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 nexu-io/motion-anything --skill border-beamgit clone --depth 1 https://github.com/nexu-io/motion-anythingWrote 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/nexu-io/motion-anything/border-beam)<a href="https://agentmods.dev/skills/nexu-io/motion-anything/border-beam"><img src="https://agentmods.dev/badge/skills/nexu-io/motion-anything/border-beam/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/nexu-io/motion-anything/border-beam"><img src="https://agentmods.dev/badge/skills/nexu-io/motion-anything/border-beam.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00060 | $0.00486 |
| Opus 5.5 | $0.00024 | $0.00194 |
| Sonnet 5.5 | $0.00012 | $0.00097 |
| Haiku 4.5 | $0.00006 | $0.00049 |
Grade A, and why
border-beam 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.
What it actually says
border-beam
A bright comet that travels an element's border. Part of
motion-anything; obeys MOTION-SPEC.md. Technique
popularized by Magic UI, reimplemented dependency-free (pure CSS).
When to use it
- A single "new" / "featured" card or a hero CTA that should feel lively for a beat.
When NOT to use it (restraint)
- Several at once (competing beams = noise). One per view.
- Calm/serious contexts — or when a quieter full-border glow fits: use shine-border instead.
How to apply
- Copy
border-beam.cssinto the project and link it. - Mark the element:
<div class="beam"> … </div> - Tune
--beam-color,--beam-size, and the animation duration (default 3s).
Accessibility & performance
- Under
prefers-reduced-motionthe beam stops; a plain static border remains. - Animates a masked conic-gradient (via
@property --beam-angle) — compositor-friendly.
Framework notes
- Pure CSS; works in any framework. Scope
--beam-*per component.
What ships with it
3 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.
- 1mo ago First seen · 56 lines · 60 tokens per session scan A e0a6227a4213
border-beam is a skill published in the GitHub repository nexu-io/motion-anything (993 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 60 tokens to every session and 486 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.
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