Stop Returning Text from RAG: The Typed Answer Contract That Prevents Hallucination
The article discusses the concept of a typed answer contract in large language models to prevent hallucination. This contract is a schema that the model must fill, with every field being a question that the pipeline asks the model and every answer being checkable. The schema is the contract between the pipeline and the model, and it can be extended to ask for more than just the answer, including typed values, multi-element answers, and citations.
- ▪The typed answer contract is a schema that the model must fill, with every field being a question that the pipeline asks the model and every answer being checkable.
- ▪The schema is the contract between the pipeline and the model, and it can be extended to ask for more than just the answer.
- ▪The model's job is to turn passages and a question into an answer, and it will hallucinate if it is not grounded in the retrieved passage.
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Large Language Model Stop Returning Text from RAG: The Typed Answer Contract That Prevents Hallucination Enterprise Document Intelligence [Vol.1 #8A] – The schema is the contract: every field is a question the pipeline asks the model, and every answer is checkable Kezhan Shi Jul 4, 2026 31 min read Share Photo by Anna Tarazevich, via Pexels. This article opens the generation brick of Enterprise Document Intelligence, a series that builds an enterprise RAG system from four bricks: document parsing, question parsing, retrieval, and generation. Generation is the fourth and last brick. This is the first of its three parts: the contract, the typed answer schema the model has to fill.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Towards Data Science.
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