How our employees use custom AI prompts in think-cell Assist

You did it again. You typed “make this sound more professional, but don’t change the content” for the second time in as many slides.

This is common for anyone working with AI for business slides. After just a few sessions, you notice you have recurring prompts, processes, and tasks. And that you’re typing the instructions from scratch every time. It’s just a few seconds every time but they add up.

That’s where think-cell Assist’s custom prompts come in. You save the prompt, and it shows up in your workspace as a button. It’s all there, ready to go, like a mise en place.

How to create a custom prompt

Custom prompts live within the Edit text feature, which handles most of the tasks that used to be repetitive. 

1. Click on “Edit text,” then on the gear button.
2. Scroll down to the bottom and click the plus button.
3. Name the button and clearly write or paste in your prompt.

Tap the gear button anytime to edit, hide or delete a custom prompt later.

To give you a sense of what is possible with think-cell Assist’s custom prompts, here are the top AI prompt examples that our employees use in their own presentation work.

1. Flag inconsistencies

2. Make it MECE

3. Sanitize

4. Shorten 50%

5. Elaborate 10-20%

6. Label every bullet

7. Refine for board-level audience

8. Write positive

9. Sentence case

10. Align with slide master

1. Flag inconsistencies

Check for inconsistencies in data, charts, or slides, across the entire presentation deck. Then flag them.

A hundred-slide deck is rarely the work of one person. Charts, tables, takeaways and titles are plopped into the deck from across the team. Not everyone has the bandwidth to check a 100-slide deck from start to finish.

This prompt is like spell check for your data. It spots mismatched datapoints and sweats the small stuff, like whether a period or a comma is used for a decimal. Trust takes a long time to build and one wrong number to lose it.

2. Make it MECE

Restructure to conform to the MECE principle (Mutually Exclusive, Collectively Exhaustive). Ensure that all points are mutually exclusive (no overlaps) and are collectively exhaustive (covering all relevant aspects of the topic) - make sure that topics that belong together are in one point and not in several places or appear more than once, and make sure that headlines and the content below them fit each other.

This prompt checks your content against MECE: mutually exclusive, collectively exhaustive. Businesses use it in brainstorming, problem solving, and project planning to develop effective solutions. It flags overlap between points, gaps in the logic, and categories that don't sit at the same level, then proposes a structure that holds up.

Running this cleans up the logic before anyone else sees it. And that’s the point. Structural problems are easy to fix now, but much harder to deal with in the boardroom.

3. Sanitize

Sanitize the text like this: Replace all product names with [PRODUCT], all person names with [PERSON], and all company names with [COMPANY]. The only company name that should remain the same as [INSERT YOUR COMPANY NAME].

Imagine you’re a consultant who has just completed a successful client project. The final presentation is packed with valuable insights that could help teams across your company, so you want to make it available in your internal knowledge database.

Using an AI text sanitizer prompt helps you quickly sanitize sensitive names from the content, making the presentation ready to share, reuse, and create value beyond the original project.

4. Shorten 50%

Make the text 50% shorter without losing the original meaning

Sometimes in professional slides, better writing means less writing. This prompt gets you there.

5. Elaborate 10-20%

Make the text 10-20% longer without adding any fluff or unnecessary words. Make it sound professional and native

Sometimes, you don’t need fewer words, but just a little bit more. This prompt adds a small amount without unnecessary padding. 

6. Label every bullet

Convert each bullet point into a new bullet using the format ‘Short label: One clear sentence.’ The label should be 1 to 3 words summarizing the core idea, followed by a colon. Then write one concise, professional sentence that captures the full meaning of the original bullet. Do not add new information. Keep the wording clear and natural, and maintain the same number of bullets as in the input.

Making slides scannable, and easy to mentally digest is one of the elusive challenges around building great slides. And, often it comes down to formatting tweaks to help your stakeholders scan the slide and get the point.

Adding a label in front of each bullet gives them the gist, and lets them know if they need to read the whole bullet or not.

7. Refine for board-level audience

Make this text fit for the target audience of board-level executives. Change any wording but keep the content and importance of points exactly the same.

When a board-level executive is presented with a slide, they’re usually scanning for a “so-what” rather than absorbing the details.

This prompt cuts down on the jargon and puts that “so what” upfront, so the slide respects their time and cuts to the point. A generic “make this more professional” prompt won’t capture that, naming the slides’ audience in the prompt will.

8. Write positive

Rewrite the following text in a more positive and constructive tone while preserving its original meaning and intent. Ensure the writing is polished, professional, and suitable for an executive audience. Use clear, concise, and confident language with the quality expected in board-level communications.

It’s all in the delivery. Imagine your team has identified several important risks that senior leadership needs to address.

This prompt helps you strike the right tone, turning critical messages into constructive, forward-looking communication that inspires action while keeping the facts clear.

9. Sentence case

Apply sentence case to the selected text and change nothing else.

This kind of prompt is worth having on hand. It’s dead focused on applying sentence case, but other conventions from your company's style guide can be added to the prompt.

In most business contexts, formatting and style rules tend to be strict. But inconsistencies creep in constantly, especially in longer decks. Fixing them by hand eats time and might not be complete. It takes one survivor to make it look sloppy.

10. Align with slide master 

Review the text formatting on the selected slide to match the PowerPoint master's brand standards — correct the colors, font sizes, and bold/italic styling and harmonize all of it.

Every slide relies on a slide master PowerPoint template. But sometimes the slide master gets ignored and little things creep in. When enough little things creep in, it becomes a big thing. Which doesn’t reflect well on you or whoever else must present the slides.

So, rather than going through a deck slide by slide and checking it against the master slides, you can run this prompt and fix any inconsistencies. You still give it a final check, but you’re not flicking back to your company’s brand standards every slide.

What makes the best AI prompts worth saving?

It’s worth stepping back to look at all these custom prompts.

Each one states the task, a constraint, and what shouldn’t change. “Make the text 50% shorter without losing the original meaning.” Or “Convert to bullets but don’t add any information.”

The last bit does some heavy lifting by providing focus to the prompt’s task. Without it, you might get a complete rewrite when all you asked was a formatting fix.

"Make this more professional" is a wish. "Make this fit for the target audience of board-level executives" is an instruction.

Conclusion

Copy these, paste them, save them. They’ll save you time.

But the custom prompt’s power is that you can make it yours. Your company’s style guide, naming conventions and internal expectations will be specific to you.

Use think-cell Assist for a few weeks and pay attention to what you retype. When you’re writing a prompt for the second time, that’s the one to save.

It takes about thirty seconds, and you never write it again.