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/victorgpt/vibeusage/frontend-ui-functionalnpx skills add victorGPT/vibeusage --skill frontend-ui-functionalgit clone --depth 1 https://github.com/victorGPT/vibeusageWrote 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/victorgpt/vibeusage/frontend-ui-functional)<a href="https://agentmods.dev/skills/victorgpt/vibeusage/frontend-ui-functional"><img src="https://agentmods.dev/badge/skills/victorgpt/vibeusage/frontend-ui-functional.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 | $0.00042 | $0.00801 |
| Opus 5 | $0.00021 | $0.00400 |
| Sonnet 5 | $0.00008 | $0.00160 |
| Haiku 4.5 | $0.00004 | $0.00080 |
Grade A, and why
frontend-ui-functional 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 4d 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 — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend UI Functional
Overview
Provide a lightweight, repeatable workflow for functional React/Vite/Tailwind UI using structure, tokens, accessibility, and performance-ready patterns plus reusable snippets.
Project Overlay (Required)
If the repo contains docs/skills/frontend-ui-functional/project-overlay.md, read and apply it before starting. Project-specific rules override this skill.
When to Use
- Building new UI pages, templates, or component libraries in React/Vite/Tailwind.
- Standardizing layout, token usage, a11y/accessibility, and performance practices across UI.
- Shipping functional UI quickly without skipping baseline a11y/perf checks.
When Not to Use
- Pure copywriting/content strategy tasks.
- Non-React or non-Tailwind stacks.
- Deep visual branding exploration (use the
frontend-designskill).
Workflow (Minimum Pass)
- Project overlay check →
docs/skills/frontend-ui-functional/project-overlay.md(if present) - Structure first →
references/atomic-design.md - Apply styling tokens →
references/styling-tokens.md - A11y pass →
references/a11y-checklist.md - Performance + state pass →
references/perf-and-state.md - Tooling + QA →
references/tooling.md
If time is tight, do a thin pass of each step rather than skipping a11y/perf.
Quick Reference
| Need | Use |
|---|---|
| Project overlay | docs/skills/frontend-ui-functional/project-overlay.md (if present) |
| Structure system | references/atomic-design.md |
| Tokenized styling | references/styling-tokens.md |
| Accessibility/a11y | references/a11y-checklist.md |
| Performance + state | references/perf-and-state.md |
| QA tooling | references/tooling.md |
| Reusable UI snippets | assets/snippets/* |
What ships with it
11 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.
- assets/snippets/button.tsx 614 B
- assets/snippets/card.tsx 611 B
- assets/snippets/form.tsx 1.1 KB
- assets/snippets/layout.tsx 636 B
- assets/snippets/lazy-route.tsx 456 B
- assets/snippets/zustand-store.ts 296 B runs code
- references/a11y-checklist.md 596 B
- references/atomic-design.md 780 B
- references/perf-and-state.md 704 B
- references/styling-tokens.md 712 B
- references/tooling.md 576 B
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.
- 4d ago First seen · 90 lines · 42 tokens per session scan A 533a04cc4c3e
frontend-ui-functional is a skill published in the GitHub repository victorGPT/vibeusage (131 stars, last pushed 1mo ago), licensed MIT. It adds 42 tokens to every session and 801 once invoked, about $0.0002 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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