AgentCore Runtime Adds Bring-Your-Own File System with S3 and EFS for Multi-Agent Collaboration

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AWS AgentCore Runtime now supports attaching Amazon S3 Files and Amazon EFS (Elastic File System) access points directly to agent sessions, mounted at developer-specified paths using standard file operations with no custom mount code required. This enables agents to load shared prompt templates, skills, or datasets at session start without re-downloading, persist intermediate results across sessions, and collaborate on shared data across multiple agents simultaneously. S3 Files offers automatic synchronization; EFS provides sub-millisecond latency shared NFS storage. The feature is available across all 15 AWS Regions where AgentCore Runtime is supported.