sprite-animation

sprite-animation is a skill for Claude Code, Codex from sanqiufong/slides-from-anything. It costs 141 tokens per session (1,110 once invoked), scanned A, a copy of sprite-animation, Apache-2.0.

A single animated educational slide in a pixel-art style, built with HTML and CSS. It combines a large year, headline, animated sprite, caption, timeline, and looping motion.

In plain words
What is it for?
Use it to create short history or topic explainers with pixel characters, objects, Japanese or English display text, and CSS animations.
Why use it?
It provides a defined visual format for explaining one topic as a frame that can be recorded into a video.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create short history or topic explainers with pixel characters, objects, Japanese or English display text, and CSS animations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sanqiufong/slides-from-anything/sprite-animation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sanqiufong/slides-from-anything --skill sprite-animation
Clone the repo
git clone --depth 1 https://github.com/sanqiufong/slides-from-anything

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for sprite-animation

README.md
[![agentmods](https://agentmods.dev/badge/skills/sanqiufong/slides-from-anything/sprite-animation/github.svg)](https://agentmods.dev/skills/sanqiufong/slides-from-anything/sprite-animation)
Your own site
<a href="https://agentmods.dev/skills/sanqiufong/slides-from-anything/sprite-animation"><img src="https://agentmods.dev/badge/skills/sanqiufong/slides-from-anything/sprite-animation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sprite-animation

Your own site · 80×15
<a href="https://agentmods.dev/skills/sanqiufong/slides-from-anything/sprite-animation"><img src="https://agentmods.dev/badge/skills/sanqiufong/slides-from-anything/sprite-animation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,110 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 94% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00141 $0.01110
Opus 5.5 $0.00056 $0.00444
Sonnet 5.5 $0.00028 $0.00222
Haiku 4.5 $0.00014 $0.00111

Measured 1mo ago against content hash 2476c8eedfcd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sprite-animation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

94% identical to sprite-animation — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/sprite-animation/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sprite Animation Skill

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

  1. 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.
  2. 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.
  3. Stage — full-bleed cream / off-white background (#f5efe2) with a subtle paper grain. Keep margins generous; this is one beat of a video.
  4. 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
  5. 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: crispEdges rectangles, or a box-shadow pixel 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.
  6. 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."
  7. 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-id on stage, year, sprite, caption, and tick ribbon.
  8. 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.

Read the full file on GitHub · 96 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 96 lines · 141 tokens per session scan A 2476c8eedfcd

Subscribe to this mod's changes

sprite-animation is a skill published in the GitHub repository sanqiufong/slides-from-anything (132 stars, last pushed today), licensed Apache-2.0. It adds 141 tokens to every session and 1,110 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 94% identical to sprite-animation, differing in 1 line, and is treated as a copy.

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