diff --git a/packages/vue/src/index.ts b/packages/vue/src/index.ts
index 9b99fa01b..549b1dbf8 100644
--- a/packages/vue/src/index.ts
+++ b/packages/vue/src/index.ts
@@ -48,6 +48,7 @@ export { useNodeFontStatus } from '#vue/shared/font-status/use'
 export { usePropScrub } from '#vue/controls/prop-scrub/use'
 export { toolCursor } from '#vue/editor/tool-cursor'
 export { testId, testIdSelector } from '#vue/testing/test-id'
+export { vTestId } from '#vue/testing/v-test-id'
 export type {
   RequiredTestIdProps,
   TestId,
diff --git a/packages/vue/src/testing/v-test-id.ts b/packages/vue/src/testing/v-test-id.ts
new file mode 100644
index 000000000..3298c3fe5
--- /dev/null
+++ b/packages/vue/src/testing/v-test-id.ts
@@ -0,0 +1,17 @@
+import type { Directive } from 'vue'
+
+import type { TestId } from './test-id'
+
+function applyTestId(el: HTMLElement, value?: TestId | null) {
+  if (value) el.setAttribute('data-test-id', value)
+  else el.removeAttribute('data-test-id')
+}
+
+export const vTestId: Directive<HTMLElement, TestId | null | undefined> = {
+  mounted(el, binding) {
+    applyTestId(el, binding.value)
+  },
+  updated(el, binding) {
+    applyTestId(el, binding.value)
+  }
+}
diff --git a/src/components/AppMenu.vue b/src/components/AppMenu.vue
index 3f0387ea6..5b582373c 100644
--- a/src/components/AppMenu.vue
+++ b/src/components/AppMenu.vue
@@ -19,7 +19,7 @@ import {
 
 import IconChevronRight from '~icons/lucide/chevron-right'
 
-import { testId as testIdAttr, useI18n } from '@open-pencil/vue'
+import { vTestId, useI18n } from '@open-pencil/vue'
 import { useMenuUI } from '@/components/ui/menu'
 import { IS_TAURI } from '@/constants'
 import { useAppMenu } from '@/app/shell/menu/app-menu'
@@ -91,7 +91,7 @@ const subMenuCls = useMenuUI({ content: 'min-w-44' })
       <MenubarRoot class="scrollbar-none flex items-center gap-0.5 overflow-x-auto">
         <MenubarMenu v-for="menu in topMenus" :key="menu.label">
           <MenubarTrigger
-            v-bind="testIdAttr(`menubar-${menu.label.toLowerCase()}`)"
+            v-test-id="`menubar-${menu.label.toLowerCase()}`"
             class="flex cursor-pointer items-center rounded px-2 py-1 text-xs text-muted transition-colors select-none hover:bg-hover hover:text-surface data-[state=open]:bg-hover data-[state=open]:text-surface"
           >
             {{ menu.label }}
diff --git a/src/components/CanvasMenu.vue b/src/components/CanvasMenu.vue
index 69fb38299..b9b0b8e67 100644
--- a/src/components/CanvasMenu.vue
+++ b/src/components/CanvasMenu.vue
@@ -9,7 +9,7 @@ import {
   ContextMenuPortal
 } from 'reka-ui'
 import {
-  testId as testIdAttr,
+  vTestId,
   useEditorCommands,
   useI18n,
   useMenuModel,
@@ -126,7 +126,7 @@ const contextCommandTestIds: Record<string, string> = {
       </ContextMenuSub>
       <ContextMenuItem
         v-else
-        v-bind="testIdAttr(item.id ? contextCommandTestIds[item.id] : undefined)"
+        v-test-id="item.id ? contextCommandTestIds[item.id] : undefined"
         :class="canvasMenuItemClass(item.label, cls)"
         :disabled="item.disabled"
         @select="item.action?.()"
diff --git a/src/components/PickerSlider.vue b/src/components/PickerSlider.vue
index cdc9478f5..401e242e9 100644
--- a/src/components/PickerSlider.vue
+++ b/src/components/PickerSlider.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { inputNumberValue, testId as testIdAttr, type TestIdProps } from '@open-pencil/vue'
+import { inputNumberValue, vTestId, type TestIdProps } from '@open-pencil/vue'
 import { usePickerSliderUI } from './ui/picker-slider'
 
 type PickerSliderDisplay = {
@@ -64,7 +64,7 @@ function thumbLeft(): string {
 </script>
 
