AI Agent Evaluation: Trajectories, Tool Errors, Success
In the LangChain State of AI Agents survey of 1,340 practitioners, quality beat cost and safety as the number one obstacle to shipping agents. AI agent evaluation is how you find out whether the agent you built in posts 225 and 234 actually finishes tasks or just looks busy calling tools. And agent evals are not chat evals: you grade a whole trajectory of tool calls, not one message. Two agents can land on the same reply while one took ... Read More
