diff --git a/packages/editor/src/layouts/history-list/Bucket.vue b/packages/editor/src/layouts/history-list/Bucket.vue
index 2dcd7125..93baee46 100644
--- a/packages/editor/src/layouts/history-list/Bucket.vue
+++ b/packages/editor/src/layouts/history-list/Bucket.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="m-editor-history-list-bucket">
     <div class="m-editor-history-list-bucket-title">
-      <span>{{ title }}</span>
+      <span>{{ config.title }}</span>
       <code>{{ String(bucketId) }}</code>
       <span class="m-editor-history-list-bucket-count">{{ groups.length }} 组</span>
     </div>
@@ -9,33 +9,10 @@
     <ul class="m-editor-history-list-ul">
       <GroupRow
         v-for="group in groups"
-        :key="`${prefix}-${bucketId}-${group.steps[0]?.index}`"
-        :group-key="`${prefix}-${bucketId}-${group.steps[0]?.index}`"
-        :applied="group.applied"
-        :merged="group.steps.length > 1"
-        :op-type="group.opType"
-        :desc="describeGroup(group)"
-        :source="groupSource(group)"
-        :time="formatHistoryTime(groupTimestamp(group))"
-        :time-title="formatHistoryFullTime(groupTimestamp(group))"
-        :step-count="group.steps.length"
-        :sub-steps="
-          group.steps.map((s) => ({
-            index: s.index,
-            applied: s.applied,
-            isCurrent: s.isCurrent,
-            saved: s.step.saved,
-            desc: describeStep(s.step),
-            diffable: isStepDiffable ? isStepDiffable(s.step) : false,
-            revertable: s.applied && (isStepRevertable ? isStepRevertable(s.step) : true),
-            source: s.step.source,
-            time: formatHistoryTime(s.step.timestamp),
-            timeTitle: formatHistoryFullTime(s.step.timestamp),
-          }))
-        "
-        :is-current="group.isCurrent"
-        :expanded="!!expanded[`${prefix}-${bucketId}-${group.steps[0]?.index}`]"
-        :goto-enabled="gotoEnabled"
+        :key="rowKey(group)"
+        :group="toRow(group)"
+        :expanded="!!expanded[rowKey(group)]"
+        :goto-enabled="config.gotoEnabled"
         @toggle="(key: string) => $emit('toggle', key)"
         @goto="(index: number) => $emit('goto', bucketId, index)"
         @diff-step="(index: number) => $emit('diff-step', bucketId, index)"
@@ -44,12 +21,12 @@
       <!--
         初始状态项：永远位于该 bucket 列表底部（同样按倒序展示，最底部 = 最早状态）。
         当 bucket 内所有 group 都未 applied 时即为当前位置。
-        showInitial=false 时不展示（用于没有"撤销到初始状态"语义的自定义历史，如业务模块历史）。
+        config.showInitial=false 时不展示（用于没有"撤销到初始状态"语义的自定义历史，如业务模块历史）。
       -->
       <InitialRow
-        v-if="showInitial !== false"
+        v-if="config.showInitial !== false"
         :is-current="isInitial"
-        :goto-enabled="gotoEnabled"
+        :goto-enabled="config.gotoEnabled"
         @goto-initial="$emit('goto-initial', bucketId)"
       />
     </ul>
@@ -61,8 +38,8 @@ import { computed } from 'vue';
 
 import type { BaseStepValue } from '@editor/type';
 
-import type { HistoryBucketGroup } from './composables';
-import { formatHistoryFullTime, formatHistoryTime, groupSource, groupTimestamp } from './composables';
+import type { HistoryBucketConfig, HistoryBucketGroup, HistoryRowGroup } from './composables';
+import { toRowGroup } from './composables';
 import GroupRow from './GroupRow.vue';
 import InitialRow from './InitialRow.vue';
 
@@ -70,39 +47,19 @@ defineOptions({
   name: 'MEditorHistoryListBucket',
 });
 
-const props = withDefaults(
-  defineProps<{
-    /** Bucket 标题，例如 "数据源" / "代码块"，渲染在 bucket 头部。 */
-    title: string;
-    /** 当前 bucket 对应的目标 id（dataSource.id 或 codeBlock.id），同时用于组装子项的 key。 */
-    bucketId: string | number;
-    /**
-     * 子项 key 的命名空间前缀：内置 `ds` 表示数据源，`cb` 表示代码块；
-     * 业务方复用 Bucket 时可传入自定义前缀（如 `mod`）。与上层折叠状态 key 保持一致。
-     */
-    prefix: string;
-    /** 是否展示底部「回到初始状态」入口，默认 true。无 undo cursor 语义的自定义历史可传 false 关闭。 */
-    showInitial?: boolean;
-    /** 当前 bucket 下的所有历史分组，按时间倒序展示（最近的操作在前）。 */
-    groups: HistoryBucketGroup<T>[];
-    /** 组级描述文案生成器，接收一个 group，返回展示文本。由父组件按业务类型注入。 */
-    describeGroup: (_group: any) => string;
-    /** 单步描述文案生成器，接收一个 step，返回展示文本。用于合并组展开后的子步列表。 */
-    describeStep: (_step: T) => string;
-    /** 判断某个 step 是否可查看差异（前后值都存在）。由父组件按业务类型注入；不传则一律不展示差异入口。 */
-    isStepDiffable?: (_step: T) => boolean;
-    /** 判断某个 step 是否支持回滚（如更新需带 changeRecords）。由父组件按业务类型注入；不传则已应用即可回滚。 */
-    isStepRevertable?: (_step: T) => boolean;
-    /** 共享的折叠状态表（key -> 是否展开），由顶层 panel 统一维护以便跨 tab 复用。 */
-    expanded: Record<string, boolean>;
-    /** 是否支持「跳转到该记录」(goto)。默认 true。 */
-    gotoEnabled?: boolean;
-  }>(),
-  {
-    showInitial: true,
-    gotoEnabled: true,
-  },
-);
+const props = defineProps<{
+  /**
+   * 该类历史的整体渲染配置（title / prefix / describe* / isStep* / showInitial / gotoEnabled）。
+   * 由父组件按业务类型注入，组件内部按需读取，避免逐项透传多个 props。
+   */
+  config: HistoryBucketConfig<T>;
+  /** 当前 bucket 对应的目标 id（dataSource.id 或 codeBlock.id），同时用于组装子项的 key。 */
+  bucketId: string | number;
+  /** 当前 bucket 下的所有历史分组，按时间倒序展示（最近的操作在前）。 */
+  groups: HistoryBucketGroup<T>[];
+  /** 共享的折叠状态表（key -> 是否展开），由顶层 panel 统一维护以便跨 tab 复用。 */
+  expanded: Record<string, boolean>;
+}>();
 
 defineEmits<{
   /** 透传子组件 GroupRow 的 toggle，由上层 panel 更新 expanded。 */
@@ -120,6 +77,15 @@ defineEmits<{
   (_e: 'revert-step', _bucketId: string | number, _index: number): void;
 }>();
 
+/**
+ * 子项 / 折叠状态 key：`${prefix}-${bucketId}-${组内首步 index}`。
+ * 以稳定的 step 索引（而非展示位置）标识分组，历史数据更新后已展开的分组状态仍能正确保持。
+ */
+const rowKey = (group: HistoryBucketGroup<T>) => `${props.config.prefix}-${props.bucketId}-${group.steps[0]?.index}`;
+
+/** 把原始分组派生为 GroupRow 直接消费的视图模型。 */
+const toRow = (group: HistoryBucketGroup<T>): HistoryRowGroup => toRowGroup(group, rowKey(group), props.config);
+
 /** 该 bucket 是否处于初始状态（栈 cursor=0），等价于全部 group 都未 applied。 */
 const isInitial = computed(() => props.groups.length > 0 && props.groups.every((g) => !g.applied));
 </script>
diff --git a/packages/editor/src/layouts/history-list/BucketTab.vue b/packages/editor/src/layouts/history-list/BucketTab.vue
index 4c9ad84f..e2fa2e28 100644
--- a/packages/editor/src/layouts/history-list/BucketTab.vue
+++ b/packages/editor/src/layouts/history-list/BucketTab.vue
@@ -2,22 +2,18 @@
   <div v-if="!buckets.length" class="m-editor-history-list-empty">暂无操作记录</div>
   <template v-else>
     <div class="m-editor-history-list-toolbar">
-      <span class="m-editor-history-list-clear" :title="`清空${title}的历史记录`" @click="$emit('clear')">清空</span>
+      <span class="m-editor-history-list-clear" :title="`清空${config.title}的历史记录`" @click="$emit('clear')"
+        >清空</span
+      >
     </div>
     <TMagicScrollbar max-height="360px">
       <Bucket
         v-for="bucket in buckets"
-        :key="`${prefix}-${bucket.id}`"
-        :title="title"
+        :key="`${config.prefix}-${bucket.id}`"
+        :config="config"
         :bucket-id="bucket.id"
-        :prefix="prefix"
         :groups="bucket.groups"
-        :describe-group="describeGroup"
-        :describe-step="describeStep"
-        :is-step-diffable="isStepDiffable"
-        :is-step-revertable="isStepRevertable"
         :expanded="expanded"
-        :goto-enabled="gotoEnabled"
         @toggle="(key: string) => $emit('toggle', key)"
         @goto="(id: string | number, index: number) => $emit('goto', id, index)"
         @goto-initial="(id: string | number) => $emit('goto-initial', id)"
@@ -34,44 +30,30 @@ import { TMagicScrollbar } from '@tmagic/design';
 import type { BaseStepValue } from '@editor/type';
 
 import Bucket from './Bucket.vue';
-import type { HistoryBucketGroup } from './composables';
+import type { HistoryBucketConfig, HistoryBucketGroup } from './composables';
 
 defineOptions({
   name: 'MEditorHistoryListBucketTab',
 });
 
-withDefaults(
-  defineProps<{
-    /** bucket 头部展示的标题，例如 "数据源" / "代码块"。 */
-    title: string;
-    /** 子项 key 的命名空间前缀（`ds` 数据源 / `cb` 代码块），与上层折叠状态 key 保持一致。 */
-    prefix: string;
-    /**
-     * 已按目标 id 聚拢成的 bucket 列表，每个 bucket 内部的 groups 已按时间倒序排好。
-     * 空数组时显示空态。
-     */
-    buckets: { id: string | number; groups: HistoryBucketGroup<T>[] }[];
-    /** 组级描述文案生成器，由父组件按业务类型注入。 */
-    describeGroup: (_group: any) => string;
-    /** 单步描述文案生成器，由父组件按业务类型注入。 */
-    describeStep: (_step: T) => string;
-    /** 判断某个 step 是否可查看差异（前后值都存在）。由父组件按业务类型注入。 */
-    isStepDiffable: (_step: T) => boolean;
-    /** 判断某个 step 是否支持回滚（如更新需带 changeRecords）。由父组件按业务类型注入；不传则已应用即可回滚。 */
-    isStepRevertable?: (_step: T) => boolean;
-    /**
-     * 共享的折叠状态表（key -> 是否展开），由顶层 panel 统一维护。
-     * 本 tab 使用 `${prefix}-${id}-${组内首步 index}` 作为 key——以稳定的 step 索引而非展示位置标识分组，
-     * 这样历史数据更新后已展开的分组状态仍能正确保持。
-     */
-    expanded: Record<string, boolean>;
-    /** 是否支持「跳转到该记录」(goto)，透传给 Bucket。默认 true。 */
-    gotoEnabled?: boolean;
-  }>(),
-  {
-    gotoEnabled: true,
-  },
-);
+defineProps<{
+  /**
+   * 该类历史的整体渲染配置（title / prefix / describe* / isStep* / showInitial / gotoEnabled），
+   * 由父组件按业务类型注入并整体透传给 Bucket，避免逐项透传多个 props。
+   */
+  config: HistoryBucketConfig<T>;
+  /**
+   * 已按目标 id 聚拢成的 bucket 列表，每个 bucket 内部的 groups 已按时间倒序排好。
+   * 空数组时显示空态。
+   */
+  buckets: { id: string | number; groups: HistoryBucketGroup<T>[] }[];
+  /**
+   * 共享的折叠状态表（key -> 是否展开），由顶层 panel 统一维护。
+   * key 形如 `${prefix}-${id}-${组内首步 index}`——以稳定的 step 索引而非展示位置标识分组，
+   * 这样历史数据更新后已展开的分组状态仍能正确保持。
+   */
+  expanded: Record<string, boolean>;
+}>();
 
 defineEmits<{
   /** 透传子组件 Bucket 的 toggle 事件给上层 panel，由其更新 expanded。 */
diff --git a/packages/editor/src/layouts/history-list/GroupRow.vue b/packages/editor/src/layouts/history-list/GroupRow.vue
index 4a7c7024..41b0a696 100644
--- a/packages/editor/src/layouts/history-list/GroupRow.vue
+++ b/packages/editor/src/layouts/history-list/GroupRow.vue
@@ -1,7 +1,7 @@
 <template>
   <li
     class="m-editor-history-list-item m-editor-history-list-group"
-    :class="{ 'is-undone': !applied, 'is-merged': merged, 'is-current': isCurrent }"
+    :class="{ 'is-undone': !group.applied, 'is-merged': merged, 'is-current': group.isCurrent }"
   >
     <div
       class="m-editor-history-list-group-head"
@@ -10,19 +10,24 @@
       @click="onHeadClick"
     >
       <span class="m-editor-history-list-item-index" :title="headIndexTitle">{{ headIndexLabel }}</span>
-      <span class="m-editor-history-list-item-op" :class="`op-${opType}`">{{ opLabel(opType) }}</span>
-      <span class="m-editor-history-list-item-desc">{{ desc }}</span>
+      <span class="m-editor-history-list-item-op" :class="`op-${group.opType}`">{{ opLabel(group.opType) }}</span>
+      <span class="m-editor-history-list-item-desc">{{ group.desc }}</span>
 
       <span v-if="headSaved" class="m-editor-history-list-item-saved" title="该记录为最近一次保存的状态">已保存</span>
 
       <span
-        v-if="!merged && sourceLabel(source)"
+        v-if="!merged && sourceLabel(group.source)"
         class="m-editor-history-list-item-source"
-        :title="`操作途径：${sourceLabel(source)}`"
-        >{{ sourceLabel(source) }}</span
+        :title="`操作途径：${sourceLabel(group.source)}`"
+        >{{ sourceLabel(group.source) }}</span
       >
 
-      <span v-if="!merged && time" class="m-editor-history-list-item-time" :title="timeTitle || time">{{ time }}</span>
+      <span
+        v-if="!merged && group.time"
+        class="m-editor-history-list-item-time"
+        :title="group.timeTitle || group.time"
+        >{{ group.time }}</span
+      >
 
       <span v-if="merged" class="m-editor-history-list-item-merge">合并 {{ stepCount }} 步</span>
 
@@ -30,21 +35,21 @@
         v-if="!merged && headRevertable"
         class="m-editor-history-list-item-revert"
         title="将该步骤的修改作为一次新操作反向应用（不影响后续历史）"
-        @click.stop="onRevertClick(subSteps[0].index)"
+        @click.stop="onRevertClick(group.subSteps[0].index)"
         >回滚</span
       >
       <span
-        v-if="!merged && gotoEnabled && !isCurrent && subSteps.length"
+        v-if="!merged && gotoEnabled && !group.isCurrent && group.subSteps.length"
         class="m-editor-history-list-item-goto"
         title="回到该记录"
-        @click.stop="onGotoClick(subSteps[0].index)"
+        @click.stop="onGotoClick(group.subSteps[0].index)"
         >回到</span
       >
       <span
         v-if="!merged && headDiffable"
         class="m-editor-history-list-item-diff"
         title="查看修改差异"
-        @click.stop="onDiffClick(subSteps[0].index)"
+        @click.stop="onDiffClick(group.subSteps[0].index)"
         >查看差异</span
       >
       <span v-if="merged" class="m-editor-history-list-group-toggle" :class="{ 'is-expanded': expanded }">▾</span>
@@ -96,8 +101,7 @@
 <script lang="ts" setup>
 import { computed } from 'vue';
 
-import type { HistoryOpSource, HistoryOpType } from '@editor/type';
-
+import type { HistoryRowGroup, HistoryRowStep } from './composables';
 import { opLabel, sourceLabel } from './composables';
 
 defineOptions({
@@ -106,46 +110,13 @@ defineOptions({
 
 const props = withDefaults(
   defineProps<{
-    /** 唯一标识当前组的 key，作为 toggle 事件的 payload 回传给上层。形如 `pg-${首步 index}` / `ds-${id}-${首步 index}` / `cb-${id}-${首步 index}`，以稳定的 step 索引标识分组。 */
-    groupKey: string;
-    /** 该组当前是否处于已应用状态（false 表示已被 undo 撤销，UI 会显示为灰态）。 */
-    applied: boolean;
-    /** 是否为合并组（即组内 step 数大于 1，由多次连续操作合并而来）。决定是否展示合并标记与可展开的子步列表。 */
-    merged: boolean;
-    /** 操作类型：`add` / `remove` / `update`，用于决定操作徽标的颜色和文案。 */
-    opType: HistoryOpType;
-    /** 组的整体描述文案，由上层根据 step / group 计算后传入，例如 "修改 button · style.color"。 */
-    desc: string;
-    /** 组的操作途径（一般取组内最近一步），用于头部展示「画布 / 树面板 / 配置面板…」标签。 */
-    source?: HistoryOpSource;
-    /** 组头部展示的时间文案（一般为组内最近一步的时间），为空时不渲染。 */
-    time?: string;
-    /** 组头部时间的 title 悬浮提示（完整时间），缺省时回退为 time。 */
-    timeTitle?: string;
-    /** 组内的 step 总数，仅在 merged 为 true 时显示为 "合并 N 步"。 */
-    stepCount: number;
-    /** 子步列表，用于在展开状态下逐条展示每个 step 的索引、应用状态与描述文案。 */
-    subSteps: {
-      index: number;
-      applied: boolean;
-      desc: string;
-      isCurrent?: boolean;
-      /** 该子步是否为最近一次保存的记录，用于展示「已保存」标记。 */
-      saved?: boolean;
-      diffable?: boolean;
-      /** 是否可对该子步执行「回滚」（已应用 + 业务侧确认支持反向）。父级根据 step 与 applied 决定。 */
-      revertable?: boolean;
-      /** 该子步的操作途径，用于展示「画布 / 树面板 / 配置面板…」标签。 */
-      source?: HistoryOpSource;
-      /** 该子步的时间文案，为空时不渲染。 */
-      time?: string;
-      /** 该子步时间的 title 悬浮提示（完整时间），缺省时回退为 time。 */
-      timeTitle?: string;
-    }[];
-    /** 当前组是否处于展开状态。仅在 merged 为 true 时生效，控制子步列表是否渲染。 */
+    /**
+     * 该组的视图模型（由 `toRowGroup` 统一派生）：包含 key、应用状态、操作类型、描述、
+     * 来源 / 时间等头部信息以及子步列表。原先散落的十余个扁平 props 收敛于此单一对象。
+     */
+    group: HistoryRowGroup;
+    /** 当前组是否处于展开状态。仅在合并组（子步数 > 1）时生效，控制子步列表是否渲染。 */
     expanded: boolean;
-    /** 是否为当前所在的分组（包含栈中最近一次已应用步骤的那一组），UI 高亮展示。 */
-    isCurrent?: boolean;
     /**
      * 是否支持「跳转到该记录」(goto)。默认 true。
      * 为 false 时：单步组头部与子步条目都不再可点击跳转、也不会触发 goto 事件，
@@ -154,21 +125,20 @@ const props = withDefaults(
     gotoEnabled?: boolean;
   }>(),
   {
-    isCurrent: false,
     gotoEnabled: true,
   },
 );
 
 const emit = defineEmits<{
   /**
-   * 用户点击合并组头部时触发，携带 groupKey；上层用其切换 expanded 状态。
+   * 用户点击合并组头部时触发，携带 group.key；上层用其切换 expanded 状态。
    * 对单步组（非合并）头部点击不会发该事件——因为单步组没有"展开"的概念。
    */
   (_e: 'toggle', _key: string): void;
   /**
    * 用户希望跳转到该记录时触发，携带"目标 step 在所属栈中的索引"——上层据此计算目标 cursor (= index + 1)。
    * 触发场景：
-   * - 单步组（merged=false）头部：取该唯一 step 的 index；
+   * - 单步组（非合并）头部：取该唯一 step 的 index；
    * - 子步条目：取该子步的 index。
    * 合并组头部不再触发 goto，避免与展开/收起冲突；用户应展开后点具体子步精准跳转。
    * 当前所在的步骤（isCurrent）始终不会触发 goto。
@@ -176,7 +146,7 @@ const emit = defineEmits<{
   (_e: 'goto', _index: number): void;
   /**
    * 用户希望查看该 step 的修改差异（旧值 vs 新值）。
-   * 只在 step 满足"前后值都存在"（如 update / 数据源、代码块的 update）时由父级标记 `diffable=true`。
+   * 只在 step 满足"前后值都存在"（如 update / 数据源、代码块的 update）时由 `toRowGroup` 标记 `diffable=true`。
    * payload 为该 step 在所属栈中的索引，由上层根据 index 取 step 内容并展示对比。
    */
   (_e: 'diff-step', _index: number): void;
@@ -187,15 +157,21 @@ const emit = defineEmits<{
   (_e: 'revert-step', _index: number): void;
 }>();
 
