Web Artifacts Builder
anthropics/skills
Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
Animate a number counting up to its target as it scrolls into view, once.
Install Count Up
$ npx skills add nexu-io/motion-anything --skill count-up -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nexu-io/motion-anything count-up --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .claude/skills && cp -r skills-src/recipes/web/count-up .claude/skills/count-up && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .claude/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-upType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add nexu-io/motion-anything --skill count-up -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nexu-io/motion-anything count-up --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .agents/skills && cp -r skills-src/recipes/web/count-up .agents/skills/count-up && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .agents/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nexu-io/motion-anything --skill count-up -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nexu-io/motion-anything count-up --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/recipes/web/count-up .cursor/skills/count-up && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .cursor/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/nexu-io/motion-anything.git --path recipes/web/count-up--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nexu-io/motion-anything --skill count-up -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nexu-io/motion-anything count-up --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/recipes/web/count-up .gemini/skills/count-up && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .gemini/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install nexu-io/motion-anything count-upInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add nexu-io/motion-anything --skill count-up -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .github/skills && cp -r skills-src/recipes/web/count-up .github/skills/count-up && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .github/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nexu-io/motion-anything --skill count-up -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nexu-io/motion-anything count-up --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexu-io/motion-anything.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/recipes/web/count-up .opencode/skills/count-up && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "count-up" agent skill from https://github.com/nexu-io/motion-anything/tree/main/recipes/web/count-up into .opencode/skills/count-up/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "count-up", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
count-up- GitHub stars
- 849
- Token cost
- ~382 tokens
- SKILL.md length
- 86 words
- Files
- 5
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Animate a number counting up to its target as it scrolls into view, once.
- Works in 2 steps: Copy count-up.css and count-up.js and… → Mark numbers: 0
- Stat/metric blocks to draw the eye to an impressive figure
- SKILL.md covers When to use it, When NOT to use it (restraint), How to apply and Accessibility & performance
- Runs JavaScript scripts from its folder
What it does
Count Up is an agent skill from nexu-io/motion-anything. Animate a number counting up to its target as it scrolls into view, once. Use for stat/metric blocks to draw the eye to an impressive figure. Honors prefers-reduced-motion (final value shown instantly). Avoid for precise values the user must read while animating, or many counters at once.
Its SKILL.md is about 380 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `count-up.js` and `recipe.motion.yaml`).
It sits in Frontend & Design. The repository describes itself as: ✨ The agentic motion layer — an open-source, chat-native motion engine. Describe the feeling; your AI ships the animation. The licence is Apache-2.0.
When your agent uses it
- Stat/metric blocks to draw the eye to an impressive figure
Example prompts
- “/count-up”
Requirements
- Node.js
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Copy count-up.css and count-up.js and link them.
- Mark numbers: 0
What it can do on your machine
Read from SKILL.md and the folder at commit b016900. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (JavaScript), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Count Up loads about 382 tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 86 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from nexu-io/motion-anything at commit b016900, republished under its Apache-2.0 licence (© nexu-io). 86 words, ~382 tokens.
Download SKILL.mdSave it as
.claude/skills/count-up/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.- name
- count-up
- description
- Animate a number counting up to its target as it scrolls into view, once. Use for stat/metric blocks to draw the eye to an impressive figure. Honors prefers-reduced-motion (final value shown instantly). Avoid for precise values the user must read while animating, or many counters at once.
- triggers
- count up, animated number, stat counter, 数字滚动, 数据强调
- od.mode
- prototype
- od.surface
- web
- od.platform
- desktop
- od.category
- animation-motion
- od.example_prompt
- Use count-up on the stats row: animate each number up to its target when the section enters the viewport, with thousands separators and a…
count-up
A number that animates up to its target on enter. Part of
motion-anything; obeys MOTION-SPEC.md.
When to use it
- Stat / metric blocks; drawing the eye to one impressive figure.
When NOT to use it (restraint)
- Precise values the reader must read exactly mid-animation.
- Many counters firing at once — pick the one that matters.
How to apply
- Copy
count-up.cssandcount-up.jsand link them. - Mark numbers:
<span data-count="10000" data-count-suffix="+">0</span>(optionaldata-count-prefix="$",data-count-duration="900").
Accessibility & performance
prefers-reduced-motion: final value shown immediately. Tabular figures keep width steady.
© nexu-io, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 4 other files in recipes/web/count-up of nexu-io/motion-anything.
- SKILL.md
- count-up.css
- count-up.js
- preview.html
- recipe.motion.yaml
Open the folder on GitHubat commit b016900
Compare with similar skills
Count Up next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Count Up this skillnexu-io/motion-anything | 849 | — | ~382 | Automated safety check: Pass | Apache-2.0 | |
| Web Artifacts Builderanthropics/skills | 180k | 41 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| React Doctormakeplane/plane | 61k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| Impeccablebestofjs/bestofjs | 3.1k | 27 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Figma Design System Builderwarpdotdev/warp | 65k | 2 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Web Interface Guidelines Reviewervercel-labs/openreview | 1.7k | 97 repos | ~308 | Automated safety check: Pass | None |
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Impeccable
bestofjs/bestofjs
A skill your agent uses when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a…
Figma Design System Builder
warpdotdev/warp
Builds or updates a design system in Figma from a codebase in ordered phases: discovery, variables and tokens, components, theming and documentation, with checkpoints.
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Web Interface Guidelines Reviewer
vercel-labs/openreview
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my…
Tailwindcss Development
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Always invoke when the user's message includes 'tailwind' in any form.
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Related
Categories
Questions about Count Up
What does Count Up do?
Animate a number counting up to its target as it scrolls into view, once. Count Up is an agent skill from nexu-io/motion-anything. Animate a number counting up to its target as it scrolls into view, once.
When should I use Count Up?
Count Up fits situations like: stat/metric blocks to draw the eye to an impressive figure.
How do I install Count Up in Claude Code?
Run `npx skills add nexu-io/motion-anything --skill count-up -a claude-code`. Or copy the skill folder (recipes/web/count-up in nexu-io/motion-anything) into .claude/skills/count-up in your project. Claude Code loads it when a task matches its description.
How do I install Count Up in Codex?
Run `npx skills add nexu-io/motion-anything --skill count-up -a codex`. Or copy the skill folder (recipes/web/count-up in nexu-io/motion-anything) into .agents/skills/count-up in your project. Codex loads it when a task matches its description.
Can I use Count Up in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nexu-io/motion-anything --skill count-up -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/count-up, .gemini/skills/count-up, .github/skills/count-up and .opencode/skills/count-up in your project.
What does Count Up need to run?
Going by SKILL.md and its folder, Count Up needs JavaScript for the scripts in its folder. Our summary lists: Node.js.
Does Count Up access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Count Up safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Count Up use?
Count Up is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Count Up use?
About 382 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Count Up?
Skills that share tags, products or a category with Count Up: Web Artifacts Builder (anthropics/skills, 180k stars), React Doctor (makeplane/plane, 61k stars), Impeccable (bestofjs/bestofjs, 3.1k stars) and Figma Design System Builder (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Count Up?
nexu-io (a GitHub organization) maintains it in nexu-io/motion-anything, which has 849 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on July 7, 2026.
Source: nexu-io/motion-anything on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.