Usage added to Tools

Author: ToolboxAid

tools/index.html

@@ -29,6 +29,9 @@
     <section class="hero">
       <p class="subtitle">Launch the first-class art and scene tools from one registry-driven surface. The landing page
         shows only active, user-facing tools and keeps preserved legacy content out of the main launcher.</p>
+      <p class="subtitle">Use Open Tool for normal day-to-day use, cleanest behavior, and quickest direct debugging.<br />
+        Use Open In Host for integration checks: shared shell behavior, tool switching (prev/next), and optional JSON
+        state handoff.</p>
     </section>
 
     <section>