Worked on the erigontech/erigon repository to enhance the reliability of debug tracing and improve API stability in backend systems. Focused on hardening error handling by explicitly managing failures during transaction-to-message conversion, which preserved valid JSON result structures and ensured accurate transaction context construction. Introduced safeguards in the debug_storageRangeAt function to prevent negative maxResult values, reducing the risk of runtime panics. Added regression tests to verify the safety and maintainability of these changes, supporting long-term deployment in geth-compat mode. Utilized Go for backend development, emphasizing robust API development, error handling, and comprehensive testing throughout the process.