the instructions, it's less fragile, he just needs to sever a couple of connections-to-other-components in reattachable ways. He carefully transports it over, and holds it steady while very cautiously attempting his Void-to-pocket Gate - or, well, matter-to-pocket, there's really nothing to anchor a Gate on other than the blob of stuff he's hauling around inside a bubble of mage-energies. 

This seems to go slightly better than trying to shove it in.

And now he needs to cast the spell, powered from the generator this time, and appropriately connect up the pieces of it that go looking for the available matter and for the demorph template. 

He's going to be really surprised if this works on the first attempt, but - what happens if he attempts to trigger a demorph? (It'll need lots more power, which the generator and computer-control setup should be able to accommodate.) 

It tries to do - something - and then destabilizes and stops, with a big energy backlash.

Well. Not unexpected. Anything left or does he need to start over with another rabbit? 

There is not much left and it's bleeding off into the Void.