node

node is a skill for Claude Code, Codex from thewolffish/wolffish-app. It costs 9 tokens per session (825 once invoked), scanned B, original, MIT.

A Node.js runtime and npm package manager setup for coding-agent tasks. Node.js runs JavaScript outside a web browser, and npm installs JavaScript packages.

In plain words
What is it for?
Use it to run Node.js programs and install or manage npm dependencies.
Why use it?
It checks whether a usable Node.js version is available and provides a managed installation path when it is not.

Skill for Claude CodeCodex

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/thewolffish/wolffish-app/node
Any agent
npx skills add thewolffish/wolffish-app --skill node
Clone the repo
git clone --depth 1 https://github.com/thewolffish/wolffish-app

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 node

README.md
[![agentmods](https://agentmods.dev/badge/skills/thewolffish/wolffish-app/node.svg)](https://agentmods.dev/skills/thewolffish/wolffish-app/node)
Your own site
<a href="https://agentmods.dev/skills/thewolffish/wolffish-app/node"><img src="https://agentmods.dev/badge/skills/thewolffish/wolffish-app/node.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 825 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00009 $0.00825
Opus 5 $0.00005 $0.00413
Sonnet 5 $0.00002 $0.00165
Haiku 4.5 $0.00001 $0.00082

Measured 3d ago against content hash ce527f0679e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

node scanned grade B with 1 finding 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (plugin/index.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Do NOT install Node yourself with raw `shell_exec` `sudo apt install nodejs` (or
src/defaults/workspace/brain/cerebellum/node/SKILL.md · 118 lines

What it actually says

Node.js

Usage

Use node_check to verify a usable Node.js (24+) is available and get the version. If not, call node_install (requires user approval) — and trust it.

node_install is the default and needs no admin rights: it reuses an existing global Node ≥24 if one is present, and otherwise downloads the official no-root Node into ~/.wolffish/bin. No package manager, no password prompt. This is the same managed-first policy the python capability uses, so it works the same on a fresh machine with nothing pre-installed.

node_install_system is optional and only for when the user explicitly wants a globally visible Node in their own terminal. It installs system-wide via the OS (Homebrew / official MSI+UAC / apt|dnf+sudo) and prompts once for the admin password; if elevation is declined or unavailable, it falls back to the no-root copy so the user is never left stuck. Prefer node_install unless asked otherwise.

Do NOT install Node yourself with raw shell_exec sudo apt install nodejs (or pkexec/brew/winget/msiexec). Use the tools above — they route through the shared password session and the approval gate. If one returns a permission or "password prompt cancelled" error, surface it; that error is deterministic, so don't retry the same command.

Once installed, use the shell_exec tool for node, npm, and npx commands.

Files

What ships with it

1 file 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. 3d ago First seen · 118 lines · 9 tokens per session scan B ce527f0679e7

Subscribe to this mod's changes

node is a skill published in the GitHub repository thewolffish/wolffish-app (5 stars, last pushed 3d ago), licensed MIT. It adds 9 tokens to every session and 825 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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