Banger paper on self-evolving ontologies for agents. You just can't go wrong with implementing an ontology layer for your agents. This paper shows exactly why. The show that GPT-5.5 gains 26.7 points on DDR-Bench when the data agent can query an ontology of the data it works with. Why is this useful? Data agents normally see tables, files and databases through generic tools, reading column names and file paths one call at a time. The alternative is a hand-written semantic layer pasted…