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Data Viz Renderer · zebbern | DecimalAI

design mediaby zebbern

Data Viz Renderer

zebbern/data-viz-renderer

Source zebbern/claude-code-guide ↗License MIT

Generate self-contained HTML/SVG infographics from JSON data, including stat cards, bar charts, flow diagrams, and mixed dashboards. Offers 8 color palettes and built-in icons with no external dependencies. Triggered when users request data visualization, infographics, charts, or dashboards.

SkillScore82Maintained

Automatic

Data Analyst pack

Last verified 8/10/2026

What it changes

Passed 16 of 19 test cases with the skill, and 3 of 19 without it.

Without skill14%

With skill82%

Checks it passed that the model alone missed

Sets the "palette" field to "berry".
Sets the "palette" field to "earth".
Sets the "palette" field to "sunset".

and 17 more in the full report

15 fixed3 passed either way4 still failing0 broke

Pass-rate lift: +68 pp
Tokens: +27%
Agent turns: 0%
Response time: -54%

Model gemini-3.6-flashMeasured 8/10/2026v118 of 22 cases passed with skill · 19 comparable

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/zebbern-data-viz-renderer/SKILL.md https://app.decimal.ai/s/zebbern-data-viz-renderer/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add zebbern-data-viz-renderer, 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/zebbern-data-viz-renderer/ and pins it in .decimal/skills.lock

decimalai skills add zebbern-data-viz-renderer

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

curl -fsSL --create-dirs -o .claude/skills/zebbern-data-viz-renderer/SKILL.md https://app.decimal.ai/s/zebbern-data-viz-renderer/SKILL.md

Raw file: /s/zebbern-data-viz-renderer/SKILL.md ↗ · machine-readable summary at /s/zebbern-data-viz-renderer.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 15 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 15

Prompt

We are creating stat cards for Total Revenue ($2.5M) and Security Audits Passed (12). We want standard vector icons matching money and security. Which icon identifier names should we assign in the JSON?

What was checked, without and with the skill
Checked	Without skill	With skill
Assigns "money" as the icon string for the revenue card.	Missed	Passed
Assigns "shield" as the icon string for the security card.	Missed	Passed

case-14 · gemini-3.6-flash · 8/10/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md178 lines2 filesincludes scripts

Data Viz Renderer

Generate self-contained HTML/SVG infographics from JSON data. Four supported types:

Stats Cards — KPI big numbers + trend arrows + icons
Comparison Chart — Grouped bar chart with multiple series
Flow Diagram — Step-by-step process with numbering, icons, and connecting arrows
Dashboard — Mixed layout: stat cards + bar chart + donut chart + flow

Output is a fully self-contained HTML file (all CSS/SVG inline, no external dependencies), ready to open directly in a browser.

Usage

Basic Usage

python3 scripts/build_infographic.py config.json

Also supports reading from stdin:

cat config.json | python3 scripts/build_infographic.py

The script outputs a JSON status to stdout and writes the generated HTML to the path specified in the output field.

JSON Configuration Format

Common fields:

Field	Type	Required	Description
`title`	string	No	Infographic title
`subtitle`	string	No	Subtitle
`type`	string	Yes	`stats` / `comparison` / `flow` / `dashboard`
`palette`	string	No	Color palette (default: `auto`)
`data`	object/array	Yes	Data content (format depends on type)
`output`	string	No	Output file path (default: `infographic.html`)
`footer`	string	No	Footer text

Track record

Benchmark

16 / 19

test cases passed, vs 3 / 19 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 v4 — 8/3/2026

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

zebbern / claude-code-guide

skills/data-viz-renderer/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1Bundled 1 file · scripts

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

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See it in action

What's inside

Data Viz Renderer

Usage

Basic Usage

JSON Configuration Format

Track record

Benchmark

Adoption

SkillSafety

Source

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