Recent advances in agentic artificial intelligence have been driven primarily by scale: larger models, increased data, and expanding computational resources. However, rising energy costs, inference latency, and hardware constraints increasingly challenge this trajectory. This paper argues that intelligence—biological or artificial—does not primarily scale through raw computational expansion, but through the management of exchange under constraint. Drawing on cognitive science, systems theory, and prior work on exchange-based models of intelligence, the paper proposes a theoretical framework in which agentic intelligence scales through context management, proceduralization, and the assembly of reusable units of exchange. Unlike approaches that focus solely on model compression or hardware efficiency, the framework advanced here treats structural organization and resource allocation as first-order architectural concerns. Rather than advocating biological replication, the paper develops a structural analogy grounded in energy discipline and system organization. The resulting framework yields concrete design implications for agentic AI and generates testable hypotheses regarding efficiency, robustness, and scalability.