WebMCP and RAG

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Emiliano Balsamo

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Feb 13, 2026, 5:29:15 AM (13 days ago) Feb 13
to Chrome Built-in AI Early Preview Program Discussions
Good morning everyone, thank you for the invitation. 
I'd like to discuss with you the potential uses of this tool. It's undoubtedly an excellent way to easily retrieve website data for HTML pages. There's no denying that you can build dedicated pages for companies, including front-office pages for secretaries and other staff. Over the past few days, I've been focusing on building a demo RAG for my website for pharmacies, which can retrieve appropriate products based on symptoms on a small dataset, such as 50 medications. I'd be very interested in testing WebMCP's response times on a website with a lot of data compared to a RAG on the same dataset. Would it make sense for you to do this? Agents for small use cases would be very fast, and the user experience would benefit.

Thanks for attention

Ryan Bellotti

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Feb 13, 2026, 7:01:21 AM (13 days ago) Feb 13
to Chrome Built-in AI Early Preview Program Discussions, Emiliano Balsamo
Good morning 

Hemanth

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Feb 13, 2026, 10:29:40 PM (13 days ago) Feb 13
to Chrome Built-in AI Early Preview Program Discussions, Ryan Bellotti, Emiliano Balsamo
I had a proposal for window.rag couple of year ago https://github.com/WICG/proposals/issues/158 maybe it is worth investigating now? 

François Beaufort

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Feb 17, 2026, 5:24:02 AM (9 days ago) Feb 17
to Chrome Built-in AI Early Preview Program Discussions, Hemanth, Ryan Bellotti, Emiliano Balsamo
You could indeed expose a WebMCP tool that searches your database for products and that tool could use RAG.
Note thought that RAG and WebMCP are orthogonal.
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