Typed Domain Grounding: embed DSLs in typed host languages to reduce LLM DSL hallucinations
An InfoQ article proposes Typed Domain Grounding (TDG), which embeds a domain as a typed internal DSL inside a training-data-rich host language so LLMs surface domain errors as type/compile errors rather than silent syntactic inventions. In a 50-task benchmark TDG scored higher on Structural Fidelity and lower hallucination rates with Claude Sonnet 5 (and showed similar patterns for GPT-4o in some tests) compared to two lenient external DSLs, while trading off a lower first-try compile rate and reduced notational freedom.