Worked on stabilizing the core trading functionality in the foundryvtt/pf2e repository, focusing on resolving a critical issue that prevented players from completing trades. Addressed a bug in the trade-request handling logic by updating query identifiers, ensuring that trade queries are processed reliably and restoring essential gameplay mechanics. Utilized TypeScript and JavaScript to navigate and modify a large codebase, maintaining alignment with established query handling patterns. Demonstrated proficiency in backend debugging and precise git-based change management. This work reduced player-reported issues, improved the reliability of the trading system, and laid the foundation for future enhancements to the module’s trading features.