AWS: Three Production Approaches to Programmatic Tool Calling on Amazon Bedrock

AWS Machine Learning Blog·medium signal

AWS published a technical deep-dive showing three approaches for programmatic tool calling on Bedrock: a self-hosted Docker sandbox on ECS, a managed solution using Bedrock AgentCore, and a hybrid approach. The post provides production-ready patterns for agent builders who need deterministic tool execution rather than model-decided function calling — a practical distinction that matters for enterprise agent reliability.