data-viz

data-viz is a skill for Claude Code from rajitsaha/100xprism. It costs 86 tokens per session (2,449 once invoked), scanned A, original, MIT.

A guide for choosing and designing charts and dashboard layouts using common chart libraries. It starts with the question the chart must answer and considers the data, audience, update rate, and display surface.

In plain words
What is it for?
Use it to design dashboards, analytics pages, chart-driven interfaces, and one-off plots, including loading, empty, and error states.
Why use it?
It helps avoid choosing a chart type or layout that makes the information difficult to compare or understand.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to design dashboards, analytics pages, chart-driven interfaces, and one-off plots, including loading, empty, and error states.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rajitsaha/100xprism/data-viz
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.

Any agent
npx skills add rajitsaha/100xprism --skill data-viz
Clone the repo
git clone --depth 1 https://github.com/rajitsaha/100xprism

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for data-viz

README.md
[![agentmods](https://agentmods.dev/badge/skills/rajitsaha/100xprism/data-viz.svg)](https://agentmods.dev/skills/rajitsaha/100xprism/data-viz)
Your own site
<a href="https://agentmods.dev/skills/rajitsaha/100xprism/data-viz"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/data-viz.svg" alt="Measured on agentmods" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,449 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 5.1 $0.00086 $0.02449
Opus 5 $0.00043 $0.01224
Sonnet 5 $0.00017 $0.00490
Haiku 4.5 $0.00009 $0.00245

Measured 8d ago against content hash 7c1bdd9e207e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

data-viz 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 8d ago.

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.

.agents/skills/data-viz/SKILL.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Act as a Senior Data Visualization Designer. Start with the question the chart must answer, then pick the encoding, then the library. Never the reverse.

Required Input

Per chart: Question (what decision does the viewer make?), Data shape (categorical/temporal/continuous; n rows; cardinality per dim), Audience (analyst, executive, end-user), Update cadence (static, on-load, streaming), Density target (single hero chart / dashboard tile / sparkline).

Per dashboard, also: Primary user job (monitor/explore/explain/report), Refresh model (real-time, hourly, daily, on-demand), Surface (large screen, laptop, mobile, embedded, PDF export).

Chart-Type Decision Tree

Start from the question type, not the data type.

"How does X change over time?"

  • 1 series, smooth trend → line
  • 1 series, discrete buckets → column (vertical bar)
  • 2–5 series, comparing trajectories → multi-line (not stacked)
  • Many series, contribution → stacked area (only if total matters)
  • Many series, share of total → 100% stacked area
  • High-frequency / signal noise → line + range band or horizon chart

"How does X compare across categories?"

  • Few categories (≤ 7), one metric → bar (horizontal if labels are long)
  • Many categories (8–50) → horizontal bar, sorted, top-N + "Other"
  • Two metrics per category → grouped bar or dot plot with two dots
  • Distribution across categories → box plot, strip plot, or violin
  • Ranking change over time → bump chart or slope graph (2 points only)

"How is X distributed?"

  • Continuous, one variable → histogram (~10–30 bins)
  • Continuous, two variables → scatter, 2D density / heatmap if n > 1k
  • Categorical proportions → bar, not pie (pie only for ≤ 3 slices with clear majority)
  • Cumulative → CDF / step line

"How does X relate to Y?"

  • Two continuous → scatter (+ trend line only if relationship is real)
  • Two continuous + third dim → scatter + size or + color
  • Categorical × categorical → heatmap
  • Many pairwise → scatter matrix (small multiples)

Read the full file on GitHub · 183 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 183 lines · 86 tokens per session scan A 7c1bdd9e207e

Subscribe to this mod's changes

data-viz is a skill published in the GitHub repository rajitsaha/100xprism (10 stars, last pushed 8d ago), licensed MIT. It adds 86 tokens to every session and 2,449 once invoked, about $0.0004 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.