diff --git a/backend/extensions/Squidex.Extensions/Actions/Comment/CommentAction.cs b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentAction.cs
new file mode 100644
index 000000000..68c03d9fc
--- /dev/null
+++ b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentAction.cs
@@ -0,0 +1,32 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System.ComponentModel.DataAnnotations;
+using Squidex.Domain.Apps.Core.HandleRules;
+using Squidex.Domain.Apps.Core.Rules;
+
+namespace Squidex.Extensions.Actions.Comment
+{
+    [RuleAction(
+        Title = "Comment",
+        IconImage = "<svg version='1.1' xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'><path d='M20.016 15.984v-12h-16.031v14.016l2.016-2.016h14.016zM20.016 2.016c1.078 0 1.969 0.891 1.969 1.969v12c0 1.078-0.891 2.016-1.969 2.016h-14.016l-3.984 3.984v-18c0-1.078 0.891-1.969 1.969-1.969h16.031z'></path></svg>",
+        IconColor = "#3389ff",
+        Display = "Create comment",
+        Description = "Create a comment for a content event.")]
+    public sealed class CommentAction : RuleAction
+    {
+        [Required]
+        [Display(Name = "Text", Description = "The comment text.")]
+        [DataType(DataType.MultilineText)]
+        [Formattable]
+        public string Text { get; set; }
+
+        [Display(Name = "Client", Description = "An optional client name.")]
+        [DataType(DataType.Text)]
+        public string Client { get; set; }
+    }
+}
diff --git a/backend/extensions/Squidex.Extensions/Actions/Comment/CommentActionHandler.cs b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentActionHandler.cs
new file mode 100644
index 000000000..844aca37b
--- /dev/null
+++ b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentActionHandler.cs
@@ -0,0 +1,85 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Squidex.Domain.Apps.Core.HandleRules;
+using Squidex.Domain.Apps.Core.HandleRules.EnrichedEvents;
+using Squidex.Domain.Apps.Entities.Comments.Commands;
+using Squidex.Infrastructure;
+using Squidex.Infrastructure.Commands;
+using Squidex.Infrastructure.Reflection;
+
+namespace Squidex.Extensions.Actions.Comment
+{
+    public sealed class CommentActionHandler : RuleActionHandler<CommentAction, CommentJob>
+    {
+        private const string Description = "Send a Comment";
+        private readonly ICommandBus commandBus;
+
+        public CommentActionHandler(RuleEventFormatter formatter, ICommandBus commandBus)
+            : base(formatter)
+        {
+            Guard.NotNull(commandBus);
+
+            this.commandBus = commandBus;
+        }
+
+        protected override (string Description, CommentJob Data) CreateJob(EnrichedEvent @event, CommentAction action)
+        {
+            if (@event is EnrichedContentEvent contentEvent)
+            {
+                var text = Format(action.Text, @event);
+
+                var actor = contentEvent.Actor;
+
+                if (!string.IsNullOrEmpty(action.Client))
+                {
+                    actor = new RefToken(RefTokenType.Client, action.Client);
+                }
+
+                var ruleJob = new CommentJob
+                {
+                    AppId = contentEvent.AppId,
+                    Actor = actor,
+                    CommentsId = contentEvent.Id,
+                    Text = text
+                };
+
+                return (Description, ruleJob);
+            }
+
+            return ("Ignore", new CommentJob());
+        }
+
+        protected override async Task<Result> ExecuteJobAsync(CommentJob job, CancellationToken ct = default)
+        {
+            if (job.CommentsId == Guid.Empty)
+            {
+                return Result.Ignored();
+            }
+
+            var command = SimpleMapper.Map(job, new CreateComment());
+
+            await commandBus.PublishAsync(command);
+
+            return Result.Success($"Commented: {job.Text}");
+        }
+    }
+
+    public sealed class CommentJob
+    {
+        public NamedId<Guid> AppId { get; set; }
+
+        public RefToken Actor { get; set; }
+
+        public Guid CommentsId { get; set; }
+
+        public string Text { get; set; }
+    }
+}
diff --git a/backend/extensions/Squidex.Extensions/Actions/Comment/CommentPlugin.cs b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentPlugin.cs
new file mode 100644
index 000000000..013cbc42d
--- /dev/null
+++ b/backend/extensions/Squidex.Extensions/Actions/Comment/CommentPlugin.cs
@@ -0,0 +1,21 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Squidex.Infrastructure.Plugins;
+
+namespace Squidex.Extensions.Actions.Comment
+{
+    public sealed class CommentPlugin : IPlugin
+    {
+        public void ConfigureServices(IServiceCollection services, IConfiguration config)
+        {
+            services.AddRuleAction<CommentAction, CommentActionHandler>();
+        }
+    }
+}