frontend-design
anthropics/claude-plugins-official
Distinctive visual design guidance for building UIs with intentional aesthetic choices, not templated defaults.
What is frontend-design?
This skill provides design direction for creating visually distinctive web interfaces by grounding choices in subject matter, typography, color, and layout. Use it when building new UIs or reshaping existing ones to move beyond generic design patterns and develop a coherent visual identity specific to your brief.
- Ground design decisions in the subject's real content, materials, and vernacular rather than generic templates
- Develop deliberate typography pairings and type scales that carry personality and are specific to each project
- Create structural devices and layouts that encode information meaningfully rather than decorating content
- Plan color palettes as named hex values (4–6 colors) tied to the brief's visual direction
- Design one signature memorable element that embodies the brief while keeping surrounding elements disciplined
- Write interface copy that clarifies rather than decorates, using active voice and consistent vocabulary
How to install frontend-design
npx skills add https://github.com/anthropics/claude-plugins-official --skill frontend-designHow to use frontend-design
- 1.Start by pinning down the brief: name the concrete subject, its audience, and the page's single job
- 2.Brainstorm a design plan including a color palette (4–6 named hex values), typeface pairings for display and body text, a layout concept, and one signature element
- 3.Review your plan against the brief to ensure it's specific to this project, not a generic default you'd produce for any similar brief
- 4.Revise any part that reads templated, noting what you changed and why
- 5.Build the design following your revised plan exactly, deriving every color and type decision from it
- 6.Critique your work as you build, removing any decoration that doesn't serve the brief
Use cases
- Designing a landing page or marketing site that needs to stand out from competitor templates
- Reshaping an existing UI to develop a distinctive brand identity
- Creating a web application interface where visual hierarchy and typography reinforce the product's purpose
- Building a portfolio or case study site where the design itself demonstrates capability
- Developing a specialized tool or service site where the visual direction reflects the subject matter
- Product designers building new interfaces
- Frontend developers implementing custom designs
- Design leads establishing visual identity for a product or brand
- Founders or entrepreneurs creating distinctive web presences
- Teams wanting to move beyond default design patterns
frontend-design FAQ
The single unique, memorable thing the page will be known for that embodies the brief. It could be a distinctive hero treatment, a characteristic animation, a unique structural device, or a bold typographic choice—whatever is most appropriate for the subject. Keep everything else quiet and disciplined around it.
Recognize the three common clusters: warm cream backgrounds with serif + terracotta, near-black with acid-green/vermilion accents, and broadsheet layouts with hairline rules. These are legitimate for some briefs, but don't default to them. Instead, let the brief's subject matter and your specific choices drive the direction.
Only if the content actually is a sequence where order carries information the reader needs, like a real process or timeline. Question whether numbered markers truly make sense before using them; they're often a generic decoration rather than a meaningful structural choice.
Leverage motion deliberately where it serves the subject—page-load sequences, scroll-triggered reveals, or hover interactions. However, scattered effects often make designs feel AI-generated. Choose an orchestrated moment that matches your direction, and sometimes less is more.
Write from the end user's perspective using active voice. Be specific and clear about what things do rather than clever. Use consistent vocabulary throughout the interface so people learn their way around. Treat copy as design material with the same intentionality as spacing and color.
Full instructions (SKILL.md)
Source of truth, from anthropics/claude-plugins-official.
name: frontend-design description: Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults. license: Complete terms in LICENSE.txt
Frontend Design
Approach this as the design lead at a small studio known for giving every client a visual identity that could not be mistaken for anyone else's. This client has already rejected proposals that felt templated, and is paying for a distinctive point of view: make deliberate, opinionated choices about palette, typography, and layout that are specific to this brief, and take one real aesthetic risk you can justify.
Ground it in the subject
If the brief does not pin down what the product or subject is, pin it yourself before designing: name one concrete subject, its audience, and the page's single job, and state your choice. If there's any information in your memory about the human's preferences, context about what they're building, or designs you've made before – use that as a hint. The subject's own world, its materials, instruments, artifacts, and vernacular, is where distinctive choices come from. Build with the brief's real content and subject matter throughout.
Design principles
For web designs, the hero is a thesis. Open with the most characteristic thing in the subject's world, in whatever form makes sense for it: a headline, an image, an animation, a live demo, an interactive moment. Be deliberate with your choice: a big number with a small label, supporting stats, and a gradient accent is the template answer, only use if that's truly the best option.
Typography carries the personality of the page. Pair the display and body faces deliberately, not the same families you would reach for on any other project, and set a clear type scale with intentional weights, widths, and spacing. Make the type treatment itself a memorable part of the design, not a neutral delivery vehicle for the content.
