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/selftune-dev/selftune/frontend-designnpx skills add selftune-dev/selftune --skill frontend-designgit clone --depth 1 https://github.com/selftune-dev/selftuneWrote 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/selftune-dev/selftune/frontend-design)<a href="https://agentmods.dev/skills/selftune-dev/selftune/frontend-design"><img src="https://agentmods.dev/badge/skills/selftune-dev/selftune/frontend-design.svg" alt="Measured on agentmods" 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 | $0.00027 | $0.00125 |
| Opus 5 | $0.00014 | $0.00063 |
| Sonnet 5 | $0.00005 | $0.00025 |
| Haiku 4.5 | $0.00003 | $0.00013 |
Grade A, and why
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 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.
What it actually says
frontend-design
Provides guidance on UI/UX design principles for building effective web interfaces.
When to Use
- User asks about UI/UX design principles
- User needs help with layout, typography, or color choices
- User is building a web application frontend
Examples
- "Help me design a landing page"
- "What are good color combinations for a dashboard?"
- "Review my UI layout"
Configuration
No configuration required.
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 · 25 lines · 27 tokens per session scan A 4766d360f6b2
frontend-design is a skill published in the GitHub repository selftune-dev/selftune (16 stars, last pushed 4d ago), licensed MIT. It adds 27 tokens to every session and 125 once invoked, about $0.0001 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.
Other skills, from other repositories
theme-styling
Apply consistent theming with Tailwind CSS 4, including dark mode support and design tokens. Use when styling components, fixing dark mode issues, or adjusting visual design.
page-styling
Define agentconfig.org page layout and hero styling for new pages that match the site.
create-design-system
Use when building consistent design systems, visual tokens, components, and CSS foundations.
design-sync
Use when synchronizing design tokens, storybook components, or CSS variables between design and code.
design-taste-frontend
Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check.
reskin
Author a NEW skin for the reskinnable-demo app. A skin is a self-contained domain plugin under src/skins/ / that implements the frozen Skin contract (src/shell/skin-contract.ts) to swap the app's entire experience — brand, theme, layout, pages, tools, data, and agent — as a live sales demo. Use when the user says "add…