Context Graphs Make AI Decision Trails Queryable
Stephen Chin of Neo4j argues that enterprise AI systems need context graphs because retrieval alone can surface relevant facts while missing the relationships that make them usable. In his examples, a graph-augmented system can connect a patient’s emphysema care plan to smoking history or a credit decision to prior rejections, policies, margin trades and fraud signals. Chin’s case is that agents should preserve not only documents and answers, but the decision traces, tool calls, causal chains and outcomes that let humans inspect and reuse prior reasoning.
AI Engineer·May 16, 2026·12 min read
