spatial-canvas-layout

spatial-canvas-layout is a skill for Claude Code, Codex from ronmkr/PromptBook. It costs 62 tokens per session (2,357 once invoked), scanned A, a copy of canvas-design, Apache-2.0.

A method for creating original visual artwork as PNG or PDF files. It first defines a visual philosophy—such as the use of space, colour, form, and imagery—then expresses it as a finished design.

In plain words
What is it for?
It is for making posters, artwork, and other static visual pieces with deliberate composition and minimal supporting text.
Why use it?
It helps turn a broad creative direction into a coherent visual composition instead of an ordinary layout or template.

Skill for Claude CodeCodex

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

Good fit It is for making posters, artwork, and other static visual pieces with deliberate composition and minimal supporting text.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ronmkr/promptbook/spatial-canvas-layout
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 ronmkr/PromptBook --skill spatial-canvas-layout
Clone the repo
git clone --depth 1 https://github.com/ronmkr/PromptBook

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 spatial-canvas-layout

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/ronmkr/promptbook/spatial-canvas-layout"><img src="https://agentmods.dev/badge/skills/ronmkr/promptbook/spatial-canvas-layout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,357 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 97% copy Near-identical to another mod 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 $0.00062 $0.02357
Opus 5.5 $0.00025 $0.00943
Sonnet 5.5 $0.00012 $0.00471
Haiku 4.5 $0.00006 $0.00236

Measured 2mo ago against content hash c5d723e32698, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spatial-canvas-layout 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.

Origin

This is a copy

97% identical to canvas-design — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/creative-lab/spatial-canvas-layout/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

These are instructions for creating design philosophies - aesthetic movements that are then EXPRESSED VISUALLY. Output only .md files, .pdf files, and .png files.

Complete this in two steps:

  1. Design Philosophy Creation (.md file)
  2. Express by creating it on a canvas (.pdf file or .png file)

First, undertake this task:

DESIGN PHILOSOPHY CREATION

To begin, create a VISUAL PHILOSOPHY (not layouts or templates) that will be interpreted through:

  • Form, space, color, composition
  • Images, graphics, shapes, patterns
  • Minimal text as visual accent

THE CRITICAL UNDERSTANDING

  • What is received: Some subtle input or instructions by the user that should be taken into account, but used as a foundation; it should not constrain creative freedom.
  • What is created: A design philosophy/aesthetic movement.
  • What happens next: Then, the same version receives the philosophy and EXPRESSES IT VISUALLY - creating artifacts that are 90% visual design, 10% essential text.

Consider this approach:

  • Write a manifesto for an art movement
  • The next phase involves making the artwork

The philosophy must emphasize: Visual expression. Spatial communication. Artistic interpretation. Minimal words.

HOW TO GENERATE A VISUAL PHILOSOPHY

Name the movement (1-2 words): "Brutalist Joy" / "Chromatic Silence" / "Metabolist Dreams"

Articulate the philosophy (4-6 paragraphs - concise but complete):

To capture the VISUAL essence, express how the philosophy manifests through:

  • Space and form
  • Color and material
  • Scale and rhythm
  • Composition and balance
  • Visual hierarchy

CRITICAL GUIDELINES:

  • Avoid redundancy: Each design aspect should be mentioned once. Avoid repeating points about color theory, spatial relationships, or typographic principles unless adding new depth.
  • Emphasize craftsmanship REPEATEDLY: The philosophy MUST stress multiple times that the final work should appear as though it took countless hours to create, was labored over with care, and comes from someone at the absolute top of their field. This framing is essential - repeat phrases like "meticulously crafted," "the product of deep expertise," "painstaking attention," "master-level execution."
  • Leave creative space: Remain specific about the aesthetic direction, but concise enough that the next The Agent has room to make interpretive choices also at a extremely high level of craftmanship.

Read the full file on GitHub · 130 lines

Files

What ships with it

60 files 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.

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 · 130 lines · 62 tokens per session scan A c5d723e32698

Subscribe to this mod's changes

spatial-canvas-layout is a skill published in the GitHub repository ronmkr/PromptBook (2 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 62 tokens to every session and 2,357 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to canvas-design, differing in 7 lines, and is treated as a copy.

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