StackStorm is an open-source platform designed for event-driven automation, allowing users to automate complex workflows and operations across various systems and applications. It operates by sensing events from numerous sources, applying user-defined rules, and executing automated actions or workflows in response to these events. This capability makes StackStorm versatile for use cases like DevOps automation, ChatOps, and automated incident response. The platform supports integrations with a wide range of tools and technologies, making it adaptable to diverse IT environments.