LlamaIndex Installation Global Settings Documents and Nodes SimpleDirectoryReader IngestionPipeline (with caching + dedup) NodeParser Variants VectorStoreIndex and Query Engine Retriever + Response Synthesizer (explicit) Sub-Question Query Engine Router Query Engine Property Graph Index Agents with Tools (FunctionAgent / ReActAgent) LlamaParse Integration Observability (Callbacks) Arize Phoenix / OpenTelemetry Persistence and Reload Anti-Patterns | Anti-Pattern | Fix | |---|---| | Reindexing on every run | Use IngestionPipeline with docstore + cache | | Same for all queries | Tune per-engine,…