code-slice-hero

code-slice-hero is a skill for Claude Code, Codex from Unclecheng-li/AI_Animation. It costs 44 tokens per session (1,270 once invoked), scanned A, a copy of code-slice-hero, MIT.

A ready-made headline animation made from square tiles: a moving depth wave lifts and tilts the tiles, which flip to reveal a second headline.

In plain words
What is it for?
Use it for animated web headlines, campaign openers, or product and presentation title cards.
Why use it?
It avoids implementing the tile grid, depth response, headline surfaces, shadows, and flip timing yourself.

Skill for Claude CodeCodex

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

Good fit Use it for animated web headlines, campaign openers, or product and presentation title cards.

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Install with agentmods
npx agentmods add skills/unclecheng-li/ai_animation/code-slice-hero
About the project

AI Animation Skills is a collection of agent instructions and templates for generating single-file HTML animations, including presentations, diagrams, protocol visualizations, phone interfaces, and video-style scenes. People use the skills with AI coding agents to create animated web pages from descriptions or templates. The catalogue entries are the collection's individual generation workflows.

Unclecheng-li/AI_Animation · 1,542 stars · on GitHub

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 Unclecheng-li/AI_Animation --skill code-slice-hero
Clone the repo
git clone --depth 1 https://github.com/Unclecheng-li/AI_Animation

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 code-slice-hero

README.md
[![agentmods](https://agentmods.dev/badge/skills/unclecheng-li/ai_animation/code-slice-hero/github.svg)](https://agentmods.dev/skills/unclecheng-li/ai_animation/code-slice-hero)
Your own site
<a href="https://agentmods.dev/skills/unclecheng-li/ai_animation/code-slice-hero"><img src="https://agentmods.dev/badge/skills/unclecheng-li/ai_animation/code-slice-hero/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 code-slice-hero

Your own site · 80×15
<a href="https://agentmods.dev/skills/unclecheng-li/ai_animation/code-slice-hero"><img src="https://agentmods.dev/badge/skills/unclecheng-li/ai_animation/code-slice-hero.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,270 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 100% 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 $0.00044 $0.01270
Opus 5.5 $0.00018 $0.00508
Sonnet 5.5 $0.00009 $0.00254
Haiku 4.5 $0.00004 $0.00127

Measured 10d ago against content hash 00cc6766b45b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-slice-hero 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 10d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (assets/gsap-3.14.2.min.js, shadows.js, surface.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

100% identical to code-slice-hero — 0 lines 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/ui2v-motions/01_动效库/itelmn/code-slice-hero/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Slice Hero

A full square-tile surface carries one seamless headline. An imaginary cursor crosses the surface; nearby tiles respond to its Gaussian depth field with lift and tilt, and only the cells intersecting either headline silhouette turn over to reveal the rear headline. The whole grid is one instanced WebGL 2 draw with a shared front/rear texture pair, plus a batched projected-shadow pass. Copy, text size and square cell size are independent, so tiles never stretch. Sweep direction, easing strength, cursor radius, falloff, depth, bounce and shadow are all variables.

Composition id: code-slice-hero. Duration 8 s at 30 fps, 1920×1080.

Files

  • code-slice-hero.html (24 KB)
  • assets/Geist-Bold.ttf (65 KB)
  • assets/Geist-OFL.txt (4 KB)
  • assets/gsap-3.14.2.min.js (128 KB)
  • assets/GSAP-NOTICE.txt (1 KB)
  • shadows.js (10 KB)
  • surface.js (8 KB)

Install

Install with npx hyperframes add code-slice-hero; by default the files above land under compositions/code-slice-hero/. Then mount the block from the host index.html:

<div
  data-composition-id="code-slice-hero"
  data-composition-src="compositions/code-slice-hero/code-slice-hero.html"
  data-start="0"
  data-duration="8"
  data-track-index="1"
  data-width="1920"
  data-height="1080"
></div>

Render with custom values by targeting the composition file directly:

npx --yes [email protected] render 'compositions/code-slice-hero/code-slice-hero.html' --variables '{"headline":"MAKE IT","reverseHeadline":"MATTER."}'

Variables

Read at runtime via window.__hyperframes.getVariables(); declared on the composition root as data-composition-variables (single-quoted attribute, plain JSON).

| id | type | default | label / range | | ------------------- | ------ | ----------------- | ------------------------------------------------- | -------------- | | headline | string | "MAKE IT" | Copy · Front headline max 32 chars | | reverseHeadline | string | "MATTER." | Copy · Rear headline max 32 chars | | direction | enum | "left-to-right" | Motion · Sweep direction (left-to-right | right-to-left) | | sweepDuration | number | 4.2 | Motion · Sweep duration 2.6–4.5 step 0.05 | | sweepEaseStrength | number | 3 | Motion · Sweep easing strength 0–3 step 0.05 | | flipDuration | number | 0.75 | Motion · Each tile flip 0.65–1.65 step 0.05 | | cursorRadius | number | 210 | Cursor · Influence radius 160–480 step 10 | | cursorFalloff | number | 1.4 | Cursor · Influence falloff 0.4–3.5 step 0.05 | | cursorDepth | number | 80 | Cursor · Depth (+ toward camera) -320–320 step 10 | | tiltStrength | number | 55 | Cursor · Pull / tilt strength 0–55 step 1 | | noiseStrength | number | 2 | Motion · Organic variation 0–2 step 0.05 | | flipBounce | number | 0.15 | Motion · Elastic flip bounce 0–0.8 step 0.05 | | cellSize | number | 112 | Slices · Square cell size 24–120 step 4 | | formationScale | number | 1 | Slices · Local formation scale 0.94–1 step 0.001 | | fontSize | number | 310 | Type · Maximum size 160–480 step 5 | | behindColor | color | "#212121" | Surface · Behind-tile background | | shadowStrength | number | 0.19 | Surface · Cast shadow strength 0–0.65 step 0.01 | | shadowSoftness | number | 4 | Surface · Cast shadow softness 0.5–4 step 0.1 |

Read the full file on GitHub · 82 lines

Files

What ships with it

10 files 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. 10d ago First seen · 82 lines · 44 tokens per session scan A 00cc6766b45b

Subscribe to this mod's changes

code-slice-hero is a skill published in the GitHub repository Unclecheng-li/AI_Animation (1,542 stars, last pushed 11d ago), licensed MIT. It adds 44 tokens to every session and 1,270 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to code-slice-hero, differing in 0 lines, and is treated as a copy.

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