During March 2026, Marius focused on enhancing the stability and reliability of the Kilo-Org/kilocode repository, addressing critical issues in MCP configuration loading and mode-switching logic. Using TypeScript and Node.js, Marius implemented robust error handling to ensure that malformed JSON in configuration files no longer disrupted the loading of valid settings. He also introduced upper-bounds checks in the mode-switching component to prevent crashes when the dynamic agent list changed unexpectedly. By adding comprehensive regression tests for both unit and integration scenarios, Marius improved system resilience during MCP migrations, reducing downtime risk and increasing developer confidence in configuration changes and deployments.