Loop Engineering for RAG Question Parsing: The Small Loop That Runs Before Retrieval

Loop engineering enhances Retrieval-Augmented Generation (RAG) by building iterative cycles around an LLM to resolve ambiguity before retrieving information. A core technique is the "small loop" in question parsing, where the system detects when a user's query is vague or does not match the document's structure. Instead of performing a broad and potentially inaccurate search, the system pauses to ask the user a direct clarifying question, such as which document section to look in. This single interactive turn provides the missing context needed to perform a highly targeted search, dramatically improving