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Bedrock Managed Knowledge Base adds single-shot and retrieval-only modes alongside agentic retrieval

AWS says Amazon Bedrock Managed Knowledge Base now handles single-shot RAG and retrieval-only requests through AgenticRetrieveStream, and agentic retrieval is still available. AWS says a parameter called maxAgentIteration controls how much retrieval effort each request gets. Its walkthrough uses a made-up internal banking policy assistant as the example.

Verdict
Use The public docs say it does what you need. We read the docs. We did not test it.
For
AWS developers and ML engineers building RAG and agent applications on Amazon Bedrock
Why it matters
Teams building RAG on Bedrock can match retrieval depth to each query. Simple lookups can use a cheap single pass, and multi-step agentic loops can be saved for harder questions, which can help them balance cost and latency against answer quality.
Next check
Check the AWS docs for which regions support AgenticRetrieveStream, how it's priced, and the default and maximum values for maxAgentIteration.
Published
By
The Loaded Tokens desk
Topic
Build & deploy
Sources
Amazon Web Services

Sources & limits: This is our recap, not a copy of the original. The links above are the pages we read. We didn't test it ourselves.

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