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Agent skill

Visualization

by FrankChen021 in FrankChen021/datastoria

Rules for charts and visualization. An agent skill from FrankChen021/datastoria.

Custom licenceAuto-check passedDatabases

Install Visualization

skills CLI
$ npx skills add FrankChen021/datastoria --skill visualization -a claude-code

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

GitHub CLI
$ gh skill install FrankChen021/datastoria 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/FrankChen021/datastoria.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/skills/visualization .claude/skills/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
visualization
GitHub stars
327
Token cost
~1.2k tokens
SKILL.md length
558 words
Files
1
Skills in repo
7
Repo updated
First seen
Licence
Custom licence

At a glance

Rules for charts and visualization. An agent skill from FrankChen021/datastoria.

  • Works in 2 steps: CHECK USER'S EXPLICIT CHART REQUEST… → ANALYZE SQL (Only if no explicit chart…
  • The user asks for charts
  • SKILL.md covers STEP 1: CHECK USER'S EXPLICIT…, STEP 2: ANALYZE SQL (Only if…, Line/Bar Chart example: and Pie Chart example:
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Visualization is an agent skill from FrankChen021/datastoria. Rules for charts and visualization. Use when the user asks for charts, graphs, plots, or visual representations (line, bar, pie, timeseries).

Its SKILL.md is about 1.2k 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 Databases, covering Data visualization and SQL. It works with SQL and ClickHouse. The repository describes itself as: AI-native ClickHouse console for your cluster diagnostics and query generation, optimization and data visualization.

When your agent uses it

  • The user asks for charts
  • Visual representations (line

Example prompts

  • “Use the visualization skill to rule for charts and visualization. An agent skill from FrankChen021/datastoria”
  • “/visualization”

Workflow steps

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

  1. CHECK USER'S EXPLICIT CHART REQUEST (HIGHEST PRIORITY)
  2. ANALYZE SQL (Only if no explicit chart request in Step 1)

What it can do on your machine

Read from SKILL.md and the folder at commit d0859a2. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are chart-spec).

    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

Visualization loads about 1.2k tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 558 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 558 words (~1,232 tokens).

name
visualization
metadata.author
System
metadata.disable-slash-command
true

Read the full SKILL.md on GitHub

Files

Just SKILL.md in resources/skills/visualization of FrankChen021/datastoria.

Open the folder on GitHubat commit d0859a2

Compare with similar skills

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.

Visualization compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Visualization this skillFrankChen021/datastoria327—~1.2kAutomated safety check: PassCustom licence
Pytorch Clickhousepytorch/test-infra113—~2.8kAutomated safety check: PassCustom licence
Redash Analytics Guidewentorai/research-plugins2981 repos~2.5kAutomated safety check: PassMIT
Chdb SQLvemetric/vemetric3941 repos~1.2kAutomated safety check: PassApache-2.0
Modelersidequery/sidemantic129—~4.2kAutomated safety check: PassApache-2.0
Querying Tempotempoxyz/tidx107—~3.1kAutomated safety check: PassMIT

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More from FrankChen021/datastoria

  • Clickhouse System Queries

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    327 GitHub stars~610 tokensUpdated 2 mo ago
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  • SQL Expert

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  • Diagnose Clickhouse Clusters

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    Diagnose ClickHouse cluster health and provide concrete remediation.

    327 GitHub stars~1.6k tokensUpdated 2 mo ago
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  • Optimize Clickhouse SQL

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    Optimize slow queries, analyze SQL performance, and collect evidence for expensive workloads.

    327 GitHub stars~1.2k tokensUpdated 2 mo ago
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  • Source Code Inspection

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    Investigate application or repository source code with searchfile and readfile to explain behavior, trace root causes of runtime or query errors, and answer with precise file citations.

    327 GitHub stars~453 tokensUpdated 2 mo ago
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Works with

Categories

Questions about Visualization

What does Visualization do?

Rules for charts and visualization. An agent skill from FrankChen021/datastoria. Visualization is an agent skill from FrankChen021/datastoria. Rules for charts and visualization.

When should I use Visualization?

Visualization fits situations like: the user asks for charts; visual representations (line.

How do I install Visualization in Claude Code?

Run `npx skills add FrankChen021/datastoria --skill visualization -a claude-code`. Or copy the skill folder (resources/skills/visualization in FrankChen021/datastoria) into .claude/skills/visualization in your project. Claude Code loads it when a task matches its description.

How do I install Visualization in Codex?

Run `npx skills add FrankChen021/datastoria --skill visualization -a codex`. Or copy the skill folder (resources/skills/visualization in FrankChen021/datastoria) into .agents/skills/visualization in your project. Codex loads it when a task matches its description.

Can I use 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 FrankChen021/datastoria --skill 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/visualization, .gemini/skills/visualization, .github/skills/visualization and .opencode/skills/visualization in your project.

What does Visualization need to run?

SKILL.md names no scripts, command-line tools or credentials: Visualization is instructions for the agent only.

Does 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 Visualization safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Visualization use?

Visualization has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Visualization use?

About 1.2k tokens (SKILL.md is roughly 4.9k 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 Visualization?

Skills that share tags, products or a category with Visualization: Pytorch Clickhouse (pytorch/test-infra, 113 stars), Redash Analytics Guide (wentorai/research-plugins, 298 stars), Chdb SQL (vemetric/vemetric, 394 stars) and Modeler (sidequery/sidemantic, 129 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Visualization?

FrankChen021 (a GitHub user) maintains it in FrankChen021/datastoria, which has 327 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on July 21, 2026.

Source: FrankChen021/datastoria on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.