OpenEnv in Practice: Evaluating Tool-Using Agents in Real-World Environments
Feb 20, 2026
Summary
This post details the practical evaluation of tool-using AI agents in real-world environments using the Calendar Environment Server. It introduces the concept of a 'Calendar Environment Server' which acts as a simulated environment for agents to interact with external tools and APIs, specifically focusing on calendar management tasks. The post discusses the challenges and methodologies for evaluating agent performance in such interactive settings, including metrics for task completion, tool usage correctness, and overall agent effectiveness. It highlights the importance of robust evaluation frameworks for complex agentic systems.