How to Refactor a Terraform Monolith into Modules Without Downtime

Part 2 of bringing a live AWS app under Terraform. How HashiCorp Agent Skills, the Terraform MCP Server and moved blocks turned a 1,600-line imported main.tf into seven modules with a plan of 0 to add, 0 to change, 0 to destroy, and how to retire the old CloudFormation stack safely.