Which tool to choose
To start, a simple text file or a notes app is enough: you paste your prompts there and reuse them with copy-paste. If you want something more convenient, many AI tools offer a library of saved prompts or personal instructions, where you store the recurring roles. For those who work in a team, a shared document keeps everyone aligned on the same templates. Start from the text file: it's immediate and doesn't tie you to any platform. Move to the built-in features only when the prompts become many.
How to do it
- Identify the prompts you repeat. For a week, every time you get a good result, save the prompt that produced it. The ones that recur are the candidates to become templates.
- Break the prompt into fixed parts and variable parts. The structure stays; what changes each time becomes a placeholder. The operational syntax for a professional email template:
Act as an assistant who writes clear and courteous work emails.
Write an email to [RECIPIENT] for [PURPOSE OF THE EMAIL].
Tone: [formal / friendly / direct].
Include these points: [POINT 1], [POINT 2].
Maximum length: [NUMBER] lines. Answer in Italian.
- Use obvious placeholders. Square brackets with the text in capitals ([RECIPIENT]) stand out at a glance: no risk of leaving one unfilled.
- Add the instructions you always forget. Put in the template the constraints you usually forget: "don't invent data", "answer in Italian", "ask me for what's missing". This way they apply every time without rewriting them.
- Give each template a name and collect them. "Client email", "Meeting summary", "Social post": a clear title to find them again. Keep them in a single file divided into sections.
A concrete example
You manage the replies to a shop's reviews. Every time you rewrote the prompt from scratch, with different results. You create a single template: "Act as the shop owner. Reply to this review: [REVIEW TEXT]. Rating: [NUMBER OF STARS]. Acknowledge the specific point, thank, no clichés, maximum five lines, warm and professional tone." From then on you paste the review into the placeholder and get replies that are consistent with each other, in the same style, in a few seconds. When you find a better wording, you correct it in the template once and it applies to all future replies. The work done once works for you every day.
When it does NOT work (and how to fix it)
If the template gives flat results on particular cases
A template covers the typical case, not every exception. Fix: keep it as a base and add the specific instruction by hand when the case requires it ("...this review, however, alleges a serious hygiene problem: take it seriously and don't downplay it").
If you end up with dozens of templates and can't find the right one
The library grows and becomes chaotic. Fix: group them by area (work, social, study), put the three you use most at the top, and delete the ones you haven't opened in months. A small, curated set beats a bloated archive.
If the same template works well on one tool and badly on another
AI models react a little differently to instructions. Fix: keep the template generic and, if you change tools, run a test and tweak the constraints that aren't respected, instead of taking for granted that it works identically everywhere.
A tip from someone who really uses it
The value isn't in the perfect template written at a desk, but in improving it with each use. When a saved prompt gives you a slightly wrong result, don't just fix that answer: correct the template. After a month of small corrections you'll have a handful of sharp prompts that produce what you want on the first try. It's an investment that pays for itself, one placeholder substitution at a time.
Frequently asked questions
Where is it best to save my prompts?
For maximum freedom, a text file or a notes app that you open anywhere: you don't depend on a platform. For convenience, the saved-prompts features or the personal instructions of the tool you use most. Many keep both: the file as the main archive, the personal instructions for the two or three daily roles.
How many placeholders should I put?
Only the ones that really change every time. Too many placeholders make the template tiring to fill in and remove the speed advantage. If a value is almost always the same, write it fixed in the template and change it by hand in the rare different cases.
Does always using the same templates flatten the results?
That's the risk only if you never update them. A static template produces repetitive results; a template you correct when it goes wrong improves over time. And nothing stops you from starting from the template and then adding the case-specific touch by hand: the template is a springboard, not a cage.