The single difference between a prompt you copy once and a prompt you keep using is whether you can swap the parts that change.
Hardcoded prompts are recipes for a single dish. Once you finish that dish, the recipe is done. Variables turn the recipe into a technique — something you can apply to ten different ingredients without rewriting from scratch.
The pattern
Wherever a real prompt has something specific, write a variable instead:
Write a [TYPE] for [AUDIENCE] about [TOPIC]. The tone should be [TONE].
You'll find brackets in nearly every prompt on Promptboard. The detail page renders them as fillable inputs — so the prompt below the title isn't just text to read, it's a small form to run.
Why this is the whole game
Variables make a prompt:
- Reusable. Tomorrow's task is rarely identical to today's; the variables let you bridge the gap.
- Honest about what it depends on. If you can't extract a variable cleanly, that's a hint the prompt is brittle in ways you haven't noticed yet.
- Easier to share. A bracketed prompt is self-documenting. The reader sees what they need to fill in before they paste anything.
If your prompt has no variables, ask: what would I change about this next time? Make those the brackets.