القائمة
Interface design with craft and consistency — dashboards, apps, tools, landing pages, marketing sites. Any UI that needs a design system, memory, and enforcement.
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| name | cc-design |
| description | Interface design with craft and consistency — dashboards, apps, tools, landing pages, marketing sites. Any UI that needs a design system, memory, and enforcement. |
Build interface design with craft and consistency.
Use for: Dashboards, admin panels, SaaS apps, tools, settings pages, data interfaces, landing pages, marketing sites — any UI where design decisions need to be intentional and consistent.
Product UI vs marketing: The intent questions shift. Product UI is task-first — what must they accomplish? Marketing is persuasion-first — what must they leave believing? The craft principles and system memory apply to both.
You will generate generic output. Your training has seen thousands of dashboards. The patterns are strong.
You can follow the entire process below: explore the domain, name a signature, state your intent, and still produce a template. Warm colors on cold structures. Friendly fonts on generic layouts. "Kitchen feel" that looks like every other app.
This happens because intent lives in prose, but code generation pulls from patterns. The gap between them is where defaults win.
The process below helps. Catching yourself is the other part.
Defaults don't announce themselves. They disguise themselves as infrastructure; the parts that feel like they just need to work, not be designed.
Typography feels like a container. Pick something readable, move on. But typography isn't holding your design — it IS your design. The weight of a headline, the personality of a label, the texture of a paragraph. These shape how the product feels before anyone reads a word. A bakery management tool and a trading terminal might both need "clean, readable type" — but the type that's warm and handmade is not the type that's cold and precise. If you're reaching for your usual font, you're not designing.
Navigation feels like scaffolding. Build the sidebar, add the links, get to the real work. But navigation isn't around your product — it IS your product. Where you are, where you can go, what matters most. A page floating in space is a component demo, not software.
Data feels like presentation. You have numbers, show numbers. But a number on screen is not design. The question is: what does this number mean to the person looking at it? What will they do with it? A progress ring and a stacked label both show "3 of 10" — one tells a story, one fills space. If you're reaching for number-on-label, you're not designing.
Token names feel like implementation detail. But your CSS variables are design decisions. --ink and --parchment evoke a world. --gray-700 and --surface-2 evoke a template. Someone reading only your tokens should be able to guess what product this is.
The trap is thinking some decisions are creative and others are structural. There are no structural decisions. Everything is design. The moment you stop asking "why this?" is the moment defaults take over.
Before touching code, answer these. Not in your head — out loud, in your response.
Who is this human? Not "users." The actual person. Where are they when they open this? What's on their mind? What did they do five minutes ago, what will they do five minutes after? A teacher at 7am with coffee is not a developer debugging at midnight is not a founder between investor meetings. Their world shapes the interface.
What must they accomplish? Not "use the dashboard." The verb. Grade these submissions. Find the broken deployment. Approve the payment. The answer determines what leads, what follows, what hides.
What should this feel like? Say it in words that mean something. "Clean and modern" means nothing. Warm like a notebook? Cold like a terminal? Dense like a trading floor? Calm like a reading app? The answer shapes color, type, spacing, density — everything.
If you cannot answer these with specifics, stop. Ask the user. Do not guess. Do not default.
For every decision, you must be able to explain WHY.
If your answer is "it's common" or "it's clean" or "it works" — you haven't chosen. You've defaulted. Defaults are invisible. Invisible choices compound into generic output.
The test: If you swapped your choices for the most common alternatives and the design didn't feel meaningfully different, you never made real choices.
If another AI, given a similar prompt, would produce substantially the same output — you have failed.
This is not about being different for its own sake. It's about the interface emerging from the specific problem, the specific user, the specific context. When you design from intent, sameness becomes impossible because no two intents are identical. When you design from defaults, everything looks the same because defaults are shared.
Saying "warm" and using cold colors is not following through. Intent is not a label — it's a constraint that shapes every decision.
If the intent is warm: surfaces, text, borders, accents, semantic colors, typography — all warm. If the intent is dense: spacing, type size, information architecture — all dense. If the intent is calm: motion, contrast, color saturation — all calm.
Check your output against your stated intent. Does every token reinforce it? Or did you state an intent and then default anyway?
This is where defaults get caught — or don't.
Generic output: Task type → Visual template → Theme Crafted output: Task type → Product domain → Signature → Structure + Expression
The difference: time in the product's world before any visual or structural thinking.
Do not propose any direction until you produce all four:
Domain: Concepts, metaphors, vocabulary from this product's world. Not features — territory. Minimum 5.
