How do I fix the title, this should be "What changes would you make to Codsworth and other bots?"
Why not put ducted fans or eye-bot flight tech on a Handy, great to be able to salvage such tech so maybe you could attach extra arms below where the thruster is now. Maybe elongate it so it can carry more without increasing its girth so it can still fit through doorways, maybe giving it front and back packs and/or the ability to carry cargo slung below from a pole or beam that can be steered by the Handy's gripper so it isn't banging into stuff, like doorways.
What are your opinions of modifications for a Handy you would like to be able to make through DLC or mods if you cannot make them in the coming game?
I have read that Handy's repair themselves and each other and help refuel each other. http://fallout.wikia.com/wiki/Mister_Handy_%28Fallout%29 They would probably upgrade each other and share info. They were designed to do an array of home repairs, be handyman, house keeper, nursemaid, and butler, tend pets when the family is away at work, school, etc., all this would probably take an Artificial Intelligence that learns.
Networking AIs could learn a lot, and not forget. They could probably hack terminals and data bases with ease, loot data and milk people for information with seasoned efficiency.
Though I would like to use them as pack bots capable of helping me loot, salvage, carry (I've read on the fallout wiki that they can carry 200 pounds), protect or hide my property while I and any other companions go ahead to clear out dangers and find stuff to salvage or loot.
I would like to loot and repair damaged or abandoned bots not yet repaired and have Codsworth lead them, but the others are not companions but the cyber equivalent of Brahmin, so I can have other companions, and maybe swap out Codsworth, so I can have Dogmeat and another companion.
Does anyone know how many companions you get to take on a mission?
Such bots would probably be much better than magic pockets in which you can carry rifles, heavy weapons, supplies, armor and power armor etc. up to your weight limit.
They would be a caravan or a mobile field base to return to for resupply, repairs, healing, to change out gear and tools.