diff --git a/frontend/src/views/accounts/components/AccountBatchEditModal.vue b/frontend/src/views/accounts/components/AccountBatchEditModal.vue
index 2a16d56b6..3d2aaaf56 100644
--- a/frontend/src/views/accounts/components/AccountBatchEditModal.vue
+++ b/frontend/src/views/accounts/components/AccountBatchEditModal.vue
@@ -85,7 +85,7 @@ const schedulingMode = computed({
     width="48rem"
     :show-close="!saving" :close-on-click-modal="!saving" :close-on-press-escape="!saving"
   >
-    <ZForm ref="formElement" :model="form" :rules="rules" scroll-to-error focus-on-error novalidate @submit="requestSave">
+    <ZForm ref="formElement" :model="form" :rules="rules" :validate-on-rule-change="false" scroll-to-error focus-on-error novalidate @submit="requestSave">
       <AccountSettingsFields
         v-model:concurrency-limit="concurrencyLimit"
         v-model:weight="weight"
diff --git a/frontend/src/views/accounts/components/AccountEditModal.vue b/frontend/src/views/accounts/components/AccountEditModal.vue
index 44bad0432..dbb5eebee 100644
--- a/frontend/src/views/accounts/components/AccountEditModal.vue
+++ b/frontend/src/views/accounts/components/AccountEditModal.vue
@@ -86,7 +86,7 @@ async function requestSave() {
     :show-close="!saving" :close-on-click-modal="!saving" :close-on-press-escape="!saving"
     @closed="emit('afterLeave')"
   >
-    <ZForm v-if="account" ref="formElement" :model="form" :rules="rules" scroll-to-error focus-on-error novalidate @submit="requestSave">
+    <ZForm v-if="account" ref="formElement" :model="form" :rules="rules" :validate-on-rule-change="false" scroll-to-error focus-on-error novalidate @submit="requestSave">
       <div
         class="flex flex-wrap items-center justify-between gap-4 rounded-z bg-z-fill-quaternary px-4 py-3.5"
       >
diff --git a/frontend/src/views/accounts/components/AccountModelAccessField.vue b/frontend/src/views/accounts/components/AccountModelAccessField.vue
index 86b2a84b4..4cd417f9b 100644
--- a/frontend/src/views/accounts/components/AccountModelAccessField.vue
+++ b/frontend/src/views/accounts/components/AccountModelAccessField.vue
@@ -23,9 +23,7 @@ const { t } = useI18n({ useScope: 'global' })
 const model = defineModel<AccountModelAccess | undefined>({ required: true })
 const formItem = useTemplateRef<InstanceType<typeof ZFormItem>>('modelAccessItem')
 const refreshButton = useTemplateRef<InstanceType<typeof ZIconButton>>('refreshButton')
-watch(model, () => {
-  void formItem.value?.validate('change').catch(() => undefined)
-})
+watch(model, () => formItem.value?.clearValidate())
 // 未取得目录时不能判断缺失，成功返回空目录则可以
 const catalog = ref<Array<{ id: string, label: string }>>()
 const catalogObservedAtDisplay = ref<string>()
diff --git a/frontend/src/views/accounts/components/account-create-modal/index.vue b/frontend/src/views/accounts/components/account-create-modal/index.vue
index 512b9c18d..911d0b875 100644
--- a/frontend/src/views/accounts/components/account-create-modal/index.vue
+++ b/frontend/src/views/accounts/components/account-create-modal/index.vue
@@ -159,7 +159,7 @@ async function requestCreate() {
         </div>
       </div>
 
