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Data Visualizer · stijnman | DecimalAI

databy stijnman

Data Visualizer

stijnman/data-visualizer

Source stijnman/grok-custom-skills ↗License MIT

Creates charts and visual summaries from tabular or numeric data.

SkillScore73Maintained

Automatic

Data Analyst pack

Last verified 8/15/2026

What it changes

Passed 16 of 22 test cases with the skill, and 5 of 22 without it.

Without skill23%

With skill73%

Checks it passed that the model alone missed

Provides a one-sentence insight.
Includes a one-sentence insight.
Includes a single-sentence insight.

and 11 more in the full report

11 fixed5 passed either way6 still failing0 broke

Pass-rate lift: +50 pp
Tokens: -26%
Agent turns: 0%
Response time: -36%

Model gemini-3.6-flashMeasured 8/15/2026v216 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/stijnman-data-visualizer/SKILL.md https://app.decimal.ai/s/stijnman-data-visualizer/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add stijnman-data-visualizer, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/stijnman-data-visualizer/ and pins it in .decimal/skills.lock

decimalai skills add stijnman-data-visualizer

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/stijnman-data-visualizer/SKILL.md https://app.decimal.ai/s/stijnman-data-visualizer/SKILL.md

Raw file: /s/stijnman-data-visualizer/SKILL.md ↗ · machine-readable summary at /s/stijnman-data-visualizer.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 11

Prompt

Can you graph this regional sales dataset from my CSV file? I'd like a clear visual presentation of the quarterly revenue across our four main territories.

What was checked, without and with the skill
Checked	Without skill	With skill
Generates visual chart code rather than asking the user to upload data first.	Missed	Passed
Includes axis labels in the generated visualization code.	Missed	Passed
Includes a one-sentence insight summarizing the sales trend.	Missed	Passed

case-01 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md34 linessingle file

Data Visualizer

When to Use

User says visualize data or task matches this capability
User says chart this or task matches this capability
User says plot results or task matches this capability
User says graph this or task matches this capability

Workflow

Parse data source (CSV, JSON, spreadsheet).
Choose chart type: bar, line, pie, scatter (default bar for categories).
Generate visualization code or image.
Include title, labels, and one-sentence insight.

Integrations

xlsx
insight-synthesizer

Error Handling

Failure	Response
Malformed data	Show first 5 rows; ask user to fix format.

Gotchas

Prefer code-generated charts over hand-drawn ASCII for accuracy.

Example

Input: User request matching triggers above. Output: Structured result per workflow with integrations invoked as needed.

Track record

Benchmark

16 / 22

test cases passed, vs 5 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 8/15/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

stijnman / grok-custom-skills

.grok/skills/data-visualizer/SKILL.md

View on GitHub ↗

License MITImported 8/15/2026Version v2

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Data Visualizer

When to Use

Workflow

Integrations

Error Handling

Gotchas

Example

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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