chart-visualization

name	Chart Visualization
description	Use this built-in skill for chart construction and data storytelling from structured tabular results. The workflow is organized from the AntV chart-visualization playbook, but current default output is ECharts-compatible option JSON for local rendering.
category	Generic
version	v1

Chart Visualization Skill

Use this skill when the user already has structured rows and needs a chart, trend view, or lightweight data story.

This built-in skill keeps the AntV chart-visualization workflow discipline:

• choose chart type from the question and data shape
• keep annotations and titles concise
• preserve readable axes and legend defaults
• prefer data storytelling over decorative chart output

Current default artifact:

• ECharts option JSON via python3 scripts/build_echarts_option.py

Typical flow:

1. Prepare or fetch rows with the platform or SQL skills.
2. If needed, reshape locally with Python Analysis Skill.
3. Generate a chart option:
   • python3 scripts/build_echarts_option.py --input rows.json --chart-type line --x date --y count