This episode teaches executives how to capture and manage the hidden cost of deploying agentic systems: the decisions, experiments and optionality you forgo when attention and capital flow to particular agents. In ten minutes you build a decision-grade 'Opportunity Cost Ledger' — a lightweight template that records marginal value, foregone optionality, and stop/go thresholds for agentic tasks. The briefing delivers one core insight (opportunity cost is the control variable for allocation), three supporting points (how to measure marginal return per unit of attention, when to favor optionality over short-term efficiency, and operational rules that prevent lock-in), and a single action step you can implement in your next weekly review. Practical examples cover product ops, recruiting automation, and customer workflows. Outcome: clearer prioritization, fewer wasted experiments, and faster, safer scaling decisions for agentic initiatives.