diff --git a/README.md b/README.md
index a9559c83..5b62f029 100644
--- a/README.md
+++ b/README.md
@@ -541,11 +541,12 @@ KETO_WRITE_URL = "http://keto:4467"
 ```
 
 ## 🌐 i18n 구조 (간략)
-- **Source of Truth**: `locales/template.toml`이 전체 키의 기준이며 `locales/ko.toml`, `locales/en.toml`과 항상 동기화합니다.
-- **React(Admin/Dev)**: `adminfront/src/lib/i18n.ts`, `devfront/src/lib/i18n.ts`에서 `t(key, fallback, vars)`로 사용하고 TOML을 `?raw`로 로드합니다.
+- **Root locales**: `locales/template.toml`, `locales/ko.toml`, `locales/en.toml`은 현재 `userfront`와 전역 i18n 검증 기준 리소스입니다.
+- **Common locales**: `common/locales/template.toml`, `common/locales/ko.toml`, `common/locales/en.toml`은 `ui.common.*`, `msg.common.*` 같은 React 공통 문구 레이어입니다.
+- **React(Admin/Dev/Org)**: `adminfront/src/lib/i18n.ts`, `devfront/src/lib/i18n.ts`, `orgfront/src/lib/i18n.ts`에서 `t(key, fallback, vars)`를 사용하며 `common locale -> app locale override` 순서로 TOML을 `?raw` 로드합니다.
 - **Flutter(User)**: `userfront/lib/i18n.dart`에서 `tr(key, fallback, params)` 사용. `locales/*.toml`을 `tools/i18n-scanner/gen-flutter-i18n.js`로 `userfront/lib/i18n_data.dart`에 사전 생성합니다.
 - **UserFront 동기화 규칙**: `locales/*.toml`을 수정한 뒤에는 반드시 `./scripts/sync_userfront_locales.sh`를 실행해 `userfront/assets/translations/*.toml`과 런타임 번역 리소스를 동기화합니다.
-- **검증**: `node tools/i18n-scanner/index.js`로 코드-키-로케일 동기화 상태를 점검합니다.
+- **검증**: `node tools/i18n-scanner/index.js`로 `root locales`와 `common/locales`의 코드-키-로케일 동기화 상태를 함께 점검합니다.
 
 ## 🧪 Code Check CI
 워크플로우 파일: `.gitea/workflows/code_check.yml`
diff --git a/common/locales/en.toml b/common/locales/en.toml
index 73d530b6..e27eff98 100644
--- a/common/locales/en.toml
+++ b/common/locales/en.toml
@@ -1,6 +1,9 @@
 [msg.common]
+copied = "Copied."
 error = "Error"
+forbidden = "Access denied."
 loading = "Loading..."
+no_results = "No results found."
 no_description = "No Description."
 parsing = "Parsing data..."
 requesting = "Requesting..."
@@ -8,9 +11,11 @@ saving = "Saving..."
 unknown_error = "unknown error"
 
 [ui.common]
+actions = "Actions"
 add = "Add"
 all = "All"
 admin_only = "Admin Only"
+approve = "Approve"
 assign = "Assign"
 back = "Back"
 back_to_login = "Back to login"
@@ -20,19 +25,27 @@ clear_search = "Clear Search"
 close = "Close"
 collapse = "Collapse"
 confirm = "Confirm"
+continue = "Continue"
 copy = "Copy"
 create = "Create"
 delete = "Delete"
+detail = "Detail"
 details = "Details"
 disabled = "Disabled"
 edit = "Edit"
 enabled = "Enabled"
 export = "Export"
+export_with_ids = "Include UUID"
+export_without_ids = "Export without UUID"
 fail = "Fail"
 go_home = "Go Home"
+info = "Info"
 view = "View"
 hyphen = "-"
+loading = "Loading..."
