LLM Resources

Libraries

• OpenAI Python API library: Official OpenAI Python library.
• LangChain
• LangGraph
• Langflow

Evaluation

• Ragas
• DeepEval

Recommended links

• LangChain Introduction
• LangGraph Quickstart
• Workflows and Agents
• OpenAI News
• OpenAI Cookbook
• Prompt Management 101

Prompt engineering

• OpenAI: GPT-4.1 Prompting Guide
• OpenAI: Text generation and prompting

Prompt management

• LangFuse
• Prompty

Templates

• Mustache
• Jinja

Prompt structure

• Role with task context
• Tone context
• Background data to process
• Detailed task description and rules
• Examples (one-/few-shot prompting)
• Immediate data to process (short/long history)
• Thinking step-step / reason
• Output formatting (JSON, XML…)

Books

• Daniel Jurafsky & James H. Martin. Speech and Language Processing