llamaindex

SKILL.md

| Index 100 docs | 10-30s | One-time, can persist | | Query (vector) | 0.5-2s | Retrieval + LLM | | Streaming query | 0.5s first token | Better UX | | Agent with tools | 3-8s | Multiple tool calls |

| Best for | RAG, document Q&A | Agents, general LLM apps | | Data connectors | 300+ (LlamaHub) | 100+ | | RAG focus | Core feature | One of many | | Learning curve | Easier for RAG | Steeper | | Customization | High | Very high | | Documentation | Excellent | Good |

Data framework for building LLM applications with RAG. Specializes in document ingestion (300+ connectors), indexing, and querying. Features vector indices, query engines, agents, and multi-modal support. Use for document Q&A, chatbots, knowledge retrieval, or building RAG pipelines. Best for data-centric LLM applications. Source: orchestra-research/ai-research-skills.

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