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 ChenShuo2004/cs-skills --skill cs-frontend-designgit clone --depth 1 https://github.com/ChenShuo2004/cs-skillsWrote 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/chenshuo2004/cs-skills/cs-frontend-design)<a href="https://agentmods.dev/skills/chenshuo2004/cs-skills/cs-frontend-design"><img src="https://agentmods.dev/badge/skills/chenshuo2004/cs-skills/cs-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/chenshuo2004/cs-skills/cs-frontend-design"><img src="https://agentmods.dev/badge/skills/chenshuo2004/cs-skills/cs-frontend-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00096 | $0.01538 |
| Opus 5 | $0.00048 | $0.00769 |
| Sonnet 5 | $0.00019 | $0.00308 |
| Haiku 4.5 | $0.00010 | $0.00154 |
Grade A, and why
cs-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 — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design
Purpose
Use this skill to make frontend work feel like a real product, not a decorative mockup.
It helps Codex turn a vague UI request into a usable interface with clear business flow, information hierarchy, interaction states, responsive layout, and visual verification.
For CS Skills, this skill should act as the frontend product taste layer: practical, polished, workflow-first, and careful about verification.
When To Use
- Build or revise a user-facing page, dashboard, admin panel, tool, editor, landing page, game UI, or prototype.
- Review a frontend change for layout, usability, visual hierarchy, responsive behavior, or missing states.
- Turn a PRD, rough idea, screenshot, or existing page into a working product interface.
- Add UI controls, navigation, charts, tables, upload flows, account tools, or visual workflow surfaces.
- Verify a local frontend in browser after implementation.
Do not use this skill for backend-only tasks, data migrations, API-only changes, or pure copy edits unless they affect the visible user experience.
Core Workflow
- Read the project docs, PRD, README, route notes, or task brief before touching UI.
- Inspect the existing app: framework, routes, components, CSS system, assets, icons, and design conventions.
- Map the user goal: input, output, primary action, state transitions, edge cases, and likely failure points.
- Identify the product type: operational tool, dashboard, editor, consumer app, landing page, game, portfolio, or content site.
- Design the first screen as the real working experience unless the user explicitly asks for a marketing page.
- Implement with the repo's existing component library and style system first. Add dependencies only when the stack cannot reasonably handle the job.
- Verify visually when a browser or dev server is available: page loads, key controls render, no blank state, no obvious console errors, and desktop/mobile layouts do not overlap.
What ships with it
1 file 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.
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 · 112 lines · 96 tokens per session scan A b2d43394a8bf
cs-frontend-design is a skill published in the GitHub repository ChenShuo2004/cs-skills (142 stars, last pushed 7d ago), licensed MIT. It adds 96 tokens to every session and 1,538 once invoked, about $0.0005 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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