ChatGPT’s Apple Messages plug-in, Slack’s collaborative vibe-coding channels, Google’s AI chatbot-tuned Discover feed and Meta glasses in the workplace all point in the same direction: AI is moving into the places where people already talk, browse, work and get watched. For product builders, the hard problem is no longer just making the assistant useful; it is deciding who controls the context, when the AI is allowed to act, and how visible that action should be.