diff --git a/packages/editor/src/layouts/history-list/HistoryListPanel.vue b/packages/editor/src/layouts/history-list/HistoryListPanel.vue
index 0a703a27..38c60aa5 100644
--- a/packages/editor/src/layouts/history-list/HistoryListPanel.vue
+++ b/packages/editor/src/layouts/history-list/HistoryListPanel.vue
@@ -135,6 +135,7 @@ import type { FormState } from '@tmagic/form';
 import MIcon from '@editor/components/Icon.vue';
 import { useServices } from '@editor/hooks/use-services';
 import type {
+  BaseStepValue,
   CodeBlockStepValue,
   DataSourceStepValue,
   DiffDialogPayload,
@@ -143,15 +144,7 @@ import type {
 } from '@editor/type';
 
 import BucketTab from './BucketTab.vue';
-import {
-  describeCodeBlockGroup,
-  describeCodeBlockStep,
-  describeDataSourceGroup,
-  describeDataSourceStep,
-  isCodeBlockStepRevertable,
-  isDataSourceStepRevertable,
-  useHistoryList,
-} from './composables';
+import { describeStep, isSingleDiffStepRevertable, useHistoryList } from './composables';
 import HistoryDiffDialog from './HistoryDiffDialog.vue';
 import PageTab from './PageTab.vue';
 
@@ -223,34 +216,28 @@ const {
  */
 const pageMarker = computed(() => historyService.getPageMarker());
 
-/** 数据源 step 仅 update（前后 schema 都存在）时可查看差异。 */
-const isDataSourceStepDiffable = (step: DataSourceStepValue) =>
-  Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema);
-
 /** 代码块 step 仅 update（前后 content 都存在）时可查看差异。 */
-const isCodeBlockStepDiffable = (step: CodeBlockStepValue) =>
-  Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema);
+const isStepDiffable = (step: BaseStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema);
 
 /**
  * 数据源 / 代码块两类 bucket 历史的整体渲染配置：把 title / prefix 与各自的描述、
  * 可差异、可回滚判定收敛为单一对象整体注入 BucketTab，组件内部按需读取。
  */
+// 数据源/代码块不做相邻合并，每组恒为单步，省略 describeGroup，由 toRowGroup 回退到 describeStep。
 const dataSourceConfig: HistoryBucketConfig<DataSourceStepValue> = {
   title: '数据源',
   prefix: 'ds',
-  describeGroup: describeDataSourceGroup,
-  describeStep: describeDataSourceStep,
-  isStepDiffable: isDataSourceStepDiffable,
-  isStepRevertable: isDataSourceStepRevertable,
+  describeStep: (step: DataSourceStepValue): string => describeStep(step, (schema) => schema?.title, '数据源'),
+  isStepDiffable,
+  isStepRevertable: isSingleDiffStepRevertable,
 };
 
 const codeBlockConfig: HistoryBucketConfig<CodeBlockStepValue> = {
   title: '代码块',
   prefix: 'cb',
-  describeGroup: describeCodeBlockGroup,
-  describeStep: describeCodeBlockStep,
-  isStepDiffable: isCodeBlockStepDiffable,
-  isStepRevertable: isCodeBlockStepRevertable,
+  describeStep: (step: CodeBlockStepValue): string => describeStep(step, (content) => content?.name, '代码块'),
+  isStepDiffable,
+  isStepRevertable: isSingleDiffStepRevertable,
 };
 
 /** 把"目标 step 索引"翻译成"目标 cursor"（已应用步骤数量）。 */
diff --git a/packages/editor/src/layouts/history-list/composables.ts b/packages/editor/src/layouts/history-list/composables.ts
index 318e3ba1..ebc0e07b 100644
--- a/packages/editor/src/layouts/history-list/composables.ts
+++ b/packages/editor/src/layouts/history-list/composables.ts
@@ -5,10 +5,6 @@ import { datetimeFormatter } from '@tmagic/form';
 import { useServices } from '@editor/hooks/use-services';
 import type {
   BaseStepValue,
-  CodeBlockHistoryGroup,
-  CodeBlockStepValue,
-  DataSourceHistoryGroup,
-  DataSourceStepValue,
   HistoryOpSource,
   HistoryOpType,
   HistoryRowDescriptor,
@@ -227,12 +223,14 @@ export const toRowGroup = <T extends BaseStepValue = BaseStepValue>(
 ): HistoryRowGroup => {
   const { describeGroup, describeStep, isStepDiffable, isStepRevertable } = descriptor;
   const timestamp = groupTimestamp(group);
+  // 无 describeGroup 时回退到组内最后一步的 describeStep：数据源/代码块不做相邻合并，每组恒为单步，二者等价。
+  const lastStep = group.steps[group.steps.length - 1]?.step;
   return {
     key,
     applied: group.applied,
     isCurrent: Boolean(group.isCurrent),
     opType: group.opType,
-    desc: describeGroup(group),
+    desc: describeGroup ? describeGroup(group) : describeStep(lastStep),
     source: groupSource(group),
     time: formatHistoryTime(timestamp),
     timeTitle: formatHistoryFullTime(timestamp),
@@ -273,30 +271,43 @@ const pickLastDescription = (descs: (string | undefined)[]): string | undefined
   return undefined;
 };
 
