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stories

stories is a skill for Claude Code from storybookjs/mcp. It costs 77 tokens per session (560 once invoked), scanned A, original, MIT.

Instructions for using Storybook, a tool for developing and previewing user-interface components in isolation. They define the required workflow for creating, changing, deleting, and checking components and their stories.

In plain words
What is it for?
Use them when changing UI components, styles, themes, colors, or design tokens, or when creating or reviewing Storybook stories.
Why use it?
They help keep component examples and visual checks in sync with the interface code.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the storybook plugin — 4 skills shipped together

not rated 271repo 2mo ago A scan SkillSpector: warn 77 tokens original MIT archived

Good fit Use them when changing UI components, styles, themes, colors, or design tokens, or when creating or reviewing Storybook stories.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/storybookjs/mcp/stories
View source ↗ storybookjs/mcp storybook-evals.vercel.app
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 stories
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.

agentmods badge for stories

README.md
[![agentmods](https://agentmods.dev/badge/skills/storybookjs/mcp/stories/github.svg)](https://agentmods.dev/skills/storybookjs/mcp/stories)
Your own site
<a href="https://agentmods.dev/skills/storybookjs/mcp/stories"><img src="https://agentmods.dev/badge/skills/storybookjs/mcp/stories/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.

agentmods 80×15 button for stories

Your own site · 80×15
<a href="https://agentmods.dev/skills/storybookjs/mcp/stories"><img src="https://agentmods.dev/badge/skills/storybookjs/mcp/stories.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 560 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: 3 findings, 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 11
    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]
  • medium MCP Rug Pull · line 15
    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]
  • medium MCP Rug Pull · line 17
    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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00077 $0.00560
Opus 5.5 $0.00031 $0.00224
Sonnet 5.5 $0.00015 $0.00112
Haiku 4.5 $0.00008 $0.00056

Measured 2mo ago against content hash a32e6eabb75c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

stories 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.

packages/claude-plugin/skills/stories/SKILL.md · 23 lines

What it actually says

Prerequisites:

  1. Storybook must be installed in the project. Invoke the /storybook-init skill to set up Storybook, but only if the user explicitly invoked this skill and approves a Storybook installation.
  2. Storybook must be at least 10.5 (or next while 10.5 is not yet released). Invoke the /storybook-upgrade skill to upgrade it, but only if the user explicitly approved a Storybook upgrade.
  3. Ensure @storybook/addon-mcp is installed. If it is missing, install it with npx storybook add @storybook/addon-mcp.

Run the Storybook dev server and every storybook ai command from the same working directory: the package where Storybook is installed (in a monorepo often a leaf package such as packages/ui).

Run STORYBOOK_FEATURE_AI_CLI=1 npx storybook ai --help and read the output in its entirety to get the mandatory, ordered workflow for working on UI changes, writing stories, and keeping stories in sync with every frontend component you create, modify, or delete. This workflow explains how to write stories, preview stories, and display a curated Storybook review.

Before invoking any storybook ai command for the first time in a session, run STORYBOOK_FEATURE_AI_CLI=1 npx storybook ai <command> --help and read it fully. The top-level help only lists the commands; each command's payload shape and usage rules (which fields to include when) live in its own help output. Never guess a --json payload from the command name — a validation error only reports missing required fields, not the optional fields the workflow expects you to provide.

Some commands require a running Storybook dev server. When Claude preview tooling is available, start the dev server through that tooling:

  1. Ensure there is a Storybook launch entry in .claude/launch.json (the preview_start tool description documents the file format) with autoPort: true and port: 6006. Use the project's preferred package manager and existing package.json Storybook script instead of inventing a new command whenever possible.
  2. Start the Storybook launch entry with the preview_start tool.
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. 2mo ago First seen · 23 lines · 77 tokens per session scan A a32e6eabb75c

Subscribe to this mod's changes

stories is a skill published in the GitHub repository storybookjs/mcp (271 stars, last pushed 2mo ago), licensed MIT. It adds 77 tokens to every session and 560 once invoked, about $0.0003 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.

Design and UXFrontend
Related

stories compared with skills from other repositories

stories next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
storiesstorybookjs/mcpSkill2712mo agoMITA77Claude Code
webgl-holographic-foilnexu-io/open-designSkill106kyesterdayApache-2.0A41Claude Code, Codex
html-ppt-hermes-cyber-terminalnexu-io/open-designSkill106kyesterdayApache-2.0A53Claude Code, Codex
html-ppt-taste-brutalistnexu-io/open-designSkill106kyesterdayApache-2.0A78Claude Code, Codex
visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
accessibilitymicrosoft/hve-coreSkill1.6kyesterdayMITA47Claude Code