setup

setup is a skill for Claude Code, Codex from happy-nut/claude-plugin-viban. It costs 12 tokens per session (3,832 once invoked), scanned B, original, MIT.

An interactive setup script for installing viban project dependencies and configuring the project workflow. It checks the operating system, package manager, and required command-line tools.

In plain words
What is it for?
Use it to check for zsh, Python, gum, jq, and viban, install missing dependencies with the detected system package manager, and configure the project through an interview.
Why use it?
It identifies missing tools and guides the project through the initial installation instead of requiring manual environment setup.

Skill for Claude CodeCodex

Part of the viban plugin — 7 skills, 7 commands, 1 hook shipped together

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.

agentmods
npx agentmods add skills/happy-nut/claude-plugin-viban/setup
Any agent
npx skills add happy-nut/claude-plugin-viban --skill setup
Clone the repo
git clone --depth 1 https://github.com/happy-nut/claude-plugin-viban

Made for: Claude Code, Codex.

Or install viban, the plugin that ships this one along with the rest of its 7 skills, 7 commands, 1 hook.

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 setup

README.md
[![agentmods](https://agentmods.dev/badge/skills/happy-nut/claude-plugin-viban/setup.svg)](https://agentmods.dev/skills/happy-nut/claude-plugin-viban/setup)
Your own site
<a href="https://agentmods.dev/skills/happy-nut/claude-plugin-viban/setup"><img src="https://agentmods.dev/badge/skills/happy-nut/claude-plugin-viban/setup.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,832 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
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 $0.00012 $0.03832
Opus 5 $0.00006 $0.01916
Sonnet 5 $0.00002 $0.00766
Haiku 4.5 $0.00001 $0.00383

Measured 4d ago against content hash 26dd2bdd7a54, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

setup scanned grade B with 2 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 4d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt update

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
skills/setup/SKILL.md · 462 lines

How it starts

The opening of the file, as written. The whole thing — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/setup - Install Dependencies

Automatically install all viban dependencies based on the operating system.

Execution Steps

Step 1: Detect OS and Package Manager

# Detect OS
if [[ "$OSTYPE" == "darwin"* ]]; then
    OS="macos"
    PKG_MANAGER="brew"
elif [[ "$OSTYPE" == "linux-gnu"* ]]; then
    OS="linux"
    if command -v apt &> /dev/null; then
        PKG_MANAGER="apt"
    elif command -v dnf &> /dev/null; then
        PKG_MANAGER="dnf"
    elif command -v pacman &> /dev/null; then
        PKG_MANAGER="pacman"
    fi
fi

Report detected OS and package manager to user.

Step 2: Check Existing Dependencies

Check which dependencies are already installed:

command -v zsh &> /dev/null && echo "✓ zsh" || echo "✗ zsh"
command -v python3 &> /dev/null && echo "✓ python3" || echo "✗ python3"
command -v gum &> /dev/null && echo "✓ gum" || echo "✗ gum"
command -v jq &> /dev/null && echo "✓ jq" || echo "✗ jq"
command -v viban &> /dev/null && echo "✓ viban ($(viban --version 2>/dev/null || echo 'not installed'))" || echo "✗ viban"

Step 3: Install Missing Dependencies

For each missing dependency, run the appropriate install command:

macOS (Homebrew)
# Install Homebrew if not present
if ! command -v brew &> /dev/null; then
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
fi

# Install dependencies
brew install zsh gum jq
Linux (apt - Debian/Ubuntu)
# Install zsh and jq
sudo apt update
sudo apt install -y zsh jq

# Install gum (requires Charm repo)
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://repo.charm.sh/apt/gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/charm.gpg
echo "deb [signed-by=/etc/apt/keyrings/charm.gpg] https://repo.charm.sh/apt/ * *" | sudo tee /etc/apt/sources.list.d/charm.list
sudo apt update
sudo apt install -y gum
Linux (dnf - Fedora/RHEL)
sudo dnf install -y zsh jq

# Install gum
echo '[charm]
name=Charm
baseurl=https://repo.charm.sh/yum/
enabled=1
gpgcheck=1
gpgkey=https://repo.charm.sh/yum/gpg.key' | sudo tee /etc/yum.repos.d/charm.repo
sudo dnf install -y gum

Read the full file on GitHub · 462 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. 4d ago First seen · 462 lines · 12 tokens per session scan B 26dd2bdd7a54

Subscribe to this mod's changes

setup is a skill published in the GitHub repository happy-nut/claude-plugin-viban (5 stars, last pushed 6mo ago), licensed MIT. It adds 12 tokens to every session and 3,832 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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