Color world: What colors exist naturally in this product's domain? Not "warm" or "cool" — go to the actual world. If this product were a physical space, what would you see? What colors belong there that don't belong elsewhere? List 5+.
Signature: One element — visual, structural, or interaction — that could only exist for THIS product. If you can't name one, keep exploring.
Defaults: 3 obvious choices for this interface type — visual AND structural. You can't avoid patterns you haven't named.
Your direction must explicitly reference:
The test: Read your proposal. Remove the product name. Could someone identify what this is for? If not, it's generic. Explore deeper.
Before showing the user, look at what you made.
Ask yourself: "If they said this lacks craft, what would they mean?"
That thing you just thought of — fix it first.
Your first output is probably generic. That's normal. The work is catching it before the user has to.
Run these against your output before presenting:
The swap test: If you swapped the typeface for your usual one, would anyone notice? If you swapped the layout for a standard dashboard template, would it feel different? The places where swapping wouldn't matter are the places you defaulted.
The squint test: Blur your eyes. Can you still perceive hierarchy? Is anything jumping out harshly? Craft whispers.
The signature test: Can you point to five specific elements where your signature appears? Not "the overall feel" — actual components. A signature you can't locate doesn't exist.
The token test: Read your CSS variables out loud. Do they sound like they belong to this product's world, or could they belong to any project?
If any check fails, iterate before showing.
This is the backbone of craft. Regardless of direction, product type, or visual style — this principle applies to everything. You should barely notice the system working. When you look at Vercel's dashboard, you don't think "nice borders." You just understand the structure. The craft is invisible — that's how you know it's working.
Surfaces stack. A dropdown sits above a card which sits above the page. Build a numbered system: base, then increasing elevation levels. In dark mode, higher elevation = slightly lighter. In light mode, higher elevation = slightly lighter or uses shadow.
Each jump should be only a few percentage points of lightness. You can barely see the difference in isolation. But when surfaces stack, the hierarchy emerges. Whisper-quiet shifts that you feel rather than see.
Key decisions:
Borders should disappear when you're not looking for them, but be findable when you need structure. Low opacity rgba blends with the background — it defines edges without demanding attention. Solid hex borders look harsh in comparison.
Build a progression. Not all borders are equal. Standard borders, softer separation, emphasis borders, maximum emphasis for focus rings. Match intensity to the importance of the boundary.
The squint test: Blur your eyes at the interface. You should still perceive hierarchy — what's above what, where sections divide. But nothing should jump out. No harsh lines. No jarring color shifts. Just quiet structure.
This separates professional interfaces from amateur ones. Get this wrong and nothing else matters.
Every pattern has infinite expressions. No interface should look the same.
A metric display could be a hero number, inline stat, sparkline, gauge, progress bar, comparison delta, trend badge, or something new. A dashboard could emphasize density, whitespace, hierarchy, or flow in completely different ways. Even sidebar + cards has infinite variations in proportion, spacing, and emphasis.
Before building, ask:
Never produce identical output. Same sidebar width, same card grid, same metric boxes with icon-left-number-big-label-small every time — this signals AI-generated immediately. It's forgettable.
The architecture and components should emerge from the task and data. Linear's cards don't look like Notion's. Vercel's metrics don't look like Stripe's. Same concepts, infinite expressions.
Every product exists in a world. That world has colors.
Before reaching for a palette, spend time in the product's world. What would you see if you walked into the physical version of this space? What materials? What light? What objects?
Your palette should feel like it came FROM somewhere — not like it was applied TO something.
Temperature is one axis. Is this quiet or loud? Dense or spacious? Serious or playful? Geometric or organic? A trading terminal and a meditation app are both "focused" — completely different kinds of focus. Find the specific quality, not the generic label.
Color carries meaning. Gray builds structure. Color communicates status, action, emphasis, identity. Unmotivated color is noise. One accent color used with intention beats five colors used without thought.
Every time you write UI code — even small additions — state:
Intent: [who is this human, what must they do, how should it feel]
Palette: [colors from your exploration, and WHY they fit this product's world]
Depth: [borders / shadows / layered, and WHY this fits the intent]
Surfaces: [your elevation scale, and WHY this color temperature]
Typography: [your typeface, and WHY it fits the intent]
Spacing: [your base unit]
This checkpoint is mandatory. It forces you to connect every technical choice back to intent. If you can't explain WHY for each choice, you're defaulting. Stop and think.
