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 FerroxLabs/ferrox-factory --skill ferrox-frontend-designgit clone --depth 1 https://github.com/FerroxLabs/ferrox-factoryWrote 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/ferroxlabs/ferrox-factory/ferrox-frontend-design)<a href="https://agentmods.dev/skills/ferroxlabs/ferrox-factory/ferrox-frontend-design"><img src="https://agentmods.dev/badge/skills/ferroxlabs/ferrox-factory/ferrox-frontend-design/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/ferroxlabs/ferrox-factory/ferrox-frontend-design"><img src="https://agentmods.dev/badge/skills/ferroxlabs/ferrox-factory/ferrox-frontend-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00064 | $0.01875 |
| Opus 5 | $0.00032 | $0.00937 |
| Sonnet 5 | $0.00013 | $0.00375 |
| Haiku 4.5 | $0.00006 | $0.00187 |
Grade A, and why
ferrox-frontend-design 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 10d 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 — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Doctrine is original Ferrox Factory writing (MIT). The knowledge base (
data/,templates/design/,scripts/search.js) is ported from ijfw-design: Sean Donahoe's own IP, internal port, ijfw repo untouched.
Frontend Design
Overview
Act like a studio that was hired specifically because the client fired someone for shipping a template. Every visual decision (palette, faces, layout, copy) must be an argument for this product, defensible in a sentence that names the subject. If a choice would survive being pasted into an unrelated project, it is not a choice yet.
Core principle: distinctiveness comes from the subject, not from decorating harder.
Architecture: contract vs knowledge
- DESIGN.md is the per-project CONTRACT (state). It lives at the project root and records what THIS project locked: palette, type scale, spacing, components, voice, never-do list.
- This skill plus its data is the KNOWLEDGE (global). Palettes, patterns, typography pairings, UX rules, direction templates, and a brand atlas that apply to any project.
- The flow:
/ferrox-design-initconsults the knowledge, crystallizes decisions into DESIGN.md, and DESIGN.md then binds all subsequent UI work. Knowledge advises; the contract rules.
The contract comes first
if [ -f DESIGN.md ]; then
echo "DESIGN.md found: binding for this session"
else
echo "no DESIGN.md: offer /ferrox:design-init before substantial UI work"
fi
DESIGN.mdexists: it is binding. Read it before writing any interface code. Its tokens and never-do list override your instincts, this skill's defaults, and every knowledge-base suggestion. If the contract blocks something you believe is right, propose an edit to the contract; do not quietly ship around it.- No
DESIGN.md: propose creating one with/ferrox-design-init(interview mode for greenfield,--from-existingwhen UI code already votes). For a quick throwaway mockup you may proceed, but say so and treat its decisions as candidates for the future contract, not precedent.
What ships with it
23 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.
- data/brand-atlas.json 26 KB
- data/charts.csv 9.1 KB
- data/google-fonts.csv 4.0 KB
- data/palettes.csv 12 KB
- data/patterns.csv 14 KB
- data/PROVENANCE.md 1.1 KB
- data/reasoning.csv 9.9 KB
- data/styles.csv 17 KB
- data/typography.csv 9.7 KB
- data/ux-guidelines.csv 31 KB
- scripts/search.js 14 KB runs code
- templates/design/bento-grid.md 6.2 KB
- templates/design/brutalist-luxe.md 5.7 KB
- templates/design/cinematic-dark.md 5.5 KB
- templates/design/data-dense-dashboard.md 6.2 KB
- templates/design/editorial-warm.md 5.2 KB
- templates/design/glassmorphic.md 5.8 KB
- templates/design/magazine-editorial.md 6.7 KB
- templates/design/maximalist-vibrant.md 6.0 KB
- templates/design/neo-swiss-tech.md 5.9 KB
- templates/design/swiss-minimal.md 4.6 KB
- templates/design/terminal-native.md 5.3 KB
- templates/design/warm-organic.md 6.4 KB
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.
- 10d ago First seen · 103 lines · 64 tokens per session scan A 5c5c637152bb
ferrox-frontend-design is a skill published in the GitHub repository FerroxLabs/ferrox-factory (22 stars, last pushed 1mo ago), licensed MIT. It adds 64 tokens to every session and 1,875 once invoked, about $0.0003 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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