I think we all have a similar flow and pain with browsers and AI. Copy article, paste in Claude tab, come back to article, back to Claude, in circles we go.

Anthropic has a Chrome extension, but my daily driver is Safari. So I made my own extension.

It's not a clone as I've never used the Chrome version. One obvious change: the Chrome version I believe uses Chrome "request sidebar" thing. And Safari doesn't have that, so had to inject the sidebar right in the site html itself.

There's been some fun things in here like figuring out the sidebar html/css sandboxing. Also there's an agent mode where I added domain change alerting (amongst other antagonistic hidden prompt protection things) to hopefully avoid XSS/CSRF type problems.

I've debated so much about this like: just open sourcing it, putting it on the app store, and who the audience even is. Is it me? So someone who can easily get an API key but then who can maybe just take a crack at building their own. Or is it my non-developer wife, who'd totally get value from it, but now has to get a friggin API key :(

But yes, I landed on just trying to sell it for $29 a year with a 7 day free trial. I saw when I was running Highrise people took the trial most seriously when it was credit card up front.