Chart Visualization

What it does

When your agent uses it

• Wants to visualize data
• Tasks that involve HTML artifacts

Example prompts

• “/chart-visualization”

Requirements

• Node.js

Workflow steps

4 steps, taken from the step headings in SKILL.md.

1. 1Intelligent Chart Selection
2. 2Parameter Extraction
3. 3Chart Generation
4. 4Result Return

What it can do on your machine

Read from SKILL.md and the folder at commit 814bde3. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/, which the agent can run.

  Shell commands in SKILL.md call:

  • node

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • github.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Chart Visualization loads about 2.1k tokens when it runs, and up to ~9.2k if it reads all its reference files. Until then it costs about 83 tokens; SKILL.md has 722 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~83

When it runs · the whole SKILL.md, loaded when a task matches

~2.1k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~9.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from stophobia/deerflow2.0-enhanced at commit 814bde3, republished under its MIT licence (© stophobia). 722 words, ~2,131 tokens.

name

chart-visualization

description

This skill should be used when the user wants to visualize data. It intelligently selects the most suitable chart type from 26 available options, extracts parameters based on detailed specifications, and generates a chart image using a JavaScript script. Supports both static images and interactive HTML charts.

dependency.nodejs

>=18.0.0

{
  "tool": "generate_chart_type_name",
  "args": {
    "data": [...],
    "title": "...",
    "theme": "...",
    "style": { ... }
  }
}

{
  "tool": "generate_chart_type_name",
  "args": {
    "data": [...],
    "title": "...",
    "theme": "...",
    "interactive": true,
    "style": { ... }
  }
}

node ./scripts/generate.js '<payload_json>'

{
  "tool": "generate_line_chart",
  "args": {
    "data": [
      {"month": "Jan", "value": 120},
      {"month": "Feb", "value": 150},
      {"month": "Mar", "value": 180}
    ],
    "title": "Monthly Sales Trend",
    "interactive": true
  }
}

node ./scripts/generate.js '<payload>'

{
  "tool": "generate_3d_bar_chart",
  "args": {
    "data": [...],
    "title": "3D Sales Comparison",
    "theme": "dark"
  }
}

{
  "tool": "generate_dashboard",
  "args": {
    "charts": [
      {"type": "line", "data": [...], "title": "Trend"},
      {"type": "bar", "data": [...], "title": "Comparison"},
      {"type": "pie", "data": [...], "title": "Distribution"}
    ],
    "layout": "grid",
    "theme": "light"
  }
}

{
  "data": [
    {"name": "Beijing", "value": 100},
    {"name": "Shanghai", "value": 80},
    {"name": "Guangzhou", "value": 60}
  ],
  "geoJson": "china"  // or custom GeoJSON URL
}

© stophobia, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 28 other files (scripts, references) in skills/public/chart-visualization of stophobia/deerflow2.0-enhanced.

• SKILL.md
• references/generate_area_chart.md
• references/generate_bar_chart.md
• references/generate_boxplot_chart.md
• references/generate_column_chart.md
• references/generate_district_map.md
• references/generate_dual_axes_chart.md
• references/generate_fishbone_diagram.md
• references/generate_flow_diagram.md
• references/generate_funnel_chart.md
• references/generate_histogram_chart.md
• references/generate_line_chart.md
• references/generate_liquid_chart.md
• references/generate_mind_map.md
• references/generate_network_graph.md
• references/generate_organization_chart.md
• references/generate_path_map.md
• references/generate_pie_chart.md
• references/generate_pin_map.md
• references/generate_radar_chart.md
• … and 9 more

Open the folder on GitHubat commit 814bde3