+/** 子步数大于 1 即为合并组：决定是否展示合并标记与可展开的子步列表。 */
+const merged = computed(() => props.group.subSteps.length > 1);
+
+/** 组内 step 总数，仅在合并组时显示为 "合并 N 步"。 */
+const stepCount = computed(() => props.group.subSteps.length);
+
 /**
  * 仅合并组头部可点击（切换展开 / 收起）；
- * 单步组的跳转改由头部的「回退」按钮触发，整行不再可点击。
+ * 单步组的跳转改由头部的「回到」按钮触发，整行不再可点击。
  */
-const isHeadClickable = computed(() => props.merged);
+const isHeadClickable = computed(() => merged.value);
 
 const headTitle = computed(() => {
-  if (props.merged) return props.expanded ? '点击收起子步' : '点击展开子步';
-  if (props.isCurrent) return '当前所在记录';
+  if (merged.value) return props.expanded ? '点击收起子步' : '点击展开子步';
+  if (props.group.isCurrent) return '当前所在记录';
   return '';
 });
 
@@ -203,8 +179,8 @@ const headTitle = computed(() => {
  * 头部点击行为：仅合并组切换展开 / 收起；单步组不再响应整行点击。
  */
 const onHeadClick = () => {
-  if (props.merged) {
-    emit('toggle', props.groupKey);
+  if (merged.value) {
+    emit('toggle', props.group.key);
   }
 };
 
@@ -224,43 +200,42 @@ const subStepTitle = (s: { isCurrent?: boolean }) => {
  * - 合并组：组内任一子步为已保存即在头部提示（具体落在哪一步可展开查看）。
  */
 const headSaved = computed(() =>
-  props.merged ? props.subSteps.some((s) => s.saved) : Boolean(props.subSteps[0]?.saved),
+  merged.value ? props.group.subSteps.some((s) => s.saved) : Boolean(props.group.subSteps[0]?.saved),
 );
 
 /** 单步组头部是否展示"查看差异"入口：要求该唯一子步本身可对比。 */
-const headDiffable = computed(() => !props.merged && Boolean(props.subSteps[0]?.diffable));
+const headDiffable = computed(() => !merged.value && Boolean(props.group.subSteps[0]?.diffable));
 
 /** 单步组头部是否展示"回滚"入口：要求该唯一子步本身可回滚（已应用）。 */
-const headRevertable = computed(() => !props.merged && Boolean(props.subSteps[0]?.revertable));
+const headRevertable = computed(() => !merged.value && Boolean(props.group.subSteps[0]?.revertable));
 
 /**
  * 合并组展开后的子步渲染顺序：与外层分组列表保持一致——倒序展示（最新的子步在最上方）。
  * 外层 page tab / bucket 都已对 groups 做了 reverse，子步沿用同样的视觉规则更直观。
  * 注意：仅用于渲染，原 `subSteps` 保持时间正序，`headIndexLabel` 等基于首尾索引的展示语义不变。
  */
-const subStepsDisplay = computed(() => props.subSteps.slice().reverse());
+const subStepsDisplay = computed<HistoryRowStep[]>(() => props.group.subSteps.slice().reverse());
 
 /**
  * 头部索引展示：
- * - 单步组（merged=false）：显示该唯一 step 的编号，如 `#5`；
+ * - 单步组（非合并）：显示该唯一 step 的编号，如 `#5`；
  * - 合并组：显示组内 step 的编号范围，如 `#3-#7`（首尾相同则退化为 `#5`）。
  *
  * 这里展示的是 step.index + 1（与子步列表 `#{{ s.index + 1 }}` 保持一致），从 1 起编号更符合直觉。
  */
 const headIndexLabel = computed(() => {
-  const list = props.subSteps;
+  const list = props.group.subSteps;
   if (!list.length) return '';
   const first = list[0].index + 1;
   const last = list[list.length - 1].index + 1;
-  if (!props.merged || first === last) return `#${first}`;
+  if (!merged.value || first === last) return `#${first}`;
   return `#${first}-#${last}`;
 });
 
 const headIndexTitle = computed(() => {
-  if (!props.merged) return `历史步骤编号 #${props.subSteps[0]?.index + 1}`;
-  return `合并了第 ${props.subSteps[0]?.index + 1} 至第 ${
-    props.subSteps[props.subSteps.length - 1]?.index + 1
-  } 共 ${props.subSteps.length} 条历史步骤`;
+  const list = props.group.subSteps;
+  if (!merged.value) return `历史步骤编号 #${list[0]?.index + 1}`;
+  return `合并了第 ${list[0]?.index + 1} 至第 ${list[list.length - 1]?.index + 1} 共 ${list.length} 条历史步骤`;
 });
 
 const onDiffClick = (index: number) => {
diff --git a/packages/editor/src/layouts/history-list/HistoryListPanel.vue b/packages/editor/src/layouts/history-list/HistoryListPanel.vue
index d0fcbf77..d10bd73e 100644
--- a/packages/editor/src/layouts/history-list/HistoryListPanel.vue
+++ b/packages/editor/src/layouts/history-list/HistoryListPanel.vue
@@ -38,14 +38,9 @@
           v-bind="tabPaneComponent?.props({ name: 'data-source', label: `数据源 (${dataSourceGroups.length})` }) || {}"
         >
           <BucketTab
-            title="数据源"
-            prefix="ds"
+            :config="dataSourceConfig"
             :buckets="dataSourceGroupsByTarget"
             :expanded="expanded"
-            :describe-group="describeDataSourceGroup"
-            :describe-step="describeDataSourceStep"
-            :is-step-diffable="isDataSourceStepDiffable"
-            :is-step-revertable="isDataSourceStepRevertable"
             @toggle="toggleGroup"
             @goto="onDataSourceGoto"
             @goto-initial="onDataSourceGotoInitial"
@@ -61,14 +56,9 @@
           v-bind="tabPaneComponent?.props({ name: 'code-block', label: `代码块 (${codeBlockGroups.length})` }) || {}"
         >
           <BucketTab
-            title="代码块"
-            prefix="cb"
+            :config="codeBlockConfig"
             :buckets="codeBlockGroupsByTarget"
             :expanded="expanded"
-            :describe-group="describeCodeBlockGroup"
-            :describe-step="describeCodeBlockStep"
-            :is-step-diffable="isCodeBlockStepDiffable"
-            :is-step-revertable="isCodeBlockStepRevertable"
             @toggle="toggleGroup"
             @goto="onCodeBlockGoto"
             @goto-initial="onCodeBlockGotoInitial"
@@ -148,6 +138,7 @@ import { useServices } from '@editor/hooks/use-services';
 import type { CodeBlockStepValue, DataSourceStepValue, DiffDialogPayload, HistoryListExtraTab } from '@editor/type';
 
 import BucketTab from './BucketTab.vue';
+import type { HistoryBucketConfig } from './composables';
 import {
   describeCodeBlockGroup,
   describeCodeBlockStep,
@@ -219,10 +210,34 @@ const {
 } = useHistoryList();
 
 /** 数据源 step 仅 update（前后 schema 都存在）时可查看差异。 */
-const isDataSourceStepDiffable = (step: DataSourceStepValue) => Boolean(step.oldSchema && step.newSchema);
+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.oldContent && step.newContent);
+const isCodeBlockStepDiffable = (step: CodeBlockStepValue) =>
+  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。
+ */
+const dataSourceConfig: HistoryBucketConfig<DataSourceStepValue> = {
+  title: '数据源',
+  prefix: 'ds',
+  describeGroup: describeDataSourceGroup,
+  describeStep: describeDataSourceStep,
+  isStepDiffable: isDataSourceStepDiffable,
+  isStepRevertable: isDataSourceStepRevertable,
+};
+
+const codeBlockConfig: HistoryBucketConfig<CodeBlockStepValue> = {
+  title: '代码块',
+  prefix: 'cb',
+  describeGroup: describeCodeBlockGroup,
+  describeStep: describeCodeBlockStep,
+  isStepDiffable: isCodeBlockStepDiffable,
+  isStepRevertable: isCodeBlockStepRevertable,
+};
 
 /** 把"目标 step 索引"翻译成"目标 cursor"（已应用步骤数量）。 */
 const indexToCursor = (index: number) => index + 1;
@@ -259,7 +274,7 @@ const diffDialogRef = useTemplateRef<InstanceType<typeof HistoryDiffDialog>>('di
 
 /**
  * 构造页面 step 的差异弹窗入参：仅 update 单节点修改可对比，传入旧/新节点。
- * 节点类型 `type` 优先取 newNode.type，再回退 oldNode.type。
+ * 节点类型 `type` 优先取 newSchema.type，再回退 oldSchema.type。
  * `currentValue` 取自 editorService 中该节点当前实际值，用于支持「与当前对比」。
  * 无可对比内容（如多节点 / add / remove）时返回 null。
  */
@@ -268,18 +283,18 @@ const buildPageDiffPayload = (index: number): DiffDialogPayload | null => {
   for (const group of groups) {
     const entry = group.steps.find((s) => s.index === index);
     if (!entry) continue;
-    const item = entry.step.updatedItems?.[0];
-    if (!item?.oldNode || !item?.newNode) return null;
-    const type = (item.newNode.type as string) || (item.oldNode.type as string) || '';
-    const nodeId = item.newNode.id ?? item.oldNode.id;
+    const item = entry.step.diff?.[0];
+    if (!item?.oldSchema || !item?.newSchema) return null;
+    const type = (item.newSchema.type as string) || (item.oldSchema.type as string) || '';
+    const nodeId = item.newSchema.id ?? item.oldSchema.id;
     const currentNode = nodeId !== undefined ? editorService.getNodeById(nodeId) : null;
     return {
       category: 'node',
       type,
-      lastValue: item.oldNode as Record<string, any>,
-      value: item.newNode as Record<string, any>,
+      lastValue: item.oldSchema as Record<string, any>,
+      value: item.newSchema as Record<string, any>,
       currentValue: (currentNode as Record<string, any>) || null,
-      targetLabel: (item.newNode.name as string) || (item.oldNode.name as string) || type,
+      targetLabel: (item.newSchema.name as string) || (item.oldSchema.name as string) || type,
       id: nodeId,
     };
   }
@@ -306,7 +321,9 @@ const findGroupStep = <G extends { id: string | number; steps: { index: number;
 };
 
 const buildDataSourceDiffPayload = (id: string | number, index: number): DiffDialogPayload | null =>
-  findGroupStep(historyService.getDataSourceHistoryGroups(), id, index, ({ oldSchema, newSchema }) => {
+  findGroupStep(historyService.getDataSourceHistoryGroups(), id, index, (step) => {
+    const oldSchema = step.diff?.[0]?.oldSchema;
+    const newSchema = step.diff?.[0]?.newSchema;
     if (!oldSchema || !newSchema) return null;
     const currentSchema = dataSourceService.getDataSourceById(`${id}`);
     return {
@@ -321,7 +338,9 @@ const buildDataSourceDiffPayload = (id: string | number, index: number): DiffDia
   });
 
 const buildCodeBlockDiffPayload = (id: string | number, index: number): DiffDialogPayload | null =>
-  findGroupStep(historyService.getCodeBlockHistoryGroups(), id, index, ({ oldContent, newContent }) => {
+  findGroupStep(historyService.getCodeBlockHistoryGroups(), id, index, (step) => {
+    const oldContent = step.diff?.[0]?.oldSchema;
+    const newContent = step.diff?.[0]?.newSchema;
     if (!oldContent || !newContent) return null;
     const currentContent = codeBlockService.getCodeContentById(id);
     return {
@@ -358,33 +377,36 @@ const onConfirmRevert = shallowRef();
  * 交互：先弹出该步骤的差异弹窗供用户确认，点击「确定回滚」后再真正执行回滚；
  * 对没有可对比内容的步骤（如 add / remove / 多节点更新）则直接回滚。
  */
-const onPageRevert = (index: number) => {
+const onPageRevert = async (index: number) => {
   const payload = buildPageDiffPayload(index);
-  onConfirmRevert.value = () => editorService.revertPageStep(index);
+  const revert = () => editorService.revertPageStep(index);
+  onConfirmRevert.value = revert;
   if (payload) {
     diffDialogRef.value?.open({ ...payload });
-  } else {
-    onConfirmRevert.value();
+  } else if (await confirmRevert()) {
+    revert();
   }
 };
 
-const onDataSourceRevert = (id: string | number, index: number) => {
+const onDataSourceRevert = async (id: string | number, index: number) => {
   const payload = buildDataSourceDiffPayload(id, index);
-  onConfirmRevert.value = () => dataSourceService.revert(id, index);
+  const revert = () => dataSourceService.revert(id, index);
+  onConfirmRevert.value = revert;
   if (payload) {
     diffDialogRef.value?.open({ ...payload });
-  } else {
-    onConfirmRevert.value();
+  } else if (await confirmRevert()) {
+    revert();
   }
 };
 
-const onCodeBlockRevert = (id: string | number, index: number) => {
+const onCodeBlockRevert = async (id: string | number, index: number) => {
   const payload = buildCodeBlockDiffPayload(id, index);
-  onConfirmRevert.value = () => codeBlockService.revert(id, index);
+  const revert = () => codeBlockService.revert(id, index);
+  onConfirmRevert.value = revert;
   if (payload) {
     diffDialogRef.value?.open({ ...payload });
-  } else {
-    onConfirmRevert.value();
+  } else if (await confirmRevert()) {
+    revert();
   }
 };
 
@@ -392,6 +414,14 @@ const onDiffDialogClose = () => {
   onConfirmRevert.value = undefined;
 };
 
+/**
+ * 「回滚」二次确认：新增 / 删除 / 多节点更新等无法做差异对比的步骤，
+ * 不弹差异弹窗，改用一个普通确认框替代「确定回滚」按钮，避免点击后无任何提示直接执行。
+ * 用户取消时返回 false，调用方据此中止回滚。
+ */
+const confirmRevert = (): Promise<boolean> =>
+  confirmClear('确定回滚该步骤吗？回滚会将该操作作为一条新记录反向应用（新增将被删除、删除将被还原），不影响后续历史记录。');
+
 /**
  * 「清空历史记录」入口：先弹出二次确认，确认后清空对应类别的历史栈。
  * 仅删除撤销/重做记录，不会改动当前 DSL / 数据源 / 代码块本身。
diff --git a/packages/editor/src/layouts/history-list/PageTab.vue b/packages/editor/src/layouts/history-list/PageTab.vue
index 13bb982d..16b17569 100644
--- a/packages/editor/src/layouts/history-list/PageTab.vue
+++ b/packages/editor/src/layouts/history-list/PageTab.vue
@@ -8,32 +8,9 @@
       <ul class="m-editor-history-list-ul">
         <GroupRow
           v-for="group in list"
-          :key="`pg-${group.steps[0]?.index}`"
-          :group-key="`pg-${group.steps[0]?.index}`"
-          :applied="group.applied"
-          :merged="group.steps.length > 1"
-          :op-type="group.opType"
-          :desc="describePageGroup(group)"
-          :source="groupSource(group)"
-          :time="formatHistoryTime(groupTimestamp(group))"
-          :time-title="formatHistoryFullTime(groupTimestamp(group))"
-          :step-count="group.steps.length"
-          :sub-steps="
-            group.steps.map((s) => ({
-              index: s.index,
-              applied: s.applied,
-              isCurrent: s.isCurrent,
-              saved: s.step.saved,
-              desc: describePageStep(s.step),
-              diffable: isPageStepDiffable(s.step),
-              revertable: s.applied && isPageStepRevertable(s.step),
-              source: s.step.source,
-              time: formatHistoryTime(s.step.timestamp),
-              timeTitle: formatHistoryFullTime(s.step.timestamp),
-            }))
-          "
-          :is-current="group.isCurrent"
-          :expanded="!!expanded[`pg-${group.steps[0]?.index}`]"
+          :key="rowKey(group)"
+          :group="toRow(group)"
+          :expanded="!!expanded[rowKey(group)]"
           @toggle="(key: string) => $emit('toggle', key)"
           @goto="(index: number) => $emit('goto', index)"
           @diff-step="(index: number) => $emit('diff-step', index)"
@@ -56,15 +33,8 @@ import { TMagicScrollbar } from '@tmagic/design';
 
 import type { PageHistoryGroup, StepValue } from '@editor/type';
 
-import {
-  describePageGroup,
-  describePageStep,
-  formatHistoryFullTime,
-  formatHistoryTime,
-  groupSource,
-  groupTimestamp,
-  isPageStepRevertable,
-} from './composables';
+import type { HistoryRowDescriptor, HistoryRowGroup } from './composables';
+import { describePageGroup, describePageStep, isPageStepRevertable, toRowGroup } from './composables';
 import GroupRow from './GroupRow.vue';
 import InitialRow from './InitialRow.vue';
 
@@ -101,16 +71,28 @@ defineEmits<{
 /**
  * 当前 step 是否可查看差异：
  * - 仅 update 操作；
- * - 单节点更新（updatedItems.length === 1），且 oldNode / newNode 都存在。
+ * - 单节点更新（diff.length === 1），且 oldSchema / newSchema 都存在。
  * 多节点更新难以选定单一对比目标，统一不展示差异入口。
  */
 const isPageStepDiffable = (step: StepValue): boolean => {
   if (step.opType !== 'update') return false;
-  const items = step.updatedItems ?? [];
+  const items = step.diff ?? [];
   if (items.length !== 1) return false;
-  return Boolean(items[0]?.oldNode && items[0]?.newNode);
+  return Boolean(items[0]?.oldSchema && items[0]?.newSchema);
 };
 
+/** 页面历史的描述 / 可操作性判定集合，注入给统一的 `toRowGroup`。 */
+const descriptor: HistoryRowDescriptor<StepValue> = {
+  describeGroup: describePageGroup,
+  describeStep: describePageStep,
+  isStepDiffable: isPageStepDiffable,
+  isStepRevertable: isPageStepRevertable,
+};
+
+const rowKey = (group: PageHistoryGroup) => `pg-${group.steps[0]?.index}`;
+
+const toRow = (group: PageHistoryGroup): HistoryRowGroup => toRowGroup(group, rowKey(group), descriptor);
+
 /**
  * 是否处于"初始状态"——即对应页面历史栈 cursor===0：
  * 当 list 中所有 group 的 applied 都为 false 时即为该状态。
diff --git a/packages/editor/src/layouts/history-list/composables.ts b/packages/editor/src/layouts/history-list/composables.ts
index a8054809..3b2ea8dc 100644
--- a/packages/editor/src/layouts/history-list/composables.ts
+++ b/packages/editor/src/layouts/history-list/composables.ts
@@ -30,6 +30,86 @@ export interface HistoryBucketGroup<T extends BaseStepValue = BaseStepValue> {
   steps: { index: number; applied: boolean; isCurrent?: boolean; step: T }[];
 }
 
