Individual skill
pluralization
Use when reviewing string concatenation involving counts, translation key lookups, or i18n library configurations to check whether plural forms are handled correctly for all target locales.
skills/pluralization/SKILL.md
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SKILL.mdcore · 2,214 bytesreferences/rule.mddoc · 9,148 bytes
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# Handle plural forms with Intl.PluralRules or ICU MessageFormat
Pluralization rules vary dramatically across languages — what works as a simple singular/plural branch in English produces grammatically wrong output in Arabic, Russian, Polish, and dozens of other languages. Shipping incorrect plurals signals low translation quality and breaks trust with native speakers in target markets.
## Quick Reference
- English has 2 plural forms but Arabic has 6 and Russian has 3
- Never concatenate a count with a string like '"You have " + count + " items"'
- Use Intl.PluralRules to select the right message key per locale
- ICU MessageFormat in react-intl or i18next handles plural selection automatically
## Check
Find all places in this codebase where a count value is concatenated with a string or where only singular/plural branching is used, without Intl.PluralRules or ICU plural syntax.