Worked on enhancing the AviatrixSystems/terraform-provider-aviatrix repository by improving the reliability of API error handling. Focused on replacing brittle string-pattern checks with direct validation of HTTP status codes, this change enabled more accurate detection of API errors and reduced the likelihood of false positives in automated workflows. The update benefited both CI pipelines and end users by ensuring that error responses were identified consistently and efficiently. Leveraging Go for implementation, the work demonstrated strong skills in API development and error handling, contributing to a cross-repository improvement effort and addressing a key bug that impacted the stability of API integrations.