diff --git a/_includes/layouts/page.njk b/_includes/layouts/page.njk
index 41de18b..c96b5c7 100644
--- a/_includes/layouts/page.njk
+++ b/_includes/layouts/page.njk
@@ -26,6 +26,42 @@ withSidebar: true
     {{ content | safe }}
   </div>
 
+  {# AI usage disclosure #}
+  {% set aiTextLevel = aiTextLevel or ai_text_level %}
+  {% set aiCodeLevel = aiCodeLevel or ai_code_level %}
+  {% set aiTools = aiTools or ai_tools %}
+  {% set aiDescription = aiDescription or ai_description %}
+  {% if aiTextLevel or aiCodeLevel or aiTools %}
+  <aside class="mt-6 p-4 rounded-lg bg-surface-50 dark:bg-surface-800/50 border border-surface-200 dark:border-surface-700">
+    <div class="flex items-center gap-2 mb-2">
+      <svg class="w-4 h-4 text-surface-500 dark:text-surface-400 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
+        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9.75 3.104v5.714a2.25 2.25 0 01-.659 1.591L5 14.5M9.75 3.104c-.251.023-.501.05-.75.082m.75-.082a24.301 24.301 0 014.5 0m0 0v5.714a2.25 2.25 0 00.659 1.591L19 14.5M14.25 3.104c.251.023.501.05.75.082M19 14.5l-2.47 2.47a2.25 2.25 0 01-1.59.659H9.06a2.25 2.25 0 01-1.591-.659L5 14.5m14 0V17a2 2 0 01-2 2H7a2 2 0 01-2-2v-2.5"/>
+      </svg>
+      <strong class="text-sm font-semibold text-surface-700 dark:text-surface-300">AI Usage</strong>
+    </div>
+    <div class="flex flex-wrap gap-3 text-xs text-surface-600 dark:text-surface-400">
+      {% if aiTextLevel %}
+      <span class="inline-flex items-center gap-1 px-2 py-0.5 rounded bg-surface-100 dark:bg-surface-700">
+        Text: {% if aiTextLevel === "0" %}None{% elif aiTextLevel === "1" %}Editorial{% elif aiTextLevel === "2" %}Co-drafted{% elif aiTextLevel === "3" %}AI-generated{% endif %}
+      </span>
+      {% endif %}
+      {% if aiCodeLevel %}
+      <span class="inline-flex items-center gap-1 px-2 py-0.5 rounded bg-surface-100 dark:bg-surface-700">
+        Code: {% if aiCodeLevel === "0" %}Human{% elif aiCodeLevel === "1" %}AI-assisted{% elif aiCodeLevel === "2" %}AI-generated{% endif %}
+      </span>
+      {% endif %}
+      {% if aiTools %}
+      <span class="inline-flex items-center gap-1 px-2 py-0.5 rounded bg-surface-100 dark:bg-surface-700">
+        Tools: {{ aiTools }}
+      </span>
+      {% endif %}
+    </div>
+    {% if aiDescription %}
+    <p class="mt-2 text-xs text-surface-500 dark:text-surface-400">{{ aiDescription }}</p>
+    {% endif %}
+  </aside>
+  {% endif %}
+
   {# Categories/tags if present #}
   {% if category %}
   <footer class="mt-8 pt-6 border-t border-surface-200 dark:border-surface-700">