Worked on the dbt-labs/dbt-core repository to address a bug in the Redshift adapter, focusing on accurate propagation of cloud configuration during adapter initialization. Utilized Rust and backend development skills to ensure that cloud-related metadata is correctly included in query comments, which improves the reliability of Cost Insights query ID resolution. Developed comprehensive unit tests to validate behavior both with and without cloud configuration, reinforcing code reliability and preventing future regressions. This work enhanced the observability and maintainability of the adapter by enabling end-to-end validation of configuration propagation and query annotation, ultimately reducing downstream debugging and improving integration accuracy.