Meta's AI agent Muse has surpassed OpenAI's ChatGPT as the top-ranked application on Apple's App Store, marking a significant shift in consumer adoption of autonomous AI systems. The milestone has triggered a high-stakes battle among e-commerce platforms over who controls customer relationships when AI agents independently make purchasing decisions. Amazon has responded defensively, blocking Muse from accessing its shopping platform, while Shopify has seized the opportunity by opening its doors to AI agent integrations. The conflict reflects a deeper architectural question reshaping digital commerce: as autonomous agents gain capability to negotiate, compare, and transact on behalf of users, which platform owns the customer relationship? Amazon's blockade signals concern that AI agents could disintermediate its marketplace, routing purchases through competing channels. Conversely, Shopify's embrace of agent technology positions it as infrastructure for a future where merchants compete for AI recommendations rather than direct consumer attention. This competitive dynamic comes as the broader AI industry continues advancing safety and liability frameworks. Recent developments include Grok 4.7 updates, emerging AI liability standards, and cross-laboratory safety testing initiatives aimed at ensuring autonomous agents operate reliably across enterprise and consumer contexts.