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-densitygit 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-density)<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-density"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-density.svg" alt="Measured on agentmods" 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 | $0.00062 | $0.00783 |
| Opus 5 | $0.00031 | $0.00392 |
| Sonnet 5 | $0.00012 | $0.00157 |
| Haiku 4.5 | $0.00006 | $0.00078 |
Grade A, and why
canon-density 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 7d 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 — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CANON · Density
Density is spacing, not font size. Changing density means scaling gaps, padding, and row heights while keeping type legible.
Three density modes
| Mode | Use | Spacing multiplier |
|---|---|---|
| Compact | Power users, data tables, dashboards, admin tools | 0.75× |
| Default | Most apps | 1× |
| Comfortable | Content-heavy, reading-focused, onboarding | 1.25× |
What scales
| Property | Compact | Default | Comfortable |
|---|---|---|---|
| Row height | 32px | 48px | 56px |
| Card padding | 12px | 16px | 24px |
| Button height | 32px | 40px | 48px |
| Input height | 32px | 40px | 48px |
| Gap between items | 8px | 16px | 24px |
| Section spacing | 24px | 40px | 56px |
What does NOT scale
- Font sizes. 14px body stays 14px across all densities. Compact reads the same text; it just packs it tighter.
- Touch targets on mobile. 44px floor stays, regardless of density mode. Density modes are desktop-only unless you're building for stylus input.
- Icon sizes. Icons stay at their grid-aligned size (16, 20, 24px).
- Border radius. Stays consistent.
- Line height. Governed by type size, not density.
Implementation — CSS custom properties
:root {
--density: 1;
--space-unit: calc(8px * var(--density));
}
[data-density="compact"] { --density: 0.75; }
[data-density="comfortable"] { --density: 1.25; }
.card { padding: calc(var(--space-unit) * 2); }
.row { min-height: calc(var(--space-unit) * 6); }
Or use discrete scales where continuous math creates half-pixel values.
User control
- Toggle in settings or toolbar.
- Persist in localStorage.
- Per-view override OK (table might be compact while the page is default).
- Default is "default." Don't auto-compact on small screens — that's responsive design, not density.
Anti-patterns
| Anti-pattern | Why it fails |
|---|---|
| Shrinking font size for compact | Illegibility; density is spacing, not type |
| Compact mode on mobile with touch targets < 44px | WCAG 2.5.5 violation |
| Comfortable mode that doubles spacing everywhere | Wastes real estate, looks broken |
| No user toggle | Forces one density on everyone |
| Mixing density modes within a single component | Visual incoherence |
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.
- 7d ago First seen · 84 lines · 62 tokens per session scan A 7771b58d910d
canon-density is a skill published in the GitHub repository Dragoon0x/canon (5 stars, last pushed 4mo ago), licensed MIT. It adds 62 tokens to every session and 783 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 2026-08-31.
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