Melissa operates as a conversational AI agent that uses advanced natural language understanding to interpret user commands, generate context-aware responses, and perform automated tasks. It provides features such as task scheduling, appointment reminders, data lookup, and integration with external APIs like Google Calendar, Slack, and email services. Users can extend Melissa’s capabilities through custom plugins, create workflows for repetitive processes, and access its knowledge base for quick information retrieval. As an open-source project, developers can self-host Melissa on cloud or local servers, configure permissions, and tailor its behavior to suit organizational requirements or personal preferences, making it a flexible solution for productivity, customer support, and digital assistance.