Structure is information. Structural devices, numbering, eyebrows, dividers, labels, should encode something true about the content, not decorate it. Many generic designs use numbered markers (01 / 02 / 03), but that's only appropriate if the content actually is a sequence - like a real process or a typed timeline where order carries information the reader needs. Question if choices like numbered markers actually make sense before incorporating them.
Leverage motion deliberately. Think about where and if animation can serve the subject: a page-load sequence, a scroll-triggered reveal, hover micro-interactions, ambient atmosphere. An orchestrated moment usually lands harder than scattered effects; choose what the direction calls for. However, sometimes less is more, and extra animation contributes to the feeling that the design is AI-generated.
Match complexity to the vision. Maximalist directions need elaborate execution; minimal directions need precision in spacing, type, and detail. Elegance is executing the chosen vision well.
Consider written content carefully. Often a design brief may not contain real content, and it's up to you to come up with copy. Copy can make a design feel as templated as the design itself. See the below section on writing for more guidance.
Process: brainstorm, explore, plan, critique, build, critique again
For calibration: AI-generated design right now clusters around three looks: (1) a warm cream background (near #F4F1EA) with a high-contrast serif display and a terracotta accent; (2) a near-black background with a single bright acid-green or vermilion accent; (3) a broadsheet-style layout with hairline rules, zero border-radius, and dense newspaper-like columns. All three are legitimate for some briefs, but they are defaults rather than choices, and they appear regardless of subject. Where the brief pins down a visual direction, follow it exactly — the brief's own words always win, including when it asks for one of these looks. Where it leaves an axis free, don't spend that freedom on one of these defaults. Just like a human designer who's hired, there's often a careful balance between doing what you're good at and taking each project as a chance to experiment and learn.
Work in two passes. First, brainstorm a short design plan based on the human's design brief: create a compact token system with color, type, layout, and signature. Color: describe the palette as 4–6 named hex values. Type: the typefaces for 2+ roles (a characterful display face that's used with restraint, a complementary body face, and a utility face for captions or data if needed). Layout: a layout concept, using one-sentence prose descriptions and ASCII wireframes to ideate and compare. Signature: the single unique element this page will be remembered by that embodies the brief in an appropriate way.
Then review that plan against the brief before building: if any part of it reads like the generic default you would produce for any similar page (work through a similar prompt to see if you arrive somewhere similar) rather than a choice made for this specific brief — revise that part, say what you changed and why. Only after you've confirmed the relative uniqueness of your design plan should you start to write the code, following the revised plan exactly and deriving every color and type decision from it.
When writing the code, be careful of structuring your CSS selector specificities. It's easy to generate CSS classes that cancel each other out (especially with a type-based selector like .section and a element-based selector like .cta). This can happen often with paddings/margins between sections.
Try to do a lot of this planning and iteration in your thinking, and only show ideas to the user when you have higher confidence it'll delight them.
Restraint and self-critique
Spend your boldness in one place. Let the signature element be the one memorable thing, keep everything around it quiet and disciplined, and cut any decoration that does not serve the brief. Not taking a risk can be a risk itself! Build to a quality floor without announcing it: responsive down to mobile, visible keyboard focus, reduced motion respected. Critique your own work as you build, taking screenshots if your environment supports it – a picture is worth 1000 tokens. Consider Chanel's advice: before leaving the house, take a look in the mirror and remove one accessory. Human creators have memory and always try to do something new, so if you have a space to quickly jot down notes about what you've tried, it can help you in future passes.
More on writing in design
Words appear in a design for one reason: to make it easier to understand, and therefore easier to use. They are design material, not decoration. Bring the same intentionality to copy that you would bring to spacing and color. Before writing anything, ask what the design needs to say, and how it can best be said to help the person navigate the experience.
Write from the end user's side of the screen. Name things by what people control and recognize, never by how the system is built. A person manages notifications, not webhook config. Describe what something does in plain terms rather than selling it. Being specific is always better than being clever.
Use active voice as default. A control should say exactly what happens when it's used: "Save changes," not "Submit." An action keeps the same name through the whole flow, so the button that says "Publish" produces a toast that says "Published." The vocabulary of an interface is the signposting for someone navigating the product. Cohesion and consistency are how people learn their way around.
Treat failure and emptiness as moments for direction, not mood. Explain what went wrong and how to fix it, in the interface's voice rather than a person's. Errors don't apologize, and they are never vague about what happened. An empty screen is an invitation to act.
Keep the register conversational and tuned: plain verbs, sentence case, no filler, with tone matched to the brand and the audience. Let each element do exactly one job. A label labels, an example demonstrates, and nothing quietly does double duty.
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