interactive-dashboard-builder_skill

Overview

This skill builds self-contained interactive HTML dashboards using Chart.js, dropdown and date filters, sortable tables, and professional CSS. It produces single-file dashboards that run without a server and are easy to share. The patterns focus on reusable components: KPI cards, chart containers, filter controls, and update logic to keep visuals in sync.

How this skill works

Embed your dataset as a JavaScript constant and instantiate a Dashboard class that manages rawData, filteredData, and chart instances. The dashboard initializes filters, renders KPI cards, creates Chart.js charts (line, bar, doughnut), and renders a sortable table. Filter inputs call applyFilters(), which recomputes filteredData and updates KPIs, charts, and the table in place.

When to use it

• Create shareable reports that must run in a browser with no backend.
• Prototype interactive analytics or executive summaries quickly from CSV/JSON data.
• Publish dashboards to stakeholders who need a single-file deliverable.
• Build embedded visuals for documentation or offline presentations.
• Generate lightweight monitoring pages that update when data is replaced.

Best practices

• Embed only the necessary dataset size; large datasets should be aggregated before embedding.
• Populate filter dropdowns from unique field values so options reflect the data.
• Use Chart.js options to format tooltips and axes with the provided formatValue utility.
• Disable chart animation on updates (chart.update('none')) for instant filter responses.
• Design KPIs to show current value and period-over-period change for quick context.

Example use cases

• Sales performance dashboard with region and product filters, monthly revenue line chart, and top products bar chart.
• Customer support report showing ticket volume over time, SLA KPIs, and a doughnut chart of issue categories.
• HR headcount dashboard with date-range selector, department breakdown, and a sortable employee summary table.
• Marketing campaign report that shows spend vs conversions, channel breakdown, and filterable time windows.