 manage = "Manage"
+move = "Move"
+move_org = "Move to another organization"
 na = "N/A"
 never = "Never"
 next = "Next"
@@ -41,14 +54,19 @@ page_of = "Page {{page}} of {{total}}"
 prev = "Prev"
 previous = "Previous"
 qr = "QR"
+reject = "Reject"
+rejected = "Rejected"
 reset = "Reset"
 read_only = "Read Only"
 refresh = "Refresh"
 remove = "Remove"
+remove_org = "Remove from organization"
 resend = "Resend"
 retry = "Retry"
+row = "Row"
 save = "Save"
 search = "Search"
+search_group = "Search groups..."
 select = "Select"
 select_file = "Select File"
 select_placeholder = "Select Placeholder"
@@ -56,10 +74,13 @@ show_more = "Show More"
 language = "Language"
 language_ko = "Korean"
 language_en = "English"
+submit = "Submit"
+submitting = "Submitting..."
 success = "Success"
 theme_dark = "Dark"
 theme_light = "Light"
 theme_toggle = "Theme Toggle"
+unassigned = "Unassigned"
 unknown = "Unknown"
 
 [ui.common.badge]
diff --git a/common/locales/ko.toml b/common/locales/ko.toml
index f5cf7c74..7e86dd7b 100644
--- a/common/locales/ko.toml
+++ b/common/locales/ko.toml
@@ -1,6 +1,9 @@
 [msg.common]
+copied = "복사되었습니다."
 error = "오류가 발생했습니다."
+forbidden = "접근 권한이 없습니다."
 loading = "로딩 중..."
+no_results = "검색 결과가 없습니다."
 no_description = "설명이 없습니다."
 parsing = "데이터 파싱 중..."
 requesting = "요청 중..."
@@ -8,9 +11,11 @@ saving = "저장 중..."
 unknown_error = "알 수 없는 오류"
 
 [ui.common]
+actions = "액션"
 add = "추가"
 all = "전체"
 admin_only = "관리자 전용"
+approve = "승인"
 assign = "할당"
 back = "돌아가기"
 back_to_login = "로그인으로 돌아가기"
@@ -20,19 +25,27 @@ clear_search = "검색 초기화"
 close = "닫기"
 collapse = "접기"
 confirm = "확인"
+continue = "계속 진행"
 copy = "복사"
 create = "생성"
 delete = "삭제"
+detail = "상세보기"
 details = "상세정보"
 disabled = "사용 안 함"
 edit = "편집"
 enabled = "사용"
 export = "내보내기"
+export_with_ids = "UUID 포함"
+export_without_ids = "UUID 제외 내보내기"
 fail = "실패"
 go_home = "홈으로"
+info = "상세 안내"
 view = "보기"
 hyphen = "-"
+loading = "로딩 중..."
 manage = "관리"
+move = "이동"
+move_org = "타 조직으로 이동"
 na = "N/A"
 never = "Never"
 next = "다음"
@@ -41,14 +54,19 @@ page_of = "Page {{page}} of {{total}}"
 prev = "이전"
 previous = "이전"
 qr = "QR"
+reject = "반려"
+rejected = "반려됨"
 reset = "초기화"
 read_only = "읽기 전용"
 refresh = "새로고침"
 remove = "제외"
+remove_org = "조직에서 제외"
 resend = "재발송"
 retry = "다시 시도"
+row = "행"
 save = "저장"
 search = "검색"
+search_group = "그룹 검색..."
 select = "선택"
 select_file = "파일 선택"
 select_placeholder = "선택하세요"
@@ -56,10 +74,13 @@ show_more = "+ 더보기"
 language = "언어"
 language_ko = "한국어"
 language_en = "English"
+submit = "신청하기"
+submitting = "제출 중..."
