diff --git a/src/features/subject-images/useSubjectImages.ts b/src/features/subject-images/useSubjectImages.ts
index 9bba2ad..e4e5877 100644
--- a/src/features/subject-images/useSubjectImages.ts
+++ b/src/features/subject-images/useSubjectImages.ts
@@ -5,8 +5,8 @@ import { useProjectContext } from '../projects/context'
 import { getOperation, runOperation } from '../workflows/operations'
 import { workflowCheckpoints } from '../workflows/selectors'
 import { subjectImagesApi } from './api'
-import { getImageSession, hasRunningImages } from './model'
-import type { GenerateFormImageInput } from './types'
+import { getImageSession, hasRunningImages, isPrimaryIdentityStale } from './model'
+import type { GenerateFormImageInput, SubjectFormAsset } from './types'
 
 /** 形态图库统一读取数据库记录并管理单图／批量长请求，不调用生产流程。 */
 export function useSubjectImages() {
@@ -37,6 +37,7 @@ export function useSubjectImages() {
         }
     })
     const forms = computed(() => query.data.value ?? [])
+    const staleForms = computed(() => forms.value.filter(form => isPrimaryIdentityStale(form)))
     const operation = computed(() => getOperation(id.value))
     const session = computed(() => getImageSession(id.value))
     const running = computed(() => forms.value.some(form => hasRunningImages(form.images)))
@@ -87,9 +88,59 @@ export function useSubjectImages() {
         await query.refresh()
     }
 
+    /**
+     * 只为 Identity Anchor 已变化的 Character Form 重新生成候选图。
+     * 新图继续保持候选状态，避免批量任务替用户静默切换 Primary。
+     */
+    async function generateStale() {
+        if (blocked.value || !batchValid.value || !staleForms.value.length) return
+        const projectId = id.value
+        const targets = [...staleForms.value]
+        const receipt = getImageSession(projectId)
+        receipt.receipt = null
+
+        await runOperation(projectId, '刷新过期人物形态图', async () => {
+            const results = await runWithConcurrency(targets, concurrency.value, async form => {
+                try {
+                    const image = await subjectImagesApi.generate(form.id, {
+                        provider: 'seedream',
+                        setPrimary: false
+                    })
+                    if (!image || image.subjectFormId !== form.id || image.status !== 'completed' || !image.imageUrl) {
+                        throw new Error(image?.error || '接口未返回已完成的候选图')
+                    }
+                    return { subjectFormId: form.id, success: true as const }
+                } catch (error) {
+                    return {
+                        subjectFormId: form.id,
+                        success: false as const,
+                        error: error instanceof Error ? error.message : String(error)
+                    }
+                }
+            })
+            const failures = results
+                .filter(item => !item.success)
+                .map(item => ({ subjectFormId: item.subjectFormId, error: item.error }))
+
+            receipt.receipt = {
+                title: '刷新过期人物形态图',
+                result: {
+                    total: forms.value.length,
+                    targetCount: targets.length,
+                    generated: results.filter(item => item.success).length,
+                    skipped: forms.value.length - targets.length,
+                    failed: failures.length,
+                    failures
+                }
+            }
+        })
+        await query.refresh()
+    }
+
     return {
         id,
         forms,
+        staleForms,
         query,
         operation,
         session,
@@ -99,6 +150,31 @@ export function useSubjectImages() {
         running,
         batchValid,
         generate,
-        generateProject
+        generateProject,
+        generateStale
     }
 }
+
+/** 使用固定并发数执行需要付费的单形态生图请求。 */
+async function runWithConcurrency<TResult>(
+    items: SubjectFormAsset[],
+    concurrency: number,
+    handler: (item: SubjectFormAsset) => Promise<TResult>
+): Promise<TResult[]> {
+    const results: TResult[] = []
+    let currentIndex = 0
+
+    async function worker() {
+        while (currentIndex < items.length) {
+            const index = currentIndex
+            currentIndex += 1
+            const item = items[index]
+            if (!item) continue
+            results[index] = await handler(item)
+        }
+    }
+
+    const workers = Array.from({ length: Math.min(concurrency, items.length) }, () => worker())
+    await Promise.all(workers)
+    return results
+}