 <template>
-  <div :class="cls.root" v-bind="testIdAttr(testId)">
+  <div :class="cls.root" v-test-id="testId">
     <span :class="cls.label">{{ label }}</span>
     <div :class="cls.track">
       <div :class="cls.gradient" :style="gradientStyle" />
diff --git a/src/components/Toolbar/ToolButton.vue b/src/components/Toolbar/ToolButton.vue
index e945e2320..055b52979 100644
--- a/src/components/Toolbar/ToolButton.vue
+++ b/src/components/Toolbar/ToolButton.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { testId as testIdAttr, type RequiredTestIdProps } from '@open-pencil/vue'
+import { vTestId, type RequiredTestIdProps } from '@open-pencil/vue'
 import type { Component } from 'vue'
 
 interface ToolButtonProps extends RequiredTestIdProps {
@@ -22,7 +22,7 @@ const emit = defineEmits<{
 
 <template>
   <button
-    v-bind="testIdAttr(testId)"
+    v-test-id="testId"
     class="flex size-8 cursor-pointer items-center justify-center border-none transition-colors"
     :class="[
       mobile ? 'rounded-[6px] select-none' : 'rounded-lg',
diff --git a/src/components/Toolbar/ToolFlyout.vue b/src/components/Toolbar/ToolFlyout.vue
index 0e097bb83..4051ce223 100644
--- a/src/components/Toolbar/ToolFlyout.vue
+++ b/src/components/Toolbar/ToolFlyout.vue
@@ -11,7 +11,7 @@ import IconChevronDown from '~icons/lucide/chevron-down'
 
 import { menu } from '@/components/ui/menu'
 import ToolButton from '@/components/Toolbar/ToolButton.vue'
-import { testId as testIdAttr, ToolbarItem } from '@open-pencil/vue'
+import { vTestId, ToolbarItem } from '@open-pencil/vue'
 
 import type { Tool } from '@open-pencil/vue'
 import type { EditorToolDef } from '@open-pencil/core/editor'
@@ -69,7 +69,7 @@ function activeKeyForTool() {
     <DropdownMenuRoot>
       <DropdownMenuTrigger as-child>
         <button
-          v-bind="testIdAttr(`${mobile ? 'mobile-' : ''}toolbar-flyout-${tool.key.toLowerCase()}`)"
+          v-test-id="`${mobile ? 'mobile-' : ''}toolbar-flyout-${tool.key.toLowerCase()}`"
           class="flex h-8 w-3 cursor-pointer items-center justify-center border-none transition-colors"
           :class="[
             mobile ? 'rounded-[6px] select-none' : 'rounded-lg',
@@ -93,7 +93,7 @@ function activeKeyForTool() {
             :tool="sub"
           >
             <DropdownMenuItem
-              v-bind="testIdAttr(`${mobile ? 'mobile-' : ''}toolbar-flyout-item-${sub.toLowerCase()}`)"
+              v-test-id="`${mobile ? 'mobile-' : ''}toolbar-flyout-item-${sub.toLowerCase()}`"
               :class="menu().item({ class: subActive ? 'bg-accent text-white' : undefined })"
               @select="actions.select"
             >
diff --git a/src/components/Toolbar/ToolbarActionGroup.vue b/src/components/Toolbar/ToolbarActionGroup.vue
index fef8362e1..eb5ab3ae6 100644
--- a/src/components/Toolbar/ToolbarActionGroup.vue
+++ b/src/components/Toolbar/ToolbarActionGroup.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { testId as testIdAttr } from '@open-pencil/vue'
+import { vTestId } from '@open-pencil/vue'
 
 import type { ToolbarActionItem } from '@/components/Toolbar/types'
 
