diff --git a/mateclaw-ui/src/views/Wiki/components/JobStageBar.vue b/mateclaw-ui/src/views/Wiki/components/JobStageBar.vue
index 62695660..a3c3033f 100644
--- a/mateclaw-ui/src/views/Wiki/components/JobStageBar.vue
+++ b/mateclaw-ui/src/views/Wiki/components/JobStageBar.vue
@@ -45,7 +45,7 @@
     <!-- Error state with actions -->
     <div v-if="status === 'failed'" class="stage-error">
       <span class="error-badge">❌ {{ t('wiki.jobStage.failed') }} — {{ errorCode }}</span>
-      <div class="error-actions">
+      <div v-if="canManageWiki" class="error-actions">
         <button class="btn-mini" @click="$emit('reprocess')">{{ t('wiki.reprocess') }}</button>
         <button class="btn-mini btn-mini-alt" @click="$emit('repair')">{{ t('wiki.page.repair') }}</button>
       </div>
@@ -56,8 +56,13 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 
 const { t } = useI18n()
+const workspace = useWorkspaceStore()
+
+// Reprocess / repair are write actions — viewers see job status without them.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 
 const props = defineProps<{
   stage: string
diff --git a/mateclaw-ui/src/views/Wiki/components/PageHeader.vue b/mateclaw-ui/src/views/Wiki/components/PageHeader.vue
index ff5e76c1..5d89da2b 100644
--- a/mateclaw-ui/src/views/Wiki/components/PageHeader.vue
+++ b/mateclaw-ui/src/views/Wiki/components/PageHeader.vue
@@ -24,7 +24,7 @@
         <el-icon :size="12"><Link /></el-icon>
         {{ t('wiki.page.enriched') }}
       </span>
-      <button v-else class="btn-mini-enrich" @click="$emit('enrich')">
+      <button v-else-if="canManageWiki" class="btn-mini-enrich" @click="$emit('enrich')">
         <el-icon :size="12"><Link /></el-icon>
         {{ t('wiki.page.enrich') }}
       </button>
@@ -41,8 +41,13 @@
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { Link } from '@element-plus/icons-vue'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 
 const { t } = useI18n()
+const workspace = useWorkspaceStore()
+
+// Enriching a page (adding cross-links) is a write action — viewers only read.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 
 const props = defineProps<{
   page: {
diff --git a/mateclaw-ui/src/views/Wiki/components/RawMaterialPanel.vue b/mateclaw-ui/src/views/Wiki/components/RawMaterialPanel.vue
index 0d893833..09c27e8f 100644
--- a/mateclaw-ui/src/views/Wiki/components/RawMaterialPanel.vue
+++ b/mateclaw-ui/src/views/Wiki/components/RawMaterialPanel.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="raw-panel">
     <!-- Upload + Add text row -->
-    <div class="upload-row">
+    <div v-if="canManageWiki" class="upload-row">
       <div
         class="upload-zone"
         :class="{ 'is-dragging': isDragging, 'is-uploading': uploadingFiles.length > 0 }"
@@ -45,7 +45,7 @@
     </div>
 
     <!-- Directory scan -->
-    <div class="dir-scan-row">
+    <div v-if="canManageWiki" class="dir-scan-row">
       <div class="dir-input-wrap">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
           <path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/>
@@ -163,7 +163,7 @@
               {{ raw.errorMessage }}
             </span>
           </div>
-          <div class="raw-item-actions">
+          <div v-if="canManageWiki" class="raw-item-actions">
             <button
               v-if="raw.processingStatus === 'processing' && !cancellingIds.has(raw.id)"
               class="btn-icon btn-icon-danger" :title="t('wiki.cancel')"
@@ -290,12 +290,18 @@ import { mcToast } from '@/composables/useMcToast'
 import { useFileDrop } from '@/composables/useFileDrop'
 import { Download } from '@element-plus/icons-vue'
 import { useWikiStore } from '@/stores/useWikiStore'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 import { wikiApi } from '@/api/index'
 import JobStageBar from './JobStageBar.vue'
 import type { WikiProcessingJob } from '@/composables/useWikiJobPoller'
 
 const { t } = useI18n()
 const store = useWikiStore()
+const workspace = useWorkspaceStore()
+
+// Uploading, scanning and (re)processing raw material all require manage:wiki.
+// Viewers can still see the material list but get no write controls.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 const fileInput = ref<HTMLInputElement | null>(null)
 
