# recharts

This skill guides React chart work with Recharts. Use it for line, bar, area, pie, scatter, and mixed visualizations.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1100 installs · ★ 1
- Author: andy-spike
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/andy-spike/skills/tree/HEAD/skills/recharts/SKILL.md
- Updated: 2026-03-21
- HTML: https://affpapa.org/en/nevibecode/skills/recharts

## What it does

The skill covers declarative React charts built with Recharts, a library based on D3. It explains how to map object data through `dataKey` and choose among line, area, bar, pie, scatter, radar, radial bar, and composed charts.

It walks through chart composition with axes, grids, tooltips, legends, and data series. The material also covers responsive sizing, stacked series, rounded bars, custom styling, and chart configuration for accessibility and performance.

Install the library with `npm install recharts` before using these patterns. A `ResponsiveContainer` needs a parent with defined dimensions, and its height must be numeric rather than percentage-based.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add andy-spike/skills --skill recharts -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/recharts/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/recharts/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add andy-spike/skills --skill recharts -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/recharts/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add andy-spike/skills --skill recharts -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/recharts/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install andy-spike/skills recharts
```

2. **Manually: put the files in place**
- File: `.github/skills/recharts/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add andy-spike/skills --skill recharts -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/andy-spike/skills --path skills/recharts
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/recharts/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add andy-spike/skills --skill recharts -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/andy-spike/skills/tree/HEAD/skills/recharts/SKILL.md

## When to use it
- build a line chart from an array of objects
- plot sales and profit as grouped or stacked bars
- configure axes, tooltips, and legends
- create pie, donut, or scatter visualizations
- combine area, bar, and line series

## Example prompts
- Build a responsive Recharts line chart from `data` with axes, a grid, a tooltip, and a legend.
- Create a composed chart that compares sales and profit through `dataKey` mappings.
- Make a donut chart with category names, a custom inner radius, and a legend.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 1577d8738c0befac.

BEGIN THIRD-PARTY FILE 1577d8738c0befac
````text
---
name: recharts
description: Build composable, responsive React charts with Recharts library. Use when creating data visualizations including line charts, area charts, bar charts, pie charts, scatter plots, and composed charts. Handles chart customization, responsive sizing, tooltips, legends, axes configuration, performance optimization, and accessibility.
---

# Recharts

React charting library built on top of D3 for composable, declarative data visualization.

## Quick Start

### 1. Install Recharts

```bash
npm install recharts
```

### 2. Basic Chart Structure

All Recharts charts follow the same pattern:

```jsx
import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer } from 'recharts';

const data = [
  { name: 'Jan', sales: 4000, profit: 2400 },
  { name: 'Feb', sales: 3000, profit: 1398 },
  { name: 'Mar', sales: 2000, profit: 9800 },
];

<ResponsiveContainer width="100%" height={300}>
  <LineChart data={data}>
    <CartesianGrid strokeDasharray="3 3" />
    <XAxis dataKey="name" />
    <YAxis />
    <Tooltip />
    <Legend />
    <Line type="monotone" dataKey="sales" stroke="#8884d8" />
    <Line type="monotone" dataKey="profit" stroke="#82ca9d" />
  </LineChart>
</ResponsiveContainer>
```

## Core Concepts

### Data Format

Recharts expects data as an **array of objects**. Each object represents a data point:

```javascript
const data = [
  { month: 'Jan', revenue: 4000, expenses: 2400 },
  { month: 'Feb', revenue: 3000, expenses: 1398 },
];
```

Use `dataKey` props to map object properties to chart components:
- `dataKey="revenue"` - maps to the revenue property
- `dataKey={(entry) => entry.revenue - entry.expenses}` - function for computed values

### Component Composition

Charts are built by nesting specialized components:

**Sizing**: Use the `responsive` prop (v3.3+), `ResponsiveContainer` wrapper, or set `width`/`height` directly

**Chart types** (choose one):
- `LineChart` - Line and area visualizations
- `BarChart` - Bar and column charts
- `AreaChart` - Stacked and filled area charts
- `PieChart` - Pie and donut charts
- `ScatterChart` - Scatter plots and bubble charts
- `ComposedChart` - Mixed chart types
- `RadarChart` - Radar/spider charts
- `RadialBarChart` - Circular bar charts

**Common child components**:
- `XAxis` / `YAxis` - Axis configuration
- `CartesianGrid` - Grid lines
- `Tooltip` - Hover information
- `Legend` - Series identification
- `Line` / `Bar` / `Area` / `Pie` - Data series visualization

## Chart Patterns by Type

### Line Charts

```jsx
<LineChart data={data}>
  <XAxis dataKey="name" />
  <YAxis />
  <CartesianGrid strokeDasharray="3 3" />
  <Tooltip />
  <Legend />
  <Line type="monotone" dataKey="value" stroke="#8884d8" strokeWidth={2} dot={{ r: 4 }} />
</LineChart>
```

**Key props**:
- `type`: "monotone" (smooth), "linear", "step", "natural"
- `stroke`: line color
- `strokeWidth`: line thickness
- `dot`: point styling (set to `false` to hide)
- `activeDot`: hovered point styling
- `connectNulls`: true to connect gaps

### Area Charts

```jsx
<AreaChart data={data}>
  <defs>
    <linearGradient id="colorValue" x1="0" y1="0" x2="0" y2="1">
      <stop offset="5%" stopColor="#8884d8" stopOpacity={0.8}/>
````
END THIRD-PARTY FILE 1577d8738c0befac

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First 3244 of 17284 bytes. © andy-spike · MIT · https://github.com/andy-spike/skills/tree/HEAD/skills/recharts/SKILL.md

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---
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