locale placeholder contract audit derived

{
  "input": {
    "body": {
      "locales": [
        {
          "base": true,
          "locale": "en",
          "messages": {
            "app": {
              "title": "Dashboard",
              "greeting": "Hello, {name}"
            },
            "cart": {
              "item_one": "You have {count} item in your cart",
              "item_other": "You have {count} items in your cart"
            },
            "legal": {
              "terms": "By continuing you accept the <a href=\"/terms\">terms</a>"
            },
            "errors": {
              "retry": "Try again",
              "generic": "Something went wrong"
            },
            "shared": {
              "cancel": "Cancel",
              "dismiss": "Cancel"
            },
            "invoice": {
              "total": "Total: {amount, number, ::currency/USD}"
            }
          }
        },
        {
          "locale": "de",
          "messages": {
            "app": {
              "title": "Übersicht",
              "greeting": "Hallo, {vorname}"
            },
            "cart": {
              "item_one": "Sie haben {count} Artikel im Warenkorb",
              "item_other": "Sie haben {count} Artikel im Warenkorb"
            },
            "legal": {
              "terms": "Mit dem Fortfahren akzeptieren Sie die <a href=\"/terms\">Bedingungen</a>"
            },
            "errors": {
              "retry": "Erneut versuchen",
              "generic": "Etwas ist schiefgelaufen"
            },
            "shared": {
              "cancel": "Abbrechen",
              "dismiss": "Verwerfen"
            },
            "invoice": {
              "total": "Gesamt"
            }
          }
        },
        {
          "locale": "fr",
          "messages": {
            "app": {
              "title": "Tableau de bord",
              "greeting": "Bonjour, {{name}}"
            },
            "cart": {
              "item_one": "Vous avez {count} article",
              "item_other": "Vous avez {count} articles"
            },
            "legal": {
              "terms": "En continuant vous acceptez les conditions"
            },
            "errors": {
              "retry": "Réessayer",
              "generic": "Une erreur est survenue"
            },
            "shared": {
              "cancel": "Annuler",
              "dismiss": "Ignorer"
            },
            "invoice": {
              "total": "Total : {amount}"
            }
          }
        }
      ]
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "limits": {
        "maxKeys": 50000,
        "maxLocales": 60,
        "maxFindings": 500,
        "maxFileBytes": 2097152,
        "maxValueLength": 32768
      },
      "passed": false,
      "complete": true,
      "findings": [
        {
          "key": "app.greeting",
          "code": "PLACEHOLDER_MISSING",
          "detail": "de is missing name from app.greeting. Some renderers substitute nothing and others throw, so this is a blank in one stack and a crash in the next.",
          "locale": "de"
        },
        {
          "key": "app.greeting",
          "code": "PLACEHOLDER_NOT_IN_BASE",
          "detail": "de uses vorname in app.greeting and the base string does not. Nothing supplies it, so it renders as the literal text or as undefined.",
          "locale": "de"
        },
        {
          "key": "app.greeting",
          "code": "PLACEHOLDER_SYNTAX_DIFFERS",
          "detail": "app.greeting uses icu in en and mustache in fr. One renderer reads one syntax, so the other is left as literal text.",
          "locale": "fr"
        }
      ],
      "consistent": false,
      "request_id": "example-request",
      "service_id": "locale_placeholder_contract_audit",
      "assumptions": [
        "ICU braces, printf conversions and mustache pairs are all recognised, because a project uses one of them and reading only one would report every string in the others as having no placeholders at all.",
        "An unindexed printf placeholder cannot be reordered, so a translation that reorders them is reported: the renderer substitutes in the base order regardless, which makes a correct translation render wr...",
        "A key absent from a locale is not reported here, since that is a coverage question rather than a placeholder one. locale_key_coverage_audit answers it."
      ],
      "base_locale": "en",
      "limitations": [
        "Placeholder structure across the files supplied. Whether a translation is accurate or idiomatic is outside this entirely, and no renderer is run.",
        "consistent is true only when every translated message carried exactly the base placeholders in a usable form."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "locale_count": 3,
      "not_examined": [],
      "finding_count": 7,
      "base_key_count": 10,
      "service_version": "1.0.0",
      "findings_by_code": {
        "PLACEHOLDER_MISSING": 3,
        "PLACEHOLDER_NOT_IN_BASE": 2,
        "PLACEHOLDER_SYNTAX_DIFFERS": 2
      },
      "compared_message_count": 20,
      "keys_with_placeholders": 4
    }
  }
}