Two colleagues can use the same AI assistant on the same task and get wildly different results. The difference is rarely the tool. It is the instructions. Prompt design sounds technical, but at its heart it is the same skill as briefing a capable new team member: explain the situation, say what you want, describe what good looks like and check the work. Teams that learn this together get far more value from AI.
Think of a brief, not a search query
People often type into AI tools as if using a search engine: a few keywords and a question mark. That produces generic output. A useful prompt reads more like a short brief. It typically includes:
- Role and context: who the audience is, what your business does, why the task matters
- The task: precisely what you want produced
- Inputs: the material to work from, such as notes, data or a document
- Constraints: length, tone, words to avoid, facts that must be included
- Format: bullet points, a table-like list, an email, a set of headings
Compare "write a product description for our kettle" with a prompt explaining the kettle's features, the target customer, your brand's tone, the desired length and the need to avoid unverifiable claims. The second will need far less editing.
Show, don't just tell
Examples are one of the most powerful tools in a prompt. If you want replies to customer reviews in a particular style, include two or three replies you are happy with. If you need data in a specific structure, show one completed example. AI models are very good at following patterns they can see.
Break big jobs into steps
Asking for a complete report in one go often gives shallow results. Instead:
- Ask for an outline and review it.
- Ask for each section separately, with specific notes.
- Ask the AI to check the draft against your requirements.
- Edit and finalise yourself.
Splitting work also makes errors easier to spot, because each piece is smaller.
Ask the AI to be honest about uncertainty
Instruct the model to say when information is missing rather than guess, to base answers only on the material provided, and to flag assumptions. Phrases like "If the answer is not in the document, say so" reduce invented details. Still, always check facts that matter.
Iterate, then save what works
Rarely is the first prompt the best. Treat output as feedback: if the tone is too formal, say so; if key points are missing, add them to the instructions. When a prompt reliably produces good results, save it.
A shared prompt library is one of the most valuable things a team can build. For each saved prompt, record:
- What task it is for
- The full prompt text, with placeholders for variable details
- An example of good output
- Who maintains it and when it was last tested
This turns individual skill into team capability and makes quality more consistent.
Protect sensitive information
Good prompt habits include good data habits. Avoid pasting personal data, passwords, confidential contracts or unreleased financial information into tools that are not approved for it. Use anonymised examples where possible, and follow your company's AI policy.
When prompts are not enough
If your team repeatedly pastes the same information into prompts, or needs AI output to flow into other systems, you may have outgrown manual prompting. That is the point where a custom tool, with prompts built in and connected to your data, makes sense. Our AI and automation team builds such tools, and our broader services page shows how they fit with other software work.
FAQ
Do longer prompts always work better?
Not always. Clear and specific beats long and rambling. Include what matters for the task and remove anything that could confuse.
Do prompts work the same across different AI tools?
The principles carry over, but each model behaves slightly differently. Test important prompts in the tool you actually use.
How can we train staff in prompt design?
Run a short workshop using real tasks from your business, compare results from different prompts and start a shared library from the best ones.
Next step
Export Apps can run practical AI sessions for your team or build tools that bake good prompts into everyday workflows. Contact us to find out more.