Researchers have introduced SkillNet, an open infrastructure for creating, evaluating, and organizing AI skills at scale. The system structures skills within a unified ontology that supports creating skills from heterogeneous sources, establishing rich relational connections, and performing multi-dimensional evaluation. Experiments show improved performance across multiple backbone models. --- Why it matters: This matters to engineers because SkillNet provides a robust foundation for agents to move from transient experience to durable mastery, addressing the challenge of skill accumulation and transfer in AI. Source: https://arxiv.org/abs/2603.04448