Building a Production AI Agent in Spring Boot: Streaming Responses with SSE (Part 3)

"Is it stuck?" The same tester who caught the memory bug in Part 2 found the next problem, and this one was harder to explain. She asked the e-commerce agent: "Can I return the blue jacket from my last order, and what does the return policy say?" That question needs two tool calls. The order lookup tool runs, the policy tool runs, then the model writes a long answer with the jacket details, the order number, and the policy steps. On my setup that whole round trip took about ten seconds. For ni