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 antvis/chart-visualization-skills --skill antv-gpt-visgit clone --depth 1 https://github.com/antvis/chart-visualization-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/antvis/chart-visualization-skills/antv-gpt-vis)<a href="https://agentmods.dev/skills/antvis/chart-visualization-skills/antv-gpt-vis"><img src="https://agentmods.dev/badge/skills/antvis/chart-visualization-skills/antv-gpt-vis/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/antvis/chart-visualization-skills/antv-gpt-vis"><img src="https://agentmods.dev/badge/skills/antvis/chart-visualization-skills/antv-gpt-vis.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 | $0.00057 | $0.03500 |
| Opus 5.5 | $0.00023 | $0.01400 |
| Sonnet 5.5 | $0.00011 | $0.00700 |
| Haiku 4.5 | $0.00006 | $0.00350 |
Grade A, and why
antv-gpt-vis 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 23d 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 — 499 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GPT-Vis Chart Visualization Skill
GPT-Vis is an AI-native visualization library designed for the LLM era. It uses a framework-agnostic architecture, supports 26 chart types, and enables LLMs to easily generate high-quality visualizations through a simple, natural syntax.
Steps
- Intent recognition: Select the chart type based on user intent and data characteristics
- Determine output mode: Choose Syntax mode or Code mode based on context
- Generate output: Produce content in the selected mode
Supported Chart Types
| type value | Use case |
|---|---|
| line | Time series trends |
| area | Time series trends + totals |
| column | Categorical data comparison |
| bar | Categorical comparison (long labels) |
| pie | Part-to-whole proportions |
| scatter | Relationship between two variables |
| dual-axes | Comparison of data at different scales |
| histogram | Frequency distribution of continuous values |
| boxplot | Data distribution and outliers |
| violin | Data distribution density |
| radar | Multi-dimensional comparison |
| funnel | Process conversion rates |
| waterfall | Cumulative increases and decreases |
| liquid | Percentage / progress |
| word-cloud | Word frequency display |
| venn | Set intersection/union relationships |
| treemap | Hierarchical data proportions |
| sankey | Flow and direction of quantities |
| flow-diagram | Process steps |
| mindmap | Hierarchical knowledge organization |
| indented-tree | Tree node hierarchy / directories |
| network-graph | Relationships between entities |
| organization-chart | Organizational hierarchy |
| fishbone-diagram | Root cause analysis |
| table | Tabular data display |
| summary | Content summary |
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.
- 23d ago First seen · 499 lines · 57 tokens per session scan A 3afd9fe77f09
antv-gpt-vis is a skill published in the GitHub repository antvis/chart-visualization-skills (509 stars, last pushed 24d ago), licensed MIT. It adds 57 tokens to every session and 3,500 once invoked, about $0.0002 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 2026-09-23.
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