diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86ff11f4..830b5cd9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+- Chat: selecting a user-installed skill from the slash command menu now invokes the skill and injects its content, instead of inserting the skill name as plain text.
+- UI: typography classes (ui-header, ui-label, meta, micro) now actually shrink on mobile viewports — they previously rendered at the same size as desktop despite the mobile clamp rules.
 ## [1.13.5] - 2026-06-27
 
 - CLI: global web installs no longer crash on startup when tunnel commands load ngrok capabilities.
diff --git a/packages/ui/src/styles/mobile.css b/packages/ui/src/styles/mobile.css
index 20cb5b9c..d03f4873 100644
--- a/packages/ui/src/styles/mobile.css
+++ b/packages/ui/src/styles/mobile.css
@@ -44,20 +44,20 @@
   :root.mobile-pointer:not(.desktop-runtime) {
     --text-markdown: 1rem;
     --text-code: 0.875rem;
-    --text-ui-header: 0.9375rem;
-    --text-ui-label: 0.875rem;
-    --text-meta: 0.875rem;
-    --text-micro: 0.8125rem;
+    --text-ui-header: 0.875rem;
+    --text-ui-label: 0.75rem;
+    --text-meta: 0.75rem;
+    --text-micro: 0.6875rem;
   }
 
   /* Force override with higher specificity */
   :root.mobile-pointer:not(.desktop-runtime) * {
     --text-markdown: 1rem !important;
     --text-code: 0.875rem !important;
-    --text-ui-header: 0.9375rem !important;
-    --text-ui-label: 0.875rem !important;
-    --text-meta: 0.875rem !important;
-    --text-micro: 0.8125rem !important;
+    --text-ui-header: 0.875rem !important;
+    --text-ui-label: 0.75rem !important;
+    --text-meta: 0.75rem !important;
+    --text-micro: 0.6875rem !important;
   }
 
   /* Additional override for elements using typography classes */
@@ -325,19 +325,19 @@
     }
 
     .typography-ui-header {
-      font-size: 0.9375rem !important;
+      font-size: 0.875rem !important;
     }
 
     .typography-ui-label {
-      font-size: 0.875rem !important;
+      font-size: 0.75rem !important;
     }
 
     .typography-meta {
-      font-size: 0.875rem !important;
+      font-size: 0.75rem !important;
     }
 
     .typography-micro {
-      font-size: 0.8125rem !important;
+      font-size: 0.6875rem !important;
     }
 
     /* Fix font size for tool displays */