AWS AI Updates: June 6, 2026

1. Bedrock AgentCore Runtime Adds Interactive Shells for Live Terminal Access Into Agent Sessions

Amazon Bedrock. AgentCore Runtime introduced the InvokeAgentRuntimeCommandShell API, which opens a persistent, PTY-backed terminal directly into a running agent session over a WebSocket connection, complementing the existing one-shot command API. The shell runs inside an isolated microVM and supports colors, tab completion, Ctrl+C handling, terminal resizing, automatic reconnection, and persistent state such as environment variables, working directory, and command history, with up to 10 concurrent shells per runtime identified by session and shell IDs. It targets developers hosting coding agents such as Claude Code, OpenAI Codex, and Amazon Kiro on AgentCore Runtime, who can attach via the AgentCore CLI to authenticate, debug environments, inspect files, and run ad-hoc commands. Source

2. AWS MCP Server Gains Cross-Account and Cross-Role Access in a Single Session

AWS. The AWS MCP Server, part of the Agent Toolkit for AWS, now supports cross-account and cross-role access, letting AI coding agents operate across multiple AWS accounts and IAM roles within one session without restarting the server or rotating local credentials. Each request specifies which profile to use, so commands cannot reach the wrong account, replacing the prior workflow of halting the session, updating credentials, and relaunching the server. AWS cites scenarios such as querying CloudWatch logs across production and staging accounts or updating Lambda and S3 configurations in separate accounts, with support for agents including Kiro, Claude Code, and Codex and availability in US East (N. Virginia) and Europe (Frankfurt). Source