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 plmbr/nui --skill visualizegit clone --depth 1 https://github.com/plmbr/nuiWrote 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/plmbr/nui/visualize)<a href="https://agentmods.dev/skills/plmbr/nui/visualize"><img src="https://agentmods.dev/badge/skills/plmbr/nui/visualize/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/plmbr/nui/visualize"><img src="https://agentmods.dev/badge/skills/plmbr/nui/visualize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00022 | $0.00384 |
| Opus 5.5 | $0.00009 | $0.00154 |
| Sonnet 5.5 | $0.00004 | $0.00077 |
| Haiku 4.5 | $0.00002 | $0.00038 |
Grade A, and why
visualize 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.
What it actually says
Visualize (nui)
When the user asks for a chart, graph, table, or dashboard, render it inline in the nui chat panel using show_visualization on the nui-viz MCP server.
Required workflow (same turn)
- Build self-contained HTML (Chart.js v3/v4 API from CDNs is fine — nui rewrites CDN chart.js tags to its bundled v4 copy at
/vendor/chart.min.js). - Call
show_visualizationwith the HTML in thehtmlfield. - Optionally set
title.
Do this before sending any closing assistant text. Never stop after "building the chart" without calling the tool.
Do not paste markdown images, data:image/... URIs, or base64 in your text after calling show_visualization — nui already renders the chart inline.
Do not
- Do not invoke the Skill tool or the dataviz bundled skill.
- Do not use Write / Edit to save
.htmlfiles. - Do not tell the user to open a file in a browser.
Example
{
"title": "California demographics",
"html": "<!DOCTYPE html><html><head><script src=\"https://cdn.jsdelivr.net/npm/chart.js\"></script></head><body><canvas id=\"c\"></canvas><script>new Chart(document.getElementById('c'),{type:'pie',data:{labels:['A','B'],datasets:[{data:[60,40]}]}});</script></body></html>"
}
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 · 34 lines · 22 tokens per session scan A 07a4bab190b2
visualize is a skill published in the GitHub repository plmbr/nui (8 stars, last pushed 18d ago), licensed MIT. It adds 22 tokens to every session and 384 once invoked, about $0.0001 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 2026-08-31.
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