Algorithmic Art with p5.js
anthropics/skills
Creates original generative art in two steps: a written algorithmic philosophy, then a p5.js sketch with seeded randomness and an interactive viewer for exploring parameters.
Algorithmic and generative art with Canvas 2D - particles, flow fields, noise, fractals, L-systems.
Install Canvas Generative
$ npx skills add AThevon/genjutsu --skill canvas-generative -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AThevon/genjutsu canvas-generative --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/_jutsu/canvas-generative .claude/skills/canvas-generative && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .claude/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generativeType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add AThevon/genjutsu --skill canvas-generative -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AThevon/genjutsu canvas-generative --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/_jutsu/canvas-generative .agents/skills/canvas-generative && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .agents/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add AThevon/genjutsu --skill canvas-generative -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AThevon/genjutsu canvas-generative --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/_jutsu/canvas-generative .cursor/skills/canvas-generative && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .cursor/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/AThevon/genjutsu.git --path skills/_jutsu/canvas-generative--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add AThevon/genjutsu --skill canvas-generative -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AThevon/genjutsu canvas-generative --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/_jutsu/canvas-generative .gemini/skills/canvas-generative && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .gemini/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install AThevon/genjutsu canvas-generativeInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add AThevon/genjutsu --skill canvas-generative -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/_jutsu/canvas-generative .github/skills/canvas-generative && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .github/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add AThevon/genjutsu --skill canvas-generative -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install AThevon/genjutsu canvas-generative --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/_jutsu/canvas-generative .opencode/skills/canvas-generative && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "canvas-generative" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/_jutsu/canvas-generative into .opencode/skills/canvas-generative/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canvas-generative", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
canvas-generative- GitHub stars
- 424
- Used in
- 1 other repo
- Token cost
- ~2.1k tokens
- SKILL.md length
- 393 words
- Files
- 2 (incl. references)
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Algorithmic and generative art with Canvas 2D - particles, flow fields, noise, fractals, L-systems.
- Works in 4 steps: Never clearRect every frame for trail… → Never getImageData in the animation loop → Always respect DPR for sharpness → …
- Tasks that involve Generative and creative coding
- SKILL.md covers Canvas 2D Setup, Noise, Particle Systems and Flow Fields, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Canvas Generative is an agent skill from AThevon/genjutsu. Algorithmic and generative art with Canvas 2D - particles, flow fields, noise, fractals, L-systems.
Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/algorithms.md`).
It sits in Media & Creative, covering Generative and creative coding. The repository describes itself as: Creative coding skills for Claude Code, claude.ai and Cowork. Motion, micro-interactions and design systems across Web (GSAP, Motion, Three.js, CSS), Android (Jetpack Compose)…
When your agent uses it
- Tasks that involve Generative and creative coding
Example prompts
- “/canvas-generative”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Never clearRect every frame for trail effects
- Never getImageData in the animation loop
- Always respect DPR for sharpness
- Never allocate in the hot loop
What it can do on your machine
Read from SKILL.md and the folder at commit 1f518a7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Canvas Generative loads about 2.1k tokens when it runs, and up to ~8.8k if it reads all its reference files. Until then it costs about 29 tokens; SKILL.md has 393 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 393 words (~2,134 tokens).
“Every canvas must be sharp on Retina/HiDPI displays. Set the buffer size to the physical pixel size, scale down with CSS.”
- name
- canvas-generative
- metadata.internal
- true
Files
SKILL.md and 1 other file (references) in skills/_jutsu/canvas-generative of AThevon/genjutsu.
- SKILL.md
- references/algorithms.md
Open the folder on GitHubat commit 1f518a7
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in AThevon/genjutsu, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Canvas Generative next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Canvas Generative this skillAThevon/genjutsu | 424 | 1 repos | ~2.1k | Automated safety check: Pass | Custom licence | |
| Algorithmic Art with p5.jsanthropics/skills | 180k | 38 repos | ~4.9k | Automated safety check: Pass | Apache-2.0 | |
| Canvas Designanthropics/skills | 180k | 52 repos | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Photo Abstract EditorialZzzLc0405/photo-abstract-editorial | 5.9k | — | ~815 | Automated safety check: Pass | Proprietary | |
| Mono Coloryanliudesign/mono-color-skill | 3.4k | — | ~8.5k | Automated safety check: Pass | MIT | |
| Gathered Scenes Zine PosterZeejay0/gathered-scenes-zine-skill | 5.3k | — | ~3.8k | Automated safety check: Pass | Custom licence |
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- Official
- Official
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Mono Color
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TaiT-tt/tait-crt-interface-skill
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Related
Categories
Questions about Canvas Generative
What does Canvas Generative do?
Algorithmic and generative art with Canvas 2D - particles, flow fields, noise, fractals, L-systems. Canvas Generative is an agent skill from AThevon/genjutsu. Algorithmic and generative art with Canvas 2D - particles, flow fields, noise, fractals, L-systems.
When should I use Canvas Generative?
Canvas Generative fits situations like: tasks that involve Generative and creative coding.
How do I install Canvas Generative in Claude Code?
Run `npx skills add AThevon/genjutsu --skill canvas-generative -a claude-code`. Or copy the skill folder (skills/_jutsu/canvas-generative in AThevon/genjutsu) into .claude/skills/canvas-generative in your project. Claude Code loads it when a task matches its description.
How do I install Canvas Generative in Codex?
Run `npx skills add AThevon/genjutsu --skill canvas-generative -a codex`. Or copy the skill folder (skills/_jutsu/canvas-generative in AThevon/genjutsu) into .agents/skills/canvas-generative in your project. Codex loads it when a task matches its description.
Can I use Canvas Generative in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add AThevon/genjutsu --skill canvas-generative -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/canvas-generative, .gemini/skills/canvas-generative, .github/skills/canvas-generative and .opencode/skills/canvas-generative in your project.
What does Canvas Generative need to run?
SKILL.md names no scripts, command-line tools or credentials: Canvas Generative is instructions for the agent only.
Does Canvas Generative access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Canvas Generative safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Canvas Generative use?
Canvas Generative has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Canvas Generative use?
About 2.1k tokens (SKILL.md is roughly 8.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.7k tokens, read only when the agent opens those files.
What are the alternatives to Canvas Generative?
Skills that share tags, products or a category with Canvas Generative: Algorithmic Art with p5.js (anthropics/skills, 180k stars), Canvas Design (anthropics/skills, 180k stars), Photo Abstract Editorial (ZzzLc0405/photo-abstract-editorial, 5.9k stars) and Mono Color (yanliudesign/mono-color-skill, 3.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Canvas Generative?
AThevon (a GitHub user) maintains it in AThevon/genjutsu, which has 424 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 5, 2026.
Source: AThevon/genjutsu on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.