Jackie focused on backend security enhancements during the month, delivering two targeted features across the dataease/sqlbot and 1Panel-dev/MaxKB repositories. For dataease/sqlbot, Jackie implemented upload access controls to restrict file uploads to authorized users, reducing the risk of remote code execution, and refactored decorator usage for more reliable upload handling. In 1Panel-dev/MaxKB, Jackie introduced input validation for MCP transport processing, leveraging Python and backend development skills to prevent command injection vulnerabilities by integrating ToolExecutor’s validation method. The work demonstrated a methodical approach to security best practices, addressing specific attack vectors and improving code maintainability within a short timeframe.