feat: add stitch-ui-design skill and sync generated files

data/catalog.json

@@ -1,6 +1,6 @@
 {
-  "generatedAt": "2026-01-30T19:35:13.007Z",
-  "total": 617,
+  "generatedAt": "2026-01-31T07:34:21.497Z",
+  "total": 618,
   "skills": [
     {
       "id": "3d-web-experience",
@@ -12900,6 +12900,31 @@
       ],
       "path": "skills/startup-metrics-framework/SKILL.md"
     },
+    {
+      "id": "stitch-ui-design",
+      "name": "stitch-ui-design",
+      "description": "Expert guide for creating effective prompts for Google Stitch AI UI design tool. Use when user wants to design UI/UX in Stitch, create app interfaces, generate mobile/web designs, or needs help crafting Stitch prompts. Covers prompt structure, specificity techniques, iteration strategies, and design-to-code workflows for Stitch by Google.",
+      "category": "data-ai",
+      "tags": [
+        "stitch",
+        "ui"
+      ],
+      "triggers": [
+        "stitch",
+        "ui",
+        "creating",
+        "effective",
+        "prompts",
+        "google",
+        "ai",
+        "user",
+        "wants",
+        "ux",
+        "app",
+        "interfaces"
+      ],
+      "path": "skills/stitch-ui-design/SKILL.md"
+    },
     {
       "id": "stride-analysis-patterns",
       "name": "stride-analysis-patterns",