Amazon Bedrock Knowledge Bases

Headlines · 2

1. 15h
   Amazon Quick adds real-time ACL checks to RAG with Bedrock Knowledge Bases

   An AWS technical post describes how Amazon Quick and Amazon Bedrock Knowledge Bases enforce access control in retrieval-augmented generation. The two-stage design first filters candidates using ACLs stored in the vector index, then verifies each candidate at query time by calling the authoritative source—such as Google Drive APIs via service-account impersonation—so only authorised passages reach the LLM. AWS says this avoids stale or mis-mapped permissions from replicated ACL syncs, and cites Mondelēz International, which it says has deployed Amazon Quick for more than 35,000 employees across four regions.

   AWS Machine Learning Blog · 🔥 7
2. 2d
   AWS tutorial: building a voice travel concierge with AgentCore and Nova Sonic

   An AWS Machine Learning Blog tutorial walks through deploying a voice travel concierge on Amazon Bedrock AgentCore: Amazon Nova 2.5 Sonic handles real-time speech-to-speech, Strands Agents defines the agent, and AgentCore Gateway exposes airline backend endpoints as MCP tools, with Amazon Bedrock Knowledge Bases answering policy questions via RAG. The post says Nova 2.5 Sonic improves tool calling and multi-step agentic task completion and supports bidirectional streaming, asynchronous tool calls, latency masking and barge-in. The solution deploys with AWS CDK and a React front end on Amplify.

   AWS Machine Learning Blog · 🔥 3

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