got a picture of what you're talking about? walking along a ridge is not climbing. an airy summit could be debatable but i'm guessing not. It doesn't really count as climbing until you get to class 4.
"Class 1: Hiking
Class 2: Simple scrambling, with the possible occasional use of the hands
Class 3: Scrambling; a rope might be carried
Class 4: Simple climbing, often with exposure. A rope is often used. A fall on Class 4 rock could be fatal. Typically, natural protection can be easily found
Class 5: Where rock climbing begins in earnest. Climbing involves the use of a rope, belaying, and protection (natural or artificial) to protect the leader from a long fall. Fifth class is further defined by a decimal and letter system – in increasing and difficulty. The ratings from 5.10-5.15 are subdivided in a, b, c and d levels to more precisely define the difficulty (for example: 5.10a or 5.11d)"