diff --git a/changelog.d/1462-voice-alias-hint-budget.md b/changelog.d/1462-voice-alias-hint-budget.md
new file mode 100644
index 000000000..ae0b1be38
--- /dev/null
+++ b/changelog.d/1462-voice-alias-hint-budget.md
@@ -0,0 +1,5 @@
+- Leave layer aliases the layer id already spells, such as "dams" for
+  `local-dams`, out of the voice layer hint. The Realtime prompt is 305
+  characters shorter, leaving room under the 52,000 gate for new
+  voice-toggleable layers; every alias is still accepted (@quanticsoul4772,
+  #1462).
diff --git a/src/firstRunExperience.test.mjs b/src/firstRunExperience.test.mjs
index 56548c1da..81c1cfda5 100644
--- a/src/firstRunExperience.test.mjs
+++ b/src/firstRunExperience.test.mjs
@@ -1029,10 +1029,11 @@ test('the voice TOOL SCHEMA matches the pinned contract — the mission mapping
   // Panel adds timeout and named voice/provider targets; consolidated guidance
   // preserves the mission mapping and globe-rotation arguments.
   // S2 GhostMaps extends the generated layer enums; both feature contracts remain.
-  assert.equal(block.length, 31206, 'serialized tool schema length drifted');
+  // The layer alias hint leaves out aliases the layer id already spells.
+  assert.equal(block.length, 30901, 'serialized tool schema length drifted');
   assert.equal(
     crypto.createHash('sha256').update(block).digest('hex'),
-    'f772df95404494bf492e02fde1beabffdfe61986940bffd0cf9ad5a38d768746',
+    '9e1bd8fde648953c47718ba248758415a95c1484b0da6369df6b89b0505c0de2',
     'the first-run missions must ride EXISTING tools: no schema edit, no cache bust',
   );
   const instructions = fs.readFileSync(
diff --git a/src/voice/actionSchemas.test.mjs b/src/voice/actionSchemas.test.mjs
index 4e6586729..6f16f7606 100644
--- a/src/voice/actionSchemas.test.mjs
+++ b/src/voice/actionSchemas.test.mjs
@@ -47,7 +47,8 @@ test('the complete Realtime tool payload pins the manifest-generated layer relea
     // is consolidated without changing either feature's arguments.
     // Snow leaves the set_visual_style enum.
     // The Operator HUD layout leaves set_hud's layout enum.
-    'f47a7f78f13b1f79978fa524fad2618e32bd813e1a5dfd746bf35d29909fc91b',
+    // The layer alias hint leaves out aliases the layer id already spells.
+    'e65812db60a2702cebb496fca257cb04a28f1bbbf250cb9ab65a3db33005e0c8',
   );
 });
 
diff --git a/src/voice/layerManifest.js b/src/voice/layerManifest.js
index 267399e58..962bf6949 100644
--- a/src/voice/layerManifest.js
+++ b/src/voice/layerManifest.js
@@ -525,22 +525,31 @@ const SELF_EVIDENT_IDS = new Set([
   'radio',
   'wind',
   'directions',
-  // The brand is already the layer id; all spoken aliases remain accepted.
-  's2-ghostmaps',
 ]);
 
+/** Lower case with spaces and hyphens removed: "Data centers" → "datacenters". */
+const spelled = (text) => text.toLowerCase().replace(/[\s-]+/g, '');
+
 /**
  * Compact model-facing alias hint: "alias/alias→id; …" for toggleable layers
  * whose id is not already the spoken word. At most two aliases per layer keep
- * the tool JSON small; the runner accepts the full alias list.
+ * the tool JSON small; the runner accepts the full alias list. Of those two,
+ * an alias the id already spells ("dams"→local-dams, "weather radar"→
+ * weather-radar) is left out, and a layer with neither left gets no hint.
  * @returns {string} One line for the layerId description.
  */
 export function voiceLayerAliasHint() {
   return VOICE_LAYER_MANIFEST.filter(
-    (entry) =>
-      entry.toggle && entry.aliases.length && !SELF_EVIDENT_IDS.has(entry.id),
+    (entry) => entry.toggle && !SELF_EVIDENT_IDS.has(entry.id),
   )
-    .map((entry) => `${entry.aliases.slice(0, 2).join('/')}→${entry.id}`)
+    .map((entry) => ({
+      id: entry.id,
+      aliases: entry.aliases
+        .slice(0, 2)
+        .filter((alias) => !spelled(entry.id).includes(spelled(alias))),
+    }))
+    .filter((entry) => entry.aliases.length)
+    .map((entry) => `${entry.aliases.join('/')}→${entry.id}`)
     .join(';');
 }
 
diff --git a/src/voice/layerManifest.test.mjs b/src/voice/layerManifest.test.mjs
index d0222b934..ab382c460 100644
--- a/src/voice/layerManifest.test.mjs
+++ b/src/voice/layerManifest.test.mjs
@@ -9,6 +9,7 @@ import {
   VOICE_TOGGLE_LAYER_IDS,
   VOICE_CONTEXT_LAYER_IDS,
   VOICE_QUERY_LAYER_IDS,
+  voiceLayerAliasHint,
   voiceLayerAliasMap,
 } from './layerManifest.js';
 
@@ -78,6 +79,23 @@ test('tool enums are generated from the manifest', () => {
   assert.ok(panels.includes('weather-panel') && panels.includes('recent-imagery-panel'));
 });
 
+test('the alias hint leaves out names the layer id already spells', () => {
+  const hint = voiceLayerAliasHint();
+  const entries = hint.split(';').map((entry) => entry.split('→'));
+  const flat = (text) => text.toLowerCase().replace(/[\s-]+/g, '');
+  for (const [aliases, id] of entries) {
+    for (const alias of aliases.split('/')) {
+      assert.ok(!flat(id).includes(flat(alias)), `"${alias}" is already spelled by ${id}`);
+    }
+  }
+  const ids = entries.map(([, id]) => id);
+  assert.ok(!ids.includes('local-dams'), 'a layer left with no alias gets no entry');
+  assert.ok(!ids.includes('weather-radar'));
+  assert.match(hint, /(^|;)aqhi→air-quality(;|$)/, 'an alias the id does not spell stays');
+  assert.match(hint, /(^|;)hurricanes→weather-cyclones(;|$)/);
+  assert.match(hint, /(^|;)fires\/wildfires→local-firms(;|$)/);
+});
+
 test('spoken aliases resolve to real layers, keep every legacy phrase and never collide', () => {
   const aliases = voiceLayerAliasMap();
   for (const id of aliases.values()) assert.ok(manifestIds.includes(id), id);