intermediateSpring AI — Tool Calling, Agents & Production
What is tool/function calling in Spring AI? How do you register a Java method as a tool?
Annotate a method with @Tool and pass its containing object to chatClient.prompt().tools(...). Spring AI generates a JSON schema for it and sends it to the LLM; when the LLM decides to call it, ToolCallingAdvisor intercepts, executes the real Java method, and feeds the result back for the LLM to finish its answer.
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