canon-spatial

canon-spatial is a skill for Claude Code, Codex from Dragoon0x/canon. It costs 82 tokens per session (2,312 once invoked), scanned A, original, MIT.

A guide to spacing and layout in web interfaces. It uses consistent measurement scales, grids, containers, gutters, padding, and density choices to create visual rhythm.

In plain words
What is it for?
Use it when setting margins, padding, gaps, grid layouts, content widths, component spacing, or dashboard density.
Why use it?
It removes arbitrary spacing values that make an interface look uneven or difficult to maintain. Consistent spacing makes related elements easier to understand.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when setting margins, padding, gaps, grid layouts, content widths, component spacing, or dashboard density.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dragoon0x/canon/canon-spatial
Install

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.

Any agent
npx skills add Dragoon0x/canon --skill canon-spatial
Clone the repo
git clone --depth 1 https://github.com/Dragoon0x/canon

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for canon-spatial

README.md
[![agentmods](https://agentmods.dev/badge/skills/dragoon0x/canon/canon-spatial/github.svg)](https://agentmods.dev/skills/dragoon0x/canon/canon-spatial)
Your own site
<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-spatial"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-spatial/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.

agentmods 80×15 button for canon-spatial

Your own site · 80×15
<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-spatial"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-spatial.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,312 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00082 $0.02312
Opus 5.5 $0.00033 $0.00925
Sonnet 5.5 $0.00016 $0.00462
Haiku 4.5 $0.00008 $0.00231

Measured 2mo ago against content hash baedd4036631, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

canon-spatial 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 2mo 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.

source/skills/canon-spatial/SKILL.md · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CANON · Spatial Design

Spacing is the third highest-leverage decision after type and color. Inconsistent spacing is the single biggest tell that an interface was generated rather than designed.

Quantified Rules

Grid Base

Pick one base unit and stick to it across the entire system:

Base Use case Source
4px Dense apps, dashboards, data tables Apple HIG (4pt)
8px Default for most products Material 3, Bootstrap

Rule: every spacing value must be a multiple of the base. No 5px, no 7px, no 13px. Snapping to a grid is the difference between designed and arranged.

Spacing Scale (8px base)

0   = 0px
0.5 = 4px      (sub-grid for icon offsets only)
1   = 8px
1.5 = 12px
2   = 16px
3   = 24px
4   = 32px
5   = 40px
6   = 48px
8   = 64px
10  = 80px
12  = 96px
16  = 128px
20  = 160px
24  = 192px

12 to 14 stops is the right total. Fewer feels rigid. More dilutes the system.

Spacing Scale (4px base, dense)

1  = 4px
2  = 8px
3  = 12px
4  = 16px
5  = 20px
6  = 24px
8  = 32px
10 = 40px
12 = 48px
16 = 64px
20 = 80px
24 = 96px

Component Padding

Component Padding (8px scale) Source
Button (medium) 12px V, 20px H Material 3
Button (small) 8px V, 16px H
Button (large) 16px V, 24px H
Input field 12px V, 16px H
Card 24px all sides
Card (compact) 16px all sides
Modal 32px (title), 24px (body), 24px (footer)
Section 64–96px V on desktop, 48px V on mobile
Page container 24px H mobile, 48px H tablet, 64px+ H desktop

Touch Targets

Platform Minimum Source
iOS 44 × 44 pt Apple HIG
Android / Material 48 × 48 dp Material 3
Web 44 × 44 px WCAG 2.5.5 (AAA), 2.5.8 (AA, 24×24 minimum)

Use 44px as the universal floor. Visual size can be smaller if the tappable area is padded out to 44px via padding or absolute positioning.

Gap Between Elements

Visual hierarchy is created by spacing. Closely-related elements get tighter gaps; distinct sections get wider gaps.

Read the full file on GitHub · 239 lines

Changes

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.

  1. 2mo ago First seen · 239 lines · 82 tokens per session scan A baedd4036631

Subscribe to this mod's changes

canon-spatial is a skill published in the GitHub repository Dragoon0x/canon (6 stars, last pushed 6mo ago), licensed MIT. It adds 82 tokens to every session and 2,312 once invoked, about $0.0003 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 2026-09-03.

Related

canon-spatial compared with skills from other repositories

canon-spatial next to 6 skills from other repositories
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