Amazon と Perplexity の訴訟に関する考察（27 分読み）

Amazon is suing Perplexity for breaking the Amazon Store's Conditions of Use as Perplexity's Comet browser circumvents the requirement to clearly identify itself as an agent and instead identifies itself as Chrome. The idea that Perplexity's client needs to behave in a certain way goes against the basic principles of the open Web, which are about user control. The increased user agency of the open Web is what distinguishes it from downloadable apps. Sites have historically attempted all kinds of technical measures to prevent users from experiencing their content on their terms, but at the end of the day, the site is rendered on the client, so users mostly have the ability to download a client that renders the site in the way they prefer. Agentic browsing is just another browser feature that lets users engage with the Web on their terms.