-export const describePageStep = (step: StepValue) => {
+/**
+ * 页面 / 数据源 / 代码块三类历史共用的单步描述核心。
+ * 各类型只在「取展示名」与「实体单位名」上有差异，通过参数注入，文案模板完全一致：
+ * - 新增 / 删除：单实体展示「label」，多实体（仅页面可能出现）退化为「N 个X」；
+ * - 修改：展示「label · propPath」，无 diff 时兜底「X」，多实体退化为「N 个X」。
+ * 操作类型（新增 / 删除 / 修改）已由列表行的 op 徽标单独展示，故描述文案不再重复动词。
+ * 展示 id 统一取 schema.id；调用方显式传入的 historyDescription 永远优先。
+ */
+export const describeStep = <T>(
+  step: BaseStepValue<T>,
+  getLabel: (_schema?: T) => string | number | undefined,
+  unit: string,
+): string => {
   if (step.historyDescription) return step.historyDescription;
-  const { opType } = step;
   const items = step.diff ?? [];
-  if (opType === 'add') {
-    const count = items.length;
+  const label = (schema?: T) => labelWithId(getLabel(schema), (schema as { id?: string | number } | undefined)?.id);
+
+  if (step.opType === 'add') {
     const node = items[0]?.newSchema;
-    return `新增 ${count} 个节点${count === 1 && node ? `（${labelWithId(nameOf(node), node.id)}）` : ''}`;
+    return items.length === 1 && node ? label(node) : `${items.length} 个${unit}`;
   }
-  if (opType === 'remove') {
-    const count = items.length;
+  if (step.opType === 'remove') {
     const node = items[0]?.oldSchema;
-    return `删除 ${count} 个节点${count === 1 && node ? `（${labelWithId(nameOf(node), node.id)}）` : ''}`;
+    return items.length === 1 && node ? label(node) : `${items.length} 个${unit}`;
   }
-  if (!items.length) return '修改节点';
+  if (!items.length) return unit;
   if (items.length === 1) {
-    const { newSchema, changeRecords } = items[0];
-    const propPath = changeRecords?.[0]?.propPath;
-    const target = labelWithId(nameOf(newSchema), newSchema?.id);
-    return `修改 ${target}${propPath ? ` · ${propPath}` : ''}`;
+    const { newSchema, oldSchema, changeRecords } = items[0];
+    const propPath = changeRecords?.map((changeRecord) => changeRecord.propPath).join(',');
+    const target = label(newSchema ?? oldSchema);
+    return propPath ? `${target} · ${propPath}` : target;
   }
-  return `修改 ${items.length} 个节点`;
+  return `${items.length} 个${unit}`;
 };
 
+export const describePageStep = (step: StepValue): string => describeStep(step, (node) => nameOf(node), '节点');
+
 /**
  * 合并组的展示文案：
  * - 若组内任一步显式提供了 historyDescription：取最后一条非空 historyDescription（最近一次的描述更准确）；
@@ -307,68 +318,8 @@ export const describePageGroup = (group: PageHistoryGroup) => {
   const lastDesc = pickLastDescription(group.steps.map((s) => s.step.historyDescription));
   if (lastDesc) return lastDesc;
   if (group.steps.length === 1) return describePageStep(group.steps[0].step);
-  const paths = new Set<string>();
-  group.steps.forEach((s) => {
-    s.step.diff?.[0]?.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
-  });
-  const pathList = Array.from(paths).slice(0, 3).join(', ');
-  const target = labelWithId(
-    group.targetName ?? (group.targetId !== undefined ? `${group.targetId}` : '节点'),
-    group.targetId,
-  );
-  return pathList ? `修改 ${target} · ${pathList}${paths.size > 3 ? '…' : ''}` : `修改 ${target}`;
-};
 
-export const describeDataSourceStep = (step: DataSourceStepValue) => {
-  if (step.historyDescription) return step.historyDescription;
-  const { oldSchema: oldSchema, newSchema: newSchema, changeRecords } = step.diff?.[0] ?? {};
-  if (!oldSchema && newSchema) return `创建 ${labelWithId(newSchema.title, newSchema.id ?? step.id)}`;
-  if (!newSchema && oldSchema) return `删除 ${labelWithId(oldSchema.title, oldSchema.id ?? step.id)}`;
-  const propPath = changeRecords?.[0]?.propPath;
-  const title = labelWithId(newSchema?.title || oldSchema?.title, step.id);
-  return propPath ? `修改 ${title} · ${propPath}` : `修改 ${title}`;
-};
-
-export const describeDataSourceGroup = (group: DataSourceHistoryGroup) => {
-  const lastDesc = pickLastDescription(group.steps.map((s) => s.step.historyDescription));
-  if (lastDesc) return lastDesc;
-  if (group.steps.length === 1) return describeDataSourceStep(group.steps[0].step);
-  const paths = new Set<string>();
-  group.steps.forEach((s) => {
-    s.step.diff?.[0]?.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
-  });
-  const pathList = Array.from(paths).slice(0, 3).join(', ');
-  const rawTitle =
-    group.steps[group.steps.length - 1].step.diff?.[0]?.newSchema?.title ||
-    group.steps[0].step.diff?.[0]?.oldSchema?.title;
-  const target = labelWithId(rawTitle, group.id);
-  return pathList ? `修改 ${target} · ${pathList}${paths.size > 3 ? '…' : ''}` : `修改 ${target}`;
-};
-
-export const describeCodeBlockStep = (step: CodeBlockStepValue) => {
-  if (step.historyDescription) return step.historyDescription;
-  const { oldSchema: oldContent, newSchema: newContent, changeRecords } = step.diff?.[0] ?? {};
-  if (!oldContent && newContent) return `创建 ${labelWithId(newContent.name, newContent.id ?? step.id)}`;
-  if (!newContent && oldContent) return `删除 ${labelWithId(oldContent.name, oldContent.id ?? step.id)}`;
-  const propPath = changeRecords?.[0]?.propPath;
-  const title = labelWithId(newContent?.name || oldContent?.name, step.id);
-  return propPath ? `修改 ${title} · ${propPath}` : `修改 ${title}`;
-};
-
-export const describeCodeBlockGroup = (group: CodeBlockHistoryGroup) => {
-  const lastDesc = pickLastDescription(group.steps.map((s) => s.step.historyDescription));
-  if (lastDesc) return lastDesc;
-  if (group.steps.length === 1) return describeCodeBlockStep(group.steps[0].step);
-  const paths = new Set<string>();
-  group.steps.forEach((s) => {
-    s.step.diff?.[0]?.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
-  });
-  const pathList = Array.from(paths).slice(0, 3).join(', ');
-  const rawName =
-    group.steps[group.steps.length - 1].step.diff?.[0]?.newSchema?.name ||
-    group.steps[0].step.diff?.[0]?.oldSchema?.name;
-  const target = labelWithId(rawName, group.id);
-  return pathList ? `修改 ${target} · ${pathList}${paths.size > 3 ? '…' : ''}` : `修改 ${target}`;
+  return labelWithId(group.targetName ?? (group.targetId !== undefined ? `${group.targetId}` : '节点'), group.targetId);
 };
 
