The one prompt behind Opus 5.5's viral video wave

If you have seen those Opus 5.5 motion-design videos on X, you have probably gone digging for the prompt in the replies — and wondered whether it would even work when you run it. Skillry, a marketplace of skills for AI agents, has collected them into one gallery: as of September 28, 2026, its Opus 5.5 videos page lists 389 entries, each with the original prompt next to a remake Skillry ran on the same model, playable side by side.

The range is wide: a 0:10 logo reel at one end, a 6:23 1990s demoscene written in C/C++ with an S3M soundtrack at the other; @MandelDuck built a cat-spotting game inside Van Gogh’s Starry Night, and @itsolelehmann made the seasons change outside a train window. By category, that is 223 motion graphics, 68 games, 51 3D scenes and 47 explainers.

The prompt everyone reused

Scroll a few pages and one line keeps coming back:

make a dynamic 15-second motion graphics video that shows what an incredible motion designer you are, like it’s your showreel for a résumé. go all out.

@kenn, @codeSTACKr, @ajith_io and a wave of others pasted it verbatim; others swapped the ending for their own site or product. The mechanism is worth noticing: this is not a requirements list, it is an identity challenge. “Showreel” carries its own expectations — pack several styles and transitions into fifteen seconds — and the model has seen thousands of them, which beats any adjectives you would write by hand. “Go all out” handles the rest. Ask the model to show off and it delivers; ask it to “make a video” and you get the floating-and-scaling default.

Structured prompts

Other entries go full engineering. @twoclipping’s template opens with an <inputs> block that makes the model ask for 8–12 UI states (button, loader, player, slider, toggle, tabs, chart, command palette, toast), a color scheme and a royalty-free track around 120 BPM; @verbove’s <rules> are pure constraints — “One HTML file. One canvas”, “No CSS transitions”, “No timers”, “Real UI. Real data. No placeholders” — one shape morphing through real UI on a beat grid. That is the same direction as our Opus 5.5 game-VFX prompt breakdown: constrain the implementation, not the mood.

What the remakes are for

Every prompt collection has the same flaw: you cannot verify it. The poster may have tweaked settings or edited the footage. Here each detail page plays the original and Skillry’s remake side by side — hit “Play both” and the gap is instantly visible. A small gap means the prompt holds up; a large one means the original had post-processing, or the line leans on the model harder than it looks. Each entry also tags its stack (Canvas, SVG, GSAP, Three.js, GLSL, AI image), so you can filter pure code from entries that lean on AI-generated assets.

Try it in a minute

1. Open the gallery and filter by category or stack.
2. Open any card, hit “Play both” to check the remake, then “Copy prompt”.
3. Paste it into Opus 5.5 and you get a single-file page that plays on open. To make it yours, swap the subject of the showreel line: an incredible front-end engineer, a data-visualization designer, and so on.

That line leans on long-horizon execution — exactly what Opus 5.5 launched with. Weaker models fold under “go all out” and fall back to their defaults.

Caveats

• The remakes are Skillry’s own runs, not licensed copies of the originals — you are comparing prompts, not authorship.
• The prompts come from creators’ X posts and the gallery claims no redistribution license, so this piece discusses the patterns rather than republishing the structured templates in full.
• Skillry itself is a paid skills marketplace and the gallery is its content front door; browsing is free, but check its pricing page before assuming anything else is.