diff --git a/pets.html b/pets.html
index 9dbf589..302293c 100644
--- a/pets.html
+++ b/pets.html
@@ -59,6 +59,17 @@
           </div>
           <p id="vdesc" style="color:var(--muted);font-size:13.5px;margin:10px 0 0"></p>
         </div>
+        <div class="field">
+          <label for="pformula">How the voice is described to the camera</label>
+          <span class="hint">This exact wording goes into every shot prompt, unchanged, so your pet sounds
+            like one character rather than a different one each time. Keep it to sound only — pitch, weight,
+            pace, age. Words like “actress” or “warrior” describe a role and end up in the picture.</span>
+          <div style="display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:8px">
+            <select id="pformulapreset" style="flex:1 1 240px"><option value="">Start from a preset…</option></select>
+            <button type="button" class="btn ghost" id="resetformula">Use the voice&rsquo;s own</button>
+          </div>
+          <input type="text" id="pformula" placeholder="deep gravelly middle-aged american male baritone">
+        </div>
         <div class="field">
           <label for="pvoice">Anything else about how they talk <span style="color:var(--muted);font-weight:400">(optional)</span></label>
           <span class="hint">This goes to the writer, not the recording — it shapes the words your pet uses, not the voice itself.</span>
@@ -104,8 +115,34 @@ function describeVoice() {
     + '</span>';
 }
 
+// Filled from the server so the presets cannot drift from the ones the prompt
+// builder knows about.
+var formulaPresets = [];
+
+function fillFormulaPresets(list) {
+  formulaPresets = list || [];
+  document.getElementById("pformulapreset").innerHTML =
+    '<option value="">Start from a preset…</option>'
+    + formulaPresets.map(function (d) {
+        return '<option value="' + esc(d.formula) + '">' + esc(d.label) + ' — ' + esc(d.formula) + '</option>';
+      }).join("");
+}
+
+document.getElementById("pformulapreset").addEventListener("change", function () {
+  if (this.value) document.getElementById("pformula").value = this.value;
+});
+
+// Empty means “whatever the chosen voice says”, which is what the server does
+// with a blank field, so clearing it is the honest way to reset.
+document.getElementById("resetformula").addEventListener("click", function () {
+  var v = voiceById(document.getElementById("pvoiceid").value);
+  document.getElementById("pformula").value = v ? v.formula : "";
+  document.getElementById("pformulapreset").value = "";
+});
+
 async function loadVoices() {
   var r = await api("camera_presets", {});
+  fillFormulaPresets(r.voice_descriptions);
   var sel = document.getElementById("pvoiceid");
   if (!r.ok || !(r.voices || []).length) {
     sel.innerHTML = '<option value="">Voices unavailable</option>';
@@ -217,6 +254,7 @@ document.getElementById("petform").addEventListener("submit", async function (e)
     appearance: document.getElementById("pappear").value.trim(),
     personality: document.getElementById("pperson").value.trim(),
     voice: document.getElementById("pvoice").value.trim(),
+    voice_formula: document.getElementById("pformula").value.trim(),
     eleven_voice_id: document.getElementById("pvoiceid").value
   };
   if (!pet.name) { showMsg("msg", "Your pet needs a name."); return; }
@@ -234,7 +272,8 @@ document.getElementById("petform").addEventListener("submit", async function (e)
 
 function resetForm() {
   document.getElementById("petid").value = "";
-  ["pname", "pbreed", "pappear", "pperson", "pvoice"].forEach(function (i) { document.getElementById(i).value = ""; });
+  ["pname", "pbreed", "pappear", "pperson", "pvoice", "pformula"].forEach(function (i) { document.getElementById(i).value = ""; });
+  document.getElementById("pformulapreset").value = "";
   document.getElementById("pvoiceid").value = "";
   describeVoice();
   document.getElementById("pspecies").value = "dog";
@@ -281,6 +320,8 @@ document.getElementById("list").addEventListener("click", async function (e) {
     document.getElementById("pperson").value = p.personality || "";
     document.getElementById("pvoice").value = p.voice || "";
     document.getElementById("pvoiceid").value = p.eleven_voice_id || "";
+    document.getElementById("pformula").value = p.voice_formula || "";
+    document.getElementById("pformulapreset").value = "";
     describeVoice();
     document.getElementById("formtitle").textContent = "Edit " + (p.name || "pet");
     document.getElementById("cancel").style.display = "";