 // While raw materials are active, subscribe to the backend SSE progress stream.
diff --git a/mateclaw-ui/src/views/Wiki/components/WikiKBCard.vue b/mateclaw-ui/src/views/Wiki/components/WikiKBCard.vue
index 02ad1619..e9a9c8c4 100644
--- a/mateclaw-ui/src/views/Wiki/components/WikiKBCard.vue
+++ b/mateclaw-ui/src/views/Wiki/components/WikiKBCard.vue
@@ -9,6 +9,7 @@
     @keydown.space.prevent="$emit('open', kb.id)"
   >
     <button
+      v-if="canManageWiki"
       type="button"
       class="kb-card-delete"
       :title="t('wiki.library.deleteKB')"
@@ -61,6 +62,7 @@
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import type { WikiKB } from '@/stores/useWikiStore'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 import { kbAccent, kbAccentFg, kbInitial, relativeTime } from '../utils/kbVisual'
 
 const props = defineProps<{
@@ -74,6 +76,10 @@ defineEmits<{
 }>()
 
 const { t, locale } = useI18n()
+const workspace = useWorkspaceStore()
+
+// Deleting a knowledge base requires manage:wiki; hide it from read-only viewers.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 
 const failedJobCount = computed(() => props.failedJobCount ?? 0)
 const initial = computed(() => kbInitial(props.kb))
diff --git a/mateclaw-ui/src/views/Wiki/components/WikiLibrary.vue b/mateclaw-ui/src/views/Wiki/components/WikiLibrary.vue
index bed4d863..35f3d6d7 100644
--- a/mateclaw-ui/src/views/Wiki/components/WikiLibrary.vue
+++ b/mateclaw-ui/src/views/Wiki/components/WikiLibrary.vue
@@ -6,7 +6,7 @@
         <h1 class="mc-page-title">{{ t('nav.wiki') }}</h1>
         <p class="mc-page-desc">{{ t('wiki.desc') }}</p>
       </div>
-      <button class="btn-primary page-cta" @click="$emit('create')">
+      <button v-if="canManageWiki" class="btn-primary page-cta" @click="$emit('create')">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
           <line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/>
         </svg>
@@ -48,7 +48,7 @@
       </div>
       <h3 class="library-empty-title">{{ t('wiki.library.empty') }}</h3>
       <p class="library-empty-hint">{{ t('wiki.library.emptyHint') }}</p>
-      <button class="btn-primary" @click="$emit('create')">
+      <button v-if="canManageWiki" class="btn-primary" @click="$emit('create')">
         <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
         {{ t('wiki.createKB') }}
       </button>
@@ -87,6 +87,7 @@
 import { ref, computed, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import type { WikiKB } from '@/stores/useWikiStore'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 import McPagination from '@/components/common/McPagination.vue'
 import WikiKBCard from './WikiKBCard.vue'
 
@@ -108,6 +109,10 @@ defineEmits<{
 }>()
 
 const { t } = useI18n()
+const workspace = useWorkspaceStore()
+
+// view:wiki users without manage:wiki may browse but not create knowledge bases.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 
 const searchInput = ref('')
 type SortMode = 'recent' | 'name' | 'pages'
diff --git a/mateclaw-ui/src/views/Wiki/components/WikiPageViewer.vue b/mateclaw-ui/src/views/Wiki/components/WikiPageViewer.vue
index 5ce06cfb..08958647 100644
--- a/mateclaw-ui/src/views/Wiki/components/WikiPageViewer.vue
+++ b/mateclaw-ui/src/views/Wiki/components/WikiPageViewer.vue
@@ -13,8 +13,8 @@
       <p class="summary-text">{{ store.currentPage.summary }}</p>
     </div>
 
