I’m not an expert on this, so I’m not familiar with what RDF graphs are, but I feel like everything you’re describing happens textually, and used as context? That is, it’s not at all ”learning” the way it’s learning during training, but by writing things down to refer to them later? As you say - ”ask it to summarize the insights for later use” - this is fundamentally different from the types of ”insights” it can have during training. So, it can take notes about your code and refer back to them, but it only has meaningful ”knowledge” about code it came across in training.
To me as a layman, this feels like a clear explanation of how these tools break down, why they start going in circles when you reach a certain complexity, why they make a mess of unusual requirements, and why they have such an incredible nuanced grasp of complex ideas that are widely publicized, while being unable to draw basic conclusions about specific constraints in your project.