Grammar of Graphics and Declarative Visualization Overview Use this skill as the default implementation path for many tabular charts. Declarative grammars are often the fastest, clearest, and most maintainable route when the chart can be expressed as data plus marks plus encodings plus transforms. This skill covers Vega-Lite, Vega, and Observable Plot. Default to the highest-level tool that cleanly expresses the needed chart and interaction. Selection Rules 1. Use Observable Plot for fast exploratory and explanatory charts in JavaScript when concise code is valuable. 2. Use Vega-Lite for port…