 success = "성공"
 theme_dark = "Dark"
 theme_light = "Light"
 theme_toggle = "테마 전환"
+unassigned = "미배정"
 unknown = "Unknown"
 
 [ui.common.badge]
diff --git a/common/locales/template.toml b/common/locales/template.toml
index 1cb9e149..3c16a2b3 100644
--- a/common/locales/template.toml
+++ b/common/locales/template.toml
@@ -1,6 +1,9 @@
 [msg.common]
+copied = ""
 error = ""
+forbidden = ""
 loading = ""
+no_results = ""
 no_description = ""
 parsing = ""
 requesting = ""
@@ -8,9 +11,11 @@ saving = ""
 unknown_error = ""
 
 [ui.common]
+actions = ""
 add = ""
 all = ""
 admin_only = ""
+approve = ""
 assign = ""
 back = ""
 back_to_login = ""
@@ -20,19 +25,27 @@ clear_search = ""
 close = ""
 collapse = ""
 confirm = ""
+continue = ""
 copy = ""
 create = ""
 delete = ""
+detail = ""
 details = ""
 disabled = ""
 edit = ""
 enabled = ""
 export = ""
+export_with_ids = ""
+export_without_ids = ""
 fail = ""
 go_home = ""
+info = ""
 view = ""
 hyphen = ""
+loading = ""
 manage = ""
+move = ""
+move_org = ""
 na = ""
 never = ""
 next = ""
@@ -41,14 +54,19 @@ page_of = ""
 prev = ""
 previous = ""
 qr = ""
+reject = ""
+rejected = ""
 reset = ""
 read_only = ""
 refresh = ""
 remove = ""
+remove_org = ""
 resend = ""
 retry = ""
+row = ""
 save = ""
 search = ""
+search_group = ""
 select = ""
 select_file = ""
 select_placeholder = ""
@@ -56,10 +74,13 @@ show_more = ""
 language = ""
 language_ko = ""
 language_en = ""
+submit = ""
+submitting = ""
 success = ""
 theme_dark = ""
 theme_light = ""
 theme_toggle = ""
+unassigned = ""
 unknown = ""
 
 [ui.common.badge]
diff --git a/docs/i18n.md b/docs/i18n.md
index 26f0eaba..1361c9cf 100644
--- a/docs/i18n.md
+++ b/docs/i18n.md
@@ -119,14 +119,18 @@ TOML에서는 `[Section]`을 사용하여 계층을 표현합니다.
         ./scripts/sync_userfront_locales.sh
         ```
     *   이 단계가 누락되면 루트 SoT와 UserFront 실제 표시 문구가 어긋날 수 있습니다.
+4.  **React 공통 locale 레이어**:
+    *   React 계열 프런트(`adminfront`, `devfront`, `orgfront`)는 `common/locales/*.toml`을 공통 문구 레이어로 사용합니다.
+    *   공통 key는 `ui.common.*`, `msg.common.*` 범위에만 둡니다.
+    *   각 앱의 `src/locales/*.toml`은 앱 전용 문구를 유지하고, 로딩 시 `common locale -> app locale override` 순서로 merge 합니다.
 3.  **CI 검증 (Verification)**:
     *   **Level 1: 리소스 동기화 검사 (`template` vs `lang`)**
-        *   `template.toml`에 있는 모든 키가 `ko.toml`, `en.toml`에 존재하는지 재귀적으로 검사합니다.
+        *   `locales/*.toml`과 `common/locales/*.toml` 각각에 대해 `template.toml`에 있는 모든 키가 `ko.toml`, `en.toml`에 존재하는지 재귀적으로 검사합니다.
         *   누락 시 빌드 실패.
     *   **Level 2: 코드 사용성 검사 (`code` vs `template`)**
         *   전체 프론트엔드 소스코드(`src/**/*.{ts,tsx}`, `lib/**/*.dart`)를 스캔하여 번역 함수(`t('key')`, `'key'.tr()`)에 사용된 키를 추출합니다.
-        *   **Missing Key**: 코드에는 있는데 `template.toml`에 없는 키를 검출하여 경고 또는 에러를 발생시킵니다.
-        *   **Unused Key**: `template.toml`에는 있는데 코드 어디에서도 쓰이지 않는 키를 리포트하여 정리할 수 있게 합니다.
+        *   **Missing Key**: 코드에는 있는데 해당 레이어의 `template.toml`에 없는 키를 검출하여 경고 또는 에러를 발생시킵니다.
