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Module
Module 2 of 6Lesson 3 of 3~12 min

Understand the anatomy of an LLM assistant

Behind a simple chat window sit several building blocks, and each one carries product decisions a PM needs to understand. This lesson helps you explain to your team what happens when a user sends a message to an LLM assistant, and identify where quality, cost and risk are decided.

Lesson objective

By the end of this lesson, you will be able to explain to a team what happens on every message (application, system prompt, history, context, tools, model) and to locate where each product decision is made.

Topics covered

  • how LLMs work
  • AI assistant
  • system prompt
  • context window
  • assistant architecture

Where it fits

Frame the assistant

Does my product need an assistant, and to do what exactly?

Lessons in this module

  1. Identify a use case worth an assistant
  2. Write the framing brief
  3. Understand the anatomy of an LLM assistant (this lesson)

What you will learn in this module

This lesson is part of the course Build an AI assistant for your product

  • Identify a use case that justifies an AI assistant and write its framing brief (problem, users, allowed actions, out of scope, success criteria).
  • Choose and justify a knowledge strategy (instructions, injected context, RAG, fine-tuning) and a conversation memory strategy.