MCPInstall

mui

by davila7Frontend & Design

Material-UI v7 component library patterns including sx prop styling, theme integration, responsive design, and MUI-specific hooks. Use when working with MUI components, styling with sx prop, theme customization, or MUI utilities.

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/davila7/claude-code-templates --skill mui
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads mui automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

MUI v7 Patterns

Purpose

Material-UI v7 (released March 2025) patterns for component usage, styling with sx prop, theme integration, and responsive design.

Note: MUI v7 breaking changes from v6:

  • Deep imports no longer work - use package exports field
  • onBackdropClick removed from Modal - use onClose instead
  • All components now use standardized slots and slotProps pattern
  • CSS layers support via enableCssLayer config (works with Tailwind v4)

When to Use This Skill

  • Styling components with MUI sx prop
  • Using MUI components (Box, Grid, Paper, Typography, etc.)
  • Theme customization and usage
  • Responsive design with MUI breakpoints
  • MUI-specific utilities and hooks

Quick Start

Basic MUI Component

import { Box, Typography, Button, Paper } from '@mui/material';
import type { SxProps, Theme } from '@mui/material';

const styles: Record<string, SxProps<Theme>> = {
  container: {
    p: 2,
    display: 'flex',
    flexDirection: 'column',
    gap: 2,
  },
  header: {
    mb: 3,
    fontSize: '1.5rem',
    fontWeight: 600,
  },
};

function MyComponent() {
  return (
    <Paper sx={styles.container}>
      <Typography sx={styles.header}>
        Title
      </Typography>
      <Button variant="contained">
        Action
      </Button>
    </Paper>
  );
}

Styling Patterns

Inline Styles (< 100 lines)

For components with simple styling, define styles at the top:

import type { SxProps, Theme } from '@mui/material';

const componentStyles: Record<string, SxProps<Theme>> = {
  container: {
    p: 2,
    display: 'flex',
    flexDirection: 'column',
  },
  header: {
    mb: 2,
    color: 'primary.main',
  },
  button: {
    mt: 'auto',
    alignSelf: 'flex-end',
  },
};

function Component() {
  return (
    <Box sx={componentStyles.container}>
      <Typography sx={componentStyles.header}>Header</Typography>
      <Button sx={componentStyles.button}>Action</Button>
    </Box>
  );
}

Separate Styles File (>= 100 lines)

For complex components, create separate style file:

// UserProfile.styles.ts
import type { SxProps, Theme } from '@mui/material';

export const userProfileStyles: Record<string, SxProps<Theme>> = {
  container: {
    p: 3,
    maxWidth: 800,
    mx: 'auto',
  },
  header: {
    display: 'flex',
    justifyContent: 'space-between',
    alignItems: 'center',
    mb: 3,
  },
  // ... many more styles
};

// UserProfile.tsx
import { userProfileStyles as styles } from './UserProfile.styles';

function UserProfile() {
  return <Box sx={styles.container}>...</Box>;
}

Common Components

Layout Components

// Box - Generic container
<Box sx={{ p: 2, bgcolor: 'background.paper' }}>
  Content
</Box>

// Paper - Elevated surface
<Paper elevation={2} sx={{ p: 3 }}>
  Content
</Paper>

// Container - Centered content with max-width
<Container maxWidth="lg">
  Content
</Container>

// Stack - Flex container with spacing
<Stack spacing={2} direction="row">
  <Item />
  <Item />
</Stack>

Grid System

import { Grid } from '@mui/material';

// 12-column grid
<Grid container spacing={2}>
  <Grid item xs={12} md={6}>
    Left half
  </Grid>
  <Grid item xs={12} md={6}>
    Right half
  </Grid>
</Grid>

// Responsive grid
<Grid container spacing={3}>
  <Grid item xs={12} sm={6} md={4} lg={3}>
    Card
  </Grid>
  {/* Repeat for more cards */}
</Grid>

Typography

<Typography variant="h1">Heading 1</Typography>
<Typography variant="h2">Heading 2</Typography>
<Typography variant="body1">Body text</Typography>
<Typography variant="caption">Small text</Typography>

// With custom styling
<Typography
  variant="h4"
  sx={{
    color: 'primary.main',
    fontWeight: 600,
    mb: 2,
  }}
>
  Custom Heading
</Typography>

Buttons

// Variants
<Button variant="contained">Contained</Button>
<Button variant="outlined">Outlined</Button>
<Button variant="text">Text</Button>

// Colors
<Button variant="contained" color="primary">Primary</Button>
<Button variant="contained" color="secondary">Secondary</Button>
<Button variant="contained" color="error">Error</Button>

// With icons
import { Add as AddIcon } from '@mui/icons-material';

<Button startIcon={<AddIcon />}>Add Item</Button>

Theme Integration

Using Theme Values

import { useTheme } from '@mui/material';

function Component() {
  const theme = useTheme();

  return (
    <Box
      sx={{
        p: 2,
        bgcolor: theme.palette.primary.main,
        color: theme.palette.primary.contrastText,
        borderRadius: theme.shape.borderRadius,
      }}
    >
      Themed box
    </Box>
  );
}

