Agent Frameworks

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Systems that enable LLMs to take actions, use tools, and interact with external systems. Extend LLMs beyond text generation into autonomous task completion.

Key Frameworks

  • LangChain — composable chains, agents, tools, memory
  • LlamaIndex — data framework for RAG and agents
  • Function Calling — structured tool use via API (OpenAI, Anthropic)
  • Tool Use — LLM decides when and how to use external tools

nlp llm agents tool-use