I'll be honest here, I just don't understand the point or value here.
I've seen a whole heap of graph-based startups start and then pivot or fail because having a graph doesn't seem to add any additional value that a Sqllite or Postgres database offers. That is, saying we have a "context graph" is just marketing speak, it doesn't really add any new possibility or feature that isn't possible from using other search and database tools.
Also, this kind of tool, using AI to extract a decision from Granola for example, is possible to one-shot prompt. I.e. you don't need any special tool to do it, you just need a single prompt. Granola itself has this kind of functionality.
I think you're trying to solve a problem that doesn't really exist, what surface patterns are you going to uncover that someone don't know to look for? Either there is a todo from a meeting or note or email or there isn't.
Writing notes or prep for a meeting isn't rocket science, and you don't need a graph database to "surface patterns" to prepare your pre-meeting notes. If you use something like Granola, 99% of the time (or maybe 100% really), the Granola summary is all you need. If you want something more you copy the whole transcript and send it to Claude for some specific reason.
Since you're a YC company, I assume this will become paid at some point, but why would I pay when just having an AI note-taker and Claude access is already perfect?