data-visualization

Guidance for creating charts and other data visualizations with Python libraries such as Matplotlib, Seaborn, and Plotly. It also covers chart selection, figure quality, accessibility, and colour choices.

In plain words
What is it for?
Use it to choose chart types, build charts from datasets, create publication-quality figures, and apply accessibility or colour-design principles.
Why use it?
It helps turn data into charts that are suitable for understanding or publication, while avoiding poor chart choices and hard-to-read designs.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/grailautomation/claude-plugins/data-visualization
Any agent
npx skills add grailautomation/claude-plugins --skill data-visualization
Clone the repo
git clone --depth 1 https://github.com/grailautomation/claude-plugins

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,822 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found 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.

ModelPer sessionOnce invoked
Fable 5 $0.00051 $0.02822
Opus 5 $0.00026 $0.01411
Sonnet 5 $0.00010 $0.00564
Haiku 4.5 $0.00005 $0.00282

Measured yesterday against content hash 728d3b95b9eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

data-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 yesterday.

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.

data/skills/data-visualization/SKILL.md · 305 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. yesterday First seen · 305 lines · 51 tokens per session scan A 728d3b95b9eb

Subscribe to this mod's changes

data-visualization is a skill published in the GitHub repository grailautomation/claude-plugins (2 stars, last pushed 1mo ago), with no licence file. It adds 51 tokens to every session and 2,822 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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