Impeccable is the design skill I already use to make AI-built pages look less AI-built. Then Hallmark showed up, a new skill from Together AI that promises pages that look “made, not generated.” It even lists Impeccable as an inspiration.
As with most recently discovered repos, Hallmark was getting all the hype and making Impeccable seem like old news, so I ran an A/B test to see how they compare. Same brief, two builds, and each skill ran its own checks and reviews. I used Block Bits, my plugin1 that brings reactbits.dev animations to core blocks, because it’s real and it has an honest gap2 between what’s planned (27 effects) and what’s shipped (one).
I put the results into an interactive Hallmark vs. Impeccable comparison on Spacefast, where you can explore the charts, compare the builds side by side, and copy any visual as an image to share.
Round one: a landing page
Hallmark built a calm, card-stock page where the hero shows Shiny Text running next to its settings. This seems a bit more “no frills” and like traditional web design, especially as a SasS promo page. Impeccable built a sign painter’s shop: gold leaf, enamel boards, and every effect hanging on a pegboard with a work-order tag that flips to show its markup. Impeccable’s is the one you’d remember, it’s a bit flashier. Hallmark’s is the one that explains the plugin faster, which is probably where I’d land in this use case.
Round two: the settings screen
A complex plugin deserves a formal plugin settings page in WordPress Admin, and this is another good test to see how the skills compare at mocking up that experience. Both skills landed on almost the same screen, and both made the same call: no switches for the 26 effects that don’t exist yet, because a switch you can’t use still makes a claim. Impeccable’s version looked closer to WordPress, and I forgot I was looking at a mockup at first glance3.
What I noticed
Hallmark has strict rules: no small caps in labels, no eyebrow text over headings, about 80 words per screen. Some of those push on my own habits. I’m open to that when it makes the work more elegant and usable. Its rules also fought wp-admin’s own conventions4, which is a good reminder that a checker’s opinion isn’t the same as the host’s.
Impeccable reaches further. It picks a bold direction and runs with it, and its reviewer actually re-checks the fixes. It also needed more babysitting to finish.
My recommendation
Both skills are good, and I’m keeping both. Hallmark is my pick for building something new, and that includes UI; I’ve used it for some marketing tools on Spacefast, and it handled the interface well. Impeccable is my pick for working inside something that already exists, like wp-admin, a design system, or a page that needs polish. They also work well together: let Hallmark build it, then let Impeccable critique and refine it. The hard part is remembering which one to call, so I’m building a way for each project to pick its own skills.
- I say plugin, but I haven’t worked on it in forever, it’s not really ready to be released, and I know I can do a much better job rebuilding this thing now with frontier AI models. ↩︎
- See, I told you. If you read the footnotes, you’re one of the lucky people to read the good stuff. ↩︎
- The icons in the sidebar gave it away. They are obviously not the correct icons. It’s crazy that you get accustomed to looking at something and gloss over it. ↩︎
- I would never rely on just a design skill for WP Admin. I’d use the real WordPress components skills. This does show how good AI design is without telling it to use WordPress components specifically, though. ↩︎
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