diff --git a/src/features/production/types.ts b/src/features/production/types.ts
index b1e6e52..be4a0d2 100644
--- a/src/features/production/types.ts
+++ b/src/features/production/types.ts
@@ -11,6 +11,7 @@ export type ProductionIssueCode =
     | 'identity_unlocked'
     | 'missing_prompt'
     | 'missing_keyframe'
+    | 'stale_keyframe'
 
 /** 就绪检查中的具体阻塞原因；部分参考图问题会附带主体引用。 */
 export interface ProductionIssue {
@@ -43,6 +44,8 @@ export interface KeyframeReadinessItem extends PromptReadinessItem {
     episodeNo: number
     beatNo: number
     primaryKeyframeId?: string | null
+    /** 当前主首帧已基于旧 SubjectForm Primary，需要重新生成。 */
+    primaryKeyframeStale?: boolean
 }
 
 /** 镜头首帧项目级就绪汇总。 */
@@ -51,6 +54,7 @@ export interface KeyframeReadiness extends PromptReadiness {
     missingIdentity: number
     missingIdentityAnchor: number
     identityUnlocked: number
+    stalePrimaryKeyframe: number
     items: KeyframeReadinessItem[]
 }
 
@@ -73,6 +77,7 @@ export interface VideoReadiness {
     blocked: number
     missingPrompt: number
     missingKeyframe: number
+    staleKeyframe: number
     missingReference: number
     items: VideoReadinessItem[]
 }