Worked on the Prometheus repository to enhance backend reliability and performance by addressing validation logic in the metric scraping process. Focused on activating the MetricNameValidationScheme validation, replacing a lingering TODO to ensure the validation logic was fully operational. Removed redundant validation steps in the scraping path, which reduced configuration complexity and eliminated potential inconsistencies in metric collection. Utilized Go for backend development, making targeted changes across two key commits. The work improved the stability of metric scrapes by simplifying the validation path and reducing duplication, reflecting a careful approach to code maintenance and reliability within a core monitoring system.