Amazon S3 adds annotations, so you can attach custom metadata to your S3 objects at massive scale, giving AI agents and analytics tools the context they need to find and use the right data. Annotations are a new metadata capability purpose-built for attaching business context directly in JSON, XML, or YAML to your objects, with up to 1GB per object. Annotations can be modified or deleted at any time, making it easier to keep context current as your data evolves. This lets applications and AI agents discover and understand your data without building or maintaining separate metadata systems. S3
Source: AWS What's New — read the full report at the original publisher.