diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 229ba5dc..a7473815 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,7 @@ jobs:
       androidapp: ${{ steps.filter.outputs.androidapp }}
       appleapp: ${{ steps.filter.outputs.appleapp }}
       gradle-plugins: ${{ steps.filter.outputs.gradle-plugins }}
+      scripts: ${{ steps.filter.outputs.scripts }}
       ci: ${{ steps.filter.outputs.ci }}
     steps:
       - name: Checkout
@@ -56,6 +57,8 @@ jobs:
               - 'apps/brownfield-example-shared-tests/**'
             gradle-plugins:
               - 'gradle-plugins/**'
+            scripts:
+              - 'scripts/**'
             ci:
               - '.github/**'
 
@@ -81,7 +84,10 @@ jobs:
     name: Build, lint, typecheck & Jest
     runs-on: ubuntu-latest
     needs: filter
-    if: needs.filter.outputs.packages == 'true' || needs.filter.outputs.ci == 'true'
+    if: |
+      needs.filter.outputs.packages == 'true' ||
+      needs.filter.outputs.scripts == 'true' ||
+      needs.filter.outputs.ci == 'true'
     steps:
       - name: Checkout
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
@@ -104,6 +110,9 @@ jobs:
       - name: Run packages' tests (Jest & vitest)
         run: yarn test:packages
 
+      - name: Run repo script tests (node:test)
+        run: yarn test:scripts
+
       - name: Test Brownfield CLI (version)
         run: |
           yarn workspace @callstack/react-native-brownfield brownfield --version
diff --git a/package.json b/package.json
index 4dc635da..a88afff0 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "build": "turbo run build",
     "test:packages": "turbo run test --filter='./packages/*'",
     "test:apps": "turbo run test --filter='./apps/*'",
+    "test:scripts": "node --experimental-strip-types --no-warnings --test 'scripts/__tests__/**/*.test.ts'",
     "dev": "yarn workspaces foreach -Api run dev",
     "ci:version": "changeset version && yarn install --no-immutable && node --experimental-strip-types --no-warnings ./scripts/consolidate-changelog.ts",
     "ci:publish": "changeset publish",
diff --git a/scripts/__tests__/check-expo-preview.test.ts b/scripts/__tests__/check-expo-preview.test.ts
index b45e78f0..0911c7e7 100644
--- a/scripts/__tests__/check-expo-preview.test.ts
+++ b/scripts/__tests__/check-expo-preview.test.ts
@@ -1,5 +1,8 @@
 import assert from 'node:assert/strict';
+import { spawnSync } from 'node:child_process';
+import path from 'node:path';
 import test from 'node:test';
+import { fileURLToPath } from 'node:url';
 
 import {
   ensureConsumerNavigationSpec,
@@ -136,3 +139,28 @@ test('fails loudly when expo dependency is missing', () => {
       /Could not locate dependencies\.expo in ExpoAppPreview\/package\.json/,
   });
 });
+
+const repoRoot = path.resolve(
+  path.dirname(fileURLToPath(import.meta.url)),
+  '../..'
+);
+
+test('importing the module does not run the CLI or reach the network', () => {
+  // main() used to be invoked unconditionally at module scope, so merely
+  // importing this file fetched registry.npmjs.org — and an unhandled
+  // rejection from that fetch failed the whole suite. Importing must be
+  // a pure, offline operation.
+  const result = spawnSync(
+    process.execPath,
+    [
+      '--experimental-strip-types',
+      '--no-warnings',
+      '--eval',
+      "import('./scripts/check-expo-preview.ts').then(() => console.log('IMPORT_ONLY'));",
+    ],
+    { cwd: repoRoot, encoding: 'utf8' }
+  );
+
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(result.stdout.trim(), 'IMPORT_ONLY');
+});
diff --git a/scripts/check-expo-preview.ts b/scripts/check-expo-preview.ts
index 49fe4b1a..9b88b877 100644
--- a/scripts/check-expo-preview.ts
+++ b/scripts/check-expo-preview.ts
@@ -8,7 +8,7 @@ import {
   readFileSync,
   writeFileSync,
 } from 'node:fs';
-import { fileURLToPath } from 'node:url';
+import { fileURLToPath, pathToFileURL } from 'node:url';
 
 interface CliOptions {
   expoVersion?: string;
@@ -198,7 +198,7 @@ export function ensureConsumerNavigationSpec(contents: string): string {
   }
 
   const updated = contents.replace(
-    /\n}\s*$/u,
+    /\n\}\s*$/u,
     `${CONSUMER_ROAD_TEST_NAVIGATION_METHODS}\n}`
   );
 
@@ -395,4 +395,16 @@ async function main(): Promise<void> {
   console.log(`Applied: ${applied}`);
 }
 
-main();
+const isDirectInvocation =
+  process.argv[1] !== undefined &&
+  import.meta.url === pathToFileURL(process.argv[1]).href;
+
+// Importing this module (e.g. from the test suite) must not run the CLI —
+// main() fetches the npm registry, and an unhandled rejection from that
+// fetch would fail the importer for reasons unrelated to it.
+if (isDirectInvocation) {
+  main().catch((error: unknown) => {
+    console.error(error);
+    process.exitCode = 1;
+  });
+}