← The course · Building 17 / 20

GuideSeptember 13, 20261 min readIntermediate

Use AI tools to build one piece at a time

Give the coding tool a precise task and check the behavior it produces.

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What you will learn

Give the coding tool a precise task and check the behavior it produces. This is a draft lesson outline for the course preview.

The idea

A useful coding request describes the behavior, the input shape, and an example of the expected output. Ask for one small part of your specification, then inspect and run it before requesting the next part.

A small example

A sample prompt: write a pure function that accepts a list of numbers and returns the average of the last three, or null when there are fewer than three. Include examples for an empty list and a complete window.

Try it yourself

Choose one function from your plan. Write the expected answers for three small inputs before asking an AI tool to implement it. Compare its output with your hand-worked examples.

Before you move on

Do you understand every input and output? Is the code making any choice that you did not put in the specification?

Use Next lesson below to continue the course, or return to the course overview.