-      <ZForm v-if="view.configuring" ref="formElement" :model="form" :rules="settingsRules" scroll-to-error focus-on-error novalidate @submit="continueToImport">
+      <ZForm v-if="view.configuring" ref="formElement" :model="form" :rules="settingsRules" :validate-on-rule-change="false" scroll-to-error focus-on-error novalidate @submit="continueToImport">
         <AccountSetupFields v-model="form" :disabled="busy" :groups="groups" :groups-loading="groupsLoading" />
       </ZForm>
       <template v-if="!view.configuring">
diff --git a/frontend/src/views/accounts/composables/useAccountSettingsFormRules.ts b/frontend/src/views/accounts/composables/useAccountSettingsFormRules.ts
index 3cdcae4c9..1524de8a4 100644
--- a/frontend/src/views/accounts/composables/useAccountSettingsFormRules.ts
+++ b/frontend/src/views/accounts/composables/useAccountSettingsFormRules.ts
@@ -50,7 +50,8 @@ export function useAccountSettingsFormRules(
       message: t('accounts.scheduling.weightMustBeIntegerFromTo'),
     },
     modelAccess: {
-      trigger: 'change',
+      // 模式切换允许暂时为空，完整配置在提交时校验
+      trigger: [],
       validator: () => {
         const error = accountModelAccessError(form().modelAccess)
         return error
diff --git a/frontend/src/views/plugins/components/PluginInstallModal.vue b/frontend/src/views/plugins/components/PluginInstallModal.vue
index bab4b6a30..1bb3adea6 100644
--- a/frontend/src/views/plugins/components/PluginInstallModal.vue
+++ b/frontend/src/views/plugins/components/PluginInstallModal.vue
@@ -458,6 +458,7 @@ watch(() => props.mode, () => {
   pendingAuthentication.value = false
   credentialDraft.value = null
 })
+watch(() => githubForm.allowPrerelease, () => formRef.value?.clearValidate('tag'))
 watch([pendingAuthentication, credentialDraft], () => {
   emit('resetVerification')
   if (props.mode === 'github') {
@@ -507,7 +508,7 @@ watch(
       class="mb-5 w-full"
       @update:model-value="changeMode"
     />
-    <ZForm v-if="!verified" ref="formElement" :model="connectionForm" :rules="rules" scroll-to-error focus-on-error novalidate @submit="mode === 'github' && !release ? queryRelease() : verifySelected()">
+    <ZForm v-if="!verified" ref="formElement" :model="connectionForm" :rules="rules" :validate-on-rule-change="false" scroll-to-error focus-on-error novalidate @submit="mode === 'github' && !release ? queryRelease() : verifySelected()">
       <div v-if="mode === 'upload'">
         <ZFormItem :label="t('plugins.assets.packageLabel')" required>
           <!-- 原生文件输入放在样式化上传区内，保留键盘与读屏语义。 -->
@@ -552,7 +553,7 @@ watch(
             </template>
           </ZInput>
         </ZFormItem>
-        <ZFormItem prop="tag" :show-message="false" :label="t('plugins.installation.tagLabel')">
+        <ZFormItem prop="tag" :label="t('plugins.installation.tagLabel')">
           <template #label-extra>
             <PluginHelpPopover :label="t('plugins.installation.tagHelpTitle')">
               {{ t('plugins.installation.tagHelp') }}
diff --git a/frontend/src/views/settings/components/error-protection/AccountErrorProtectionCard.vue b/frontend/src/views/settings/components/error-protection/AccountErrorProtectionCard.vue
index f4a5859e2..defc67f88 100644
--- a/frontend/src/views/settings/components/error-protection/AccountErrorProtectionCard.vue
+++ b/frontend/src/views/settings/components/error-protection/AccountErrorProtectionCard.vue
@@ -5,7 +5,7 @@ import { ZButton, ZCard, ZCheckbox, ZFormItem, ZIconButton, ZInput, ZPopover, ZS
 
 import { Activity, CircleAlert, Gauge, Plus, Snowflake, Timer } from '@lucide/vue'
 
-import { computed, shallowRef, useId } from 'vue'
+import { computed, shallowRef, useId, useTemplateRef, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { generateRequestId } from '@/utils/operation'
 import { createProtectionCondition, protectionLimits } from './form'
@@ -16,6 +16,9 @@ const props = defineProps<{ disabled: boolean }>()
 const { t } = useI18n({ useScope: 'global' })
 
 const policy = defineModel<ProtectionDraft>({ required: true })
+const rulesItem = useTemplateRef<InstanceType<typeof ZFormItem>>('rulesItem')
+const showErrors = computed(() => Boolean(rulesItem.value?.validateState))
+watch(() => policy.value.rules, () => rulesItem.value?.clearValidate())
 const expandedId = shallowRef<string | null>(null)
 const probeModelId = useId()
 const helpId = useId()
@@ -91,7 +94,7 @@ function removeRule(id: string) {
         @update:model-value="update({ enabled: $event })"
       />
 
