Data Visualization
Data visualization with chart selection, color theory, and annotation best practices.
Install
npx skills add inference-sh/skills --skill data-visualization -g -a claude-code -y- Repository
- inference-sh/skills795
- Category
- Design
- Updated
- 20d ago
- License
- See repository
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- No, instructions only
What it does
Data visualization with chart selection, color theory, and annotation best practices. Covers chart types (bar, line, scatter, heatmap), axes rules, and storytelling with data. Use for: charts, graphs, dashboards, reports, presentations, infographics, data stories. Triggers: data visualization, chart, graph, data chart, bar chart, line chart, scatter plot, data viz, visualization, dashboard chart, infographic data, data presentation, chart design, plot, heatmap, pie chart alternative
Install the belt CLI skill:
npx skills add belt-sh/cli
Data Visualization
Create clear, effective data visualizations via inference.sh CLI.
Quick Start
Requires inference.sh CLI (
belt). Install instructions
belt login
# Generate a chart with Python
belt app run infsh/python-executor --input '{
"code": "import matplotlib.pyplot as plt\nimport matplotlib\nmatplotlib.use(\"Agg\")\n\nmonths = [\"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\"]\nrevenue = [42, 48, 55, 61, 72, 89]\n\nfig, ax = plt.subplots(figsize=(10, 6))\nax.bar(months, revenue, color=\"#3b82f6\", width=0.6)\nax.set_ylabel(\"Revenue ($K)\")\nax.set_title(\"Monthly Revenue Growth\", fontweight=\"bold\")\nfor i, v in enumerate(revenue):\n ax.text(i, v + 1, f\"${v}K\", ha=\"center\", fontweight=\"bold\")\nplt.tight_layout()\nplt.savefig(\"revenue.png\", dpi=150)\nprint(\"Saved\")"
}'
Chart Selection Guide
Which Chart for Which Data?
| Data Relationship | Best Chart | Never Use |
|---|---|---|
| Change over time | Line chart | Pie chart |
| Comparing categories | Bar chart (horizontal for many categories) | Line chart |
| Part of a whole | Stacked bar, treemap | Pie chart (controversial but: bar is always clearer) |
| Distribution | Histogram, box plot | Bar chart |
| Correlation | Scatter plot | Bar chart |
| Ranking | Horizontal bar chart | Vertical bar, pie |
| Geographic | Choropleth map | Bar chart |
| Composition over time | Stacked area chart | Multiple pie charts |
| Single metric | Big number (KPI card) | Any chart (overkill) |
| Flow / process | Sankey diagram | Bar chart |
The Pie Chart Problem
Pie charts are almost always the wrong choice:
