diff --git a/cms/core/admin/src/App.jsx b/cms/core/admin/src/App.jsx
index 1a260b5..53faa9e 100644
--- a/cms/core/admin/src/App.jsx
+++ b/cms/core/admin/src/App.jsx
@@ -104,6 +104,7 @@ function Dashboard({ email }) {
           {me?.canModerate && <button className={view === 'moderation' ? 'active' : ''} onClick={() => setView('moderation')}>Moderation</button>}
           {me?.isAdmin && <button className={view === 'forums' ? 'active' : ''} onClick={() => setView('forums')}>Foren</button>}
           {me?.isAdmin && <button className={view === 'users' ? 'active' : ''} onClick={() => setView('users')}>Autor:innen</button>}
+          {me?.isAdmin && <button className={view === 'system' ? 'active' : ''} onClick={() => setView('system')}>System</button>}
         </nav>
         <span className="spacer" />
         <span className="who">{email}</span>
@@ -121,6 +122,8 @@ function Dashboard({ email }) {
           <Forums onMsg={setMsg} />
         ) : view === 'moderation' ? (
           <Moderation onMsg={setMsg} />
+        ) : view === 'system' ? (
+          <System onMsg={setMsg} />
         ) : (
           <>
             <aside>
@@ -445,6 +448,37 @@ function Overview({ onMsg, go }) {
   );
 }
 
+// ── System (nur Admin): core-Version, Plugins, Content-Modell ────────────────
+function System({ onMsg }) {
+  const [s, setS] = useState(null);
+  useEffect(() => { api.system().then(setS).catch((e) => onMsg({ type: 'err', text: e.message })); }, []);
+  if (!s) return <div className="empty">…</div>;
+  return (
+    <div className="profile">
+      <div className="profile-card wide">
+        <h2>System</h2>
+        <div className="sysgrid">
+          <div><span className="muted">Core</span><b>{s.core.name} <span className="ver">v{s.core.version}</span></b></div>
+          <div><span className="muted">Site</span><b>{s.site || '—'}</b></div>
+          <div><span className="muted">Auth</span><b>{s.auth}</b></div>
+          <div><span className="muted">Hugo</span><b>{s.hugo}</b></div>
+        </div>
+        <h3>Plugins <span className="count-pill">{s.plugins.length}</span></h3>
+        {s.plugins.length
+          ? <ul className="syslist">{s.plugins.map((p) => (
+              <li key={p.name}><b>{p.name}</b><span className="muted">{p.routes} Routen · {p.migrations} Migration(en)</span></li>
+            ))}</ul>
+          : <p className="muted">Keine Plugins aktiv.</p>}
+        <h3>Content-Modell <span className="count-pill">{s.collections.length}</span></h3>
+        <ul className="syslist">{s.collections.map((c) => (
+          <li key={c.kind}><b>{c.label}</b><span className="muted">{c.kind} · {c.fields} Felder{c.statKey ? ` · ${c.statKey}` : ''}</span></li>
+        ))}</ul>
+        <p className="muted who-mail">openbureau-core fährt diese Site. Plugins &amp; Content-Modell kommen aus der Site-Config.</p>
+      </div>
+    </div>
+  );
+}
+
 // ── Autor:innen-Verwaltung (nur Admin) ──────────────────────────────────────
 function Users({ onMsg, currentEmail }) {
   const [list, setList] = useState(null);
diff --git a/cms/core/admin/src/api.js b/cms/core/admin/src/api.js
index 895c61c..af8e372 100644
--- a/cms/core/admin/src/api.js
+++ b/cms/core/admin/src/api.js
@@ -45,6 +45,8 @@ export const api = {
   saveProfile: (p) => call('/profile', { method: 'PUT', body: JSON.stringify(p) }),
   getMe: () => call('/me'),
   stats: () => call('/stats'),
+  system: () => call('/system'),
+  schema: () => call('/schema'),
   listUsers: () => call('/users'),
   createUser: (email, password, role) => call('/users', { method: 'POST', body: JSON.stringify({ email, password, role }) }),
   setPassword: (id, password) => call(`/users/${id}`, { method: 'PUT', body: JSON.stringify({ password }) }),
diff --git a/cms/core/admin/src/styles.css b/cms/core/admin/src/styles.css
index ea4c908..2763cf9 100644
--- a/cms/core/admin/src/styles.css
+++ b/cms/core/admin/src/styles.css
@@ -219,3 +219,13 @@ label.big input { font-family: var(--serif); font-weight: 600; }
 .toast { position: fixed; bottom: 20px; right: 20px; padding: 11px 18px; border-radius: 11px; color: #fff; cursor: pointer; box-shadow: 0 10px 30px -12px rgba(0,0,0,.4); font-size: 13.5px; max-width: 380px; z-index: 50; }
 .toast.ok { background: var(--ok); }
 .toast.err { background: var(--accent); }
+
+/* System-Panel */
+.sysgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; margin: .5rem 0 1rem; }
+.sysgrid > div { display: flex; flex-direction: column; gap: .15rem; }
+.sysgrid .muted { font-size: .8rem; }
+.sysgrid b { font-size: 1.05rem; }
+.sysgrid .ver { opacity: .6; font-weight: 400; }
+.syslist { list-style: none; padding: 0; margin: .25rem 0 1rem; }
+.syslist li { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: .4rem 0; border-bottom: 1px solid var(--line); }
+.syslist li .muted { font-size: .85rem; }
diff --git a/cms/core/api/package.json b/cms/core/api/package.json
index 2b9c4f4..66ab42c 100644
--- a/cms/core/api/package.json
+++ b/cms/core/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openbureau-cms-api",
-  "version": "0.1.0",
+  "version": "0.6.0",
   "private": true,
   "type": "module",
   "description": "Headless CMS backend für OPENBUREAU — schreibt Supabase-Posts in Hugo-content/, baut und serviert die Site.",
diff --git a/cms/core/api/src/index.js b/cms/core/api/src/index.js
index 053e911..74bfa21 100644
--- a/cms/core/api/src/index.js
+++ b/cms/core/api/src/index.js
@@ -12,8 +12,10 @@ import upload from './routes/upload.js';
 import profile from './routes/profile.js';
 import users from './routes/users.js';
 import stats from './routes/stats.js';
+import system from './routes/system.js';
 import history from './routes/history.js';
 import { requireAuth, requireAdmin } from './auth.js';
+import { config } from './config.js';
 import { manager } from './plugins.js';
 import { runMigrations } from './migrate.js';
 
