Marcelo Avancini updated the documentation for DynamoDB Global Secondary Indexes (GSIs) in the opentofu/terraform-provider-aws repository, focusing on clarifying the impacts of recent deprecations and guiding users on multi-attribute key usage. He ensured the documentation accurately reflected the latest implementation changes, reducing migration risk and user confusion. Marcelo’s work involved careful analysis of AWS and Terraform integration points, using HTML and Markdown to deliver clear, actionable guidance. By aligning the documentation with the merged approach prior to release, he improved onboarding and developer trust. The depth of his contribution lies in addressing nuanced migration scenarios and technical documentation accuracy.