Worked on the mondaycom/mcp repository to enhance visibility into item change events and improve data quality for analytics. Developed a feature in TypeScript and GraphQL that exposes raw changed column values in the change_item_column_values tool, allowing downstream consumers to access exact database-formatted values for changed columns. Implemented server-side filtering by column IDs to optimize performance and minimize data transfer. Strengthened error handling around JSON parsing to increase tool resilience, and regenerated GraphQL types to reflect schema updates. Comprehensive unit tests were added to ensure the new behavior was robust and consistent across API surfaces, supporting reliable full stack development.