The standard gaming skill system is a set of limiters defining available actions. For the purposes of my current project, I find this lacking.
All skills are rated on a 1-10 scale. These skills add a number dice rolled to the dice pool for appropriate checks. Skills are defined by the player, the more focused the skill the better the trait options.
Ex. Firearms, Small Arms, Hand Guns, Revolvers
Engineering, Electrical Engineering, Computer Construction
Every 3 ranks in a skill the player may select a trait. These traits are short phrases that define a special ability or aptitude relating to the skill.
Ex. Firearms - Immaculate Gun Care; Hand Guns - Always Has a Concealed Gun; Revolvers - I Drew First