blog-chart

Generates dark-mode-compatible inline SVG charts for blog posts. Invoked internally by blog-write and blog-rewrite when chart-worthy data is identified. Not a standalone user-facing command.

Select based on the data pattern. Diversity is mandatory — never repeat a type within one post.

| Before/after comparison | Grouped bar chart | | Ranked factors / correlations | Lollipop chart | | Parts of whole / market share | Donut chart | | Trend over time | Line chart | | Percentage improvement | Horizontal bar chart | | Distribution / range | Area chart | | Multi-dimensional scoring | Radar chart |

Generate dark-mode-compatible inline SVG data visualization charts for blog posts. Supports horizontal bar, grouped bar, donut, line, lollipop, area, and radar charts with automatic platform detection (HTML vs JSX/MDX). Enforces chart type diversity, accessible markup (role=img, aria-label), source attribution, and transparent backgrounds. Use when user says "blog chart", "generate chart", "data visualization", "svg chart", "blog graph", "visualize data", or when the blog-write workflow identifies chart-worthy data points (3+ comparable metrics, trends, before/after data). Source: agricidaniel/claude-blog.