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.
npx skills add freshtechbro/claudedesignskills --skill barba-jsgit clone --depth 1 https://github.com/freshtechbro/claudedesignskillsWrote 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.
[](https://agentmods.dev/skills/freshtechbro/claudedesignskills/barba-js)<a href="https://agentmods.dev/skills/freshtechbro/claudedesignskills/barba-js"><img src="https://agentmods.dev/badge/skills/freshtechbro/claudedesignskills/barba-js/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.
<a href="https://agentmods.dev/skills/freshtechbro/claudedesignskills/barba-js"><img src="https://agentmods.dev/badge/skills/freshtechbro/claudedesignskills/barba-js.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk warn
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00081 | $0.04881 |
| Opus 5 | $0.00041 | $0.02440 |
| Sonnet 5 | $0.00016 | $0.00976 |
| Haiku 4.5 | $0.00008 | $0.00488 |
Grade A, and why
barba-js 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 11d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- barba-js — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 872 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Barba.js
Modern page transition library for creating fluid, smooth transitions between website pages. Barba.js makes multi-page websites feel like Single Page Applications (SPAs) by hijacking navigation and managing transitions without full page reloads.
Overview
Barba.js is a lightweight (7kb minified and compressed) JavaScript library that intercepts navigation between pages, fetches new content via AJAX, and smoothly transitions between old and new containers. It reduces page load delays and HTTP requests while maintaining the benefits of traditional multi-page architecture.
Core Features:
- Smooth page transitions without full reloads
- Lifecycle hooks for precise control over transition phases
- View-based logic for page-specific behaviors
- Built-in routing with @barba/router plugin
- Extensible plugin system
- Small footprint and high performance
- Framework-agnostic (works with vanilla JS, GSAP, anime.js, etc.)
Core Concepts
1. Wrapper, Container, and Namespace
Barba.js uses a specific DOM structure to manage transitions:
HTML Structure:
<body data-barba="wrapper">
<!-- Static elements (header, nav) stay outside container -->
<header>
<nav>
<a href="/">Home</a>
<a href="/about">About</a>
</nav>
</header>
<!-- Dynamic content goes in container -->
<main data-barba="container" data-barba-namespace="home">
<!-- This content changes on navigation -->
<h1>Home Page</h1>
<p>Content that will transition out...</p>
</main>
<!-- Static footer outside container -->
<footer>© 2025</footer>
</body>
Three Key Elements:
-
Wrapper (
data-barba="wrapper")- Outermost container
- Everything inside wrapper but outside container stays persistent
- Ideal for headers, navigation, footers that don't change
-
Container (
data-barba="container")- Dynamic content area that updates on navigation
- Only this section gets replaced during transitions
- Must exist on every page
What ships with it
7 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.
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.
- 11d ago First seen · 872 lines · 81 tokens per session scan A 505abfc560b3
barba-js is a skill published in the GitHub repository freshtechbro/claudedesignskills (873 stars, last pushed 9mo ago), licensed MIT. It adds 81 tokens to every session and 4,881 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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