diff --git a/tools/installer/bin/bmad.js b/tools/installer/bin/bmad.js
index a8568bd8..3c711322 100755
--- a/tools/installer/bin/bmad.js
+++ b/tools/installer/bin/bmad.js
@@ -493,13 +493,13 @@ async function promptInstallation() {
         type: 'confirm',
         name: 'useAgentPrefix',
         message: "Prefix agent keys with 'bmad-'? (e.g., 'bmad-dev')",
-        default: false,
+        default: true,
       },
       {
         type: 'confirm',
         name: 'useCommandPrefix',
         message: "Prefix command keys with 'bmad:tasks:'? (e.g., 'bmad:tasks:create-doc')",
-        default: false,
+        default: true,
       },
     ]);
 
diff --git a/tools/installer/lib/ide-setup.js b/tools/installer/lib/ide-setup.js
index 9e19c23a..997282e0 100644
--- a/tools/installer/lib/ide-setup.js
+++ b/tools/installer/lib/ide-setup.js
@@ -133,14 +133,14 @@ class IdeSetup extends BaseIdeSetup {
             name: 'useAgentPrefix',
             message:
               "Prefix agent keys with 'bmad-'? (Recommended to avoid collisions, e.g., 'bmad-dev')",
-            default: false,
+            default: true,
           },
           {
             type: 'confirm',
             name: 'useCommandPrefix',
             message:
               "Prefix command keys with 'bmad:tasks:'? (Recommended, e.g., 'bmad:tasks:create-doc')",
-            default: false,
+            default: true,
           },
         ]);
         useAgentPrefix = resp.useAgentPrefix;