+        *   **Unused Key**: 각 `template.toml`에는 있는데 코드 어디에서도 쓰이지 않는 키를 리포트하여 정리할 수 있게 합니다.
 
 #### 5.2.3 React (Admin/Dev) 구현 가이드
 *   **패키지 설치**:
diff --git a/tools/i18n-scanner/index.js b/tools/i18n-scanner/index.js
index b7d6bdc9..27e8993d 100644
--- a/tools/i18n-scanner/index.js
+++ b/tools/i18n-scanner/index.js
@@ -5,11 +5,27 @@ const fs = require('fs');
 const path = require('path');
 
 const ROOT_DIR = process.cwd();
-const LOCALES_DIR = path.join(ROOT_DIR, 'locales');
-const TEMPLATE_PATH = path.join(LOCALES_DIR, 'template.toml');
-const LANG_FILES = ['ko.toml', 'en.toml'];
 const FAIL_UNUSED = process.argv.includes('--fail-unused');
 
+const LOCALE_SPECS = [
+  {
+    name: 'root',
+    label: 'root locales',
+    dir: path.join(ROOT_DIR, 'locales'),
+    template: 'template.toml',
+    langs: ['ko.toml', 'en.toml'],
+    ownsKey: (key) => !key.startsWith('ui.common.') && !key.startsWith('msg.common.'),
+  },
+  {
+    name: 'common',
+    label: 'common locales',
+    dir: path.join(ROOT_DIR, 'common', 'locales'),
+    template: 'template.toml',
+    langs: ['ko.toml', 'en.toml'],
+    ownsKey: (key) => key.startsWith('ui.common.') || key.startsWith('msg.common.'),
+  },
+];
+
 const SKIP_DIRS = new Set([
   '.git',
   'node_modules',
@@ -78,7 +94,6 @@ function parseTomlKeys(filePath) {
       continue;
     }
 
-    // Strip quotes if present
     if (key.startsWith('"') && key.endsWith('"')) {
       key = key.slice(1, -1);
     }
@@ -138,6 +153,23 @@ function collectCodeKeys() {
   return keys;
 }
 
+function shouldIgnoreCodeKey(key) {
+  return (
+    key.includes('.msg.') ||
+    key.includes('.ui.') ||
+    key.includes('.err.') ||
+    key.includes('.test.') ||
+    key.includes('.non.') ||
+    key.startsWith('ui.admin.users.list.table.') ||
+    key.startsWith('msg.admin.users.detail.') ||
+    key.startsWith('msg.dev.clients.') ||
+    key.startsWith('ui.admin.users.create.') ||
+    key.startsWith('ui.admin.users.detail.') ||
+    key.startsWith('ui.dev.clients.') ||
+    key.startsWith('ui.dev.session.')
+  );
+}
+
 function difference(aSet, bSet) {
   const result = [];
   for (const item of aSet) {
@@ -158,72 +190,75 @@ function printList(title, items) {
   }
 }
 
-function main() {
-  const errors = [];
-  const warnings = [];
-
-  const templateResult = parseTomlKeys(TEMPLATE_PATH);
+function collectSpecResources(spec) {
+  const templatePath = path.join(spec.dir, spec.template);
+  const templateResult = parseTomlKeys(templatePath);
   if (!templateResult.ok) {
-    errors.push(templateResult.error);
+    return { ok: false, error: templateResult.error };
   }
 
   const langKeyMap = new Map();
-  for (const fileName of LANG_FILES) {
-    const langPath = path.join(LOCALES_DIR, fileName);
+  for (const fileName of spec.langs) {
+    const langPath = path.join(spec.dir, fileName);
     const langResult = parseTomlKeys(langPath);
     if (!langResult.ok) {
-      errors.push(langResult.error);
-      continue;
+      return { ok: false, error: langResult.error };
     }
     langKeyMap.set(fileName, langResult.keys);
   }
 
-  if (errors.length > 0) {
-    console.error('i18n 검증 실패: 필수 리소스 파일을 찾지 못했습니다.');
-    for (const error of errors) {
-      console.error(`- ${error}`);
-    }
-    process.exit(1);
-  }
+  return {
+    ok: true,
+    templateKeys: templateResult.keys,
+    langKeyMap,
+  };
+}
 
-  const templateKeys = templateResult.keys;
-  const rawCodeKeys = Array.from(collectCodeKeys());
-  const codeKeysArray = rawCodeKeys.filter(k => 
-    !k.includes('.msg.') &&
-    !k.includes('.ui.') &&
-    !k.includes('.err.') &&
-    !k.includes('.test.') &&
-    !k.includes('.non.') &&
-    !k.startsWith("ui.admin.users.list.table.") &&
-    !k.startsWith("msg.admin.users.detail.") &&
-    !k.startsWith("msg.common.") &&
-    !k.startsWith("msg.dev.clients.") &&
-    !k.startsWith("ui.admin.users.create.") &&
-    !k.startsWith("ui.admin.users.detail.") &&
-    !k.startsWith("ui.common.") &&
-    !k.startsWith("ui.dev.clients.") &&
-    !k.startsWith("ui.dev.session.")
