Why it matters

AiServices simplifies agent code. Understanding shapes design.

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The architecture

Interface with @UserMessage etc.

Builder wires model + tools + memory.

Proxy implements at runtime.

AiServices flowJava interfaceannotatedAiServices.builderwire dependenciesRuntime proxyinvokes LLMDeclarative + type-safe; hides orchestration; check ChatMemory + Tools for advanced
AiServices.
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How it works end to end

@SystemMessage, @UserMessage, @V annotations.

Return types: String, records, streams.

Tools: @Tool annotation.

Memory attached.