diff --git a/app/Http/Controllers/Api/MeetupEventController.php b/app/Http/Controllers/Api/MeetupEventController.php
index 91ca352..30b6802 100644
--- a/app/Http/Controllers/Api/MeetupEventController.php
+++ b/app/Http/Controllers/Api/MeetupEventController.php
@@ -136,16 +136,17 @@ class MeetupEventController extends Controller
     }
 
     /**
-     * Eigene Meetup-Events auflisten
+     * Bearbeitbare Meetup-Events auflisten
      *
-     * Liefert alle vom authentifizierten Nutzer erstellten Meetup-Events, nach Startzeit absteigend sortiert.
+     * Liefert alle Meetup-Events, die der authentifizierte Nutzer bearbeiten darf
+     * (selbst angelegt ODER Leader des zugehörigen Meetups), nach Startzeit absteigend sortiert.
      */
     public function mine(Request $request): AnonymousResourceCollection
     {
         Gate::authorize('viewAny', MeetupEvent::class);
 
         $meetupEvents = MeetupEvent::query()
-            ->where('created_by', $request->user()->id)
+            ->editableBy($request->user()->id)
             ->orderByDesc('start')
             ->get();
 
diff --git a/app/Mcp/Tools/MeetupEvent/ListMyMeetupEventsTool.php b/app/Mcp/Tools/MeetupEvent/ListMyMeetupEventsTool.php
index d275e44..7b1bdb3 100644
--- a/app/Mcp/Tools/MeetupEvent/ListMyMeetupEventsTool.php
+++ b/app/Mcp/Tools/MeetupEvent/ListMyMeetupEventsTool.php
@@ -12,7 +12,7 @@ use Laravel\Mcp\Server\Tool;
 use Laravel\Mcp\Server\Tools\Annotations\IsReadOnly;
 
 #[IsReadOnly]
-#[Description('Listet alle vom authentifizierten Nutzer erstellten Meetup-Termine, nach Startzeitpunkt absteigend sortiert.')]
+#[Description('Listet alle Meetup-Termine, die der authentifizierte Nutzer bearbeiten darf (selbst angelegt oder Leader des Meetups), nach Startzeitpunkt absteigend sortiert.')]
 class ListMyMeetupEventsTool extends Tool
 {
     public function handle(Request $request): Response
@@ -24,7 +24,7 @@ class ListMyMeetupEventsTool extends Tool
         }
 
         $meetupEvents = MeetupEvent::query()
-            ->where('created_by', $user->getAuthIdentifier())
+            ->editableBy((int) $user->getAuthIdentifier())
             ->orderByDesc('start')
             ->get();
 
diff --git a/app/Models/Meetup.php b/app/Models/Meetup.php
index 33102a2..8735b54 100644
--- a/app/Models/Meetup.php
+++ b/app/Models/Meetup.php
@@ -292,7 +292,7 @@ class Meetup extends Model implements HasMedia
      */
     public function scopeLedBy(Builder $query, int $userId): void
     {
-        $query->whereHas('users', fn (Builder $user) => $user->whereKey($userId)->wherePivot('is_leader', true));
+        $query->whereHas('users', fn (Builder $user) => $user->whereKey($userId)->where('meetup_user.is_leader', true));
     }
 
     /**
diff --git a/app/Models/MeetupEvent.php b/app/Models/MeetupEvent.php
index a954d5f..84120ca 100644
--- a/app/Models/MeetupEvent.php
+++ b/app/Models/MeetupEvent.php
@@ -6,6 +6,7 @@ use App\Enums\RecurrenceType;
 use App\Enums\RsvpStatus;
 use App\Observers\MeetupEventObserver;
 use Illuminate\Database\Eloquent\Attributes\ObservedBy;
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -55,6 +56,18 @@ class MeetupEvent extends Model
         });
     }
 
+    /**
+     * Termine, die der Nutzer bearbeiten darf: selbst angelegt ODER Leader des
+     * zugehörigen Meetups (deckungsgleich mit MeetupEventPolicy::update).
+     */
+    public function scopeEditableBy(Builder $query, int $userId): void
+    {
+        $query->where(function (Builder $query) use ($userId) {
+            $query->where('created_by', $userId)
+                ->orWhereHas('meetup', fn (Builder $meetup) => $meetup->ledBy($userId));
+        });
+    }
+
     public function createdBy(): BelongsTo
     {
         return $this->belongsTo(User::class, 'created_by');
diff --git a/tests/Feature/Api/MeetupEventWriteApiTest.php b/tests/Feature/Api/MeetupEventWriteApiTest.php
index 8086776..3bc50a2 100644
--- a/tests/Feature/Api/MeetupEventWriteApiTest.php
+++ b/tests/Feature/Api/MeetupEventWriteApiTest.php
@@ -106,17 +106,28 @@ it('forbids updating someone elses', function () {
     $response->assertForbidden();
 });
 
-it('returns only own in mine index', function () {
+it('returns own and led-meetup events in mine index', function () {
     Sanctum::actingAs($user = User::factory()->create());
 
+    // 2 selbst angelegt
     MeetupEvent::factory()->count(2)->create(['created_by' => $user->id]);
+
+    // 1 Termin eines Co-Leaders im selben (von $user geführten) Meetup -> sichtbar
+    $ledMeetup = Meetup::factory()->create();
+    $ledMeetup->users()->syncWithoutDetaching([$user->id => ['is_leader' => true]]);
+    MeetupEvent::factory()->create([
+        'meetup_id' => $ledMeetup->id,
+        'created_by' => User::factory()->create()->id,
+    ]);
+
+    // 1 fremder Termin in einem Meetup ohne Leaderschaft -> NICHT sichtbar
     MeetupEvent::factory()->create(['created_by' => User::factory()->create()->id]);
 
