In September 2025, Pablo Erhard Hernandez enhanced the DataDog/dd-trace-js repository by improving MongoDB query visibility and sanitization for delete and update operations. He refactored the test suite to reduce flakiness and increase reliability, focusing on robust instrumentation testing. Using JavaScript and Node.js, Pablo expanded sanitization logic to support complex data types such as BigInt and Buffers, ensuring accurate and secure representation of queries through the mongodb.query tag. His work addressed edge-case data leaks and improved monitoring resilience, demonstrating depth in code refactoring, database monitoring, and testing practices while directly strengthening debugging and observability for MongoDB workloads.