diff --git a/app/routes/plugins.py b/app/routes/plugins.py
index 219772c..da35d3b 100644
--- a/app/routes/plugins.py
+++ b/app/routes/plugins.py
@@ -44,46 +44,24 @@ async def list_plugins(
     return {"plugins": plugins, "total": len(plugins)}
 
 
-@router.get("/{name}")
-async def get_plugin_detail(
-    name: str,
+@router.get("/active-manifests")
+async def get_active_manifests(
     db: AsyncSession = Depends(get_db),
-    current_user: dict = Depends(require_permission("plugins:read")),
+    # ARCH-003 fix: every authenticated user needs the UI manifests for the
+    # dynamic sidebar/routes — the data is pure UI metadata; actual data
+    # access stays protected by each endpoint's own permission.
+    current_user: dict = Depends(get_current_user),
 ):
-    """Get detail for a single plugin: manifest metadata + DB status.
+    """Get UI manifests for all active plugins.
 
-    BUG-024 fix: this endpoint was missing entirely (404).
+    Returns menu_items, page_routes, detail_tabs, settings_pages, and
+    dashboard_widgets contributed by each active plugin. Used by the
+    frontend PluginRegistry to dynamically register routes, sidebar items,
+    settings pages, and detail tabs.
     """
-    registry = get_registry()
-    plugin = registry.get_plugin(name)
-    if plugin is None:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND,
-            detail={"detail": f"Plugin '{name}' not found", "code": "not_found"},
-        )
-
-    m = plugin.manifest
-    record = registry.get_db_status(name)
-    return {
-        "name": m.name,
-        "version": m.version,
-        "display_name": getattr(m, "display_name", None) or m.name,
-        "description": getattr(m, "description", None),
-        "author": getattr(m, "author", None),
-        "is_core": bool(getattr(m, "is_core", False)),
-        "permissions": list(m.permissions),
-        "depends_on": list(getattr(m, "depends_on", []) or []),
-        "status": {
-            "installed": record is not None,
-            "active": bool(record.active) if record is not None else False,
-            "version_installed": getattr(record, "version", None),
-        },
-        "menu_items": len(getattr(m, "menu_items", []) or []),
-        "page_routes": len(getattr(m, "page_routes", []) or []),
-        "detail_tabs": len(getattr(m, "detail_tabs", []) or []),
-        "settings_pages": len(getattr(m, "settings_pages", []) or []),
-        "dashboard_widgets": len(getattr(m, "dashboard_widgets", []) or []),
-    }
+    service = get_plugin_service()
+    manifests = await service.get_active_manifests(db)
+    return {"plugins": manifests, "total": len(manifests)}
 
 
 @router.get("/manifest")
@@ -134,24 +112,46 @@ async def check_plugin_updates(
     return {"updates": updates, "total": len(updates)}
 
 
-@router.get("/active-manifests")
-async def get_active_manifests(
+@router.get("/{name}")
+async def get_plugin_detail(
+    name: str,
     db: AsyncSession = Depends(get_db),
-    # ARCH-003 fix: every authenticated user needs the UI manifests for the
-    # dynamic sidebar/routes — the data is pure UI metadata; actual data
-    # access stays protected by each endpoint's own permission.
-    current_user: dict = Depends(get_current_user),
+    current_user: dict = Depends(require_permission("plugins:read")),
 ):
-    """Get UI manifests for all active plugins.
+    """Get detail for a single plugin: manifest metadata + DB status.
 
-    Returns menu_items, page_routes, detail_tabs, settings_pages, and
-    dashboard_widgets contributed by each active plugin. Used by the
-    frontend PluginRegistry to dynamically register routes, sidebar items,
-    settings pages, and detail tabs.
+    BUG-024 fix: this endpoint was missing entirely (404).
     """
-    service = get_plugin_service()
-    manifests = await service.get_active_manifests(db)
-    return {"plugins": manifests, "total": len(manifests)}
+    registry = get_registry()
+    plugin = registry.get_plugin(name)
+    if plugin is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail={"detail": f"Plugin '{name}' not found", "code": "not_found"},
+        )
+
+    m = plugin.manifest
+    record = registry.get_db_status(name)
+    return {
+        "name": m.name,
+        "version": m.version,
+        "display_name": getattr(m, "display_name", None) or m.name,
+        "description": getattr(m, "description", None),
+        "author": getattr(m, "author", None),
+        "is_core": bool(getattr(m, "is_core", False)),
+        "permissions": list(m.permissions),
+        "depends_on": list(getattr(m, "depends_on", []) or []),
+        "status": {
+            "installed": record is not None,
+            "active": bool(record.active) if record is not None else False,
+            "version_installed": getattr(record, "version", None),
+        },
+        "menu_items": len(getattr(m, "menu_items", []) or []),
+        "page_routes": len(getattr(m, "page_routes", []) or []),
+        "detail_tabs": len(getattr(m, "detail_tabs", []) or []),
+        "settings_pages": len(getattr(m, "settings_pages", []) or []),
+        "dashboard_widgets": len(getattr(m, "dashboard_widgets", []) or []),
+    }
 
 
 @router.get("/{name}/config")
diff --git a/tests/test_plugin_route_order.py b/tests/test_plugin_route_order.py
new file mode 100644
index 0000000..0ef9e18
--- /dev/null
+++ b/tests/test_plugin_route_order.py
@@ -0,0 +1,40 @@
+"""Regressionstest: FastAPI-Route-Matching im Plugin-Router.
+
+GET /{name} (d9aed51) wurde vor /active-manifests registriert und
+verschluckte literale Routen: /plugins/active-manifests wurde als
+Plugin-Name 'active-manifests' interpretiert → 404 → Frontend-Sidebar
+ohne Plugin-Menüeinträge (nur statische Dashboard/Kontakte/System).
+
+Fix: statische Routen werden vor dynamischen /{name} registriert.
+"""
+from fastapi.routing import APIRoute
+
+from app.routes.plugins import router
+
+
+def test_active_manifests_registered_before_dynamic_name_route():
+    """active-manifests muss vor /{name} registriert sein (FastAPI matcht in Reihenfolge)."""
+    paths = [r.path for r in router.routes if isinstance(r, APIRoute)]
+    assert '/api/v1/plugins/active-manifests' in paths, 'active-manifests Route fehlt'
+    assert '/api/v1/plugins/{name}' in paths, '/{name} Route fehlt'
+    assert paths.index('/api/v1/plugins/active-manifests') < paths.index(
+        '/api/v1/plugins/{name}'
+    ), (
+        '/active-manifests muss VOR /{name} registriert werden — '
+        'sonst matcht /{name} das Literal und liefert 404 '
+        '(Sidebar ohne Plugin-Menüeinträge)'
+    )
+
+
+def test_other_literal_routes_also_before_dynamic_name_route():
+    """Alle literalen Unterrouten müssen vor /{name} registriert sein."""
+    literals = [
+        '/api/v1/plugins/manifest',
+        '/api/v1/plugins/updates',
+        '/api/v1/plugins/active-manifests',
+    ]
+    paths = [r.path for r in router.routes if isinstance(r, APIRoute)]
+    name_idx = paths.index('/api/v1/plugins/{name}')
+    for lit in literals:
+        assert lit in paths, f'{lit} fehlt'
+        assert paths.index(lit) < name_idx, f'{lit} muss vor /{{name}} registriert sein'