Route to HoloViz sub-skills. Use for ANY task involving interactive plots, dashboards, data apps, reactive parameters, or custom JS/Python components in the HoloViz ecosystem (Panel, hvPlot, HoloViews, Param), including Panel apps that embed Bokeh, Matplotlib, or Plotly figures. A named plotting library (e.g. bokeh) is not a reason to skip this skill.
Build interactive dashboards, tools, and data apps with HoloViz Panel. Use when the user needs widgets, layouts, templates, or reactive server-side Python web applications. Do not use for standalone plots without widgets (use hvPlot).
Build interactive visualizations with HoloViews elements, opts, streams, and operations. Use when composing plots from element primitives (Curve, Points, Bars, NdOverlay), customizing Bokeh tools/tooltips/formatters, using DynamicMap, streams, or link_selections. Do not use for simple DataFrame plotting (use hvPlot) or Panel app structure (use Panel).
Plot DataFrames and datasets using a Pandas .plot()-like API for Pandas, Polars, Xarray, DuckDB, Dask, and GeoPandas. Use when the user asks to visualize, plot, or chart tabular or multidimensional data. Do not use for pie charts or 3D viz, or for element composition, streams, or custom Bokeh tools/tooltips (use HoloViews).
Define Python classes with typed, validated, reactive parameters using Param. Use when building classes with constrained attributes, reactive dependencies between values, or dynamic option cascading. Load alongside the Panel skill for any Panel app using Parameterized classes.
Maintain and contribute to HoloViz packages. Use when reviewing PRs, refactoring code, writing tests, or updating docs in HoloViz repositories (Panel, hvPlot, HoloViews, Param, etc.).
Writing a clear pull request description for HoloViz packages. Use when drafting or reviewing the description, summary, or write-up of a PR in any HoloViz repository.
Code cleanup and refactoring guidelines for HoloViz packages. Use when reviewing PRs, refactoring code, or checking adherence to code quality standards in any HoloViz repository.