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refactor(ui): rename Mosaic Item.Title to Item.Label - #9412

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carp/mosaic-item-title-to-label
Aug 12, 2026
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refactor(ui): rename Mosaic Item.Title to Item.Label#9412
alexcarpenter merged 1 commit into
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carp/mosaic-item-title-to-label

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Description

Item.Title becomes Item.Label.

That name was already taken by a second part: the quiet text on a bare action row (Add account, Sign out of all accounts) and on a group heading. Rather than give it a name of its own, it folds into the new Item.Label as variant='secondary'.

<Item.Label>Clerk</Item.Label>                            // cl-item-label[data-variant='primary']
<Item.Label variant='secondary'>Add account</Item.Label>  // cl-item-label[data-variant='secondary']

The two parts only ever differed by how loud they read, so an axis on one part models that better than two parts do. variant matches Button, and the value reflects as data-variant like every other Mosaic axis, so consumers can scope overrides on it.

secondary declares no color at all. The reset sets color: inherit and StyleX keeps only the last atom that declares a property, so primary displaces it and holds its own color while secondary leaves it standing. That is what puts the secondary label on the row's color and carries it through the row's hover promotion, which a fixed color would freeze. It is also why label.base cannot hold a color.

Slot classes change: cl-item-title is now cl-item-label, and the old cl-item-label is now cl-item-label[data-variant='secondary']. Mosaic is not exported from a public @clerk/ui entry, so no consumer API moves.

Checklist

  • pnpm test runs as expected.
  • pnpm build runs as expected.
  • (If applicable) JSDoc comments have been added or updated for any package exports
  • (If applicable) Documentation has been updated

Type of change

  • 🐛 Bug fix
  • 🌟 New feature
  • 🔨 Breaking change
  • 📖 Refactoring / dependency upgrade / documentation
  • other:

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changeset-bot Bot commented Aug 12, 2026

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🦋 Changeset detected

Latest commit: 19c957d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

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Project Deployment Actions Updated (UTC)
clerk-js-sandbox Ready Ready Preview Aug 12, 2026 1:39pm
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Review Change Stack

📝 Walkthrough

Walkthrough

The Mosaic Item component replaces Item.Title with Item.Label and adds primary and secondary variants. Styles, tests, UserButton rendering, stories, and documentation now use the new API. UserButton accessibility identifiers change from titleId to labelId, and selectors use cl-item-label.

Estimated code review effort: 3 (Moderate) | ~20 minutes

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and concisely identifies the main change: renaming Mosaic Item.Title to Item.Label.
Description check ✅ Passed The description directly explains the rename, secondary variant, styling changes, slot class updates, and validation status.
Docstring Coverage ✅ Passed Docstring coverage is 80.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.

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Makes sense to me!

`Item.Title` becomes `Item.Label`. The part that already held that name,
the quiet text on a bare action row, folds into the new `Item.Label` as
`variant='secondary'` rather than becoming a slot of its own.

The two only ever differed by how loud they read, so an axis on one part
models that better than two parts. `secondary` still declares no color,
which is what keeps it on the row's own color and carries it through the
row's hover promotion.
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commit: 19c957d

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API Changes Report

Generated by Break Check on 2026-08-12T13:41:00.645Z

Summary

Metric Count
Packages analyzed 19
Packages with changes 0
🔴 Breaking changes 0
🟡 Non-breaking changes 0
🟢 Additions 0

No API Changes Detected

All packages have stable APIs with no detected changes.


Report generated by Break Check

Last ran on 19c957d.

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Actionable comments posted: 1

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
packages/ui/src/mosaic/user-button/user-button.view.tsx (1)

295-298: 🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Expose the ActionRow pending state.

When busy is true, the non-link row becomes aria-disabled, but its spinner remains aria-hidden and the row has no aria-busy state. A screen-reader user can hear only an unavailable action, not that the action is in progress. Use the same accessible progress indicator pattern as WorkspaceRow.

