The real thing I think people are rediscovering with file system based search is that there’s a type of semantic search that’s not embedding based retrieval. One that looks more like how a librarian organizes files into shelves based on the domain. We’re rediscovering forms of in search we’ve known about for decades. And it turns out they’re more interpretable to agents. https://softwaredoug.com/blog/2026/01/08/seman…
We replaced RAG with a virtual filesystem for our AI documentation assistant
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Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#12Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#13The real thing I think people are rediscovering with file system based search is that there’s a type of semantic search that’s not embedding based retrieval. One that looks more like how a librarian organizes files into shelves based on the domain. We’re rediscovering forms of in search we’ve known about for decades. And it turns out they’re more interpretable to agents. https://softwaredoug.com/blog/2026/01/08/seman…
Someone simply assumed at some point that RAG must be based on vector search, and everyone followed.
We started with LLMs when everyone in search was building question answering systems. Those architectures look like the vector DB + chunking we associate with RAG.
Agents ability to call tools, using any retrieval backend, call that into question.
We really shouldn’t start RAG with the assumption we need that. I’ll be speaking about the subject in a few weeks
https://maven.com/p/7105dc/rag-is-the-what-agentic-search-is...
Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#14$70k?
how about if we round off one zero? Give us $7000.
That number still seems to be very high.
Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#15The real thing I think people are rediscovering with file system based search is that there’s a type of semantic search that’s not embedding based retrieval. One that looks more like how a librarian organizes files into shelves based on the domain. We’re rediscovering forms of in search we’ve known about for decades. And it turns out they’re more interpretable to agents. https://softwaredoug.com/blog/2026/01/08/seman…
This kind of circles back to ontological NLP, that was using knowledge representation as a primitive for language processing. There is _a ton_ of work in that direction.
Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#16Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#17Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#18I think this is a great approach for a startup like Mintlify. I do have skepticism around how practical this would be in some of the “messier” organisations where RAG stands to add the most value. From personal experience, getting RAG to work well in places where the structure of the organisation and the information contained therein is far from hierarchical or partition-able is a very hard task.
Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#19Re: We replaced RAG with a virtual filesystem for our AI documentation assistant
#20Earlier quoted context omitted.
Someone simply assumed at some point that RAG must be based on vector search, and everyone followed.
It’s something of a historical accident We started with LLMs when everyone in search was building question answering systems. Those architectures look like the vector DB + chunking we associate with RAG. Agents ability to call tools, using any retrieval backend, call that into question. We really shouldn’t start RAG with the assumption we need that. I’ll be speaking about the subject in a few weeks https://maven.com/…