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shimmer-button — measured AI agent skill | DecimalAI

nexu-io/shimmer-button

NewSkillScoreMaintained

Make one primary CTA feel premium: a soft band of light sweeps across it (slowly at rest, faster on hover). Reserve for the single primary button; keep it subtle. Pure CSS; the sweep stops (solid button) under prefers-reduced-motion. Do not use on secondary/destructive buttons or many at once.

Frontendby nexu-io

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Frontend / UI pack

1 · One-time — install the CLI (docs ↗)

pip install decimalai

2 · Get the skill — writes .claude/skills/nexu-io-shimmer-button/SKILL.md

decimalai skills pull nexu-io-shimmer-button --out .claude/skills/

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/nexu-io-shimmer-button/SKILL.md https://app.decimal.ai/s/nexu-io-shimmer-button/SKILL.md

Raw file: /s/nexu-io-shimmer-button/SKILL.md ↗ · machine-readable summary at /s/nexu-io-shimmer-button.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

23 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 1h ago

Yes — +35% lift-25% tokens0% turns87% of whole cases pass with skill (20/23)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-04	✗→✓	▲ Improved	-57%	0%
case-06	✗→✓	▲ Improved	-65%	0%
case-07	✗→✓	▲ Improved	-10%	0%
case-08	✗→✓	▲ Improved	-75%	0%
case-11	✗→✓	▲ Improved	-39%	0%

Showing 5 of 23 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

nexu-io / motion-anything

recipes/web/shimmer-button/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/3/2026Version v1

Skill contents

SKILL.md

shimmer-button

A highlight that sweeps across a CTA. Part of motion-anything; obeys MOTION-SPEC.md. Technique popularized by Magic UI, reimplemented dependency-free (pure CSS).

When to use it

One primary call-to-action you want to feel premium ("Get started" / "Upgrade").

When NOT to use it (restraint)

Secondary / destructive buttons; many buttons at once (the sweep becomes noise). One per view.

How to apply

Copy shimmer-button.css into the project and link it.
Mark the button:

html <button class="shimmer">Get started</button>

Tune the sweep duration (default 2.6s at rest, 1.1s on hover) and the button colors as needed.

Accessibility & performance

Under prefers-reduced-motion the sweep stops; a plain solid button remains.
Animates the transform of a masked pseudo-element only — GPU-safe.

Framework notes

Pure CSS; works in any framework.

Want to see if nexu-io/shimmer-button would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.