+function main() {
+  const errors = [];
+  const warnings = [];
+
+  const rawCodeKeys = Array.from(collectCodeKeys()).filter(
+    (key) => !shouldIgnoreCodeKey(key),
   );
-  const codeKeys = new Set(codeKeysArray);
+  const codeKeys = new Set(rawCodeKeys);
 
-  for (const [fileName, langKeys] of langKeyMap.entries()) {
-    const missingInLang = difference(templateKeys, langKeys);
-    if (missingInLang.length > 0) {
-      errors.push(`[Sync Error] ${fileName} 누락 키 ${missingInLang.length}개`);
-      printList(`${fileName}에 없는 키`, missingInLang);
+  for (const spec of LOCALE_SPECS) {
+    const resources = collectSpecResources(spec);
+    if (!resources.ok) {
+      errors.push(resources.error);
+      continue;
     }
-  }
 
-  const missingInTemplate = difference(codeKeys, templateKeys);
-  if (missingInTemplate.length > 0) {
-    errors.push(`[Missing Key] template.toml 누락 키 ${missingInTemplate.length}개`);
-    printList('template.toml에 없는 코드 사용 키', missingInTemplate);
-  }
+    for (const [fileName, langKeys] of resources.langKeyMap.entries()) {
+      const missingInLang = difference(resources.templateKeys, langKeys);
+      if (missingInLang.length > 0) {
+        errors.push(
+          `[Sync Error] ${spec.label} ${fileName} 누락 키 ${missingInLang.length}개`,
+        );
+        printList(`${spec.label} ${fileName}에 없는 키`, missingInLang);
+      }
+    }
 
-  const unusedInTemplate = difference(templateKeys, codeKeys);
-  if (unusedInTemplate.length > 0) {
-    warnings.push(`[Unused Key] template.toml 미사용 키 ${unusedInTemplate.length}개`);
-    printList('코드에서 사용되지 않는 키', unusedInTemplate);
+    const ownedCodeKeys = new Set(
+      rawCodeKeys.filter((key) => spec.ownsKey(key)),
+    );
+
+    const missingInTemplate = difference(ownedCodeKeys, resources.templateKeys);
+    if (missingInTemplate.length > 0) {
+      errors.push(
+        `[Missing Key] ${spec.label} template.toml 누락 키 ${missingInTemplate.length}개`,
+      );
+      printList(`${spec.label} template.toml에 없는 코드 사용 키`, missingInTemplate);
+    }
+
+    const unusedInTemplate = difference(resources.templateKeys, codeKeys);
+    if (unusedInTemplate.length > 0) {
+      warnings.push(
+        `[Unused Key] ${spec.label} template.toml 미사용 키 ${unusedInTemplate.length}개`,
+      );
+      printList(`${spec.label} 코드에서 사용되지 않는 키`, unusedInTemplate);
+    }
   }
 
   if (errors.length > 0) {
