Yes, all skills are capped based on specific stats/level. Sorry, this is missing from the UI right now, I'll see if we can get it added for the next update. In the mean time, here's the info on what skills are capped on what:
Hand Attack, Mining, and Manufacturing: capped at 2x Strength (so need 50 STR for 100%)
Short sword, long sword, fencing, axe, bow, shield, and fishing: capped at 2x Dexterity (need 50 DEX for 100%)
Magic and staff attack: capped at 2x Magic (need 50 MAG for 100%)
Magic resistance: capped at 2x level (need to be lvl 50 for 100%)
Pretend corpse and alchemy: capped at 2x Intelligence (need 50 INT for 100%)
Poison resistance: capped at 2x Vitality (need 50 VIT for 100%)
Sorry for the confusion, we'll get it added!