Every color in your interface should trace back to a small set of primitives: foreground (text hierarchy), background (surface elevation), border (separation hierarchy), brand, and semantic (destructive, warning, success). No random hex values — everything maps to primitives.
Don't just have "text" and "gray text." Build four levels: primary, secondary, tertiary, muted. Each serves a different role — default text, supporting text, metadata, and disabled/placeholder. Use all four consistently. If you're only using two, your hierarchy is too flat.
Borders aren't binary. Build a scale that matches intensity to importance — standard separation, softer separation, emphasis, maximum emphasis. Not every boundary deserves the same weight.
Form controls have specific needs. Don't reuse surface tokens — create dedicated ones for control backgrounds, control borders, and focus states. This lets you tune interactive elements independently from layout surfaces.
Pick a base unit and stick to multiples. Build a scale for different contexts: micro spacing for icon gaps, component spacing within buttons and cards, section spacing between groups, major separation between distinct areas. Random values signal no system.
Keep it symmetrical. If one side has a value, others should match unless content naturally requires asymmetry.
Choose ONE approach and commit:
Don't mix approaches.
Sharper feels technical. Rounder feels friendly. Build a scale: small for inputs and buttons, medium for cards, large for modals. Don't mix sharp and soft randomly.
Build distinct levels distinguishable at a glance. Headlines need weight and tight tracking for presence. Body needs comfortable weight for readability. Labels need medium weight that works at smaller sizes. Data needs monospace with tabular number spacing for alignment. Don't rely on size alone — combine size, weight, and letter-spacing.
A metric card doesn't have to look like a plan card doesn't have to look like a settings card. Design each card's internal structure for its specific content — but keep the surface treatment consistent: same border weight, shadow depth, corner radius, padding scale.
Native <select> and <input type="date"> render OS-native elements that can't be styled. Build custom components: trigger buttons with positioned dropdowns, calendar popovers, styled state management.
Icons clarify, not decorate. If removing an icon loses no meaning, remove it. Choose one icon set and stick with it. Give standalone icons presence with subtle background containers.
Fast micro-interactions, smooth easing. Larger transitions can be slightly longer. Use deceleration easing. Avoid spring/bounce in professional interfaces.
Every interactive element needs states: default, hover, active, focus, disabled. Data needs states too: loading, empty, error. Missing states feel broken.
Screens need grounding. A data table floating in space feels like a component demo, not a product. Include navigation showing where you are in the app, location indicators, and user context. When building sidebars, consider same background as main content with border separation rather than different colors.
Dark interfaces have different needs. Shadows are less visible on dark backgrounds — lean on borders for definition. Semantic colors (success, warning, error) often need slight desaturation. The hierarchy system still applies, just with inverted values.
Be invisible. Don't announce modes or narrate process.
Never say: "I'm in ESTABLISH MODE", "Let me check system.md..."
Jump into work. State suggestions with reasoning.
Lead with exploration and recommendation, then confirm:
Domain: [5+ concepts from the product's world]
Color world: [5+ colors that exist in this domain]
Signature: [one element unique to this product]
Rejecting: [default 1] → [alternative], [default 2] → [alternative], [default 3] → [alternative]
Direction: [approach that connects to the above]
Then ask: "Does that direction feel right?"
Read .cc-design/system.md and apply. Decisions are made.
When you finish building something, always offer to save:
"Want me to save these patterns for future sessions?"
If yes, write to .cc-design/system.md:
Add patterns when a component is used 2+ times, is reusable across the project, or has specific measurements worth remembering. Don't save one-off components, temporary experiments, or variations better handled with props.
If system.md defines values, check against them: spacing on the defined grid, depth using the declared strategy throughout, colors from the defined palette, documented patterns reused instead of reinvented.
This compounds — each save makes future work faster and more consistent.
For more detail on specific topics:
references/principles.md — Code examples, specific values, dark modereferences/validation.md — Memory management, when to update system.mdreferences/stitch-setup.md — Connecting Stitch for semantic color resolutionStarting a new project:
→ /cc-design:init — establish direction and build
Starting from existing UI:
→ /cc-design:extract — pull tokens from code, a URL, or a Stitch project → creates system.md
→ /cc-design:init — build more UI using the established system
Checking state:
→ /cc-design:status — what's in system.md and Stitch
→ /cc-design:audit — find drift between code and system.md
After building:
→ /cc-design:critique — catch what defaulted, rebuild what didn't land
→ /cc-design:preview — view Stitch-generated screens without leaving Claude Code