[Atlas] Implement preset AI skills with direct activation

OpenAI has just released their AI browser. Compared with Dia, Atlas has an additional agent feature. However, at this stage, Atlas still lags behind Dia in many aspects. From my daily usage scenarios, here are several areas where Atlas falls short of Dia. **1. When browsing web pages:** My most frequent use case is opening the sidebar to summarize web pages, fact-check content, and ask in-depth questions. * **Dia:** It offers preset skills that can be called up directly using “/”. You can simply press Enter without having to write prompts temporarily, which is extremely simple and convenient. Moreover, Dia allows step-by-step skill setups, making it well-suited for handling complex tasks. * **Atlas:** Although “/” can bring up ChatGPT’s built-in tools and GPTs, you still need to manually write prompts. → In this most common use case of mine, Dia is much more convenient and intuitive than Atlas. **2. Searching from new tabs or the address bar** * **Dia:** You can choose whether to use a search engine or ask the AI directly. I often prefer searching with a real search engine. I especially like **Kagi**, which I’ve set as my default in Dia—super convenient. * **Atlas:** It defaults to ChatGPT’s answers or searches, and the first thing shown is ChatGPT’s (GPT-5 instant) response, which currently can’t be changed. You can later view search results, image searches, or video searches, but it just doesn’t feel as natural—perhaps I’m just not used to it yet. **3. Interface design and overall smoothness:** * **Dia:** The overall design looks more cohesive and offers more display space. The “Show bookmarks only on new tab” option is a big plus—it’s one of the essential qualities a browser should have. The new tab page has just one input box—simple, elegant, and restrained. * **Atlas:** The design feels less harmonious. The address and tab bars are taller than those in Dia, taking up more screen space (though maybe I’m just used to Dia). The new tab page looks like its own AI web app, but less refined than the original one. The experience feels somewhat fragmented. Also, the left sidebar makes sense on a new tab page, but looks odd when opened on an already active page. **4. Other issues:** Atlas occasionally suffers from mouse pointer issues—clicking buttons on some pages doesn’t work. Restarting fixes it, but it’s hard to reproduce. Of course, since Atlas has just been released, it’s understandable that there are still some bugs. I believe with user feedback and OpenAI’s rapid iteration, it will improve quickly. Feedback and discussion are welcome!