You do not have to be a professional developer to get real value from AI when writing code. The right prompt can help you write a function, find a bug, understand unfamiliar code, or learn a new language faster.

These templates work in ChatGPT, Claude, Gemini and other AI assistants. Replace the [bracketed parts] with your own details.

Golden rule: Always tell the AI the language, the goal, and any constraints. Pasting the exact error message and the relevant code gets far better answers than a vague description.

🧩 Writing Code

1. Write a function

Write a [language] function that [what it should do]. Inputs: [inputs]. Output: [output]. Handle edge cases such as [edge cases] and add short comments explaining the logic.

2. Build a small script

Write a [language] script that [task, e.g. renames all files in a folder]. Explain how to run it step by step as if I am a beginner.

3. Convert between languages

Convert this [language A] code to [language B] and keep the same behavior. Point out anything that works differently: [paste code]

🐞 Debugging

4. Fix an error

I get this error: [paste error message]. Here is the relevant code: [paste code]. Explain what is causing it in plain English, then show the corrected code.

5. Find bugs in my code

Review this code for bugs, logic errors and unhandled edge cases. List each problem, why it matters, and a suggested fix: [paste code]

6. Why is my code slow?

This code runs slowly with [size of data]. Identify the likely bottlenecks and suggest a faster approach while keeping the output identical: [paste code]

📖 Understanding & Learning

7. Explain this code

Explain what this code does line by line in simple language, then summarize it in two sentences: [paste code]

8. Explain a concept

Explain [concept, e.g. recursion] to a beginner using a simple analogy and a small [language] example. Then give me one exercise to practice.

9. Create a learning plan

I know [current level] and want to learn [language/skill] to [goal]. Make a 4-week plan with weekly topics and one small project each week.

🛠️ Clean-Up & Quality

10. Refactor for readability

Refactor this code to be cleaner and easier to read without changing what it does. Explain each change briefly: [paste code]

11. Write tests

Write unit tests for this [language] function using [testing framework]. Cover normal cases, edge cases and error cases: [paste code]

12. Add documentation

Write clear documentation comments for this code, including parameters, return values and a short usage example: [paste code]

13. Write a regex or SQL query

Write a [regex/SQL query] that [goal]. Here is a sample of my data: [sample]. Explain how it works piece by piece.

Never trust code blindly. AI can produce code that looks right but is subtly wrong or insecure. Run it, test it, and understand it before using it in anything important. Never paste passwords, API keys or private data into a chat.

Looking for dedicated tools instead? See our list of the best AI coding tools.

Frequently Asked Questions

What is the best AI prompt for coding?

Be specific: name the language, describe the goal, list inputs and outputs, and paste any error messages. The more context, the better the code.

Can ChatGPT or Claude write code for me?

Yes, both can write and explain code in many languages. They are best used as a fast assistant. Always test the result yourself.

Can beginners learn to code with AI?

Yes. Asking AI to explain code, give exercises and review your attempts can speed up learning, as long as you still write and run code yourself.

Write better prompts everywhere: Start with our prompt engineering guide for beginners.