-    <!-- Actions bar -->
-    <div class="page-actions-bar">
+    <!-- Actions bar — write actions, hidden for read-only viewers -->
+    <div v-if="canManageWiki" class="page-actions-bar">
       <button class="btn-secondary btn-sm" @click="editing = !editing">
         {{ editing ? t('common.cancel') : t('common.edit') }}
       </button>
@@ -99,6 +99,7 @@
 import { ref, computed, watch, onMounted, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useWikiStore, isProtectedPage, type WikiPage } from '@/stores/useWikiStore'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 import { wikiApi } from '@/api/index'
 import { useMarkdownRenderer } from '@/composables/useMarkdownRenderer'
 import { Link, SetUp } from '@element-plus/icons-vue'
@@ -109,8 +110,13 @@ import ImageLightbox from './ImageLightbox.vue'
 
 const { t } = useI18n()
 const store = useWikiStore()
+const workspace = useWorkspaceStore()
 const { renderMarkdown } = useMarkdownRenderer()
 
+// Editing, enriching, repairing and deleting pages all require manage:wiki.
+// Read-only viewers get the rendered page without the action bar.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
+
 const editing = ref(false)
 const editContent = ref('')
 const backlinks = ref<WikiPage[]>([])
diff --git a/mateclaw-ui/src/views/Wiki/components/WikiWorkspace.vue b/mateclaw-ui/src/views/Wiki/components/WikiWorkspace.vue
index 6faea039..d15a385c 100644
--- a/mateclaw-ui/src/views/Wiki/components/WikiWorkspace.vue
+++ b/mateclaw-ui/src/views/Wiki/components/WikiWorkspace.vue
@@ -56,6 +56,7 @@
 import { ref, computed, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useWikiStore, type WikiKB } from '@/stores/useWikiStore'
+import { useWorkspaceStore } from '@/stores/useWorkspaceStore'
 import RawMaterialPanel from './RawMaterialPanel.vue'
 import WikiPageViewer from './WikiPageViewer.vue'
 import WikiConfig from './WikiConfig.vue'
@@ -69,17 +70,27 @@ defineProps<{ kb: WikiKB }>()
 
 const { t } = useI18n()
 const store = useWikiStore()
+const workspace = useWorkspaceStore()
+
+// Read-only viewers (view:wiki without manage:wiki) only get the browsing tabs;
+// the processing-config and transformations tabs are management surfaces.
+const canManageWiki = computed(() => workspace.can('manage:wiki'))
 
 const activeTab = ref('raw')
 
-const tabs = computed(() => [
-  { key: 'raw', label: t('wiki.rawMaterials') },
-  { key: 'pages', label: t('wiki.pages') },
-  { key: 'graph', label: t('wiki.graph.tab') },
-  { key: 'config', label: t('wiki.config') },
-  { key: 'transformations', label: t('wiki.transformations.tab') },
-  { key: 'hotCache', label: t('wiki.hotCache.tab') },
-])
+const tabs = computed(() => {
+  const list = [
+    { key: 'raw', label: t('wiki.rawMaterials') },
+    { key: 'pages', label: t('wiki.pages') },
+    { key: 'graph', label: t('wiki.graph.tab') },
+  ]
+  if (canManageWiki.value) {
+    list.push({ key: 'config', label: t('wiki.config') })
+    list.push({ key: 'transformations', label: t('wiki.transformations.tab') })
+  }
+  list.push({ key: 'hotCache', label: t('wiki.hotCache.tab') })
+  return list
+})
 
 // When the user picks a different KB from the library, snap back to the
 // raw-materials tab so they don't land on stale state from the previous KB.