diff --git a/src/admin/resource-types.ts b/src/admin/resource-types.ts
index 236e06e..6173015 100644
--- a/src/admin/resource-types.ts
+++ b/src/admin/resource-types.ts
@@ -221,6 +221,9 @@ export interface FormConfig {
 // ── Op context — passed to CRUD ops and actions ─────────────────────────────
 export interface OpContext {
   user: { id: number; role: string };
+  /** Request origin (e.g. "https://bifrost.fenja.ai") — used to build absolute
+   *  URLs in ActionResults like invite links. Always set by the route handler. */
+  origin: string;
   /**
    * Raw POST FormData — opt-in escape hatch for resources whose form has
    * embedded sub-forms (e.g. the pulse fieldset inside dispatches). Most
diff --git a/src/admin/resources/invitations.ts b/src/admin/resources/invitations.ts
index c0d0a2a..14b495f 100644
--- a/src/admin/resources/invitations.ts
+++ b/src/admin/resources/invitations.ts
@@ -166,11 +166,11 @@ export const invitationsResource: Resource<InviteRow> = {
 
       // Surface the one-shot magic link via the result mechanism — the route
       // handler propagates it as ?invite_url= and the panel renders a copy
-      // block on the next page load.
-      const origin = process.env.PUBLIC_ORIGIN ?? '';
+      // block on the next page load. ctx.origin comes from Astro.url.origin
+      // so the link is always absolute and clickable.
       ctx.result = {
         kind: 'invite-link',
-        url: `${origin}/invite?t=${token}`,
+        url: `${ctx.origin}/invite?t=${token}`,
       };
       return id;
     },
diff --git a/src/pages/admin/[resource].astro b/src/pages/admin/[resource].astro
index 84753e9..4b37e9e 100644
--- a/src/pages/admin/[resource].astro
+++ b/src/pages/admin/[resource].astro
@@ -38,7 +38,10 @@ if (!resource) {
 }
 
 const resourceBase = `/admin/${resource.key}`;
-const opCtx: OpContext = { user: { id: user.id, role: user.role } };
+const opCtx: OpContext = {
+  user: { id: user.id, role: user.role },
+  origin: Astro.url.origin,
+};
 
 // ── Form-data → typed record (driven by the field configs) ────────────────
 function parseFormData(