Spring AI 2.0 Enables Visual Tool Calling Flows

therealdanvega · x · 2026-07-18

Spring AI 2.0 moves the tool calling loop into the advisor chain, allowing developers to directly hook into, intercept, and observe the execution process. Based on this, the author built a streaming chat interface that displays each tool call in real-time as a pill, such as "Calling getWeatherForecast...".

The attached image shows a more complete example: when answering "what to pack for Chicago," the chatbot first calls tools for dates, weather, and city events before generating packing advice categorized by weather, clothing, rain gear, and local activities.

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