The Nexus Framework intentionally uses a fairly light skill structure. There are only twelve skills, each one very broad in scope. However, a character will typically be able to focus on a specific skill by selecting Skill Traits.

The skills are each tied to one attribute, and add that attribute's modifier to their own when using that skill.

Each skill in the game has an associated training value, which represents a character’s competence with that skill. Skills can be either trained or untrained:

If a skill is untrained, the character has no formal ability in it, and its value is +0. The character can still attempt the skill, but they rely entirely on the governing attribute and any situational modifiers.

When a character first becomes trained in a skill, that skill receives a value of +2, reflecting basic proficiency.

Trained skills improve over time. Upon reaching levels 2, 8, and 13, any skill a character has trained will gain an additional +1 bonus to its value. Further specialization is possible: certain traits allow characters to gain bonuses to skills within specific fields, representing focused study, practice, or innate talent.