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 Dragoon0x/canon --skill canon-data-vizgit clone --depth 1 https://github.com/Dragoon0x/canonWrote 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/dragoon0x/canon/canon-data-viz)<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-data-viz"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-data-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/dragoon0x/canon/canon-data-viz"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-data-viz.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 | $0.00080 | $0.00905 |
| Opus 5 | $0.00040 | $0.00452 |
| Sonnet 5 | $0.00016 | $0.00181 |
| Haiku 4.5 | $0.00008 | $0.00090 |
Grade A, and why
canon-data-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 10d 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 — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CANON · Data Visualization (Beyond Charts)
canon-charts covers standard chart types. This skill covers the smaller, denser data displays that fill dashboards and metric screens.
Big number + context
The most effective data display is a large number with a small piece of context.
$2.4M
Revenue · ↑12% vs Q3
| Element | Spec |
|---|---|
| Number | 28–48px, font-weight 700, tabular-nums |
| Label | 12–14px, muted color, below or above |
| Trend indicator | ↑↓ arrow or colored percentage, 13–14px |
| Sparkline (optional) | 80–160px wide, 24–40px tall, below the number |
Sparklines
Tiny line charts without axes. Show shape, not precision.
- Width: 80–160px. Height: 24–40px.
- No labels, no axes, no grid.
- Color: single color for the line. Optional fill gradient below (10–20% opacity).
- Hover: show exact value at the point.
- End dot: highlight current/latest value.
Progress bars
| Type | Use |
|---|---|
| Determinate (%) | Known total (file upload, form completion) |
| Indeterminate | Unknown duration (processing, searching) |
| Segmented | Multi-step with known stages |
| Circular | Compact display (loading, completion %) |
Spec:
- Height: 4–8px for linear, 40–80px diameter for circular.
- Border radius: fully rounded.
- Color: brand for progress, muted for track.
- Percentage label: optional, but show it for determinate bars > 50px wide.
role="progressbar"witharia-valuenow,aria-valuemin,aria-valuemax.
Metric comparison
When showing before/after or period-over-period:
Revenue Costs
$2.4M ↑12% $1.1M ↓3%
vs $2.1M Q3 vs $1.13M Q3
- Align numbers right for comparison.
- Green for positive trends, red for negative (with ↑↓ arrows for colorblind safety).
- Comparison row in smaller, muted text.
- Use
tabular-numseverywhere.
Dashboard composition
- Most important metric: top-left (F-pattern entry).
- Max 6–8 widgets per screen before it needs drill-down.
- Consistent card heights per row.
- Global timeframe selector (don't make each widget have its own).
- Refresh indicator for live dashboards.
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.
- 10d ago First seen · 102 lines · 80 tokens per session scan A 519bf4e625ba
canon-data-viz is a skill published in the GitHub repository Dragoon0x/canon (5 stars, last pushed 4mo ago), licensed MIT. It adds 80 tokens to every session and 905 once invoked, about $0.0004 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 2026-08-31.
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