Experimentation

[yannbf]

Closes #

What I did

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli-storybook/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the @storybookjs/core team here.

core team members can create a canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=<PR_NUMBER>

[nx-cloud]

View your CI Pipeline Execution ↗ for commit ffcd639

Command	Status	Duration	Result
nx run-many -t build --parallel=3	✅ Succeeded	1m	View ↗

---

☁️ Nx Cloud last updated this comment at 2025-07-09 10:48:00 UTC

[github-actions]

	Fails
🚫	PR title must be in the format of "Area: Summary", With both Area and Summary starting with a capital letter Good examples: - "Docs: Describe Canvas Doc Block" - "Svelte: Support Svelte v4" Bad examples: - "add new api docs" - "fix: Svelte 4 support" - "Vue: improve docs"

Generated by 🚫 dangerJS against ffcd639

[storybook-pr-benchmarking]

Package Benchmarks

^{Commit: ffcd639, ran on 9 July 2025 at 10:30:55 UTC}

The following packages have significant changes to their size or dependencies:

storybook

	Before	After	Difference
Dependency count	51	48	🎉 -3 🎉
Self size	31.76 MB	21.98 MB	🎉 -9.78 MB 🎉
Dependency size	17.43 MB	17.20 MB	🎉 -233 KB 🎉
Bundle Size Analyzer	Link	Link

@storybook/nextjs-vite

	Before	After	Difference
Dependency count	130	130	0
Self size	3.08 MB	3.19 MB	🚨 +115 KB 🚨
Dependency size	22.27 MB	22.27 MB	🎉 -642 B 🎉
Bundle Size Analyzer	Link	Link

sb

	Before	After	Difference
Dependency count	52	49	🎉 -3 🎉
Self size	1 KB	1 KB	🚨 +9 B 🚨
Dependency size	49.20 MB	39.19 MB	🎉 -10.01 MB 🎉
Bundle Size Analyzer	Link	Link

@storybook/cli

	Before	After	Difference
Dependency count	217	216	🎉 -1 🎉
Self size	582 KB	651 KB	🚨 +69 KB 🚨
Dependency size	93.67 MB	86.81 MB	🎉 -6.87 MB 🎉
Bundle Size Analyzer	Link	Link

@storybook/codemod

	Before	After	Difference
Dependency count	186	185	🎉 -1 🎉
Self size	31 KB	31 KB	🚨 +6 B 🚨
Dependency size	77.77 MB	67.81 MB	🎉 -9.96 MB 🎉
Bundle Size Analyzer	Link	Link

create-storybook

	Before	After	Difference
Dependency count	1	1	0
Self size	12.50 MB	15.60 MB	🚨 +3.10 MB 🚨
Dependency size	98 KB	98 KB	🚨 +4 B 🚨
Bundle Size Analyzer	Link	Link