<!-- title: Klarna式三层Agent架构伪代码 -->
# Klarna式三层Agent架构伪代码
class CustomerServiceAgent:
    def route(self, query):
        intent = self.classifier.predict(query)
        if intent.confidence > 0.92:
            return self.tier1_auto_resolve(query)  # 全自主
        elif intent.complexity < self.threshold:
            return self.tier2_agent_with_audit(query)  # Agent+抽检
        else:
            return self.tier3_human_lead(query)  # 人工主导

    def tier2_agent_with_audit(self, query):
        result = self.agent.execute(query, tools=