diff --git a/src/anthias_server/app/static/src/home.ts b/src/anthias_server/app/static/src/home.ts
index 316d263d..77daff8c 100644
--- a/src/anthias_server/app/static/src/home.ts
+++ b/src/anthias_server/app/static/src/home.ts
@@ -223,13 +223,14 @@ function homeApp(): HomeAppData {
     },
 
     // Multi-file upload (issue #3045). The server's assets_upload
-    // endpoint takes exactly one file per POST, so a multi-select
-    // batch is uploaded sequentially — one XHR per file — rather
-    // than via htmx's single-form submit. Driving it from JS (instead
-    // of hx-post on the <form>) is what makes "X of N" progress and
-    // per-file failure handling possible; htmx would only ever see
-    // the first file in the input. Mirrors the pre-#2818 React
-    // behaviour added in #2778.
+    // endpoint reads exactly one file per request
+    // (request.FILES.get('file_upload')), so a single htmx form POST —
+    // which would carry every selected file in the multipart body —
+    // would still only create one asset. uploadFiles() instead uploads
+    // the batch sequentially, one XHR (one file) per request. Driving
+    // it from JS (instead of hx-post on the <form>) is also what makes
+    // "X of N" progress and per-file failure handling possible. Mirrors
+    // the pre-#2818 React behaviour added in #2778.
     async uploadFiles(input: HTMLInputElement) {
       const files = input.files ? Array.from(input.files) : []
       const form = input.form
diff --git a/src/anthias_server/app/templates/_asset_modal.html b/src/anthias_server/app/templates/_asset_modal.html
index 0d481d2d..91f50780 100644
--- a/src/anthias_server/app/templates/_asset_modal.html
+++ b/src/anthias_server/app/templates/_asset_modal.html
@@ -66,12 +66,14 @@
         </div>
       </form>
 
-      {% comment %} The file tab is NOT htmx-managed. assets_upload takes
-         one file per POST, so a multi-select batch is uploaded
-         sequentially by uploadFiles() in home.ts (one XHR per file) —
-         htmx's single-form submit would only ever send the first file.
-         The action / enctype attributes stay so uploadFiles() can read
-         the endpoint URL off the form and the CSRF token off its input.
+      {% comment %} The file tab is NOT htmx-managed. assets_upload reads
+         one file per request (request.FILES.get('file_upload')), so a
+         single htmx form POST — even though it would carry every
+         selected file in the multipart body — would only ever get one
+         asset created. uploadFiles() in home.ts instead uploads the
+         batch sequentially, one XHR (one file) per request. The action
+         / enctype attributes stay so uploadFiles() can read the endpoint
+         URL off the form and the CSRF token off its input.
       {% endcomment %}
       <form
         x-show="tab === 'file'"