April 21, 2026 Smashing Newsletter: Issue #555
This newsletter issue was sent out to 176,540 subscribers on Tuesday, April 21, 2026.
Editorial
In times when we can build anything with AI, we need to clearly understand what we actually want to build. It’s not the idea, but rather the context around it — from problems to solve and features to design, all the way to how we build confidence and trust.
AI can’t resolve years of accumulated debt in code, design or content. If anything, it only surfaces underlying inconsistencies and amplifies them in its responses. To prevent it from happening, we need to apply a healthy dose of critical thinking. And that’s what this newsletter is all about.
Let’s dive into how to design for human oversight, how to establish design principles, how to design for trust — and for different modes of AI prompting.
Just last week, we wrapped up our lovely first SmashingConf in Amsterdam, and it was a truly magical and lovely experience with 450 people in attendance.
If you missed it, join SmashingConf Antwerp 2026 🍫 — focused all around UX, design, research, complex UIs, and design patterns for AI. With waffles, chocolates, and quite a bit of UX. Jump to all topics →
Also, here are a few upcoming online workshops, and some of them are launching this week:
- UX Leadership and Influence UX
with Joe Natoli. Apr 23 – May 7 - Cascading Style Systems: Resilient & Maintainable CSS Dev
with Miriam Suzanne. June 2–10 - Design Patterns For AI Interfaces UX
with Vitaly Friedman. Jun 16–30 - Naming Design Systems Design Systems
with Samantha Gordashko. Sep 8–22 - Live UX Training UX
with Vitaly Friedman. Sep 11 – Oct 12 - Accessibility For Designers UX
with Stéphanie Walter. Sep 21–29 - Jump to all workshops →
Thanks for being smashing, everyone!
— Vitaly
1. Four Modes Of AI Prompting
What are you actually trying to get done? That’s the crucial question we need to consider when we want to work smarter with AI tools. To help us address it, Tey Bannerman created the Four Modes framework. Whether it’s analyzing competitor activity, brainstorming ideas, or checking if a strategy actually holds together, the framework provides principles, prompts, and examples to effectively tackle different scenarios with the help of AI.
2. Designing For Trust
Trust in AI is a tricky topic. Some people are so skeptical of AI that they refuse to use it even when it could be genuinely helpful, while others follow AI recommendations on autopilot. So, how can we design for trust, without pushing people in either direction? According to Kristine K., the keyword is “calibrated trust.”
If you want to dive deeper into how to design, build, calibrate, and maintain user trust, be sure to also check out Vitaly’s free lesson on Maven and the accompanying Google doc with lots of resources for designing for trust and confidence in AI.
3. The Atlas Of AI Interaction
How can we create AI systems that are genuinely human-centered? The AI Interaction Atlas explores over 100 patterns, visual elements, and reusable components for crafting effective human-AI interactions. By giving teams a shared vocabulary to map roles, responsibilities, and decision points within AI systems, it helps uncover gaps and clarify responsibilities when designing complex, multi-step AI experiences.
4. UX And Product Design Challenges
Working through a design challenge on your own before turning to AI to quickly generate ideas and concepts sharpens your critical point of view and your design skills. If you want to stretch your problem-solving muscles a bit — or prepare for your next UX interview — Vitaly compiled UX challenges and product design exercises, as well as tips for working through them.
5. Practical Guide To Design Principles
“Design should not be a matter of taste; it must be guided by our goals and values.” Design principles help us achieve exactly that. As Vitaly argues, they avoid endless discussions and rally a team around a shared purpose. In his practical guide to design principles, he dives deeper into why design principles matter and how to run a workshop to establish your own set of principles.
6. Five Levels Of Context Engineering
Context is key to reducing the hallucinations and broad assumptions that AI is known for. So, how can we “onboard” AI in a way that gives it just enough context to tackle a task effectively? Matthew Alverson suggests five levels of context engineering to help construct a model’s context window and thereby enhance its output.
7. Designing Human-AI Oversight
Whether it’s job applications that get rejected by algorithms before recruiters ever see promising candidates or customer service bots that frustrate instead of giving agents the context to actually solve problems, a lot of AI implementations fail at giving humans the authority, time, and understanding they need to be genuinely effective. To help us do better, Tey Bannerman shares a framework for designing human-AI oversight that actually works.
8. Accessible UX Research, Now Shipping 📚
We’ve got exciting news! Our newest Smashing book, Accessible UX Research by Michele A. Williams, is finally shipping worldwide! Get the book right away or order the eBook for instant download.
Accessible UX Research is your practical guide to making UX research more inclusive of participants with different needs — from planning and recruiting to facilitation, asking better questions, avoiding bias, and building trust. Download a free sample (PDF, 2.3MB) or get the book right away.
9. Upcoming Workshops and Conferences
That’s right! We run online workshops on frontend and design, be it accessibility, performance, or design patterns. In fact, we have a couple of workshops coming up soon, and we thought that, you know, you might want to join in as well.
As always, here’s a quick overview:
- UX Leadership and Influence UX
with Joe Natoli. Apr 23 – May 7 - Cascading Style Systems: Resilient & Maintainable CSS Dev
with Miriam Suzanne. June 2–10 - Design Patterns For AI Interfaces UX
with Vitaly Friedman. Jun 16–30 - Naming Design Systems Design Systems
with Samantha Gordashko. Sep 8–22 - Live UX Training UX
with Vitaly Friedman. Sep 11 – Oct 12 - Accessibility For Designers UX
with Stéphanie Walter. Sep 21–29 - Jump to all workshops →
That’s All, Folks!
Thank you so much for reading and for your support in helping us keep the web dev and design community strong with our newsletter. See you next time!
This newsletter issue was written and edited by Geoff Graham (gg), Cosima Mielke (cm), Vitaly Friedman (vf), and Iris Lješnjanin (il).
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