I've made an extension that works in the sidebar and lets you modify any website with AI.

I tried to make it feel like using Cursor or Codex. You can talk to it in a chat panel to refine the modification, ask a question, or request automation.

If you'd like, you can plug in your own key from OpenRouter or any other OpenAI-compatible service.

What I and early users actually use it for:

- Real-time claude.ai limits and a live usage chart, without having to open settings

- A draggable magnifying glass for YouTube videos

- Rearranging and hiding page elements for a cleaner view on stream

- A one-click ZIP download button when the site only allowed saving files one by one