+/**
+ * 一组「描述 + 可操作性」的判定函数集合。页面 / 数据源 / 代码块及业务自定义历史
+ * 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;
+  /** 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。 */
+  isStepDiffable?: (_step: T) => boolean;
+  /** 判断某个 step 是否支持回滚（如更新需带 changeRecords）。不传则已应用即可回滚。 */
+  isStepRevertable?: (_step: T) => boolean;
+}
+
+/**
+ * 通用 bucket（数据源 / 代码块 / 业务自定义历史）的整体渲染配置。
+ * 把原先散落在 Bucket / BucketTab 上的 title / prefix / describe* / isStep* / showInitial / gotoEnabled
+ * 收敛成一个对象作为单一 prop 传递，调用方一次配齐、组件内部按需读取。
+ */
+export interface HistoryBucketConfig<T extends BaseStepValue = BaseStepValue> extends HistoryRowDescriptor<T> {
+  /** bucket 头部标题，例如 "数据源" / "代码块"。 */
+  title: string;
+  /** 子项 key 的命名空间前缀（`ds` 数据源 / `cb` 代码块 / 业务自定义如 `mod`）。 */
+  prefix: string;
+  /** 是否展示底部「回到初始状态」入口，默认 true。无 undo cursor 语义的自定义历史可传 false。 */
+  showInitial?: boolean;
+  /** 是否支持「跳转到该记录」(goto)，默认 true。 */
+  gotoEnabled?: boolean;
+}
+
+/** GroupRow 渲染所需的单个子步视图模型（已由 {@link toRowGroup} 预先派生，组件内部不再触碰原始 step）。 */
+export interface HistoryRowStep {
+  /** 该子步在所属栈中的稳定索引。 */
+  index: number;
+  /** 是否已应用（false 表示已被 undo，UI 灰态）。 */
+  applied: boolean;
+  /** 是否为当前所在步骤。 */
+  isCurrent?: boolean;
+  /** 是否为最近一次保存的记录。 */
+  saved?: boolean;
+  /** 子步描述文案。 */
+  desc: string;
+  /** 是否可查看差异。 */
+  diffable?: boolean;
+  /** 是否可回滚。 */
+  revertable?: boolean;
+  /** 操作途径。 */
+  source?: HistoryOpSource;
+  /** 时间文案。 */
+  time?: string;
+  /** 时间的完整 title 提示。 */
+  timeTitle?: string;
+}
+
+/**
+ * GroupRow 渲染所需的整组视图模型（由 {@link toRowGroup} 统一派生）。
+ * 把原先 GroupRow 上十多个扁平 props 收敛为单一对象，header 信息与子步列表一并携带。
+ */
+export interface HistoryRowGroup {
+  /** 分组的稳定 key，作为 toggle 事件 payload 与折叠状态的索引。 */
+  key: string;
+  /** 组内最后一步是否已应用。 */
+  applied: boolean;
+  /** 是否为当前所在分组。 */
+  isCurrent: boolean;
+  /** 操作类型，用于徽标颜色与文案。 */
+  opType: HistoryOpType;
+  /** 组整体描述文案。 */
+  desc: string;
+  /** 组的操作途径（取组内最近一步）。 */
+  source?: HistoryOpSource;
+  /** 组头部时间文案（取组内最近一步）。 */
+  time?: string;
+  /** 组头部时间的完整 title 提示。 */
+  timeTitle?: string;
+  /** 子步列表（时间正序）；其长度即合并步数，length > 1 即为合并组。 */
+  subSteps: HistoryRowStep[];
+}
+
 /**
  * 历史记录面板共享逻辑：
  * - 暴露三类历史的聚合数据（页面 / 数据源 / 代码块）；
@@ -150,7 +230,51 @@ export const sourceLabel = (source: HistoryOpSource = 'unknown'): string => {
 export const groupSource = (group: { steps: { step: { source?: HistoryOpSource } }[] }): HistoryOpSource | undefined =>
   group.steps[group.steps.length - 1]?.step.source;
 
-const nameOf = (node: { name?: string; id?: string | number; type?: string }) =>
+/** {@link toRowGroup} 接受的最小分组结构，PageHistoryGroup 与 HistoryBucketGroup 均满足。 */
+interface RowGroupInput<T extends BaseStepValue = BaseStepValue> {
+  applied: boolean;
+  isCurrent?: boolean;
+  opType: HistoryOpType;
+  steps: { index: number; applied: boolean; isCurrent?: boolean; step: T }[];
+}
+
+/**
+ * 把一个历史分组（页面 / bucket）派生为 GroupRow 直接消费的视图模型 {@link HistoryRowGroup}。
+ * 统一了原先 PageTab / Bucket 各自内联的 sub-steps 映射逻辑：描述、可差异、可回滚、时间、途径
+ * 全部在此一次性算好，组件层只负责渲染。
+ */
+export const toRowGroup = <T extends BaseStepValue = BaseStepValue>(
+  group: RowGroupInput<T>,
+  key: string,
+  descriptor: HistoryRowDescriptor<T>,
+): HistoryRowGroup => {
+  const { describeGroup, describeStep, isStepDiffable, isStepRevertable } = descriptor;
+  const timestamp = groupTimestamp(group);
+  return {
+    key,
+    applied: group.applied,
+    isCurrent: Boolean(group.isCurrent),
+    opType: group.opType,
+    desc: describeGroup(group),
+    source: groupSource(group),
+    time: formatHistoryTime(timestamp),
+    timeTitle: formatHistoryFullTime(timestamp),
+    subSteps: group.steps.map((s) => ({
+      index: s.index,
+      applied: s.applied,
+      isCurrent: s.isCurrent,
+      saved: s.step.saved,
+      desc: describeStep(s.step),
+      diffable: isStepDiffable ? isStepDiffable(s.step) : false,
+      revertable: s.applied && (isStepRevertable ? isStepRevertable(s.step) : true),
+      source: s.step.source,
+      time: formatHistoryTime(s.step.timestamp),
+      timeTitle: formatHistoryFullTime(s.step.timestamp),
+    })),
+  };
+};
+
+const nameOf = (node?: { name?: string; id?: string | number; type?: string }) =>
   node?.name || node?.type || `${node?.id ?? ''}`;
 
 /**
@@ -175,25 +299,25 @@ const pickLastDescription = (descs: (string | undefined)[]): string | undefined
 export const describePageStep = (step: StepValue) => {
   if (step.historyDescription) return step.historyDescription;
   const { opType } = step;
+  const items = step.diff ?? [];
   if (opType === 'add') {
-    const count = step.nodes?.length ?? 0;
-    const node = step.nodes?.[0];
+    const count = items.length;
+    const node = items[0]?.newSchema;
     return `新增 ${count} 个节点${count === 1 && node ? `（${labelWithId(nameOf(node), node.id)}）` : ''}`;
   }
   if (opType === 'remove') {
-    const count = step.removedItems?.length ?? 0;
-    const node = step.removedItems?.[0]?.node;
+    const count = items.length;
+    const node = items[0]?.oldSchema;
     return `删除 ${count} 个节点${count === 1 && node ? `（${labelWithId(nameOf(node), node.id)}）` : ''}`;
   }
-  const updated = step.updatedItems ?? [];
-  if (!updated.length) return '修改节点';
-  if (updated.length === 1) {
-    const { newNode, changeRecords } = updated[0];
+  if (!items.length) return '修改节点';
+  if (items.length === 1) {
+    const { newSchema, changeRecords } = items[0];
     const propPath = changeRecords?.[0]?.propPath;
-    const target = labelWithId(nameOf(newNode), newNode?.id);
+    const target = labelWithId(nameOf(newSchema), newSchema?.id);
     return `修改 ${target}${propPath ? ` · ${propPath}` : ''}`;
   }
-  return `修改 ${updated.length} 个节点`;
+  return `修改 ${items.length} 个节点`;
 };
 
 /**
@@ -208,7 +332,7 @@ export const describePageGroup = (group: PageHistoryGroup) => {
   if (group.steps.length === 1) return describePageStep(group.steps[0].step);
   const paths = new Set<string>();
   group.steps.forEach((s) => {
-    s.step.updatedItems?.[0]?.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
+    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(
@@ -220,12 +344,11 @@ export const describePageGroup = (group: PageHistoryGroup) => {
 
 export const describeDataSourceStep = (step: DataSourceStepValue) => {
   if (step.historyDescription) return step.historyDescription;
-  if (step.oldSchema === null && step.newSchema)
-    return `创建 ${labelWithId(step.newSchema.title, step.newSchema.id ?? step.id)}`;
-  if (step.newSchema === null && step.oldSchema)
-    return `删除 ${labelWithId(step.oldSchema.title, step.oldSchema.id ?? step.id)}`;
-  const propPath = step.changeRecords?.[0]?.propPath;
-  const title = labelWithId(step.newSchema?.title || step.oldSchema?.title, step.id);
+  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}`;
 };
 
@@ -235,22 +358,23 @@ export const describeDataSourceGroup = (group: DataSourceHistoryGroup) => {
   if (group.steps.length === 1) return describeDataSourceStep(group.steps[0].step);
   const paths = new Set<string>();
   group.steps.forEach((s) => {
-    s.step.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
+    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.newSchema?.title || group.steps[0].step.oldSchema?.title;
+  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;
-  if (step.oldContent === null && step.newContent)
-    return `创建 ${labelWithId(step.newContent.name, step.newContent.id ?? step.id)}`;
-  if (step.newContent === null && step.oldContent)
-    return `删除 ${labelWithId(step.oldContent.name, step.oldContent.id ?? step.id)}`;
-  const propPath = step.changeRecords?.[0]?.propPath;
-  const title = labelWithId(step.newContent?.name || step.oldContent?.name, step.id);
+  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}`;
 };
 
@@ -260,10 +384,12 @@ export const describeCodeBlockGroup = (group: CodeBlockHistoryGroup) => {
   if (group.steps.length === 1) return describeCodeBlockStep(group.steps[0].step);
   const paths = new Set<string>();
   group.steps.forEach((s) => {
-    s.step.changeRecords?.forEach((r) => r.propPath && paths.add(r.propPath));
+    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.newContent?.name || group.steps[0].step.oldContent?.name;
+  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}`;
 };
@@ -276,27 +402,29 @@ export const describeCodeBlockGroup = (group: CodeBlockHistoryGroup) => {
  */
 export const isPageStepRevertable = (step: StepValue): boolean => {
   if (step.opType !== 'update') return true;
-  const items = step.updatedItems ?? [];
+  const items = step.diff ?? [];
   if (!items.length) return false;
   return items.every((item) => Boolean(item.changeRecords?.length));
 };
 
 /**
  * 数据源 step 是否支持「回滚」：
- * - 新增（oldSchema=null）/ 删除（newSchema=null）：不依赖 changeRecords，始终可回滚；
+ * - 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。
  */
 export const isDataSourceStepRevertable = (step: DataSourceStepValue): boolean => {
-  if (step.oldSchema === null || step.newSchema === null) return true;
-  return Boolean(step.changeRecords?.length);
+  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（oldContent=null）/ 删除（newContent=null）：不依赖 changeRecords，始终可回滚；
+ * - 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 => {
-  if (step.oldContent === null || step.newContent === null) return true;
-  return Boolean(step.changeRecords?.length);
+  const item = step.diff?.[0];
+  if (!item?.oldSchema || !item?.newSchema) return true;
+  return Boolean(item.changeRecords?.length);
 };
diff --git a/packages/editor/src/services/codeBlock.ts b/packages/editor/src/services/codeBlock.ts
index 159ff0e6..9c7a686f 100644
--- a/packages/editor/src/services/codeBlock.ts
+++ b/packages/editor/src/services/codeBlock.ts
@@ -38,6 +38,7 @@ import type {
 import { CODE_DRAFT_STORAGE_KEY } from '@editor/type';
 import { getEditorConfig } from '@editor/utils/config';
 import { COPY_CODE_STORAGE_KEY } from '@editor/utils/editor';
+import { describeRevertStep } from '@editor/utils/history';
 
 import BaseService from './BaseService';
 
@@ -48,18 +49,6 @@ const canUsePluginMethods = {
 
 type AsyncMethodName = Writable<(typeof canUsePluginMethods)['async']>;
 
-/**
- * 「回滚」生成的新 step 简短描述。仅 service 层使用。
- */
-const describeRevertCodeBlockStep = (step: CodeBlockStepValue): string => {
-  const { oldContent, newContent, changeRecords, id } = step;
-  if (oldContent === null && newContent) return `撤回新增 ${newContent.name || newContent.id || id}`;
-  if (oldContent && newContent === null) return `还原已删除的 ${oldContent.name || oldContent.id || id}`;
-  const name = newContent?.name || oldContent?.name || `${id}`;
-  const propPath = changeRecords?.[0]?.propPath;
-  return propPath ? `还原 ${name} · ${propPath}` : `还原 ${name}`;
-};
-
 class CodeBlock extends BaseService {
   private state = reactive<CodeState>({
     codeDsl: null,
@@ -458,8 +447,10 @@ class CodeBlock extends BaseService {
     const entry = list[index];
     if (!entry?.applied) return null;
     // 更新类步骤（前后 content 都存在）必须带 changeRecords 才支持回滚，否则只能整内容替换，会冲掉后续无关变更。
-    if (entry.step.oldContent && entry.step.newContent && !entry.step.changeRecords?.length) return null;
-    const description = `回滚 #${index + 1}: ${describeRevertCodeBlockStep(entry.step)}`;
+    const { oldSchema, newSchema, changeRecords } = entry.step.diff?.[0] ?? {};
+
+    if (oldSchema && newSchema && !changeRecords?.length) return null;
+    const description = `回滚 #${index + 1}: ${describeRevertStep<CodeBlockContent>(entry.step.id, entry.step.diff?.[0], (s) => s.name)}`;
     return await this.applyRevertStep(entry.step, description);
   }
 
@@ -567,21 +558,22 @@ class CodeBlock extends BaseService {
     step: CodeBlockStepValue,
     historyDescription: string,
   ): Promise<CodeBlockStepValue | null> {
-    const { id, oldContent, newContent, changeRecords } = step;
+    const { id } = step;
+    const { oldSchema, newSchema, changeRecords } = step.diff?.[0] ?? {};
 
     // 原本是新增 → revert 即删除
-    if (oldContent === null && newContent) {
+    if (!oldSchema && newSchema) {
       await this.deleteCodeDslByIds([id], { historyDescription, historySource: 'rollback' });
       return historyService.getCodeBlockStepList(id).slice(-1)[0]?.step ?? null;
     }
 
     // 原本是删除 → revert 即写回
-    if (oldContent && newContent === null) {
-      this.setCodeDslByIdSync(id, cloneDeep(oldContent), true, { historyDescription, historySource: 'rollback' });
+    if (oldSchema && !newSchema) {
+      this.setCodeDslByIdSync(id, cloneDeep(oldSchema), true, { historyDescription, historySource: 'rollback' });
       return historyService.getCodeBlockStepList(id).slice(-1)[0]?.step ?? null;
     }
 
-    if (!oldContent || !newContent) return null;
+    if (!oldSchema || !newSchema) return null;
 
     // 原本是更新 → 把 oldContent 写回；优先按 changeRecords 局部 patch
     if (changeRecords?.length) {
@@ -594,10 +586,10 @@ class CodeBlock extends BaseService {
           fallbackToFullReplace = true;
           break;
         }
-        const value = cloneDeep(getValueByKeyPath(record.propPath, oldContent));
+        const value = cloneDeep(getValueByKeyPath(record.propPath, oldSchema));
         setValueByKeyPath(record.propPath, value, patched);
       }
-      this.setCodeDslByIdSync(id, fallbackToFullReplace ? cloneDeep(oldContent) : patched, true, {
+      this.setCodeDslByIdSync(id, fallbackToFullReplace ? cloneDeep(oldSchema) : patched, true, {
         changeRecords,
         historyDescription,
         historySource: 'rollback',
@@ -605,7 +597,7 @@ class CodeBlock extends BaseService {
       return historyService.getCodeBlockStepList(id).slice(-1)[0]?.step ?? null;
     }
 
-    this.setCodeDslByIdSync(id, cloneDeep(oldContent), true, { historyDescription, historySource: 'rollback' });
+    this.setCodeDslByIdSync(id, cloneDeep(oldSchema), true, { historyDescription, historySource: 'rollback' });
     return historyService.getCodeBlockStepList(id).slice(-1)[0]?.step ?? null;
   }
 
@@ -624,31 +616,32 @@ class CodeBlock extends BaseService {
    * @param reverse true=撤销，false=重做
    */
   private async applyHistoryStep(step: CodeBlockStepValue, reverse: boolean): Promise<void> {
-    const { id, oldContent, newContent, changeRecords } = step;
+    const { id } = step;
+    const { oldSchema, newSchema, changeRecords } = step.diff?.[0] ?? {};
 
     // 新增 / 删除：直接 set 或 delete，不走 patch 逻辑
-    if (oldContent === null && newContent) {
+    if (!oldSchema && newSchema) {
       if (reverse) {
         await this.deleteCodeDslByIds([id], { doNotPushHistory: true });
       } else {
-        this.setCodeDslByIdSync(id, cloneDeep(newContent), true, { doNotPushHistory: true });
+        this.setCodeDslByIdSync(id, cloneDeep(newSchema), true, { doNotPushHistory: true });
       }
       return;
     }
 
-    if (oldContent && newContent === null) {
+    if (oldSchema && !newSchema) {
       if (reverse) {
-        this.setCodeDslByIdSync(id, cloneDeep(oldContent), true, { doNotPushHistory: true });
+        this.setCodeDslByIdSync(id, cloneDeep(oldSchema), true, { doNotPushHistory: true });
       } else {
         await this.deleteCodeDslByIds([id], { doNotPushHistory: true });
       }
       return;
     }
 
-    if (!oldContent || !newContent) return;
+    if (!oldSchema || !newSchema) return;
 
     // 更新场景：优先按 changeRecords 局部 patch；缺省退化为整内容替换
-    const sourceForValues = reverse ? oldContent : newContent;
+    const sourceForValues = reverse ? oldSchema : newSchema;
 
     if (changeRecords?.length) {
       const current = this.getCodeContentById(id);
diff --git a/packages/editor/src/services/dataSource.ts b/packages/editor/src/services/dataSource.ts
index bf734767..0d94ae84 100644
--- a/packages/editor/src/services/dataSource.ts
+++ b/packages/editor/src/services/dataSource.ts
@@ -19,6 +19,7 @@ import type {
 } from '@editor/type';
 import { getFormConfig, getFormValue } from '@editor/utils/data-source';
 import { COPY_DS_STORAGE_KEY } from '@editor/utils/editor';
+import { describeRevertStep } from '@editor/utils/history';
 
 import BaseService from './BaseService';
 
@@ -54,19 +55,6 @@ const canUsePluginMethods = {
 
 type SyncMethodName = Writable<(typeof canUsePluginMethods)['sync']>;
 
-/**
- * 「回滚」生成的新 step 简短描述。
- * 仅在 service 层使用，避免依赖 UI 层 composables。
- */
-const describeRevertDataSourceStep = (step: DataSourceStepValue): string => {
-  const { oldSchema, newSchema, changeRecords, id } = step;
-  if (oldSchema === null && newSchema) return `撤回新增 ${newSchema.title || newSchema.id || id}`;
-  if (oldSchema && newSchema === null) return `还原已删除的 ${oldSchema.title || oldSchema.id || id}`;
-  const title = newSchema?.title || oldSchema?.title || `${id}`;
-  const propPath = changeRecords?.[0]?.propPath;
-  return propPath ? `还原 ${title} · ${propPath}` : `还原 ${title}`;
-};
-
 class DataSource extends BaseService {
   private state = reactive<State>({
     datasourceTypeList: [],
@@ -342,8 +330,9 @@ class DataSource extends BaseService {
     const entry = list[index];
     if (!entry?.applied) return null;
     // 更新类步骤（前后 schema 都存在）必须带 changeRecords 才支持回滚，否则只能整 schema 替换，会冲掉后续无关变更。
-    if (entry.step.oldSchema && entry.step.newSchema && !entry.step.changeRecords?.length) return null;
-    const description = `回滚 #${index + 1}: ${describeRevertDataSourceStep(entry.step)}`;
+    const { oldSchema, newSchema, changeRecords } = entry.step.diff?.[0] ?? {};
+    if (oldSchema && newSchema && !changeRecords?.length) return null;
+    const description = `回滚 #${index + 1}: ${describeRevertStep<DataSourceSchema>(entry.step.id, entry.step.diff?.[0], (s) => s.title)}`;
     return this.applyRevertStep(entry.step, description);
   }
 
@@ -441,16 +430,17 @@ class DataSource extends BaseService {
    * 同构，差异仅在于走对应的公共 add / update / remove 而不是带 doNotPushHistory 的版本。
    */
   private applyRevertStep(step: DataSourceStepValue, historyDescription: string): DataSourceStepValue | null {
-    const { id, oldSchema, newSchema, changeRecords } = step;
+    const { id } = step;
+    const { oldSchema, newSchema, changeRecords } = step.diff?.[0] ?? {};
 
     // 原本是新增 → revert 即删除
-    if (oldSchema === null && newSchema) {
+    if (!oldSchema && newSchema) {
       this.remove(`${id}`, { historyDescription, historySource: 'rollback' });
       return historyService.getDataSourceStepList(id).slice(-1)[0]?.step ?? null;
     }
 
     // 原本是删除 → revert 即重新加回
-    if (oldSchema && newSchema === null) {
+    if (oldSchema && !newSchema) {
       this.add(cloneDeep(oldSchema), { historyDescription, historySource: 'rollback' });
       return historyService.getDataSourceStepList(id).slice(-1)[0]?.step ?? null;
     }
@@ -498,10 +488,11 @@ class DataSource extends BaseService {
    * @param reverse true=撤销，false=重做
    */
   private applyHistoryStep(step: DataSourceStepValue, reverse: boolean): void {
-    const { id, oldSchema, newSchema, changeRecords } = step;
+    const { id } = step;
+    const { oldSchema, newSchema, changeRecords } = step.diff?.[0] ?? {};
 
     // 新增 / 删除：直接 add 或 remove，不走 patch 逻辑
-    if (oldSchema === null && newSchema) {
+    if (!oldSchema && newSchema) {
       if (reverse) {
         this.remove(`${id}`, { doNotPushHistory: true });
       } else {
@@ -510,7 +501,7 @@ class DataSource extends BaseService {
       return;
     }
 
-    if (oldSchema && newSchema === null) {
+    if (oldSchema && !newSchema) {
       if (reverse) {
         this.add(cloneDeep(oldSchema), { doNotPushHistory: true });
       } else {
diff --git a/packages/editor/src/services/editor.ts b/packages/editor/src/services/editor.ts
index a157d623..4714fbaf 100644
--- a/packages/editor/src/services/editor.ts
+++ b/packages/editor/src/services/editor.ts
@@ -47,6 +47,7 @@ import type {
   HistoryOpSource,
   HistoryOpType,
   PastePosition,
+  StepDiffItem,
   StepValue,
   StoreState,
   StoreStateKey,
@@ -80,25 +81,26 @@ type MoveItem = { node: MNode; parent: MContainer; pageForOp: { name: string; id
  * 与 UI 层 `describePageStep` 同义，但避免 service 反向依赖 layouts/，故在此本地实现。
  */
 const describeStepForRevert = (step: StepValue): string => {
+  const items = step.diff ?? [];
   switch (step.opType) {
     case 'add': {
-      const count = step.nodes?.length ?? 0;
-      const node = step.nodes?.[0];
+      const count = items.length;
+      const node = items[0]?.newSchema;
       const label = node?.name || node?.type || (node?.id !== undefined ? `${node.id}` : '');
       return `撤回新增 ${count} 个节点${count === 1 && label ? `（${label}）` : ''}`;
     }
     case 'remove': {
-      const count = step.removedItems?.length ?? 0;
-      const node = step.removedItems?.[0]?.node;
+      const count = items.length;
+      const node = items[0]?.oldSchema;
       const label = node?.name || node?.type || (node?.id !== undefined ? `${node.id}` : '');
       return `还原已删除的 ${count} 个节点${count === 1 && label ? `（${label}）` : ''}`;
     }
     case 'update':
     default: {
-      const items = step.updatedItems ?? [];
       if (items.length === 1) {
-        const { newNode, oldNode, changeRecords } = items[0];
-        const target = newNode?.name || newNode?.type || oldNode?.name || oldNode?.type || `${newNode?.id ?? ''}`;
+        const { newSchema, oldSchema, changeRecords } = items[0];
+        const target =
+          newSchema?.name || newSchema?.type || oldSchema?.name || oldSchema?.type || `${newSchema?.id ?? ''}`;
         const propPath = changeRecords?.[0]?.propPath;
         return propPath ? `还原 ${target} · ${propPath}` : `还原 ${target}`;
       }
@@ -107,6 +109,20 @@ const describeStepForRevert = (step: StepValue): string => {
   }
 };
 
+/**
+ * 把「变更前后节点快照」列表归一成 update 类型的 {@link StepDiffItem} 列表，供 {@link StepValue.diff} 使用。
+ * `changeRecords` 来自 form 端的 propPath/value 列表，撤销/重做时只对这些 propPath 做局部更新；
+ * 缺省（未传 / 空数组）才退化为整节点替换。
+ */
+const buildUpdateDiff = (
+  items: { oldNode: MNode; newNode: MNode; changeRecords?: ChangeRecord[] }[],
+): StepDiffItem<MNode>[] =>
+  items.map(({ oldNode, newNode, changeRecords }) => ({
+    oldSchema: oldNode,
+    newSchema: newNode,
+    ...(changeRecords?.length ? { changeRecords } : {}),
+  }));
+
 class Editor extends BaseService {
   public state: StoreState = reactive({
     root: null,
@@ -487,17 +503,17 @@ class Editor extends BaseService {
     if (!(isPage(newNodes[0]) || isPageFragment(newNodes[0]))) {
       const pageForOp = this.getNodeInfo(newNodes[0].id, false).page;
       if (!doNotPushHistory) {
+        const parentId = (this.getParentById(newNodes[0].id, false) ?? this.get('root'))!.id;
         this.pushOpHistory('add', {
-          extra: {
-            nodes: newNodes.map((n) => cloneDeep(toRaw(n))),
-            parentId: (this.getParentById(newNodes[0].id, false) ?? this.get('root'))!.id,
-            indexMap: Object.fromEntries(
-              newNodes.map((n) => {
-                const p = this.getParentById(n.id, false) as MContainer;
-                return [n.id, p ? getNodeIndex(n.id, p) : -1];
-              }),
-            ),
-          },
+          diff: newNodes.map((n) => {
+            const p = this.getParentById(n.id, false) as MContainer;
+            const idx = p ? getNodeIndex(n.id, p) : -1;
+            return {
+              newSchema: cloneDeep(toRaw(n)),
+              parentId,
+              index: typeof idx === 'number' ? idx : -1,
+            };
+          }),
           pageData: { name: pageForOp?.name || '', id: pageForOp!.id },
           historyDescription,
           source: historySource,
@@ -610,7 +626,7 @@ class Editor extends BaseService {
 
     const nodes = Array.isArray(nodeOrNodeList) ? nodeOrNodeList : [nodeOrNodeList];
 
-    const removedItems: { node: MNode; parentId: Id; index: number }[] = [];
+    const removedItems: StepDiffItem<MNode>[] = [];
     let pageForOp: { name: string; id: Id } | null = null;
     if (!(isPage(nodes[0]) || isPageFragment(nodes[0]))) {
       for (const n of nodes) {
@@ -621,7 +637,7 @@ class Editor extends BaseService {
           }
           const idx = getNodeIndex(curNode.id, parent);
           removedItems.push({
-            node: cloneDeep(toRaw(curNode)),
+            oldSchema: cloneDeep(toRaw(curNode)),
             parentId: parent.id,
             index: typeof idx === 'number' ? idx : -1,
           });
@@ -634,7 +650,7 @@ class Editor extends BaseService {
     if (removedItems.length > 0 && pageForOp) {
       if (!doNotPushHistory) {
         this.pushOpHistory('remove', {
-          extra: { removedItems },
+          diff: removedItems,
           pageData: pageForOp,
           historyDescription,
           source: historySource,
@@ -760,15 +776,15 @@ class Editor extends BaseService {
         if (!doNotPushHistory) {
           const pageForOp = this.getNodeInfo(nodes[0].id, false).page;
           this.pushOpHistory('update', {
-            extra: {
-              updatedItems: updateData.map((d) => ({
+            // 每个节点单独保留自己的 changeRecords，便于撤销/重做时按 propPath 精细化更新；
+            // 没有 changeRecords 的（如内部 sort/moveLayer 等整节点替换操作）会退化为全节点替换。
+            diff: buildUpdateDiff(
+              updateData.map((d) => ({
                 oldNode: cloneDeep(d.oldNode),
-                newNode: cloneDeep(toRaw(d.newNode)),
-                // 每个节点单独保留自己的 changeRecords，便于撤销/重做时按 propPath 精细化更新；
-                // 没有 changeRecords 的（如内部 sort/moveLayer 等整节点替换操作）会退化为全节点替换。
+                newNode: cloneDeep(d.newNode),
                 changeRecords: d.changeRecords?.length ? cloneDeep(d.changeRecords) : undefined,
               })),
-            },
+            ),
             pageData: { name: pageForOp?.name || '', id: pageForOp!.id },
             historyDescription,
             source: historySource,
@@ -1010,9 +1026,7 @@ class Editor extends BaseService {
         'update',
 
         {
-          extra: {
-            updatedItems: [{ oldNode: oldParent, newNode: cloneDeep(toRaw(parent)) }],
-          },
+          diff: buildUpdateDiff([{ oldNode: oldParent, newNode: cloneDeep(toRaw(parent)) }]),
           pageData: { name: pageForOp?.name || '', id: pageForOp!.id },
           historyDescription,
           source: historySource,
@@ -1112,7 +1126,7 @@ class Editor extends BaseService {
       }));
       const historyPage = moves[0].pageForOp ?? { name: '', id: target.id };
       this.pushOpHistory('update', {
-        extra: { updatedItems },
+        diff: buildUpdateDiff(updatedItems),
         pageData: historyPage,
         historyDescription,
         source: historySource,
@@ -1192,7 +1206,7 @@ class Editor extends BaseService {
     if (!doNotPushHistory) {
       const pageForOp = this.getNodeInfo(configs[0].id, false).page;
       this.pushOpHistory('update', {
-        extra: { updatedItems },
+        diff: buildUpdateDiff(updatedItems),
         pageData: { name: pageForOp?.name || '', id: pageForOp!.id },
         historyDescription,
         source: historySource,
@@ -1335,7 +1349,7 @@ class Editor extends BaseService {
 
     // 更新类步骤必须带 changeRecords 才支持回滚：缺失时只能整节点替换，会冲掉后续无关变更，故不支持。
     if (step.opType === 'update') {
-      const items = step.updatedItems ?? [];
+      const items = step.diff ?? [];
       if (!items.length || !items.every((item) => item.changeRecords?.length)) return null;
     }
 
@@ -1354,9 +1368,9 @@ class Editor extends BaseService {
       switch (step.opType) {
         case 'add': {
           // 原本是新增 → revert 即删除当时被加入的节点
-          const nodes = step.nodes ?? [];
-          for (const n of nodes) {
-            const existing = this.getNodeById(n.id, false);
+          for (const { newSchema } of step.diff ?? []) {
+            if (!newSchema) continue;
+            const existing = this.getNodeById(newSchema.id, false);
             if (existing) {
               await this.remove(existing, opts);
             }
@@ -1366,35 +1380,40 @@ class Editor extends BaseService {
         case 'remove': {
           // 原本是删除 → revert 即把节点按原父容器加回来。
           // 按原 index 升序逐个插回，先小后大避免索引漂移。
-          const items = step.removedItems ?? [];
-          const sorted = [...items].sort((a, b) => a.index - b.index);
-          for (const { node, parentId } of sorted) {
+          const items = step.diff ?? [];
+          const sorted = [...items].sort((a, b) => (a.index ?? 0) - (b.index ?? 0));
+          for (const { oldSchema, parentId } of sorted) {
+            if (!oldSchema || parentId === undefined) continue;
             const parent = this.getNodeById(parentId, false) as MContainer | null;
             if (parent) {
-              await this.add([cloneDeep(node)] as MNode[], parent, opts);
+              await this.add([cloneDeep(oldSchema)] as MNode[], parent, opts);
             }
           }
           break;
         }
         case 'update': {
-          // 原本是更新 → revert 即把 oldNode 的值写回；
+          // 原本是更新 → revert 即把 oldSchema 的值写回；
           // 优先按 changeRecords 局部 patch（仅触达 propPath 下的字段，避免冲掉同节点上其它无关变更）。
-          const items = step.updatedItems ?? [];
-          const configs = items.map(({ oldNode, newNode, changeRecords }) => {
-            if (changeRecords?.length) {
-              const patch: MNode = { id: newNode.id, type: newNode.type };
-              for (const record of changeRecords) {
-                if (!record.propPath) {
-                  // 没有 propPath 视为整节点替换
-                  return cloneDeep(oldNode);
+          const items = step.diff ?? [];
+          const configs = items
+            .filter((item) => item.oldSchema && item.newSchema)
+            .map(({ oldSchema, newSchema, changeRecords }) => {
+              const oldNode = oldSchema!;
+              const newNode = newSchema!;
+              if (changeRecords?.length) {
+                const patch: MNode = { id: newNode.id, type: newNode.type };
+                for (const record of changeRecords) {
+                  if (!record.propPath) {
+                    // 没有 propPath 视为整节点替换
+                    return cloneDeep(oldNode);
+                  }
+                  const value = cloneDeep(getValueByKeyPath(record.propPath, oldNode));
+                  setValueByKeyPath(record.propPath, value, patch);
                 }
-                const value = cloneDeep(getValueByKeyPath(record.propPath, oldNode));
-                setValueByKeyPath(record.propPath, value, patch);
+                return patch;
               }
-              return patch;
-            }
-            return cloneDeep(oldNode);
-          });
+              return cloneDeep(oldNode);
+            });
           if (configs.length) {
             await this.update(configs, { historyDescription, historySource: 'rollback' });
           }
@@ -1527,12 +1546,12 @@ class Editor extends BaseService {
   private pushOpHistory(
     opType: HistoryOpType,
     {
-      extra,
+      diff,
       pageData,
       historyDescription,
       source,
     }: {
-      extra: Partial<StepValue>;
+      diff: StepDiffItem<MNode>[];
       pageData: { name: string; id: Id };
       historyDescription?: string;
       source?: HistoryOpSource;
@@ -1545,7 +1564,7 @@ class Editor extends BaseService {
       selectedBefore: this.selectionBeforeOp ?? [],
       selectedAfter: this.get('nodes').map((n) => n.id),
       modifiedNodeIds: new Map(this.get('modifiedNodeIds')),
-      ...extra,
+      diff,
     };
     if (historyDescription) step.historyDescription = historyDescription;
     if (source) step.source = source;
@@ -1580,52 +1599,52 @@ class Editor extends BaseService {
 
     switch (step.opType) {
       case 'add': {
-        const nodes = step.nodes ?? [];
+        const items = step.diff ?? [];
         if (reverse) {
           // 撤销 add：把当时加入的节点删除
-          for (const n of nodes) {
-            const existing = this.getNodeById(n.id, false);
+          for (const { newSchema } of items) {
+            if (!newSchema) continue;
+            const existing = this.getNodeById(newSchema.id, false);
             if (existing) {
               await this.remove(existing, commonOpts);
             }
           }
         } else {
-          // 重做 add：按记录的 indexMap 把节点重新插回父容器
-          const parent = this.getNodeById(step.parentId!, false) as MContainer | null;
-          if (parent) {
-            // 按目标 index 升序逐个插入，先小后大避免索引漂移
-            const sorted = [...nodes].sort((a, b) => (step.indexMap?.[a.id] ?? 0) - (step.indexMap?.[b.id] ?? 0));
-            for (const n of sorted) {
-              const idx = step.indexMap?.[n.id];
-              if (parent.items) {
-                if (typeof idx === 'number' && idx >= 0 && idx < parent.items.length) {
-                  parent.items.splice(idx, 0, cloneDeep(n));
-                } else {
-                  parent.items.push(cloneDeep(n));
-                }
-                await stage?.add({
-                  config: cloneDeep(n),
-                  parent: cloneDeep(parent),
-                  parentId: parent.id,
-                  root: cloneDeep(root),
-                });
+          // 重做 add：按记录的 parentId / index 把节点重新插回父容器。
+          // 按目标 index 升序逐个插入，先小后大避免索引漂移
+          const sorted = [...items].sort((a, b) => (a.index ?? 0) - (b.index ?? 0));
+          for (const { newSchema, parentId, index } of sorted) {
+            if (!newSchema || parentId === undefined) continue;
+            const parent = this.getNodeById(parentId, false) as MContainer | null;
+            if (parent?.items) {
+              if (typeof index === 'number' && index >= 0 && index < parent.items.length) {
+                parent.items.splice(index, 0, cloneDeep(newSchema));
+              } else {
+                parent.items.push(cloneDeep(newSchema));
               }
+              await stage?.add({
+                config: cloneDeep(newSchema),
+                parent: cloneDeep(parent),
+                parentId: parent.id,
+                root: cloneDeep(root),
+              });
             }
           }
         }
         break;
       }
       case 'remove': {
-        const items = step.removedItems ?? [];
+        const items = step.diff ?? [];
         if (reverse) {
           // 撤销 remove：按原 index 升序逐个插回（先小后大避免索引漂移）
-          const sorted = [...items].sort((a, b) => a.index - b.index);
-          for (const { node, parentId, index } of sorted) {
+          const sorted = [...items].sort((a, b) => (a.index ?? 0) - (b.index ?? 0));
+          for (const { oldSchema, parentId, index } of sorted) {
+            if (!oldSchema || parentId === undefined) continue;
             const parent = this.getNodeById(parentId, false) as MContainer | null;
             if (parent?.items) {
-              parent.items.splice(index, 0, cloneDeep(node));
+              parent.items.splice(index ?? parent.items.length, 0, cloneDeep(oldSchema));
               await stage?.add({
-                config: cloneDeep(node),
+                config: cloneDeep(oldSchema),
                 parent: cloneDeep(parent),
                 parentId,
                 root: cloneDeep(root),
@@ -1634,8 +1653,9 @@ class Editor extends BaseService {
           }
         } else {
           // 重做 remove：再删一次
-          for (const { node } of items) {
-            const existing = this.getNodeById(node.id, false);
+          for (const { oldSchema } of items) {
+            if (!oldSchema) continue;
+            const existing = this.getNodeById(oldSchema.id, false);
             if (existing) {
               await this.remove(existing, commonOpts);
             }
@@ -1644,27 +1664,31 @@ class Editor extends BaseService {
         break;
       }
       case 'update': {
-        const items = step.updatedItems ?? [];
+        const items = step.diff ?? [];
         // 优先按 changeRecords 局部 patch：仅触达 propPath 下的字段，避免整节点替换冲掉同节点上其它无关变更。
         // 没有 changeRecords 的（如内部 sort/moveLayer/拖动等整节点快照场景）才退化为整节点替换。
-        const configs = items.map(({ oldNode, newNode, changeRecords }) => {
-          if (changeRecords?.length) {
-            const sourceForValues = reverse ? oldNode : newNode;
-            // 仅保留 id / type 作为最小骨架，再按 propPath 写入需要回滚/重做的字段；
-            // 后续 update -> mergeWith 会与现有节点深合并，patch 中未涉及的字段不会被改动。
-            const patch: MNode = { id: newNode.id, type: newNode.type };
-            for (const record of changeRecords) {
-              if (!record.propPath) {
-                // 没有 propPath 视为整节点替换
-                return cloneDeep(sourceForValues);
+        const configs = items
+          .filter((item) => item.oldSchema && item.newSchema)
+          .map(({ oldSchema, newSchema, changeRecords }) => {
+            const oldNode = oldSchema!;
+            const newNode = newSchema!;
+            if (changeRecords?.length) {
+              const sourceForValues = reverse ? oldNode : newNode;
+              // 仅保留 id / type 作为最小骨架，再按 propPath 写入需要回滚/重做的字段；
+              // 后续 update -> mergeWith 会与现有节点深合并，patch 中未涉及的字段不会被改动。
+              const patch: MNode = { id: newNode.id, type: newNode.type };
+              for (const record of changeRecords) {
+                if (!record.propPath) {
+                  // 没有 propPath 视为整节点替换
+                  return cloneDeep(sourceForValues);
+                }
+                const value = cloneDeep(getValueByKeyPath(record.propPath, sourceForValues));
+                setValueByKeyPath(record.propPath, value, patch);
               }
-              const value = cloneDeep(getValueByKeyPath(record.propPath, sourceForValues));
-              setValueByKeyPath(record.propPath, value, patch);
+              return patch;
             }
-            return patch;
-          }
-          return cloneDeep(reverse ? oldNode : newNode);
-        });
+            return cloneDeep(reverse ? oldNode : newNode);
+          });
         if (configs.length) {
           await this.update(configs, { doNotPushHistory: true });
         }
diff --git a/packages/editor/src/services/history.ts b/packages/editor/src/services/history.ts
index 21efae96..3257b815 100644
--- a/packages/editor/src/services/history.ts
+++ b/packages/editor/src/services/history.ts
@@ -25,11 +25,13 @@ import type { ChangeRecord } from '@tmagic/form';
 import { guid } from '@tmagic/utils';
 
