diff --git a/.changeset/unlucky-items-fly.md b/.changeset/unlucky-items-fly.md
new file mode 100644
index 000000000..fa06602d1
--- /dev/null
+++ b/.changeset/unlucky-items-fly.md
@@ -0,0 +1,7 @@
+---
+"vscode-ui5-language-assistant": patch
+"@ui5-language-assistant/vscode-ui5-language-assistant-bas-ext": patch
+"@ui5-language-assistant/language-server": patch
+---
+
+activation process fine tuning
diff --git a/packages/language-server/jest.config.js b/packages/language-server/jest.config.js
index 406cef575..5794b8ae8 100644
--- a/packages/language-server/jest.config.js
+++ b/packages/language-server/jest.config.js
@@ -3,6 +3,10 @@ const defaultConfig = require("../../jest.config");
 
 module.exports = {
   ...defaultConfig,
+  coveragePathIgnorePatterns: [
+    "<rootDir>/src/server.ts",
+    "<rootDir>/scripts/update-diagnostics-snapshots.js",
+  ],
   globals: {
     "ts-jest": {
       tsconfig: join(__dirname, "tsconfig-test.json"),
diff --git a/packages/language-server/scripts/update-diagnostics-snapshots.js b/packages/language-server/scripts/update-diagnostics-snapshots.js
index cc590869e..859a69100 100644
--- a/packages/language-server/scripts/update-diagnostics-snapshots.js
+++ b/packages/language-server/scripts/update-diagnostics-snapshots.js
@@ -1,4 +1,3 @@
-/* istanbul ignore file - dev scripts don't need tests */
 const klawSync = require("klaw-sync");
 const { forEach, filter, map } = require("lodash");
 const { resolve, dirname } = require("path");
diff --git a/packages/language-server/src/server.ts b/packages/language-server/src/server.ts
index 023b51754..80b01e9d7 100644
--- a/packages/language-server/src/server.ts
+++ b/packages/language-server/src/server.ts
@@ -1,4 +1,3 @@
-/* istanbul ignore file */
 import { forEach } from "lodash";
 import {
   createConnection,
diff --git a/packages/vscode-ui5-language-assistant/jest.config.js b/packages/vscode-ui5-language-assistant/jest.config.js
index 406cef575..bd373919d 100644
--- a/packages/vscode-ui5-language-assistant/jest.config.js
+++ b/packages/vscode-ui5-language-assistant/jest.config.js
@@ -3,6 +3,10 @@ const defaultConfig = require("../../jest.config");
 
 module.exports = {
   ...defaultConfig,
+  coveragePathIgnorePatterns: [
+    "<rootDir>/scripts/package-vsix.js",
+    "<rootDir>/src/extension.ts",
+  ],
   globals: {
     "ts-jest": {
       tsconfig: join(__dirname, "tsconfig-test.json"),
diff --git a/packages/vscode-ui5-language-assistant/package.json b/packages/vscode-ui5-language-assistant/package.json
index 92dc65962..b5d2ff436 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/scripts/package-vsix.js b/packages/vscode-ui5-language-assistant/scripts/package-vsix.js
index 52bdb82ce..3e3612078 100644
--- a/packages/vscode-ui5-language-assistant/scripts/package-vsix.js
+++ b/packages/vscode-ui5-language-assistant/scripts/package-vsix.js
@@ -1,4 +1,3 @@
-/* istanbul ignore file */
 /**
  * Workaround to: https://github.com/microsoft/vscode-vsce/issues/300
  * This "sorts of" implements the (broken) `yarn list` with support for workspaces
diff --git a/packages/vscode-ui5-language-assistant/src/extension.ts b/packages/vscode-ui5-language-assistant/src/extension.ts
index 00067c1cb..87cc0a11f 100644
--- a/packages/vscode-ui5-language-assistant/src/extension.ts
+++ b/packages/vscode-ui5-language-assistant/src/extension.ts
@@ -1,4 +1,3 @@
-/* istanbul ignore file */
 import { resolve } from "path";
 import { readFileSync } from "fs";
 import {
@@ -55,24 +54,15 @@ let client: LanguageClient;
 let statusBarItem: StatusBarItem;
 let currentModel: UI5Model | undefined;
 
