In the long arc of human tool-making, the search engine — once a humble index of the world's knowledge — is quietly becoming something more intimate: an agent that acts, not merely informs. Google has begun connecting its AI Mode search interface to third-party applications like Instacart, Canva, and YouTube Music, allowing users to complete real-world tasks through conversation rather than clicks. The move is both a competitive response to rivals like OpenAI and Anthropic and a philosophical pivot — from answering questions about life to participating in it.