Amazon Bedrock 托管知识库支持单次与代理式检索
原标题：Single-shot and agentic retrieval with Amazon Bedrock Managed Knowledge Base
AI 摘要
AWS 宣布 Amazon Bedrock Managed Knowledge Base 通过 AgenticRetrieveStream 接口支持单次 RAG 和仅检索请求，并将 maxAgentIteration 范围扩展至 0-5。开发者可用同一 API 按请求选择仅检索、单次 RAG 或代理式多轮检索三种模式，从而在简单查询上降低延迟和模型调用成本，在复杂问题上保留多轮规划与证据评估能力。
正文节选
Single-shot and agentic retrieval with Amazon Bedrock Managed Knowledge Base A banking operations employee starts the morning by asking an internal AI assistant which documents are needed to open a business account. The answer is in a single checklist. A few hours later, the same employee asks how those requirements differ across sole proprietorships, LLCs, and partnerships with multiple owners. That answer is spread across several policy guides. One assistant has to handle both questions, quick