@@ -17,7 +17,7 @@ const emit = defineEmits<{
   <button
     v-for="item in actions"
     :key="item.label"
-    v-bind="testIdAttr(`${testPrefix}-${item.label.toLowerCase()}`)"
+    v-test-id="`${testPrefix}-${item.label.toLowerCase()}`"
     class="flex size-8 cursor-pointer items-center justify-center rounded-[6px] border-none bg-transparent text-muted transition-colors select-none active:bg-hover active:text-surface"
     @click="emit('action', item)"
   >
diff --git a/src/components/VariablesDialog.vue b/src/components/VariablesDialog.vue
index 6034152e6..de9416373 100644
--- a/src/components/VariablesDialog.vue
+++ b/src/components/VariablesDialog.vue
@@ -27,7 +27,7 @@ import {
 } from 'reka-ui'
 import { FlexRender } from '@tanstack/vue-table'
 
-import { testId as testIdAttr, useI18n, useVariablesEditor } from '@open-pencil/vue'
+import { vTestId, useI18n, useVariablesEditor } from '@open-pencil/vue'
 
 import IconHash from '~icons/lucide/hash'
 import IconPalette from '~icons/lucide/palette'
@@ -390,7 +390,7 @@ function modeId(columnId: string): string {
                         v-for="item in variableTypes"
                         :key="item.type"
                         :class="menuCls.item"
-                        v-bind="testIdAttr(`variables-add-${item.type.toLowerCase()}`)"
+                        v-test-id="`variables-add-${item.type.toLowerCase()}`"
                         @select="ctx.addVariable(item.type)"
                       >
                         <component :is="variableTypeIcons[item.type]" :class="menuCls.icon" />
diff --git a/src/components/chat/AcpPermissionDialog.vue b/src/components/chat/AcpPermissionDialog.vue
index 527da3508..0c7fe3a6f 100644
--- a/src/components/chat/AcpPermissionDialog.vue
+++ b/src/components/chat/AcpPermissionDialog.vue
@@ -10,7 +10,7 @@ import {
   AlertDialogTitle
 } from 'reka-ui'
 import { computed } from 'vue'
-import { testId as testIdAttr } from '@open-pencil/vue'
+import { vTestId } from '@open-pencil/vue'
 
 import {
   currentPermission,
@@ -86,7 +86,7 @@ function handleDismiss() {
           <AlertDialogAction
             v-for="opt in allowOptions"
             :key="opt.optionId"
-            v-bind="testIdAttr(`acp-permission-option-${opt.kind}`)"
+            v-test-id="`acp-permission-option-${opt.kind}`"
             class="w-full rounded bg-accent px-3 py-1.5 text-xs font-medium text-white hover:bg-accent/90"
             @click="respondToPermission(opt.optionId)"
           >
@@ -96,7 +96,7 @@ function handleDismiss() {
           <AlertDialogCancel
             v-for="opt in rejectOptions"
             :key="opt.optionId"
-            v-bind="testIdAttr(`acp-permission-option-${opt.kind}`)"
+            v-test-id="`acp-permission-option-${opt.kind}`"
             class="w-full rounded border border-border bg-canvas px-3 py-1.5 text-xs text-muted hover:bg-hover hover:text-surface"
             @click="respondToPermission(opt.optionId)"
           >
diff --git a/src/components/chat/ChatMessage.vue b/src/components/chat/ChatMessage.vue
index 151b857a0..acda55e84 100644
--- a/src/components/chat/ChatMessage.vue
+++ b/src/components/chat/ChatMessage.vue
@@ -2,7 +2,7 @@
 import { isTextUIPart, isToolUIPart, getToolName } from 'ai'
 import { CollapsibleContent, CollapsibleRoot, CollapsibleTrigger } from 'reka-ui'
 import { Markdown } from 'vue-stream-markdown'
-import { testId as testIdAttr } from '@open-pencil/vue'
+import { vTestId } from '@open-pencil/vue'
 import 'vue-stream-markdown/index.css'
 
