Multiplayer annotations enhance traditional session replay tools by providing a comprehensive way to connect user interactions with backend data, such as API calls, traces, and logs, thus transforming session recordings into executable development plans. They allow for precise, contextualized instructions by enabling real-time annotations on session recordings, including visual markup, timestamp notes, and references to specific system data, which fosters effective cross-role collaboration between support, engineering, product management, QA, and vendor communications. These annotations also make the sessions AI-ready, allowing AI tools to consume structured context for generating accurate fixes, tests, or new features with minimal prompting, offering a more informed and efficient development workflow. With Multiplayer, teams can streamline their processes by using a shared visual language and obtaining a full-stack view of the sessions, enhancing communication and reducing the need for repetitive, clarifying questions.