-      <ZFormItem prop="accountErrorProtection.rules" class="col-span-full">
+      <ZFormItem ref="rulesItem" prop="accountErrorProtection.rules" class="col-span-full">
         <section class="grid min-w-0 gap-3" :aria-label="t('settings.errorProtection.rules')">
           <div class="flex flex-wrap items-center justify-between gap-2">
             <div class="flex min-w-0 items-center gap-1">
@@ -138,6 +141,7 @@ function removeRule(id: string) {
               <ProtectionRuleRow
                 :rule="rule"
                 :expanded="expandedId === rule.id"
+                :show-errors="showErrors"
                 :disabled="disabled"
                 @toggle="expandedId = expandedId === rule.id ? null : rule.id"
                 @remove="removeRule(rule.id)"
diff --git a/frontend/src/views/settings/components/error-protection/ProtectionConditionEditor.vue b/frontend/src/views/settings/components/error-protection/ProtectionConditionEditor.vue
index 650495de9..f7f6059a6 100644
--- a/frontend/src/views/settings/components/error-protection/ProtectionConditionEditor.vue
+++ b/frontend/src/views/settings/components/error-protection/ProtectionConditionEditor.vue
@@ -2,17 +2,20 @@
 import type { ProtectionCondition, ProtectionField, ProtectionOperator } from '@/api/modules/settings/protection'
 import { ZButton, ZCheckbox, ZIconButton, ZInput, ZPopover, ZSelect } from '@codex-proxy/ui'
 import { ChevronDown, Plus, Trash2, X } from '@lucide/vue'
-import { computed, useId } from 'vue'
+import { computed, shallowRef, useId } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { protectionConditionError, protectionFieldLabels, protectionLimits, protectionOperatorLabels } from './form'
 
-const props = defineProps<{ disabled: boolean }>()
+const props = defineProps<{ disabled: boolean, showErrors: boolean }>()
 const emit = defineEmits<{ remove: [] }>()
 const condition = defineModel<ProtectionCondition>({ required: true })
 const { t } = useI18n({ useScope: 'global' })
 const optionsId = useId()
 const errorId = useId()
-const error = computed(() => protectionConditionError(condition.value))
+const inputEdited = shallowRef(false)
+const error = computed(() => props.showErrors || inputEdited.value
+  ? protectionConditionError(condition.value)
+  : '')
 const hasMissing = computed(() => condition.value.values.includes(null))
 const fields = computed(() => ([
   'provider',
@@ -41,7 +44,7 @@ function update(patch: Partial<ProtectionCondition>) {
 }
 
 function changeField(field: ProtectionField) {
-  update({
+  configure({
     field,
     operator: field === 'message'
       ? condition.value.operator
@@ -50,10 +53,20 @@ function changeField(field: ProtectionField) {
 }
 
 function changeOperator(operator: ProtectionOperator) {
-  update({ operator })
+  configure({ operator })
+}
+
+function configure(patch: Partial<ProtectionCondition>) {
+  if (!props.disabled) {
+    inputEdited.value = false
+    update(patch)
+  }
 }
 
 function updateValue(index: number, value: string) {
+  if (props.disabled)
+    return
+  inputEdited.value = true
   update({
     values: condition.value.values.map((previous, i) => i === index
       ? value
@@ -63,7 +76,7 @@ function updateValue(index: number, value: string) {
 
 function removeValue(index: number) {
   const values = condition.value.values.filter((_, i) => i !== index)
-  update({
+  configure({
     values: values.length
       ? values
       : [''],
@@ -73,7 +86,7 @@ function removeValue(index: number) {
 function toggleMissing(missing: boolean) {
   if (missing) {
     if (!hasMissing.value && condition.value.values.length < protectionLimits.values) {
-      update({
+      configure({
         values: [...condition.value.values, null],
       })
     }
@@ -81,7 +94,7 @@ function toggleMissing(missing: boolean) {
   else {
     // 空文本与缺失分别匹配，只移除缺失候选，保留用户输入的空文本
     const values = condition.value.values.filter(value => value !== null)
-    update({
+    configure({
       values: values.length
         ? values
         : [''],
@@ -135,7 +148,7 @@ function toggleMissing(missing: boolean) {
         </div>
       </div>
       <div class="flex flex-wrap items-center justify-between gap-x-3 gap-y-1" :class="condition.values.length > 1 ? 'pl-6' : undefined">
-        <ZButton size="small" variant="text" :disabled="disabled || condition.values.length >= protectionLimits.values" @click="update({ values: [...condition.values, ''] })">
+        <ZButton size="small" variant="text" :disabled="disabled || condition.values.length >= protectionLimits.values" @click="configure({ values: [...condition.values, ''] })">
           <template #icon>
             <Plus class="size-3.5" />
           </template>
diff --git a/frontend/src/views/settings/components/error-protection/ProtectionRuleEditor.vue b/frontend/src/views/settings/components/error-protection/ProtectionRuleEditor.vue
index b38a8209d..328d868c0 100644
--- a/frontend/src/views/settings/components/error-protection/ProtectionRuleEditor.vue
+++ b/frontend/src/views/settings/components/error-protection/ProtectionRuleEditor.vue
@@ -2,15 +2,26 @@
 import type { ProtectionCondition, ProtectionRule } from '@/api/modules/settings/protection'
 import { ZButton } from '@codex-proxy/ui'
 import { Plus } from '@lucide/vue'
-import { computed } from 'vue'
+import { computed, toRaw } from 'vue'
 import { useI18n } from 'vue-i18n'
-import { createProtectionCondition, protectionLimits, protectionRuleStructureError } from './form'
+import { createProtectionCondition, protectionLimits, protectionRuleConditionsError } from './form'
 import ProtectionConditionEditor from './ProtectionConditionEditor.vue'
 
