Agent skill

Bunshin

Summon shadow clones: genjutsu's full-scale pipeline for a whole website or web app, from scratch or as a full redesign.

Custom licenceAuto-check: notesAgent Workflows

Install Bunshin

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/bunshin .claude/skills/bunshin && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .claude/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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

$skill-installer install https://github.com/AThevon/genjutsu/tree/main/skills/bunshin

Type 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.

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/bunshin .agents/skills/bunshin && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .agents/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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.

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/bunshin .cursor/skills/bunshin && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .cursor/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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

$ gemini skills install https://github.com/AThevon/genjutsu.git --path skills/bunshin

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/bunshin .gemini/skills/bunshin && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .gemini/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin

Installs 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).

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/bunshin .github/skills/bunshin && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .github/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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.

skills CLI

$ npx skills add AThevon/genjutsu --skill bunshin -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install AThevon/genjutsu bunshin --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AThevon/genjutsu.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/bunshin .opencode/skills/bunshin && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "bunshin" agent skill from https://github.com/AThevon/genjutsu/tree/main/skills/bunshin into .opencode/skills/bunshin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bunshin", 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: bunshin
GitHub stars: 431
Token cost: ~16k tokens
SKILL.md length: 7,878 words
Files: 1
Skills in repo: 20
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Summon shadow clones: genjutsu's full-scale pipeline for a whole website or web app, from scratch or as a full redesign.

Works in 12 steps: READ - the project, the brief, the host → SUMMON - the first gate → HARVEST - the real material → …
Tasks that involve Subagents
SKILL.md covers Voice, bunshin, paint, cast, Iron Rules and Step down, when this is not…, plus 9 more sections
Calls python3, npx and node; reaches genjutsu.athevon.dev

What it does

Bunshin is an agent skill from AThevon/genjutsu. Summon shadow clones: genjutsu's full-scale pipeline for a whole website or web app, from scratch or as a full redesign. Harvests the client's real material, researches in parallel, lets Impeccable lead the direction and genjutsu the motion, builds the pages with parallel agents, then loops fixes, verdicts and a cold-eyes art director until only minor issues remain, the round cap of the chosen tier is reached, or a round fixes nothing. Announces its cost first and asks twice. Web. Needs a host that can spawn…

Its SKILL.md is about 16k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Subagents. 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 Subagents

Example prompts

“/bunshin”

Requirements

Python 3
Node.js
Pre-approved tools (allowed-tools): Bash, Read, Edit, Write, Grep, Glob, WebSearch, WebFetch, Artifact, Agent, Workflow, AskUserQuestion, Skill

Workflow steps

12 steps, taken from the step headings in SKILL.md.

READ - the project, the brief, the host
SUMMON - the first gate
HARVEST - the real material
RESEARCH - four clones, then a synthesis
DIRECTION - the second gate
MATERIAL - by evidence, not by reflex
FOUNDATION - yours, not a clone's
CLONES - the pages, in parallel
PROVE - before anyone reviews
REVIEW - independent lenses
REFINE - the loop
SEAL - document, audit, report

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 these tools, so the agent can use them without asking each time:
- Bash
- Read
- Edit
- Write
- Grep
- Glob
- WebSearch
- WebFetch
- Artifact
- Agent
…and 3 more on the same allowed-tools line.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- python3
- npx
- node
- rsync
- git
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- genjutsu.athevon.dev
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

Bunshin loads about 16k tokens when it runs. Until then it costs about 133 tokens; SKILL.md has 7,878 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~133
When it runs · the whole SKILL.md, loaded when a task matches: ~16k

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md

allowed-tools: Bash, Read, Edit, Write, Grep, Glob, WebSearch, WebFetch, Artifact, Agent, Workflow, AskUserQuestion

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 7,878 words (~16,098 tokens).

