This handles all your matplotlib and seaborn charting in Claude's headless GPU environment. It automatically configures the Agg backend so plots actually render, sets publication quality defaults at 300 DPI, and includes a colorblind safe palette out of the box. The skill doc gives you copy paste templates for the usual suspects: bar charts, line plots, scatter plots with both continuous and categorical coloring, heatmaps, histograms with KDE overlays, and box plots. The multi panel layout option is clutch for analysis summaries where you want everything in one image. One thing to remember is you must call read_file on every saved PNG or the user won't see it inline. Solid if you're tired of fighting matplotlib configuration every time.
npx skills add https://github.com/langchain-ai/deepagents --skill data-visualization