Chrome's new "Skills" feature isn't just another way to save prompts. It's a fundamental shift in how we think about AI interaction — from conversational to instrumental, from asking to doing. The premise is simple: take your best prompts, the ones that actually produce useful output, and turn them into one-click tools. No more retyping. No more forgetting the exact phrasing that worked. But the implications run deeper than convenience. From Conversation to Composition We've spent two years treating LLMs as chatbots. Ask a question, get an answer. The interface trained us to think in turns. But the most valuable AI workflows aren't conversational — they're compositional. You string together specific operations: extract structured data from this page, summarize it against these criteria, format it for that destination. Chrome Skills formalizes this pattern. It treats prompts as functions, not messages. And that matters because functions can be composed, shared, and versioned in ways that chat history cannot.…