 import type { UIDataTypes, UIMessage, UIMessagePart, UITools } from 'ai'
@@ -41,7 +41,7 @@ function partKey(part: UIMessagePart<UIDataTypes, UITools>, index: number): stri
 
 <template>
   <div
-    v-bind="testIdAttr(`chat-message-${message.role}`)"
+    v-test-id="`chat-message-${message.role}`"
     :class="message.role === 'user' ? 'flex justify-end' : ''"
   >
     <div class="min-w-0 space-y-1.5" :class="message.role === 'user' ? 'max-w-[85%]' : ''">
diff --git a/src/components/properties/BoundVariableButton.vue b/src/components/properties/BoundVariableButton.vue
index eeb33597f..fb7019193 100644
--- a/src/components/properties/BoundVariableButton.vue
+++ b/src/components/properties/BoundVariableButton.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { testId as testIdAttr, type TestIdProps } from '@open-pencil/vue'
+import { vTestId, type TestIdProps } from '@open-pencil/vue'
 
 import Tip from '@/components/ui/Tip.vue'
 
@@ -17,7 +17,7 @@ const emit = defineEmits<{
 <template>
   <Tip :label="label">
     <button
-      v-bind="testIdAttr(testId)"
+      v-test-id="testId"
       class="shrink-0 cursor-pointer border-none bg-transparent p-0 text-violet-400 hover:text-surface"
       @click="emit('detach')"
     >
diff --git a/src/components/properties/ColorStyleRow.vue b/src/components/properties/ColorStyleRow.vue
index 1a02a3b63..c6f13dbfa 100644
--- a/src/components/properties/ColorStyleRow.vue
+++ b/src/components/properties/ColorStyleRow.vue
@@ -4,7 +4,7 @@ import BoundVariableButton from '@/components/properties/BoundVariableButton.vue
 import VariablePickerPopover from '@/components/properties/VariablePickerPopover.vue'
 import { useIconButtonUI } from '@/components/ui/icon-button'
 
-import { testId as testIdAttr, useI18n } from '@open-pencil/vue'
+import { vTestId, useI18n } from '@open-pencil/vue'
 
 import {
   opacityFromPercent,
@@ -99,7 +99,7 @@ const { panels, dialogs } = useI18n()
     />
 
     <button
-      v-bind="testIdAttr(visibilityTestId)"
+      v-test-id="visibilityTestId"
       :data-visible="item.visible ? 'true' : 'false'"
       class="shrink-0 cursor-pointer border-none bg-transparent p-0 text-muted hover:text-surface"
       @click="emit('toggleVisibility')"
diff --git a/src/components/properties/EffectsSection.vue b/src/components/properties/EffectsSection.vue
index 325c0c949..9d021a151 100644
--- a/src/components/properties/EffectsSection.vue
+++ b/src/components/properties/EffectsSection.vue
@@ -4,7 +4,7 @@ import ColorInput from '@/components/ColorPicker/ColorInput.vue'
 import ScrubInput from '@/components/ScrubInput.vue'
 import { useIconButtonUI } from '@/components/ui/icon-button'
 import { useSectionUI } from '@/components/ui/section'
-import { PropertyListRoot, testId as testIdAttr, useEffectsControls, useI18n } from '@open-pencil/vue'
+import { PropertyListRoot, vTestId, useEffectsControls, useI18n } from '@open-pencil/vue'
 
 import { colorToCSS } from '@open-pencil/core/color'
 
