Worked on the n8n-io/n8n repository to enhance the MQTT Trigger Node documentation, focusing on improving clarity around how Quality of Service (QoS) settings impact topic subscriptions. Addressed a documentation bug by correcting a typo and providing explicit guidance, which helps developers better understand MQTT-driven automations and reduces potential onboarding friction. The update was implemented using TypeScript and leveraged backend development skills within a Node.js environment. By clarifying the behavior of MQTT QoS in the documentation, the work contributed to a smoother developer experience and minimized support queries, while maintaining code quality and traceability through a co-authored commit process.