dsh-smart-charts: Convert CSV / Excel / JSON data to interactive ECharts HTML

dsh-smart-charts is a Smart Charts skill plugin for DeepSeek Harness designed to automatically convert CSV, Excel, or JSON tabular data into interactive ECharts HTML pages. Supporting 26 chart types and 3 theme presets, the plugin features automatic encoding detection, intelligent multi-file merging, and Pandas-based data cleaning and conversion. It ensures secure code execution through a three-layer sandbox. Its core advantages include fully offline rendering (inline ECharts JS, no external dependencies), interactive visualization (supporting zooming, hover tooltips, and image saving), and structured error output, facilitating Agent parsing and retry. Installation supports GitHub direct installation or local tarball.