Individual skill

experience-ui-bundle-localize

MUST activate to localize / internationalize a uiBundles/*/src/ project (React or Angular): extract hardcoded user-facing strings into Custom Labels, wire a runtime i18n library over the Platform SDK backend, add labels for another language, or troubleshoot label rendering across locales. Triggers: user-facing string literals in component files, a CustomLabels.labels-meta.xml, a src/i18n/ directory or label-manifest.ts, translation call sites, or requests to 'translate / localize / internationalize / support another language.' Scope: authenticated B2E UI Bundles and B2C site bundles. Use experience-ui-bundle-site-generate instead for site language configuration or sfdc_cms__languageSettings. DO NOT TRIGGER for B2B site bundles, building app shell/UI or styling, reading/writing/refreshing records (use experience-ui-bundle-salesforce-data-access), generating a new bundle (use experience-ui-bundle-frontend-generate), deploying (use experience-ui-bundle-deploy), or authoring translations in Translation Workbench.

plugins/builder/experience-react/skills/experience-ui-bundle-localize/SKILL.md

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# Localize a UI Bundle

Localize a UI Bundle: extract user-facing strings into Salesforce Custom Labels, wire a
runtime i18n library over the Platform SDK backend, and verify labels across locales.

This file is the **framework-neutral workflow + guardrail spine**. The framework-specific
detail — which i18n library, the translation call convention, the files scanned, the wiring
shape, and the depth docs — lives in a per-framework reference.

## The one-paragraph mental model

A UI Bundle can't use compile-time label imports the way LWC does (`@salesforce/label/*`
resolves inside the platform's compiler, which your standalone bundle doesn't go through).
Instead, your app **fetches labels at runtime** through the Salesforce GraphQL UI API and