Worked on the withastro/astro repository to resolve a JSON Schema validation issue affecting the file() loader, specifically addressing support for top-level arrays and records. Used TypeScript and JSON Schema to implement an anyOf-based schema generation approach, which eliminated VS Code validation errors and improved developer experience. Updated related tests to ensure both array-shaped and object-shaped inputs were validated, preventing future regressions. Enhanced user documentation and maintained compatibility by injecting $schema only into the object branch. This work demonstrated a thorough approach by aligning code, tests, and documentation, focusing on reliability and usability in front end development workflows.