Evaluating Prompts Like an Engineer

Any modelFundamentals From a course

A prompt is good when it performs consistently, not when one output impressed you.

The prompt

Here are 2 versions of a prompt and 5 test inputs. Run each version mentally against each input. Build a table: input × version → predicted weakness (if any). Then recommend which version ships and what single change would most improve it.

Version A: [PASTE]
Version B: [PASTE]
Test inputs: [LIST]

What to replace

Swap these placeholders for your own details before running the prompt:

[PASTE]your own value
[LIST]your own value

Pro tip: Save your test inputs. Every time a prompt fails in production, add that case to the eval set — it compounds.

How to use this prompt

Copy the prompt using the button above.
Replace [PASTE], [LIST] with your own details — the more specific you are, the better the output.
Paste it into Any model and run it.
If the answer feels generic, add constraints: audience, length, tone, and what to avoid. That single change fixes most weak output.

Learn the technique

Evaluating Prompts Like an Engineer

Module 5 — Expert: Prompt Systems · Prompt Engineering Fundamentals

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