Prompt Engineering and LLM Application Development
Chapter 1: Foundations of Prompt Engineering
Introduction to Large Language Models
What is Prompt Engineering?
Components of a Prompt
Basic Prompting Techniques
Understanding LLM Temperature and Other Parameters
Hands-on practical: Simple Prompt Experiments
Chapter 2: Advanced Prompting Strategies
Zero-Shot Prompting
Few-Shot Prompting
Instruction Following Prompts
Role Prompting
Structuring Output Formats (JSON, Markdown)
Chain-of-Thought Prompting
Self-Consistency Prompting
Practice: Applying Advanced Techniques
Chapter 3: Prompt Design, Iteration, and Evaluation
Principles of Effective Prompt Design
Managing Prompt Length and Context Windows
Iterative Prompt Refinement
Evaluating Prompt Performance
Automated Prompt Testing Approaches
Version Control for Prompts
Hands-on practical: Prompt Optimization Challenge
Chapter 4: Interacting with LLM APIs
Overview of Common LLM APIs (OpenAI, Anthropic, etc.)
API Authentication and Security
Making API Requests with Python
Understanding API Request Parameters
Processing API Responses
Handling API Errors and Rate Limits
Streaming Responses
Hands-on practical: Build a Simple Q&A Bot
Chapter 5: Building Applications with LLM Frameworks
Introduction to LLM Frameworks (e.g., LangChain)
Core Components: Models, Prompts, Parsers
Understanding Chains
Managing Memory in LLM Applications
Introduction to Agents
Using Tools with Agents
Hands-on practical: Develop an Agentic Application
Chapter 6: Integrating LLMs with External Data (RAG)
Limitations of Standard LLM Knowledge
Introduction to Retrieval Augmented Generation (RAG)
Document Loading and Splitting
Text Embedding Models
Introduction to Vector Stores
Implementing Semantic Search/Retrieval
Combining Retrieved Context with Prompts
Basic RAG Pipeline Implementation
Hands-on practical: Build a RAG Q&A System for Documents
Chapter 7: Output Parsing, Validation, and Application Reliability
Challenges with LLM Output Consistency
Prompting for Structured Data (Revisited)
Using Output Parsers
Data Validation Techniques (e.g., Pydantic)
Handling Parsing Errors
Implementing Retry Mechanisms
Moderation and Content Filtering APIs
Practice: Implementing Robust Output Handling
Chapter 8: Application Development Considerations
Structuring LLM Application Code
Managing API Keys and Secrets
Cost Estimation and Monitoring
Basic Caching Strategies
Testing LLM Applications
Simple Deployment Options (Serverless, Containers)
Hands-on practical: Containerizing a Simple LLM App
Application Development Considerations
Having experimented with prompts, interacted with APIs, and utilized frameworks to build the core logic of Large Language Model applications, we now turn to the practical considerations involved in developing and deploying these systems effectively. Building a functional prototype is one step; preparing it for sustained use requires attention to structure, security, cost, and operational aspects.
This chapter covers essential practices for taking your LLM application from concept to a more manageable and deployable state. You will learn about:
- Structuring application code for clarity and maintainability.
- Securely managing API keys and other sensitive credentials.
- Strategies for estimating and monitoring the costs associated with LLM API usage.
- Implementing basic caching to optimize performance and reduce expenses.
- Approaches for testing applications that incorporate LLM components.
- An overview of simple deployment options suitable for getting started, such as serverless functions or containerization.
The focus here is on the practical engineering aspects that support the reliable operation of your LLM-driven software.
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