1) Good set of allen keys from 2mm to 10mm, 2) Cassette tool, 3) Chain whip, 4) Chain tool & quick link pliers, 5) Bottom bracket tool, 6) Torx T25 key, 7) Brake bleed kit, 8.) Spoke key, 9) Pedal spanner (if you can't use an allen key), 10) not tools but a good selection of greases, lubes and oils, 11) If you're feeling fancy, a bearing removal / press kit.
1) Good set of allen keys from 2mm to 10mm, 2) Cassette tool, 3) Chain whip, 4) Chain tool & quick link pliers, 5) Bottom bracket tool, 6) Torx T25 key, 7) Brake bleed kit, 8.) Spoke key, 9) Pedal spanner (if you can't use an allen key), 10) not tools but a good selection of greases, lubes and oils, 11) If you're feeling fancy, a bearing removal / press kit.
I’d add a derailleur hanger alignment tool, set of cable cutters, and a torque wrench.