What Is Agent Toolkit for AWS? is an open-source project developed by AWS that helps AI coding agents work with AWS more reliably. With the recent addition of the newly released MCP server as part of the Toolkit, coding agents using the Toolkit can now access the AWS-specific context, workflows, guardrails, and tools they need to build, deploy, debug, and operate cloud systems without relying solely on general model knowledge, which is often out of date.