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.
npx skills add ur-grue/autopunk-media-skills --skill chart-description-writergit clone --depth 1 https://github.com/ur-grue/autopunk-media-skillsWrote 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/ur-grue/autopunk-media-skills/chart-description-writer)<a href="https://agentmods.dev/skills/ur-grue/autopunk-media-skills/chart-description-writer"><img src="https://agentmods.dev/badge/skills/ur-grue/autopunk-media-skills/chart-description-writer/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/ur-grue/autopunk-media-skills/chart-description-writer"><img src="https://agentmods.dev/badge/skills/ur-grue/autopunk-media-skills/chart-description-writer.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 | $0.00052 | $0.01137 |
| Opus 5 | $0.00026 | $0.00568 |
| Sonnet 5 | $0.00010 | $0.00227 |
| Haiku 4.5 | $0.00005 | $0.00114 |
Grade A, and why
chart-description-writer 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 12d 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 — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chart Description Writer
What This Skill Does
Writes a precise, accessible text description of a data visualization — covering the chart type, what it shows, the key finding, and the data range — suitable for publication as a caption, alt-text, or standfirst alongside the chart.
When To Use This Skill
- You are publishing a chart and need a caption or alt-text that accurately describes it for readers who cannot see or fully interpret the visual
- You want a short, punchy caption that highlights the most important finding rather than just describing the axes
- You need to write an accessible description to meet publication or platform accessibility standards
- You are writing up a chart for a print layout where the graphic may not reproduce clearly at small sizes
What You Need To Provide
Required: A description of the chart — chart type (bar, line, scatter, etc.), what the x and y axes show, the time period if applicable, the data source, and the key finding or pattern you want the reader to take away. Optional: The exact headline figure or data point you want emphasised; the publication register (news article, magazine feature, annual report); whether an alt-text version (screen reader) is also needed.
How the Assistant Approaches This
- Identifies the chart type and the primary story the data tells — not a neutral description of all data points, but the finding a journalist would lead with.
- Writes a headline-first description: the key finding in plain language, followed by the supporting context (time period, comparison, magnitude).
- If alt-text is requested, produces a separate, more complete description including chart type, axis labels, data range, and a full plain-language summary — formatted to accessibility standards.
Output Format
Primary output: a caption of two to four sentences (60–120 words) that leads with the finding and includes the data source. If alt-text is requested, a second block: a single descriptive paragraph of 60–100 words formatted as alt-text, beginning with the chart type. Tone: clear, direct, publication-quality. No jargon.
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.
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.
- 12d ago First seen · 74 lines · 52 tokens per session scan A 0fc50d48863f
chart-description-writer is a skill published in the GitHub repository ur-grue/autopunk-media-skills (32 stars, last pushed 11d ago), licensed MIT. It adds 52 tokens to every session and 1,137 once invoked, about $0.0003 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 2026-08-30.
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