Theme in sx Prop

<Box
  sx={{
    // Access theme in sx
    color: 'primary.main',          // theme.palette.primary.main
    bgcolor: 'background.paper',     // theme.palette.background.paper
    p: 2,                            // theme.spacing(2)
    borderRadius: 1,                 // theme.shape.borderRadius
  }}
>
  Content
</Box>

// Callback for advanced usage
<Box
  sx={(theme) => ({
    color: theme.palette.primary.main,
    '&:hover': {
      color: theme.palette.primary.dark,
    },
  })}
>
  Hover me
</Box>

Responsive Design

Breakpoints

// Mobile-first responsive values
<Box
  sx={{
    width: {
      xs: '100%',    // 0-600px
      sm: '80%',     // 600-900px
      md: '60%',     // 900-1200px
      lg: '40%',     // 1200-1536px
      xl: '30%',     // 1536px+
    },
  }}
>
  Responsive width
</Box>

// Responsive display
<Box
  sx={{
    display: {
      xs: 'none',    // Hidden on mobile
      md: 'block',   // Visible on desktop
    },
  }}
>
  Desktop only
</Box>

Responsive Typography

<Typography
  sx={{
    fontSize: {
      xs: '1rem',
      md: '1.5rem',
      lg: '2rem',
    },
    lineHeight: {
      xs: 1.5,
      md: 1.75,
    },
  }}
>
  Responsive text
</Typography>

Forms

import { TextField, Stack, Button } from '@mui/material';

<Box component="form" onSubmit={handleSubmit}>
  <Stack spacing={2}>
    <TextField
      label="Email"
      type="email"
      value={email}
      onChange={(e) => setEmail(e.target.value)}
      fullWidth
      required
      error={!!errors.email}
      helperText={errors.email}
    />
    <Button type="submit" variant="contained">Submit</Button>
  </Stack>
</Box>

Common Patterns

Card Component

import { Card, CardContent, CardActions, Typography, Button } from '@mui/material';

<Card>
  <CardContent>
    <Typography variant="h5" component="div">
      Title
    </Typography>
    <Typography variant="body2" color="text.secondary">
      Description
    </Typography>
  </CardContent>
  <CardActions>
    <Button size="small">Learn More</Button>
  </CardActions>
</Card>

Dialog/Modal

import { Dialog, DialogTitle, DialogContent, DialogActions, Button } from '@mui/material';

<Dialog open={open} onClose={handleClose}>
  <DialogTitle>Confirm Action</DialogTitle>
  <DialogContent>
    Are you sure you want to proceed?
  </DialogContent>
  <DialogActions>
    <Button onClick={handleClose}>Cancel</Button>
    <Button onClick={handleConfirm} variant="contained">
      Confirm
    </Button>
  </DialogActions>
</Dialog>

Loading States

import { CircularProgress, Skeleton } from '@mui/material';

// Spinner
<Box sx={{ display: 'flex', justifyContent: 'center', p: 3 }}>
  <CircularProgress />
</Box>

// Skeleton
<Stack spacing={1}>
  <Skeleton variant="text" width="60%" />
  <Skeleton variant="rectangular" height={200} />
  <Skeleton variant="text" width="40%" />
</Stack>

MUI-Specific Hooks

useMuiSnackbar

import { useMuiSnackbar } from '@/hooks/useMuiSnackbar';

function Component() {
  const { showSuccess, showError, showInfo } = useMuiSnackbar();

  const handleSave = async () => {
    try {
      await saveData();
      showSuccess('Saved successfully');
    } catch (error) {
      showError('Failed to save');
    }
  };

  return <Button onClick={handleSave}>Save</Button>;
}

Icons

import { Add as AddIcon, Delete as DeleteIcon } from '@mui/icons-material';
import { Button, IconButton } from '@mui/material';

<Button startIcon={<AddIcon />}>Add</Button>
<IconButton onClick={handleDelete}><DeleteIcon /></IconButton>

Best Practices

1. Type Your sx Props

import type { SxProps, Theme } from '@mui/material';

// ✅ Good
const styles: Record<string, SxProps<Theme>> = {
  container: { p: 2 },
};

// ❌ Avoid
const styles = {
  container: { p: 2 }, // No type safety
};

2. Use Theme Tokens

// ✅ Good: Use theme tokens
<Box sx={{ color: 'primary.main', p: 2 }} />

// ❌ Avoid: Hardcoded values
<Box sx={{ color: '#1976d2', padding: '16px' }} />

3. Consistent Spacing

// ✅ Good: Use spacing scale
<Box sx={{ p: 2, mb: 3, mt: 1 }} />

// ❌ Avoid: Random pixel values
<Box sx={{ padding: '17px', marginBottom: '25px' }} />

Additional Resources

For more detailed patterns, see:

  • styling-guide.md - Advanced styling patterns
  • component-library.md - Component examples
  • theme-customization.md - Theme setup

FAQ

What does the mui skill do?

Material-UI v7 component library patterns including sx prop styling, theme integration, responsive design, and MUI-specific hooks. Use when working with MUI components, styling with sx prop, theme customization, or MUI utilities.

How do I install mui?

Run npx skills add https://github.com/davila7/claude-code-templates --skill mui in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/mui/ (personal) or .claude/skills/mui/ (project).

Which AI agents can use mui?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is mui safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains mui?

It is published by davila7 in davila7/claude-code-templates. It has 1,091 recorded installs.

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