Nicole Vasilevsky worked on the monarch-initiative/mondo repository, focusing on improving the quality control pipeline for ontology management. She addressed a specific data hygiene issue by excluding the term 'premature senesence, non-human animal' from automated QC checks, implementing this through a new relationship in the OBO-based ontology. Using skills in ontology curation, version control with git, and QC automation, Nicole ensured that quality assurance reviews now target only relevant terms, reducing noise and false positives. Her work included validating changes through continuous integration and maintaining documentation, resulting in a more reliable and efficient process for phenotype term propagation and downstream analyses.