@@ -65,7 +65,7 @@ const sectionCls = useSectionUI()
           />
 
           <button
-            v-bind="testIdAttr(`effect-visibility-${i}`)"
+            v-test-id="`effect-visibility-${i}`"
             :data-visible="effect.visible ? 'true' : 'false'"
             class="cursor-pointer border-none bg-transparent p-0 text-muted hover:text-surface"
             @click="actions.toggleVisibility(i)"
diff --git a/src/components/properties/LayoutSection/AutoLayoutControls.vue b/src/components/properties/LayoutSection/AutoLayoutControls.vue
index 7aa244d01..0dcdb6b43 100644
--- a/src/components/properties/LayoutSection/AutoLayoutControls.vue
+++ b/src/components/properties/LayoutSection/AutoLayoutControls.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import Tip from '@/components/ui/Tip.vue'
-import { testId as testIdAttr, useI18n, useLayoutControlsContext } from '@open-pencil/vue'
+import { vTestId, useI18n, useLayoutControlsContext } from '@open-pencil/vue'
 
 import type { LayoutMode } from '@open-pencil/core/scene-graph'
 
@@ -42,7 +42,7 @@ const layoutModes: { mode: LayoutMode; test: string }[] = [
     <button
       v-for="dir in layoutModes"
       :key="dir.mode"
-      v-bind="testIdAttr(`layout-direction-${dir.test}`)"
+      v-test-id="`layout-direction-${dir.test}`"
       class="flex cursor-pointer items-center justify-center rounded border px-2 py-1"
       :class="
         (dir.mode === 'GRID' ? ctx.isGrid : ctx.node.layoutMode === dir.mode)
diff --git a/src/components/properties/LayoutSection/SizeControls.vue b/src/components/properties/LayoutSection/SizeControls.vue
index 92d7c9bd7..5346e6bea 100644
--- a/src/components/properties/LayoutSection/SizeControls.vue
+++ b/src/components/properties/LayoutSection/SizeControls.vue
@@ -19,6 +19,7 @@ import VariablePickerPopover from '@/components/properties/VariablePickerPopover
 import { useSelectUI } from '@/components/ui/select'
 import {
   testId as testIdAttr,
+  vTestId,
   useI18n,
   useLayoutControlsContext,
   useNumberVariableBinding
@@ -361,7 +362,7 @@ function handleSizeSelect(axis: 'width' | 'height', value: SizeSelectValue) {
               @update:model-value="(value) => handleLimitSelect(item.prop, value as string)"
             >
               <SelectTrigger
-                v-bind="testIdAttr(`${item.testId}-menu`)"
+                v-test-id="`${item.testId}-menu`"
                 :reference="limitFieldAnchor(index)"
                 class="flex shrink-0 cursor-pointer items-center self-stretch border-none bg-transparent px-1 text-[11px] text-muted outline-none"
                 @pointerdown.stop
@@ -403,7 +404,7 @@ function handleSizeSelect(axis: 'width' | 'height', value: SizeSelectValue) {
               @update:model-value="(value) => handleLimitSelect(item.prop, value as string)"
             >
               <SelectTrigger
-                v-bind="testIdAttr(`${item.testId}-menu`)"
+                v-test-id="`${item.testId}-menu`"
                 :reference="limitFieldAnchor(index)"
                 class="flex shrink-0 cursor-pointer items-center self-stretch border-none bg-transparent px-1 text-[11px] text-muted outline-none"
                 @pointerdown.stop
diff --git a/src/components/properties/VariablePickerPopover.vue b/src/components/properties/VariablePickerPopover.vue
index 766b9f809..b4d436b6e 100644
--- a/src/components/properties/VariablePickerPopover.vue
+++ b/src/components/properties/VariablePickerPopover.vue
@@ -12,7 +12,7 @@ import {
 
 import { computed, nextTick, ref, watch } from 'vue'
 
