manifest version comes from package

tools/cli/installers/lib/core/manifest-generator.js

@@ -4,6 +4,9 @@ const yaml = require('js-yaml');
 const crypto = require('node:crypto');
 const { getSourcePath, getModulePath } = require('../../../lib/project-root');
 
+// Load package.json for version info
+const packageJson = require('../../../../../package.json');
+
 /**
  * Generates manifest files for installed workflows, agents, and tasks
  */
@@ -451,7 +454,7 @@ class ManifestGenerator {
 
     const manifest = {
       installation: {
-        version: '6.0.0-alpha.0',
+        version: packageJson.version,
         installDate: new Date().toISOString(),
         lastUpdated: new Date().toISOString(),
       },