What is storybook-init?

A setup procedure for adding Storybook to a project that does not have it configured. Storybook is a tool for developing and testing user-interface components separately from the full application.

It is for creating a new Storybook setup and adding the Storybook integration used by the agent.

It gives the agent the installation and integration steps needed to begin using Storybook.

storybook-init — Skill for Claude Code by storybookjs/mcp

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 storybookjs/mcp --skill storybook-init

Clone the repo

git clone --depth 1 https://github.com/storybookjs/mcp

Made for: Claude Code.

Or install storybook, the plugin that ships this one along with the rest of its 4 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/storybookjs/mcp/storybook-init/github.svg)](https://agentmods.dev/skills/storybookjs/mcp/storybook-init)

Your own site

<a href="https://agentmods.dev/skills/storybookjs/mcp/storybook-init"><img src="https://agentmods.dev/badge/skills/storybookjs/mcp/storybook-init/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/storybookjs/mcp/storybook-init"><img src="https://agentmods.dev/badge/skills/storybookjs/mcp/storybook-init.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 133 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium MCP Rug Pull · line 7
npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.

Fix: Pin the version: npx @scope/[email protected]

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00020	$0.00133
Opus 5.5	$0.00008	$0.00053
Sonnet 5.5	$0.00004	$0.00027
Haiku 4.5	$0.00002	$0.00013

Measured 2mo ago against content hash 225a3d6829ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

storybook-init 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

Copies of this mod

1 near-identical copy found in the catalogue:

init — 97% identical, 4 lines differ

packages/claude-plugin/skills/storybook-init/SKILL.md · 9 lines

What it actually says

Run npm create storybook@latest inside your project's root directory to install the latest version of Storybook. Use the matching package-manager command when appropriate, such as pnpm create storybook@latest or yarn create storybook.
After initialization succeeds, run npx storybook add @storybook/addon-mcp.
Invoke the /storybook-setup skill to help the user set up project-specific Storybook configuration, such as the .storybook/preview.ts file.

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.

2mo ago First seen · 9 lines · 20 tokens per session scan A 225a3d6829ad

Subscribe to this mod's changes

storybook-init is a skill published in the GitHub repository storybookjs/mcp (271 stars, last pushed 2mo ago), licensed MIT. It adds 20 tokens to every session and 133 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Frontend

storybook-init next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
storybook-initstorybookjs/mcp	Skill	271	2mo ago	MIT	A	20	Claude Code
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code