What would be the best build for a Brotherhood Scribe ?

Skills: Energy weapons, science and repair, medicine.

SPECIAL: High intelligence and agility for sure, change the others as you wish

Traits: Fast shooter and Disciplined trigger if you want to focus more on combat. Good natured for passive skills, four eyes for a more "nerdy" character

Weapons: I'd say either plasma/laser pistol or rifle (with emphasis on pistol)

There are many perks to choose from: Chemist, Computer Whiz, Robotics Expert, Laser Commander, Plasma Spaz, Meltdown, Jury rigging, comprehension, retention, educated, Run 'n' gun, living anatomy, Nerd Fury!, Math wrath, concentrated fire, and there is also a skill for light armor. Some of them are just for flavour, but aren't really useful (like Robotics Expert and computer Whiz). Overall I'd go for an intelligence+agility build: maximize AP through Perks (concentrated fire, math wrath, nerves of steel) and Energy weapons as a skill.