Worked on the microsoft/presidio repository to enhance the anonymization pipeline by introducing a configurable option for merging adjacent entities separated by spaces. Developed the merge_entities_with_spaces parameter within the anonymize() method, allowing users to tailor entity merging behavior to their specific privacy requirements. This feature was implemented using Python and involved careful parameterization and unit testing to ensure reliability and traceability, as evidenced by linked commit references. The update addressed real-world data anonymization needs by improving flexibility in privacy masking, supporting compliance with data handling standards, and enabling more accurate anonymization workflows in production environments without introducing new bugs.