I think it's relatively unlikely that having an agent write graph queries will outperform vector search against graph information outputted into text and then transformed into vectors.
The related issue that I think is being conflated in this thread is that even if your goal was to directly support graph queries, you could accomplish this with a vanilla database much easier than running a specialized graph db
The related issue that I think is being conflated in this thread is that even if your goal was to directly support graph queries, you could accomplish this with a vanilla database much easier than running a specialized graph db