Storybook Core

The @storybook/core package is the core of Storybook. It is responsible for the following:

the main UI of storybook
the UI used by addons
the API used by addons
the API used by the CLI
the API used by the server
prebundled code used by the browser
static assets used by the browser
utilities for CSF, MDX & Docs

Private package

This package is not intended to be used by anyone but storybook internally.

Even though this is where all of the code is located, it is NOT to be the entry point when using functionality within!

Consumers of the code should import like so:

import { addons } from 'storybook/internal/manager-api';

Importing from @storybook/core is explicitly NOT supported; it WILL break in a future version of storybook, very likely in a non-major version bump.