Skilled

Skilled is a trait which appears in Fallout, Fallout 2, Fallout: New Vegas add-on Old World Blues, Fallout Tactics, Van Buren, J.E. Sawyer's Fallout RPG and Lionheart.

Fallout
Since you spent more time improving your skills than a normal person, you gain more skill points. The tradeoff is that you do not gain as many extra abilities. You will gain a perk every 4 levels but start with an additional 10% in all skills.

Old World Blues
"You're skilled, but not experienced. You gain +5 points to every skill, but you suffer -10% from experience gained from now on."

- Fallout:New Vegas description

Effect
You gain +5% to all skills but you suffer -10% whenever you earn experience points.

J.E. Sawyer's Fallout RPG
You gain an additional Tag skill. However, you gain -1 skill points every level because you often spread yourself too thin.