-import { testId as testIdAttr } from '@open-pencil/vue'
+import { vTestId } from '@open-pencil/vue'
 
 import type { Variable } from '@open-pencil/core/scene-graph'
 
@@ -79,7 +79,7 @@ function submitCreate() {
 <template>
   <PopoverRoot v-model:open="open">
     <PopoverTrigger
-      v-bind="testIdAttr(triggerTestId)"
+      v-test-id="triggerTestId"
       :aria-label="triggerLabel"
       :title="triggerLabel"
       class="shrink-0 cursor-pointer border-none bg-transparent p-0 text-muted hover:text-surface"
@@ -146,7 +146,7 @@ function submitCreate() {
                 class="min-w-0 flex-1 rounded border border-border bg-transparent px-1.5 py-1 text-[11px] text-surface outline-none placeholder:text-muted focus:border-accent"
               />
               <button
-                v-bind="testIdAttr(createTestId)"
+                v-test-id="createTestId"
                 :disabled="!canCreate"
                 class="rounded border border-border bg-panel px-1.5 py-1 text-[11px] text-surface hover:bg-hover disabled:cursor-not-allowed disabled:opacity-50"
                 type="submit"
@@ -156,7 +156,7 @@ function submitCreate() {
             </form>
             <button
               v-else
-              v-bind="testIdAttr(createTestId)"
+              v-test-id="createTestId"
               class="flex w-full cursor-pointer items-center gap-1.5 bg-transparent px-2 py-1.5 text-left text-[11px] text-muted hover:bg-hover hover:text-surface"
               @click="startCreate"
             >
diff --git a/src/components/ui/AppGroupedSelect.vue b/src/components/ui/AppGroupedSelect.vue
index b9686accf..35d5a476f 100644
--- a/src/components/ui/AppGroupedSelect.vue
+++ b/src/components/ui/AppGroupedSelect.vue
@@ -11,7 +11,7 @@ import {
   SelectTrigger,
   SelectViewport
 } from 'reka-ui'
-import { testId as testIdAttr, type TestIdProps } from '@open-pencil/vue'
+import { vTestId, type TestIdProps } from '@open-pencil/vue'
 
 import { useSelectUI } from '@/components/ui/select'
 
@@ -57,7 +57,7 @@ const separator = ui?.separator ?? 'mx-1 my-1 h-px bg-border'
 
 <template>
   <SelectRoot v-model="modelValue">
-    <SelectTrigger v-bind="testIdAttr(testId)" :class="select.trigger">
+    <SelectTrigger v-test-id="testId" :class="select.trigger">
       <slot name="value">{{ displayValue }}</slot>
       <icon-lucide-chevron-down class="size-2.5 shrink-0 text-muted" />
     </SelectTrigger>
diff --git a/src/components/ui/AppSelect.vue b/src/components/ui/AppSelect.vue
index 9a6a94b96..9af13efc8 100644
--- a/src/components/ui/AppSelect.vue
+++ b/src/components/ui/AppSelect.vue
@@ -11,7 +11,7 @@ import {
   SelectViewport
 } from 'reka-ui'
 
-import { testId as testIdAttr, type TestIdProps } from '@open-pencil/vue'
+import { vTestId, type TestIdProps } from '@open-pencil/vue'
 
 import { useSelectUI } from '@/components/ui/select'
 import type { SelectUi } from '@/components/ui/select'
@@ -47,7 +47,7 @@ const indicator = ui?.indicator ?? 'absolute left-1.5 inline-flex items-center j
 
 <template>
   <SelectRoot v-model="modelValue">
-    <SelectTrigger v-bind="testIdAttr(testId)" :class="select.trigger">
+    <SelectTrigger v-test-id="testId" :class="select.trigger">
       <SelectValue :placeholder="placeholder" />
       <icon-lucide-chevron-down class="ml-1 size-3 shrink-0 text-muted" />
     </SelectTrigger>