ENGINEERING (Intelligence):

There character is knowledgeable of stresses, building materials, physics, and architecture. He may use his skill to build buildings, war machines, or ships.

Novice: The character's buildings are crude but serviceable. They need frequent repair. His devices are one-shot wonders, but if he's careful they won't hurt anyone they're not supposed to.

Proficient: The character's buildings are solid, if nothing special. They need reasonably regular repairs but are otherwise fine. His devices work a few times before the stresses involved cause them to permanently malfunction. He is able to build boats that do not sink.

Advanced: The character's buildings now use complex structures such as arches and buttresses and a mixture of materials. With care, the building could last generations. His ships do not leak and his devices work fairly reliably.

Expert: The character can build castles that withstand seiges, using metals and stone and structures most have never heard of. Only actively attempting to damage the building, or ignoring it for decades or centuries, will cause harm to the building. It is built to last. His devices are paragons of precision and his ships of a sleek, modern design that is highly sought after.