Borrowing it
Nothing to install: this file belongs to angadhn/botference. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/angadhn/botference/main/.agents/skills/tufte-viz/SKILL.mdgit clone --depth 1 https://github.com/angadhn/botferenceWrote 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.
[](https://agentmods.dev/skills/angadhn/botference/tufte-viz)<a href="https://agentmods.dev/skills/angadhn/botference/tufte-viz"><img src="https://agentmods.dev/badge/skills/angadhn/botference/tufte-viz/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/angadhn/botference/tufte-viz"><img src="https://agentmods.dev/badge/skills/angadhn/botference/tufte-viz.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00129 | $0.00991 |
| Opus 5.5 | $0.00052 | $0.00396 |
| Sonnet 5.5 | $0.00026 | $0.00198 |
| Haiku 4.5 | $0.00013 | $0.00099 |
Grade A, and why
tufte-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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tufte Visualization Ideation
Apply Edward Tufte's principles to design clear, honest, high-density data visualizations.
Workflow
For new visualizations:
-
Clarify the data story
- What comparisons matter?
- What's the key insight to communicate?
- Who's the audience?
-
Select approach using Tufte principles:
- High comparison need → Small multiples
- Dense data → Consider data tables, sparklines
- Time-series → Line charts with minimal grid
- Part-to-whole → Avoid pie charts; prefer bar/table
-
Design with data-ink in mind
- Start minimal, add only what's necessary
- Every element must earn its ink
- Default to grayscale; use color purposefully
-
Apply the eraser test before shipping
- For every element (label, tick, gridline, border, annotation): can it be erased without losing information that's not already conveyed elsewhere?
- Watch for duplicate encodings: numeric labels next to a value already marked by a tick; legends duplicating direct labels; per-panel scale annotations duplicating a shared-scale caption.
- If two elements compete for the same job, keep the visual one and drop the textual one (or vice versa) — not both.
-
Apply the collision test before shipping
- For every text element in the plot (axis labels, point annotations, epoch labels, baseline labels, explanatory notes): mentally draw its bounding box. Does anything else — another text element, a data line, dense markers — live in or cross that box?
- The eraser test catches redundant elements; the collision test catches crowded ones. Both must pass.
- Standard fixes: move explanatory prose out of the plot into the figcaption; relocate band/epoch labels to a dedicated strip above the plot; push baseline/reference labels to the outside margin; give each in-plot annotation a leader line so the marker and the text occupy clearly separated space.
- Watch especially: inverted axes (top of plot is now where extreme values cluster, where annotations also want to go); shared-scale small multiples (labels stacked near zero in every panel); dense scatter (text vanishes into the dot cloud unless explicitly cleared).
What ships with it
2 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.
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.
- 1mo ago First seen · 87 lines · 129 tokens per session scan A e54d72653308
tufte-viz is a skill published in the GitHub repository angadhn/botference (20 stars, last pushed today), licensed MIT. It adds 129 tokens to every session and 991 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-30.
Other skills, from other repositories
anatomy
Explain an idea as an interactive isometric machine figure.
ip-as-logo
Design minimal cute IP mascot marks readable at 32px.
archify
Validated interactive HTML diagrams, upstream-maintained.
html-artifacts
Author the HTML for a plan artifact, dashboard iframe, or Slack attachment — structure, design plan, available runtime, theming, and craft. Read this before writing HTML for publishartifact, outputiframe, or slackattachhtml.
show-me
Help the user understand the current topic visually with concise diagrams, code-shape sketches, and focused HTML artifacts.
infographic-creator
An information-graphic creation guide that turns written information into a visual layout using AntV Infographic, a description language for rendering infographics.