     $response = $this->getJson('/api/my-meetup-events');
 
     $response->assertSuccessful();
 
-    expect($response->json('data'))->toHaveCount(2);
+    expect($response->json('data'))->toHaveCount(3);
 });
 
 it('forbids viewing someone elses in mine show', function () {
diff --git a/tests/Feature/Livewire/MeetupMountTest.php b/tests/Feature/Livewire/MeetupMountTest.php
index a30eb3c..ccc8f15 100644
--- a/tests/Feature/Livewire/MeetupMountTest.php
+++ b/tests/Feature/Livewire/MeetupMountTest.php
@@ -70,12 +70,14 @@ it('aborts meetups.edit with 403 when the user is neither creator nor super-admi
 });
 
 it('mounts meetups.create-edit-events for new event', function () {
-    actingAsUser();
+    $leader = actingAsUser();
+    $this->meetup->users()->syncWithoutDetaching([$leader->id => ['is_leader' => true]]);
     Livewire::test('meetups.create-edit-events', ['meetup' => $this->meetup])->assertStatus(200);
 });
 
 it('mounts meetups.create-edit-events for existing event', function () {
-    actingAsUser();
+    $leader = actingAsUser();
+    $this->meetup->users()->syncWithoutDetaching([$leader->id => ['is_leader' => true]]);
     Livewire::test('meetups.create-edit-events', [
         'meetup' => $this->meetup,
         'event' => $this->event,
@@ -83,7 +85,8 @@ it('mounts meetups.create-edit-events for existing event', function () {
 });
 
 it('does not crash with PropertyNotFoundException when startDate is set to null in series mode', function () {
-    actingAsUser();
+    $leader = actingAsUser();
+    $this->meetup->users()->syncWithoutDetaching([$leader->id => ['is_leader' => true]]);
     Livewire::test('meetups.create-edit-events', ['meetup' => $this->meetup])
         ->set('seriesMode', true)
         ->set('endDate', '2026-10-27')
@@ -93,7 +96,8 @@ it('does not crash with PropertyNotFoundException when startDate is set to null
 });
 
 it('does not crash when endDate is set to null in series mode', function () {
-    actingAsUser();
+    $leader = actingAsUser();
+    $this->meetup->users()->syncWithoutDetaching([$leader->id => ['is_leader' => true]]);
     Livewire::test('meetups.create-edit-events', ['meetup' => $this->meetup])
         ->set('seriesMode', true)
         ->set('endDate', null)
@@ -102,7 +106,8 @@ it('does not crash when endDate is set to null in series mode', function () {
 });
 
 it('does not crash when startTime is set to null', function () {
-    actingAsUser();
+    $leader = actingAsUser();
+    $this->meetup->users()->syncWithoutDetaching([$leader->id => ['is_leader' => true]]);
     Livewire::test('meetups.create-edit-events', ['meetup' => $this->meetup])
         ->set('startTime', null)
         ->assertStatus(200)
diff --git a/tests/Feature/Mcp/MeetupEventMcpToolTest.php b/tests/Feature/Mcp/MeetupEventMcpToolTest.php
index 9a96fdf..c83ea46 100644
--- a/tests/Feature/Mcp/MeetupEventMcpToolTest.php
+++ b/tests/Feature/Mcp/MeetupEventMcpToolTest.php
@@ -11,7 +11,7 @@ use App\Models\User;
 
 it('lets an authenticated user create a meetup event and stamps created_by', function () {
     $user = User::factory()->create();
-    $meetup = Meetup::factory()->create();
+    $meetup = Meetup::factory()->create(['created_by' => $user->id]);
 
     $response = EinundzwanzigServer::actingAs($user)->tool(CreateMeetupEventTool::class, [
         'meetup_id' => $meetup->id,
diff --git a/tests/Feature/Mcp/MeetupMembershipMcpTest.php b/tests/Feature/Mcp/MeetupMembershipMcpTest.php
index 76766c4..ecda9c7 100644
--- a/tests/Feature/Mcp/MeetupMembershipMcpTest.php
+++ b/tests/Feature/Mcp/MeetupMembershipMcpTest.php
@@ -53,11 +53,27 @@ it('makes the creator a leader so the meetup shows in my meetups', function () {
     ]);
 });
 
-it('lets a member add an event to a joined meetup', function () {
+it('forbids a non-leader member from adding an event but allows a leader', function () {
     $user = User::factory()->create();
     $meetup = Meetup::factory()->create(['name' => 'Einundzwanzig Dortmund']);
     $meetup->users()->attach($user->id, ['is_leader' => false]);
 
+    // Reines Mitglied (is_leader = false) darf keinen Termin anlegen.
+    EinundzwanzigServer::actingAs($user)
+        ->tool(CreateMeetupEventTool::class, [
+            'meetup' => 'Einundzwanzig Dortmund',
+            'start' => '2026-08-01 18:00:00',
+        ])
+        ->assertHasErrors();
+
+    $this->assertDatabaseMissing('meetup_events', [
+        'meetup_id' => $meetup->id,
+        'created_by' => $user->id,
+    ]);
+
+    // Als Leader darf derselbe Nutzer den Termin anlegen.
+    $meetup->users()->syncWithoutDetaching([$user->id => ['is_leader' => true]]);
+
     EinundzwanzigServer::actingAs($user)
         ->tool(CreateMeetupEventTool::class, [
             'meetup' => 'Einundzwanzig Dortmund',