Jensen Huang has called AI agents the "digital workforce" - and he is not the only tech CEO who thinks agents represent the next significant breakthrough for AI. Satya Nadella believes agents will fundamentally transform how businesses operate. These agents can interact with external tools and APIs, dramatically expanding their practical applications. However, they are far from perfect, and evaluating their performance in this domain has been challenging due to the complexity of potential interactions. Our Agent Leaderboard evaluates agent performance using Galileo's tool selection quality metric to clearly understand how different LLMs handle tool-based interactions across various dimensions.