Bedrock

AWS released Amazon Nova Sonic, a speech-to-speech foundation model for voice agents, alongside AgentCore Runtime, a serverless hosting environment with WebSocket streaming and microVM isolation. The framework supports three integration patterns: direct tool calls via AgentCore Gateway using Model Context Protocol (MCP), sub-agent delegation with Agent-to-Agent (A2A) protocol, and session segmentation for multi-step workflows.

AWS has released support for custom Model Context Protocol (MCP) proxies on Amazon Bedrock AgentCore Runtime, allowing organizations to implement custom governance and security controls on AI agent tool interactions without modifying upstream MCP servers. The serverless proxy runs on AgentCore Runtime with automatic scaling and built-in observability through CloudWatch and OpenTelemetry.

AWS has added OpenAI's latest models, Codex, and a new managed agents service to its Bedrock platform, one day after OpenAI revised its agreement with Microsoft. The integration follows OpenAI's up-to-$50 billion deal with Amazon.

Amazon Bedrock AgentCore Runtime now offers managed session storage to persist agent filesystem state across stop/resume cycles and InvokeAgentRuntimeCommand for executing shell commands directly within agent microVMs. The features address two core challenges in production agent workflows: ephemeral filesystems that reset between sessions and the inability to execute deterministic operations without routing them through LLMs.