 /**
@@ -385,22 +336,11 @@ export const isPageStepRevertable = (step: StepValue): boolean => {
 };
 
 /**
- * 数据源 step 是否支持「回滚」：
+ * 单 diff 项历史（数据源 / 代码块）是否支持「回滚」：
  * - 新增（无 oldSchema）/ 删除（无 newSchema）：不依赖 changeRecords，始终可回滚；
- * - 更新（前后 schema 都存在）：必须有 changeRecords 才支持局部反向 patch，否则不支持回滚。
+ * - 更新（前后内容都存在）：必须有 changeRecords 才支持局部反向 patch，否则不支持回滚。
  */
-export const isDataSourceStepRevertable = (step: DataSourceStepValue): boolean => {
-  const item = step.diff?.[0];
-  if (!item?.oldSchema || !item?.newSchema) return true;
-  return Boolean(item.changeRecords?.length);
-};
-
-/**
- * 代码块 step 是否支持「回滚」：
- * - 新增（无 oldSchema）/ 删除（无 newSchema）：不依赖 changeRecords，始终可回滚；
- * - 更新（前后 content 都存在）：必须有 changeRecords 才支持局部反向 patch，否则不支持回滚。
- */
-export const isCodeBlockStepRevertable = (step: CodeBlockStepValue): boolean => {
+export const isSingleDiffStepRevertable = (step: BaseStepValue): boolean => {
   const item = step.diff?.[0];
   if (!item?.oldSchema || !item?.newSchema) return true;
   return Boolean(item.changeRecords?.length);
diff --git a/packages/editor/src/services/history.ts b/packages/editor/src/services/history.ts
index abb465ff..1d2f3e25 100644
--- a/packages/editor/src/services/history.ts
+++ b/packages/editor/src/services/history.ts
@@ -23,9 +23,7 @@ import type { ChangeRecord } from '@tmagic/form';
 import { guid } from '@tmagic/utils';
 
 import type {
-  CodeBlockHistoryGroup,
   CodeBlockStepValue,
-  DataSourceHistoryGroup,
   DataSourceStepValue,
   HistoryOpSource,
   HistoryPersistOptions,
@@ -33,6 +31,7 @@ import type {
   PageHistoryGroup,
   PageHistoryStepEntry,
   PersistedHistoryState,
+  StackHistoryGroup,
   StepValue,
 } from '@editor/type';
 import { getEditorConfig } from '@editor/utils/config';
@@ -527,8 +526,8 @@ class History extends BaseService {
    * 取出全部代码块的历史栈，按 codeBlockId 分桶展示。
    * 同一栈内每条操作记录独立成组，不做相邻 update 合并。
    */
-  public getCodeBlockHistoryGroups(): CodeBlockHistoryGroup[] {
-    const groups: CodeBlockHistoryGroup[] = [];
+  public getCodeBlockHistoryGroups(): StackHistoryGroup<CodeBlockStepValue, 'code-block'>[] {
+    const groups: StackHistoryGroup<CodeBlockStepValue, 'code-block'>[] = [];
     Object.entries(this.state.codeBlockState).forEach(([id, undoRedo]) => {
       if (!undoRedo) return;
       const list = undoRedo.getElementList();
@@ -619,8 +618,8 @@ class History extends BaseService {
   /**
    * 取出全部数据源的历史栈，按 dataSourceId 分桶展示。同上，每条操作独立成组。
    */
-  public getDataSourceHistoryGroups(): DataSourceHistoryGroup[] {
-    const groups: DataSourceHistoryGroup[] = [];
+  public getDataSourceHistoryGroups(): StackHistoryGroup<DataSourceStepValue, 'data-source'>[] {
+    const groups: StackHistoryGroup<DataSourceStepValue, 'data-source'>[] = [];
     Object.entries(this.state.dataSourceState).forEach(([id, undoRedo]) => {
       if (!undoRedo) return;
       const list = undoRedo.getElementList();
diff --git a/packages/editor/src/type.ts b/packages/editor/src/type.ts
index 5750b5a6..8be2d4cd 100644
--- a/packages/editor/src/type.ts
+++ b/packages/editor/src/type.ts
@@ -962,32 +962,26 @@ export interface PageHistoryGroup {
 }
 
