diff --git a/apps/website/src/components/docs/PageActions.tsx b/apps/website/src/components/docs/PageActions.tsx
index c3f9c9b6..d41fc448 100644
--- a/apps/website/src/components/docs/PageActions.tsx
+++ b/apps/website/src/components/docs/PageActions.tsx
@@ -3,11 +3,7 @@ import { useEffect, useRef, useState } from 'react';
 import { tokens } from '@threadplane/design-tokens';
 import { analyticsEvents } from '../../lib/analytics/events';
 import { track } from '../../lib/analytics/client';
-
-// NOTE: SITE_ORIGIN is duplicated from lib/site-metadata rather than imported,
-// because site-metadata transitively pulls in lib/blog (Node `fs`), which a
-// 'use client' component cannot bundle. Keep in sync with site-metadata.ts.
-const SITE_ORIGIN = 'https://threadplane.ai';
+import { SITE_ORIGIN } from '../../lib/site-origin';
 
 const GITHUB_EDIT_BASE =
   'https://github.com/cacheplane/angular-agent-framework/edit/main/apps/website/content/docs';
diff --git a/apps/website/src/lib/site-metadata.ts b/apps/website/src/lib/site-metadata.ts
index 120695f6..60d19754 100644
--- a/apps/website/src/lib/site-metadata.ts
+++ b/apps/website/src/lib/site-metadata.ts
@@ -2,8 +2,9 @@ import type { Metadata } from 'next';
 import { getAllSolutionSlugs } from './solutions-data';
 import { docsConfig } from './docs-config';
 import { getAllPosts } from './blog';
+import { SITE_ORIGIN } from './site-origin';
 
-export const SITE_ORIGIN = 'https://threadplane.ai';
+export { SITE_ORIGIN };
 export const SITE_NAME = 'Threadplane';
 export const DEFAULT_SOCIAL_IMAGE = '/opengraph-image';
 export {
diff --git a/apps/website/src/lib/site-origin.ts b/apps/website/src/lib/site-origin.ts
new file mode 100644
index 00000000..36da0375
--- /dev/null
+++ b/apps/website/src/lib/site-origin.ts
@@ -0,0 +1,4 @@
+// Leaf module: the canonical site origin with NO Node-only (`fs`) imports, so it
+// is safe to import from `'use client'` components. `site-metadata.ts` re-exports
+// it; client code should import from here directly.
+export const SITE_ORIGIN = 'https://threadplane.ai';