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 agentmods add skills/sacredvoid/skillkit/premium-hero-buildernpx skills add sacredvoid/skillkit --skill premium-hero-buildergit clone --depth 1 https://github.com/sacredvoid/skillkitWhat 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 | $0.00074 | $0.09571 |
| Opus 5 | $0.00037 | $0.04785 |
| Sonnet 5 | $0.00015 | $0.01914 |
| Haiku 4.5 | $0.00007 | $0.00957 |
Grade A, and why
premium-hero-builder 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 833 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Premium Hero Builder
Build agency-quality hero sections and landing pages with cinematic video backgrounds, liquid glass morphism, and editorial typography. This skill encodes the patterns, CSS techniques, and design system extracted from 20 pixel-perfect design prompts and the Viktor Oddy methodology.
When to Use
- Building hero sections or landing pages
- User asks for "premium", "dark", "cinematic", "glassmorphic", or "editorial" UI
- Creating marketing pages, SaaS landing pages, or portfolio sites
- Any request involving background videos, liquid glass effects, or high-end typography
Core Philosophy
"AI will not replace you, but designers who use AI will replace those who don't."
The difference between generic AI output and premium results is prompt specificity. Generic prompts produce template-looking sites. Detailed prompts with exact fonts, sizes, colors, spacing, and effects produce agency-quality work.
The formula:
- Pick a visual direction from the Reference Patterns below
- Specify every detail: fonts, sizes, colors, spacing, effects, animations
- Build in layers: background video -> overlays -> content -> glass effects -> animations
- Iterate: add videos to multiple sections, swap placeholder images, refine copy
Design System: Recurring Patterns
Typography Pairings (Pick One)
| Display Font | Body Font | Vibe |
|---|---|---|
| Instrument Serif (italic) | Inter / Barlow / Geist | Editorial, Apple-like |
| General Sans | Inter | Web3, Modern |
| Rubik (bold, uppercase) | Rubik (regular) | Industrial, Bold |
| Poppins + Source Serif 4 | Poppins | Botanical, Refined |
| Instrument Sans | Instrument Serif (italic accent) | SaaS, Clean |
Rule: Display font for headlines (big, dramatic). Body font for nav, descriptions, buttons. One italic serif accent word inside a sans-serif headline creates instant editorial feel.
Color Palettes
Pure Black (most common):
--background: #000000;
--foreground: #ffffff;
--muted: #888888 or hsl(0 0% 65%);
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.
- 3d ago First seen · 833 lines · 74 tokens per session scan A b35c1f86fd89
premium-hero-builder is a skill published in the GitHub repository sacredvoid/skillkit (10 stars, last pushed 5mo ago), licensed MIT. It adds 74 tokens to every session and 9,571 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 2026-08-31.
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