 /**
- * 代码块历史面板分组。
- * - 同一 codeBlockId 的栈内，相邻的 'update' 操作会合并成一个 group；
- * - 'add' / 'remove' 始终独立成组（语义上是一次性事件）。
+ * 数据源 / 代码块历史面板分组（按 id 分栈展示）。
+ * 二者结构完全一致，仅 `kind` 与 step 类型不同，统一由该泛型描述：
+ * - 数据源：`StackHistoryGroup<DataSourceStepValue, 'data-source'>`；
+ * - 代码块：`StackHistoryGroup<CodeBlockStepValue, 'code-block'>`。
+ *
+ * 每条操作记录独立成组，不做相邻合并（与页面历史 {@link PageHistoryGroup} 不同），故 `steps` 恒为单元素。
  */
-export interface CodeBlockHistoryGroup {
-  kind: 'code-block';
-  /** 关联的 codeBlock id */
+export interface StackHistoryGroup<
+  T extends BaseStepValue = BaseStepValue,
+  K extends 'code-block' | 'data-source' = 'code-block' | 'data-source',
+> {
+  /** 区分代码块 / 数据源。 */
+  kind: K;
+  /** 关联的代码块 / 数据源 id。 */
   id: Id;
-  /** 该分组的操作类型 */
+  /** 该分组的操作类型。 */
   opType: HistoryOpType;
-  /** 组内所有步骤，按时间正序 */
-  steps: { step: CodeBlockStepValue; index: number; applied: boolean; isCurrent?: boolean }[];
-  /** 组内最后一步是否已应用，用于整组的状态展示 */
-  applied: boolean;
-  /** 是否为当前所在的分组（包含该栈最近一次已应用步骤的那一组）。 */
-  isCurrent?: boolean;
-}
-
-/**
- * 数据源历史面板分组，结构同 CodeBlockHistoryGroup。
- */
-export interface DataSourceHistoryGroup {
-  kind: 'data-source';
-  id: Id;
-  opType: HistoryOpType;
-  steps: { step: DataSourceStepValue; index: number; applied: boolean; isCurrent?: boolean }[];
+  /** 组内所有步骤，按时间正序（不做相邻合并，恒为单元素）。 */
+  steps: { step: T; index: number; applied: boolean; isCurrent?: boolean }[];
+  /** 组内最后一步是否已应用，用于整组的状态展示。 */
   applied: boolean;
   /** 是否为当前所在的分组（包含该栈最近一次已应用步骤的那一组）。 */
   isCurrent?: boolean;
@@ -1296,8 +1290,11 @@ export interface DiffDialogPayload {
  * 各自实现一份，作为整体注入，避免把 describe* / isStep* 拆成多个独立 props 反复透传。
  */
 export interface HistoryRowDescriptor<T extends BaseStepValue = BaseStepValue> {
-  /** 组级描述文案生成器，接收一个 group，返回展示文本。 */
-  describeGroup: (_group: any) => string;
+  /**
+   * 组级描述文案生成器，接收一个 group，返回展示文本。
+   * 不传时回退到对组内最后一步调用 {@link describeStep}（适用于不做相邻合并、每组恒为单步的历史，如数据源/代码块）。
+   */
+  describeGroup?: (_group: any) => string;
   /** 单步描述文案生成器，接收一个 step，返回展示文本（合并组展开后的子步列表用）。 */
   describeStep: (_step: T) => string;
   /** 判断某个 step 是否可查看差异（前后值都存在）。不传则一律不展示差异入口。 */
diff --git a/packages/editor/src/utils/history.ts b/packages/editor/src/utils/history.ts
index fe01ba4b..7efc2e46 100644
--- a/packages/editor/src/utils/history.ts
+++ b/packages/editor/src/utils/history.ts
@@ -26,9 +26,9 @@ import { guid } from '@tmagic/utils';
 import type {
   BaseStepValue,
   HistoryOpSource,
-  HistoryOpType,
   PageHistoryGroup,
   PageHistoryStepEntry,
+  StackHistoryGroup,
   StepDiffItem,
   StepValue,
 } from '@editor/type';
@@ -131,14 +131,7 @@ export const mergeStackSteps = <S extends BaseStepValue, K extends 'code-block'
   id: Id,
   list: S[],
   cursor: number,
-): {
-  kind: K;
-  id: Id;
-  opType: HistoryOpType;
-  steps: { step: S; index: number; applied: boolean; isCurrent?: boolean }[];
-  applied: boolean;
-  isCurrent?: boolean;
-}[] => {
+): StackHistoryGroup<S, K>[] => {
   const currentIndex = cursor - 1;
   return list.map((step, index) => {
     const applied = index < cursor;
diff --git a/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts b/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts
index f5d65b9e..a18c180e 100644
--- a/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts
@@ -8,8 +8,8 @@ import { defineComponent, h } from 'vue';
 import { mount } from '@vue/test-utils';
 
 import BucketTab from '@editor/layouts/history-list/BucketTab.vue';
-import { describeCodeBlockGroup, describeCodeBlockStep } from '@editor/layouts/history-list/composables';
-import type { CodeBlockHistoryGroup, CodeBlockStepValue } from '@editor/type';
+import { describeStep } from '@editor/layouts/history-list/composables';
+import type { CodeBlockStepValue, HistoryBucketConfig, StackHistoryGroup } from '@editor/type';
 
 vi.mock('@tmagic/design', () => ({
   TMagicScrollbar: defineComponent({
@@ -40,7 +40,7 @@ const buildGroup = (
   steps: any[],
   applied = true,
   startIndex = 0,
-): CodeBlockHistoryGroup => ({
+): StackHistoryGroup<CodeBlockStepValue, 'code-block'> => ({
   kind: 'code-block',
   id,
   opType,
@@ -49,16 +49,17 @@ const buildGroup = (
 });
 
 /** 代码块 tab 复用通用 BucketTab，固定注入代码块的 config（title/prefix/describe/isStepDiffable）。 */
+const codeBlockConfig: HistoryBucketConfig<any> = {
+  title: '代码块',
+  prefix: 'cb',
+  describeStep: (step: CodeBlockStepValue): string => describeStep(step, (content) => content?.name, '代码块'),
+  isStepDiffable: (step: CodeBlockStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
+};
+
 const mountCodeBlockTab = (props: { buckets: any[]; expanded: Record<string, boolean> }) =>
   mount(BucketTab, {
     props: {
-      config: {
-        title: '代码块',
-        prefix: 'cb',
-        describeGroup: describeCodeBlockGroup,
-        describeStep: describeCodeBlockStep,
-        isStepDiffable: (step: CodeBlockStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
-      },
+      config: codeBlockConfig,
       ...props,
     },
   });
@@ -83,7 +84,7 @@ describe('CodeBlockTab.vue', () => {
     expect(wrapper.find('.m-editor-history-list-bucket-title code').text()).toBe('code_1');
 
     const desc = wrapper.find('.m-editor-history-list-item-desc').text();
-    expect(desc).toBe('创建 fn (id: code_1)');
+    expect(desc).toBe('fn (id: code_1)');
   });
 
