Agent Skill
2/7/2026

layerchart-svelte5

LayerChart Svelte 5 patterns. Use for chart components with tooltip snippets, Chart context access, and all Svelte 5 snippet patterns for tooltips, gradients, highlights, and axes.

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spences10
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npx skills add spences10/svelte-skills-kit

SKILL.md

Namelayerchart-svelte5
DescriptionLayerChart Svelte 5 patterns. Use for chart components with tooltip snippets, Chart context access, and all Svelte 5 snippet patterns for tooltips, gradients, highlights, and axes.

name: layerchart-svelte5

prettier-ignore

description: LayerChart Svelte 5 patterns. Use for chart components with tooltip snippets, Chart context access, and all Svelte 5 snippet patterns for tooltips, gradients, highlights, and axes.

LayerChart Svelte 5

Docs: next.layerchart.com (NOT layerchart.com - that's Svelte 4)

Install

npm i layerchart@next d3-scale

CRITICAL: Use @next tag. Stable (1.x) is Svelte 4 only.

Quick Start

<Chart {data} x="date" y="value" tooltip={{ mode: 'bisect-x' }}>
	<Svg><Area class="fill-primary/20" /><Highlight points /></Svg>
	<Tooltip.Root>{#snippet children({ data })}{data.value}{/snippet}</Tooltip.Root>
</Chart>

Core Patterns

  • Tooltip: {#snippet children({ data })} - NOT let:data
  • Chart context: {#snippet children({ context })}
  • Gradient: {#snippet children({ gradient })}
  • Enable tooltip: tooltip={{ mode: 'band' | 'bisect-x' }}
  • Type data: {#snippet children({ data }: { data: MyType })}

Tooltip Modes

ModeUse Case
bandBar charts (scaleBand)
bisect-xTime-series area/line
quadtree-xArea (nearest x)
quadtreeScatter plots

References

Skills Info
Original Name:layerchart-svelte5Author:spences10