D3, an agentic analytics platform from Cube Cloud, tackles the challenge of providing unified access to insights by leveraging a robust semantic layer. This layer serves as a bridge between complex data structures and business insights, empowering both data consumers and stewards with augmented self-serve capabilities. By embedding metadata and standardizing business logic, D3's semantic layer provides a single source of truth for business metrics and dimensions, ensuring consistent definitions and reducing ambiguity. The platform introduces analytics agents that assist users in interacting with data using natural language, eliminating technical bottlenecks and driving insight velocity. With its key components, including agent spaces, rules, and certified queries, D3 is designed to provide a transformative opportunity for organizations to make sense of their increasing data complexity, governance hurdles, and the difficulty of providing unified access to insights.