@@ -85,6 +87,15 @@ app.route('/api/upload', upload);
 app.route('/api/profile', profile);
 app.route('/api/users', users);
 app.route('/api/stats', stats);
+app.route('/api/system', system);
+// Content-Modell der Site fürs Admin (schema-getriebenes Rendern). Jede:r
+// eingeloggte Nutzer:in darf es lesen — der Editor braucht es zum Aufbauen.
+app.get('/api/schema', (c) => c.json({
+  site: config.site || null,
+  auth: config.auth || 'supabase',
+  plugins: config.plugins,
+  collections: config.collections,
+}));
 
 // --- Admin-SPA (im Container mitgebaut, unter /admin serviert) ---
 app.get('/admin', (c) => c.redirect('/admin/'));
diff --git a/cms/core/api/src/routes/system.js b/cms/core/api/src/routes/system.js
new file mode 100644
index 0000000..f774449
--- /dev/null
+++ b/cms/core/api/src/routes/system.js
@@ -0,0 +1,38 @@
+import { Hono } from 'hono';
+import { readFile } from 'node:fs/promises';
+import { config } from '../config.js';
+import { manager } from '../plugins.js';
+import { requireAdmin } from '../auth.js';
+
+// System-/Diagnose-Info für das Admin-Panel: welche core-Version läuft, welche
+// Plugins aktiv sind, welches Content-Modell die Site fährt. Rein lesend, Admin.
+// Reine Builder-Funktion (testbar) — die Route hängt nur Version + Hugo dran.
+export function systemInfo({ version, hugo }) {
+  return {
+    core: { name: 'openbureau-core', version },
+    site: config.site || null,
+    auth: config.auth || 'supabase',
+    plugins: manager.plugins.map((p) => ({
+      name: p.name,
+      routes: (p.routes || []).length,
+      migrations: (p.migrations || []).length,
+    })),
+    collections: config.collections.map((c) => ({
+      kind: c.kind, label: c.label, statKey: c.statKey || null, fields: (c.fields || []).length,
+    })),
+    hugo,
+  };
+}
+
+const system = new Hono();
+system.use('*', requireAdmin);
+system.get('/', async (c) => {
+  let version = '0.0.0';
+  try {
+    const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), 'utf8'));
+    version = pkg.version || version;
+  } catch { /* package.json nicht lesbar → 0.0.0 */ }
+  return c.json(systemInfo({ version, hugo: '0.161.1+extended' }));
+});
+
+export default system;
diff --git a/cms/core/api/test/system.test.js b/cms/core/api/test/system.test.js
new file mode 100644
index 0000000..0ee8332
--- /dev/null
+++ b/cms/core/api/test/system.test.js
@@ -0,0 +1,30 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { fileURLToPath } from 'node:url';
+
+process.env.CMS_CONFIG ||= fileURLToPath(new URL('../../examples/openbureau.config.js', import.meta.url));
+process.env.SUPABASE_URL ||= 'http://localhost';
+process.env.SUPABASE_SERVICE_KEY ||= 'x';
+process.env.JWT_SECRET ||= 'x';
+process.env.SITE_DIR ||= '/tmp/nosite';
+
+const { systemInfo } = await import('../src/routes/system.js');
+
+test('systemInfo reflects core version, plugins and content model', () => {
+  const info = systemInfo({ version: '0.6.0', hugo: '0.161.1+extended' });
+  assert.equal(info.core.name, 'openbureau-core');
+  assert.equal(info.core.version, '0.6.0');
+  assert.equal(info.site, 'openbureau');
+  assert.equal(info.auth, 'supabase'); // openbureau.config.js sets auth: 'supabase'
+  assert.equal(info.hugo, '0.161.1+extended');
+  // dialog plugin is active with its routes + the one migration
+  const dialog = info.plugins.find((p) => p.name === 'dialog');
+  assert.ok(dialog, 'dialog plugin listed');
+  assert.ok(dialog.routes > 0);
+  assert.equal(dialog.migrations, 1);
+  // content model surfaced from the config collections
+  assert.deepEqual(info.collections.map((c) => c.kind).sort(), ['beitrag', 'biblio', 'rubrik', 'seite']);
+  const beitrag = info.collections.find((c) => c.kind === 'beitrag');
+  assert.equal(beitrag.label, 'Beiträge');
+  assert.ok(beitrag.fields > 0);
+});