chart-generator

name	chart-generator
description	Generate downloadable SVG charts from structured data, including radar, bar, line, pie, doughnut, scatter, and score distribution charts.
when_to_use	Use this skill when the user asks to create, export, or generate a chart, graph, radar chart, spider chart, bar chart, line chart, pie chart, doughnut chart, scatter chart, score distribution chart, score chart, comparison chart, or data visualization from provided data. For casual, vague, incomplete, or non-structured chart and data visualization requests, first route through prompt-professionalizer to optimize the visualization prompt and extract chart requirements, then call this skill.
provider_type	builtin
provider_id	chart_generator
runtime_type	tool
tools	["generate_chart"]
supported_callers	["aichat","agent"]
max_calls_per_turn	5
timeout_seconds	5
tool_governance	{"generate_chart":{"tool_id":"chart.generate","skill_id":"chart-generator","domain":"files","effect":"create","asset_type":"file","risk_level":"medium","requires_asset_resolution":false,"reversible":true,"bulk_sensitive":false,"external_side_effect":false,"permission_scopes":["file:create"],"default_approval_policy":"never_ask","allowed_permission_tiers":["basic","advanced","full"],"audit_required":true,"idempotency_required":false}}
display	{"icon":"chart-no-axes-combined","category":"data_analysis","scenarios":["data_insights","content_creation","office_collaboration"],"label":{"en_US":"Chart Generator","zh_Hans":"图表生成器"},"description":{"en_US":"Designed for reports and data analysis that need visual evidence; turns structured data into SVG radar, bar, line, pie, doughnut, scatter, or distribution charts.","zh_Hans":"适用于汇报和数据分析中的可视化展示，可将结构化数据生成雷达图、柱状图、折线图、饼图、环形图、散点图或分布图。"},"when_to_use":{"en_US":"Use when the answer should include a generated chart artifact.","zh_Hans":"当回答需要生成图表文件时使用。"},"tags":{"en_US":["Chart","Visualization","Data"],"zh_Hans":["图表","可视化","数据"]}}

Chart Generator Skill

Use this skill to generate downloadable SVG chart artifacts from structured data. Supported chart types are radar, bar, line, pie, doughnut, scatter, and score_distribution; the structure is designed so future chart types can be added with a reference document and builtin renderer.

Supported Chart Types

• radar: radar/spider charts for multi-dimensional score profiles and personal-vs-average comparisons.
• bar: bar/column charts for category comparison, grouped comparison, and score comparison.
• line: line charts for trends, ordered stages, time series, and score changes.
• pie: pie charts for proportions, composition, and share-of-whole views.
• doughnut: doughnut/ring charts for proportions with a visible center total.
• scatter: scatter plots for two-variable relationships such as rank vs score.
• score_distribution: score band distribution charts from raw scores or precomputed band counts.

Workflow

1. Determine whether the user explicitly requested a chart_type: radar, bar, line, pie, doughnut, scatter, or score_distribution.
2. If the request is casual, vague, incomplete, or not already structured for a chart or visualization tool, first use prompt-professionalizer to produce an optimized data visualization prompt and chart requirements.
3. If the user only says a generic request such as "generate a chart", "make a graph", "生成图表", "做个图", or "可视化", call request_user_input before calling generate_chart.
4. Read exactly one reference document for that chart type before calling generate_chart.
5. Convert the user's data into the JSON payload documented in the selected reference.
6. Validate that all required data is present and internally consistent.
7. Call call_skill_tool with tool_name set to generate_chart.
8. If the user explicitly asks to save, create, add, upload, or import the chart into File Management or the current Files page, first generate the temporary chart artifact here, then call with the returned / and destination filename.