Sam Choi focused on backend development and API integration for the game-by-virtuals/game-python repository, addressing a critical bug that impacted search reliability and business logic. Using Python, Sam implemented a solution to ensure the agent’s own address was excluded from search results, preventing self-commission scenarios and potential revenue leakage. The work involved migrating deprecated API parameters to the supported 'search' parameter, aligning the codebase with current documentation and improving long-term maintainability. Although no new features were added during this period, Sam’s targeted bug fix demonstrated a careful approach to risk mitigation and correctness in a production backend environment.