Proposed fix
     <Item.Root
       size='xs'
+      aria-busy={busy || undefined}
       render={href ? asAnchor(href) : rowButton(busy || disabled)}
       onClick={onClick}
     >
-      <Item.Media>{busy ? <Spinner size='sm' /> : icon}</Item.Media>
+      <Item.Media>
+        {busy ? (
+          <Spinner
+            role='progressbar'
+            aria-hidden={undefined}
+            aria-label={m.workspaces.pending}
+            size='sm'
+          />
+        ) : (
+          icon
+        )}
+      </Item.Media>
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@packages/ui/src/mosaic/user-button/user-button.view.tsx` around lines 295 -
298, Update the ActionRow rendering around the busy-state logic in
user-button.view.tsx to expose progress accessibly: ensure the non-link row
indicates aria-busy when busy and make the busy Spinner discoverable to
assistive technologies, following the accessible progress-indicator pattern used
by WorkspaceRow while preserving existing disabled behavior.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@packages/ui/src/mosaic/user-button/user-button.view.tsx`:
- Around line 187-188: Update the JSDoc for the UserButton view’s labelId prop
to describe the referenced control target as a “label element” instead of a
“title element,” matching the Item.Title-to-Item.Label migration and current
accessibility contract.

---

Outside diff comments:
In `@packages/ui/src/mosaic/user-button/user-button.view.tsx`:
- Around line 295-298: Update the ActionRow rendering around the busy-state
logic in user-button.view.tsx to expose progress accessibly: ensure the non-link
row indicates aria-busy when busy and make the busy Spinner discoverable to
assistive technologies, following the accessible progress-indicator pattern used
by WorkspaceRow while preserving existing disabled behavior.
🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

ℹ️ Review info
⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Pro Plus

Run ID: cac96b62-abc2-4ac2-b976-bb4af6f9dd6c

📥 Commits

Reviewing files that changed from the base of the PR and between 3d3cd11 and 19c957d.

📒 Files selected for processing (2)
  • packages/ui/src/mosaic/user-button/__tests__/user-button.view.test.tsx
  • packages/ui/src/mosaic/user-button/user-button.view.tsx
🔗 Linked repositories identified

CodeRabbit considers these linked repositories for cross-repo context during reviews:

  • clerk/clerk_go (manual)
  • clerk/dashboard (manual)
  • clerk/accounts (manual)
  • clerk/backoffice (manual)
  • clerk/clerk (manual)
  • clerk/clerk-docs (manual)
  • clerk/cloudflare-workers (manual)
  • clerk/clerk-ios (auto-detected)
  • clerk/cli (auto-detected)
  • clerk/clerk-android (auto-detected)
🚧 Files skipped from review as they are similar to previous changes (1)
  • packages/ui/src/mosaic/user-button/tests/user-button.view.test.tsx

Comment on lines 187 to +188
/** Names the title element, for a control in the row that has to point at the workspace it acts on. */
titleId?: string;
labelId?: string;

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📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Update the labelId documentation.

The prop now identifies Item.Label, but its JSDoc still calls the target a “title element”. Use “label element” so the accessibility contract matches the Item.Title to Item.Label migration.

Proposed wording
-  /** Names the title element, for a control in the row that has to point at the workspace it acts on. */
+  /** Identifies the workspace label for controls that act on this row. */
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
/** Names the title element, for a control in the row that has to point at the workspace it acts on. */
titleId?: string;
labelId?: string;
/** Identifies the workspace label for controls that act on this row. */
labelId?: string;
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@packages/ui/src/mosaic/user-button/user-button.view.tsx` around lines 187 -
188, Update the JSDoc for the UserButton view’s labelId prop to describe the
referenced control target as a “label element” instead of a “title element,”
matching the Item.Title-to-Item.Label migration and current accessibility
contract.

@alexcarpenter
alexcarpenter merged commit cd69207 into main Aug 12, 2026
52 checks passed
@alexcarpenter
alexcarpenter deleted the carp/mosaic-item-title-to-label branch August 12, 2026 14:06
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