Prompt engineering means writing and testing instructions so the AI gives reliably good results.
Illustration: AI-generated · AI Compare Ninja · CC BY 4.0
Example
You add “answer as a table with three columns” and immediately get a more useful result.
For pros
Proven techniques: clear roles, examples (few-shot), step-by-step guidance, fixed output formats and testing with several inputs. Reasoning models often need shorter instructions.
