diff --git a/README.md b/README.md
index d14a96e..c407afe 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Theme Song Booth
 
-**Version:** `v0.3.0`
+**Version:** `v0.4.0`
 
 A Flask web app for a convention booth where visitors request a custom AI-generated theme song, the operator manages the queue, and the final MP3(s) are delivered by email after payment.
 
diff --git a/VERSION b/VERSION
index 0d91a54..1d0ba9e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.0
+0.4.0
diff --git a/templates/admin/request.html b/templates/admin/request.html
index 63fe269..eb89ab3 100644
--- a/templates/admin/request.html
+++ b/templates/admin/request.html
@@ -202,6 +202,7 @@
           <div class="revision-note">
             <h3>📝 Revisions Requested{% if req.revision_count %}<span style="float:right">Revision #{{ req.revision_count }}</span>{% endif %}</h3>
             <p>{{ req.revision_note }}</p>
+            <button type="button" onclick="copyRevisionPromptForHermes()">📋 Copy revision prompt for Hermes</button>
           </div>
           {% endif %}
         </div>
@@ -426,6 +427,27 @@
           el.setSelectionRange(0, 99999);
           navigator.clipboard.writeText(el.value).then(() => alert(label + " copied!"));
       }
+
+      function copyRevisionPromptForHermes() {
+          const callbackUrl = {{ callback_url | tojson }};
+          const currentTitle = {{ req.suno_title | tojson }};
+          const currentStyle = {{ req.suno_style | tojson }};
+          const currentLyrics = {{ req.suno_lyrics | tojson }};
+          const revisionNote = {{ req.revision_note | tojson }};
+          const revisionCount = {{ req.revision_count | tojson }};
+          const data = {
+              request_id: {{ req.id | tojson }},
+              email: {{ req.email | tojson }},
+              name: {{ req.name | tojson }},
+              hobbies: {{ req.hobbies | tojson }},
+              notable_facts: {{ req.notable_facts | tojson }},
+              style_genre: {{ req.style_genre | tojson }},
+              vocal_gender: {{ req.vocal_gender | tojson }},
+              extra_requests: {{ req.extra_requests | tojson }}
+          };
+          const text = `Booth request: ${data.request_id}\\nCustomer email: ${data.email}\\nCallback URL: ${callbackUrl}\\n\\nThis is REVISION #${revisionCount || 1} for this customer.\\n\\nGenerate a NEW Suno Custom Mode prompt that addresses the following revision request, while keeping the same overall theme/persona and matching the customer's original brief as closely as possible.\\n\\nOriginal brief:\\nName: ${data.name}\\nHobbies: ${data.hobbies || '-'}\\nNotable facts: ${data.notable_facts || '-'}\\nStyle / genre: ${data.style_genre || '-'}\\nPreferred singer voice / gender: ${data.vocal_gender || 'No preference'}\\nExtra requests: ${data.extra_requests || '-'}\\n\\nPreviously generated prompt (do not copy verbatim; adapt and improve):\\nTitle: ${currentTitle || '-'}\\nStyle: ${currentStyle || '-'}\\nLyrics:\\n${currentLyrics || '-'}\\n\\nRevision request from customer:\\n${revisionNote || '-'}\\n\\nPOST the new prompt back to the Callback URL as JSON with this shape:\\n{\\n  \\"request_id\\": ${data.request_id},\\n  \\"email\\": \\"${data.email}\\",\\n  \\"suno_title\\": \\"...\\",\\n  \\"suno_style\\": \\"...\\",\\n  \\"suno_lyrics\\": \\"...\\"\\n}`;
+          navigator.clipboard.writeText(text).then(() => alert("Revision prompt copied! Paste into Hermes. Hermes will POST the revised prompt back to the Callback URL."));
+      }
     </script>
   </div>
 </body>