 import type {
+  BaseStepValue,
   CodeBlockHistoryGroup,
   CodeBlockStepValue,
   DataSourceHistoryGroup,
   DataSourceStepValue,
   HistoryOpSource,
+  HistoryOpType,
   HistoryPersistOptions,
   HistoryState,
   PageHistoryGroup,
@@ -52,20 +54,38 @@ const PERSIST_VERSION = 1;
 
 class History extends BaseService {
   /**
-   * 把单个代码块栈拆成若干 group：
+   * 把单个「按 id 分栈」的历史栈（代码块 / 数据源）拆成若干 group：
    * - 把"新增/删除"独立成组（语义上属于一次性事件，不应与 update 合并）；
    * - 连续 'update' 合并到同一组，组内 steps 顺序就是发生顺序。
+   *
+   * 代码块与数据源除 `kind` 外结构完全一致，统一由本方法处理；`kind` 决定返回的具体分组类型。
    */
-  private static mergeCodeBlockSteps(
-    codeBlockId: Id,
-    list: CodeBlockStepValue[],
+  private static mergeStackSteps<S extends BaseStepValue, K extends 'code-block' | 'data-source'>(
+    kind: K,
+    id: Id,
+    list: S[],
     cursor: number,
-  ): CodeBlockHistoryGroup[] {
-    const groups: CodeBlockHistoryGroup[] = [];
-    let current: CodeBlockHistoryGroup | null = null;
+  ): {
+    kind: K;
+    id: Id;
+    opType: HistoryOpType;
+    steps: { step: S; index: number; applied: boolean; isCurrent?: boolean }[];
+    applied: boolean;
+    isCurrent?: boolean;
+  }[] {
+    type Group = {
+      kind: K;
+      id: Id;
+      opType: HistoryOpType;
+      steps: { step: S; index: number; applied: boolean; isCurrent?: boolean }[];
+      applied: boolean;
+      isCurrent?: boolean;
+    };
+    const groups: Group[] = [];
+    let current: Group | null = null;
     const currentIndex = cursor - 1;
     list.forEach((step, index) => {
-      const opType = History.detectOpType(step.oldContent, step.newContent);
+      const { opType } = step;
       const applied = index < cursor;
       const isCurrent = index === currentIndex;
       if (opType === 'update' && current?.opType === 'update') {
@@ -74,39 +94,8 @@ class History extends BaseService {
         if (isCurrent) current.isCurrent = true;
       } else {
         current = {
-          kind: 'code-block',
-          id: codeBlockId,
-          opType,
-          steps: [{ step, index, applied, isCurrent }],
-          applied,
-          isCurrent,
-        };
-        groups.push(current);
-      }
-    });
-    return groups;
-  }
-
-  private static mergeDataSourceSteps(
-    dataSourceId: Id,
-    list: DataSourceStepValue[],
-    cursor: number,
-  ): DataSourceHistoryGroup[] {
-    const groups: DataSourceHistoryGroup[] = [];
-    let current: DataSourceHistoryGroup | null = null;
-    const currentIndex = cursor - 1;
-    list.forEach((step, index) => {
-      const opType = History.detectOpType(step.oldSchema, step.newSchema);
-      const applied = index < cursor;
-      const isCurrent = index === currentIndex;
-      if (opType === 'update' && current?.opType === 'update') {
-        current.steps.push({ step, index, applied, isCurrent });
-        current.applied = applied;
-        if (isCurrent) current.isCurrent = true;
-      } else {
-        current = {
-          kind: 'data-source',
-          id: dataSourceId,
+          kind,
+          id,
           opType,
           steps: [{ step, index, applied, isCurrent }],
           applied,
@@ -176,34 +165,34 @@ class History extends BaseService {
    */
   private static detectPageTargetId(step: StepValue): Id | undefined {
     if (step.opType !== 'update') return undefined;
-    const items = step.updatedItems;
+    const items = step.diff;
     if (items?.length !== 1) return undefined;
-    return items[0].newNode?.id ?? items[0].oldNode?.id;
+    return items[0].newSchema?.id ?? items[0].oldSchema?.id;
   }
 
   /** 解析 StepValue 中的目标节点可读名（用于 UI 展示）。 */
   private static detectPageTargetName(step: StepValue): string | undefined {
+    const items = step.diff;
     if (step.opType === 'update') {
-      const items = step.updatedItems;
       if (items?.length === 1) {
-        const node = items[0].newNode || items[0].oldNode;
+        const node = items[0].newSchema || items[0].oldSchema;
         return (node?.name as string) || (node?.type as string) || (node?.id !== undefined ? `${node.id}` : undefined);
       }
       return items?.length ? `${items.length} 个节点` : undefined;
     }
     if (step.opType === 'add') {
-      if (step.nodes?.length === 1) {
-        const n = step.nodes[0];
-        return (n.name as string) || (n.type as string) || `${n.id}`;
+      if (items?.length === 1) {
+        const n = items[0].newSchema;
+        return (n?.name as string) || (n?.type as string) || `${n?.id}`;
       }
-      return step.nodes?.length ? `${step.nodes.length} 个节点` : undefined;
+      return items?.length ? `${items.length} 个节点` : undefined;
     }
     if (step.opType === 'remove') {
-      if (step.removedItems?.length === 1) {
-        const n = step.removedItems[0].node;
-        return (n.name as string) || (n.type as string) || `${n.id}`;
+      if (items?.length === 1) {
+        const n = items[0].oldSchema;
+        return (n?.name as string) || (n?.type as string) || `${n?.id}`;
       }
-      return step.removedItems?.length ? `${step.removedItems.length} 个节点` : undefined;
+      return items?.length ? `${items.length} 个节点` : undefined;
     }
     return undefined;
   }
@@ -247,6 +236,16 @@ class History extends BaseService {
     return result;
   }
 
+  /**
+   * 按 id 从「按 id 分栈」的记录表（代码块 / 数据源）中获取（或创建）对应的 UndoRedo 栈。
+   */
+  private static getOrCreateStack<T>(stacks: Record<Id, UndoRedo<T>>, id: Id): UndoRedo<T> {
+    if (!stacks[id]) {
+      stacks[id] = new UndoRedo<T>();
+    }
+    return stacks[id];
+  }
+
   public state = reactive<HistoryState>({
     pageSteps: {},
     pageId: undefined,
@@ -338,20 +337,15 @@ class History extends BaseService {
       source?: HistoryOpSource;
     },
   ): CodeBlockStepValue | null {
-    if (!codeBlockId) return null;
-
-    const step: CodeBlockStepValue = {
-      uuid: guid(),
-      id: codeBlockId,
-      oldContent: payload.oldContent ? cloneDeep(payload.oldContent) : null,
-      newContent: payload.newContent ? cloneDeep(payload.newContent) : null,
-      changeRecords: payload.changeRecords?.length ? cloneDeep(payload.changeRecords) : undefined,
+    const step = this.createStackStep<CodeBlockContent, CodeBlockStepValue>(codeBlockId, {
+      oldValue: payload.oldContent,
+      newValue: payload.newContent,
+      changeRecords: payload.changeRecords,
       historyDescription: payload.historyDescription,
       source: payload.source,
-      timestamp: Date.now(),
-    };
-
-    this.getCodeBlockUndoRedo(codeBlockId).pushElement(step);
+    });
+    if (!step) return null;
+    History.getOrCreateStack(this.state.codeBlockState, codeBlockId).pushElement(step);
     this.emit('code-block-history-change', codeBlockId, step);
     return step;
   }
@@ -372,20 +366,15 @@ class History extends BaseService {
       source?: HistoryOpSource;
     },
   ): DataSourceStepValue | null {
-    if (!dataSourceId) return null;
-
-    const step: DataSourceStepValue = {
-      uuid: guid(),
-      id: dataSourceId,
-      oldSchema: payload.oldSchema ? cloneDeep(payload.oldSchema) : null,
-      newSchema: payload.newSchema ? cloneDeep(payload.newSchema) : null,
-      changeRecords: payload.changeRecords?.length ? cloneDeep(payload.changeRecords) : undefined,
+    const step = this.createStackStep<DataSourceSchema, DataSourceStepValue>(dataSourceId, {
+      oldValue: payload.oldSchema,
+      newValue: payload.newSchema,
+      changeRecords: payload.changeRecords,
       historyDescription: payload.historyDescription,
       source: payload.source,
-      timestamp: Date.now(),
-    };
-
-    this.getDataSourceUndoRedo(dataSourceId).pushElement(step);
+    });
+    if (!step) return null;
+    History.getOrCreateStack(this.state.dataSourceState, dataSourceId).pushElement(step);
     this.emit('data-source-history-change', dataSourceId, step);
     return step;
   }
@@ -649,7 +638,7 @@ class History extends BaseService {
       const list = undoRedo.getElementList();
       if (!list.length) return;
       const cursor = undoRedo.getCursor();
-      groups.push(...History.mergeCodeBlockSteps(id, list, cursor));
+      groups.push(...History.mergeStackSteps('code-block', id, list, cursor));
     });
     return groups;
   }
@@ -741,7 +730,7 @@ class History extends BaseService {
       const list = undoRedo.getElementList();
       if (!list.length) return;
       const cursor = undoRedo.getCursor();
-      groups.push(...History.mergeDataSourceSteps(id, list, cursor));
+      groups.push(...History.mergeStackSteps('data-source', id, list, cursor));
     });
     return groups;
   }
@@ -777,23 +766,47 @@ class History extends BaseService {
   }
 
   /**
-   * 按 id 获取（或创建）指定代码块的 UndoRedo 栈。
+   * 构造一条代码块 / 数据源「按 id 分栈」的历史记录：两者除 payload 字段命名外完全一致。
+   *
+   * - `add`：oldValue = null；`remove`：newValue = null；`update`：两者都有，可带 changeRecords 做局部更新。
+   * - 内容会做 cloneDeep 防止后续被外部引用篡改；opType 依据 old/new 是否为 null 推断。
+   * - 仅负责构造 step 并返回，入栈与事件 emit 由各公共方法（pushCodeBlock / pushDataSource）自行处理。
+   * - 不直接驱动业务 service，调用方负责实际写回。
    */
-  private getCodeBlockUndoRedo(codeBlockId: Id): UndoRedo<CodeBlockStepValue> {
-    if (!this.state.codeBlockState[codeBlockId]) {
-      this.state.codeBlockState[codeBlockId] = new UndoRedo<CodeBlockStepValue>();
-    }
-    return this.state.codeBlockState[codeBlockId];
-  }
+  private createStackStep<T, S extends BaseStepValue<T> & { id: Id }>(
+    id: Id,
+    payload: {
+      oldValue: T | null;
+      newValue: T | null;
+      changeRecords?: ChangeRecord[];
+      historyDescription?: string;
+      source?: HistoryOpSource;
+    },
+  ): S | null {
+    if (!id) return null;
 
-  /**
-   * 按 id 获取（或创建）指定数据源的 UndoRedo 栈。
-   */
-  private getDataSourceUndoRedo(dataSourceId: Id): UndoRedo<DataSourceStepValue> {
-    if (!this.state.dataSourceState[dataSourceId]) {
-      this.state.dataSourceState[dataSourceId] = new UndoRedo<DataSourceStepValue>();
-    }
-    return this.state.dataSourceState[dataSourceId];
+    const oldSchema = payload.oldValue ? cloneDeep(payload.oldValue) : null;
+    const newSchema = payload.newValue ? cloneDeep(payload.newValue) : null;
+    const changeRecords = payload.changeRecords?.length ? cloneDeep(payload.changeRecords) : undefined;
+    const opType = History.detectOpType(payload.oldValue, payload.newValue);
+
+    const step: BaseStepValue<T> & { id: Id } = {
+      uuid: guid(),
+      id,
+      opType,
+      diff: [
+        {
+          ...(newSchema !== null ? { newSchema } : {}),
+          ...(oldSchema !== null ? { oldSchema } : {}),
+          ...(opType === 'update' && changeRecords ? { changeRecords } : {}),
+        },
+      ],
+      historyDescription: payload.historyDescription,
+      source: payload.source,
+      timestamp: Date.now(),
+    };
+
+    return step as S;
   }
 }
 
diff --git a/packages/editor/src/type.ts b/packages/editor/src/type.ts
index 70a9437a..5e596165 100644
--- a/packages/editor/src/type.ts
+++ b/packages/editor/src/type.ts
@@ -721,17 +721,55 @@ export type HistoryOpSource =
   | (string & {});
 // #endregion HistoryOpSource
 
+// #region StepDiffItem
+/**
+ * 单条变更的 diff 描述，统一表达「页面节点 / 代码块 / 数据源」的变化内容，
+ * 被 {@link StepValue} / {@link CodeBlockStepValue} / {@link DataSourceStepValue} 的 `diff` 复用。
+ *
+ * 按 `opType` 区分携带的字段：
+ * - `add`：仅 `newSchema`（页面节点还带 `parentId` / `index`）；
+ * - `remove`：仅 `oldSchema`（页面节点还带 `parentId` / `index`）；
+ * - `update`：`oldSchema` + `newSchema`，并可带 `changeRecords` 做局部更新。
+ *
+ * 泛型 `T` 为变化内容的快照类型：页面节点为 `MNode`，代码块为 `CodeBlockContent`，数据源为 `DataSourceSchema`。
+ */
+export interface StepDiffItem<T = unknown> {
+  /** 变更后的内容快照。`opType` 为 `add` / `update` 时有，`remove` 时无。 */
+  newSchema?: T;
+  /** 变更前的内容快照。`opType` 为 `remove` / `update` 时有，`add` 时无。 */
+  oldSchema?: T;
+  /** 父节点 id。仅页面节点有（数据源 / 代码块没有父节点）。 */
+  parentId?: Id;
+  /** 在父节点 items 数组中的索引。仅页面节点有（数据源 / 代码块无需排序）。 */
+  index?: number;
+  /**
+   * form 端 propPath/value 变更列表，仅 `opType` 为 `update` 时有；
+   * 撤销/重做时若有则按 propPath 局部更新，缺省才退化为整内容替换。
+   */
+  changeRecords?: ChangeRecord[];
+}
+// #endregion StepDiffItem
+
 // #region BaseStepValue
 /**
  * 历史记录条目公共字段，被 {@link StepValue} / {@link CodeBlockStepValue} / {@link DataSourceStepValue} 复用。
+ *
+ * 泛型 `T` 为 `diff` 中变化内容的快照类型（页面节点 `MNode` / 代码块 `CodeBlockContent` / 数据源 `DataSourceSchema`）。
  */
-export interface BaseStepValue {
+export interface BaseStepValue<T = unknown> {
   /**
    * 历史记录唯一标识（uuid）。入栈时自动写入（若调用方未指定），
    * 用于精确定位 / 引用某一条历史记录（如 revert、埋点、跨端同步等）。
    * 注意与各自的 `id`（关联的页面 / 代码块 / 数据源 id）区分。
    */
   uuid: string;
+  /** 操作类型：新增 / 删除 / 更新（三类历史记录统一携带）。 */
+  opType: HistoryOpType;
+  /**
+   * 本次变更的内容（统一 diff 表达），每项见 {@link StepDiffItem}。
+   * 页面节点（add/remove 多节点、update 多节点）会有多项，代码块 / 数据源通常只有一项。
+   */
+  diff: StepDiffItem<T>[];
   /**
    * 调用方可选传入的人类可读描述（如「调整按钮颜色」），用于历史面板展示。
    * 不影响 undo/redo 行为；缺省时面板会根据节点 / propPath 自动生成描述。
@@ -756,74 +794,42 @@ export interface BaseStepValue {
 // #endregion BaseStepValue
 
 // #region StepValue
-export interface StepValue extends BaseStepValue {
+export interface StepValue extends BaseStepValue<MNode> {
   /** 页面信息 */
   data: { name: string; id: Id };
-  opType: HistoryOpType;
   /** 操作前选中的节点 ID，用于撤销后恢复选择状态 */
   selectedBefore: Id[];
   /** 操作后选中的节点 ID，用于重做后恢复选择状态 */
   selectedAfter: Id[];
   modifiedNodeIds: Map<Id, Id>;
-  /** opType 'add': 新增的节点 */
-  nodes?: MNode[];
-  /** opType 'add': 父节点 ID */
-  parentId?: Id;
-  /** opType 'add': 每个新增节点在父节点 items 中的索引 */
-  indexMap?: Record<string, number>;
-  /** opType 'remove': 被删除的节点及其位置信息 */
-  removedItems?: { node: MNode; parentId: Id; index: number }[];
-  /**
-   * opType 'update': 变更前后的节点快照
-   *
-   * `changeRecords` 来自 form 端的 propPath/value 列表，撤销/重做时只对这些 propPath 做局部更新；
-   * 缺省（未传 / 空数组）才退化为整节点替换。
-   */
-  updatedItems?: { oldNode: MNode; newNode: MNode; changeRecords?: ChangeRecord[] }[];
 }
 // #endregion StepValue
 