   test('toggle 透传：key 形如 cb-${id}-${idx}', async () => {
@@ -178,7 +179,7 @@ describe('CodeBlockTab.vue', () => {
     const items = wrapper.findAll('.m-editor-history-list-substeps li');
     expect(items).toHaveLength(2);
     // 子步倒序渲染（最新在上）：params 在前，content 在后
-    expect(items[0].text()).toContain('修改 fn (id: code_1) · params');
-    expect(items[1].text()).toContain('修改 fn (id: code_1) · content');
+    expect(items[0].text()).toContain('fn (id: code_1) · params');
+    expect(items[1].text()).toContain('fn (id: code_1) · content');
   });
 });
diff --git a/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts b/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts
index a0a43a95..287e50aa 100644
--- a/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts
@@ -8,8 +8,8 @@ import { defineComponent, h } from 'vue';
 import { mount } from '@vue/test-utils';
 
 import BucketTab from '@editor/layouts/history-list/BucketTab.vue';
-import { describeDataSourceGroup, describeDataSourceStep } from '@editor/layouts/history-list/composables';
-import type { DataSourceHistoryGroup, DataSourceStepValue } from '@editor/type';
+import { describeStep } from '@editor/layouts/history-list/composables';
+import type { DataSourceStepValue, HistoryBucketConfig, StackHistoryGroup } from '@editor/type';
 
 vi.mock('@tmagic/design', () => ({
   TMagicScrollbar: defineComponent({
@@ -40,7 +40,7 @@ const buildGroup = (
   steps: any[],
   applied = true,
   startIndex = 0,
-): DataSourceHistoryGroup => ({
+): StackHistoryGroup<DataSourceStepValue, 'data-source'> => ({
   kind: 'data-source',
   id,
   opType,
@@ -49,16 +49,17 @@ const buildGroup = (
 });
 
 /** 数据源 tab 复用通用 BucketTab，固定注入数据源的 config（title/prefix/describe/isStepDiffable）。 */
+const dataSourceConfig: HistoryBucketConfig<any> = {
+  title: '数据源',
+  prefix: 'ds',
+  describeStep: (step: DataSourceStepValue): string => describeStep(step, (schema) => schema?.title, '数据源'),
+  isStepDiffable: (step: DataSourceStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
+};
+
 const mountDataSourceTab = (props: { buckets: any[]; expanded: Record<string, boolean> }) =>
   mount(BucketTab, {
     props: {
-      config: {
-        title: '数据源',
-        prefix: 'ds',
-        describeGroup: describeDataSourceGroup,
-        describeStep: describeDataSourceStep,
-        isStepDiffable: (step: DataSourceStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
-      },
+      config: dataSourceConfig,
       ...props,
     },
   });
@@ -92,9 +93,9 @@ describe('DataSourceTab.vue', () => {
     const rows = wrapper.findAll('.m-editor-history-list-group');
     expect(rows).toHaveLength(2);
     expect(rows[0].find('.m-editor-history-list-item-op').text()).toBe('新增');
-    expect(rows[0].find('.m-editor-history-list-item-desc').text()).toBe('创建 A (id: ds_1)');
+    expect(rows[0].find('.m-editor-history-list-item-desc').text()).toBe('A (id: ds_1)');
     expect(rows[1].find('.m-editor-history-list-item-op').text()).toBe('删除');
-    expect(rows[1].find('.m-editor-history-list-item-desc').text()).toBe('删除 B (id: ds_2)');
+    expect(rows[1].find('.m-editor-history-list-item-desc').text()).toBe('B (id: ds_2)');
   });
 
   test('toggle 透传：key 形如 ds-${id}-${idx}', async () => {
diff --git a/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts b/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts
index aaf08a6d..16c2aa21 100644
--- a/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts
@@ -158,9 +158,9 @@ describe('HistoryListPanel.vue', () => {
     expect(rows.length).toBe(3);
 
     const descs = rows.map((r) => r.find('.m-editor-history-list-item-desc').text());
-    expect(descs.some((t) => t.includes('新增 1 个节点'))).toBe(true);
-    expect(descs.some((t) => t === '创建 DS (id: ds_1)')).toBe(true);
-    expect(descs.some((t) => t === '创建 CB (id: code_1)')).toBe(true);
+    expect(descs.some((t) => t === 'A (id: n1)')).toBe(true);
+    expect(descs.some((t) => t === 'DS (id: ds_1)')).toBe(true);
+    expect(descs.some((t) => t === 'CB (id: code_1)')).toBe(true);
   });
 
   test('点击合并组头部能切换 expanded 状态（不触发 goto）', async () => {
@@ -288,7 +288,7 @@ describe('HistoryListPanel.vue', () => {
 
     const heads = wrapper.findAll('.m-editor-history-list-group-head');
     // 找到数据源 tab 那一组
-    const dsHead = heads.find((h) => h.text().includes('创建 DS'));
+    const dsHead = heads.find((h) => h.text().includes('DS (id: ds_1)'));
     expect(dsHead).toBeTruthy();
     await dsHead!.find('.m-editor-history-list-item-goto').trigger('click');
     expect(dataSourceService.goto).toHaveBeenCalledWith('ds_1', 1);
@@ -307,7 +307,7 @@ describe('HistoryListPanel.vue', () => {
     await nextTick();
 
