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1. What is a prompt?

Welcome to Prompt Engineering! In this lesson you will learn what a "prompt" is and why a well-written prompt makes AI assistants far more useful. No coding experience is needed.

An AI assistant — like the ones powering this app — is a computer program that understands text you write to it and gives a helpful reply. Think of it like sending a text message to a very knowledgeable friend.

You open a chat, type something, and the AI replies. That text you type is called a **prompt**. Every interaction you have with an AI starts with a prompt.

promptAI
A prompt travels from you → to the AI → and back as a response.

Imagine Abebe runs a small shop in Merkato, Addis Ababa. A customer walks in and says only: "Give me something."

Abebe has no idea what they want. He might bring flour, or a phone charger, or a pencil. The customer is disappointed because the instruction was too vague.

Now the customer says: "Give me one kilo of white teff flour, please."

Perfect — Abebe finds exactly the right item. The second request is a better **prompt** because it is specific, clear, and complete.

When you write a prompt for an AI, the same rule applies: the clearer your instruction, the better the result.

A clear prompt usually answers these four questions:

1. **What do you want?** — the main task ("Write", "Explain", "Translate", "Summarise").

2. **For whom?** — the audience ("for a 10-year-old", "for a business owner").

3. **In what format?** — how the answer should look ("as a bullet list", "in one paragraph").

4. **Extra details** — any helpful context (topic, tone, length).

You do not need all four every time, but the more you include, the closer the answer will be to what you actually need.

Scenario

Sara wants to use AI to help her write a message to her telebirr customer support. Which prompt will give the most useful reply?

A prompt is different from a search-engine query. When you search on Google you type short keywords: "Addis Ababa weather". With an AI assistant you can write full sentences, ask follow-up questions, and even have a back-and-forth conversation.

You can tell the AI: "Explain to me like I am 12 years old how mobile banking works" — and it will adjust its language to be simple. Try that with a search engine!

Start simple. Even a one-sentence prompt is better than nothing. As you progress through this course you will add layers — roles, examples, and step-by-step instructions — to make your prompts even more powerful.
Lesson recap: A prompt is the text instruction you give an AI. Vague prompts give vague answers. Clear, specific prompts — stating the task, audience, format, and details — give the most useful responses. In the next lesson you will learn how to add a role to your prompts.

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What is a prompt in the context of AI assistants?