 // #region CodeBlockStepValue
 /**
  * 代码块历史记录条目。按 codeBlock.id 分组保存到 historyState.codeBlockState。
- * - 新增：oldContent = null，newContent = 新内容
- * - 更新：oldContent / newContent 都为对应内容
- * - 删除：newContent = null，oldContent = 删除前内容
+ * 变更内容统一由 `diff`（单项）表达，每项见 {@link StepDiffItem}：
+ * - 新增（opType 'add'）：仅 `newSchema`（新内容）；
+ * - 更新（opType 'update'）：`oldSchema` + `newSchema`，并可带 `changeRecords` 做局部更新；
+ * - 删除（opType 'remove'）：仅 `oldSchema`（删除前内容）。
  */
-export interface CodeBlockStepValue extends BaseStepValue {
+export interface CodeBlockStepValue extends BaseStepValue<CodeBlockContent> {
   /** 关联的代码块 id */
   id: Id;
-  /** 变更前的代码块内容，新增时为 null */
-  oldContent: CodeBlockContent | null;
-  /** 变更后的代码块内容，删除时为 null */
-  newContent: CodeBlockContent | null;
-  /**
-   * form 端 propPath/value 列表。撤销/重做时若有则按 propPath 局部更新；
-   * 缺省才退化为整内容替换。新增/删除场景通常无 changeRecords。
-   */
-  changeRecords?: ChangeRecord[];
 }
 // #endregion CodeBlockStepValue
 
 // #region DataSourceStepValue
 /**
  * 数据源历史记录条目。按 dataSource.id 分组保存到 historyState.dataSourceState。
- * - 新增：oldSchema = null，newSchema = 新 schema
- * - 更新：oldSchema / newSchema 都为对应 schema
- * - 删除：newSchema = null，oldSchema = 删除前 schema
+ * 变更内容统一由 `diff`（单项）表达，每项见 {@link StepDiffItem}：
+ * - 新增（opType 'add'）：仅 `newSchema`（新 schema）；
+ * - 更新（opType 'update'）：`oldSchema` + `newSchema`，并可带 `changeRecords` 做局部更新；
+ * - 删除（opType 'remove'）：仅 `oldSchema`（删除前 schema）。
  */
-export interface DataSourceStepValue extends BaseStepValue {
+export interface DataSourceStepValue extends BaseStepValue<DataSourceSchema> {
   /** 关联的数据源 id */
   id: Id;
-  /** 变更前的数据源 schema，新增时为 null */
-  oldSchema: DataSourceSchema | null;
-  /** 变更后的数据源 schema，删除时为 null */
-  newSchema: DataSourceSchema | null;
-  /**
-   * form 端 propPath/value 列表。撤销/重做时若有则按 propPath 局部更新；
-   * 缺省才退化为整 schema 替换。新增/删除场景通常无 changeRecords。
-   */
-  changeRecords?: ChangeRecord[];
 }
 // #endregion DataSourceStepValue
 
diff --git a/packages/editor/src/utils/history.ts b/packages/editor/src/utils/history.ts
new file mode 100644
index 00000000..f7c1b23f
--- /dev/null
+++ b/packages/editor/src/utils/history.ts
@@ -0,0 +1,43 @@
+/*
+ * Tencent is pleased to support the open source community by making TMagicEditor available.
+ *
+ * Copyright (C) 2025 Tencent.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import type { Id } from '@tmagic/core';
+
+import type { StepDiffItem } from '@editor/type';
+
+/**
+ * 「回滚」生成的新 step 简短描述。代码块 / 数据源共用。
+ * 二者逻辑一致，仅展示名取值字段不同（代码块取 `name`，数据源取 `title`），
+ * 因此通过 `getLabel` 注入取值方式。
+ *
+ * @param id 关联的代码块 / 数据源 id
+ * @param diff 单条变更 diff（缺省视为空）
+ * @param getLabel 从快照取展示名
+ */
+export const describeRevertStep = <T extends object>(
+  id: Id,
+  { oldSchema, newSchema, changeRecords }: StepDiffItem<T> = {},
+  getLabel: (schema: T) => string | undefined,
+): string => {
+  const labelOf = (schema: T) => getLabel(schema) || (schema as { id?: Id }).id;
+  if (!oldSchema && newSchema) return `撤回新增 ${labelOf(newSchema) || id}`;
+  if (oldSchema && !newSchema) return `还原已删除的 ${labelOf(oldSchema) || id}`;
+  const label = (newSchema && getLabel(newSchema)) || (oldSchema && getLabel(oldSchema)) || `${id}`;
+  const propPath = changeRecords?.[0]?.propPath;
+  return propPath ? `还原 ${label} · ${propPath}` : `还原 ${label}`;
+};
diff --git a/packages/editor/src/utils/index.ts b/packages/editor/src/utils/index.ts
index 97845868..90a8ef2c 100644
--- a/packages/editor/src/utils/index.ts
+++ b/packages/editor/src/utils/index.ts
@@ -28,5 +28,6 @@ export * from './scroll-viewer';
 export * from './tree';
 export * from './undo-redo';
 export * from './indexed-db';
+export * from './history';
 export * from './const';
 export { default as loadMonaco } from './monaco-editor';
diff --git a/packages/editor/tests/unit/layouts/history-list/Bucket.spec.ts b/packages/editor/tests/unit/layouts/history-list/Bucket.spec.ts
index 7a480e97..254c1478 100644
--- a/packages/editor/tests/unit/layouts/history-list/Bucket.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/Bucket.spec.ts
@@ -7,8 +7,9 @@ import { describe, expect, test } from 'vitest';
 import { mount } from '@vue/test-utils';
 
 import Bucket from '@editor/layouts/history-list/Bucket.vue';
+import type { HistoryBucketConfig } from '@editor/layouts/history-list/composables';
 
-const buildGroup = (opType: 'add' | 'remove' | 'update', stepCount: number, applied = true) => ({
+const buildGroup = (opType: 'add' | 'remove' | 'update', stepCount: number, applied = true): any => ({
   applied,
   opType,
   steps: Array.from({ length: stepCount }, (_, i) => ({
@@ -18,16 +19,22 @@ const buildGroup = (opType: 'add' | 'remove' | 'update', stepCount: number, appl
   })),
 });
 
+/** 把 title/prefix/describe* 收敛成单一 config，贴近真实调用方式。 */
+const buildConfig = (overrides: Partial<HistoryBucketConfig<any>> = {}): HistoryBucketConfig<any> => ({
+  title: '数据源',
+  prefix: 'ds',
+  describeGroup: () => 'desc',
+  describeStep: () => 'sub-desc',
+  ...overrides,
+});
+
 describe('Bucket.vue', () => {
   test('渲染 bucket 头部信息与组数', () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '数据源',
+        config: buildConfig(),
         bucketId: 'ds_1',
-        prefix: 'ds',
         groups: [buildGroup('update', 1), buildGroup('add', 1)],
-        describeGroup: () => 'desc',
-        describeStep: () => 'sub-desc',
         expanded: {},
       },
     });
@@ -44,12 +51,9 @@ describe('Bucket.vue', () => {
 
     const wrapper = mount(Bucket, {
       props: {
-        title: '代码块',
+        config: buildConfig({ title: '代码块', prefix: 'cb', describeGroup, describeStep }),
         bucketId: 'code_1',
-        prefix: 'cb',
         groups,
-        describeGroup,
-        describeStep,
         expanded: { 'cb-code_1-0': true },
       },
     });
@@ -73,12 +77,9 @@ describe('Bucket.vue', () => {
   test('合并组头部点击 → toggle 事件被透传到 Bucket', async () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '代码块',
+        config: buildConfig({ title: '代码块', prefix: 'cb', describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 'code_1',
-        prefix: 'cb',
         groups: [buildGroup('update', 2)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         expanded: {},
       },
     });
@@ -93,12 +94,9 @@ describe('Bucket.vue', () => {
   test('单步组「回到」按钮点击 → goto 事件被透传到 Bucket，并附带 bucketId', async () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '代码块',
+        config: buildConfig({ title: '代码块', prefix: 'cb', describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 'code_1',
-        prefix: 'cb',
         groups: [buildGroup('update', 1)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         expanded: {},
       },
     });
@@ -111,12 +109,9 @@ describe('Bucket.vue', () => {
   test('合并组展开后点击子步「回到」按钮 → goto 透传，附带子步 index', async () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '代码块',
+        config: buildConfig({ title: '代码块', prefix: 'cb', describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 'code_1',
-        prefix: 'cb',
         groups: [buildGroup('update', 2)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         expanded: { 'cb-code_1-0': true },
       },
     });
@@ -132,12 +127,9 @@ describe('Bucket.vue', () => {
   test('groupKey 命名空间使用 prefix + bucketId + 索引', () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '数据源',
+        config: buildConfig({ describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 42,
-        prefix: 'ds',
         groups: [buildGroup('update', 2), buildGroup('add', 1)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         // 给第二组打开展开状态
         expanded: { 'ds-42-1': true },
       },
@@ -152,12 +144,9 @@ describe('Bucket.vue', () => {
   test('groups 非空时底部追加初始项；点击透传 goto-initial 携带 bucketId', async () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '数据源',
+        config: buildConfig({ describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 'ds_1',
-        prefix: 'ds',
         groups: [buildGroup('add', 1)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         expanded: {},
       },
     });
@@ -175,12 +164,9 @@ describe('Bucket.vue', () => {
   test('该 bucket 全部组都已撤销时初始项标记为当前', () => {
     const wrapper = mount(Bucket, {
       props: {
-        title: '代码块',
+        config: buildConfig({ title: '代码块', prefix: 'cb', describeGroup: () => 'g', describeStep: () => 's' }),
         bucketId: 'cb_1',
-        prefix: 'cb',
         groups: [buildGroup('add', 1, false), buildGroup('update', 2, false)],
-        describeGroup: () => 'g',
-        describeStep: () => 's',
         expanded: {},
       },
     });
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 ac754b82..15a292a5 100644
--- a/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/CodeBlockTab.spec.ts
@@ -21,6 +21,19 @@ vi.mock('@tmagic/design', () => ({
   }),
 }));
 
+/** 把以 oldContent/newContent/changeRecords 描述的 fixture 归一成统一 diff 形态的 step。 */
+const toDiffStep = (s: any, opType: 'add' | 'remove' | 'update') => ({
+  id: s.id,
+  opType,
+  diff: [
+    {
+      ...(s.newContent != null ? { newSchema: s.newContent } : {}),
+      ...(s.oldContent != null ? { oldSchema: s.oldContent } : {}),
+      ...(s.changeRecords ? { changeRecords: s.changeRecords } : {}),
+    },
+  ],
+});
+
 const buildGroup = (
   id: string,
   opType: 'add' | 'remove' | 'update',
@@ -32,18 +45,20 @@ const buildGroup = (
   id,
   opType,
   applied,
-  steps: steps.map((s, i) => ({ step: s, index: startIndex + i, applied })),
+  steps: steps.map((s, i) => ({ step: toDiffStep(s, opType) as any, index: startIndex + i, applied })),
 });
 
-/** 代码块 tab 复用通用 BucketTab，固定注入代码块的 title/prefix/describe/isStepDiffable。 */
+/** 代码块 tab 复用通用 BucketTab，固定注入代码块的 config（title/prefix/describe/isStepDiffable）。 */
 const mountCodeBlockTab = (props: { buckets: any[]; expanded: Record<string, boolean> }) =>
   mount(BucketTab, {
     props: {
-      title: '代码块',
-      prefix: 'cb',
-      describeGroup: describeCodeBlockGroup,
-      describeStep: describeCodeBlockStep,
-      isStepDiffable: (step: CodeBlockStepValue) => Boolean(step.oldContent && step.newContent),
+      config: {
+        title: '代码块',
+        prefix: 'cb',
+        describeGroup: describeCodeBlockGroup,
+        describeStep: describeCodeBlockStep,
+        isStepDiffable: (step: CodeBlockStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
+      },
       ...props,
     },
   });
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 13af9084..026cf500 100644
--- a/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/DataSourceTab.spec.ts
@@ -21,6 +21,19 @@ vi.mock('@tmagic/design', () => ({
   }),
 }));
 
+/** 把以 oldSchema/newSchema/changeRecords 描述的 fixture 归一成统一 diff 形态的 step。 */
+const toDiffStep = (s: any, opType: 'add' | 'remove' | 'update') => ({
+  id: s.id,
+  opType,
+  diff: [
+    {
+      ...(s.newSchema != null ? { newSchema: s.newSchema } : {}),
+      ...(s.oldSchema != null ? { oldSchema: s.oldSchema } : {}),
+      ...(s.changeRecords ? { changeRecords: s.changeRecords } : {}),
+    },
+  ],
+});
+
 const buildGroup = (
   id: string,
   opType: 'add' | 'remove' | 'update',
@@ -32,18 +45,20 @@ const buildGroup = (
   id,
   opType,
   applied,
-  steps: steps.map((s, i) => ({ step: s, index: startIndex + i, applied })),
+  steps: steps.map((s, i) => ({ step: toDiffStep(s, opType) as any, index: startIndex + i, applied })),
 });
 
-/** 数据源 tab 复用通用 BucketTab，固定注入数据源的 title/prefix/describe/isStepDiffable。 */
+/** 数据源 tab 复用通用 BucketTab，固定注入数据源的 config（title/prefix/describe/isStepDiffable）。 */
 const mountDataSourceTab = (props: { buckets: any[]; expanded: Record<string, boolean> }) =>
   mount(BucketTab, {
     props: {
-      title: '数据源',
-      prefix: 'ds',
-      describeGroup: describeDataSourceGroup,
-      describeStep: describeDataSourceStep,
-      isStepDiffable: (step: DataSourceStepValue) => Boolean(step.oldSchema && step.newSchema),
+      config: {
+        title: '数据源',
+        prefix: 'ds',
+        describeGroup: describeDataSourceGroup,
+        describeStep: describeDataSourceStep,
+        isStepDiffable: (step: DataSourceStepValue) => Boolean(step.diff?.[0]?.oldSchema && step.diff?.[0]?.newSchema),
+      },
       ...props,
     },
   });
diff --git a/packages/editor/tests/unit/layouts/history-list/GroupRow.spec.ts b/packages/editor/tests/unit/layouts/history-list/GroupRow.spec.ts
index 86e960fa..7b97ba7f 100644
--- a/packages/editor/tests/unit/layouts/history-list/GroupRow.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/GroupRow.spec.ts
@@ -6,22 +6,30 @@
 import { describe, expect, test } from 'vitest';
 import { mount } from '@vue/test-utils';
 
+import type { HistoryRowGroup, HistoryRowStep } from '@editor/layouts/history-list/composables';
 import GroupRow from '@editor/layouts/history-list/GroupRow.vue';
 
-const baseProps = {
-  groupKey: 'pg-0',
+/** 构造 GroupRow 的视图模型（merged / stepCount 由 subSteps 长度派生）。 */
+const makeGroup = (overrides: Partial<HistoryRowGroup> = {}): HistoryRowGroup => ({
+  key: 'pg-0',
   applied: true,
-  merged: false,
-  opType: 'update' as const,
+  isCurrent: false,
+  opType: 'update',
   desc: '修改 按钮',
-  stepCount: 1,
-  subSteps: [] as { index: number; applied: boolean; desc: string }[],
-  expanded: false,
-};
+  subSteps: [],
+  ...overrides,
+});
+
+/** 构造单个子步，缺省值贴近真实派生结果。 */
+const makeStep = (overrides: Partial<HistoryRowStep> & Pick<HistoryRowStep, 'index'>): HistoryRowStep => ({
+  applied: true,
+  desc: '',
+  ...overrides,
+});
 
 describe('GroupRow.vue', () => {
   test('渲染描述与操作类型徽标（update→修改）', () => {
-    const wrapper = mount(GroupRow, { props: baseProps });
+    const wrapper = mount(GroupRow, { props: { group: makeGroup(), expanded: false } });
     expect(wrapper.find('.m-editor-history-list-item-desc').text()).toBe('修改 按钮');
     const op = wrapper.find('.m-editor-history-list-item-op');
     expect(op.text()).toBe('修改');
@@ -29,36 +37,41 @@ describe('GroupRow.vue', () => {
   });
 
   test('add / remove 操作徽标使用对应类名与文案', () => {
-    const w1 = mount(GroupRow, { props: { ...baseProps, opType: 'add' } });
+    const w1 = mount(GroupRow, { props: { group: makeGroup({ opType: 'add' }), expanded: false } });
     expect(w1.find('.m-editor-history-list-item-op').text()).toBe('新增');
     expect(w1.find('.m-editor-history-list-item-op').classes()).toContain('op-add');
 
-    const w2 = mount(GroupRow, { props: { ...baseProps, opType: 'remove' } });
+    const w2 = mount(GroupRow, { props: { group: makeGroup({ opType: 'remove' }), expanded: false } });
     expect(w2.find('.m-editor-history-list-item-op').text()).toBe('删除');
     expect(w2.find('.m-editor-history-list-item-op').classes()).toContain('op-remove');
   });
 
   test('applied=false 时附加 is-undone 类名', () => {
-    const wrapper = mount(GroupRow, { props: { ...baseProps, applied: false } });
+    const wrapper = mount(GroupRow, { props: { group: makeGroup({ applied: false }), expanded: false } });
     expect(wrapper.find('.m-editor-history-list-group').classes()).toContain('is-undone');
   });
 
-  test('merged=true 时显示「合并 N 步」并附 is-merged 类名', () => {
+  test('merged（子步数>1）时显示「合并 N 步」并附 is-merged 类名', () => {
     const wrapper = mount(GroupRow, {
-      props: { ...baseProps, merged: true, stepCount: 3 },
+      props: {
+        group: makeGroup({
+          subSteps: [makeStep({ index: 0 }), makeStep({ index: 1 }), makeStep({ index: 2 })],
+        }),
+        expanded: false,
+      },
     });
     expect(wrapper.find('.m-editor-history-list-group').classes()).toContain('is-merged');
     expect(wrapper.find('.m-editor-history-list-item-merge').text()).toBe('合并 3 步');
   });
 
   test('未合并时不渲染合并标记', () => {
-    const wrapper = mount(GroupRow, { props: baseProps });
+    const wrapper = mount(GroupRow, { props: { group: makeGroup(), expanded: false } });
     expect(wrapper.find('.m-editor-history-list-item-merge').exists()).toBe(false);
   });
 
   test('传入 time 时头部渲染时间，title 取 timeTitle', () => {
     const wrapper = mount(GroupRow, {
-      props: { ...baseProps, time: '12:00:00', timeTitle: '2026-06-03 12:00:00' },
+      props: { group: makeGroup({ time: '12:00:00', timeTitle: '2026-06-03 12:00:00' }), expanded: false },
     });
     const time = wrapper.find('.m-editor-history-list-item-time');
     expect(time.exists()).toBe(true);
@@ -67,26 +80,25 @@ describe('GroupRow.vue', () => {
   });
 
   test('未传 time 时头部不渲染时间元素', () => {
-    const wrapper = mount(GroupRow, { props: baseProps });
+    const wrapper = mount(GroupRow, { props: { group: makeGroup(), expanded: false } });
     expect(wrapper.find('.m-editor-history-list-item-time').exists()).toBe(false);
   });
 
   test('timeTitle 缺省时 title 回退为 time 本身', () => {
-    const wrapper = mount(GroupRow, { props: { ...baseProps, time: '08:30:00' } });
+    const wrapper = mount(GroupRow, { props: { group: makeGroup({ time: '08:30:00' }), expanded: false } });
     expect(wrapper.find('.m-editor-history-list-item-time').attributes('title')).toBe('08:30:00');
   });
 
   test('展开的子步各自渲染自己的时间', () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: true,
-        stepCount: 2,
+        group: makeGroup({
+          subSteps: [
+            makeStep({ index: 0, desc: '修改 颜色', time: '10:00:00', timeTitle: '2026-06-03 10:00:00' }),
+            makeStep({ index: 1, desc: '修改 字号', time: '10:01:00', timeTitle: '2026-06-03 10:01:00' }),
+          ],
+        }),
         expanded: true,
-        subSteps: [
-          { index: 0, applied: true, desc: '修改 颜色', time: '10:00:00', timeTitle: '2026-06-03 10:00:00' },
-          { index: 1, applied: true, desc: '修改 字号', time: '10:01:00', timeTitle: '2026-06-03 10:01:00' },
-        ],
       },
     });
     const items = wrapper.findAll('.m-editor-history-list-substeps li');
@@ -95,17 +107,16 @@ describe('GroupRow.vue', () => {
     expect(items[1].find('.m-editor-history-list-item-time').text()).toBe('10:00:00');
   });
 
