# Build agentic retrieval on a managed Amazon Bedrock Knowledge Base with CDK

> Original title: Build agentic retrieval on a Managed Amazon Bedrock Knowledge Base with CDK

- Source: AWS Machine Learning Blog
- Published: 2026-10-26T17:15:14.000Z
- Bad Influence: https://badinfluence.news/items/bq0tub32ip9y6ghjjtaxnjz8k
- Original: https://aws.amazon.com/blogs/machine-learning/build-agentic-retrieval-on-a-managed-amazon-bedrock-knowledge-base-with-cdk/

## Summary

AWS shows how to deploy agentic retrieval on a Managed Amazon Bedrock Knowledge Base using the AWS CDK. The agent routes each question across two knowledge bases through AgentCore Gateway, with observability and evaluation provisioned in the same app. One cdk deploy --all command deploys all four stacks, and the post says the managed knowledge base needs no OpenSearch Serverless collection.

## Why it matters

The post shows how a Managed Bedrock Knowledge Base, AgentCore Gateway and CloudWatch observability combine into one deployable CDK app, useful for teams building agentic retrieval.