Sprite Animation Skill
SkillDocs & knowledgeLets your agent build a pixel-art animated explainer slide with a mascot, bold year display, and ticking timeline.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Sprite Animation Skill skill
About this capability
A pixel / sprite-style animated explainer slide — full-bleed cream stage, bold display year, animated pixel-art mascot (e.g. Hanafuda card, mushroom, or 8-bit console), kinetic Japanese display type, ticking timeline ribbon. Reads like a single frame of an educational motion video — looping CSS keyf
What this skill tells your AI
The instructions your AI receives, as published by nexu-io/open-design in design-templates/sprite-animation/SKILL.md and read by ahel’s review.
Produce a single animated frame of an educational explainer — the kind you might screen-record into a vertical video. Pixel-art mascots, big year display, looping CSS animations, kinetic Japanese / English display type.
Workflow
- Read the active DESIGN.md (injected above). Pick the loudest serif token for the year, a sturdy sans for headlines, and a mono token for timeline / index labels.
- Pick the topic from the brief (e.g. "Nintendo · 1889 — Hanafuda"). You always need: a year, a one-line headline, an animated subject (a pixel sprite — character, object, or icon), and a short caption.
- Stage — full-bleed cream / off-white background (
#f5efe2) with a subtle paper grain. Keep margins generous; this is one beat of a video. - Top bar — small mono row:
- Left: title slug ("名次の/番組" or "EP. 01 / NINTENDO")
- Right: progress dots ("01 / 12") and a "REC" stamp
- Subject animations — at least three independent looping animations
on the page:
- Big year: the headline year (e.g. "1889年") fills the lower-left, in a serif display weight. It has a subtle vertical glitch / scanline animation (clip-path keyframes), and a 1-frame "pop" every loop.
- Pixel sprite card: a 96×128 pixel-art card or character (use an
inline SVG with crisp
shape-rendering: crispEdgesrectangles, or abox-shadowpixel grid). Subtle bobbing animation (±4px, 1.6s). - Kinetic kana: 1–2 Japanese / kanji characters that fade-and-slide in sync with the bob (e.g. "花" — hana — flower).
- Tick ribbon: bottom of the stage, a tape/ribbon with year ticks (1889 · 1907 · 1949 · 1977 · 1985 · 2006 · 2017) sliding left at a slow constant speed.
- Caption block — small mono caption explaining the trivia: "Nintendo started as a Hanafuda playing-card maker in Kyoto, 1889. Mario didn't show up for another ninety-six years."
- Write a single HTML document:
<!doctype html>through</html>, CSS inline, no external JS.- All animations use
@keyframes+animation: ... infinite. - Stage uses a fixed canvas ratio (e.g. 16:9 letterboxed) so the loop reads as a single frame from a video.
data-od-idon stage, year, sprite, caption, and tick ribbon.
- Self-check:
- The page is one cohesive scene, not a collage. The eye lands on the year first, then the sprite, then the caption.
- At least 3 independent looping animations are visible.
- The color palette is restrained (cream + a single accent red + ink).
- No external assets — all sprites are inline SVG or CSS.
Output contract
Emit between <artifact> tags:
<artifact identifier="sprite-anim-slug" type="text/html" title="Sprite animation — Title">
<!doctype html>
<html>...</html>
</artifact>
One sentence before the artifact, nothing after.
Signals
- GitHub stars
- 95k
- Forks
- 11k
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Gateway key
sprite-animation-nexu-io- Source
- github.com/nexu-io/open-design