diff --git a/.changeset/unlucky-items-fly.md b/.changeset/unlucky-items-fly.md
new file mode 100644
index 000000000..5ef5fe758
--- /dev/null
+++ b/.changeset/unlucky-items-fly.md
@@ -0,0 +1,6 @@
+---
+"vscode-ui5-language-assistant": patch
+"@ui5-language-assistant/vscode-ui5-language-assistant-bas-ext": patch
+---
+
+activation process fine tuning
diff --git a/packages/vscode-ui5-language-assistant/package.json b/packages/vscode-ui5-language-assistant/package.json
index cc72fdcd9..d40103597 100644
--- a/packages/vscode-ui5-language-assistant/package.json
+++ b/packages/vscode-ui5-language-assistant/package.json
@@ -18,7 +18,7 @@
   "main": "./lib/src/extension",
   "activationEvents": [
     "onFileSystem:manifest-schema",
-    "*"
+    "onLanguage:xml"
   ],
   "contributes": {
     "semanticTokenScopes": [
diff --git a/packages/vscode-ui5-language-assistant/src/extension.ts b/packages/vscode-ui5-language-assistant/src/extension.ts
index d3563abf4..c183dafd3 100644
--- a/packages/vscode-ui5-language-assistant/src/extension.ts
+++ b/packages/vscode-ui5-language-assistant/src/extension.ts
@@ -76,7 +76,7 @@ async function init(context: ExtensionContext): Promise<void> {
 
 export async function activate(context: ExtensionContext): Promise<void> {
   // complete initialization task asynchronously
-  setTimeout(() => void init(context), 0);
+  await init(context);
 
   // register semantic token provider
   context.subscriptions.push(