Multi-party conversational AI is transforming how agents interact with user groups, moving beyond simple, direct queries from single users to enable smarter engagement in team collaborations. Instead of modifying existing AI agents, a separate group reasoner layer detects patterns (e.g., factual contradictions, stalled decisions) in group chats and translates them into self-contained queries for existing, downstream AI systems. This approach is showcased in open-source projects like Group Sense, Group Genie, and Hybrid Groups. Key challenges include detecting when and how agents should engage, and acting on behalf of individual group members. The article also highlights the need for flexible definition and evolution of engagement criteria and links relevant research for those interested in the evolving field of multi-party conversational AI.