Worked on enhancing data validation robustness in the apollographql/apollo-mcp-server repository by addressing a bug related to GraphQL numeric input handling. Updated the JSON schema type mapping so that GraphQL Int types are mapped to 'integer' and Float types to 'number', ensuring the server gracefully manages invalid values sent by the ChatGPT client. This adjustment, implemented using Rust and leveraging skills in API development and GraphQL, reduced the risk of server errors and improved compatibility for downstream services. The solution preserved existing validation workflows and required no changes to the public API, contributing to more stable data ingestion processes.