UX Insights - User Experience Leadership and Strategy podkast

Why Designers Should Welcome AI Prototypes

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“I have mocked up something with Claude Design.” It’s a phrase that can send shivers through a UI designer. It feels like the modern equivalent of “Make my logo bigger” or “I want everything above the fold.” And I can understand why.

I have encountered designers who are pushing back hard on clients and colleagues creating their own prototypes with AI. But, I think these prototypes can be a gift to designers, provided we help people understand what they are looking at.

Why designers are right to be concerned

Let’s start by acknowledging that the pushback is often entirely reasonable. When someone has a prototype they can click through, it can look as if the finished product is only a few small tweaks away. The buttons work, the screens look polished, and it all seems rather convincing.

Unfortunately, looking finished and being ready to launch are very different things. The prototype may need accessibility work, testing with real users, integration with other systems, and a good deal of attention from designers and devs before it’s ready for the world.

If the person who made it assumes all of that has already been taken care of, the designer is left explaining why the “nearly finished” project still needs time and money. I can see why that conversation might make you want to hide under your desk.

But, in my experience, fighting a trend like this rarely gets us very far. Clients and colleagues are going to create prototypes whether we like it or not, so we might as well help shape how those prototypes are used.

A useful glimpse inside someone else’s head

One of the hardest parts of working with stakeholders has always been understanding what they are imagining. They have expectations about the website or application they want, but those expectations often stay in their heads until we show them a design.

Then they know it isn’t quite right, even if they struggle to explain why. We make changes, show them another version, and sometimes find ourselves heading into yet another round of revisions without being much clearer about what they wanted in the first place.

A prototype they have created themselves gives us something to discuss from the beginning. They have already spent time exploring ideas and iterating with AI, so we can see the features, content, and interactions they had in mind instead of trying to extract every detail from a vague brief.

I would treat that prototype as a functional specification. It can show what someone believes the product should do and give us a starting point for agreeing on scope. It won’t capture every requirement or eliminate changes, but it can expose assumptions earlier and help avoid the sort of scope creep that begins with “I thought that was included.”

Of course, a stakeholder’s idea of what users need is still an assumption. We should test those assumptions rather than treating every screen as an instruction to be followed. A functional specification is a starting point for a conversation, not a substitute for user research or design judgment.

Change the conversation around the prototype

The language we use can help set expectations. When someone shares their prototype, try calling it a functional specification prototype and thank them for the work they’ve put into it. They’ve given you something much more useful than a meeting where everybody waves their hands and says they’ll know what they want when they see it.

You can then explain what happens next. The prototype shows the proposed functionality and gives the team a shared reference, while the design still needs to be reviewed, tested, refined, and prepared for development. Agree on what is in scope and what remains open before anyone starts planning the launch party.

Ask questions about the choices they made. Why did they put that feature there? What were they hoping the user would do next? What happens if the user can’t provide the information the form asks for? These questions help you understand their thinking and uncover problems without making the person feel as if they’ve been sent to the headteacher’s office.

If the text is too small or the color contrast looks questionable, you could ask, “Did you ask the AI to check for accessibility? That would be worth doing, and we can review it together.” Of course, an AI check can help identify issues, but it doesn’t replace a proper accessibility review or testing with people who use assistive technology.

You can direct criticism at the AI, too. “Claude has a habit of adding those little eyebrow labels above headings, and they aren’t always needed,” is a rather easier conversation than “Why on earth did you put that there?” You’re helping your colleague get more from the tool, while keeping the discussion focused on the design.

Give people better tools to work with

We can go further than reviewing whatever the AI produces. We can make it easier for people to produce a better starting point in the first place.

If you work in-house, make your design system available to colleagues who are prototyping, so they can give the AI the styles and components it needs to work within your organization’s visual language. Agency designers may not always have access to a client’s system, but where one exists, it is worth asking for it.

A collection of components alone won’t do the whole job, though. The AI also needs guidance on when and how to use them. When should it use a checkbox rather than a radio button? When is a dropdown appropriate? What should an error message say, and where should it appear? The more of that thinking you can document, the less you have to rely on the AI guessing.

You can provide skills containing UI guidance, too. These might be written for your organization, or you could look at an existing option such as Impeccable, which provides design guidance for supported AI coding tools. Check whether a skill works with the tool your colleagues use before sending them off to install it.

And don’t forget the context around the design. Information about your organization, its tone of voice, its audience personas, and the problems people are trying to solve can all help the AI produce something more relevant. A polished interface built around the wrong audience is still going to cause you a headache, however lovely the buttons look.

So where does that leave designers?

I suspect some of the resistance comes from a reasonable question. If product owners, marketers, and clients can all create prototypes, what happens to the UI designer?

For a start, somebody needs to create and maintain the design system, the usage guidance, and the skills that help people produce better work. Those things need to be adapted as the organization and its users change, and designers are well placed to shape them.

Then there is the work of making an interface genuinely good. Designers can spend less time translating a vague brief into a first set of screens and more time questioning assumptions, testing with users, improving accessibility, and refining the details. That might mean simplifying a confusing journey or adding the small design delighters that make an experience feel considered.

I am not suggesting that every AI prototype will be adequate, or that every team will suddenly give designers more time to polish. But, I do think we have a better chance of influencing the outcome if we engage with the work people are already doing.

So, the next time a colleague brings you an AI prototype, thank them and ask them to talk you through it. You might still have to explain why the launch isn’t next Tuesday, but at least you’ll have something concrete to talk about.

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