- Title: Understanding LLM Principles: Context Engineering from RAG and Agent Development - Author: Hiroki Gamou - Content: Explanation of LLM principles, RAG, and agent development - Keywords: AI, Engineering, Skills - Release Date: 2026/2/10 - Price: ¥3,300 (tax included) "How to handle context, which influences the behavior of LLMs" - The most important skill for engineers in the AI era "Context" is the diverse input information, including prompts, given to Large Language Models (LLMs). To properly control the behavior of LLMs, what kind of context should be constructed? What to provide, what to discard, and how to maintain good conditions within the limited input area – the entirety of this technology is "Context Engineering," and it is the most important topic that engineers aiming to utilize LLMs should know. This book unravels the basic mechanisms of AI models and the behavior of APIs from the perspective of context, and fully introduces context engineering techniques that can occur in practical development such as RAG (Retrieval-Augmented Generation) and AI agents.