{
  "context": "This criteria evaluates how effectively the engineer uses @formatjs/intl-localematcher to resolve user locale preferences with Unicode extension support. The focus is on proper usage of ResolveLocale function and related locale resolution capabilities.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "ResolveLocale usage",
      "description": "Uses the ResolveLocale function from @formatjs/intl-localematcher as the primary mechanism for locale resolution with extension handling",
      "max_score": 30
    },
    {
      "name": "Extension key processing",
      "description": "Correctly passes relevantExtensionKeys parameter to enable Unicode extension processing (calendar, numbering system, hour cycle)",
      "max_score": 15
    },
    {
      "name": "Locale data integration",
      "description": "Properly provides and structures localeData parameter containing supported extension values for validation",
      "max_score": 15
    },
    {
      "name": "Options override handling",
      "description": "Correctly implements priority order where user options override extension keywords by passing options parameter to ResolveLocale",
      "max_score": 15
    },
    {
      "name": "Result structure extraction",
      "description": "Properly extracts and returns both locale (with extensions) and dataLocale (for data lookups) from ResolveLocale result along with extension property values",
      "max_score": 15
    },
    {
      "name": "Basic locale matching",
      "description": "Uses appropriate locale matching (via ResolveLocale's internal matching or explicit match function) to resolve requested locales against available locales",
      "max_score": 10
    }
  ]
}