Why context comes first
In current research and practice, the word context is often used loosely. It may refer to token window length, user history, discourse structure, safety rules, or sociocultural background. When those layers are compressed into one vague term, it becomes difficult to identify where risk is actually forming.
This research therefore treats conversational context as a structured field. User-side contextual hallucination is one phenomenon that emerges within that field, but it is not the field itself.