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 ulises-jeremias/agent-toolkit --skill frontend-design-reviewgit clone --depth 1 https://github.com/ulises-jeremias/agent-toolkitWrote 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/ulises-jeremias/agent-toolkit/frontend-design-review)<a href="https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/frontend-design-review"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/frontend-design-review/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/ulises-jeremias/agent-toolkit/frontend-design-review"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/frontend-design-review.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 | $0.00112 | $0.01545 |
| Opus 5 | $0.00056 | $0.00772 |
| Sonnet 5 | $0.00022 | $0.00309 |
| Haiku 4.5 | $0.00011 | $0.00154 |
Grade A, and why
frontend-design-review 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 8d 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 — 173 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design Review
Review UI implementations against design quality standards and your design system OR create distinctive, production-grade frontend interfaces from scratch.
Two Modes
Mode 1: Design Review
Evaluate existing UI for design system compliance, three quality pillars (Frictionless, Quality Craft, Trustworthy), accessibility, and code quality.
Mode 2: Creative Frontend Design
Create distinctive interfaces that avoid generic "AI slop" aesthetics, have clear conceptual direction, and execute with precision.
Creative Frontend Design
Before coding, commit to an aesthetic direction:
- Purpose: What problem does this solve? Who uses it?
- Tone: minimal, maximalist, retro-futuristic, organic, luxury, playful, editorial, brutalist, art deco, soft/pastel, industrial, etc.
- Constraints: Framework, performance, accessibility requirements.
- Differentiation: What makes this distinctive and context-appropriate?
Aesthetics Guidelines
- Typography: Distinctive fonts that elevate aesthetics. Pair a display font with a refined body font. Avoid Inter, Roboto, Arial, Space Grotesk.
- Color & Theme: Cohesive palette with CSS variables. Dominant colors + sharp accents > timid, evenly-distributed palettes.
- Motion: CSS-only preferred. One well-orchestrated page load with staggered reveals > scattered micro-interactions.
- Spatial Composition: Asymmetry, overlap, diagonal flow, grid-breaking elements, generous negative space OR controlled density.
- Backgrounds: Gradient meshes, noise textures, geometric patterns, layered transparencies, dramatic shadows, grain overlays.
AVOID: Overused fonts, cliched color schemes, predictable layouts, cookie-cutter design without context-specific character.
Match implementation complexity to vision. Maximalist = elaborate code. Minimalist = restraint and precision.
Design Review
Design System Workflow
Before implementing:
- Review component in your Storybook / component library for API and usage
- Use Figma Dev Mode to get exact specs (spacing, tokens, properties)
- Implement using design system components + design tokens
What ships with it
4 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.
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.
- 8d ago First seen · 173 lines · 112 tokens per session scan A 52a8648b5c7c
frontend-design-review is a skill published in the GitHub repository ulises-jeremias/agent-toolkit (17 stars, last pushed today), licensed MIT. It adds 112 tokens to every session and 1,545 once invoked, about $0.0006 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 2026-09-04.
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