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Agent skill

Data Visualization

by ynulihao in ynulihao/AgentSkillOS

Creates effective data visualizations using various libraries and tools, with focus on clarity and insight communication.

No licenceAuto-check: notesData & Analytics

Install Data Visualization

skills CLI
$ npx skills add ynulihao/AgentSkillOS --skill data-visualization -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ynulihao/AgentSkillOS data-visualization --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ynulihao/AgentSkillOS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/data/skill_seeds/data-visualization .claude/skills/data-visualization && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
data-visualization
GitHub stars
617
Token cost
~2.1k tokens
SKILL.md length
190 words
Files
1
Skills in repo
26
Repo updated
First seen
Licence
None found

At a glance

Creates effective data visualizations using various libraries and tools, with focus on clarity and insight communication.

  • Works in 4 steps: Understand the Data → Select Appropriate Visualization → Design for Clarity → …
  • Keywords: chart
  • SKILL.md covers Overview, Instructions, Best Practices and Examples
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Data Visualization is an agent skill from ynulihao/AgentSkillOS. Creates effective data visualizations using various libraries and tools, with focus on clarity and insight communication. Trigger keywords: chart, graph, plot, visualization, dashboard, matplotlib, d3, plotly, visualization.

Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Data & Analytics, covering Data visualization. It works with Matplotlib and Plotly. The repository describes itself as: Build your agent from 200,000+ skills via skill RETRIEVAL & ORCHESTRATION.

When your agent uses it

  • Keywords: chart
  • Tasks that involve Data visualization

Example prompts

  • “Use the data-visualization skill to create effective data visualizations using various libraries and tools, with focus on clarity and insight…”
  • “/data-visualization”

Requirements

  • Python 3
  • Pre-approved tools (allowed-tools): Read, Grep, Glob, Edit, Write, Bash

Workflow steps

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

  1. Understand the Data
  2. Select Appropriate Visualization
  3. Design for Clarity
  4. Implement and Iterate

What it can do on your machine

Read from SKILL.md and the folder at commit c3cfae1. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Glob
    • Edit
    • Write
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are python and markdown).

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

  • Network

    No URLs in SKILL.md.

    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

Data Visualization loads about 2.1k tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 190 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~61
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k

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

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Grep, Glob, Edit, Write, Bash

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); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 190 words (~2,104 tokens).

“This skill focuses on creating effective data visualizations that communicate insights clearly. It covers various visualization libraries, chart selection, and design principles for impactful data presentation.”

— opening of SKILL.md by ynulihao
name
data-visualization
allowed-tools
Read, Grep, Glob, Edit, Write, Bash

Read the full SKILL.md on GitHub

Files

Just SKILL.md in data/skill_seeds/data-visualization of ynulihao/AgentSkillOS.

Open the folder on GitHubat commit c3cfae1

Compare with similar skills

Data Visualization next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Data Visualization compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Data Visualization this skillynulihao/AgentSkillOS617—~2.1kAutomated safety check: NotesNone
MatplotlibzLanqing/codex-claude-academic-skills4.6k17 repos~2.9kAutomated safety check: PassMIT
Scientific Visualizationmims-harvard/OptimusKG14619 repos~6.3kAutomated safety check: PassMIT
SeabornzLanqing/codex-claude-academic-skills4.6k16 repos~4.9kAutomated safety check: PassBSD-3-Clause
Paper FiguresEvoScientist/EvoSkills4741 repos~4.4kAutomated safety check: PassApache-2.0
CJK Font Setup for Plotsxjtulyc/MedgeClaw6171 repos~1.3kAutomated safety check: PassNone

Similar skills

  • Matplotlib

    zLanqing/codex-claude-academic-skills

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    4.6k GitHub starsUsed in 17 repos~2.9k tokens
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  • Scientific Visualization

    mims-harvard/OptimusKG

    Create publication figures with matplotlib/seaborn/plotly. An agent skill from mims-harvard/OptimusKG.

    146 GitHub starsUsed in 19 repos~6.3k tokens
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  • Seaborn

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    4.6k GitHub starsUsed in 16 repos~4.9k tokens
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  • Paper Figures

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    A skill your agent uses to produce standalone, publication-ready PNG graphics and reproducible matplotlib scripts from tabular data (CSVs or DataFrames).

    474 GitHub starsUsed in 1 repo~4.4k tokens
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    Detects a usable Chinese, Japanese or Korean font and configures matplotlib so chart labels, titles and legends render instead of showing empty boxes.

    617 GitHub starsUsed in 1 repo~1.3k tokens
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  • Tufte Data Viz

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    A skill your agent uses when creating, reviewing, or styling charts, graphs, dashboards, sparklines, or any data visualization.

    222 GitHub stars~3.5k tokensUpdated 7 mo ago
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Works with

Categories

Questions about Data Visualization

What does Data Visualization do?

Creates effective data visualizations using various libraries and tools, with focus on clarity and insight communication. Data Visualization is an agent skill from ynulihao/AgentSkillOS. Creates effective data visualizations using various libraries and tools, with focus on clarity and insight communication.

When should I use Data Visualization?

Data Visualization fits situations like: keywords: chart; tasks that involve Data visualization.

How do I install Data Visualization in Claude Code?

Run `npx skills add ynulihao/AgentSkillOS --skill data-visualization -a claude-code`. Or copy the skill folder (data/skill_seeds/data-visualization in ynulihao/AgentSkillOS) into .claude/skills/data-visualization in your project. Claude Code loads it when a task matches its description.

How do I install Data Visualization in Codex?

Run `npx skills add ynulihao/AgentSkillOS --skill data-visualization -a codex`. Or copy the skill folder (data/skill_seeds/data-visualization in ynulihao/AgentSkillOS) into .agents/skills/data-visualization in your project. Codex loads it when a task matches its description.

Can I use Data Visualization in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ynulihao/AgentSkillOS --skill data-visualization -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/data-visualization, .gemini/skills/data-visualization, .github/skills/data-visualization and .opencode/skills/data-visualization in your project.

What does Data Visualization need to run?

SKILL.md names no scripts, command-line tools or credentials: Data Visualization is instructions for the agent only. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Grep, Glob, Edit, Write, Bash.

Does Data Visualization access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Data Visualization safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Data Visualization use?

No licence was found for Data Visualization or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Data Visualization use?

About 2.1k tokens (SKILL.md is roughly 8.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Data Visualization?

Skills that share tags, products or a category with Data Visualization: Matplotlib (zLanqing/codex-claude-academic-skills, 4.6k stars), Scientific Visualization (mims-harvard/OptimusKG, 146 stars), Seaborn (zLanqing/codex-claude-academic-skills, 4.6k stars) and Paper Figures (EvoScientist/EvoSkills, 474 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Data Visualization?

ynulihao (a GitHub user) maintains it in ynulihao/AgentSkillOS, which has 617 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on March 7, 2026.

Source: ynulihao/AgentSkillOS on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.