What is chart-visualization?

A guide for choosing and creating charts from data. It matches common data patterns—such as trends, comparisons, proportions, relationships, locations, and hierarchies—to suitable chart types and generates a chart image.

Use it to visualise time series, category comparisons, distributions, part-to-whole relationships, correlations, flows, maps, organisational structures, and other data patterns.

It helps avoid using a chart that makes the data difficult to understand. It turns a description or dataset into a visual form suited to the question being asked.

chart-visualization — Skill for Claude Code and Codex by OpsinTech

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add OpsinTech/opsintech-platform --skill chart-visualization

Clone the repo

git clone --depth 1 https://github.com/OpsinTech/opsintech-platform

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/opsintech/opsintech-platform/chart-visualization/github.svg)](https://agentmods.dev/skills/opsintech/opsintech-platform/chart-visualization)

Your own site

<a href="https://agentmods.dev/skills/opsintech/opsintech-platform/chart-visualization"><img src="https://agentmods.dev/badge/skills/opsintech/opsintech-platform/chart-visualization/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/opsintech/opsintech-platform/chart-visualization"><img src="https://agentmods.dev/badge/skills/opsintech/opsintech-platform/chart-visualization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 774 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 95% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00050	$0.00774
Opus 5.5	$0.00020	$0.00310
Sonnet 5.5	$0.00010	$0.00155
Haiku 4.5	$0.00005	$0.00077

Measured 1mo ago against content hash 76cd9fe631b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chart-visualization scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/generate.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

95% identical to chart-visualization — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/public/chart-visualization/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chart Visualization Skill

This skill provides a comprehensive workflow for transforming data into visual charts. It handles chart selection, parameter extraction, and image generation.

Workflow

To visualize data, follow these steps:

1. Intelligent Chart Selection

Analyze the user's data features to determine the most appropriate chart type. Use the following guidelines (and consult references/ for detailed specs):

Time Series: Use generate_line_chart (trends) or generate_area_chart (accumulated trends). Use generate_dual_axes_chart for two different scales.
Comparisons: Use generate_bar_chart (categorical) or generate_column_chart. Use generate_histogram_chart for frequency distributions.
Part-to-Whole: Use generate_pie_chart or generate_treemap_chart (hierarchical).
Relationships & Flow: Use generate_scatter_chart (correlation), generate_sankey_chart (flow), or generate_venn_chart (overlap).
Maps: Use generate_district_map (regions), generate_pin_map (points), or generate_path_map (routes).
Hierarchies & Trees: Use generate_organization_chart or generate_mind_map.
Specialized:
- generate_radar_chart: Multi-dimensional comparison.
- generate_funnel_chart: Process stages.
- generate_liquid_chart: Percentage/Progress.
- generate_word_cloud_chart: Text frequency.
- generate_boxplot_chart or generate_violin_chart: Statistical distribution.
- generate_network_graph: Complex node-edge relationships.
- generate_fishbone_diagram: Cause-effect analysis.
- generate_flow_diagram: Process flow.
- generate_spreadsheet: Tabular data or pivot tables for structured data display and cross-tabulation.

2. Parameter Extraction

Once a chart type is selected, read the corresponding file in the references/ directory (e.g., references/generate_line_chart.md) to identify the required and optional fields. Extract the data from the user's input and map it to the expected args format.

Read the full file on GitHub · 73 lines

Files

What ships with it

27 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 73 lines · 50 tokens per session scan A 76cd9fe631b8

Subscribe to this mod's changes

chart-visualization is a skill published in the GitHub repository OpsinTech/opsintech-platform (94 stars, last pushed 3mo ago), licensed MIT. It adds 50 tokens to every session and 774 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to chart-visualization, differing in 2 lines, and is treated as a copy.

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