-  test('merged=true 且 expanded=true 时渲染子步列表', () => {
+  test('merged 且 expanded=true 时渲染子步列表', () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: true,
-        stepCount: 2,
+        group: makeGroup({
+          subSteps: [
+            makeStep({ index: 0, applied: true, desc: '修改 颜色' }),
+            makeStep({ index: 1, applied: false, desc: '修改 字号' }),
+          ],
+        }),
         expanded: true,
-        subSteps: [
-          { index: 0, applied: true, desc: '修改 颜色' },
-          { index: 1, applied: false, desc: '修改 字号' },
-        ],
       },
     });
     const items = wrapper.findAll('.m-editor-history-list-substeps li');
@@ -119,21 +130,23 @@ describe('GroupRow.vue', () => {
     expect(items[1].text()).toContain('修改 颜色');
   });
 
-  test('merged=true 但 expanded=false 时不渲染子步列表', () => {
+  test('merged 但 expanded=false 时不渲染子步列表', () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: true,
-        stepCount: 2,
+        group: makeGroup({ subSteps: [makeStep({ index: 0, desc: 'x' }), makeStep({ index: 1, desc: 'y' })] }),
         expanded: false,
-        subSteps: [{ index: 0, applied: true, desc: 'x' }],
       },
     });
     expect(wrapper.find('.m-editor-history-list-substeps').exists()).toBe(false);
   });
 
-  test('点击合并组头部触发 toggle 事件并携带 groupKey', async () => {
-    const wrapper = mount(GroupRow, { props: { ...baseProps, merged: true, stepCount: 2 } });
+  test('点击合并组头部触发 toggle 事件并携带 group.key', async () => {
+    const wrapper = mount(GroupRow, {
+      props: {
+        group: makeGroup({ subSteps: [makeStep({ index: 0 }), makeStep({ index: 1 })] }),
+        expanded: false,
+      },
+    });
     await wrapper.find('.m-editor-history-list-group-head').trigger('click');
     const events = wrapper.emitted('toggle');
     expect(events).toBeTruthy();
@@ -145,9 +158,8 @@ describe('GroupRow.vue', () => {
   test('点击单步组（非合并）的「回到」按钮触发 goto，携带该唯一 step 的 index', async () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: false,
-        subSteps: [{ index: 7, applied: true, desc: 'a' }],
+        group: makeGroup({ subSteps: [makeStep({ index: 7, applied: true, desc: 'a' })] }),
+        expanded: false,
       },
     });
     // 点击头部本身不再触发 goto（整行不可点击）
@@ -164,10 +176,8 @@ describe('GroupRow.vue', () => {
   test('当前单步组（isCurrent=true）点击头部不触发 goto', async () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: false,
-        isCurrent: true,
-        subSteps: [{ index: 0, applied: true, desc: 'x' }],
+        group: makeGroup({ isCurrent: true, subSteps: [makeStep({ index: 0, desc: 'x' })] }),
+        expanded: false,
       },
     });
     await wrapper.find('.m-editor-history-list-group-head').trigger('click');
@@ -177,14 +187,11 @@ describe('GroupRow.vue', () => {
   test('当前合并组（isCurrent=true）点击头部仍能 toggle', async () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: true,
-        stepCount: 2,
-        isCurrent: true,
-        subSteps: [
-          { index: 0, applied: true, desc: 'a' },
-          { index: 1, applied: true, desc: 'b', isCurrent: true },
-        ],
+        group: makeGroup({
+          isCurrent: true,
+          subSteps: [makeStep({ index: 0, desc: 'a' }), makeStep({ index: 1, desc: 'b', isCurrent: true })],
+        }),
+        expanded: false,
       },
     });
     await wrapper.find('.m-editor-history-list-group-head').trigger('click');
@@ -192,17 +199,16 @@ describe('GroupRow.vue', () => {
     expect(wrapper.emitted('goto')).toBeFalsy();
   });
 
-  test('点击子步「回退」按钮触发 goto 携带该子步 index；当前子步无回退按钮', async () => {
+  test('点击子步「回到」按钮触发 goto 携带该子步 index；当前子步无回到按钮', async () => {
     const wrapper = mount(GroupRow, {
       props: {
-        ...baseProps,
-        merged: true,
-        stepCount: 2,
+        group: makeGroup({
+          subSteps: [
+            makeStep({ index: 0, applied: true, desc: 'a', isCurrent: true }),
+            makeStep({ index: 1, applied: false, desc: 'b' }),
+          ],
+        }),
         expanded: true,
-        subSteps: [
-          { index: 0, applied: true, desc: 'a', isCurrent: true },
-          { index: 1, applied: false, desc: 'b' },
-        ],
       },
     });
     // 子步倒序渲染：subItems[0] 为 index=1（非当前，含跳转按钮），subItems[1] 为 index=0（当前，无跳转按钮）
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 4349cacd..3c169476 100644
--- a/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/HistoryListPanel.spec.ts
@@ -105,7 +105,7 @@ describe('HistoryListPanel.vue', () => {
     historyService.changePage({ id: 'p1' } as any);
     historyService.push({
       opType: 'add',
-      nodes: [{ id: 'n1', name: 'A' }],
+      diff: [{ newSchema: { id: 'n1', name: 'A' } }],
       modifiedNodeIds: new Map(),
     } as any);
     historyService.pushDataSource('ds_1', {
@@ -136,10 +136,10 @@ describe('HistoryListPanel.vue', () => {
     const mkUpdate = (path: string) => ({
       opType: 'update',
       modifiedNodeIds: new Map(),
-      updatedItems: [
+      diff: [
         {
-          newNode: { id: 'btn', name: '按钮' },
-          oldNode: { id: 'btn', name: '按钮' },
+          newSchema: { id: 'btn', name: '按钮' },
+          oldSchema: { id: 'btn', name: '按钮' },
           changeRecords: [{ propPath: path }],
         },
       ],
@@ -169,12 +169,12 @@ describe('HistoryListPanel.vue', () => {
     historyService.changePage({ id: 'p1' } as any);
     historyService.push({
       opType: 'add',
-      nodes: [{ id: 'n1', name: 'A' }],
+      diff: [{ newSchema: { id: 'n1', name: 'A' } }],
       modifiedNodeIds: new Map(),
     } as any);
     historyService.push({
       opType: 'add',
-      nodes: [{ id: 'n2', name: 'B' }],
+      diff: [{ newSchema: { id: 'n2', name: 'B' } }],
       modifiedNodeIds: new Map(),
     } as any);
 
@@ -240,7 +240,7 @@ describe('HistoryListPanel.vue', () => {
     historyService.changePage({ id: 'p1' } as any);
     historyService.push({
       opType: 'add',
-      nodes: [{ id: 'n1', name: 'A' }],
+      diff: [{ newSchema: { id: 'n1', name: 'A' } }],
       modifiedNodeIds: new Map(),
     } as any);
 
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 e532c9db..680ef97d 100644
--- a/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/PageTab.spec.ts
@@ -46,16 +46,16 @@ describe('PageTab.vue', () => {
 
   test('list 非空：每个 group 渲染一行', () => {
     const list = [
-      buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }]),
+      buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }]),
       buildPageGroup(
         'update',
         [
           {
             opType: 'update',
-            updatedItems: [
+            diff: [
               {
-                newNode: { id: 'btn', name: '按钮' },
-                oldNode: { id: 'btn' },
+                newSchema: { id: 'btn', name: '按钮' },
+                oldSchema: { id: 'btn' },
                 changeRecords: [{ propPath: 'style.color' }],
               },
             ],
@@ -78,7 +78,9 @@ describe('PageTab.vue', () => {
   });
 
   test('step 含 timestamp 时渲染时间元素', () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }], timestamp: Date.now() }])];
+    const list = [
+      buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }], timestamp: Date.now() }]),
+    ];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     const time = wrapper.find('.m-editor-history-list-item-time');
     expect(time.exists()).toBe(true);
@@ -87,7 +89,7 @@ describe('PageTab.vue', () => {
   });
 
   test('step 无 timestamp 时不渲染时间元素', () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }])];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }])];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     expect(wrapper.find('.m-editor-history-list-item-time').exists()).toBe(false);
   });
@@ -98,20 +100,20 @@ describe('PageTab.vue', () => {
       [
         {
           opType: 'update',
-          updatedItems: [
+          diff: [
             {
-              newNode: { id: 'btn', name: '按钮' },
-              oldNode: { id: 'btn' },
+              newSchema: { id: 'btn', name: '按钮' },
+              oldSchema: { id: 'btn' },
               changeRecords: [{ propPath: 'a' }],
             },
           ],
         },
         {
           opType: 'update',
-          updatedItems: [
+          diff: [
             {
-              newNode: { id: 'btn', name: '按钮' },
-              oldNode: { id: 'btn' },
+              newSchema: { id: 'btn', name: '按钮' },
+              oldSchema: { id: 'btn' },
               changeRecords: [{ propPath: 'b' }],
             },
           ],
@@ -138,11 +140,11 @@ describe('PageTab.vue', () => {
         [
           {
             opType: 'update',
-            updatedItems: [{ newNode: { id: 'btn' }, oldNode: { id: 'btn' }, changeRecords: [{ propPath: 'a' }] }],
+            diff: [{ newSchema: { id: 'btn' }, oldSchema: { id: 'btn' }, changeRecords: [{ propPath: 'a' }] }],
           },
           {
             opType: 'update',
-            updatedItems: [{ newNode: { id: 'btn' }, oldNode: { id: 'btn' }, changeRecords: [{ propPath: 'b' }] }],
+            diff: [{ newSchema: { id: 'btn' }, oldSchema: { id: 'btn' }, changeRecords: [{ propPath: 'b' }] }],
           },
         ],
         true,
@@ -154,11 +156,11 @@ describe('PageTab.vue', () => {
         [
           {
             opType: 'update',
-            updatedItems: [{ newNode: { id: 'btn2' }, oldNode: { id: 'btn2' }, changeRecords: [{ propPath: 'a' }] }],
+            diff: [{ newSchema: { id: 'btn2' }, oldSchema: { id: 'btn2' }, changeRecords: [{ propPath: 'a' }] }],
           },
           {
             opType: 'update',
-            updatedItems: [{ newNode: { id: 'btn2' }, oldNode: { id: 'btn2' }, changeRecords: [{ propPath: 'b' }] }],
+            diff: [{ newSchema: { id: 'btn2' }, oldSchema: { id: 'btn2' }, changeRecords: [{ propPath: 'b' }] }],
           },
         ],
         true,
@@ -178,7 +180,7 @@ describe('PageTab.vue', () => {
   });
 
   test('点击单步组「回到」按钮透传 goto 事件，携带该 step 的 index', async () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }])];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }])];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     await wrapper.find('.m-editor-history-list-item-goto').trigger('click');
     expect(wrapper.emitted('goto')).toBeTruthy();
@@ -187,7 +189,7 @@ describe('PageTab.vue', () => {
   });
 
   test('已撤销组（applied=false）附 is-undone 类名', () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }], false)];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }], false)];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     expect(wrapper.find('.m-editor-history-list-group').classes()).toContain('is-undone');
   });
@@ -198,13 +200,13 @@ describe('PageTab.vue', () => {
     expect(empty.find('.m-editor-history-list-initial').exists()).toBe(false);
 
     // 非空 list：底部应有一条初始项
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }])];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }])];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     expect(wrapper.find('.m-editor-history-list-initial').exists()).toBe(true);
   });
 
   test('全部 group 都未 applied 时初始项标记为当前', () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }], false)];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }], false)];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     const initial = wrapper.find('.m-editor-history-list-initial');
     expect(initial.classes()).toContain('is-current');
@@ -212,8 +214,8 @@ describe('PageTab.vue', () => {
 
   test('存在已 applied 的 group 时初始项不为当前', () => {
     const list = [
-      buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }], true),
-      buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n2', name: 'B' }] }], false),
+      buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }], true),
+      buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n2', name: 'B' } }] }], false),
     ];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     const initial = wrapper.find('.m-editor-history-list-initial');
@@ -221,7 +223,7 @@ describe('PageTab.vue', () => {
   });
 
   test('点击非当前初始项的「回到」按钮透传 goto-initial 事件', async () => {
-    const list = [buildPageGroup('add', [{ opType: 'add', nodes: [{ id: 'n1', name: 'A' }] }], true)];
+    const list = [buildPageGroup('add', [{ opType: 'add', diff: [{ newSchema: { id: 'n1', name: 'A' } }] }], true)];
     const wrapper = mount(PageTab, { props: { list, expanded: {} } });
     await wrapper.find('.m-editor-history-list-initial .m-editor-history-list-item-goto').trigger('click');
     expect(wrapper.emitted('goto-initial')).toBeTruthy();
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 80a1b1f9..6d42e07d 100644
--- a/packages/editor/tests/unit/layouts/history-list/composables.spec.ts
+++ b/packages/editor/tests/unit/layouts/history-list/composables.spec.ts
@@ -109,7 +109,7 @@ describe('describePageStep', () => {
   test('add 单个节点：含名称与 id', () => {
     const step = {
       opType: 'add',
-      nodes: [{ id: 'btn_1', type: 'button', name: '主按钮' }],
+      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)）');
   });
@@ -117,7 +117,7 @@ describe('describePageStep', () => {
   test('add 节点无 name 但有 type：使用 type 作为名称', () => {
     const step = {
       opType: 'add',
-      nodes: [{ id: 'n1', type: 'text' }],
+      diff: [{ newSchema: { id: 'n1', type: 'text' } }],
     } as unknown as StepValue;
     expect(describePageStep(step)).toBe('新增 1 个节点（text (id: n1)）');
   });
@@ -125,7 +125,7 @@ describe('describePageStep', () => {
   test('add 节点 name 与 id 相同：仅显示 id', () => {
     const step = {
       opType: 'add',
-      nodes: [{ id: 'n1', name: 'n1' }],
+      diff: [{ newSchema: { id: 'n1', name: 'n1' } }],
     } as unknown as StepValue;
     expect(describePageStep(step)).toBe('新增 1 个节点（n1）');
   });
@@ -133,7 +133,7 @@ describe('describePageStep', () => {
   test('add 多个节点：仅给出数量', () => {
     const step = {
       opType: 'add',
-      nodes: [{ id: 'a' }, { id: 'b' }],
+      diff: [{ newSchema: { id: 'a' } }, { newSchema: { id: 'b' } }],
     } as unknown as StepValue;
     expect(describePageStep(step)).toBe('新增 2 个节点');
   });
@@ -146,7 +146,7 @@ describe('describePageStep', () => {
   test('remove 单个节点：含名称与 id', () => {
     const step = {
       opType: 'remove',
-      removedItems: [{ node: { id: 'btn_1', name: '主按钮' } }],
+      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)）');
   });
@@ -154,7 +154,7 @@ describe('describePageStep', () => {
   test('remove 多个节点', () => {
     const step = {
       opType: 'remove',
-      removedItems: [{ node: { id: 'a' } }, { node: { id: 'b' } }],
+      diff: [{ oldSchema: { id: 'a' } }, { oldSchema: { id: 'b' } }],
     } as unknown as StepValue;
     expect(describePageStep(step)).toBe('删除 2 个节点');
   });
@@ -162,10 +162,10 @@ describe('describePageStep', () => {
   test('update 单节点：附 propPath 与 id', () => {
     const step = {
       opType: 'update',
-      updatedItems: [
+      diff: [
         {
-          newNode: { id: 'btn_1', name: '按钮' },
-          oldNode: { id: 'btn_1', name: '按钮' },
+          newSchema: { id: 'btn_1', name: '按钮' },
+          oldSchema: { id: 'btn_1', name: '按钮' },
           changeRecords: [{ propPath: 'style.color' }],
         },
       ],
@@ -176,7 +176,7 @@ describe('describePageStep', () => {
   test('update 单节点无 propPath：仅展示节点', () => {
     const step = {
       opType: 'update',
-      updatedItems: [{ newNode: { id: 'btn_1', name: '按钮' }, oldNode: { id: 'btn_1' } }],
+      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)');
   });
@@ -184,15 +184,15 @@ describe('describePageStep', () => {
   test('update 多节点：返回数量', () => {
     const step = {
       opType: 'update',
-      updatedItems: [
-        { newNode: { id: 'a' }, oldNode: { id: 'a' } },
-        { newNode: { id: 'b' }, oldNode: { id: 'b' } },
+      diff: [
+        { newSchema: { id: 'a' }, oldSchema: { id: 'a' } },
+        { newSchema: { id: 'b' }, oldSchema: { id: 'b' } },
       ],
     } as unknown as StepValue;
     expect(describePageStep(step)).toBe('修改 2 个节点');
   });
 