diff --git a/tools/i18n-scanner/report.js b/tools/i18n-scanner/report.js
index ace4b1a2..190b451e 100644
--- a/tools/i18n-scanner/report.js
+++ b/tools/i18n-scanner/report.js
@@ -5,9 +5,25 @@ const fs = require('fs');
 const path = require('path');
 
 const ROOT_DIR = process.cwd();
-const LOCALES_DIR = path.join(ROOT_DIR, 'locales');
-const TEMPLATE_PATH = path.join(LOCALES_DIR, 'template.toml');
-const LANG_FILES = ['ko.toml', 'en.toml'];
+
+const LOCALE_SPECS = [
+  {
+    name: 'root',
+    label: 'root locales',
+    dir: path.join(ROOT_DIR, 'locales'),
+    template: 'template.toml',
+    langs: ['ko.toml', 'en.toml'],
+    ownsKey: (key) => !key.startsWith('ui.common.') && !key.startsWith('msg.common.'),
+  },
+  {
+    name: 'common',
+    label: 'common locales',
+    dir: path.join(ROOT_DIR, 'common', 'locales'),
+    template: 'template.toml',
+    langs: ['ko.toml', 'en.toml'],
+    ownsKey: (key) => key.startsWith('ui.common.') || key.startsWith('msg.common.'),
+  },
+];
 
 const SKIP_DIRS = new Set([
   '.git',
@@ -81,7 +97,6 @@ function parseTomlKeys(filePath) {
       continue;
     }
 
-    // Strip quotes if present
     if (key.startsWith('"') && key.endsWith('"')) {
       key = key.slice(1, -1);
     }
@@ -141,22 +156,20 @@ function collectCodeKeys() {
   return keys;
 }
 
-function filterCodeKeys(rawKeys) {
-  return Array.from(rawKeys).filter((k) =>
-    !k.includes('.msg.') &&
-    !k.includes('.ui.') &&
-    !k.includes('.err.') &&
-    !k.includes('.test.') &&
-    !k.includes('.non.') &&
-    !k.startsWith('ui.admin.users.list.table.') &&
-    !k.startsWith('msg.admin.users.detail.') &&
-    !k.startsWith('msg.common.') &&
-    !k.startsWith('msg.dev.clients.') &&
-    !k.startsWith('ui.admin.users.create.') &&
-    !k.startsWith('ui.admin.users.detail.') &&
-    !k.startsWith('ui.common.') &&
-    !k.startsWith('ui.dev.clients.') &&
-    !k.startsWith('ui.dev.session.')
+function shouldIgnoreCodeKey(key) {
+  return (
+    key.includes('.msg.') ||
+    key.includes('.ui.') ||
+    key.includes('.err.') ||
+    key.includes('.test.') ||
+    key.includes('.non.') ||
+    key.startsWith('ui.admin.users.list.table.') ||
+    key.startsWith('msg.admin.users.detail.') ||
+    key.startsWith('msg.dev.clients.') ||
+    key.startsWith('ui.admin.users.create.') ||
+    key.startsWith('ui.admin.users.detail.') ||
+    key.startsWith('ui.dev.clients.') ||
+    key.startsWith('ui.dev.session.')
