HarshalAndhale9657/SecondBrain ? reverse-engineered prompt

Build me a Chrome extension called Second Brain that quietly saves the pages I visit and lets me ask questions about what I’ve read later.

It should work fully on my device by default, keep my browsing data local, and only send the question plus the most relevant saved snippets to an AI model when I ask something. I want it to capture page text from normal sites and also single page apps, clean up the content so it’s readable, avoid duplicates, and keep an index of pages with title, URL, and time visited.

Give it a side panel where I can search my saved pages, ask natural language questions, review what’s been indexed, and manage settings like pausing capture, adding blocked sites, and wiping everything. It would be great if it can also backfill from my recent Chrome history when I first install it.

If you need current docs for the extension APIs or the local AI pieces, look them up online.