When a developer triggers code generation in the wca4z IDE plugin, where does the actual AI inference occur?

Think of it like working hands-on with IBM mainframe systems — the answer here is 'On the developer workstation using a locally cached ONNX model file'. The wca4z IDE plugin sends prompts to the IBM watsonx platform where the fine-tuned foundation model performs inference and returns generated Java code to the developer. On real mainframe exams, this concept comes up repeatedly so make sure you have it locked in.