   );
 }
 
@@ -170,62 +183,82 @@ function difference(aSet, bSet) {
   return result.sort();
 }
 
+function collectSpecResources(spec) {
+  const templatePath = path.join(spec.dir, spec.template);
+  const templateResult = parseTomlKeys(templatePath);
+  if (!templateResult.ok) {
+    return { ok: false, error: templateResult.error };
+  }
+
+  const langKeyMap = new Map();
+  for (const fileName of spec.langs) {
+    const langPath = path.join(spec.dir, fileName);
+    const langResult = parseTomlKeys(langPath);
+    if (!langResult.ok) {
+      return { ok: false, error: langResult.error };
+    }
+    langKeyMap.set(fileName, langResult.keys);
+  }
+
+  return {
+    ok: true,
+    templateKeys: templateResult.keys,
+    langKeyMap,
+  };
+}
+
 function buildReport() {
   const report = {
     generated_at: new Date().toISOString(),
     errors: [],
     warnings: [],
-    details: {
+    details: {},
+  };
+
+  const rawCodeKeys = Array.from(collectCodeKeys()).filter(
+    (key) => !shouldIgnoreCodeKey(key),
+  );
+  const codeKeys = new Set(rawCodeKeys);
+
+  for (const spec of LOCALE_SPECS) {
+    const resources = collectSpecResources(spec);
+    report.details[spec.name] = {
       missing_in_template: [],
       missing_in_lang: {},
       unused_in_template: [],
-    },
-  };
+    };
 
-  const templateResult = parseTomlKeys(TEMPLATE_PATH);
-  if (!templateResult.ok) {
-    report.errors.push(templateResult.error);
-    return report;
-  }
-
-  const templateKeys = templateResult.keys;
-  const codeKeys = new Set(filterCodeKeys(collectCodeKeys()));
-
-  const langKeyMap = new Map();
-  for (const fileName of LANG_FILES) {
-    const langPath = path.join(LOCALES_DIR, fileName);
-    const langResult = parseTomlKeys(langPath);
-    if (!langResult.ok) {
-      report.errors.push(langResult.error);
+    if (!resources.ok) {
+      report.errors.push(resources.error);
       continue;
     }
-    langKeyMap.set(fileName, langResult.keys);
-  }
 
-  for (const [fileName, langKeys] of langKeyMap.entries()) {
-    const missingInLang = difference(templateKeys, langKeys);
-    if (missingInLang.length > 0) {
-      report.errors.push(
-        `[Sync Error] ${fileName} 누락 키 ${missingInLang.length}개`,
-      );
-      report.details.missing_in_lang[fileName] = missingInLang;
+    for (const [fileName, langKeys] of resources.langKeyMap.entries()) {
+      const missingInLang = difference(resources.templateKeys, langKeys);
+      if (missingInLang.length > 0) {
+        report.errors.push(
+          `[Sync Error] ${spec.label} ${fileName} 누락 키 ${missingInLang.length}개`,
+        );
+        report.details[spec.name].missing_in_lang[fileName] = missingInLang;
+      }
     }
-  }
 
-  const missingInTemplate = difference(codeKeys, templateKeys);
-  if (missingInTemplate.length > 0) {
-    report.errors.push(
-      `[Missing Key] template.toml 누락 키 ${missingInTemplate.length}개`,
-    );
-    report.details.missing_in_template = missingInTemplate;
-  }
+    const ownedCodeKeys = new Set(rawCodeKeys.filter((key) => spec.ownsKey(key)));
+    const missingInTemplate = difference(ownedCodeKeys, resources.templateKeys);
+    if (missingInTemplate.length > 0) {
+      report.errors.push(
+        `[Missing Key] ${spec.label} template.toml 누락 키 ${missingInTemplate.length}개`,
+      );
+      report.details[spec.name].missing_in_template = missingInTemplate;
+    }
 
-  const unusedInTemplate = difference(templateKeys, codeKeys);
-  if (unusedInTemplate.length > 0) {
-    report.warnings.push(
-      `[Unused Key] template.toml 미사용 키 ${unusedInTemplate.length}개`,
-    );
-    report.details.unused_in_template = unusedInTemplate;
+    const unusedInTemplate = difference(resources.templateKeys, codeKeys);
+    if (unusedInTemplate.length > 0) {
+      report.warnings.push(
+        `[Unused Key] ${spec.label} template.toml 미사용 키 ${unusedInTemplate.length}개`,
+      );
+      report.details[spec.name].unused_in_template = unusedInTemplate;
+    }
   }
 
   return report;
@@ -258,8 +291,12 @@ function main() {
   fs.writeFileSync(summaryPath, lines.join('\n'));
 
   if (report.errors.length > 0) {
+    console.error('❌ i18n report generated with errors');
     process.exit(1);
   }
+
+  console.log(`✅ i18n report written to ${outPath}`);
+  console.log(`✅ i18n summary written to ${summaryPath}`);
 }
 
 main();