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Get Started Free →A living GPU shader background rendered in dependency-free WebGL — a distinctive, marketing-grade hero backdrop. One per view; put a scrim behind text. Renders a static frame under prefers-reduced-motion.
.claude/skills/nexu-io-iridescence/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | -85% | 0% |
| case-08 | ✗→✓ | ▲ Improved | -35% | 0% |
| case-02 | ✗→✓ | ▲ Improved | -61% | 0% |
| case-07 | ✗→✓ | ▲ Improved | -7% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -32% | 0% |
A GPU fragment-shader background (dependency-free WebGL).
Copy _fx/shaderbg.js + iridescence.js; add <div class="iridescence" style="position:absolute;inset:0"></div> behind your content.
Other measured skills in the registry, with their headline benchmark lift.