     const heads = wrapper.findAll('.m-editor-history-list-group-head');
-    const cbHead = heads.find((h) => h.text().includes('创建 CB'));
+    const cbHead = heads.find((h) => h.text().includes('CB (id: code_1)'));
     expect(cbHead).toBeTruthy();
     await cbHead!.find('.m-editor-history-list-item-goto').trigger('click');
     expect(codeBlockService.goto).toHaveBeenCalledWith('code_1', 1);
diff --git a/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts b/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts
index 688d2836..6ab117f0 100644
--- a/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts
@@ -71,10 +71,10 @@ describe('PageTab.vue', () => {
     expect(rows).toHaveLength(2);
     // 第一组 add
     expect(rows[0].find('.m-editor-history-list-item-op').text()).toBe('新增');
-    expect(rows[0].find('.m-editor-history-list-item-desc').text()).toContain('新增 1 个节点');
+    expect(rows[0].find('.m-editor-history-list-item-desc').text()).toBe('A (id: n1)');
     // 第二组 update
     expect(rows[1].find('.m-editor-history-list-item-op').text()).toBe('修改');
-    expect(rows[1].find('.m-editor-history-list-item-desc').text()).toBe('修改 按钮 (id: btn) · style.color');
+    expect(rows[1].find('.m-editor-history-list-item-desc').text()).toBe('按钮 (id: btn) · style.color');
   });
 
   test('step 含 timestamp 时渲染时间元素', () => {
diff --git a/packages/editor/tests/unit/layouts/history-list/composables.spec.ts b/packages/editor/tests/unit/layouts/history-list/composables.spec.ts
index 62a56079..74d065bb 100644
--- a/packages/editor/tests/unit/layouts/history-list/composables.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/composables.spec.ts
@@ -8,31 +8,18 @@ import { defineComponent, h } from 'vue';
 import { mount } from '@vue/test-utils';
 
 import {
-  describeCodeBlockGroup,
-  describeCodeBlockStep,
-  describeDataSourceGroup,
-  describeDataSourceStep,
   describePageGroup,
   describePageStep,
   formatHistoryFullTime,
   formatHistoryTime,
   groupTimestamp,
-  isCodeBlockStepRevertable,
-  isDataSourceStepRevertable,
   isPageStepRevertable,
+  isSingleDiffStepRevertable,
   opLabel,
   useHistoryList,
 } from '@editor/layouts/history-list/composables';
 import historyService from '@editor/services/history';
-import type {
-  CodeBlockHistoryGroup,
-  CodeBlockStepValue,
-  DataSourceHistoryGroup,
-  DataSourceStepValue,
-  PageHistoryGroup,
-  PageHistoryStepEntry,
-  StepValue,
-} from '@editor/type';
+import type { PageHistoryGroup, PageHistoryStepEntry, StepValue } from '@editor/type';
 
 afterEach(() => {
   historyService.reset();
@@ -111,7 +98,7 @@ describe('describePageStep', () => {
       opType: 'add',
       diff: [{ newSchema: { id: 'btn_1', type: 'button', name: '主按钮' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('新增 1 个节点（主按钮 (id: btn_1)）');
+    expect(describePageStep(step)).toBe('主按钮 (id: btn_1)');
   });
 
   test('add 节点无 name 但有 type：使用 type 作为名称', () => {
@@ -119,7 +106,7 @@ describe('describePageStep', () => {
       opType: 'add',
       diff: [{ newSchema: { id: 'n1', type: 'text' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('新增 1 个节点（text (id: n1)）');
+    expect(describePageStep(step)).toBe('text (id: n1)');
   });
 
   test('add 节点 name 与 id 相同：仅显示 id', () => {
@@ -127,7 +114,7 @@ describe('describePageStep', () => {
       opType: 'add',
       diff: [{ newSchema: { id: 'n1', name: 'n1' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('新增 1 个节点（n1）');
+    expect(describePageStep(step)).toBe('n1');
   });
 
   test('add 多个节点：仅给出数量', () => {
@@ -135,12 +122,12 @@ describe('describePageStep', () => {
       opType: 'add',
       diff: [{ newSchema: { id: 'a' } }, { newSchema: { id: 'b' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('新增 2 个节点');
+    expect(describePageStep(step)).toBe('2 个节点');
   });
 
   test('add 无 nodes：count 为 0 且不附名称', () => {
     const step = { opType: 'add' } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('新增 0 个节点');
+    expect(describePageStep(step)).toBe('0 个节点');
   });
 
   test('remove 单个节点：含名称与 id', () => {
@@ -148,7 +135,7 @@ describe('describePageStep', () => {
       opType: 'remove',
       diff: [{ oldSchema: { id: 'btn_1', name: '主按钮' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('删除 1 个节点（主按钮 (id: btn_1)）');
+    expect(describePageStep(step)).toBe('主按钮 (id: btn_1)');
   });
 
   test('remove 多个节点', () => {
@@ -156,7 +143,7 @@ describe('describePageStep', () => {
       opType: 'remove',
       diff: [{ oldSchema: { id: 'a' } }, { oldSchema: { id: 'b' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('删除 2 个节点');
+    expect(describePageStep(step)).toBe('2 个节点');
   });
 
   test('update 单节点：附 propPath 与 id', () => {
@@ -170,7 +157,7 @@ describe('describePageStep', () => {
         },
       ],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('修改 按钮 (id: btn_1) · style.color');
+    expect(describePageStep(step)).toBe('按钮 (id: btn_1) · style.color');
   });
 
   test('update 单节点无 propPath：仅展示节点', () => {
@@ -178,7 +165,7 @@ describe('describePageStep', () => {
       opType: 'update',
       diff: [{ newSchema: { id: 'btn_1', name: '按钮' }, oldSchema: { id: 'btn_1' } }],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('修改 按钮 (id: btn_1)');
+    expect(describePageStep(step)).toBe('按钮 (id: btn_1)');
   });
 
   test('update 多节点：返回数量', () => {
@@ -189,12 +176,12 @@ describe('describePageStep', () => {
         { newSchema: { id: 'b' }, oldSchema: { id: 'b' } },
       ],
     } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('修改 2 个节点');
+    expect(describePageStep(step)).toBe('2 个节点');
   });
 
-  test('update diff 缺省：兜底为「修改节点」', () => {
+  test('update diff 缺省：兜底为「节点」', () => {
     const step = { opType: 'update' } as unknown as StepValue;
-    expect(describePageStep(step)).toBe('修改节点');
+    expect(describePageStep(step)).toBe('节点');
   });
 });
 
