dataviz

dataviz is a skill for Claude Code, Codex from xobotyi/cc-foundry. It costs 148 tokens per session (2,812 once invoked), scanned B, original, MIT.

A set of rules for designing monitoring and observability dashboards—screens that show whether software is working and where problems are happening.

In plain words
What is it for?
Choosing suitable chart types, arranging dashboard information, using time-series and color consistently, and presenting measures such as response rates, errors, usage, and service targets.
Why use it?
It helps dashboards communicate accurately when people need to make quick decisions during an incident. It reduces misleading charts, confusing layouts, and unsafe color choices.

Skill for Claude CodeCodex

Part of the grafana plugin — 7 skills shipped together

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.

agentmods
npx agentmods add skills/xobotyi/cc-foundry/dataviz
Any agent
npx skills add xobotyi/cc-foundry --skill dataviz
Clone the repo
git clone --depth 1 https://github.com/xobotyi/cc-foundry

Made for: Claude Code, Codex.

Or install grafana, the plugin that ships this one along with the rest of its 7 skills.

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 dataviz

README.md
[![agentmods](https://agentmods.dev/badge/skills/xobotyi/cc-foundry/dataviz.svg)](https://agentmods.dev/skills/xobotyi/cc-foundry/dataviz)
Your own site
<a href="https://agentmods.dev/skills/xobotyi/cc-foundry/dataviz"><img src="https://agentmods.dev/badge/skills/xobotyi/cc-foundry/dataviz.svg" alt="Measured on agentmods" height="20"></a>
Per session 148 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,812 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
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 $0.00148 $0.02812
Opus 5 $0.00074 $0.01406
Sonnet 5 $0.00030 $0.00562
Haiku 4.5 $0.00015 $0.00281

Measured 5d ago against content hash 50c09d71aeb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

dataviz scanned grade B with 1 finding 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 5d 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

- Point and fix; don't lecture.
plugins/grafana/skills/dataviz/SKILL.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Visualization for Dashboards

A dashboard is a tool for fast, accurate judgement under operational stress. Every visual choice supports that judgement or undermines it.

Scope

  • In scope: chart selection, encoding accuracy, color, layout and hierarchy, time-series conventions, observability frameworks (RED, USE, Four Golden Signals, SLO/SLI), anti-patterns, review criteria.
  • Out of scope:
    • Grafana JSON, panel options, transformations, variables, library panelsdashboards sibling owns mechanics.
    • Alert rule definitionsalerting sibling. This skill covers SLO/SLI dashboard structure, not rule firing.
    • Query syntaxpromql / metricsql / logsql siblings.

References

  • Perception and encoding — [${CLAUDE_SKILL_DIR}/references/perception.md] Cleveland & McGill hierarchy, pre-attentive attributes, Tufte data-ink and chart junk, Stephen Few counterpoint.
  • Color — [${CLAUDE_SKILL_DIR}/references/color.md] Semantic conventions, sequential/diverging/categorical palettes, Viridis, colorblind safety, WCAG contrast, dark/light themes, Grafana scheme mapping.
  • Layout — [${CLAUDE_SKILL_DIR}/references/layout.md] F/Z patterns, tiering, grid discipline, progressive disclosure, RED/USE/Four Golden Signals, SLO/SLI dashboard structure.
  • Time-series specifics — [${CLAUDE_SKILL_DIR}/references/time-series.md] Aspect ratio, baseline, interpolation, aggregation, dual y-axes, stacking.

Encoding hierarchy

Cleveland & McGill (1984), most → least accurate:

  1. Position on a common scale
  2. Position on non-aligned scales (small multiples)
  3. Length (bar charts)
  4. Angle / slope (pie slices)
  5. Area (bubble plots, treemaps)
  6. Volume (3D)
  7. Color saturation / luminance
  8. Color hue (categorical only)

Pick encodings as high as the data shape allows. Color hue distinguishes categories; never magnitude.

Chart-type selection

Flows from data shape and the question being answered. dashboards skill has the panel-type catalog; this skill has the rationale.

Read the full file on GitHub · 228 lines

Files

What ships with it

5 files 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. 5d ago First seen · 228 lines · 148 tokens per session scan B 50c09d71aeb1

Subscribe to this mod's changes

dataviz is a skill published in the GitHub repository xobotyi/cc-foundry (20 stars, last pushed 2d ago), licensed MIT. It adds 148 tokens to every session and 2,812 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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