@@ -0,0 +1,14 @@
+---
+'@object-ui/plugin-chatbot': minor
+'@object-ui/i18n': minor
+---
+
+The chat build panel reads cloud's post-apply verification loop, and an unknown build phase no longer reads as "Building" (objectui#11988, the receiver objectstack-ai/cloud#2172's ruling A orders).
+
+After `apply_blueprint` finishes, cloud's agent loop reports its verification hops on a second `data-build-progress` part with the id `build-verify`, beside the build tree. A hop is `{ phase: 'verify', hop, tool }` and the exit is `{ phase: 'done' }`. The receiver used to take the last `data-build-progress` part whatever its id, and turned every phase other than `data` and `done` into `structure`. So the first verification hop replaced the finished tree with "Building your app…".
+
+- **The tree and the verification part are read apart, by part id.** The `build-verify` part never displaces the tree, whichever order the two parts arrive in. A message that carries only the tree maps and renders exactly as before.
+- **The build panel shows a verification line under the tree.** It reads "Checking the change… step N" while a hop runs, with the hop's tool name as its tooltip, and "Checked the change" once the `done` frame arrives. A `build-verify` part on a message that has no build tree is not drawn as a tree.
+- **Phases are read against the spec's vocabulary.** The receiver's phase table and frame type are typed by `@objectstack/spec/ai`'s own `BuildProgressPhase` and `BUILD_PROGRESS_FRAME_TYPE`, so a phase the spec adds or drops fails the type check here instead of drifting. The spec's runtime module is not imported, because it would put its whole AI schema module on the console's first load. A phase outside the vocabulary, or a frame without one, is now `unknown` and shows as a warning line ("Unknown build phase") on the tree header or on the verification line. It is no longer coerced to `structure`.
+- **Type change.** `ChatBuildProgress.phase`, reached through `ChatMessage['buildProgress']`, widens from `'structure' | 'data' | 'done'` to `'structure' | 'data' | 'verify' | 'done' | 'unknown'`: the spec's phase vocabulary plus `'unknown'`, held equal to the spec's union by a compile-time test. `ChatBuildProgress` also gains an optional `verify` member, `{ phase, hop?, tool? }`. The published typings name no new `@objectstack/spec` symbol, so the package's spec range is unchanged.
+- **New language-pack keys, in all ten packs:** `chatbot.build.verifying`, `chatbot.build.verifyStep`, `chatbot.build.verified` and `chatbot.build.unknownPhase`.
@@ -3584,6 +3584,10 @@ const ar = {
         seed: "بيانات تجريبية",
       },
       moreArtifacts: "+{{n}} أخرى",
+      verifying: "جارٍ التحقق من التغيير…",
+      verifyStep: "الخطوة {{n}}",
+      verified: "تم التحقق من التغيير",
+      unknownPhase: "مرحلة إنشاء غير معروفة",
     },
   },
   chatbotError: {
 
@@ -3317,6 +3317,10 @@ const de = {
         seed: "Beispieldaten",
       },
       moreArtifacts: "+{{n}} weitere",
+      verifying: "Änderung wird geprüft…",
+      verifyStep: "Schritt {{n}}",
+      verified: "Änderung geprüft",
+      unknownPhase: "Unbekannte Build-Phase",
     },
   },
   chatbotError: {
 
@@ -3847,6 +3847,9 @@ const en = {
   //                   `building`/`built` interpolate `appFallback` when the
   //                   build has no app label, so each pack must keep BOTH
   //                   frames in the one case/gender that noun phrase is in.
+  //                   `verifying`/`verifyStep`/`verified` are the post-apply
+  //                   verification line and `unknownPhase` the warning for a
+  //                   phase outside the spec's vocabulary (objectui#11988).
   //   `plan.*`      — the "N objects · N views · N dashboards" strip. Plural
   //                   FAMILIES: one slot per CLDR category the pack's language
   //                   selects (objectui#11432), plus the base key for a call
@@ -3935,6 +3938,10 @@ const en = {
         seed: 'Sample data',
       },
       moreArtifacts: '+{{n}} more',
+      verifying: 'Checking the change…',
+      verifyStep: 'step {{n}}',
+      verified: 'Checked the change',
+      unknownPhase: 'Unknown build phase',
     },
   },
   chatbotError: {
 
@@ -3382,6 +3382,10 @@ const es = {
         seed: "Datos de ejemplo",
       },
       moreArtifacts: "+{{n}} más",
+      verifying: "Comprobando el cambio…",
+      verifyStep: "paso {{n}}",
+      verified: "Cambio comprobado",
+      unknownPhase: "Fase de creación desconocida",
     },
   },
   chatbotError: {
 
@@ -3379,6 +3379,10 @@ const fr = {
         seed: "Données d’exemple",
       },
       moreArtifacts: "+{{n}} autres",
+      verifying: "Vérification de la modification…",
+      verifyStep: "étape {{n}}",
+      verified: "Modification vérifiée",
+      unknownPhase: "Phase de création inconnue",
     },
   },
   chatbotError: {
 
@@ -3319,6 +3319,10 @@ const ja = {
         seed: "サンプルデータ",
       },
       moreArtifacts: "他 {{n}} 件",
+      verifying: "変更を確認しています…",
+      verifyStep: "ステップ {{n}}",
+      verified: "変更を確認しました",
+      unknownPhase: "不明なビルドフェーズ",
     },
   },
   chatbotError: {
 
@@ -3316,6 +3316,10 @@ const ko = {
         seed: "샘플 데이터",
       },
       moreArtifacts: "외 {{n}}개",
+      verifying: "변경 사항 확인 중…",
+      verifyStep: "{{n}}단계",
+      verified: "변경 사항 확인 완료",
+      unknownPhase: "알 수 없는 빌드 단계",
     },
   },
   chatbotError: {
 
@@ -3377,6 +3377,10 @@ const pt = {
         seed: "Dados de exemplo",
       },
       moreArtifacts: "+{{n}} mais",
+      verifying: "Verificando a alteração…",
+      verifyStep: "etapa {{n}}",
+      verified: "Alteração verificada",
+      unknownPhase: "Fase de criação desconhecida",
     },
   },
   chatbotError: {
 
@@ -3463,6 +3463,10 @@ const ru = {
         seed: "Демоданные",
       },
       moreArtifacts: "ещё {{n}}",
+      verifying: "Проверка изменения…",
+      verifyStep: "шаг {{n}}",
+      verified: "Изменение проверено",
+      unknownPhase: "Неизвестный этап сборки",
     },
   },
   chatbotError: {