“You direct. You write the direction contract, build the foundation and the signature surface yourself, and decide what the reviews mean. Clones (subagents) research, build pages in parallel on files that never overlap, review through independent lenses, and apply the…”

— opening of SKILL.md by AThevon, Custom licence

name: bunshin
allowed-tools: Bash, Read, Edit, Write, Grep, Glob, WebSearch, WebFetch, Artifact, Agent, Workflow, AskUserQuestion, Skill

Outline of SKILL.md

Bunshin - The Shadow Clones
Voice
bunshin, paint, cast
Iron Rules
Step down, when this is not the job
What this host can summon
The summoning - tiers and cost
Showing Your Work - The Preview Gate
When nobody is answering
Sub-skills Path Detection
Pipeline
0. READ - the project, the brief, the host
1. SUMMON - the first gate
2. HARVEST - the real material
3. RESEARCH - four clones, then a synthesis
4. DIRECTION - the second gate
5. MATERIAL - by evidence, not by reflex
6. FOUNDATION - yours, not a clone's
7. CLONES - the pages, in parallel
8. PROVE - before anyone reviews
9. REVIEW - independent lenses
10. REFINE - the loop
11. SEAL - document, audit, report
Checked here, with evidence
You must run these - not verified here
The final report
Red Flags - You're About to Violate This Skill
Quick decision tree

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/bunshin of AThevon/genjutsu.

Open the folder on GitHubat commit 1f518a7

Compare with similar skills

Bunshin 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.

Bunshin compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Bunshin this skillAThevon/genjutsu	431	—	~16k	Automated safety check: Notes	Custom licence	4 days ago
Claude Code Agent Developmentanthropics/claude-plugins-official	38k	7 repos	~2.8k	Automated safety check: Pass	Apache-2.0	yesterday
Subagent Driven DevelopmentAsvarox/allkaraoke	261	37 repos	~1.2k	Automated safety check: Pass	None	today
Dispatching Parallel Agentsultralisp/ultralisp	258	40 repos	~1.5k	Automated safety check: Pass	None	26 days ago
Paseo Advisor Second Opiniongetpaseo/paseo	20k	1 repos	~756	Automated safety check: Pass	Custom licence	yesterday
Task Observerrebelytics/one-skill-to-rule-them-all	3.2k	1 repos	~12k	Automated safety check: Pass	CC-BY-4.0	7 days ago

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Questions about Bunshin

What does Bunshin do?

Summon shadow clones: genjutsu's full-scale pipeline for a whole website or web app, from scratch or as a full redesign. Bunshin is an agent skill from AThevon/genjutsu. Summon shadow clones: genjutsu's full-scale pipeline for a whole website or web app, from scratch or as a full redesign.

When should I use Bunshin?

Bunshin fits situations like: tasks that involve Subagents.

How do I install Bunshin in Claude Code?

Run `npx skills add AThevon/genjutsu --skill bunshin -a claude-code`. Or copy the skill folder (skills/bunshin in AThevon/genjutsu) into .claude/skills/bunshin in your project. Claude Code loads it when a task matches its description.

How do I install Bunshin in Codex?

Run `npx skills add AThevon/genjutsu --skill bunshin -a codex`. Or copy the skill folder (skills/bunshin in AThevon/genjutsu) into .agents/skills/bunshin in your project. Codex loads it when a task matches its description.

Can I use Bunshin 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 bunshin -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bunshin, .gemini/skills/bunshin, .github/skills/bunshin and .opencode/skills/bunshin in your project.

What does Bunshin need to run?

Going by SKILL.md and its folder, Bunshin needs the command-line tools its instructions call (python3, npx, node, rsync and git). Our summary lists: Python 3; Node.js. Its frontmatter pre-approves these tools: Bash, Read, Edit, Write, Grep, Glob, WebSearch, WebFetch, Artifact, Agent, Workflow, AskUserQuestion, Skill.

Does Bunshin access the network?

SKILL.md names 1 domain. In commands or code: genjutsu.athevon.dev; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Bunshin safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Bunshin use?

Bunshin 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 Bunshin use?

About 16k tokens (SKILL.md is roughly 64k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Bunshin?

Skills that share tags, products or a category with Bunshin: Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars), Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars) and Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Bunshin?

AThevon (a GitHub user) maintains it in AThevon/genjutsu, which has 431 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.

Bunshin

Install Bunshin

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Claude Code Agent Development

Subagent Driven Development

Dispatching Parallel Agents

Paseo Advisor Second Opinion

Task Observer

O2 Review Loop

More from AThevon/genjutsu

Orchestration

Design Audit

UI UX Pro Max

Canvas Generative

Compose Motion

Compose Multiplatform

Questions about Bunshin

Install Bunshin

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from AThevon/genjutsu

Related

Questions about Bunshin