During April 2026, this developer focused on enhancing the reliability of OAuth authentication flows in the n8n-io/n8n repository. They addressed a critical bug in the MCP OAuth integration by correcting the construction of discovery URLs and refining grant type handling, particularly for scenarios where the server does not advertise refresh tokens or already includes a well-known path. Working primarily with TypeScript, API integration, and OAuth protocols, they improved interoperability and reduced authentication errors for developers using MCP-enabled servers. Their efforts centered on backend stability and correctness, prioritizing robust authorization flows over new feature development during this period.