competency (npm): The ability to do something successfully or efficiently.
Keywords: right|accurate|true|veracious|exact|precise|unerring|faithful|strict|faultless|flawless|errorless|error-free|perfect|word-perfect|scrupulous|meticulous|on the right track|along the right lines|OK|on the mark|on the beam|on the nail|on the button|spot on|bang on|on the money