-  test('update updatedItems 缺省：兜底为「修改节点」', () => {
+  test('update diff 缺省：兜底为「修改节点」', () => {
     const step = { opType: 'update' } as unknown as StepValue;
     expect(describePageStep(step)).toBe('修改节点');
   });
@@ -219,7 +219,7 @@ describe('describePageGroup', () => {
   test('单步 group 复用 describePageStep', () => {
     const step = {
       opType: 'update',
-      updatedItems: [{ newNode: { id: 'a', name: 'A' }, oldNode: { id: 'a' } }],
+      diff: [{ newSchema: { id: 'a', name: 'A' }, oldSchema: { id: 'a' } }],
     } as unknown as StepValue;
     const group: PageHistoryGroup = {
       kind: 'page',
@@ -237,10 +237,10 @@ describe('describePageGroup', () => {
     const mkStep = (path: string) =>
       ({
         opType: 'update',
-        updatedItems: [
+        diff: [
           {
-            newNode: { id: 'btn_1', name: '按钮' },
-            oldNode: { id: 'btn_1', name: '按钮' },
+            newSchema: { id: 'btn_1', name: '按钮' },
+            oldSchema: { id: 'btn_1', name: '按钮' },
             changeRecords: [{ propPath: path }],
           },
         ],
@@ -262,10 +262,10 @@ describe('describePageGroup', () => {
     const mkStep = (path: string) =>
       ({
         opType: 'update',
-        updatedItems: [
+        diff: [
           {
-            newNode: { id: 'btn_1', name: '按钮' },
-            oldNode: { id: 'btn_1' },
+            newSchema: { id: 'btn_1', name: '按钮' },
+            oldSchema: { id: 'btn_1' },
             changeRecords: [{ propPath: path }],
           },
         ],
@@ -294,7 +294,7 @@ describe('describePageGroup', () => {
     const mkStep = () =>
       ({
         opType: 'update',
-        updatedItems: [{ newNode: { id: 'btn_1', name: '按钮' }, oldNode: { id: 'btn_1' } }],
+        diff: [{ newSchema: { id: 'btn_1', name: '按钮' }, oldSchema: { id: 'btn_1' } }],
       }) as unknown as StepValue;
 
     const group: PageHistoryGroup = {
@@ -317,8 +317,8 @@ describe('describePageGroup', () => {
       targetId: 'btn_1',
       applied: true,
       steps: [
-        buildPageEntry({ opType: 'update', updatedItems: [] } as any, 0),
-        buildPageEntry({ opType: 'update', updatedItems: [] } as any, 1),
+        buildPageEntry({ opType: 'update', diff: [] } as any, 0),
+        buildPageEntry({ opType: 'update', diff: [] } as any, 1),
       ],
     };
     // targetName 为 undefined，labelWithId 看 label === id 时只展示 id
@@ -328,61 +328,72 @@ describe('describePageGroup', () => {
 
 describe('describeDataSourceStep', () => {
   test('historyDescription 优先', () => {
-    const step: DataSourceStepValue = {
+    const step = {
       id: 'ds_1',
-      oldSchema: null,
-      newSchema: null,
+      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: DataSourceStepValue = {
+    const step = {
       id: 'ds_1',
-      oldSchema: null,
-      newSchema: { id: 'ds_1', title: '用户列表' } as any,
-    };
+      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: DataSourceStepValue = {
+    const step = {
       id: 'ds_1',
-      oldSchema: { id: 'ds_1', title: '用户列表' } as any,
-      newSchema: null,
-    };
+      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: DataSourceStepValue = {
+    const step = {
       id: 'ds_1',
-      oldSchema: { id: 'ds_1', title: '用户列表' } as any,
-      newSchema: { id: 'ds_1', title: '用户列表' } as any,
-      changeRecords: [{ propPath: 'fields.0.name' } as any],
-    };
+      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: DataSourceStepValue = {
+    const step = {
       id: 'ds_1',
-      oldSchema: { id: 'ds_1' } as any,
-      newSchema: { id: 'ds_1' } as any,
-    };
+      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): DataSourceStepValue => ({
-      id: 'ds_1',
-      oldSchema: { id: 'ds_1', title: 'T' } as any,
-      newSchema: { id: 'ds_1', title: 'T' } as any,
-      changeRecords: [{ propPath: path } as any],
-    });
+    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',
@@ -404,7 +415,11 @@ describe('describeDataSourceGroup', () => {
       applied: true,
       steps: [
         {
-          step: { id: 'ds_1', oldSchema: null, newSchema: { id: 'ds_1', title: 'T' } as any },
+          step: {
+            id: 'ds_1',
+            opType: 'add',
+            diff: [{ newSchema: { id: 'ds_1', title: 'T' } }],
+          } as unknown as DataSourceStepValue,
           index: 0,
           applied: true,
         },
@@ -423,10 +438,10 @@ describe('describeDataSourceGroup', () => {
         {
           step: {
             id: 'ds_1',
-            oldSchema: null,
-            newSchema: null,
+            opType: 'update',
+            diff: [{}],
             historyDescription: '我的描述',
-          },
+          } as unknown as DataSourceStepValue,
           index: 0,
           applied: true,
         },
@@ -438,52 +453,63 @@ describe('describeDataSourceGroup', () => {
 
 describe('describeCodeBlockStep', () => {
   test('新增', () => {
-    const step: CodeBlockStepValue = {
+    const step = {
       id: 'code_1',
-      oldContent: null,
-      newContent: { id: 'code_1', name: 'onClick' } as any,
-    };
+      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: CodeBlockStepValue = {
+    const step = {
       id: 'code_1',
-      oldContent: { id: 'code_1', name: 'onClick' } as any,
-      newContent: null,
-    };
+      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: CodeBlockStepValue = {
+    const step = {
       id: 'code_1',
-      oldContent: { id: 'code_1', name: 'onClick' } as any,
-      newContent: { id: 'code_1', name: 'onClick' } as any,
-      changeRecords: [{ propPath: 'content' } as any],
-    };
+      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: CodeBlockStepValue = {
+    const step = {
       id: 'code_1',
-      oldContent: null,
-      newContent: null,
+      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): CodeBlockStepValue => ({
-      id: 'code_1',
-      oldContent: { id: 'code_1', name: 'fn' } as any,
-      newContent: { id: 'code_1', name: 'fn' } as any,
-      changeRecords: [{ propPath: path } as any],
-    });
+    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',
@@ -505,7 +531,11 @@ describe('describeCodeBlockGroup', () => {
       applied: false,
       steps: [
         {
-          step: { id: 'code_1', oldContent: { id: 'code_1', name: 'fn' } as any, newContent: null },
+          step: {
+            id: 'code_1',
+            opType: 'remove',
+            diff: [{ oldSchema: { id: 'code_1', name: 'fn' } }],
+          } as unknown as CodeBlockStepValue,
           index: 0,
           applied: false,
         },
@@ -550,12 +580,12 @@ describe('useHistoryList', () => {
     historyService.changePage({ id: 'p1' } as any);
     historyService.push({
       opType: 'add',
-      nodes: [{ id: 'n1', name: 'A' }],
+      diff: [{ newSchema: { id: 'n1', name: 'A' } }],
       modifiedNodeIds: new Map(),
     } as any);
     historyService.push({
       opType: 'remove',
-      removedItems: [{ node: { id: 'n2', name: 'B' } }],
+      diff: [{ oldSchema: { id: 'n2', name: 'B' } }],
       modifiedNodeIds: new Map(),
     } as any);
 
@@ -613,15 +643,15 @@ describe('useHistoryList', () => {
 
 describe('isPageStepRevertable', () => {
   test('add / remove 始终可回滚', () => {
-    expect(isPageStepRevertable({ opType: 'add', nodes: [{ id: 'n1' }] } as any)).toBe(true);
-    expect(isPageStepRevertable({ opType: 'remove', removedItems: [{ node: { id: 'n1' } }] } as any)).toBe(true);
+    expect(isPageStepRevertable({ opType: 'add', diff: [{ newSchema: { id: 'n1' } }] } as any)).toBe(true);
+    expect(isPageStepRevertable({ opType: 'remove', diff: [{ oldSchema: { id: 'n1' } }] } as any)).toBe(true);
   });
 
   test('update 每项都有 changeRecords 才可回滚', () => {
     expect(
       isPageStepRevertable({
         opType: 'update',
-        updatedItems: [{ oldNode: { id: 'n1' }, newNode: { id: 'n1' }, changeRecords: [{ propPath: 'style.color' }] }],
+        diff: [{ oldSchema: { id: 'n1' }, newSchema: { id: 'n1' }, changeRecords: [{ propPath: 'style.color' }] }],
       } as any),
     ).toBe(true);
   });
@@ -630,7 +660,7 @@ describe('isPageStepRevertable', () => {
     expect(
       isPageStepRevertable({
         opType: 'update',
-        updatedItems: [{ oldNode: { id: 'n1' }, newNode: { id: 'n1' } }],
+        diff: [{ oldSchema: { id: 'n1' }, newSchema: { id: 'n1' } }],
       } as any),
     ).toBe(false);
   });
@@ -639,53 +669,51 @@ describe('isPageStepRevertable', () => {
     expect(
       isPageStepRevertable({
         opType: 'update',
-        updatedItems: [
-          { oldNode: { id: 'n1' }, newNode: { id: 'n1' }, changeRecords: [{ propPath: 'a' }] },
-          { oldNode: { id: 'n2' }, newNode: { id: 'n2' } },
+        diff: [
+          { oldSchema: { id: 'n1' }, newSchema: { id: 'n1' }, changeRecords: [{ propPath: 'a' }] },
+          { oldSchema: { id: 'n2' }, newSchema: { id: 'n2' } },
         ],
       } as any),
     ).toBe(false);
   });
 
-  test('update 无 updatedItems 不可回滚', () => {
+  test('update 无 diff 不可回滚', () => {
     expect(isPageStepRevertable({ opType: 'update' } as any)).toBe(false);
   });
 });
 
 describe('isDataSourceStepRevertable', () => {
   test('新增 / 删除 始终可回滚', () => {
-    expect(isDataSourceStepRevertable({ oldSchema: null, newSchema: { id: 'ds_1' } } as any)).toBe(true);
-    expect(isDataSourceStepRevertable({ oldSchema: { id: 'ds_1' }, newSchema: null } as any)).toBe(true);
+    expect(isDataSourceStepRevertable({ diff: [{ newSchema: { id: 'ds_1' } }] } as any)).toBe(true);
+    expect(isDataSourceStepRevertable({ diff: [{ oldSchema: { id: 'ds_1' } }] } as any)).toBe(true);
   });
 
   test('更新有 changeRecords 才可回滚', () => {
     expect(
       isDataSourceStepRevertable({
-        oldSchema: { id: 'ds_1' },
-        newSchema: { id: 'ds_1' },
-        changeRecords: [{ propPath: 'title' }],
+        diff: [{ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' }, changeRecords: [{ propPath: 'title' }] }],
       } as any),
     ).toBe(true);
-    expect(isDataSourceStepRevertable({ oldSchema: { id: 'ds_1' }, newSchema: { id: 'ds_1' } } as any)).toBe(false);
+    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({ oldContent: null, newContent: { id: 'code_1' } } as any)).toBe(true);
-    expect(isCodeBlockStepRevertable({ oldContent: { id: 'code_1' }, newContent: null } as any)).toBe(true);
+    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({
-        oldContent: { id: 'code_1' },
-        newContent: { id: 'code_1' },
-        changeRecords: [{ propPath: 'content' }],
+        diff: [{ oldSchema: { id: 'code_1' }, newSchema: { id: 'code_1' }, changeRecords: [{ propPath: 'content' }] }],
       } as any),
     ).toBe(true);
-    expect(isCodeBlockStepRevertable({ oldContent: { id: 'code_1' }, newContent: { id: 'code_1' } } as any)).toBe(
-      false,
-    );
+    expect(
+      isCodeBlockStepRevertable({ diff: [{ oldSchema: { id: 'code_1' }, newSchema: { id: 'code_1' } }] } as any),
+    ).toBe(false);
   });
 });
diff --git a/packages/editor/tests/unit/services/codeBlock.spec.ts b/packages/editor/tests/unit/services/codeBlock.spec.ts
index 2017bb3d..89550ec2 100644
--- a/packages/editor/tests/unit/services/codeBlock.spec.ts
+++ b/packages/editor/tests/unit/services/codeBlock.spec.ts
@@ -176,8 +176,8 @@ describe('CodeBlockService - 历史记录接入', () => {
 
     expect(historyService.canUndoCodeBlock('new_code')).toBe(true);
     const step = historyService.undoCodeBlock('new_code');
-    expect(step?.oldContent).toBeNull();
-    expect(step?.newContent).toEqual(expect.objectContaining({ name: 'A' }));
+    expect(step?.diff?.[0]?.oldSchema).toBeUndefined();
+    expect(step?.diff?.[0]?.newSchema).toEqual(expect.objectContaining({ name: 'A' }));
   });
 
   test('setCodeDslByIdSync - 更新时入历史（oldContent / newContent 都非空）', async () => {
@@ -185,8 +185,8 @@ describe('CodeBlockService - 历史记录接入', () => {
     codeBlockService.setCodeDslByIdSync('a', { name: 'A2' } as any);
 
     const step = historyService.undoCodeBlock('a');
-    expect(step?.oldContent).toEqual({ name: 'A' });
-    expect(step?.newContent).toEqual(expect.objectContaining({ name: 'A2' }));
+    expect(step?.diff?.[0]?.oldSchema).toEqual({ name: 'A' });
+    expect(step?.diff?.[0]?.newSchema).toEqual(expect.objectContaining({ name: 'A2' }));
   });
 
   test('setCodeDslByIdSync - force=false 已存在时不入历史', async () => {
@@ -200,8 +200,8 @@ describe('CodeBlockService - 历史记录接入', () => {
     await codeBlockService.deleteCodeDslByIds(['a']);
 
     const step = historyService.undoCodeBlock('a');
-    expect(step?.oldContent).toEqual({ name: 'A' });
-    expect(step?.newContent).toBeNull();
+    expect(step?.diff?.[0]?.oldSchema).toEqual({ name: 'A' });
+    expect(step?.diff?.[0]?.newSchema).toBeUndefined();
   });
 
   test('deleteCodeDslByIds - 删除不存在的 id 不入历史', async () => {
@@ -218,7 +218,7 @@ describe('CodeBlockService - 历史记录接入', () => {
     });
 
     const step = historyService.undoCodeBlock('a');
-    expect(step?.changeRecords).toEqual([{ propPath: 'name', value: 'A2' }]);
+    expect(step?.diff?.[0]?.changeRecords).toEqual([{ propPath: 'name', value: 'A2' }]);
   });
 
   test('setCodeDslByIdSync - 不传 changeRecords 时 step.changeRecords 为 undefined', async () => {
@@ -227,7 +227,7 @@ describe('CodeBlockService - 历史记录接入', () => {
     codeBlockService.setCodeDslByIdSync('a', { name: 'A2' } as any);
 
     const step = historyService.undoCodeBlock('a');
-    expect(step?.changeRecords).toBeUndefined();
+    expect(step?.diff?.[0]?.changeRecords).toBeUndefined();
   });
 });
 
diff --git a/packages/editor/tests/unit/services/dataSource.spec.ts b/packages/editor/tests/unit/services/dataSource.spec.ts
index 64d7f7f0..1244334c 100644
--- a/packages/editor/tests/unit/services/dataSource.spec.ts
+++ b/packages/editor/tests/unit/services/dataSource.spec.ts
@@ -135,8 +135,8 @@ describe('DataSource service - 历史记录接入', () => {
     const ds = dataSource.add({ title: 'a', type: 'base' } as any);
     expect(historyService.canUndoDataSource(ds.id!)).toBe(true);
     const step = historyService.undoDataSource(ds.id!);
-    expect(step?.oldSchema).toBeNull();
-    expect(step?.newSchema?.title).toBe('a');
+    expect(step?.diff?.[0]?.oldSchema).toBeUndefined();
+    expect(step?.diff?.[0]?.newSchema?.title).toBe('a');
   });
 
   test('update - 入历史，oldSchema 是旧值，newSchema 是新值', () => {
@@ -146,8 +146,8 @@ describe('DataSource service - 历史记录接入', () => {
 
     dataSource.update({ ...created, title: 'b' } as any);
     const step = historyService.undoDataSource(created.id!);
-    expect(step?.oldSchema?.title).toBe('a');
-    expect(step?.newSchema?.title).toBe('b');
+    expect(step?.diff?.[0]?.oldSchema?.title).toBe('a');
+    expect(step?.diff?.[0]?.newSchema?.title).toBe('b');
   });
 
   test('remove - 入历史（newSchema=null）', () => {
@@ -156,8 +156,8 @@ describe('DataSource service - 历史记录接入', () => {
 
     dataSource.remove(created.id!);
     const step = historyService.undoDataSource(created.id!);
-    expect(step?.oldSchema?.title).toBe('a');
-    expect(step?.newSchema).toBeNull();
+    expect(step?.diff?.[0]?.oldSchema?.title).toBe('a');
+    expect(step?.diff?.[0]?.newSchema).toBeUndefined();
   });
 
   test('remove - 不存在的 id 不入历史', () => {
@@ -174,7 +174,7 @@ describe('DataSource service - 历史记录接入', () => {
     });
 
     const step = historyService.undoDataSource(created.id!);
-    expect(step?.changeRecords).toEqual([{ propPath: 'title', value: 'b' }]);
+    expect(step?.diff?.[0]?.changeRecords).toEqual([{ propPath: 'title', value: 'b' }]);
   });
 
   test('update - 不传 changeRecords 时 step.changeRecords 为 undefined', () => {
@@ -183,7 +183,7 @@ describe('DataSource service - 历史记录接入', () => {
 
     dataSource.update({ ...created, title: 'b' } as any);
     const step = historyService.undoDataSource(created.id!);
-    expect(step?.changeRecords).toBeUndefined();
+    expect(step?.diff?.[0]?.changeRecords).toBeUndefined();
   });
 });
 
diff --git a/packages/editor/tests/unit/services/editor.spec.ts b/packages/editor/tests/unit/services/editor.spec.ts
index 15ca2adc..c98a3018 100644
--- a/packages/editor/tests/unit/services/editor.spec.ts
+++ b/packages/editor/tests/unit/services/editor.spec.ts
@@ -779,7 +779,7 @@ describe('revertPageStepById', () => {
     expect(typeof uuid).toBe('string');
 
     const addedStep = historyService.getPageStepList().find((e) => e.step.uuid === uuid)!.step;
-    const addedId = addedStep.nodes![0].id;
+    const addedId = addedStep.diff[0].newSchema!.id;
     expect(editorService.getNodeById(addedId)).toBeTruthy();
 
     const reverted = await editorService.revertPageStepById(uuid!);
diff --git a/packages/editor/tests/unit/services/history-persist.spec.ts b/packages/editor/tests/unit/services/history-persist.spec.ts
index 0c2abbd6..2a251e2c 100644
--- a/packages/editor/tests/unit/services/history-persist.spec.ts
+++ b/packages/editor/tests/unit/services/history-persist.spec.ts
@@ -206,8 +206,8 @@ describe('history service - IndexedDB 持久化', () => {
     await history.restoreFromIndexedDB();
 
     const current = (history.state.codeBlockState as any).code_1.getCurrentElement();
-    expect(typeof current.newContent.code).toBe('function');
-    expect(current.newContent.code()).toBe(42);
+    expect(typeof current.diff[0].newSchema.code).toBe('function');
+    expect(current.diff[0].newSchema.code()).toBe(42);
   });
 
   test('restoreFromIndexedDB 找不到记录时返回 null 且不改动当前状态', async () => {
diff --git a/packages/editor/tests/unit/services/history.spec.ts b/packages/editor/tests/unit/services/history.spec.ts
index d79f54c4..f1b738b6 100644
--- a/packages/editor/tests/unit/services/history.spec.ts
+++ b/packages/editor/tests/unit/services/history.spec.ts
@@ -143,8 +143,8 @@ describe('history service - codeBlock', () => {
 
     expect(step).not.toBeNull();
     expect(step?.id).toBe('code_1');
-    expect(step?.oldContent).toBeNull();
-    expect(step?.newContent).toEqual({ name: 'A', content: 'x' });
+    expect(step?.diff?.[0]?.oldSchema).toBeUndefined();
+    expect(step?.diff?.[0]?.newSchema).toEqual({ name: 'A', content: 'x' });
     expect((history.state.codeBlockState as any).code_1).toBeDefined();
     expect(history.canUndoCodeBlock('code_1')).toBe(true);
     expect(fn).toHaveBeenCalledWith('code_1', expect.objectContaining({ id: 'code_1' }));
@@ -179,11 +179,11 @@ describe('history service - codeBlock', () => {
 
     expect(history.canUndoCodeBlock('code_1')).toBe(true);
     const undone = history.undoCodeBlock('code_1');
-    expect(undone?.newContent).toEqual({ name: 'B' });
+    expect(undone?.diff?.[0]?.newSchema).toEqual({ name: 'B' });
     expect(history.canRedoCodeBlock('code_1')).toBe(true);
 
     const redone = history.redoCodeBlock('code_1');
-    expect(redone?.newContent).toEqual({ name: 'B' });
+    expect(redone?.diff?.[0]?.newSchema).toEqual({ name: 'B' });
   });
 
   test('undoCodeBlock 对不存在 id 返回 null', () => {
@@ -229,8 +229,8 @@ describe('history service - dataSource', () => {
 
     expect(step).not.toBeNull();
     expect(step?.id).toBe('ds_1');
-    expect(step?.oldSchema).toBeNull();
-    expect(step?.newSchema?.title).toBe('A');
+    expect(step?.diff?.[0]?.oldSchema).toBeUndefined();
+    expect(step?.diff?.[0]?.newSchema?.title).toBe('A');
     expect((history.state.dataSourceState as any).ds_1).toBeDefined();
     expect(history.canUndoDataSource('ds_1')).toBe(true);
     expect(fn).toHaveBeenCalledWith('ds_1', expect.objectContaining({ id: 'ds_1' }));
@@ -267,10 +267,10 @@ describe('history service - dataSource', () => {
     });
 
     const undone = history.undoDataSource('ds_1');
-    expect(undone?.newSchema?.title).toBe('B');
+    expect(undone?.diff?.[0]?.newSchema?.title).toBe('B');
 
     const redone = history.redoDataSource('ds_1');
-    expect(redone?.newSchema?.title).toBe('B');
+    expect(redone?.diff?.[0]?.newSchema?.title).toBe('B');
   });
 
   test('undoDataSource 对不存在 id 返回 null', () => {