@@ -230,10 +217,10 @@ describe('describePageGroup', () => {
       applied: true,
       steps: [buildPageEntry(step)],
     };
-    expect(describePageGroup(group)).toBe('修改 A (id: a)');
+    expect(describePageGroup(group)).toBe('A (id: a)');
   });
 
-  test('多步合并组：聚合 propPath 列表', () => {
+  test('多步合并组：展示目标名称与 id', () => {
     const mkStep = (path: string) =>
       ({
         opType: 'update',
@@ -255,10 +242,10 @@ describe('describePageGroup', () => {
       applied: true,
       steps: [buildPageEntry(mkStep('style.color'), 0), buildPageEntry(mkStep('style.fontSize'), 1)],
     };
-    expect(describePageGroup(group)).toBe('修改 按钮 (id: btn_1) · style.color, style.fontSize');
+    expect(describePageGroup(group)).toBe('按钮 (id: btn_1)');
   });
 
-  test('多步合并组：超过 3 个 propPath 时截断并加省略号', () => {
+  test('多步合并组：多步时仍仅展示目标', () => {
     const mkStep = (path: string) =>
       ({
         opType: 'update',
@@ -285,9 +272,7 @@ describe('describePageGroup', () => {
         buildPageEntry(mkStep('d'), 3),
       ],
     };
-    const desc = describePageGroup(group);
-    expect(desc).toContain('修改 按钮 (id: btn_1) · a, b, c');
-    expect(desc.endsWith('…')).toBe(true);
+    expect(describePageGroup(group)).toBe('按钮 (id: btn_1)');
   });
 
   test('多步合并组无 propPath 时仅展示目标', () => {
@@ -306,7 +291,7 @@ describe('describePageGroup', () => {
       applied: true,
       steps: [buildPageEntry(mkStep(), 0), buildPageEntry(mkStep(), 1)],
     };
-    expect(describePageGroup(group)).toBe('修改 按钮 (id: btn_1)');
+    expect(describePageGroup(group)).toBe('按钮 (id: btn_1)');
   });
 
   test('多步组 targetName 缺省时使用 targetId 兜底', () => {
@@ -322,226 +307,7 @@ describe('describePageGroup', () => {
       ],
     };
     // targetName 为 undefined，labelWithId 看 label === id 时只展示 id
-    expect(describePageGroup(group)).toBe('修改 btn_1');
-  });
-});
-
-describe('describeDataSourceStep', () => {
-  test('historyDescription 优先', () => {
-    const step = {
-      id: 'ds_1',
-      opType: 'update',
-      diff: [{}],
-      historyDescription: '自定义',
-    } as unknown as DataSourceStepValue;
-    expect(describeDataSourceStep(step)).toBe('自定义');
-  });
-
-  test('新增（oldSchema=null）：展示 title 与 id', () => {
-    const step = {
-      id: 'ds_1',
-      opType: 'add',
-      diff: [{ newSchema: { id: 'ds_1', title: '用户列表' } }],
-    } as unknown as DataSourceStepValue;
-    expect(describeDataSourceStep(step)).toBe('创建 用户列表 (id: ds_1)');
-  });
-
-  test('删除（newSchema=null）：展示 title 与 id', () => {
-    const step = {
-      id: 'ds_1',
-      opType: 'remove',
-      diff: [{ oldSchema: { id: 'ds_1', title: '用户列表' } }],
-    } as unknown as DataSourceStepValue;
-    expect(describeDataSourceStep(step)).toBe('删除 用户列表 (id: ds_1)');
-  });
-
-  test('修改：展示 propPath', () => {
-    const step = {
-      id: 'ds_1',
-      opType: 'update',
-      diff: [
-        {
-          oldSchema: { id: 'ds_1', title: '用户列表' },
-          newSchema: { id: 'ds_1', title: '用户列表' },
-          changeRecords: [{ propPath: 'fields.0.name' }],
-        },
-      ],
-    } as unknown as DataSourceStepValue;
-    expect(describeDataSourceStep(step)).toBe('修改 用户列表 (id: ds_1) · fields.0.name');
-  });
-
-  test('修改无 title 时仅展示 id', () => {
-    const step = {
-      id: 'ds_1',
-      opType: 'update',
-      diff: [{ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' } }],
-    } as unknown as DataSourceStepValue;
-    expect(describeDataSourceStep(step)).toBe('修改 ds_1');
-  });
-});
-
-describe('describeDataSourceGroup', () => {
-  test('多步组：聚合 propPath 与目标 id', () => {
-    const mkStep = (path: string) =>
-      ({
-        id: 'ds_1',
-        opType: 'update',
-        diff: [
-          {
-            oldSchema: { id: 'ds_1', title: 'T' },
-            newSchema: { id: 'ds_1', title: 'T' },
-            changeRecords: [{ propPath: path }],
-          },
-        ],
-      }) as unknown as DataSourceStepValue;
-    const group: DataSourceHistoryGroup = {
-      kind: 'data-source',
-      id: 'ds_1',
-      opType: 'update',
-      applied: true,
-      steps: [
-        { step: mkStep('a'), index: 0, applied: true },
-        { step: mkStep('b'), index: 1, applied: true },
-      ],
-    };
-    expect(describeDataSourceGroup(group)).toBe('修改 T (id: ds_1) · a, b');
-  });
-
-  test('单步组：复用 describeDataSourceStep', () => {
-    const group: DataSourceHistoryGroup = {
-      kind: 'data-source',
-      id: 'ds_1',
-      opType: 'add',
-      applied: true,
-      steps: [
-        {
-          step: {
-            id: 'ds_1',
-            opType: 'add',
-            diff: [{ newSchema: { id: 'ds_1', title: 'T' } }],
-          } as unknown as DataSourceStepValue,
-          index: 0,
-          applied: true,
-        },
-      ],
-    };
-    expect(describeDataSourceGroup(group)).toBe('创建 T (id: ds_1)');
-  });
-
-  test('historyDescription 优先', () => {
-    const group: DataSourceHistoryGroup = {
-      kind: 'data-source',
-      id: 'ds_1',
-      opType: 'update',
-      applied: true,
-      steps: [
-        {
-          step: {
-            id: 'ds_1',
-            opType: 'update',
-            diff: [{}],
-            historyDescription: '我的描述',
-          } as unknown as DataSourceStepValue,
-          index: 0,
-          applied: true,
-        },
-      ],
-    };
-    expect(describeDataSourceGroup(group)).toBe('我的描述');
-  });
-});
-
-describe('describeCodeBlockStep', () => {
-  test('新增', () => {
-    const step = {
-      id: 'code_1',
-      opType: 'add',
-      diff: [{ newSchema: { id: 'code_1', name: 'onClick' } }],
-    } as unknown as CodeBlockStepValue;
-    expect(describeCodeBlockStep(step)).toBe('创建 onClick (id: code_1)');
-  });
-
-  test('删除', () => {
-    const step = {
-      id: 'code_1',
-      opType: 'remove',
-      diff: [{ oldSchema: { id: 'code_1', name: 'onClick' } }],
-    } as unknown as CodeBlockStepValue;
-    expect(describeCodeBlockStep(step)).toBe('删除 onClick (id: code_1)');
-  });
-
-  test('修改 + propPath', () => {
-    const step = {
-      id: 'code_1',
-      opType: 'update',
-      diff: [
-        {
-          oldSchema: { id: 'code_1', name: 'onClick' },
-          newSchema: { id: 'code_1', name: 'onClick' },
-          changeRecords: [{ propPath: 'content' }],
-        },
-      ],
-    } as unknown as CodeBlockStepValue;
-    expect(describeCodeBlockStep(step)).toBe('修改 onClick (id: code_1) · content');
-  });
-
-  test('historyDescription 优先', () => {
-    const step = {
-      id: 'code_1',
-      opType: 'update',
-      diff: [{}],
-      historyDescription: '自定义说明',
-    } as unknown as CodeBlockStepValue;
-    expect(describeCodeBlockStep(step)).toBe('自定义说明');
-  });
-});
-
-describe('describeCodeBlockGroup', () => {
-  test('多步组：聚合 propPath', () => {
-    const mkStep = (path: string) =>
-      ({
-        id: 'code_1',
-        opType: 'update',
-        diff: [
-          {
-            oldSchema: { id: 'code_1', name: 'fn' },
-            newSchema: { id: 'code_1', name: 'fn' },
-            changeRecords: [{ propPath: path }],
-          },
-        ],
-      }) as unknown as CodeBlockStepValue;
-    const group: CodeBlockHistoryGroup = {
-      kind: 'code-block',
-      id: 'code_1',
-      opType: 'update',
-      applied: true,
-      steps: [
-        { step: mkStep('content'), index: 0, applied: true },
-        { step: mkStep('params'), index: 1, applied: true },
-      ],
-    };
-    expect(describeCodeBlockGroup(group)).toBe('修改 fn (id: code_1) · content, params');
-  });
-
-  test('单步组：复用 step 描述', () => {
-    const group: CodeBlockHistoryGroup = {
-      kind: 'code-block',
-      id: 'code_1',
-      opType: 'remove',
-      applied: false,
-      steps: [
-        {
-          step: {
-            id: 'code_1',
-            opType: 'remove',
-            diff: [{ oldSchema: { id: 'code_1', name: 'fn' } }],
-          } as unknown as CodeBlockStepValue,
-          index: 0,
-          applied: false,
-        },
-      ],
-    };
-    expect(describeCodeBlockGroup(group)).toBe('删除 fn (id: code_1)');
+    expect(describePageGroup(group)).toBe('btn_1');
   });
 });
 
