Fix Lost-in-the-Middle RAG in Python: Reorder Context with LlamaIndex

RAG often retrieves the right evidence but buries it in the middle — LlamaIndex LongContextReorder fixes context order so crucial facts sit at the model’s attention edges. Learn a compact Python workflow that reorders retrieved chunks, uses NodeWithScore and SimilarityPostprocessor to filter and pack context, and improves answer reliability for helpdesks, legal search, or QA. Demo shows how to keep retrieval scores intact while moving high-value evidence to the edges before synthesis. Subscribe for practical AI engineering and LLM system tutorials. #RAG #LlamaIndex #LongContextReorder #LLM #AIEngineering #PythonTutorial