Worked on the apache/sedona-db repository to deliver a geometry validity feature focused on enhancing data integrity and interoperability in geospatial workflows. Developed the ST_IsRing function within the sedona-geos module using Rust and the geos crate, enabling validation of whether a geometry is a closed and simple LineString. The implementation included comprehensive tests for valid rings, self-intersections, non-closed lines, and empty geometries, ensuring robust input validation. Additionally, the feature incorporated PostGIS-compatible error handling for non-linear geometries, aligning behavior with established standards. This work improved the reliability of spatial analyses and supported downstream GIS processes through Python and Rust integration.