Annette Shajan focused on enhancing the reliability of sensitive data detection in the trufflesecurity/trufflehog repository by addressing a bug in Larksuite token detection. She improved the regular expression logic in Go to introduce boundary conditions, which reduced false positives and increased scan accuracy for token detection. Her work centered on refining the security scanning process rather than adding new features, demonstrating depth in regular expressions and security-focused development. By aligning her code changes with issue tracking, Annette maintained traceability and code quality. This targeted bug fix contributed to more robust token detection workflows and improved the overall effectiveness of the tool.