-export async function activate(context: ExtensionContext): Promise<void> {
-  // create the LanguageClient (+Server)
-  client = createLanguageClient(context);
-
-  // register semantic token provider
-  context.subscriptions.push(
-    languages.registerDocumentSemanticTokensProvider(
-      { language: "xml" },
-      bindingSemanticTokensProvider,
-      bindingLegend
-    )
-  );
-
+function init(context: ExtensionContext): void {
   // create the StatusBarItem which displays the used UI5 version
   statusBarItem = createStatusBarItem(context);
 
-  // show/hide and update the status bar
+  // create the LanguageClient (+Server)
+  client = createLanguageClient(context);
+
   client.start().then(() => {
+    // show/hide and update the status bar
     client.onNotification(
       "UI5LanguageAssistant/ui5Model",
       async (model: UI5Model): Promise<void> => await updateCurrentModel(model)
@@ -82,31 +72,56 @@ export async function activate(context: ExtensionContext): Promise<void> {
       (error: Error) => handleContextError(error)
     );
   });
+}
+
+export async function activate(context: ExtensionContext): Promise<void> {
+  // complete initialization task asynchronously
+  init(context);
+
+  // register semantic token provider
+  context.subscriptions.push(
+    languages.registerDocumentSemanticTokensProvider(
+      { language: "xml" },
+      bindingSemanticTokensProvider,
+      bindingLegend
+    )
+  );
+
   window.onDidChangeActiveTextEditor(async () => {
     await updateCurrentModel(undefined);
   });
 
-  languages.registerDocumentFormattingEditProvider("xml", {
-    provideDocumentFormattingEdits(document: TextDocument): TextEdit[] {
-      if (isXMLView(document.uri.fsPath)) {
-        return formatDocument(document);
-      }
-      return [];
-    },
-  });
-  languages.registerDocumentRangeFormattingEditProvider("xml", {
-    provideDocumentRangeFormattingEdits(document, range, options): TextEdit[] {
-      if (isXMLView(document.uri.fsPath)) {
-        return formatRange(document, range, options);
-      }
-      return [];
-    },
-  });
-  client.start();
+  context.subscriptions.push(
+    languages.registerDocumentFormattingEditProvider("xml", {
+      provideDocumentFormattingEdits(document: TextDocument): TextEdit[] {
+        if (isXMLView(document.uri.fsPath)) {
+          return formatDocument(document);
+        }
+        return [];
+      },
+    })
+  );
 
-  const provider = await getManifestSchemaProvider(context);
   context.subscriptions.push(
-    workspace.registerTextDocumentContentProvider(MANIFEST_SCHEMA, provider)
+    languages.registerDocumentRangeFormattingEditProvider("xml", {
+      provideDocumentRangeFormattingEdits(
+        document,
+        range,
+        options
+      ): TextEdit[] {
+        if (isXMLView(document.uri.fsPath)) {
+          return formatRange(document, range, options);
+        }
+        return [];
+      },
+    })
+  );
+
+  context.subscriptions.push(
+    workspace.registerTextDocumentContentProvider(
+      MANIFEST_SCHEMA,
+      await getManifestSchemaProvider(context)
+    )
   );
 }
 
diff --git a/sonar-project.properties b/sonar-project.properties
index ecfb85bff..d3a02e312 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -2,6 +2,7 @@ sonar.organization=sap-1
 sonar.projectKey=SAP_ui5-language-assistant
 sonar.sources=.
 sonar.inclusions=**/*.ts
+sonar.coverage.exclusions=packages/language-server/src/server.ts, packages/language-server/scripts/update-diagnostics-snapshots.js, packages/vscode-ui5-language-assistant/scripts/package-vsix.js, packages/vscode-ui5-language-assistant/src/extension.ts
 sonar.exclusions=**/*.test.ts, **/test/**/*, **/test-packages/**/*, **/scripts/**/*.ts
 sonar.cpd.exclusions=**/i18n.ts, **/*.test.ts, **/test/**/*, **/test-packages/**/*, **/scripts/**/*.ts
 sonar.tests=.