Repository-Scoped Knowledge Graph Context for Ontology Validation Test Generation: A Controlled Evaluation on TKTOnto

<title>Abstract</title> <p>We evaluate repository-scoped knowledge graph context selection for ontology validation test generation on TKTOnto, a multi-module OntoUML artifact spanning Smart Building and Smart Grid domains. In a three-arm comparison, the scoped arm automatically selected the relevant ontology module, excluded the irrelevant one, and satisfied a deterministic relevance contract in all four generation instances while reducing input tokens by 2.24 %.</p>