David Sastre focused on enhancing vulnerability data quality in the ossf/malicious-packages repository by standardizing NPM vulnerability reporting to comply with the OSV JSON schema. He implemented a targeted Python code change to ensure that fixed version information was included in NPM vulnerability records, directly addressing gaps in data consistency and accuracy. Leveraging skills in data formatting, schema validation, and NPM package analysis, David’s work enabled more reliable risk assessment and streamlined triage for security teams. This contribution improved the integrity of open source vulnerability data, supporting downstream consumers who rely on complete and standardized records for effective security analysis.