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Wednesday, 17 June 2026

Amazon S3 annotations: attach rich, queryable context directly to your objects

AWS 4 months ago 50

Amazon announced S3 annotations, a new metadata feature allowing users to attach up to 1 GB of rich context per object in flexible formats like JSON and XML, which can be modified without rewriting objects and automatically indexed into queryable tables. Each object can store up to 1,000 named annotations of 1 MB each, with queries executable through Amazon Athena without retrieval costs even for archived data in S3 Glacier. Organizations can now build AI agents and autonomous workflows that discover and act on data at scale without maintaining separate metadata databases or complex synchronization systems.

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AI Infrastructure Agentic Workflows AWS

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