@@ -684,38 +450,20 @@ describe('isPageStepRevertable', () => {
   });
 });
 
-describe('isDataSourceStepRevertable', () => {
+describe('isSingleDiffStepRevertable', () => {
   test('新增 / 删除 始终可回滚', () => {
-    expect(isDataSourceStepRevertable({ diff: [{ newSchema: { id: 'ds_1' } }] } as any)).toBe(true);
-    expect(isDataSourceStepRevertable({ diff: [{ oldSchema: { id: 'ds_1' } }] } as any)).toBe(true);
+    expect(isSingleDiffStepRevertable({ diff: [{ newSchema: { id: 'ds_1' } }] } as any)).toBe(true);
+    expect(isSingleDiffStepRevertable({ diff: [{ oldSchema: { id: 'ds_1' } }] } as any)).toBe(true);
   });
 
   test('更新有 changeRecords 才可回滚', () => {
     expect(
-      isDataSourceStepRevertable({
+      isSingleDiffStepRevertable({
         diff: [{ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' }, changeRecords: [{ propPath: 'title' }] }],
       } as any),
     ).toBe(true);
     expect(
-      isDataSourceStepRevertable({ diff: [{ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' } }] } as any),
-    ).toBe(false);
-  });
-});
-
-describe('isCodeBlockStepRevertable', () => {
-  test('新增 / 删除 始终可回滚', () => {
-    expect(isCodeBlockStepRevertable({ diff: [{ newSchema: { id: 'code_1' } }] } as any)).toBe(true);
-    expect(isCodeBlockStepRevertable({ diff: [{ oldSchema: { id: 'code_1' } }] } as any)).toBe(true);
-  });
-
-  test('更新有 changeRecords 才可回滚', () => {
-    expect(
-      isCodeBlockStepRevertable({
-        diff: [{ oldSchema: { id: 'code_1' }, newSchema: { id: 'code_1' }, changeRecords: [{ propPath: 'content' }] }],
-      } as any),
-    ).toBe(true);
-    expect(
-      isCodeBlockStepRevertable({ diff: [{ oldSchema: { id: 'code_1' }, newSchema: { id: 'code_1' } }] } as any),
+      isSingleDiffStepRevertable({ diff: [{ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' } }] } as any),
     ).toBe(false);
   });
 });