Evandro Franco

Amazon Bedrock AgentCore Runtime now supports stateful Model Context Protocol (MCP) client capabilities, enabling AI agents to pause execution for user input, request LLM-generated content, and stream real-time progress updates. Previously, stateless MCP implementations could only execute one-way tool calls without bidirectional communication. The update introduces three new capabilities: elicitation for mid-execution user requests, sampling for dynamic LLM content generation, and progress notification for long-running tasks. Stateful mode provisions dedicated microVMs per user session with up to 8 hours persistence, maintaining conversation continuity through session identifiers.