What problem does it solve? Turning raw data into interactive web charts requires writing repetitive D3.js boilerplate, choosing the right chart type, and handling styling details like colors, animations, and responsiveness. This Skill provides ready-made guidance and templates so chart requests are fulfilled quickly and consistently. ## Core Features & Use Cases - Multiple Chart Types: Supports bar charts for comparisons, line charts for trends, pie and donut charts for proportions, and scatter plots for correlations. - HTML Template: Provides a base HTML template loading D3.js v7 from CDN with a chart container ready for custom code. - Style Guidelines: Enforces modern gradient color palettes, smooth transition animations, responsive SVG viewBox scaling, and accessibility via tooltips and labels. - Use Case: When a user asks "make a chart of monthly sales", the Skill produces a complete standalone HTML page with a styled, animated, responsive D3.js bar or line chart. ## Quick Start Ask the assistant to create a D3.js bar chart visualizing your dataset as a standalone HTML page.