Worked on the Scalr/terraform-provider-scalr repository to enhance policy flexibility by renaming the assume_service_account_policy operator from 'like' to 'contains', enabling substring matching for service account policy expressions. This update required changes across the Go-based provider schema, comprehensive test adjustments to validate the new matching behavior, and thorough documentation updates in Markdown to guide users on the revised operator usage. The work improved automation reliability and expressiveness in infrastructure provisioning, allowing for more precise policy definitions. The approach demonstrated attention to detail in both code and documentation, ensuring the feature was robustly implemented and clearly communicated to end users.