-const props = defineProps<{ disabled: boolean }>()
+const props = defineProps<{ disabled: boolean, showErrors: boolean }>()
 const rule = defineModel<ProtectionRule>({ required: true })
 const { t } = useI18n({ useScope: 'global' })
-const error = computed(() => protectionRuleStructureError(rule.value))
+const error = computed(() => props.showErrors
+  ? protectionRuleConditionsError(rule.value.conditions)
+  : '')
+const conditionKeys = new WeakMap<ProtectionCondition, number>()
+let nextConditionKey = 0
+
+function conditionKey(condition: ProtectionCondition) {
+  const value = toRaw(condition)
+  if (!conditionKeys.has(value))
+    conditionKeys.set(value, nextConditionKey++)
+  return conditionKeys.get(value)!
+}
 
 function update(patch: Partial<ProtectionRule>) {
   if (!props.disabled) {
@@ -22,6 +33,8 @@ function update(patch: Partial<ProtectionRule>) {
 }
 
 function updateCondition(index: number, condition: ProtectionCondition) {
+  // 对象更新沿用编辑身份，删除前面的条件时也不串用后续条件的输入状态
+  conditionKeys.set(toRaw(condition), conditionKey(rule.value.conditions[index]!))
   update({
     conditions: rule.value.conditions.map((previous, i) => i === index
       ? condition
@@ -34,11 +47,12 @@ function updateCondition(index: number, condition: ProtectionCondition) {
   <div class="grid gap-4 px-3 pb-4 sm:px-4">
     <div class="grid gap-2">
       <span class="text-z-sm font-emphasis text-z-text-secondary">{{ t('settings.errorProtection.allConditions') }}</span>
-      <template v-for="(condition, index) in rule.conditions" :key="index">
+      <template v-for="(condition, index) in rule.conditions" :key="conditionKey(condition)">
         <span v-if="index > 0" class="pl-3 text-z-xs font-emphasis text-z-text-secondary">{{ t('settings.errorProtection.and') }}</span>
         <ProtectionConditionEditor
           :model-value="condition"
           :disabled="disabled"
+          :show-errors="showErrors"
           @update:model-value="updateCondition(index, $event)"
           @remove="update({ conditions: rule.conditions.filter((_, i) => i !== index) })"
         />
diff --git a/frontend/src/views/settings/components/error-protection/ProtectionRuleRow.vue b/frontend/src/views/settings/components/error-protection/ProtectionRuleRow.vue
index f7660a117..8d4932baf 100644
--- a/frontend/src/views/settings/components/error-protection/ProtectionRuleRow.vue
+++ b/frontend/src/views/settings/components/error-protection/ProtectionRuleRow.vue
@@ -2,26 +2,33 @@
 import type { ProtectionRule } from '@/api/modules/settings/protection'
 import { ZIconButton, ZInput } from '@codex-proxy/ui'
 import { ChevronDown, Trash2 } from '@lucide/vue'
-import { computed, useId } from 'vue'
+import { computed, shallowRef, useId } from 'vue'
 import { useI18n } from 'vue-i18n'
-import { protectionRuleError, protectionRuleSummary } from './form'
+import { protectionRuleError, protectionRuleNameError, protectionRuleSummary } from './form'
 import ProtectionRuleEditor from './ProtectionRuleEditor.vue'
 
-const props = defineProps<{ rule: ProtectionRule, expanded: boolean, disabled: boolean }>()
+const props = defineProps<{ rule: ProtectionRule, expanded: boolean, disabled: boolean, showErrors: boolean }>()
 const emit = defineEmits<{ toggle: [], remove: [], update: [rule: ProtectionRule] }>()
 const { t } = useI18n({ useScope: 'global' })
 const editorId = useId()
+const errorId = useId()
+const nameEdited = shallowRef(false)
+const nameError = computed(() => props.showErrors || nameEdited.value
+  ? protectionRuleNameError(props.rule.name)
+  : '')
 // 折叠行独立缓存摘要，输入时只更新当前规则的条件
 const summary = computed(() => props.expanded
   ? ''
   : protectionRuleSummary(props.rule))
-const error = computed(() => props.expanded
-  ? ''
-  : protectionRuleError(props.rule))
+const error = computed(() => !props.expanded && props.showErrors
+  ? protectionRuleError(props.rule)
+  : nameError.value)
 
 function updateName(name: string) {
-  if (!props.disabled)
+  if (!props.disabled) {
+    nameEdited.value = true
     emit('update', { ...props.rule, name })
+  }
 }
 </script>
 
