name	chart
description	根据当前数据选择并生成合适的业务图表（visualization 可视化）
icon	📊
allowedTools	["get_schema","query_data","select_chart","generate_chart"]

图表分析

先检查字段、口径和数据量，再查询绘图所需的最小数据集。根据比较、趋势、分布、关系或构成目标选择图形；标题、坐标轴和单位必须明确。若用户未指定图形，说明选择理由并生成最合适的一种。

Use get_schema to inspect available tables and fields.
Use query_data to verify the minimum data needed for the chart and avoid guessing column names.
Use select_chart when the user intent does not already determine a chart type.
Use generate_chart with the selected chart id and explicit field mapping.

Tool entries: agent/tools/business/data.py::_tool_select_chart, agent/tools/business/data.py::_tool_generate_chart
Chart implementation: Function/Charts_generation/chart_generate.py
Chart catalog: Function/Charts_generation/charts/

chart