Styra Declarative Authorization Service (DAS) is a governance and automation tool for managing Open Policy Agent (OPA) at scale. Built by the creators of OPA, the tool allows us to deploy policies across "systems," including Kubernetes clusters, infrastructure code repositories, namespaces and more. Most importantly, it allows for real-time analysis of decisions made by an OPA agent, along with replayability for debugging and investigating what-if scenarios for policy changes. It also comes with an audit log that can help security teams with historical reporting.