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Module
Module 3 of 6Lesson 2 of 3~15 min

Write a production system prompt

The system prompt sets the assistant's behavior on every exchange, and a sloppy version shows up as inconsistent answers. This lesson teaches you to write and review a production-grade system prompt, while knowing exactly what it can never guarantee on its own.

Lesson objective

By the end of this lesson, you will be able to write and critique a structured system prompt (role, context, rules, uncertainty handling, format, edge cases) and explain what it cannot guarantee.

Topics covered

  • system prompt
  • prompt engineering
  • AI assistant
  • system instructions
  • LLMs in production

In the glossary

Full glossary

Where it fits

Design the experience and behavior

How should the assistant present itself, answer, say "I don't know" and hand over?

Lessons in this module

  1. Design the conversational experience
  2. Write a production system prompt (this lesson)
  3. Specify the response format for the interface

What you will learn in this module

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

  • Design the conversational experience: entry point, tone, handling uncertainty, handoff to a human and response format.