In February 2025, Jan Pribyl developed a key API feature for the TonicAI/textual repository, enabling customizable redaction workflows through the addition of a custom_entities parameter. Using Python and leveraging skills in API development and data redaction, Jan unified the behavior and error handling across redact, redact_bulk, and download_redacted_file endpoints, reducing integration risk and future maintenance effort. The work also included improvements to developer documentation, clarifying the use of custom_entities in docstrings to enhance consistency. This feature addressed privacy compliance and operational efficiency, providing a more flexible and maintainable solution for handling custom PII entity types in API workflows.