Buy a worm style puncture kit, should come in a bag big enough to chuck a few Allen/torx keys in plus a couple of spanner’s for common nuts and an adjustable wrench for the rest. Add some tape and cable ties to the mix with a small Swiss army knife or leatherman style multitool.
Anyone got a recommendation for a neat little tool kit to go under the seat, with a puncture repair kit etc? The original kwak one is long gone