Del Putnam enhanced the Scalar API Reference by implementing support for the propertyNames enum in JSON Schema, enabling precise validation and display of allowed object keys within schemas using additionalProperties. Working in the scalar/scalar repository, Del used TypeScript and Vue.js to update both the UI rendering and TypeScript typings, ensuring that enum values for propertyNames are accurately shown in property lists and reflected in code samples. The work included updating documentation snapshots and changesets to maintain consistency across builds. This focused effort improved the developer experience by clarifying schema constraints and stabilizing type definitions in a complex front end environment.