I put the same things in all my bike bags with small changes for specific parts and needs. Bags all get (2) tubes (as appropriate for those tires), patch kit, (2) tire irons, the needed Allen wrenches. Fix gears get a wrench for the rear hub. (Front is QR.) That wrench may be a peanut butter wrench, 6" Crescent or Pedros Trixie. If I have doubts about the wheels, a spoke wrench. Every bike gets a real frame pump because I like riding on the proper pressure and over 100 strokes gets old.
30 miles home is 30 miles home. Bike weight means little if it isn't ridable.