diff --git a/webui/src/web-components/sketch-monaco-view.ts b/webui/src/web-components/sketch-monaco-view.ts
index 9f3fa50..b74097a 100644
--- a/webui/src/web-components/sketch-monaco-view.ts
+++ b/webui/src/web-components/sketch-monaco-view.ts
@@ -373,6 +373,7 @@
                 placeholder="Type your comment here..."
                 .value="${this.commentText}"
                 @input="${this.handleCommentInput}"
+                @keydown="${this.handleCommentKeydown}"
               ></textarea>
               <div class="flex justify-end gap-2">
                 <button
@@ -403,6 +404,17 @@
   }
 
   /**
+   * Handle keyboard shortcuts in the comment textarea
+   */
+  private handleCommentKeydown(e: KeyboardEvent) {
+    // Check for Command+Enter (Mac) or Ctrl+Enter (other platforms)
+    if (e.key === 'Enter' && (e.metaKey || e.ctrlKey)) {
+      e.preventDefault();
+      this.submitComment();
+    }
+  }
+
+  /**
    * Get CSS class for selected text preview based on number of lines
    */
   private getPreviewCssClass(): string {