Multi tool, 1 tube, tyre levers, puncture repair kit , small pair of pliers, phone.
First aid kit and Food if I take the Camelback.
Never bothered taking chain splitters or links out on a ride, never snapped a chain on a ride though…
When I go to the Lakes next year I’ll probably take maps, chain splitter, cables and pads on the rides as its a much longer distance to travel with a snapped chain etc whereas at Dalby and Gisburn your never huge distances from the car/accommodation.