Simplify how you build and publish Custom Agents with AWS Transform Agent Builder Toolkit

This article introduces the AWS Transform Agent Builder Toolkit, which enables organizations to build and deploy custom agents that encode proprietary transformation methodologies within AWS Transform.

• Custom agents encode partner delivery methodologies, enterprise standards, and ISV tools as reusable products instead of manual processes
• Agents compose with AWS Transform's native agents, reading discovery data and gating execution until custom checks pass
• AWS Professional Services built a custom agent orchestrating wave planning, dependency mapping, and runbook generation for large-scale migrations
• Mainframe modernization agents handle assessment, business rules extraction, and reverse-engineering, reducing multi-year timelines to months
• Agents run as containerized workloads on Amazon Bedrock AgentCore, communicating via MCP server with secure cross-account access through connectors
• Example landing zone readiness agent pulls documentation from Confluence, scores maturity, generates reports, and creates CloudFormation templates via GitHub PRs
• Deployment uses one-command toolkit to build Docker image, push to ECR, deploy to AgentCore, and register with AWS Transform

The toolkit enables organizations to productize custom transformation logic, deploying once and reusing across engagements without modification.