diff --git a/frontend/src/pages/catalog/DraftDialog.tsx b/frontend/src/pages/catalog/DraftDialog.tsx
index ab588758..c9fba7fc 100644
--- a/frontend/src/pages/catalog/DraftDialog.tsx
+++ b/frontend/src/pages/catalog/DraftDialog.tsx
@@ -36,13 +36,29 @@ interface Outcome {
   model: string | null
   failure: string | null
   stopped: boolean
+  /** 这一次勾了「用模型起草」 */
+  modelAsked: boolean
+  /** 模型给了可用内容（model_items > 0）的表有几张；服务端没给 model_items（老服务端）时 modelItemsKnown 为假 */
+  modelItems: number
+  modelItemsKnown: boolean
 }
 
-const fresh = (total: number): Outcome => ({
+const fresh = (total: number, modelAsked = false): Outcome => ({
   done: 0, total, added: 0, updated: 0, removed: 0, tableErrors: [], modelErrors: [], modelSkipped: null, model: null,
-  failure: null, stopped: false,
+  failure: null, stopped: false, modelAsked, modelItems: 0, modelItemsKnown: false,
 })
 
+/**
+ * 一项都没写进去时怎么说。「没有变化」只在确实是「起草出了内容、和现有目录一致」时说：有表没起草、模型在某些表上
+ * 没给出内容（model_error），或者勾了用模型、却没有一张表拿到模型的可用内容（模型整体用不了、model_items 都是 0），
+ * 都说「目录没有更新」，原因写在下面
+ */
+function nothingWrittenText(out: Outcome): string {
+  const failed = out.modelErrors.length > 0 || out.tableErrors.length > 0
+  const modelEmpty = out.modelAsked && (!!out.modelSkipped || (out.modelItemsKnown && out.modelItems === 0))
+  return failed || modelEmpty ? CT.draftNothingWritten : CT.draftNoChange
+}
+
 export function DraftDialog({ sourceId, rows, visible, selected, filtered, onClose, onDrafted }: {
   sourceId: string
   /** 全部表（服务端的顺序：使用次数多的在前） */
@@ -81,7 +97,7 @@ export function DraftDialog({ sourceId, rows, visible, selected, filtered, onClo
     stopRef.current = false
     setStopping(false)
     setPhase('running')
-    const acc = fresh(tables.length)
+    const acc = fresh(tables.length, useModel)
     setOut({ ...acc })
     const touched: string[] = []
     let withModel = useModel
@@ -96,6 +112,8 @@ export function DraftDialog({ sourceId, rows, visible, selected, filtered, onClo
         acc.removed += r.total.removed
         acc.tableErrors.push(...r.tables.filter((t) => t.error))
         acc.modelErrors.push(...r.tables.filter((t) => !t.error && t.model_error))
+        acc.modelItems += r.tables.filter((t) => !t.error && (t.model_items ?? 0) > 0).length
+        if (r.tables.some((t) => t.model_items !== undefined)) acc.modelItemsKnown = true
         if (r.model) acc.model = r.model
         // 模型整体用不了（没配置、已停用……）：后面的批次不再请模型，免得每批都撞一次同样的错
         if (withModel && r.model_error && !r.model_used) { acc.modelSkipped = r.model_error; withModel = false }
@@ -181,7 +199,7 @@ export function DraftDialog({ sourceId, rows, visible, selected, filtered, onClo
             </div>
             <p className="tnum text-sm" data-draft-summary="">
               {out.added + out.updated + out.removed === 0 && phase === 'done' && !out.failure
-                ? CT.draftNoChange
+                ? nothingWrittenText(out)
                 : CT.draftSummary(out.added, out.updated, out.removed)}
             </p>
             {out.model && <p className="text-2xs text-faint">{CT.draftModelUsed(out.model)}</p>}
diff --git a/scripts/check-catalog.mjs b/scripts/check-catalog.mjs
index 1c2960dd..1b68bc84 100644
--- a/scripts/check-catalog.mjs
+++ b/scripts/check-catalog.mjs
@@ -761,6 +761,33 @@ await section('数据目录 · 起草', async () => {
   check('……写出用的是哪个模型', (await draftBox(page).innerText()).includes('模型：check-model'))
   await page.locator('[data-draft-close]').click()
 
+  // 一项都没写进去：只有「模型给了内容、只是和现有目录一致」才说「没有变化」，模型没给出内容要说「目录没有更新」
+  const emptyReply = ({ items, modelError }) => (route, ctx) => json({
+    tables: ctx.body.tables.map((n) => ({ table_name: n, added: 0, updated: 0, removed: 0, version: 1, error: null,
+      model_error: modelError, model_items: items })),
+    total: { added: 0, updated: 0, removed: 0 }, model_used: true, model: 'check-model', model_error: null,
+  })(route)
+  const draftOnce = async (reply) => {
+    replies.draft.push(reply, reply)
+    await page.locator('[data-catalog-draft]').first().click()
+    await draftBox(page).locator('[data-draft-model] input').check()
+    await page.locator('[data-draft-start]').click()
+    await until(async () => (await draftBox(page).getAttribute('data-draft-dialog')) === 'done', 8000)
+    const summary = await draftBox(page).locator('[data-draft-summary]').innerText()
+    const notice = await draftBox(page).locator('[data-draft-table-model-errors]').innerText().catch(() => '')
+    await page.locator('[data-draft-close]').click()
+    return { summary, notice }
+  }
+  const noContent = await draftOnce(emptyReply({ items: null, modelError: '模型没有给出这张表的可用内容' }))
+  check('模型没给出内容（每张表记 model_error）：不说「没有变化」，说「目录没有更新」并列出原因',
+    noContent.summary === '目录没有更新：模型没有给出可用的内容，原因见下方' && noContent.notice.includes('模型没有给出这张表的可用内容'),
+    JSON.stringify(noContent))
+  const zeroItems = await draftOnce(emptyReply({ items: 0, modelError: null }))
+  check('……模型一项可用内容都没给（model_items 都是 0）：同样不说「没有变化」', zeroItems.summary === '目录没有更新：模型没有给出可用的内容，原因见下方',
+    JSON.stringify(zeroItems))
+  const same = await draftOnce(emptyReply({ items: 3, modelError: null }))
+  check('……模型给了内容、只是和现有目录一致：才说「没有变化」', same.summary === '没有变化：起草出的内容与现有目录一致', JSON.stringify(same))
+
   // 中途停止：当前这一批做完后不再发下一批
   replies.draft.push(async (route, ctx) => { await sleep(900); return draftReply(state)(route, ctx) })
   await page.locator('[data-catalog-draft]').first().click()