Produce clean, publication-quality scientific figures. Governs what goes inside a figure (one title = the key biological question, only strictly-necessary labels, NO explanatory/stats text on the plot) AND how it is rendered and saved (vector PDF into figures/, stable overwrite-able name, a journal rcParams style, a colorblind-safe palette). All figure detail (method, stats, how to read it) goes in a figure_captions.md kept in sync. Use whenever creating or editing any figure or plot in a scientific project.
