Build: NX resource-class eval (cohort 2) — linux-browsers-js = extra_large+

[kasperpeulen]

Closes #

What I did

NX Cloud resource-class sweep — cohort 2, branch 1 of 6. Do not merge.

Second cohort of 6 PRs that mirror the first cohort (#34572-#34576 + #34578). Doubles the data volume per class and lets variance between identical-class branches act as a flake sanity check. Each cohort-2 PR varies exactly one line: .nx/workflows/agents.yaml → linux-browsers-js.resource-class = docker_linux_amd64/extra_large+ (60 credits/min).

Class	Cohort 1	Cohort 2
extra_large+ (60)	nx-rc-xlarge-plus	nx-rc-xlarge-plus-2
extra_large (40)	nx-rc-xlarge	nx-rc-xlarge-2
large+ (30)	nx-rc-large-plus	nx-rc-large-plus-2
large (20)	nx-rc-large	nx-rc-large-2
medium+ (15)	nx-rc-medium-plus	nx-rc-medium-plus-2
medium (10)	nx-rc-medium	nx-rc-medium-2

Traffic: cohort 2 is driven by a separate retrigger loop (scripts/retrigger-ci.ts on kasper/nx-rc-retrigger-2) on a 30-min cadence, so per-PR concurrency queues don't stack. linux-js stays at extra_large+ across all branches.

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

Caution

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

No manual test necessary — this PR exists only to exercise CI traffic. Verify by opening the PR's NX Cloud CIPE (GH check nx: normal) and confirming the linux-browsers-js agents are running on docker_linux_amd64/extra_large+ (visible in the agent metadata on cloud.nx.app). The sync script scripts/evaluate-ci.ts records credit_multiplier = 60 per CIPE in scripts/ci-eval.db.

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 publish.yml --field pr=<PR_NUMBER>

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 4e5759c

Command	Status	Duration	Result
nx run-many -t compile,check,knip,test,lint,fmt...	✅ Succeeded	8m 54s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-04-17 18:16:34 UTC