Reasoning is how an AI agent handles problems that do not have a single obvious answer. It involves evaluating conditions, weighing options, identifying what information is needed, and working through a problem logically before acting.
Agents that can reason handle ambiguity, exceptions, and novel situations. Agents that cannot will fail on anything outside their training distribution. The difference between an AI that returns a generic FAQ response and one that checks the user's specific account history and known outages before answering is reasoning.