@@ -42,18 +49,20 @@ function updateName(name: string) {
           :model-value="rule.name"
           :disabled="disabled"
           :aria-label="t('settings.errorProtection.ruleName')"
+          :aria-invalid="Boolean(nameError)"
+          :aria-describedby="error ? errorId : undefined"
           :placeholder="t('settings.errorProtection.ruleNamePlaceholder')"
           class="max-w-lg"
           @update:model-value="updateName"
         />
         <span v-else class="truncate text-z-sm font-emphasis text-z-text">{{ rule.name || t('settings.errorProtection.unnamedRule') }}</span>
         <span v-if="!expanded" class="truncate text-z-xs text-z-text-tertiary" :title="summary">{{ summary }}</span>
-        <span v-if="error" role="alert" class="text-z-sm text-z-error-text">{{ error }}</span>
+        <span v-if="error" :id="errorId" role="alert" class="text-z-sm text-z-error-text">{{ error }}</span>
       </div>
       <ZIconButton :disabled="disabled" :aria-label="t('settings.errorProtection.removeRule', { name: rule.name || t('settings.errorProtection.unnamedRule') })" @click="emit('remove')">
         <Trash2 class="size-4" />
       </ZIconButton>
     </div>
-    <ProtectionRuleEditor v-if="expanded" :id="editorId" :model-value="rule" :disabled="disabled" @update:model-value="emit('update', $event)" />
+    <ProtectionRuleEditor v-if="expanded" :id="editorId" :model-value="rule" :disabled="disabled" :show-errors="showErrors" @update:model-value="emit('update', $event)" />
   </div>
 </template>
diff --git a/frontend/src/views/settings/components/error-protection/form.ts b/frontend/src/views/settings/components/error-protection/form.ts
index 6c09c5d20..57fd8d09f 100644
--- a/frontend/src/views/settings/components/error-protection/form.ts
+++ b/frontend/src/views/settings/components/error-protection/form.ts
@@ -68,18 +68,22 @@ export function protectionConditionError(condition: ProtectionCondition): string
   return ''
 }
 
-export function protectionRuleStructureError(rule: ProtectionRule): string {
-  if (!trimProtectionText(rule.name) || rule.name !== trimProtectionText(rule.name) || /\p{Cc}/u.test(rule.name) || exceedsCharacters(rule.name, protectionLimits.name))
+export function protectionRuleNameError(name: string): string {
+  if (!trimProtectionText(name) || name !== trimProtectionText(name) || /\p{Cc}/u.test(name) || exceedsCharacters(name, protectionLimits.name))
     return t('settings.errorProtection.validation.name', { max: protectionLimits.name })
-  if (!rule.conditions.length || rule.conditions.length > protectionLimits.conditions)
+  return ''
+}
+
+export function protectionRuleConditionsError(conditions: ProtectionCondition[]): string {
+  if (!conditions.length || conditions.length > protectionLimits.conditions)
     return t('settings.errorProtection.validation.conditions', { max: protectionLimits.conditions })
-  if (rule.conditions.every(condition => condition.field === 'provider'))
+  if (conditions.every(condition => condition.field === 'provider'))
     return t('settings.errorProtection.validation.errorCondition')
   return ''
 }
 
 export function protectionRuleError(rule: ProtectionRule): string {
-  const error = protectionRuleStructureError(rule)
+  const error = protectionRuleNameError(rule.name) || protectionRuleConditionsError(rule.conditions)
   if (error)
     return error
   for (const condition of rule.conditions) {
diff --git a/frontend/src/views/settings/composables/useSettingsFormRules.ts b/frontend/src/views/settings/composables/useSettingsFormRules.ts
index 32665ec05..fcd83c844 100644
--- a/frontend/src/views/settings/composables/useSettingsFormRules.ts
+++ b/frontend/src/views/settings/composables/useSettingsFormRules.ts
@@ -87,7 +87,8 @@ export function useSettingsFormRules(form: () => SettingsForm) {
       },
     ],
     'accountErrorProtection.rules': {
-      trigger: 'change',
+      // 子字段保留输入校验，整组完整性只在提交时检查
+      trigger: [],
       validator: () => {
         const error = protectionPolicyError(form().accountErrorProtection)
         return error